YQ Connector:Use docker-compose in integrational tests

1 files changed, 5708 insertions, 0 deletions

diff --git a/contrib/tools/swig/Source/Modules/go.cxx b/contrib/tools/swig/Source/Modules/go.cxx
new file mode 100644
index 0000000000..bf63bec639
--- /dev/null
+++ b/contrib/tools/swig/Source/Modules/go.cxx
@@ -0,0 +1,5708 @@
+/* -----------------------------------------------------------------------------
+ * This file is part of SWIG, which is licensed as a whole under version 3
+ * (or any later version) of the GNU General Public License. Some additional
+ * terms also apply to certain portions of SWIG. The full details of the SWIG
+ * license and copyrights can be found in the LICENSE and COPYRIGHT files
+ * included with the SWIG source code as distributed by the SWIG developers
+ * and at https://www.swig.org/legal.html.
+ *
+ * go.cxx
+ *
+ * Go language module for SWIG.
+ * ----------------------------------------------------------------------------- */
+
+#include "swigmod.h"
+#include "cparse.h"
+#include <ctype.h>
+
+/* ----------------------------------------------------------------------
+ * siphash()
+ *
+ * 64-bit SipHash-2-4 to generate unique id for each module
+ * ---------------------------------------------------------------------- */
+
+// An unsigned 64-bit integer that works on a 32-bit host.
+typedef struct {
+  // Assume unsigned long is at least 32 bits.
+  unsigned long hi;
+  unsigned long lo;
+} swig_uint64;
+
+// Rotate v left by bits, which must be <= 32.
+static inline void _rotl(swig_uint64 *v, int bits) {
+  assert(bits <= 32);
+  unsigned long tmp = v->hi;
+  if (bits == 32) {
+    v->hi = v->lo;
+    v->lo = tmp;
+  } else {
+    v->hi = (tmp << bits) | ((0xfffffffful & v->lo) >> (32 - bits));
+    v->lo = (v->lo << bits) | ((0xfffffffful & tmp) >> (32 - bits));
+  }
+}
+
+// dst ^= src
+static inline void _xor(swig_uint64 *dst, swig_uint64 *src) {
+  dst->lo ^= src->lo;
+  dst->hi ^= src->hi;
+}
+
+// dst += src
+static inline void _add(swig_uint64 *dst, swig_uint64 *src) {
+  dst->lo += src->lo;
+  dst->hi += src->hi + ((dst->lo & 0xfffffffful) < (src->lo&0xfffffffful) ? 1 : 0);
+}
+#define SIPROUND                                        \
+  do {                                                  \
+    _add(&v0, &v1); _rotl(&v1, 13); _xor(&v1, &v0); _rotl(&v0, 32); \
+    _add(&v2, &v3); _rotl(&v3, 16); _xor(&v3, &v2); \
+    _add(&v0, &v3); _rotl(&v3, 21); _xor(&v3, &v0); \
+    _add(&v2, &v1); _rotl(&v1, 17); _xor(&v1, &v2); _rotl(&v2, 32); \
+  } while(0)
+
+// Set out to the hash of inc/inlen.
+static void siphash(swig_uint64 *out, const char *inc, unsigned long inlen) {
+  /* "somepseudorandomlygeneratedbytes" */
+  swig_uint64 v0 = {0x736f6d65UL, 0x70736575UL};
+  swig_uint64 v1 = {0x646f7261UL, 0x6e646f6dUL};
+  swig_uint64 v2 = {0x6c796765UL, 0x6e657261UL};
+  swig_uint64 v3 = {0x74656462UL, 0x79746573UL};
+  swig_uint64 b;
+  /* hard-coded k. */
+  swig_uint64 k0 = {0x07060504UL, 0x03020100UL};
+  swig_uint64 k1 = {0x0F0E0D0CUL, 0x0B0A0908UL};
+  int i;
+  const int cROUNDS = 2, dROUNDS = 4;
+  const unsigned char *in = (const unsigned char *)inc;
+  const unsigned char *end = in + inlen - (inlen % 8);
+  int left = inlen & 7;
+  _xor(&v3, &k1); _xor(&v2, &k0); _xor(&v1, &k1); _xor(&v0, &k0);
+  for (; in != end; in += 8) {
+    b.hi = 0; b.lo = 0;
+    for (i = 0; i < 4; i++) {
+      b.lo |= ((unsigned long)in[i]) << (8*i);
+    }
+    for (i = 0; i < 4; i++) {
+      b.hi |= ((unsigned long)in[i+4]) << (8*i);
+    }
+    _xor(&v3, &b);
+    for (i = 0; i < cROUNDS; i++) {
+      SIPROUND;
+    }
+    _xor(&v0, &b);
+  }
+  b.hi = (inlen & 0xff)<<24; b.lo = 0;
+  for (; left; left--) {
+    if (left > 4) {
+      b.hi |= ((unsigned long)in[left-1]) << (8*left-8-32);
+    } else {
+      b.lo |= ((unsigned long)in[left-1]) << (8*left-8);
+    }
+  }
+  _xor(&v3, &b);
+  for(i=0; i<cROUNDS; i++) {
+    SIPROUND;
+  }
+  _xor(&v0, &b); v2.lo ^= 0xff;
+  for(i=0; i<dROUNDS; i++) {
+    SIPROUND;
+  }
+  out->lo = 0; out->hi = 0;
+  _xor(out, &v0); _xor(out, &v1); _xor(out, &v2); _xor(out, &v3);
+}
+#undef SIPROUND
+
+class GO:public Language {
+  static const char *const usage;
+
+  // Go package name.
+  String *package;
+  // SWIG module name.
+  String *module;
+  // Flag for generating gccgo output.
+  bool gccgo_flag;
+  // Prefix to use with gccgo.
+  String *go_prefix;
+  // -fgo-prefix option.
+  String *prefix_option;
+  // -fgo-pkgpath option.
+  String *pkgpath_option;
+  // Prefix for translating %import directive to import statements.
+  String *import_prefix;
+  // Whether to use a shared library.
+  bool use_shlib;
+  // Name of shared library to import.
+  String *soname;
+  // Size in bits of the Go type "int".  0 if not specified.
+  int intgo_type_size;
+
+  /* Output files */
+  File *f_c_begin;
+  File *f_go_begin;
+
+  /* Output fragments */
+  File *f_c_runtime;
+  File *f_c_header;
+  File *f_c_wrappers;
+  File *f_c_init;
+  File *f_c_directors;
+  File *f_c_directors_h;
+  File *f_go_imports;
+  File *f_go_runtime;
+  File *f_go_header;
+  File *f_go_wrappers;
+  File *f_go_directors;
+  File *f_cgo_comment;
+  File *f_cgo_comment_typedefs;
+
+  // True if we imported a module.
+  bool saw_import;
+  // If not NULL, name of import package being processed.
+  String *imported_package;
+  // Build interface methods while handling a class.  This is only
+  // non-NULL when we are handling methods.
+  String *interfaces;
+  // The class node while handling a class.  This is only non-NULL
+  // when we are handling methods.
+  Node *class_node;
+  // The class name while handling a class.  This is only non-NULL
+  // when we are handling methods.  This is the name of the class as
+  // SWIG sees it.
+  String *class_name;
+  // The receiver name while handling a class.  This is only non-NULL
+  // when we are handling methods.  This is the name of the class
+  // as run through goCPointerType.
+  String *class_receiver;
+  // A hash table of method names that we have seen when processing a
+  // class.  This lets us detect base class methods that we don't want
+  // to use.
+  Hash *class_methods;
+  // True when we are generating the wrapper functions for a variable.
+  bool making_variable_wrappers;
+  // True when working with a static member function.
+  bool is_static_member_function;
+  // A hash table of enum types that we have seen but which may not have
+  // been defined.  The index is a SwigType.
+  Hash *undefined_enum_types;
+  // A hash table of types that we have seen but which may not have
+  // been defined.  The index is a SwigType.
+  Hash *undefined_types;
+  // A hash table of classes which were defined.  The index is a Go
+  // type name.
+  Hash *defined_types;
+  // A hash table of all the go_imports already imported. The index is a full
+  // import name e.g. '"runtime"' or '_ "runtime/cgo"' or 'sc "syscall"'.
+  Hash *go_imports;
+  // A unique ID used to make public symbols unique.
+  String *unique_id;
+
+public:
+  GO():package(NULL),
+     module(NULL),
+     gccgo_flag(false),
+     go_prefix(NULL),
+     prefix_option(NULL),
+     pkgpath_option(NULL),
+     import_prefix(NULL),
+     use_shlib(false),
+     soname(NULL),
+     intgo_type_size(0),
+     f_c_begin(NULL),
+     f_go_begin(NULL),
+     f_c_runtime(NULL),
+     f_c_header(NULL),
+     f_c_wrappers(NULL),
+     f_c_init(NULL),
+     f_c_directors(NULL),
+     f_c_directors_h(NULL),
+     f_go_imports(NULL),
+     f_go_runtime(NULL),
+     f_go_header(NULL),
+     f_go_wrappers(NULL),
+     f_go_directors(NULL),
+     f_cgo_comment(NULL),
+     f_cgo_comment_typedefs(NULL),
+     saw_import(false),
+     imported_package(NULL),
+     interfaces(NULL),
+     class_node(NULL),
+     class_name(NULL),
+     class_receiver(NULL),
+     class_methods(NULL),
+     making_variable_wrappers(false),
+     is_static_member_function(false),
+     undefined_enum_types(NULL),
+     undefined_types(NULL),
+     defined_types(NULL),
+     go_imports(NULL),
+     unique_id(NULL) {
+    director_multiple_inheritance = 1;
+    director_language = 1;
+    director_prot_ctor_code = NewString("_swig_gopanic(\"accessing abstract class or protected constructor\");");
+  }
+
+private:
+  /* ------------------------------------------------------------
+   * main()
+   * ------------------------------------------------------------ */
+  virtual void main(int argc, char *argv[]) {
+
+    SWIG_library_directory("go");
+    bool saw_nocgo_flag = false;
+
+    // Process command line options.
+    for (int i = 1; i < argc; i++) {
+      if (argv[i]) {
+	if (strcmp(argv[i], "-package") == 0) {
+	  if (argv[i + 1]) {
+	    package = NewString(argv[i + 1]);
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    i++;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-cgo") == 0) {
+	  Swig_mark_arg(i);
+	} else if (strcmp(argv[i], "-no-cgo") == 0) {
+	  Swig_mark_arg(i);
+	  saw_nocgo_flag = true;
+	} else if (strcmp(argv[i], "-gccgo") == 0) {
+	  Swig_mark_arg(i);
+	  gccgo_flag = true;
+	} else if (strcmp(argv[i], "-go-prefix") == 0) {
+	  if (argv[i + 1]) {
+	    prefix_option = NewString(argv[i + 1]);
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    i++;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-go-pkgpath") == 0) {
+	  if (argv[i + 1]) {
+	    pkgpath_option = NewString(argv[i + 1]);
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    i++;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-import-prefix") == 0) {
+	  if (argv[i + 1]) {
+	    import_prefix = NewString(argv[i + 1]);
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    i++;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-use-shlib") == 0) {
+	  Swig_mark_arg(i);
+	  use_shlib = true;
+	} else if (strcmp(argv[i], "-soname") == 0) {
+	  if (argv[i + 1]) {
+	    soname = NewString(argv[i + 1]);
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    i++;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-longsize") == 0) {
+	  // Ignore for backward compatibility.
+	  if (argv[i + 1]) {
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    ++i;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-intgosize") == 0) {
+	  if (argv[i + 1]) {
+	    intgo_type_size = atoi(argv[i + 1]);
+	    if (intgo_type_size != 32 && intgo_type_size != 64) {
+	      Printf(stderr, "-intgosize not 32 or 64\n");
+	      Swig_arg_error();
+	    }
+	    Swig_mark_arg(i);
+	    Swig_mark_arg(i + 1);
+	    ++i;
+	  } else {
+	    Swig_arg_error();
+	  }
+	} else if (strcmp(argv[i], "-help") == 0) {
+	  Printf(stdout, "%s\n", usage);
+	}
+      }
+    }
+
+    if (saw_nocgo_flag) {
+      Printf(stderr, "SWIG -go: -no-cgo option is no longer supported\n");
+      Exit(EXIT_FAILURE);
+    }
+
+    if (gccgo_flag && !pkgpath_option && !prefix_option) {
+      prefix_option = NewString("go");
+    }
+
+    // Add preprocessor symbol to parser.
+    Preprocessor_define("SWIGGO 1", 0);
+
+    if (gccgo_flag) {
+      Preprocessor_define("SWIGGO_GCCGO 1", 0);
+    }
+
+    if (intgo_type_size == 32) {
+      Preprocessor_define("SWIGGO_INTGO_SIZE 32", 0);
+    } else if (intgo_type_size == 64) {
+      Preprocessor_define("SWIGGO_INTGO_SIZE 64", 0);
+    } else {
+      Preprocessor_define("SWIGGO_INTGO_SIZE 0", 0);
+    }
+
+    // Add typemap definitions.
+    SWIG_typemap_lang("go");
+    SWIG_config_file("go.swg");
+
+    allow_overloading();
+  }
+
+  /* ---------------------------------------------------------------------
+   * top()
+   *
+   * For gc, we are going to create the following files:
+   *
+   * 1) A .c or .cxx file compiled with gcc.  This file will contain
+   *    function wrappers.  Each wrapper will take a pointer to a
+   *    struct holding the arguments, unpack them, and call the real
+   *    function.
+   *
+   * 2) A .go file which defines the Go form of all types, and which
+   *    defines Go function wrappers.  Each wrapper will call the C
+   *    function wrapper in the second file.
+   *
+   * 3) A .c file compiled with 6c/8c.  This file will define
+   *    Go-callable C function wrappers.  Each wrapper will use
+   *    cgocall to call the function wrappers in the first file.
+   *
+   * When generating code for gccgo, we don't need the third file, and
+   * the function wrappers in the first file have a different form.
+   *
+   * --------------------------------------------------------------------- */
+
+  virtual int top(Node *n) {
+    Node *optionsnode = Getattr(Getattr(n, "module"), "options");
+    if (optionsnode) {
+      if (Getattr(optionsnode, "directors")) {
+	allow_directors();
+      }
+      if (Getattr(optionsnode, "dirprot")) {
+	allow_dirprot();
+      }
+      allow_allprotected(GetFlag(optionsnode, "allprotected"));
+    }
+
+    module = Getattr(n, "name");
+    if (!package) {
+      package = Copy(module);
+    }
+    if (!soname && use_shlib) {
+      soname = Copy(package);
+      Append(soname, ".so");
+    }
+
+    if (gccgo_flag) {
+      String *pref;
+      if (pkgpath_option) {
+	pref = pkgpath_option;
+      } else {
+	pref = prefix_option;
+      }
+      go_prefix = NewString("");
+      for (char *p = Char(pref); *p != '\0'; p++) {
+	if ((*p >= 'A' && *p <= 'Z') || (*p >= 'a' && *p <= 'z') || (*p >= '0' && *p <= '9') || *p == '.' || *p == '$') {
+	  Putc(*p, go_prefix);
+	} else {
+	  Putc('_', go_prefix);
+	}
+      }
+      if (!pkgpath_option) {
+	Append(go_prefix, ".");
+	Append(go_prefix, getModuleName(package));
+      }
+    }
+
+    // Get filenames.
+
+    String *swig_filename = Getattr(n, "infile");
+    String *c_filename = Getattr(n, "outfile");
+    String *c_filename_h = Getattr(n, "outfile_h");
+
+    String *go_filename = NewString("");
+    Printf(go_filename, "%s%s.go", SWIG_output_directory(), module);
+
+    // Generate a unique ID based on a hash of the SWIG input.
+    swig_uint64 hash = {0, 0};
+    FILE *swig_input = Swig_open(swig_filename);
+    if (swig_input == NULL) {
+      FileErrorDisplay(swig_filename);
+      Exit(EXIT_FAILURE);
+    }
+    String *swig_input_content = Swig_read_file(swig_input);
+    siphash(&hash, Char(swig_input_content), Len(swig_input_content));
+    Delete(swig_input_content);
+    fclose(swig_input);
+    unique_id = NewString("");
+    Printf(unique_id, "_%s_%08x%08x", getModuleName(package), hash.hi, hash.lo);
+
+    // Open files.
+
+    f_c_begin = NewFile(c_filename, "w", SWIG_output_files());
+    if (!f_c_begin) {
+      FileErrorDisplay(c_filename);
+      Exit(EXIT_FAILURE);
+    }
+
+    if (directorsEnabled()) {
+      if (!c_filename_h) {
+	Printf(stderr, "Unable to determine outfile_h\n");
+	Exit(EXIT_FAILURE);
+      }
+      f_c_directors_h = NewFile(c_filename_h, "w", SWIG_output_files());
+      if (!f_c_directors_h) {
+	FileErrorDisplay(c_filename_h);
+	Exit(EXIT_FAILURE);
+      }
+    }
+
+    f_go_begin = NewFile(go_filename, "w", SWIG_output_files());
+    if (!f_go_begin) {
+      FileErrorDisplay(go_filename);
+      Exit(EXIT_FAILURE);
+    }
+
+    f_c_runtime = NewString("");
+    f_c_header = NewString("");
+    f_c_wrappers = NewString("");
+    f_c_init = NewString("");
+    f_c_directors = NewString("");
+    f_go_imports = NewString("");
+    f_go_runtime = NewString("");
+    f_go_header = NewString("");
+    f_go_wrappers = NewString("");
+    f_go_directors = NewString("");
+    f_cgo_comment = NewString("");
+    f_cgo_comment_typedefs = NewString("");
+
+    Swig_register_filebyname("begin", f_c_begin);
+    Swig_register_filebyname("runtime", f_c_runtime);
+    Swig_register_filebyname("header", f_c_header);
+    Swig_register_filebyname("wrapper", f_c_wrappers);
+    Swig_register_filebyname("init", f_c_init);
+    Swig_register_filebyname("director", f_c_directors);
+    Swig_register_filebyname("director_h", f_c_directors_h);
+    Swig_register_filebyname("go_begin", f_go_begin);
+    Swig_register_filebyname("go_imports", f_go_imports);
+    Swig_register_filebyname("go_runtime", f_go_runtime);
+    Swig_register_filebyname("go_header", f_go_header);
+    Swig_register_filebyname("go_wrapper", f_go_wrappers);
+    Swig_register_filebyname("go_director", f_go_directors);
+    Swig_register_filebyname("cgo_comment", f_cgo_comment);
+    Swig_register_filebyname("cgo_comment_typedefs", f_cgo_comment_typedefs);
+
+    Swig_banner(f_c_begin);
+
+    Swig_obligatory_macros(f_c_runtime, "GO");
+
+    if (CPlusPlus) {
+      Printf(f_c_begin, "\n// source: %s\n\n", swig_filename);
+    } else {
+      Printf(f_c_begin, "\n/* source: %s */\n\n", swig_filename);
+    }
+
+    Printf(f_c_runtime, "#define SWIGMODULE %s\n", module);
+
+    if (gccgo_flag) {
+      Printf(f_c_runtime, "#define SWIGGO_PREFIX %s\n", go_prefix);
+    }
+
+    if (directorsEnabled()) {
+      Printf(f_c_runtime, "#define SWIG_DIRECTORS\n");
+
+      Swig_banner(f_c_directors_h);
+      Printf(f_c_directors_h, "\n// source: %s\n\n", swig_filename);
+
+      Printf(f_c_directors_h, "#ifndef SWIG_%s_WRAP_H_\n", module);
+      Printf(f_c_directors_h, "#define SWIG_%s_WRAP_H_\n\n", module);
+      Printf(f_c_directors_h, "class Swig_memory;\n\n");
+
+      Printf(f_c_directors, "\n// C++ director class methods.\n");
+      String *filename = Swig_file_filename(c_filename_h);
+      Printf(f_c_directors, "#include \"%s\"\n\n", filename);
+      Delete(filename);
+    }
+
+    Swig_banner(f_go_begin);
+    Printf(f_go_begin, "\n// source: %s\n", swig_filename);
+
+    Printv(f_cgo_comment_typedefs, "/*\n", NULL);
+
+    // The cgo program defines the intgo type after our function
+    // definitions, but we want those definitions to be able to use
+    // intgo also.
+    Printv(f_cgo_comment_typedefs, "#define intgo swig_intgo\n", NULL);
+    Printv(f_cgo_comment_typedefs, "typedef void *swig_voidp;\n", NULL);
+
+    // Output module initialization code.
+
+    Printf(f_go_begin, "\npackage %s\n\n", getModuleName(package));
+
+    // All the C++ wrappers should be extern "C".
+
+    Printv(f_c_wrappers, "#ifdef __cplusplus\n", "extern \"C\" {\n", "#endif\n\n", NULL);
+
+    // Set up the hash table for types not defined by SWIG.
+
+    undefined_enum_types = NewHash();
+    undefined_types = NewHash();
+    defined_types = NewHash();
+    go_imports = NewHash();
+
+    // Emit code.
+
+    Language::top(n);
+
+    if (directorsEnabled()) {
+      // Insert director runtime into the f_runtime file (make it occur before %header section)
+      Swig_insert_file("director_common.swg", f_c_runtime);
+      Swig_insert_file("director.swg", f_c_runtime);
+    }
+
+    Delete(go_imports);
+
+    // Write out definitions for the types not defined by SWIG.
+
+    if (Len(undefined_enum_types) > 0)
+      Printv(f_go_wrappers, "\n", NULL);
+    for (Iterator p = First(undefined_enum_types); p.key; p = Next(p)) {
+      String *name = p.item;
+      Printv(f_go_wrappers, "type ", name, " int\n", NULL);
+    }
+
+    Printv(f_go_wrappers, "\n", NULL);
+    for (Iterator p = First(undefined_types); p.key; p = Next(p)) {
+      String *ty = goType(NULL, p.key);
+      if (!Getattr(defined_types, ty)) {
+	String *cp = goCPointerType(p.key, false);
+	if (!Getattr(defined_types, cp)) {
+	  Printv(f_go_wrappers, "type ", cp, " uintptr\n", NULL);
+	  Printv(f_go_wrappers, "type ", ty, " interface {\n", NULL);
+	  Printv(f_go_wrappers, "\tSwigcptr() uintptr;\n", NULL);
+	  Printv(f_go_wrappers, "}\n", NULL);
+	  Printv(f_go_wrappers, "func (p ", cp, ") Swigcptr() uintptr {\n", NULL);
+	  Printv(f_go_wrappers, "\treturn uintptr(p)\n", NULL);
+	  Printv(f_go_wrappers, "}\n\n", NULL);
+	}
+	Delete(cp);
+      }
+      Delete(ty);
+    }
+    Delete(undefined_enum_types);
+    Delete(undefined_types);
+    Delete(defined_types);
+
+    /* Write and cleanup */
+
+    Dump(f_c_header, f_c_runtime);
+
+    if (directorsEnabled()) {
+      Printf(f_c_directors_h, "#endif\n");
+      Delete(f_c_directors_h);
+      f_c_directors_h = NULL;
+
+      Dump(f_c_directors, f_c_runtime);
+      Delete(f_c_directors);
+      f_c_directors = NULL;
+    }
+
+    // End the extern "C".
+    Printv(f_c_wrappers, "#ifdef __cplusplus\n", "}\n", "#endif\n\n", NULL);
+
+    // End the cgo comment.
+    Printv(f_cgo_comment, "#undef intgo\n", NULL);
+    Printv(f_cgo_comment, "*/\n", NULL);
+    Printv(f_cgo_comment, "import \"C\"\n", NULL);
+    Printv(f_cgo_comment, "\n", NULL);
+
+    bool need_panic = false;
+    if (Strstr(f_c_runtime, "SWIG_contract_assert(") != 0 || Strstr(f_c_wrappers, "SWIG_contract_assert(") != 0) {
+      Printv(f_c_begin, "\n#define SWIG_contract_assert(expr, msg) if (!(expr)) { _swig_gopanic(msg); } else\n\n", NULL);
+      need_panic = true;
+    }
+
+    if (!gccgo_flag && (need_panic || Strstr(f_c_runtime, "_swig_gopanic") != 0 || Strstr(f_c_wrappers, "_swig_gopanic") != 0)) {
+      Printv(f_go_header, "//export cgo_panic_", unique_id, "\n", NULL);
+      Printv(f_go_header, "func cgo_panic_", unique_id, "(p *byte) {\n", NULL);
+      Printv(f_go_header, "\ts := (*[1024]byte)(unsafe.Pointer(p))[:]\n", NULL);
+      Printv(f_go_header, "\tfor i, b := range s {\n", NULL);
+      Printv(f_go_header, "\t\tif b == 0 {\n", NULL);
+      Printv(f_go_header, "\t\t\tpanic(string(s[:i]))\n", NULL);
+      Printv(f_go_header, "\t\t}\n", NULL);
+      Printv(f_go_header, "\t}\n", NULL);
+      Printv(f_go_header, "\tpanic(string(s))\n", NULL);
+      Printv(f_go_header, "}\n\n", NULL);
+
+      Printv(f_c_begin, "\nextern\n", NULL);
+      Printv(f_c_begin, "#ifdef __cplusplus\n", NULL);
+      Printv(f_c_begin, "  \"C\"\n", NULL);
+      Printv(f_c_begin, "#endif\n", NULL);
+      Printv(f_c_begin, "  void cgo_panic_", unique_id, "(const char*);\n", NULL);
+      Printv(f_c_begin, "static void _swig_gopanic(const char *p) {\n", NULL);
+      Printv(f_c_begin, "  cgo_panic_", unique_id, "(p);\n", NULL);
+      Printv(f_c_begin, "}\n\n", NULL);
+    }
+
+    Dump(f_c_runtime, f_c_begin);
+    Dump(f_c_wrappers, f_c_begin);
+    Dump(f_c_init, f_c_begin);
+    Dump(f_cgo_comment_typedefs, f_go_begin);
+    Dump(f_cgo_comment, f_go_begin);
+    Dump(f_go_imports, f_go_begin);
+    Dump(f_go_header, f_go_begin);
+    Dump(f_go_runtime, f_go_begin);
+    Dump(f_go_wrappers, f_go_begin);
+    if (directorsEnabled()) {
+      Dump(f_go_directors, f_go_begin);
+    }
+    Delete(f_c_runtime);
+    Delete(f_c_header);
+    Delete(f_c_wrappers);
+    Delete(f_c_init);
+    Delete(f_go_imports);
+    Delete(f_go_runtime);
+    Delete(f_go_header);
+    Delete(f_go_wrappers);
+    Delete(f_go_directors);
+    Delete(f_cgo_comment);
+    Delete(f_cgo_comment_typedefs);
+    Delete(f_c_begin);
+    Delete(f_go_begin);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * importDirective()
+   *
+   * Handle a SWIG import statement by generating a Go import
+   * statement.
+   * ------------------------------------------------------------ */
+
+  virtual int importDirective(Node *n) {
+    String *hold_import = imported_package;
+    String *modname = Getattr(n, "module");
+    if (modname) {
+      if (!Getattr(go_imports, modname)) {
+        Setattr(go_imports, modname, modname);
+        Printv(f_go_imports, "import \"", NULL);
+	if (import_prefix) {
+	  Printv(f_go_imports, import_prefix, "/", NULL);
+	}
+	Printv(f_go_imports, modname, "\"\n", NULL);
+      }
+      imported_package = modname;
+      saw_import = true;
+    }
+    int r = Language::importDirective(n);
+    imported_package = hold_import;
+    return r;
+  }
+
+  /* ----------------------------------------------------------------------
+   * Language::insertDirective()
+   *
+   * If the section is go_imports, store them for later.
+   * ---------------------------------------------------------------------- */
+  virtual int insertDirective(Node *n) {
+    char *section = Char(Getattr(n, "section"));
+    if ((ImportMode && !Getattr(n, "generated")) ||
+        !section || (strcmp(section, "go_imports") != 0)) {
+      return Language::insertDirective(n);
+    }
+
+    char *code = Char(Getattr(n, "code"));
+    char *pch = strtok(code, ",");
+    while (pch != NULL) {
+      // Do not import same thing more than once.
+      if (!Getattr(go_imports, pch)) {
+        Setattr(go_imports, pch, pch);
+        Printv(f_go_imports, "import ", pch, "\n", NULL);
+      }
+      pch = strtok(NULL, ",");
+    }
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * functionWrapper()
+   *
+   * Implement a function.
+   * ---------------------------------------------------------------------- */
+
+  virtual int functionWrapper(Node *n) {
+    if (GetFlag(n, "feature:ignore")) {
+      return SWIG_OK;
+    }
+
+    // We don't need explicit calls.
+    if (GetFlag(n, "explicitcall")) {
+      return SWIG_OK;
+    }
+
+    // Don't emit constructors for abstract director classes.  They
+    // will never succeed anyhow.
+    if (Swig_methodclass(n) && Swig_directorclass(n)
+	&& Strcmp(Char(Getattr(n, "wrap:action")), director_prot_ctor_code) == 0) {
+      return SWIG_OK;
+    }
+
+    String *name = Getattr(n, "sym:name");
+    String *nodetype = Getattr(n, "nodeType");
+    bool is_static = is_static_member_function || isStatic(n);
+    bool is_friend = isFriend(n);
+    bool is_ctor_dtor = false;
+
+    SwigType *result = Getattr(n, "type");
+
+    // For some reason SWIG changs the "type" value during the call to
+    // functionWrapper.  We need to remember the type for possible
+    // overload processing.
+    Setattr(n, "go:type", Copy(result));
+
+    String *go_name;
+
+    String *r1 = NULL;
+    if (making_variable_wrappers) {
+      // Change the name of the variable setter and getter functions
+      // to be more Go like.
+
+      bool is_set = Strcmp(Char(name) + Len(name) - 4, "_set") == 0;
+      assert(is_set || Strcmp(Char(name) + Len(name) - 4, "_get") == 0);
+
+      // Start with Set or Get.
+      go_name = NewString(is_set ? "Set" : "Get");
+
+      // If this is a static variable, put in the class name,
+      // capitalized.
+      if (is_static && class_name) {
+	String *ccn = exportedName(class_name);
+	Append(go_name, ccn);
+	Delete(ccn);
+      }
+
+      // Add the rest of the name, capitalized, dropping the _set or
+      // _get.
+      String *c1 = removeClassname(name);
+      String *c2 = exportedName(c1);
+      char *p = Char(c2);
+      int len = Len(p);
+      for (int i = 0; i < len - 4; ++i) {
+	Putc(p[i], go_name);
+      }
+      Delete(c2);
+      Delete(c1);
+
+      if (!checkIgnoredParameters(n, go_name)) {
+	Delete(go_name);
+	return SWIG_NOWRAP;
+      }
+    } else if (Cmp(nodetype, "constructor") == 0) {
+      is_ctor_dtor = true;
+
+      // Change the name of a constructor to be more Go like.  Change
+      // new_ to New, and capitalize the class name.
+      assert(Strncmp(name, "new_", 4) == 0);
+      String *c1 = NewString(Char(name) + 4);
+      String *c2 = exportedName(c1);
+      go_name = NewString("New");
+      Append(go_name, c2);
+      Delete(c2);
+      Delete(c1);
+
+      if (Swig_methodclass(n) && Swig_directorclass(n)) {
+	// The core SWIG code skips the first parameter when
+	// generating the $nondirector_new string.  Recreate the
+	// action in this case.  But don't it if we are using the
+	// special code for an abstract class.
+	String *call = Swig_cppconstructor_call(getClassType(),
+						Getattr(n, "parms"));
+	SwigType *type = Copy(getClassType());
+	SwigType_add_pointer(type);
+	String *cres = Swig_cresult(type, Swig_cresult_name(), call);
+	Setattr(n, "wrap:action", cres);
+      }
+    } else if (Cmp(nodetype, "destructor") == 0) {
+      // No need to emit protected destructors.
+      if (!is_public(n)) {
+	return SWIG_OK;
+      }
+
+      is_ctor_dtor = true;
+
+      // Change the name of a destructor to be more Go like.  Change
+      // delete_ to Delete and capitalize the class name.
+      assert(Strncmp(name, "delete_", 7) == 0);
+      String *c1 = NewString(Char(name) + 7);
+      String *c2 = exportedName(c1);
+      go_name = NewString("Delete");
+      Append(go_name, c2);
+      Delete(c2);
+      Delete(c1);
+
+      result = NewString("void");
+      r1 = result;
+    } else {
+      if (!checkFunctionVisibility(n, NULL)) {
+	return SWIG_OK;
+      }
+
+      go_name = buildGoName(name, is_static, is_friend);
+
+      if (!checkIgnoredParameters(n, go_name)) {
+	Delete(go_name);
+	return SWIG_NOWRAP;
+      }
+    }
+
+    String *overname = NULL;
+    if (Getattr(n, "sym:overloaded")) {
+      overname = Getattr(n, "sym:overname");
+    } else {
+      String *scope;
+      if (!class_name || is_static || is_ctor_dtor) {
+	scope = NULL;
+      } else {
+	scope = NewString("swiggoscope.");
+	Append(scope, class_name);
+      }
+      if (!checkNameConflict(go_name, n, scope)) {
+	Delete(go_name);
+	return SWIG_NOWRAP;
+      }
+    }
+
+    String *wname = Swig_name_wrapper(name);
+    if (overname) {
+      Append(wname, overname);
+    }
+    Append(wname, unique_id);
+    Setattr(n, "wrap:name", wname);
+
+    ParmList *parms = Getattr(n, "parms");
+    Setattr(n, "wrap:parms", parms);
+
+    int r = makeWrappers(n, go_name, overname, wname, NULL, parms, result, is_static);
+    if (r != SWIG_OK) {
+      return r;
+    }
+
+    if (Getattr(n, "sym:overloaded") && !Getattr(n, "sym:nextSibling")) {
+      String *scope ;
+      if (!class_name || is_static || is_ctor_dtor) {
+	scope = NULL;
+      } else {
+	scope = NewString("swiggoscope.");
+	Append(scope, class_name);
+      }
+      if (!checkNameConflict(go_name, n, scope)) {
+	Delete(go_name);
+	return SWIG_NOWRAP;
+      }
+
+      String *receiver = class_receiver;
+      if (is_static || is_ctor_dtor) {
+	receiver = NULL;
+      }
+      r = makeDispatchFunction(n, go_name, receiver, is_static, NULL, false);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    }
+
+    Delete(wname);
+    Delete(go_name);
+    Delete(r1);
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * staticmemberfunctionHandler()
+   *
+   * For some reason the language code removes the "storage" attribute
+   * for a static function before calling functionWrapper, which means
+   * that we have no way of knowing whether a function is static or
+   * not.  That makes no sense in the Go context.  Here we note that a
+   * function is static.
+   * ---------------------------------------------------------------------- */
+
+  int staticmemberfunctionHandler(Node *n) {
+    assert(!is_static_member_function);
+    is_static_member_function = true;
+    int r = Language::staticmemberfunctionHandler(n);
+    is_static_member_function = false;
+    return r;
+  }
+
+  /* ----------------------------------------------------------------------
+   * makeWrappers()
+   *
+   * Write out the various function wrappers.
+   * n: The function we are emitting.
+   * go_name: The name of the function in Go.
+   * overname: The overload string for overloaded function.
+   * wname: The SWIG wrapped name--the name of the C function.
+   * base: A list of the names of base classes, in the case where this
+   *       is a virtual method not defined in the current class.
+   * parms: The parameters.
+   * result: The result type.
+   * is_static: Whether this is a static method or member.
+   * ---------------------------------------------------------------------- */
+
+  int makeWrappers(Node *n, String *go_name, String *overname, String *wname, List *base, ParmList *parms, SwigType *result, bool is_static) {
+
+    assert(result);
+
+    int ret = SWIG_OK;
+
+    int r = makeCgoWrappers(n, go_name, overname, wname, base, parms, result, is_static);
+    if (r != SWIG_OK) {
+      ret = r;
+    }
+
+    if (class_methods) {
+      Setattr(class_methods, Getattr(n, "name"), NewString(""));
+    }
+
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * struct cgoWrapperInfo
+   *
+   * Information needed by the CGO wrapper functions.
+   * ---------------------------------------------------------------------- */
+
+  struct cgoWrapperInfo {
+    // The function we are generating code for.
+    Node *n;
+    // The name of the Go function.
+    String *go_name;
+    // The overload string for an overloaded function.
+    String *overname;
+    // The name of the C wrapper function.
+    String *wname;
+    // The base classes.
+    List *base;
+    // The parameters.
+    ParmList *parms;
+    // The result type.
+    SwigType *result;
+    // Whether this is a static function, not a class method.
+    bool is_static;
+    // The Go receiver type.
+    String *receiver;
+    // Whether this is a class constructor.
+    bool is_constructor;
+    // Whether this is a class destructor.
+    bool is_destructor;
+  };
+
+  /* ----------------------------------------------------------------------
+   * makeCgoWrappers()
+   *
+   * Write out the wrappers for a function when producing cgo input
+   * files.
+   * ---------------------------------------------------------------------- */
+
+  int makeCgoWrappers(Node *n, String *go_name, String *overname, String *wname, List *base, ParmList *parms, SwigType *result, bool is_static) {
+    Swig_save("makeCgoWrappers", n, "emit:cgotype", "emit:cgotypestruct", NULL);
+
+    cgoWrapperInfo info;
+
+    info.n = n;
+    info.go_name = go_name;
+    info.overname = overname;
+    info.wname = wname;
+    info.base = base;
+    info.parms = parms;
+    info.result = result;
+    info.is_static = is_static;
+
+    info.receiver = class_receiver;
+    if (is_static) {
+      info.receiver = NULL;
+    }
+
+    String *nodetype = Getattr(n, "nodeType");
+    info.is_constructor = Cmp(nodetype, "constructor") == 0;
+    info.is_destructor = Cmp(nodetype, "destructor") == 0;
+    if (info.is_constructor || info.is_destructor) {
+      assert(class_receiver);
+      assert(!base);
+      info.receiver = NULL;
+    }
+
+    int ret = SWIG_OK;
+
+    int r = cgoGoWrapper(&info);
+    if (r != SWIG_OK) {
+      ret = r;
+    }
+
+    r = cgoCommentWrapper(&info);
+    if (r != SWIG_OK) {
+      ret = r;
+    }
+
+    r = cgoGccWrapper(&info);
+    if (r != SWIG_OK) {
+      ret = r;
+    }
+
+    Swig_restore(n);
+
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * cgoGoWrapper()
+   *
+   * Write out Go code to call a cgo function.  This code will go into
+   * the generated Go output file.
+   * ---------------------------------------------------------------------- */
+  int cgoGoWrapper(const cgoWrapperInfo *info) {
+
+    Wrapper *dummy = initGoTypemaps(info->parms);
+
+    bool add_to_interface = interfaces && !info->is_constructor && !info->is_destructor && !info->is_static && !info->overname && checkFunctionVisibility(info->n, NULL);
+
+    Printv(f_go_wrappers, "func ", NULL);
+
+    Parm *p = info->parms;
+    int pi = 0;
+
+    // Add the receiver first if this is a method.
+    if (info->receiver) {
+      Printv(f_go_wrappers, "(", NULL);
+      if (info->base && info->receiver) {
+	Printv(f_go_wrappers, "_swig_base", NULL);
+      } else {
+	Printv(f_go_wrappers, Getattr(p, "lname"), NULL);
+	p = nextParm(p);
+	++pi;
+      }
+      Printv(f_go_wrappers, " ", info->receiver, ") ", NULL);
+    }
+
+    Printv(f_go_wrappers, info->go_name, NULL);
+    if (info->overname) {
+      Printv(f_go_wrappers, info->overname, NULL);
+    }
+    Printv(f_go_wrappers, "(", NULL);
+
+    // If we are doing methods, add this method to the interface.
+    if (add_to_interface) {
+      Printv(interfaces, "\t", info->go_name, "(", NULL);
+    }
+
+    // Write out the parameters to both the function definition and
+    // the interface.
+
+    String *parm_print = NewString("");
+
+    int parm_count = emit_num_arguments(info->parms);
+    int required_count = emit_num_required(info->parms);
+    int args = 0;
+
+    for (; pi < parm_count; ++pi) {
+      p = getParm(p);
+      if (pi == 0 && info->is_destructor) {
+	String *cl = exportedName(class_name);
+	Printv(parm_print, Getattr(p, "lname"), " ", cl, NULL);
+	Delete(cl);
+	++args;
+      } else {
+	if (args > 0) {
+	  Printv(parm_print, ", ", NULL);
+	}
+	++args;
+	if (pi >= required_count) {
+	  Printv(parm_print, "_swig_args ...interface{}", NULL);
+	  break;
+	}
+	Printv(parm_print, Getattr(p, "lname"), " ", NULL);
+	String *tm = goType(p, Getattr(p, "type"));
+	Printv(parm_print, tm, NULL);
+	Delete(tm);
+      }
+      p = nextParm(p);
+    }
+
+    Printv(parm_print, ")", NULL);
+
+    // Write out the result type.
+    if (info->is_constructor) {
+      String *cl = exportedName(class_name);
+      Printv(parm_print, " (_swig_ret ", cl, ")", NULL);
+      Delete(cl);
+    } else {
+      if (SwigType_type(info->result) != T_VOID) {
+	String *tm = goType(info->n, info->result);
+	Printv(parm_print, " (_swig_ret ", tm, ")", NULL);
+	Delete(tm);
+      }
+    }
+
+    Printv(f_go_wrappers, parm_print, NULL);
+    if (add_to_interface) {
+      Printv(interfaces, parm_print, "\n", NULL);
+    }
+
+    // Write out the function body.
+
+    Printv(f_go_wrappers, " {\n", NULL);
+
+    if (parm_count > required_count) {
+      Parm *p = info->parms;
+      int i;
+      for (i = 0; i < required_count; ++i) {
+	p = getParm(p);
+	p = nextParm(p);
+      }
+      for (; i < parm_count; ++i) {
+	p = getParm(p);
+	String *tm = goType(p, Getattr(p, "type"));
+	Printv(f_go_wrappers, "\tvar ", Getattr(p, "lname"), " ", tm, "\n", NULL);
+	Printf(f_go_wrappers, "\tif len(_swig_args) > %d {\n", i - required_count);
+	Printf(f_go_wrappers, "\t\t%s = _swig_args[%d].(%s)\n", Getattr(p, "lname"), i - required_count, tm);
+	Printv(f_go_wrappers, "\t}\n", NULL);
+	Delete(tm);
+	p = nextParm(p);
+      }
+    }
+
+    String *call = NewString("\t");
+
+    String *ret_type = NULL;
+    bool memcpy_ret = false;
+    String *wt = NULL;
+    if (SwigType_type(info->result) != T_VOID) {
+      if (info->is_constructor) {
+	ret_type = exportedName(class_name);
+      } else {
+	ret_type = goImType(info->n, info->result);
+      }
+      Printv(f_go_wrappers, "\tvar swig_r ", ret_type, "\n", NULL);
+
+      bool c_struct_type;
+      Delete(cgoTypeForGoValue(info->n, info->result, &c_struct_type));
+      if (c_struct_type) {
+	memcpy_ret = true;
+      }
+
+      if (memcpy_ret) {
+	Printv(call, "swig_r_p := ", NULL);
+      } else {
+	Printv(call, "swig_r = (", ret_type, ")(", NULL);
+      }
+
+      if (info->is_constructor || goTypeIsInterface(info->n, info->result)) {
+	if (info->is_constructor) {
+	  wt = Copy(class_receiver);
+	} else {
+	  wt = goWrapperType(info->n, info->result, true);
+	}
+	Printv(call, wt, "(", NULL);
+      }
+    }
+
+    Printv(call, "C.", info->wname, "(", NULL);
+
+    args = 0;
+
+    if (parm_count > required_count) {
+      Printv(call, "C.swig_intgo(len(_swig_args))", NULL);
+      ++args;
+    }
+
+    if (info->base && info->receiver) {
+      if (args > 0) {
+	Printv(call, ", ", NULL);
+      }
+      ++args;
+      Printv(call, "C.uintptr_t(_swig_base)", NULL);
+    }
+
+    p = info->parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      if (args > 0) {
+	Printv(call, ", ", NULL);
+      }
+      ++args;
+
+      SwigType *pt = Getattr(p, "type");
+      String *ln = Getattr(p, "lname");
+
+      String *ivar = NewStringf("_swig_i_%d", i);
+
+      String *goin = goGetattr(p, "tmap:goin");
+      if (goin == NULL) {
+	Printv(f_go_wrappers, "\t", ivar, " := ", NULL);
+	bool need_close = false;
+	if ((i == 0 && info->is_destructor) || ((i > 0 || !info->receiver || info->base || info->is_constructor) && goTypeIsInterface(p, pt))) {
+	  Printv(f_go_wrappers, "getSwigcptr(", NULL);
+	  need_close = true;
+	}
+	Printv(f_go_wrappers, ln, NULL);
+	if (need_close) {
+	  Printv(f_go_wrappers, ")", NULL);
+	}
+	Printv(f_go_wrappers, "\n", NULL);
+	Setattr(p, "emit:goinput", ln);
+      } else {
+	String *itm = goImType(p, pt);
+	Printv(f_go_wrappers, "\tvar ", ivar, " ", itm, "\n", NULL);
+	goin = Copy(goin);
+	Replaceall(goin, "$input", ln);
+	Replaceall(goin, "$result", ivar);
+	Printv(f_go_wrappers, goin, "\n", NULL);
+	Delete(goin);
+	Setattr(p, "emit:goinput", ivar);
+      }
+
+      bool c_struct_type;
+      String *ct = cgoTypeForGoValue(p, pt, &c_struct_type);
+      if (c_struct_type) {
+	Printv(call, "*(*C.", ct, ")(unsafe.Pointer(&", ivar, "))", NULL);
+      } else {
+	Printv(call, "C.", ct, "(", ivar, ")", NULL);
+      }
+      Delete(ct);
+
+      p = nextParm(p);
+    }
+
+    Printv(f_go_wrappers, call, ")", NULL);
+    Delete(call);
+
+    if (wt) {
+      // Close the type conversion to the wrapper type.
+      Printv(f_go_wrappers, ")", NULL);
+    }
+    if (SwigType_type(info->result) != T_VOID && !memcpy_ret) {
+      // Close the type conversion of the return value.
+      Printv(f_go_wrappers, ")", NULL);
+    }
+
+    Printv(f_go_wrappers, "\n", NULL);
+
+    if (memcpy_ret) {
+      Printv(f_go_wrappers, "\tswig_r = *(*", ret_type, ")(unsafe.Pointer(&swig_r_p))\n", NULL);
+    }
+    if (ret_type) {
+      Delete(ret_type);
+    }
+
+    goargout(info->parms);
+
+    if (SwigType_type(info->result) != T_VOID) {
+
+      Swig_save("cgoGoWrapper", info->n, "type", "tmap:goout", NULL);
+      Setattr(info->n, "type", info->result);
+
+      String *goout = goTypemapLookup("goout", info->n, "swig_r");
+      if (goout == NULL) {
+	Printv(f_go_wrappers, "\treturn swig_r\n", NULL);
+      } else {
+	String *tm = goType(info->n, info->result);
+	Printv(f_go_wrappers, "\tvar swig_r_1 ", tm, "\n", NULL);
+	goout = Copy(goout);
+	Replaceall(goout, "$input", "swig_r");
+	Replaceall(goout, "$result", "swig_r_1");
+	Printv(f_go_wrappers, goout, "\n", NULL);
+	Printv(f_go_wrappers, "\treturn swig_r_1\n", NULL);
+      }
+
+      Swig_restore(info->n);
+    }
+
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    DelWrapper(dummy);
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * cgoCommentWrapper()
+   *
+   * Write out a cgo function to call a C/C++ function.  This code
+   * will go into the cgo comment in the generated Go output file.
+   * ---------------------------------------------------------------------- */
+  int cgoCommentWrapper(const cgoWrapperInfo *info) {
+    String *ret_type;
+    if (SwigType_type(info->result) == T_VOID) {
+      ret_type = NewString("void");
+    } else {
+      bool c_struct_type;
+      ret_type = cgoTypeForGoValue(info->n, info->result, &c_struct_type);
+    }
+
+    Printv(f_cgo_comment, "extern ", ret_type, " ", info->wname, "(", NULL);
+
+    Delete(ret_type);
+
+    int parm_count = emit_num_arguments(info->parms);
+    int required_count = emit_num_required(info->parms);
+    int args = 0;
+
+    if (parm_count > required_count) {
+      Printv(f_cgo_comment, "intgo _swig_args", NULL);
+      ++args;
+    }
+
+    if (info->base && info->receiver) {
+      if (args > 0) {
+	Printv(f_cgo_comment, ", ", NULL);
+      }
+      ++args;
+      Printv(f_cgo_comment, "uintptr_t _swig_base", NULL);
+    }
+
+    Parm *p = info->parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      if (args > 0) {
+	Printv(f_cgo_comment, ", ", NULL);
+      }
+      ++args;
+
+      SwigType *pt = Getattr(p, "type");
+      String *ln = Getattr(p, "lname");
+
+      bool c_struct_type;
+      String *ct = cgoTypeForGoValue(p, pt, &c_struct_type);
+      Printv(f_cgo_comment, ct, " ", ln, NULL);
+      Delete(ct);
+
+      p = nextParm(p);
+    }
+
+    if (args == 0) {
+      Printv(f_cgo_comment, "void", NULL);
+    }
+
+    Printv(f_cgo_comment, ");\n", NULL);
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * cgoGccWrapper()
+   *
+   * Write out code to the C/C++ wrapper file.  This code will be
+   * called by the code generated by cgoCommentWrapper.
+   * ---------------------------------------------------------------------- */
+  int cgoGccWrapper(const cgoWrapperInfo *info) {
+    Wrapper *f = NewWrapper();
+
+    Swig_save("cgoGccWrapper", info->n, "parms", NULL);
+
+    ParmList *parms = info->parms;
+
+    Parm *base_parm = NULL;
+    if (info->base && !isStatic(info->n)) {
+      SwigType *base_type = Copy(getClassType());
+      SwigType_add_pointer(base_type);
+      base_parm = NewParm(base_type, NewString("arg1"), info->n);
+      set_nextSibling(base_parm, parms);
+      parms = base_parm;
+    }
+
+    emit_parameter_variables(parms, f);
+    emit_attach_parmmaps(parms, f);
+    int parm_count = emit_num_arguments(parms);
+    int required_count = emit_num_required(parms);
+
+    emit_return_variable(info->n, info->result, f);
+
+    // Start the function definition.
+
+    String *fnname = NewString("");
+    Printv(fnname, info->wname, "(", NULL);
+
+    int args = 0;
+
+    if (parm_count > required_count) {
+      Printv(fnname, "intgo _swig_optargc", NULL);
+      ++args;
+    }
+
+    Parm *p = parms;
+    for (int i = 0; i < parm_count; ++i) {
+      if (args > 0) {
+	Printv(fnname, ", ", NULL);
+      }
+      ++args;
+
+      p = getParm(p);
+
+      SwigType *pt = Copy(Getattr(p, "type"));
+      if (SwigType_isarray(pt) && Getattr(p, "tmap:gotype") == NULL) {
+	SwigType_del_array(pt);
+	SwigType_add_pointer(pt);
+      }
+      String *pn = NewStringf("_swig_go_%d", i);
+      String *ct = gcCTypeForGoValue(p, pt, pn);
+      Printv(fnname, ct, NULL);
+      Delete(ct);
+      Delete(pn);
+      Delete(pt);
+
+      p = nextParm(p);
+    }
+      
+    Printv(fnname, ")", NULL);
+
+    if (SwigType_type(info->result) == T_VOID) {
+      Printv(f->def, "void ", fnname, NULL);
+    } else {
+      String *ct = gcCTypeForGoValue(info->n, info->result, fnname);
+      Printv(f->def, ct, NULL);
+      Delete(ct);
+
+      String *ln = NewString("_swig_go_result");
+      ct = gcCTypeForGoValue(info->n, info->result, ln);
+      Wrapper_add_local(f, "_swig_go_result", ct);
+      Delete(ct);
+      Delete(ln);
+    }
+
+    Delete(fnname);
+
+    Printv(f->def, " {\n", NULL);
+
+    // Apply the in typemaps.
+
+    p = parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      String *tm = Getattr(p, "tmap:in");
+      if (!tm) {
+	Swig_warning(WARN_TYPEMAP_IN_UNDEF, input_file, line_number, "unable to use type %s as a function argument\n", SwigType_str(Getattr(p, "type"), 0));
+      } else {
+	tm = Copy(tm);
+	String *pn = NewStringf("_swig_go_%d", i);
+	Replaceall(tm, "$input", pn);
+	if (i < required_count) {
+	  Printv(f->code, "\t", tm, "\n", NULL);
+	} else {
+	  Printf(f->code, "\tif (_swig_optargc > %d) {\n", i - required_count);
+	  Printv(f->code, "\t\t", tm, "\n", NULL);
+	  Printv(f->code, "\t}\n", NULL);
+	}
+	Delete(tm);
+	Setattr(p, "emit:input", pn);
+      }
+      p = nextParm(p);
+    }
+
+    Printv(f->code, "\n", NULL);
+
+    // Do the real work of the function.
+
+    checkConstraints(parms, f);
+
+    emitGoAction(info->n, info->base, parms, info->result, f);
+
+    argout(parms, f);
+
+    cleanupFunction(info->n, f, parms);
+
+    if (SwigType_type(info->result) != T_VOID) {
+      Printv(f->code, "\treturn _swig_go_result;\n", NULL);
+    }
+
+    Printv(f->code, "}\n", NULL);
+
+    Wrapper_print(f, f_c_wrappers);
+
+    Swig_restore(info->n);
+
+    DelWrapper(f);
+    if (base_parm) {
+      Delete(base_parm);
+    }
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * initGoTypemaps()
+   *
+   * Initialize the typenames for a Go wrapper, returning a dummy
+   * Wrapper*.  Also set consistent names for the parameters.
+   * ---------------------------------------------------------------------- */
+
+  Wrapper* initGoTypemaps(ParmList *parms) {
+    Wrapper *dummy = NewWrapper();
+    emit_attach_parmmaps(parms, dummy);
+
+    Parm *p = parms;
+    int parm_count = emit_num_arguments(parms);
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      Swig_cparm_name(p, i);
+      p = nextParm(p);
+    }
+
+    Swig_typemap_attach_parms("default", parms, dummy);
+    Swig_typemap_attach_parms("gotype", parms, dummy);
+    Swig_typemap_attach_parms("goin", parms, dummy);
+    Swig_typemap_attach_parms("goargout", parms, dummy);
+    Swig_typemap_attach_parms("imtype", parms, dummy);
+
+    return dummy;
+  }
+
+  /* -----------------------------------------------------------------------
+   * checkConstraints()
+   *
+   * Check parameter constraints if any.  This is used for the C/C++
+   * function.  This assumes that each parameter has an "emit:input"
+   * property with the name to use to refer to that parameter.
+   * ----------------------------------------------------------------------- */
+
+  void checkConstraints(ParmList *parms, Wrapper *f) {
+    Parm *p = parms;
+    while (p) {
+      String *tm = Getattr(p, "tmap:check");
+      if (!tm) {
+	p = nextSibling(p);
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$input", Getattr(p, "emit:input"));
+	Printv(f->code, tm, "\n\n", NULL);
+	Delete(tm);
+	p = Getattr(p, "tmap:check:next");
+      }
+    }
+  }
+
+  /* -----------------------------------------------------------------------
+   * emitGoAction()
+   *
+   * Emit the action of the function.  This is used for the C/C++ function.
+   * ----------------------------------------------------------------------- */
+
+  void emitGoAction(Node *n, List *base, ParmList *parms, SwigType *result, Wrapper *f) {
+    String *actioncode;
+    if (!base || isStatic(n)) {
+      Swig_director_emit_dynamic_cast(n, f);
+      actioncode = emit_action(n);
+    } else {
+      // Call the base class method.
+      actioncode = NewString("");
+
+      String *current = NewString("");
+      Printv(current, Getattr(parms, "lname"), NULL);
+
+      int vc = 0;
+      for (Iterator bi = First(base); bi.item; bi = Next(bi)) {
+	Printf(actioncode, "  %s *swig_b%d = (%s *)%s;\n", bi.item, vc, bi.item, current);
+	Delete(current);
+	current = NewString("");
+	Printf(current, "swig_b%d", vc);
+	++vc;
+      }
+
+      String *code = Copy(Getattr(n, "wrap:action"));
+      Replace(code, Getattr(parms, "lname"), current, DOH_REPLACE_ANY | DOH_REPLACE_ID);
+      Delete(current);
+      Printv(actioncode, code, "\n", NULL);
+    }
+
+    Swig_save("emitGoAction", n, "type", "tmap:out", NULL);
+
+    Setattr(n, "type", result);
+
+    String *tm = Swig_typemap_lookup_out("out", n, Swig_cresult_name(), f, actioncode);
+    if (!tm) {
+      Swig_warning(WARN_TYPEMAP_OUT_UNDEF, input_file, line_number, "Unable to use return type %s\n", SwigType_str(result, 0));
+    } else {
+      Replaceall(tm, "$result", "_swig_go_result");
+      if (GetFlag(n, "feature:new")) {
+	Replaceall(tm, "$owner", "1");
+      } else {
+	Replaceall(tm, "$owner", "0");
+      }
+      Printv(f->code, tm, "\n", NULL);
+      Delete(tm);
+    }
+
+    Swig_restore(n);
+  }
+
+  /* -----------------------------------------------------------------------
+   * argout()
+   *
+   * Handle argument output code if any.  This is used for the C/C++
+   * function.  This assumes that each parameter has an "emit:input"
+   * property with the name to use to refer to that parameter.
+   * ----------------------------------------------------------------------- */
+
+  void argout(ParmList *parms, Wrapper *f) {
+    Parm *p = parms;
+    while (p) {
+      String *tm = Getattr(p, "tmap:argout");
+      if (!tm) {
+	p = nextSibling(p);
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$result", Swig_cresult_name());
+	Replaceall(tm, "$input", Getattr(p, "emit:input"));
+	Printv(f->code, tm, "\n", NULL);
+	Delete(tm);
+	p = Getattr(p, "tmap:argout:next");
+      }
+    }
+  }
+
+  /* -----------------------------------------------------------------------
+   * goargout()
+   *
+   * Handle Go argument output code if any.  This is used for the Go
+   * function.  This assumes that each parameter has an "emit:goinput"
+   * property with the name to use to refer to that parameter.
+   * ----------------------------------------------------------------------- */
+
+  void goargout(ParmList *parms) {
+    Parm *p = parms;
+    while (p) {
+      String *tm = Getattr(p, "tmap:goargout");
+      if (!tm) {
+	p = nextSibling(p);
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$result", "swig_r");
+	Replaceall(tm, "$input", Getattr(p, "emit:goinput"));
+	Printv(f_go_wrappers, tm, "\n", NULL);
+	Delete(tm);
+	p = Getattr(p, "tmap:goargout:next");
+      }
+    }
+
+    // If we need to memcpy a parameter to pass it to the C code, the
+    // compiler may think that the parameter is not live during the
+    // function call.  If the garbage collector runs while the C/C++
+    // function is running, the parameter may be freed.  Force the
+    // compiler to see the parameter as live across the C/C++ function.
+    int parm_count = emit_num_arguments(parms);
+    p = parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      bool c_struct_type;
+      Delete(cgoTypeForGoValue(p, Getattr(p, "type"), &c_struct_type));
+      if (c_struct_type) {
+	Printv(f_go_wrappers, "\tif Swig_escape_always_false {\n", NULL);
+	Printv(f_go_wrappers, "\t\tSwig_escape_val = ", Getattr(p, "emit:goinput"), "\n", NULL);
+	Printv(f_go_wrappers, "\t}\n", NULL);
+      }
+      p = nextParm(p);
+    }
+  }
+
+  /* -----------------------------------------------------------------------
+   * freearg()
+   *
+   * Handle argument cleanup code if any.  This is used for the C/C++
+   * function.  This assumes that each parameter has an "emit:input"
+   * property with the name to use to refer to that parameter.
+   * ----------------------------------------------------------------------- */
+
+  String *freearg(ParmList *parms) {
+    String *ret = NewString("");
+    Parm *p = parms;
+    while (p) {
+      String *tm = Getattr(p, "tmap:freearg");
+      if (!tm) {
+	p = nextSibling(p);
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$input", Getattr(p, "emit:input"));
+	Printv(ret, tm, "\n", NULL);
+	Delete(tm);
+	p = Getattr(p, "tmap:freearg:next");
+      }
+    }
+    return ret;
+  }
+
+  /* -----------------------------------------------------------------------
+   * cleanupFunction()
+   *
+   * Final function cleanup code.
+   * ----------------------------------------------------------------------- */
+
+  void cleanupFunction(Node *n, Wrapper *f, ParmList *parms) {
+    String *cleanup = freearg(parms);
+    Printv(f->code, cleanup, NULL);
+
+    if (GetFlag(n, "feature:new")) {
+      String *tm = Swig_typemap_lookup("newfree", n, Swig_cresult_name(), 0);
+      if (tm) {
+	Printv(f->code, tm, "\n", NULL);
+	Delete(tm);
+      }
+    }
+
+    Replaceall(f->code, "$cleanup", cleanup);
+    Delete(cleanup);
+
+    /* See if there is any return cleanup code */
+    String *tm;
+    if ((tm = Swig_typemap_lookup("ret", n, Swig_cresult_name(), 0))) {
+      Printf(f->code, "%s\n", tm);
+      Delete(tm);
+    }
+
+    Replaceall(f->code, "$symname", Getattr(n, "sym:name"));
+  }
+
+  /* -----------------------------------------------------------------------
+   * variableHandler()
+   *
+   * This exists just to set the making_variable_wrappers flag.
+   * ----------------------------------------------------------------------- */
+
+  virtual int variableHandler(Node *n) {
+    assert(!making_variable_wrappers);
+    making_variable_wrappers = true;
+    int r = Language::variableHandler(n);
+    making_variable_wrappers = false;
+    return r;
+  }
+
+  /* -----------------------------------------------------------------------
+   * constantWrapper()
+   *
+   * Product a const declaration.
+   * ------------------------------------------------------------------------ */
+
+  virtual int constantWrapper(Node *n) {
+    SwigType *type = Getattr(n, "type");
+
+    if (!SwigType_issimple(type) && SwigType_type(type) != T_STRING) {
+      return goComplexConstant(n, type);
+    }
+
+    if (Swig_storage_isstatic(n)) {
+      return goComplexConstant(n, type);
+    }
+
+    String *go_name = buildGoName(Getattr(n, "sym:name"), false, false);
+
+    String *tm = goType(n, type);
+    String *value = Getattr(n, "value");
+
+    String *copy = NULL;
+    if (SwigType_type(type) == T_BOOL) {
+      if (Cmp(value, "true") != 0 && Cmp(value, "false") != 0) {
+	return goComplexConstant(n, type);
+      }
+    } else if (SwigType_type(type) == T_STRING || SwigType_type(type) == T_CHAR) {
+      // Backslash sequences are somewhat different in Go and C/C++.
+      if (Strchr(value, '\\') != 0) {
+	return goComplexConstant(n, type);
+      }
+    } else {
+      // Accept a 0x prefix, and strip combinations of u and l
+      // suffixes.  Otherwise accept digits, decimal point, and
+      // exponentiation.  Treat anything else as too complicated to
+      // handle as a Go constant.
+      char *p = Char(value);
+      int len = (int)strlen(p);
+      bool need_copy = false;
+      while (len > 0) {
+	char c = p[len - 1];
+	if (c != 'l' && c != 'L' && c != 'u' && c != 'U') {
+	  break;
+	}
+	--len;
+	need_copy = true;
+      }
+      bool is_hex = false;
+      int i = 0;
+      if (p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
+	i = 2;
+	is_hex = true;
+      }
+      for (; i < len; ++i) {
+	switch (p[i]) {
+	case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
+	  break;
+	case 'a': case 'b': case 'c': case 'd': case 'f': case 'A': case 'B': case 'C': case 'D': case 'F':
+	  if (!is_hex) {
+	    return goComplexConstant(n, type);
+	  }
+	  break;
+	case '.': case 'e': case 'E': case '+': case '-':
+	  break;
+	default:
+	  return goComplexConstant(n, type);
+	}
+      }
+      if (need_copy) {
+	copy = Copy(value);
+	Replaceall(copy, p + len, "");
+	value = copy;
+      }
+    }
+
+    if (!checkNameConflict(go_name, n, NULL)) {
+      Delete(tm);
+      Delete(go_name);
+      Delete(copy);
+      return SWIG_NOWRAP;
+    }
+
+    Printv(f_go_wrappers, "const ", go_name, " ", tm, " = ", NULL);
+    if (SwigType_type(type) == T_STRING) {
+      Printv(f_go_wrappers, "\"", value, "\"", NULL);
+    } else if (SwigType_type(type) == T_CHAR) {
+      Printv(f_go_wrappers, "'", value, "'", NULL);
+    } else {
+      Printv(f_go_wrappers, value, NULL);
+    }
+
+    Printv(f_go_wrappers, "\n", NULL);
+
+    Delete(tm);
+    Delete(go_name);
+    Delete(copy);
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * enumDeclaration()
+   *
+   * A C++ enum type turns into a Named go int type.
+   * ---------------------------------------------------------------------- */
+
+  virtual int enumDeclaration(Node *n) {
+    if (getCurrentClass() && (cplus_mode != PUBLIC))
+      return SWIG_NOWRAP;
+
+    String *name = goEnumName(n);
+    if (Strcmp(name, "int") != 0) {
+      if (!ImportMode || !imported_package) {
+	if (!checkNameConflict(name, n, NULL)) {
+	  Delete(name);
+	  return SWIG_NOWRAP;
+	}
+	Printv(f_go_wrappers, "type ", name, " int\n", NULL);
+      } else {
+	String *nw = NewString("");
+	Printv(nw, getModuleName(imported_package), ".", name, NULL);
+	Setattr(n, "go:enumname", nw);
+      }
+    }
+    Delete(name);
+
+    return Language::enumDeclaration(n);
+  }
+
+  /* -----------------------------------------------------------------------
+   * enumvalueDeclaration()
+   *
+   * Declare a single value of an enum type.  We fetch the value by
+   * calling a C/C++ function.
+   * ------------------------------------------------------------------------ */
+
+  virtual int enumvalueDeclaration(Node *n) {
+    if (!is_public(n)) {
+      return SWIG_OK;
+    }
+
+    Swig_require("enumvalueDeclaration", n, "*sym:name", NIL);
+    Node *parent = parentNode(n);
+
+    if (Getattr(parent, "unnamed")) {
+      Setattr(n, "type", NewString("int"));
+    } else {
+      Setattr(n, "type", Getattr(parent, "enumtype"));
+    }
+
+    if (GetFlag(parent, "scopedenum")) {
+      String *symname = Getattr(n, "sym:name");
+      symname = Swig_name_member(0, Getattr(parent, "sym:name"), symname);
+      Setattr(n, "sym:name", symname);
+      Delete(symname);
+    }
+
+    int ret = goComplexConstant(n, Getattr(n, "type"));
+    Swig_restore(n);
+    return ret;
+  }
+
+  /* -----------------------------------------------------------------------
+   * goComplexConstant()
+   *
+   * Handle a const declaration for something which is not a Go constant.
+   * ------------------------------------------------------------------------ */
+
+  int goComplexConstant(Node *n, SwigType *type) {
+    String *symname = Getattr(n, "sym:name");
+    if (!symname) {
+      symname = Getattr(n, "name");
+    }
+
+    String *varname = buildGoName(symname, true, false);
+
+    if (!checkNameConflict(varname, n, NULL)) {
+      Delete(varname);
+      return SWIG_NOWRAP;
+    }
+
+    String *rawval = Getattr(n, "rawval");
+    if (rawval && Len(rawval)) {
+      // Based on Swig_VargetToFunction
+      String *nname = NewStringf("(%s)", rawval);
+      String *call;
+      if (SwigType_isclass(type)) {
+	call = NewStringf("%s", nname);
+      } else {
+	call = SwigType_lcaststr(type, nname);
+      }
+      String *cres = Swig_cresult(type, Swig_cresult_name(), call);
+      Setattr(n, "wrap:action", cres);
+      Delete(nname);
+      Delete(call);
+      Delete(cres);
+    } else {
+      String *get = NewString("");
+      Printv(get, Swig_cresult_name(), " = ", NULL);
+
+      char quote;
+      if (Getattr(n, "wrappedasconstant")) {
+        quote = '\0';
+      } else if (SwigType_type(type) == T_CHAR) {
+        quote = '\'';
+      } else if (SwigType_type(type) == T_STRING) {
+        Printv(get, "(char *)", NULL);
+        quote = '"';
+      } else {
+        quote = '\0';
+      }
+
+      if (quote != '\0') {
+        Printf(get, "%c", quote);
+      }
+
+      Printv(get, Getattr(n, "value"), NULL);
+
+      if (quote != '\0') {
+        Printf(get, "%c", quote);
+      }
+
+      Printv(get, ";\n", NULL);
+
+      Setattr(n, "wrap:action", get);
+      Delete(get);
+    }
+
+    String *sname = Copy(symname);
+    if (class_name) {
+      Append(sname, "_");
+      Append(sname, class_name);
+    }
+
+    String *go_name = NewString("_swig_get");
+    if (class_name) {
+      Append(go_name, class_name);
+      Append(go_name, "_");
+    }
+    Append(go_name, sname);
+
+    String *wname = Swig_name_wrapper(sname);
+    Append(wname, unique_id);
+    Setattr(n, "wrap:name", wname);
+
+    int r = makeWrappers(n, go_name, NULL, wname, NULL, NULL, type, true);
+
+    if (r != SWIG_OK) {
+      return r;
+    }
+
+    String *t = goType(n, type);
+    Printv(f_go_wrappers, "var ", varname, " ", t, " = ", go_name, "()\n", NULL);
+
+    Delete(varname);
+    Delete(t);
+    Delete(go_name);
+    Delete(sname);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * classHandler()
+   *
+   * For a C++ class, in Go we generate both a struct and an
+   * interface.  The interface will declare all the class public
+   * methods.  We will define all the methods on the struct, so that
+   * the struct meets the interface.  We then expect users of the
+   * class to use the interface.
+   * ------------------------------------------------------------ */
+
+  virtual int classHandler(Node *n) {
+    class_node = n;
+
+    List *baselist = Getattr(n, "bases");
+    bool has_base_classes = baselist && Len(baselist) > 0;
+
+    String *name = Getattr(n, "sym:name");
+
+    String *go_name = exportedName(name);
+
+    if (!checkNameConflict(go_name, n, NULL)) {
+      Delete(go_name);
+      SetFlag(n, "go:conflict");
+      return SWIG_NOWRAP;
+    }
+
+    String *go_type_name = goCPointerType(Getattr(n, "classtypeobj"), true);
+
+    class_name = name;
+    class_receiver = go_type_name;
+    class_methods = NewHash();
+
+    int isdir = GetFlag(n, "feature:director");
+    int isnodir = GetFlag(n, "feature:nodirector");
+    bool is_director = isdir && !isnodir;
+
+    Printv(f_go_wrappers, "type ", go_type_name, " uintptr\n\n", NULL);
+
+    // A method to return the pointer to the C++ class.  This is used
+    // by generated code to convert between the interface and the C++
+    // value.
+    Printv(f_go_wrappers, "func (p ", go_type_name, ") Swigcptr() uintptr {\n", NULL);
+    Printv(f_go_wrappers, "\treturn (uintptr)(p)\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    // A method used as a marker for the class, to avoid invalid
+    // interface conversions when using multiple inheritance.
+    Printv(f_go_wrappers, "func (p ", go_type_name, ") SwigIs", go_name, "() {\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    if (is_director) {
+      // Return the interface passed to the NewDirector function.
+      Printv(f_go_wrappers, "func (p ", go_type_name, ") DirectorInterface() interface{} {\n", NULL);
+      Printv(f_go_wrappers, "\treturn nil\n", NULL);
+      Printv(f_go_wrappers, "}\n\n", NULL);
+    }
+
+    // We have seen a definition for this type.
+    Setattr(defined_types, go_name, go_name);
+    Setattr(defined_types, go_type_name, go_type_name);
+
+    interfaces = NewString("");
+
+    int r = Language::classHandler(n);
+    if (r != SWIG_OK) {
+      return r;
+    }
+
+    if (has_base_classes) {
+      // For each method defined in a base class but not defined in
+      // this class, we need to define the method in this class.  We
+      // can't use anonymous field inheritance because it works
+      // differently in Go and in C++.
+
+      Hash *local = NewHash();
+      for (Node *ni = Getattr(n, "firstChild"); ni; ni = nextSibling(ni)) {
+
+	if (!is_public(ni)) {
+	  continue;
+	}
+
+	String *type = Getattr(ni, "nodeType");
+	if (Cmp(type, "constructor") == 0 || Cmp(type, "destructor") == 0) {
+	  continue;
+	}
+
+	String *cname = Getattr(ni, "sym:name");
+	if (!cname) {
+	  cname = Getattr(ni, "name");
+	}
+	if (cname) {
+	  Setattr(local, cname, NewString(""));
+	}
+      }
+
+      for (Iterator b = First(baselist); b.item; b = Next(b)) {
+	List *bases = NewList();
+	Append(bases, Getattr(b.item, "classtype"));
+	int r = addBase(n, b.item, bases, local);
+	if (r != SWIG_OK) {
+	  return r;
+	}
+	Delete(bases);
+      }
+
+      Delete(local);
+
+      Hash *parents = NewHash();
+      addFirstBaseInterface(n, parents, baselist);
+      int r = addExtraBaseInterfaces(n, parents, baselist);
+      Delete(parents);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    }
+
+    Printv(f_go_wrappers, "type ", go_name, " interface {\n", NULL);
+    Printv(f_go_wrappers, "\tSwigcptr() uintptr\n", NULL);
+    Printv(f_go_wrappers, "\tSwigIs", go_name, "()\n", NULL);
+
+    if (is_director) {
+      Printv(f_go_wrappers, "\tDirectorInterface() interface{}\n", NULL);
+    }
+
+    Append(f_go_wrappers, interfaces);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+    Delete(interfaces);
+
+    interfaces = NULL;
+    class_name = NULL;
+    class_receiver = NULL;
+    class_node = NULL;
+    Delete(class_methods);
+    class_methods = NULL;
+
+    Delete(go_type_name);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * addBase()
+   *
+   * Implement methods and members defined in a parent class for a
+   * child class.
+   * ------------------------------------------------------------ */
+
+  int addBase(Node *n, Node *base, List *bases, Hash *local) {
+    if (GetFlag(base, "feature:ignore")) {
+      return SWIG_OK;
+    }
+
+    for (Node *ni = Getattr(base, "firstChild"); ni; ni = nextSibling(ni)) {
+      int r = goBaseEntry(n, bases, local, ni);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    }
+
+    List *baselist = Getattr(base, "bases");
+    if (baselist && Len(baselist) > 0) {
+      for (Iterator b = First(baselist); b.item; b = Next(b)) {
+	List *nb = Copy(bases);
+	Append(nb, Getattr(b.item, "classtype"));
+	int r = addBase(n, b.item, nb, local);
+	Delete(nb);
+	if (r != SWIG_OK) {
+	  return r;
+	}
+      }
+    }
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * goBaseEntry()
+   *
+   * Implement one entry defined in a parent class for a child class.
+   * n is the child class.
+   * ------------------------------------------------------------ */
+
+  int goBaseEntry(Node* n, List* bases, Hash *local, Node* entry) {
+    if (GetFlag(entry, "feature:ignore")) {
+      return SWIG_OK;
+    }
+
+    if (!is_public(entry)) {
+      return SWIG_OK;
+    }
+
+    String *type = Getattr(entry, "nodeType");
+    if (Strcmp(type, "constructor") == 0 || Strcmp(type, "destructor") == 0 || Strcmp(type, "enum") == 0 || Strcmp(type, "using") == 0 || Strcmp(type, "classforward") == 0 || Strcmp(type, "template") == 0) {
+      return SWIG_OK;
+    }
+
+    if (Strcmp(type, "extend") == 0) {
+      for (Node* extend = firstChild(entry); extend; extend = nextSibling(extend)) {
+	if (isStatic(extend)) {
+	  // If we don't do this, the extend_default test case fails.
+	  continue;
+	}
+
+	int r = goBaseEntry(n, bases, local, extend);
+	if (r != SWIG_OK) {
+	  return r;
+	}
+      }
+      return SWIG_OK;
+    }
+
+    String *storage = Getattr(entry, "storage");
+    if (storage && (Strcmp(storage, "typedef") == 0 || Strcmp(storage, "friend") == 0)) {
+      return SWIG_OK;
+    }
+
+    String *mname = Getattr(entry, "sym:name");
+    if (!mname) {
+      return SWIG_OK;
+    }
+
+    String *lname = Getattr(entry, "name");
+    if (Getattr(class_methods, lname)) {
+      return SWIG_OK;
+    }
+    if (Getattr(local, lname)) {
+      return SWIG_OK;
+    }
+    Setattr(local, lname, NewString(""));
+
+    String *ty = NewString(Getattr(entry, "type"));
+    SwigType_push(ty, Getattr(entry, "decl"));
+    String *fullty = SwigType_typedef_resolve_all(ty);
+    bool is_function = SwigType_isfunction(fullty) ? true : false;
+    Delete(ty);
+    Delete(fullty);
+
+    if (is_function) {
+      int r = goBaseMethod(n, bases, entry);
+      if (r != SWIG_OK) {
+	return r;
+      }
+
+      if (Getattr(entry, "sym:overloaded")) {
+	for (Node *on = Getattr(entry, "sym:nextSibling"); on; on = Getattr(on, "sym:nextSibling")) {
+	  r = goBaseMethod(n, bases, on);
+	  if (r != SWIG_OK) {
+	    return r;
+	  }
+	}
+
+	String *receiver = class_receiver;
+	bool is_static = isStatic(entry);
+	if (is_static) {
+	  receiver = NULL;
+	}
+	String *go_name = buildGoName(Getattr(entry, "sym:name"), is_static, false);
+	r = makeDispatchFunction(entry, go_name, receiver, is_static, NULL, false);
+	Delete(go_name);
+	if (r != SWIG_OK) {
+	    return r;
+	}
+      }
+    } else {
+      int r = goBaseVariable(n, bases, entry);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    }
+
+    return SWIG_OK;
+  }
+
+
+  /* ------------------------------------------------------------
+   * goBaseMethod()
+   *
+   * Implement a method defined in a parent class for a child class.
+   * ------------------------------------------------------------ */
+
+  int goBaseMethod(Node *method_class, List *bases, Node *method) {
+    String *symname = Getattr(method, "sym:name");
+    if (!validIdentifier(symname)) {
+      return SWIG_OK;
+    }
+
+    String *name = NewString("");
+    Printv(name, Getattr(method_class, "sym:name"), "_", symname, NULL);
+
+    bool is_static = isStatic(method);
+
+    String *go_name = buildGoName(name, is_static, false);
+
+    String *overname = NULL;
+    if (Getattr(method, "sym:overloaded")) {
+      overname = Getattr(method, "sym:overname");
+    }
+    String *wname = Swig_name_wrapper(name);
+    if (overname) {
+      Append(wname, overname);
+    }
+    Append(wname, unique_id);
+
+    String *result = NewString(Getattr(method, "type"));
+    SwigType_push(result, Getattr(method, "decl"));
+    if (SwigType_isqualifier(result)) {
+      Delete(SwigType_pop(result));
+    }
+    Delete(SwigType_pop_function(result));
+
+    // If the base method is imported, wrap:action may not be set.
+    Swig_save("goBaseMethod", method, "wrap:name", "wrap:action", "parms", NULL);
+    Setattr(method, "wrap:name", wname);
+    if (!Getattr(method, "wrap:action")) {
+      if (!is_static) {
+	Swig_MethodToFunction(method, getNSpace(), getClassType(), (Getattr(method, "template") ? SmartPointer : Extend | SmartPointer), NULL, false);
+	// Remove any self parameter that was just added.
+	ParmList *parms = Getattr(method, "parms");
+	if (parms && Getattr(parms, "self")) {
+	  parms = CopyParmList(nextSibling(parms));
+	  Setattr(method, "parms", parms);
+	}
+      } else {
+	String *call = Swig_cfunction_call(Getattr(method, "name"), Getattr(method, "parms"));
+	Setattr(method, "wrap:action", Swig_cresult(Getattr(method, "type"), Swig_cresult_name(), call));
+      }
+    }
+
+    // A method added by %extend in a base class may have void parms.
+    ParmList* parms = Getattr(method, "parms");
+    if (parms != NULL && SwigType_type(Getattr(parms, "type")) == T_VOID) {
+      parms = NULL;
+    }
+
+    int r = makeWrappers(method, go_name, overname, wname, bases, parms, result, is_static);
+
+    Swig_restore(method);
+
+    Delete(result);
+    Delete(go_name);
+    Delete(name);
+
+    return r;
+  }
+
+  /* ------------------------------------------------------------
+   * goBaseVariable()
+   *
+   * Add accessors for a member variable defined in a parent class for
+   * a child class.
+   * ------------------------------------------------------------ */
+
+  int goBaseVariable(Node *var_class, List *bases, Node *var) {
+    if (isStatic(var)) {
+      return SWIG_OK;
+    }
+
+    String *var_name = buildGoName(Getattr(var, "sym:name"), false, false);
+
+    Swig_save("goBaseVariable", var, "type", "wrap:action", NULL);
+
+    // For a pointer type we apparently have to wrap in the decl.
+    SwigType *var_type = NewString(Getattr(var, "type"));
+    SwigType_push(var_type, Getattr(var, "decl"));
+    Setattr(var, "type", var_type);
+
+    SwigType *vt = Copy(var_type);
+
+    int flags = Extend | SmartPointer | use_naturalvar_mode(var);
+    if (isNonVirtualProtectedAccess(var)) {
+      flags |= CWRAP_ALL_PROTECTED_ACCESS;
+    }
+
+    // Copied from Swig_wrapped_member_var_type.
+    if (SwigType_isclass(vt)) {
+      if (flags & CWRAP_NATURAL_VAR) {
+	if (CPlusPlus) {
+	  if (!SwigType_isconst(vt)) {
+	    SwigType_add_qualifier(vt, "const");
+	  }
+	  SwigType_add_reference(vt);
+	}
+      } else {
+	SwigType_add_pointer(vt);
+      }
+    }
+
+    String *mname = Swig_name_member(getNSpace(), Getattr(var_class, "sym:name"), var_name);
+
+    if (is_assignable(var)) {
+      for (Iterator ki = First(var); ki.key; ki = Next(ki)) {
+	if (Strncmp(ki.key, "tmap:", 5) == 0) {
+	  Delattr(var, ki.key);
+	}
+      }
+      Swig_save("goBaseVariableSet", var, "name", "sym:name", "type", NULL);
+
+      String *mname_set = NewString("Set");
+      Append(mname_set, mname);
+
+      String *go_name = NewString("Set");
+      Append(go_name, var_name);
+
+      Swig_MembersetToFunction(var, class_name, flags);
+
+      String *wname = Swig_name_wrapper(mname_set);
+      Append(wname, unique_id);
+      ParmList *parms = NewParm(vt, var_name, var);
+      String *result = NewString("void");
+      int r = makeWrappers(var, go_name, NULL, wname, bases, parms, result, false);
+      if (r != SWIG_OK) {
+	return r;
+      }
+      Delete(wname);
+      Delete(parms);
+      Delete(result);
+      Delete(go_name);
+      Delete(mname_set);
+
+      Swig_restore(var);
+      for (Iterator ki = First(var); ki.key; ki = Next(ki)) {
+	if (Strncmp(ki.key, "tmap:", 5) == 0) {
+	  Delattr(var, ki.key);
+	}
+      }
+    }
+
+    Swig_MembergetToFunction(var, class_name, flags);
+
+    String *mname_get = NewString("Get");
+    Append(mname_get, mname);
+
+    String *go_name = NewString("Get");
+    Append(go_name, var_name);
+
+    String *wname = Swig_name_wrapper(mname_get);
+    Append(wname, unique_id);
+
+    int r = makeWrappers(var, go_name, NULL, wname, bases, NULL, vt, false);
+    if (r != SWIG_OK) {
+      return r;
+    }
+
+    Delete(wname);
+    Delete(mname_get);
+    Delete(go_name);
+    Delete(mname);
+    Delete(var_name);
+    Delete(var_type);
+    Delete(vt);
+
+    Swig_restore(var);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * addFirstBaseInterface()
+   *
+   * When a C++ class uses multiple inheritance, we can use the C++
+   * pointer for the first base class but not for any subsequent base
+   * classes.  However, the Go interface will match the interface for
+   * all the base classes.  To avoid accidentally treating a class as
+   * a pointer to a base class other than the first one, we use an
+   * isClassname method.  This function adds those methods as
+   * required.
+   *
+   * For convenience when using multiple inheritance, we also add
+   * functions to retrieve the base class pointers.
+   * ------------------------------------------------------------ */
+
+  void addFirstBaseInterface(Node *n, Hash *parents, List *bases) {
+    if (!bases || Len(bases) == 0) {
+      return;
+    }
+    Iterator b = First(bases);
+    if (!GetFlag(b.item, "feature:ignore")) {
+      String *go_name = buildGoName(Getattr(n, "sym:name"), false, false);
+      String *go_type_name = goCPointerType(Getattr(n, "classtypeobj"), true);
+      String *go_base_name = exportedName(Getattr(b.item, "sym:name"));
+      String *go_base_type = goType(n, Getattr(b.item, "classtypeobj"));
+      String *go_base_type_name = goCPointerType(Getattr(b.item, "classtypeobj"), true);
+
+      Printv(f_go_wrappers, "func (p ", go_type_name, ") SwigIs", go_base_name, "() {\n", NULL);
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      Printv(interfaces, "\tSwigIs", go_base_name, "()\n", NULL);
+
+      Printv(f_go_wrappers, "func (p ", go_type_name, ") SwigGet", go_base_name, "() ", go_base_type, " {\n", NULL);
+      Printv(f_go_wrappers, "\treturn ", go_base_type_name, "(getSwigcptr(p))\n", NULL);
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      Printv(interfaces, "\tSwigGet", go_base_name, "() ", go_base_type, "\n", NULL);
+
+      Setattr(parents, go_base_name, NewString(""));
+
+      Delete(go_name);
+      Delete(go_type_name);
+      Delete(go_base_type);
+      Delete(go_base_type_name);
+    }
+
+    addFirstBaseInterface(n, parents, Getattr(b.item, "bases"));
+  }
+
+  /* ------------------------------------------------------------
+   * addExtraBaseInterfaces()
+   *
+   * Add functions to retrieve the base class pointers for all base
+   * classes other than the first.
+   * ------------------------------------------------------------ */
+
+  int addExtraBaseInterfaces(Node *n, Hash *parents, List *bases) {
+    Iterator b = First(bases);
+
+    Node *fb = b.item;
+
+    for (b = Next(b); b.item; b = Next(b)) {
+      if (GetFlag(b.item, "feature:ignore")) {
+	continue;
+      }
+
+      String *go_base_name = exportedName(Getattr(b.item, "sym:name"));
+
+      Swig_save("addExtraBaseInterface", n, "wrap:action", "wrap:name", "wrap:parms", NULL);
+
+      SwigType *type = Copy(Getattr(n, "classtypeobj"));
+      SwigType_add_pointer(type);
+      Parm *parm = NewParm(type, "self", n);
+      Setattr(n, "wrap:parms", parm);
+
+      String *pn = Swig_cparm_name(parm, 0);
+      String *action = NewString("");
+      Printv(action, Swig_cresult_name(), " = (", Getattr(b.item, "classtype"), "*)", pn, ";", NULL);
+      Delete(pn);
+
+      Setattr(n, "wrap:action", action);
+
+      String *name = Copy(class_name);
+      Append(name, "_SwigGet");
+      Append(name, go_base_name);
+
+      String *go_name = NewString("SwigGet");
+      String *c1 = exportedName(go_base_name);
+      Append(go_name, c1);
+      Delete(c1);
+
+      String *wname = Swig_name_wrapper(name);
+      Append(wname, unique_id);
+      Setattr(n, "wrap:name", wname);
+
+      SwigType *result = Copy(Getattr(b.item, "classtypeobj"));
+      SwigType_add_pointer(result);
+
+      int r = makeWrappers(n, go_name, NULL, wname, NULL, parm, result, false);
+      if (r != SWIG_OK) {
+	return r;
+      }
+
+      Swig_restore(n);
+
+      Setattr(parents, go_base_name, NewString(""));
+
+      Delete(go_name);
+      Delete(type);
+      Delete(parm);
+      Delete(action);
+      Delete(result);
+
+      String *ns = NewString("");
+      addParentExtraBaseInterfaces(n, parents, b.item, false, ns);
+      Delete(ns);
+    }
+
+    if (!GetFlag(fb, "feature:ignore")) {
+      String *ns = NewString("");
+      addParentExtraBaseInterfaces(n, parents, fb, true, ns);
+      Delete(ns);
+    }
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * addParentExtraBaseInterfaces()
+   *
+   * Add functions to retrieve the base class pointers for all base
+   * classes of parents other than the first base class at each level.
+   * ------------------------------------------------------------ */
+
+  void addParentExtraBaseInterfaces(Node *n, Hash *parents, Node *base, bool is_base_first, String *sofar) {
+    List *baselist = Getattr(base, "bases");
+    if (!baselist || Len(baselist) == 0) {
+      return;
+    }
+
+    String *go_this_base_name = exportedName(Getattr(base, "sym:name"));
+
+    String *sf = NewString("");
+    Printv(sf, sofar, ".SwigGet", go_this_base_name, "()", NULL);
+
+    Iterator b = First(baselist);
+
+    if (is_base_first) {
+      if (!b.item) {
+	return;
+      }
+      if (!GetFlag(b.item, "feature:ignore")) {
+	addParentExtraBaseInterfaces(n, parents, b.item, true, sf);
+      }
+
+      b = Next(b);
+    }
+
+    String *go_name = buildGoName(Getattr(n, "sym:name"), false, false);
+    String *go_type_name = goCPointerType(Getattr(n, "classtypeobj"), true);
+
+    for (; b.item; b = Next(b)) {
+      if (GetFlag(b.item, "feature:ignore")) {
+	continue;
+      }
+
+      String *go_base_name = exportedName(Getattr(b.item, "sym:name"));
+
+      if (!Getattr(parents, go_base_name)) {
+	Printv(f_go_wrappers, "func (p ", go_type_name, ") SwigGet", go_base_name, "() ", go_base_name, " {\n", NULL);
+	Printv(f_go_wrappers, "\treturn p", sf, ".SwigGet", go_base_name, "()\n", NULL);
+	Printv(f_go_wrappers, "}\n\n", NULL);
+
+	Printv(interfaces, "\tSwigGet", go_base_name, "() ", go_base_name, "\n", NULL);
+
+	addParentExtraBaseInterfaces(n, parents, b.item, false, sf);
+
+	Setattr(parents, go_base_name, NewString(""));
+      }
+    }
+
+    Delete(go_name);
+    Delete(go_type_name);
+    Delete(go_this_base_name);
+    Delete(sf);
+  }
+
+  /* ------------------------------------------------------------
+   * classDirectorInit
+   *
+   * Add support for a director class.
+   *
+   * Virtual inheritance is different in Go and C++.  We implement
+   * director classes by defining a new function in Go,
+   * NewDirectorClassname, which takes a empty interface value and
+   * creates an instance of a new child class.  The new child class
+   * refers all methods back to Go.  The Go code checks whether the
+   * value passed to NewDirectorClassname implements that method; if
+   * it does, it calls it, otherwise it calls back into C++.
+   * ------------------------------------------------------------ */
+
+  int classDirectorInit(Node *n) {
+    // Because we use a different function to handle inheritance in
+    // Go, ordinary creations of the object should not create a
+    // director object.
+    Delete(director_ctor_code);
+    director_ctor_code = NewString("$nondirector_new");
+
+    class_node = n;
+
+    String *name = Getattr(n, "sym:name");
+
+    assert(!class_name);
+    class_name = name;
+
+    String *go_name = exportedName(name);
+
+    String *go_type_name = goCPointerType(Getattr(n, "classtypeobj"), true);
+
+    assert(!class_receiver);
+    class_receiver = go_type_name;
+
+    String *director_struct_name = NewString("_swig_Director");
+    Append(director_struct_name, go_name);
+
+    String *cxx_director_name = NewString("SwigDirector_");
+    Append(cxx_director_name, name);
+
+    // The Go type of the director class.
+    Printv(f_go_wrappers, "type ", director_struct_name, " struct {\n", NULL);
+    Printv(f_go_wrappers, "\t", go_type_name, "\n", NULL);
+    Printv(f_go_wrappers, "\tv interface{}\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    Printv(f_go_wrappers, "func (p *", director_struct_name, ") Swigcptr() uintptr {\n", NULL);
+    Printv(f_go_wrappers, "\treturn getSwigcptr(p.", go_type_name, ")\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    Printv(f_go_wrappers, "func (p *", director_struct_name, ") SwigIs", go_name, "() {\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    Printv(f_go_wrappers, "func (p *", director_struct_name, ") DirectorInterface() interface{} {\n", NULL);
+    Printv(f_go_wrappers, "\treturn p.v\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    // Start defining the director class.
+    Printv(f_c_directors_h, "class ", cxx_director_name, " : public ", Getattr(n, "classtype"), "\n", NULL);
+    Printv(f_c_directors_h, "{\n", NULL);
+    Printv(f_c_directors_h, " public:\n", NULL);
+
+    Delete(director_struct_name);
+    Delete(cxx_director_name);
+
+    class_methods = NewHash();
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * classDirectorConstructor
+   *
+   * Emit a constructor for a director class.
+   * ------------------------------------------------------------ */
+
+  int classDirectorConstructor(Node *n) {
+    bool is_ignored = GetFlag(n, "feature:ignore") ? true : false;
+
+    String *name = Getattr(n, "sym:name");
+    if (!name) {
+      assert(is_ignored);
+      name = Getattr(n, "name");
+    }
+
+    String *overname = NULL;
+    if (Getattr(n, "sym:overloaded")) {
+      overname = Getattr(n, "sym:overname");
+    }
+
+    String *go_name = exportedName(name);
+
+    ParmList *parms = Getattr(n, "parms");
+    Setattr(n, "wrap:parms", parms);
+
+    String *cn = exportedName(Getattr(parentNode(n), "sym:name"));
+
+    String *go_type_name = goCPointerType(Getattr(parentNode(n), "classtypeobj"), true);
+
+    String *director_struct_name = NewString("_swig_Director");
+    Append(director_struct_name, cn);
+
+    String *fn_name = NewString("_swig_NewDirector");
+    Append(fn_name, cn);
+    Append(fn_name, go_name);
+
+    if (!overname && !is_ignored) {
+      if (!checkNameConflict(fn_name, n, NULL)) {
+	return SWIG_NOWRAP;
+      }
+    }
+
+    String *fn_with_over_name = Copy(fn_name);
+    if (overname) {
+      Append(fn_with_over_name, overname);
+    }
+
+    String *wname = Swig_name_wrapper(fn_name);
+
+    if (overname) {
+      Append(wname, overname);
+    }
+    Append(wname, unique_id);
+    Setattr(n, "wrap:name", wname);
+
+    bool is_static = isStatic(n);
+
+    Wrapper *dummy = NewWrapper();
+    emit_attach_parmmaps(parms, dummy);
+    DelWrapper(dummy);
+
+    Swig_typemap_attach_parms("gotype", parms, NULL);
+    Swig_typemap_attach_parms("goin", parms, NULL);
+    Swig_typemap_attach_parms("goargout", parms, NULL);
+    Swig_typemap_attach_parms("imtype", parms, NULL);
+    int parm_count = emit_num_arguments(parms);
+
+    String *func_name = NewString("NewDirector");
+    Append(func_name, go_name);
+
+    String *func_with_over_name = Copy(func_name);
+    if (overname) {
+      Append(func_with_over_name, overname);
+    }
+
+    SwigType *first_type = NewString("int");
+    Parm *first_parm = NewParm(first_type, "swig_p", n);
+    set_nextSibling(first_parm, parms);
+    Setattr(first_parm, "lname", "p");
+
+    Parm *p = parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      Swig_cparm_name(p, i);
+      p = nextParm(p);
+    }
+
+    if (!is_ignored) {
+      Printv(f_cgo_comment, "extern uintptr_t ", wname, "(int", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	bool c_struct_type;
+	String *ct = cgoTypeForGoValue(p, Getattr(p, "type"), &c_struct_type);
+	Printv(f_cgo_comment, ", ", ct, " ", Getattr(p, "lname"), NULL);
+	p = nextParm(p);
+      }
+      Printv(f_cgo_comment, ");\n", NULL);
+
+      // Write out the Go function that calls the wrapper.
+
+      Printv(f_go_wrappers, "func ", func_with_over_name, "(v interface{}", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	Printv(f_go_wrappers, ", ", Getattr(p, "lname"), " ", NULL);
+	String *tm = goType(p, Getattr(p, "type"));
+	Printv(f_go_wrappers, tm, NULL);
+	Delete(tm);
+	p = nextParm(p);
+      }
+
+      Printv(f_go_wrappers, ") ", cn, " {\n", NULL);
+
+      Printv(f_go_wrappers, "\tp := &", director_struct_name, "{0, v}\n", NULL);
+
+      String *call = NewString("");
+
+      Printv(call, "\tp.", class_receiver, " = ", NULL);
+      Printv(call, go_type_name, "(C.", wname, "(C.int(swigDirectorAdd(p))", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	Printv(call, ", ", NULL);
+
+	p = getParm(p);
+	String *pt = Getattr(p, "type");
+	String *ln = Getattr(p, "lname");
+
+	String *ivar = NewStringf("_swig_i_%d", i);
+
+	String *goin = goGetattr(p, "tmap:goin");
+	if (goin == NULL) {
+	  Printv(f_go_wrappers, "\t", ivar, " := ", NULL);
+	  bool need_close = false;
+	  if (goTypeIsInterface(p, pt)) {
+	    Printv(f_go_wrappers, "getSwigcptr(", NULL);
+	    need_close = true;
+	  }
+	  Printv(f_go_wrappers, ln, NULL);
+	  if (need_close) {
+	    Printv(f_go_wrappers, ")", NULL);
+	  }
+	  Printv(f_go_wrappers, "\n", NULL);
+	} else {
+	  String *itm = goImType(p, pt);
+	  Printv(f_go_wrappers, "\tvar ", ivar, " ", itm, "\n", NULL);
+	  goin = Copy(goin);
+	  Replaceall(goin, "$input", ln);
+	  Replaceall(goin, "$result", ivar);
+	  Printv(f_go_wrappers, goin, "\n", NULL);
+	  Delete(goin);
+	}
+
+	Setattr(p, "emit:goinput", ivar);
+
+	bool c_struct_type;
+	String *ct = cgoTypeForGoValue(p, pt, &c_struct_type);
+	if (c_struct_type) {
+	  Printv(call, "*(*C.", ct, ")(unsafe.Pointer(&", ivar, "))", NULL);
+	} else {
+	  Printv(call, "C.", ct, "(", ivar, ")", NULL);
+	}
+	Delete(ct);
+
+	p = nextParm(p);
+      }
+
+      Printv(call, "))", NULL);
+
+      Printv(f_go_wrappers, call, "\n", NULL);
+
+      goargout(parms);
+
+      Printv(f_go_wrappers, "\treturn p\n", NULL);
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      SwigType *result = Copy(Getattr(parentNode(n), "classtypeobj"));
+      SwigType_add_pointer(result);
+
+      Swig_save("classDirectorConstructor", n, "wrap:name", "wrap:action", NULL);
+
+      String *dwname = Swig_name_wrapper(name);
+      Append(dwname, unique_id);
+      Setattr(n, "wrap:name", dwname);
+
+      String *action = NewString("");
+      Printv(action, Swig_cresult_name(), " = new SwigDirector_", class_name, "(", NULL);
+      String *pname = Swig_cparm_name(NULL, 0);
+      Printv(action, pname, NULL);
+      Delete(pname);
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	String *pname = Swig_cparm_name(NULL, i + 1);
+	Printv(action, ", ", NULL);
+	if (SwigType_isreference(Getattr(p, "type"))) {
+	  Printv(action, "*", NULL);
+	}
+	Printv(action, pname, NULL);
+	Delete(pname);
+	p = nextParm(p);
+      }
+      Printv(action, ");", NULL);
+      Setattr(n, "wrap:action", action);
+
+      cgoWrapperInfo info;
+
+      info.n = n;
+      info.go_name = func_name;
+      info.overname = overname;
+      info.wname = wname;
+      info.base = NULL;
+      info.parms = first_parm;
+      info.result = result;
+      info.is_static = false;
+      info.receiver = NULL;
+      info.is_constructor = true;
+      info.is_destructor = false;
+
+      int r = cgoGccWrapper(&info);
+      if (r != SWIG_OK) {
+	return r;
+      }
+
+      Swig_restore(n);
+
+      Delete(result);
+    }
+
+    String *cxx_director_name = NewString("SwigDirector_");
+    Append(cxx_director_name, class_name);
+
+    String *decl = Swig_method_decl(NULL, Getattr(n, "decl"), cxx_director_name, first_parm, 0);
+    Printv(f_c_directors_h, "  ", decl, ";\n", NULL);
+    Delete(decl);
+
+    decl = Swig_method_decl(NULL, Getattr(n, "decl"), cxx_director_name, first_parm, 0);
+    Printv(f_c_directors, cxx_director_name, "::", decl, "\n", NULL);
+    Delete(decl);
+
+    Printv(f_c_directors, "    : ", Getattr(parentNode(n), "classtype"), "(", NULL);
+
+    p = parms;
+    for (int i = 0; i < parm_count; ++i) {
+      p = getParm(p);
+      if (i > 0) {
+	Printv(f_c_directors, ", ", NULL);
+      }
+      String *pn = Getattr(p, "name");
+      assert(pn);
+      Printv(f_c_directors, pn, NULL);
+      p = nextParm(p);
+    }
+    Printv(f_c_directors, "),\n", NULL);
+    Printv(f_c_directors, "      go_val(swig_p), swig_mem(0)\n", NULL);
+    Printv(f_c_directors, "{ }\n\n", NULL);
+
+    if (Getattr(n, "sym:overloaded") && !Getattr(n, "sym:nextSibling")) {
+      int r = makeDispatchFunction(n, func_name, cn, is_static, Getattr(parentNode(n), "classtypeobj"), false);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    }
+
+    Delete(cxx_director_name);
+    Delete(go_name);
+    Delete(cn);
+    Delete(go_type_name);
+    Delete(director_struct_name);
+    Delete(fn_name);
+    Delete(fn_with_over_name);
+    Delete(func_name);
+    Delete(func_with_over_name);
+    Delete(wname);
+    Delete(first_type);
+    Delete(first_parm);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * classDirectorDestructor
+   *
+   * Emit a destructor for a director class.
+   * ------------------------------------------------------------ */
+
+  int classDirectorDestructor(Node *n) {
+    if (!is_public(n)) {
+      return SWIG_OK;
+    }
+
+    bool is_ignored = GetFlag(n, "feature:ignore") ? true : false;
+
+    if (!is_ignored) {
+      String *fnname = NewString("DeleteDirector");
+      String *c1 = exportedName(class_name);
+      Append(fnname, c1);
+      Delete(c1);
+
+      String *wname = Swig_name_wrapper(fnname);
+      Append(wname, unique_id);
+
+      Setattr(n, "wrap:name", fnname);
+
+      Swig_DestructorToFunction(n, getNSpace(), getClassType(), CPlusPlus, Extend);
+
+      ParmList *parms = Getattr(n, "parms");
+      Setattr(n, "wrap:parms", parms);
+
+      String *result = NewString("void");
+      int r = makeWrappers(n, fnname, NULL, wname, NULL, parms, result, isStatic(n));
+      if (r != SWIG_OK) {
+	return r;
+      }
+
+      Delete(result);
+      Delete(fnname);
+      Delete(wname);
+    }
+
+    // Generate the destructor for the C++ director class.  Since the
+    // Go code is keeping a pointer to the C++ object, we need to call
+    // back to the Go code to let it know that the C++ object is gone.
+
+    String *go_name = NewString("Swiggo_DeleteDirector_");
+    Append(go_name, class_name);
+
+    String *cn = exportedName(class_name);
+
+    String *director_struct_name = NewString("_swig_Director");
+    Append(director_struct_name, cn);
+
+    Printv(f_c_directors_h, "  virtual ~SwigDirector_", class_name, "()", NULL);
+
+    String *throws = buildThrow(n);
+    if (throws) {
+      Printv(f_c_directors_h, " ", throws, NULL);
+    }
+
+    Printv(f_c_directors_h, ";\n", NULL);
+
+    String *director_sig = NewString("");
+
+    Printv(director_sig, "SwigDirector_", class_name, "::~SwigDirector_", class_name, "()", NULL);
+
+    if (throws) {
+      Printv(director_sig, " ", throws, NULL);
+      Delete(throws);
+    }
+
+    Printv(director_sig, "\n", NULL);
+    Printv(director_sig, "{\n", NULL);
+
+    if (is_ignored) {
+      Printv(f_c_directors, director_sig, NULL);
+    } else {
+      makeDirectorDestructorWrapper(go_name, director_struct_name, director_sig);
+    }
+
+    Printv(f_c_directors, "  delete swig_mem;\n", NULL);
+
+    Printv(f_c_directors, "}\n\n", NULL);
+
+    Delete(director_sig);
+    Delete(go_name);
+    Delete(cn);
+    Delete(director_struct_name);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * makeDirectorDestructorWrapper
+   *
+   * Emit the function wrapper for the destructor of a director class.
+   * ------------------------------------------------------------ */
+
+  void makeDirectorDestructorWrapper(String *go_name, String *director_struct_name, String *director_sig) {
+    String *wname = Copy(go_name);
+    Append(wname, unique_id);
+
+    Printv(f_go_wrappers, "//export ", wname, "\n", NULL);
+    Printv(f_go_wrappers, "func ", wname, "(c int) {\n", NULL);
+    Printv(f_go_wrappers, "\tswigDirectorLookup(c).(*", director_struct_name, ").", class_receiver, " = 0\n", NULL);
+    Printv(f_go_wrappers, "\tswigDirectorDelete(c)\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    Printv(f_c_directors, "extern \"C\" void ", wname, "(intgo);\n", NULL);
+    Printv(f_c_directors, director_sig, NULL);
+    Printv(f_c_directors, "  ", wname, "(go_val);\n", NULL);
+  }
+
+  /* ------------------------------------------------------------
+   * classDirectorMethod
+   *
+   * Emit a method for a director class, plus its overloads.
+   * ------------------------------------------------------------ */
+
+  int classDirectorMethod(Node *n, Node *parent, String *super) {
+    bool is_ignored = GetFlag(n, "feature:ignore") ? true : false;
+
+    // We don't need explicit calls.
+    if (GetFlag(n, "explicitcall")) {
+      return SWIG_OK;
+    }
+
+    String *name = Getattr(n, "sym:name");
+    if (!name) {
+      assert(is_ignored);
+      (void)is_ignored;
+      name = Getattr(n, "name");
+    }
+
+    bool overloaded = Getattr(n, "sym:overloaded") && !Getattr(n, "explicitcallnode");
+    if (!overloaded) {
+      int r = oneClassDirectorMethod(n, parent, super);
+      if (r != SWIG_OK) {
+	return r;
+      }
+    } else {
+      // Handle overloaded methods here, because otherwise we will
+      // reject them in the class_methods hash table.  We need to use
+      // class_methods so that we correctly handle cases where a
+      // function in one class hides a function of the same name in a
+      // parent class.
+      if (!Getattr(class_methods, name)) {
+	for (Node *on = Getattr(n, "sym:overloaded"); on; on = Getattr(on, "sym:nextSibling")) {
+	  // Swig_overload_rank expects wrap:name and wrap:parms to be
+	  // set.
+	  String *wn = Swig_name_wrapper(Getattr(on, "sym:name"));
+	  Append(wn, Getattr(on, "sym:overname"));
+	  Append(wn, unique_id);
+	  Setattr(on, "wrap:name", wn);
+	  Delete(wn);
+	  Setattr(on, "wrap:parms", Getattr(on, "parms"));
+	}
+      }
+
+      int r = oneClassDirectorMethod(n, parent, super);
+      if (r != SWIG_OK) {
+	return r;
+      }
+
+      if (!Getattr(n, "sym:nextSibling"))
+      {
+	// Last overloaded function
+	Node *on = Getattr(n, "sym:overloaded");
+	bool is_static = isStatic(on);
+
+	String *cn = exportedName(Getattr(parent, "sym:name"));
+	String *go_name = buildGoName(name, is_static, false);
+
+	String *director_struct_name = NewString("_swig_Director");
+	Append(director_struct_name, cn);
+
+	int r = makeDispatchFunction(on, go_name, director_struct_name, is_static, director_struct_name, false);
+	if (r != SWIG_OK) {
+	  return r;
+	}
+
+	if (!GetFlag(n, "abstract")) {
+	  String *go_upcall = NewString("Director");
+	  Append(go_upcall, cn);
+	  Append(go_upcall, go_name);
+	  r = makeDispatchFunction(on, go_upcall, director_struct_name, is_static, director_struct_name, true);
+	  if (r != SWIG_OK) {
+	    return r;
+	  }
+	  Delete(go_upcall);
+	}
+
+	Delete(director_struct_name);
+	Delete(go_name);
+	Delete(cn);
+      }
+    }
+    Setattr(class_methods, name, NewString(""));
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * oneClassDirectorMethod
+   *
+   * Emit a method for a director class.
+   * ------------------------------------------------------------ */
+
+  int oneClassDirectorMethod(Node *n, Node *parent, String *super) {
+    String *symname = Getattr(n, "sym:name");
+    if (!checkFunctionVisibility(n, parent)) {
+      return SWIG_OK;
+    }
+
+    bool is_ignored = GetFlag(n, "feature:ignore") ? true : false;
+    bool is_pure_virtual = (Cmp(Getattr(n, "storage"), "virtual") == 0 && Cmp(Getattr(n, "value"), "0") == 0);
+
+    String *name = Getattr(n, "sym:name");
+    if (!name) {
+      assert(is_ignored);
+      name = Getattr(n, "name");
+    }
+
+    String *overname = NULL;
+    if (Getattr(n, "sym:overloaded")) {
+      overname = Getattr(n, "sym:overname");
+    }
+
+    String *cn = exportedName(Getattr(parent, "sym:name"));
+
+    String *go_type_name = goCPointerType(Getattr(parent, "classtypeobj"), true);
+
+    String *director_struct_name = NewString("_swig_Director");
+    Append(director_struct_name, cn);
+
+    bool is_static = isStatic(n);
+
+    String *go_name = buildGoName(name, is_static, false);
+
+    ParmList *parms = Getattr(n, "parms");
+    Setattr(n, "wrap:parms", parms);
+
+    Wrapper *dummy = NewWrapper();
+    emit_attach_parmmaps(parms, dummy);
+
+    Swig_typemap_attach_parms("gotype", parms, NULL);
+    Swig_typemap_attach_parms("imtype", parms, NULL);
+    int parm_count = emit_num_arguments(parms);
+
+    SwigType *result = Getattr(n, "type");
+
+    // Save the type for overload processing.
+    Setattr(n, "go:type", result);
+
+    String *interface_name = NewString("_swig_DirectorInterface");
+    Append(interface_name, cn);
+    Append(interface_name, go_name);
+    if (overname) {
+      Append(interface_name, overname);
+    }
+
+    String *callback_name = Copy(director_struct_name);
+    Append(callback_name, "_callback_");
+    Append(callback_name, name);
+    Replace(callback_name, "_swig", "Swig", DOH_REPLACE_FIRST);
+    if (overname) {
+      Append(callback_name, overname);
+    }
+    Append(callback_name, unique_id);
+
+    String *upcall_name = Copy(director_struct_name);
+    Append(upcall_name, "_upcall_");
+    Append(upcall_name, go_name);
+
+    String *upcall_wname = Swig_name_wrapper(upcall_name);
+    if (overname) {
+      Append(upcall_wname, overname);
+    }
+    Append(upcall_wname, unique_id);
+
+    String *upcall_gc_name = buildGoWrapperName(upcall_name, overname);
+
+    String *go_with_over_name = Copy(go_name);
+    if (overname) {
+      Append(go_with_over_name, overname);
+    }
+
+    Parm *p = 0;
+    Wrapper *w = NewWrapper();
+
+    Swig_director_parms_fixup(parms);
+
+    Swig_typemap_attach_parms("directorin", parms, w);
+    Swig_typemap_attach_parms("directorargout", parms, w);
+    Swig_typemap_attach_parms("godirectorin", parms, w);
+    Swig_typemap_attach_parms("goin", parms, dummy);
+    Swig_typemap_attach_parms("goargout", parms, dummy);
+
+    DelWrapper(dummy);
+
+    if (!is_ignored) {
+      // We use an interface to see if this method is defined in Go.
+      Printv(f_go_wrappers, "type ", interface_name, " interface {\n", NULL);
+      Printv(f_go_wrappers, "\t", go_with_over_name, "(", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	if (i > 0) {
+	  Printv(f_go_wrappers, ", ", NULL);
+	}
+	String *tm = goType(p, Getattr(p, "type"));
+	Printv(f_go_wrappers, tm, NULL);
+	Delete(tm);
+	p = nextParm(p);
+      }
+
+      Printv(f_go_wrappers, ")", NULL);
+
+      if (SwigType_type(result) != T_VOID) {
+	String *tm = goType(n, result);
+	Printv(f_go_wrappers, " ", tm, NULL);
+	Delete(tm);
+      }
+
+      Printv(f_go_wrappers, "\n", NULL);
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      if (!GetFlag(n, "abstract")) {
+	Printv(f_cgo_comment, "extern ", NULL);
+
+	if (SwigType_type(result) == T_VOID) {
+	  Printv(f_cgo_comment, "void", NULL);
+	} else {
+	  bool c_struct_type;
+	  String *ret_type = cgoTypeForGoValue(n, result, &c_struct_type);
+	  Printv(f_cgo_comment, ret_type, NULL);
+	  Delete(ret_type);
+	}
+
+	Printv(f_cgo_comment, " ", upcall_wname, "(uintptr_t", NULL);
+
+	p = parms;
+	for (int i = 0; i < parm_count; ++i) {
+	  p = getParm(p);
+	  bool c_struct_type;
+	  String *ct = cgoTypeForGoValue(p, Getattr(p, "type"), &c_struct_type);
+	  Printv(f_cgo_comment, ", ", ct, " ", Getattr(p, "lname"), NULL);
+	  p = nextParm(p);
+	}
+	Printv(f_cgo_comment, ");\n", NULL);
+      }
+
+      // Define the method on the director class in Go.
+
+      Printv(f_go_wrappers, "func (swig_p *", director_struct_name, ") ", go_with_over_name, "(", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	if (i > 0) {
+	  Printv(f_go_wrappers, ", ", NULL);
+	}
+	Printv(f_go_wrappers, Getattr(p, "lname"), " ", NULL);
+	String *tm = goType(p, Getattr(p, "type"));
+	Printv(f_go_wrappers, tm, NULL);
+	Delete(tm);
+	p = nextParm(p);
+      }
+
+      Printv(f_go_wrappers, ")", NULL);
+
+      if (SwigType_type(result) != T_VOID) {
+	String *tm = goType(n, result);
+	Printv(f_go_wrappers, " ", tm, NULL);
+	Delete(tm);
+      }
+
+      Printv(f_go_wrappers, " {\n", NULL);
+
+      Printv(f_go_wrappers, "\tif swig_g, swig_ok := swig_p.v.(", interface_name, "); swig_ok {\n", NULL);
+      Printv(f_go_wrappers, "\t\t", NULL);
+      if (SwigType_type(result) != T_VOID) {
+	Printv(f_go_wrappers, "return ", NULL);
+      }
+      Printv(f_go_wrappers, "swig_g.", go_with_over_name, "(", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	if (i > 0) {
+	  Printv(f_go_wrappers, ", ", NULL);
+	}
+	Printv(f_go_wrappers, Getattr(p, "lname"), NULL);
+	p = nextParm(p);
+      }
+
+      Printv(f_go_wrappers, ")\n", NULL);
+      if (SwigType_type(result) == T_VOID) {
+	Printv(f_go_wrappers, "\t\treturn\n", NULL);
+      }
+      Printv(f_go_wrappers, "\t}\n", NULL);
+
+      if (GetFlag(n, "abstract")) {
+	Printv(f_go_wrappers, "\tpanic(\"call to pure virtual method\")\n", NULL);
+      } else {
+	String *ret_type = NULL;
+	bool memcpy_ret = false;
+	String *wt = NULL;
+	String *goout = NULL;
+	if (SwigType_type(result) != T_VOID) {
+	  ret_type = goImType(n, result);
+	  Printv(f_go_wrappers, "\tvar swig_r ", ret_type, "\n", NULL);
+	  goout = goTypemapLookup("goout", n, "swig_r");
+
+	  bool c_struct_type;
+	  Delete(cgoTypeForGoValue(n, result, &c_struct_type));
+	  if (c_struct_type) {
+	    memcpy_ret = true;
+	  }
+	}
+
+	String *call = NewString("");
+
+	Printv(call, "\t", NULL);
+	if (SwigType_type(result) != T_VOID) {
+	  if (memcpy_ret) {
+	    Printv(call, "swig_r_p := ", NULL);
+	  } else {
+	    Printv(call, "swig_r = (", ret_type, ")(", NULL);
+	  }
+	  if (goTypeIsInterface(n, result)) {
+	    wt = goWrapperType(n, result, true);
+	    Printv(call, "(", wt, ")(", NULL);
+	  }
+	}
+
+	Printv(call, "C.", upcall_wname, "(C.uintptr_t(swig_p.",
+	       go_type_name, ")", NULL);
+
+	p = parms;
+	for (int i = 0; i < parm_count; ++i) {
+	  Printv(call, ", ", NULL);
+	  p = getParm(p);
+	  SwigType *pt = Getattr(p, "type");
+
+	  String *ln = Getattr(p, "lname");
+
+	  String *ivar = NewStringf("_swig_i_%d", i);
+
+	  // This is an ordinary call from Go to C++, so adjust using
+	  // the goin typemap.
+	  String *goin = goGetattr(p, "tmap:goin");
+	  if (goin == NULL) {
+	    Printv(f_go_wrappers, "\t", ivar, " := ", NULL);
+	    bool need_close = false;
+	    if (goTypeIsInterface(p, pt)) {
+	      Printv(f_go_wrappers, "getSwigcptr(", NULL);
+	      need_close = true;
+	    }
+	    Printv(f_go_wrappers, ln, NULL);
+	    if (need_close) {
+	      Printv(f_go_wrappers, ")", NULL);
+	    }
+	    Printv(f_go_wrappers, "\n", NULL);
+	  } else {
+	    String *itm = goImType(p, pt);
+	    Printv(f_go_wrappers, "\tvar ", ivar, " ", itm, "\n", NULL);
+	    goin = Copy(goin);
+	    Replaceall(goin, "$input", ln);
+	    Replaceall(goin, "$result", ivar);
+	    Printv(f_go_wrappers, goin, "\n", NULL);
+	    Delete(goin);
+	  }
+
+	  Setattr(p, "emit:goinput", ivar);
+
+	  bool c_struct_type;
+	  String *ct = cgoTypeForGoValue(p, pt, &c_struct_type);
+	  if (c_struct_type) {
+	    Printv(call, "*(*C.", ct, ")(unsafe.Pointer(&", ivar, "))", NULL);
+	  } else {
+	    Printv(call, "C.", ct, "(", ivar, ")", NULL);
+	  }
+
+	  p = nextParm(p);
+	}
+
+	Printv(call, ")", NULL);
+
+	if (wt) {
+	  // Close the type conversion to the wrapper type.
+	  Printv(call, ")", NULL);
+	}
+	if (SwigType_type(result) != T_VOID && !memcpy_ret) {
+	  // Close the type conversion of the return value.
+	  Printv(call, ")", NULL);
+	}
+
+	Printv(call, "\n", NULL);
+
+	Printv(f_go_wrappers, call, NULL);
+	Delete(call);
+
+	if (memcpy_ret) {
+	  Printv(f_go_wrappers, "\tswig_r = *(*", ret_type, ")(unsafe.Pointer(&swig_r_p))\n", NULL);
+	}
+
+	goargout(parms);
+
+	if (SwigType_type(result) != T_VOID) {
+	  if (goout == NULL) {
+	    Printv(f_go_wrappers, "\treturn swig_r\n", NULL);
+	  } else {
+	    String *tm = goType(n, result);
+	    Printv(f_go_wrappers, "\tvar swig_r_1 ", tm, "\n", NULL);
+	    Replaceall(goout, "$input", "swig_r");
+	    Replaceall(goout, "$result", "swig_r_1");
+	    Printv(f_go_wrappers, goout, "\n", NULL);
+	    Printv(f_go_wrappers, "\treturn swig_r_1\n", NULL);
+	  }
+	}
+
+	if (ret_type) {
+	  Delete(ret_type);
+	}
+	if (wt) {
+	  Delete(wt);
+	}
+      }
+
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      if (!GetFlag(n, "abstract")) {
+	// Define a function that uses the Go director type that other
+	// methods in the Go type can call to get parent methods.
+
+	Printv(f_go_wrappers, "func Director", cn, go_with_over_name, "(swig_p ", cn, NULL);
+
+	p = parms;
+	for (int i = 0; i < parm_count; ++i) {
+	  p = getParm(p);
+	  Printv(f_go_wrappers, ", ", Getattr(p, "lname"), " ", NULL);
+	  String *tm = goType(p, Getattr(p, "type"));
+	  Printv(f_go_wrappers, tm, NULL);
+	  Delete(tm);
+	  p = nextParm(p);
+	}
+
+	Printv(f_go_wrappers, ")", NULL);
+
+	if (SwigType_type(result) != T_VOID) {
+	  String *tm = goType(n, result);
+	  Printv(f_go_wrappers, " ", tm, NULL);
+	  Delete(tm);
+	}
+
+	Printv(f_go_wrappers, " {\n", NULL);
+
+	String *ret_type = NULL;
+	bool memcpy_ret = false;
+	String *wt = NULL;
+	String *goout = NULL;
+	if (SwigType_type(result) != T_VOID) {
+	  ret_type = goImType(n, result);
+	  Printv(f_go_wrappers, "\tvar swig_r ", ret_type, "\n", NULL);
+	  goout = goTypemapLookup("goout", n, "swig_r");
+
+	  bool c_struct_type;
+	  Delete(cgoTypeForGoValue(n, result, &c_struct_type));
+	  if (c_struct_type) {
+	    memcpy_ret = true;
+	  }
+	}
+
+	String *call = NewString("");
+
+	Printv(call, "\t", NULL);
+	if (SwigType_type(result) != T_VOID) {
+	  if (memcpy_ret) {
+	    Printv(call, "swig_r_p := ", NULL);
+	  } else {
+	    Printv(call, "swig_r = (", ret_type, ")(", NULL);
+	  }
+	  if (goTypeIsInterface(n, result)) {
+	    wt = goWrapperType(n, result, true);
+	    Printv(call, "(", wt, ")(", NULL);
+	  }
+	}
+
+	Printv(call, "C.", upcall_wname, "(C.uintptr_t(swig_p.(*",
+	       director_struct_name, ").", go_type_name, ")", NULL);
+
+	p = parms;
+	for (int i = 0; i < parm_count; ++i) {
+	  Printv(call, ", ", NULL);
+	  p = getParm(p);
+	  SwigType *pt = Getattr(p, "type");
+
+	  String *ivar = NewStringf("_swig_i_%d", i);
+
+	  String *ln = Copy(Getattr(p, "lname"));
+
+	  String *goin = goGetattr(p, "tmap:goin");
+	  if (goin == NULL) {
+	    Printv(f_go_wrappers, "\t", ivar, " := ", NULL);
+	    bool need_close = false;
+	    if (goTypeIsInterface(p, pt)) {
+	      Printv(f_go_wrappers, "getSwigcptr(", NULL);
+	      need_close = true;
+	    }
+	    Printv(f_go_wrappers, ln, NULL);
+	    if (need_close) {
+	      Printv(f_go_wrappers, ")", NULL);
+	    }
+	    Printv(f_go_wrappers, "\n", NULL);
+	  } else {
+	    String *itm = goImType(p, pt);
+	    Printv(f_go_wrappers, "\tvar ", ivar, " ", itm, "\n", NULL);
+	    goin = Copy(goin);
+	    Replaceall(goin, "$input", ln);
+	    Replaceall(goin, "$result", ivar);
+	    Printv(f_go_wrappers, goin, "\n", NULL);
+	    Delete(goin);
+	  }
+
+	  Setattr(p, "emit:goinput", ivar);
+
+	  bool c_struct_type;
+	  String *ct = cgoTypeForGoValue(p, pt, &c_struct_type);
+	  if (c_struct_type) {
+	    Printv(call, "*(*C.", ct, ")(unsafe.Pointer(&", ivar, "))", NULL);
+	  } else {
+	    Printv(call, "C.", ct, "(", ivar, ")", NULL);
+	  }
+
+	  Delete(ln);
+
+	  p = nextParm(p);
+	}
+
+	Printv(call, ")", NULL);
+
+	if (wt) {
+	  // Close the type conversion to the wrapper type.
+	  Printv(call, ")", NULL);
+	}
+	if (SwigType_type(result) != T_VOID && !memcpy_ret) {
+	  // Close the type conversion of the return value.
+	  Printv(call, ")", NULL);
+	}
+
+	Printv(call, "\n", NULL);
+
+	Printv(f_go_wrappers, call, NULL);
+	Delete(call);
+
+	if (memcpy_ret) {
+	  Printv(f_go_wrappers, "\tswig_r = *(*", ret_type, ")(unsafe.Pointer(&swig_r_p))\n", NULL);
+	}
+
+	goargout(parms);
+
+	if (SwigType_type(result) != T_VOID) {
+	  if (goout == NULL) {
+	    Printv(f_go_wrappers, "\treturn swig_r\n", NULL);
+	  } else {
+	    String *tm = goType(n, result);
+	    Printv(f_go_wrappers, "\tvar swig_r_1 ", tm, "\n", NULL);
+	    Replaceall(goout, "$input", "swig_r");
+	    Replaceall(goout, "$result", "swig_r_1");
+	    Printv(f_go_wrappers, goout, "\n", NULL);
+	    Printv(f_go_wrappers, "\treturn swig_r_1\n", NULL);
+	  }
+	}
+
+	Printv(f_go_wrappers, "}\n\n", NULL);
+
+	if (ret_type) {
+	  Delete(ret_type);
+	}
+	if (wt) {
+	  Delete(wt);
+	}
+
+	// Define a method in the C++ director class that the C++
+	// upcall function can call.  This permits an upcall to a
+	// protected method.
+
+	String *upcall_method_name = NewString("_swig_upcall_");
+	Append(upcall_method_name, name);
+	if (overname) {
+	  Append(upcall_method_name, overname);
+	}
+	SwigType *rtype = Getattr(n, "classDirectorMethods:type");
+	String *upcall_decl = Swig_method_decl(rtype, Getattr(n, "decl"), upcall_method_name, parms, 0);
+	Printv(f_c_directors_h, "  ", upcall_decl, " {\n", NULL);
+	Delete(upcall_decl);
+
+	Printv(f_c_directors_h, "    ", NULL);
+	if (SwigType_type(result) != T_VOID) {
+	  Printv(f_c_directors_h, "return ", NULL);
+	}
+
+	String *super_call = Swig_method_call(super, parms);
+	Printv(f_c_directors_h, super_call, ";\n", NULL);
+	Delete(super_call);
+
+	Printv(f_c_directors_h, "  }\n", NULL);
+
+	// Define the C++ function that the Go function calls.
+
+	SwigType *first_type = NULL;
+	Parm *first_parm = parms;
+	if (!is_static) {
+	  first_type = NewString("SwigDirector_");
+	  Append(first_type, class_name);
+	  SwigType_add_pointer(first_type);
+	  first_parm = NewParm(first_type, "p", n);
+	  set_nextSibling(first_parm, parms);
+	}
+
+	Swig_save("classDirectorMethod", n, "wrap:name", "wrap:action", NULL);
+
+	Setattr(n, "wrap:name", upcall_wname);
+
+	String *action = NewString("");
+	if (SwigType_type(result) != T_VOID) {
+	  Printv(action, Swig_cresult_name(), " = (", SwigType_lstr(result, 0), ")", NULL);
+	  if (SwigType_isreference(result)) {
+	    Printv(action, "&", NULL);
+	  }
+	}
+	Printv(action, Swig_cparm_name(NULL, 0), "->", upcall_method_name, "(", NULL);
+
+	p = parms;
+	int i = 0;
+	while (p != NULL) {
+	  if (SwigType_type(Getattr(p, "type")) != T_VOID) {
+	    String *pname = Swig_cparm_name(NULL, i + 1);
+	    if (i > 0) {
+	      Printv(action, ", ", NULL);
+	    }
+
+	    // A parameter whose type is a reference is converted into a
+	    // pointer type by gcCTypeForGoValue.  We are calling a
+	    // function which expects a reference so we need to convert
+	    // back.
+	    if (SwigType_isreference(Getattr(p, "type"))) {
+	      Printv(action, "*", NULL);
+	    }
+
+	    Printv(action, pname, NULL);
+	    Delete(pname);
+	    i++;
+	  }
+	  p = nextSibling(p);
+	}
+	Printv(action, ");", NULL);
+	Setattr(n, "wrap:action", action);
+
+	cgoWrapperInfo info;
+
+	info.n = n;
+	info.go_name = go_name;
+	info.overname = overname;
+	info.wname = upcall_wname;
+	info.base = NULL;
+	info.parms = first_parm;
+	info.result = result;
+	info.is_static = is_static;
+	info.receiver = NULL;
+	info.is_constructor = false;
+	info.is_destructor = false;
+
+	int r = cgoGccWrapper(&info);
+	if (r != SWIG_OK) {
+	  return r;
+	}
+
+	Delete(first_type);
+	if (first_parm != parms) {
+	  Delete(first_parm);
+	}
+
+	Swig_restore(n);
+	Delete(upcall_method_name);
+      }
+
+      // The Go function which invokes the method.  This is called by
+      // the C++ method on the director class.
+
+      Printv(f_go_wrappers, "//export ", callback_name, "\n",
+	     "func ", callback_name, "(swig_c int", NULL);
+
+      p = parms;
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	String *tm = goWrapperType(p, Getattr(p, "type"), false);
+	Printv(f_go_wrappers, ", ", Getattr(p, "lname"), " ", tm, NULL);
+	Delete(tm);
+	p = nextParm(p);
+      }
+
+      Printv(f_go_wrappers, ") ", NULL);
+      String *result_wrapper = NULL;
+      if (SwigType_type(result) != T_VOID) {
+	result_wrapper = goWrapperType(n, result, true);
+	Printv(f_go_wrappers, "(swig_result ", result_wrapper, ") ", NULL);
+      }
+      Printv(f_go_wrappers, "{\n", NULL);
+
+      if (is_ignored) {
+	Printv(f_go_wrappers, "\treturn\n", NULL);
+      } else {
+	bool result_is_interface = false;
+	String *goout = NULL;
+	if (SwigType_type(result) != T_VOID) {
+	  result_is_interface = goTypeIsInterface(NULL, result);
+	  Printv(f_go_wrappers, "\tvar swig_r ", NULL);
+	  if (!result_is_interface) {
+	    Printv(f_go_wrappers, goType(n, result), NULL);
+	  } else {
+	    Printv(f_go_wrappers, result_wrapper, NULL);
+	  }
+	  Printv(f_go_wrappers, "\n", NULL);
+	  goout = goTypemapLookup("godirectorout", n, "swig_r");
+	}
+
+	String *call = NewString("");
+	Printv(call, "\t", NULL);
+
+	if (SwigType_type(result) != T_VOID) {
+	  Printv(call, "swig_r = ", NULL);
+	  if (result_is_interface) {
+	    Printv(call, result_wrapper, "(getSwigcptr(", NULL);
+	  }
+	}
+	Printv(call, "swig_p.", go_with_over_name, "(", NULL);
+
+	String *goincode = NewString("");
+
+	p = parms;
+	for (int i = 0; i < parm_count; ++i) {
+	  p = getParm(p);
+	  if (i > 0) {
+	    Printv(call, ", ", NULL);
+	  }
+	  SwigType *pt = Getattr(p, "type");
+
+	  String *ln = NewString("");
+
+	  // If the Go representation is an interface type class, then
+	  // we are receiving a uintptr, and must convert to the
+	  // interface.
+	  bool is_interface = goTypeIsInterface(p, pt);
+	  if (is_interface) {
+	    // Passing is_result as true to goWrapperType gives us the
+	    // name of the Go type we need to convert to an interface.
+	    String *wt = goWrapperType(p, pt, true);
+	    Printv(ln, wt, "(", NULL);
+	    Delete(wt);
+	  }
+
+	  Printv(ln, Getattr(p, "lname"), NULL);
+
+	  if (is_interface) {
+	    Printv(ln, ")", NULL);
+	  }
+
+	  String *goin = goGetattr(p, "tmap:godirectorin");
+	  if (goin == NULL) {
+	    Printv(call, ln, NULL);
+	  } else {
+	    String *ivar = NewString("");
+	    Printf(ivar, "_swig_i_%d", i);
+	    String *itm = goType(p, pt);
+	    Printv(f_go_wrappers, "\tvar ", ivar, " ", itm, "\n", NULL);
+	    goin = Copy(goin);
+	    Replaceall(goin, "$input", ln);
+	    Replaceall(goin, "$result", ivar);
+	    Printv(goincode, goin, "\n", NULL);
+	    Delete(goin);
+	    Printv(call, ivar, NULL);
+	    Delete(ivar);
+	  }
+
+	  Delete(ln);
+
+	  p = nextParm(p);
+	}
+
+	Printv(call, ")", NULL);
+
+	if (result_is_interface) {
+	  Printv(call, "))", NULL);
+	}
+	Printv(call, "\n", NULL);
+
+	Printv(f_go_wrappers, "\tswig_p := swigDirectorLookup(swig_c).(*", director_struct_name, ")\n", NULL);
+	Printv(f_go_wrappers, goincode, NULL);
+	Printv(f_go_wrappers, call, NULL);
+	Delete(call);
+
+	if (SwigType_type(result) != T_VOID) {
+	  if (goout == NULL) {
+	    Printv(f_go_wrappers, "\treturn swig_r\n", NULL);
+	  } else {
+	    String *tm = goImType(n, result);
+	    Printv(f_go_wrappers, "\tvar swig_r_1 ", tm, "\n", NULL);
+	    Replaceall(goout, "$input", "swig_r");
+	    Replaceall(goout, "$result", "swig_r_1");
+	    Printv(f_go_wrappers, goout, "\n", NULL);
+	    Printv(f_go_wrappers, "\treturn swig_r_1\n", NULL);
+	  }
+	}
+      }
+
+      Printv(f_go_wrappers, "}\n\n", NULL);
+
+      Delete(result_wrapper);
+
+      Delete(upcall_wname);
+      Delete(upcall_gc_name);
+      Delete(go_with_over_name);
+    }
+
+    if (!is_ignored || is_pure_virtual) {
+      // Declare the method for the director class.
+
+      SwigType *rtype = Getattr(n, "conversion_operator") ? 0 : Getattr(n, "classDirectorMethods:type");
+      String *decl = Swig_method_decl(rtype, Getattr(n, "decl"), Getattr(n, "name"), parms, 0);
+      Printv(f_c_directors_h, "  virtual ", decl, NULL);
+      Delete(decl);
+
+      String *qname = NewString("");
+      Printv(qname, "SwigDirector_", class_name, "::", Getattr(n, "name"), NULL);
+      decl = Swig_method_decl(rtype, Getattr(n, "decl"), qname, parms, 0);
+      Printv(w->def, decl, NULL);
+      Delete(decl);
+      Delete(qname);
+
+      String *throws = buildThrow(n);
+      if (throws) {
+	Printv(f_c_directors_h, " ", throws, NULL);
+	Printv(w->def, " ", throws, NULL);
+	Delete(throws);
+      }
+
+      Printv(f_c_directors_h, ";\n", NULL);
+
+      Printv(w->def, " {\n", NULL);
+
+      if (SwigType_type(result) != T_VOID) {
+	if (!SwigType_isclass(result)) {
+	  if (!(SwigType_ispointer(result) || SwigType_isreference(result))) {
+	    String *construct_result = NewStringf("= SwigValueInit< %s >()", SwigType_lstr(result, 0));
+	    Wrapper_add_localv(w, "c_result", SwigType_lstr(result, "c_result"), construct_result, NIL);
+	    Delete(construct_result);
+	  } else {
+	    Wrapper_add_localv(w, "c_result", SwigType_lstr(result, "c_result"), "= 0", NIL);
+	  }
+	} else {
+	  String *cres = SwigType_lstr(result, "c_result");
+	  Printf(w->code, "%s;\n", cres);
+	  Delete(cres);
+	}
+      }
+
+      if (!is_ignored) {
+	makeDirectorMethodWrapper(n, w, callback_name);
+      } else {
+	assert(is_pure_virtual);
+	Printv(w->code, "  _swig_gopanic(\"call to pure virtual function ", Getattr(parent, "sym:name"), name, "\");\n", NULL);
+	if (SwigType_type(result) != T_VOID) {
+	  String *retstr = SwigType_rcaststr(result, "c_result");
+	  Printv(w->code, "  return ", retstr, ";\n", NULL);
+	  Delete(retstr);
+	}
+      }
+
+      Printv(w->code, "}", NULL);
+
+      Replaceall(w->code, "$symname", symname);
+      Wrapper_print(w, f_c_directors);
+    }
+
+    Delete(cn);
+    Delete(go_type_name);
+    Delete(director_struct_name);
+    Delete(interface_name);
+    Delete(callback_name);
+    Delete(upcall_name);
+    Delete(go_name);
+    DelWrapper(w);
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * makeDirectorMethodWrapper
+   *
+   * Emit the function wrapper for a director method.
+   * ------------------------------------------------------------ */
+  void makeDirectorMethodWrapper(Node *n, Wrapper *w, String *callback_name) {
+    ParmList *parms = Getattr(n, "wrap:parms");
+    SwigType *result = Getattr(n, "type");
+
+    Printv(f_c_directors, "extern \"C\" ", NULL);
+
+    String *fnname = Copy(callback_name);
+    Append(fnname, "(int");
+
+    Parm *p = parms;
+    while (p) {
+      while (checkAttribute(p, "tmap:directorin:numinputs", "0")) {
+	p = Getattr(p, "tmap:directorin:next");
+      }
+      String *cg = gcCTypeForGoValue(p, Getattr(p, "type"), Getattr(p, "lname"));
+      Printv(fnname, ", ", cg, NULL);
+      Delete(cg);
+      p = Getattr(p, "tmap:directorin:next");
+    }
+
+    Printv(fnname, ")", NULL);
+
+    if (SwigType_type(result) == T_VOID) {
+      Printv(f_c_directors, "void ", fnname, NULL);
+    } else {
+      String *tm = gcCTypeForGoValue(n, result, fnname);
+      Printv(f_c_directors, tm, NULL);
+      Delete(tm);
+    }
+
+    Delete(fnname);
+
+    Printv(f_c_directors, ";\n", NULL);
+
+    if (SwigType_type(result) != T_VOID) {
+      String *r = NewString(Swig_cresult_name());
+      String *tm = gcCTypeForGoValue(n, result, r);
+      Wrapper_add_local(w, r, tm);
+      Delete(tm);
+      Delete(r);
+    }
+
+    String *args = NewString("");
+
+    p = parms;
+    while (p) {
+      while (checkAttribute(p, "tmap:directorin:numinputs", "0")) {
+	p = Getattr(p, "tmap:directorin:next");
+      }
+
+      String *pn = NewString("swig_");
+      Append(pn, Getattr(p, "lname"));
+      Setattr(p, "emit:directorinput", pn);
+
+      String *tm = gcCTypeForGoValue(p, Getattr(p, "type"), pn);
+      Wrapper_add_local(w, pn, tm);
+      Delete(tm);
+
+      tm = Getattr(p, "tmap:directorin");
+      if (!tm) {
+	Swig_warning(WARN_TYPEMAP_DIRECTORIN_UNDEF, input_file,
+		     line_number, "Unable to use type %s as director method argument\n", SwigType_str(Getattr(p, "type"), 0));
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$input", pn);
+	Replaceall(tm, "$owner", 0);
+	Printv(w->code, "  ", tm, "\n", NULL);
+	Delete(tm);
+
+	Printv(args, ", ", pn, NULL);
+      }
+
+      p = Getattr(p, "tmap:directorin:next");
+    }
+
+    Printv(w->code, "  ", NULL);
+    if (SwigType_type(result) != T_VOID) {
+      Printv(w->code, Swig_cresult_name(), " = ", NULL);
+    }
+    Printv(w->code, callback_name, "(go_val", args, ");\n", NULL);
+
+    /* Marshal outputs */
+    for (p = parms; p; ) {
+      String *tm;
+      if ((tm = Getattr(p, "tmap:directorargout"))) {
+	tm = Copy(tm);
+	Replaceall(tm, "$result", "jresult");
+	Replaceall(tm, "$input", Getattr(p, "emit:directorinput"));
+	Printv(w->code, tm, "\n", NULL);
+	Delete(tm);
+	p = Getattr(p, "tmap:directorargout:next");
+      } else {
+	p = nextSibling(p);
+      }
+    }
+
+    if (SwigType_type(result) != T_VOID) {
+      String *result_str = NewString("c_result");
+      String *tm = Swig_typemap_lookup("directorout", n, result_str, NULL);
+      if (!tm) {
+	Swig_warning(WARN_TYPEMAP_DIRECTOROUT_UNDEF, input_file, line_number,
+		     "Unable to use type %s as director method result\n", SwigType_str(result, 0));
+      } else {
+	tm = Copy(tm);
+	Replaceall(tm, "$input", Swig_cresult_name());
+	Replaceall(tm, "$result", "c_result");
+	Printv(w->code, "  ", tm, "\n", NULL);
+	String *retstr = SwigType_rcaststr(result, "c_result");
+	Printv(w->code, "  return ", retstr, ";\n", NULL);
+	Delete(retstr);
+	Delete(tm);
+      }
+      Delete(result_str);
+    }
+  }
+
+
+  /* ------------------------------------------------------------
+   * classDirectorEnd
+   *
+   * Complete support for a director class.
+   * ------------------------------------------------------------ */
+
+  int classDirectorEnd(Node *n) {
+    (void) n;
+
+    Printv(f_c_directors_h, " private:\n", NULL);
+    Printv(f_c_directors_h, "  intgo go_val;\n", NULL);
+    Printv(f_c_directors_h, "  Swig_memory *swig_mem;\n", NULL);
+    Printv(f_c_directors_h, "};\n\n", NULL);
+
+    class_name = NULL;
+    class_node = NULL;
+
+    Delete(class_receiver);
+    class_receiver = NULL;
+
+    Delete(class_methods);
+    class_methods = NULL;
+
+    return SWIG_OK;
+  }
+
+  /* ------------------------------------------------------------
+   * classDirectorDisown
+   *
+   * I think Go does not require a disown method.
+   * ------------------------------------------------------------ */
+
+  int classDirectorDisown(Node *n) {
+    (void) n;
+    return SWIG_OK;
+  }
+
+  /*----------------------------------------------------------------------
+   * buildThrow()
+   *
+   * Build and return a throw clause if needed.
+   *--------------------------------------------------------------------*/
+
+  String *buildThrow(Node *n) {
+    if (Getattr(n, "noexcept"))
+      return NewString("noexcept");
+    ParmList *throw_parm_list = Getattr(n, "throws");
+    if (!throw_parm_list && !Getattr(n, "throw"))
+      return NULL;
+    String *ret = NewString("throw(");
+    if (throw_parm_list) {
+      Swig_typemap_attach_parms("throws", throw_parm_list, NULL);
+    }
+    bool first = true;
+    for (Parm *p = throw_parm_list; p; p = nextSibling(p)) {
+      if (Getattr(p, "tmap:throws")) {
+	if (first) {
+	  first = false;
+	} else {
+	  Printv(ret, ", ", NULL);
+	}
+	String *s = SwigType_str(Getattr(p, "type"), 0);
+	Printv(ret, s, NULL);
+	Delete(s);
+      }
+    }
+    Printv(ret, ")", NULL);
+    return ret;
+  }
+
+  /*----------------------------------------------------------------------
+   * extraDirectorProtectedCPPMethodsRequired()
+   *
+   * We don't need to check upcall when calling methods.
+   *--------------------------------------------------------------------*/
+
+  bool extraDirectorProtectedCPPMethodsRequired() const {
+    return false;
+  }
+
+  /*----------------------------------------------------------------------
+   * makeDispatchFunction
+   *
+   * Make a dispatch function for an overloaded C++ function.  The
+   * receiver parameter is the receiver for a method, unless is_upcall
+   * is true.  If is_upcall is true, then the receiver parameter is
+   * the type of the first argument to the function.
+   *--------------------------------------------------------------------*/
+
+  int makeDispatchFunction(Node *n, String *go_name, String *receiver, bool is_static, SwigType *director_struct, bool is_upcall) {
+    bool is_director = director_struct ? true : false;
+
+    String *nodetype = Getattr(n, "nodeType");
+    bool is_constructor = Cmp(nodetype, "constructor") == 0;
+    bool is_destructor = Cmp(nodetype, "destructor") == 0;
+
+    bool can_use_receiver = (!is_constructor && !is_destructor && !is_upcall);
+
+    bool use_receiver = (!is_static && can_use_receiver);
+
+    bool add_to_interface = (interfaces && !is_constructor && !is_destructor && !is_static && !is_upcall);
+
+    List *dispatch = Swig_overload_rank(n, false);
+    int nfunc = Len(dispatch);
+
+    SwigType *all_result;
+    bool mismatch;
+    if (is_constructor) {
+      assert(!is_upcall);
+      if (!is_director) {
+	all_result = Copy(Getattr(class_node, "classtypeobj"));
+      } else {
+	all_result = Copy(director_struct);
+      }
+      mismatch = false;
+    } else {
+      all_result = NULL;
+      mismatch = false;
+      bool any_void = false;
+      for (int i = 0; i < nfunc; ++i) {
+	Node *nn = Getitem(dispatch, i);
+	Node *ni = Getattr(nn, "directorNode") ? Getattr(nn, "directorNode") : nn;
+	SwigType *result = Getattr(ni, "go:type");
+	assert(result);
+
+	if (SwigType_type(result) == T_VOID) {
+	  if (all_result) {
+	    mismatch = true;
+	  }
+	  any_void = true;
+	} else {
+	  if (any_void) {
+	    mismatch = true;
+	  } else if (!all_result) {
+	    all_result = Copy(result);
+	  } else if (Cmp(result, all_result) != 0) {
+	    mismatch = true;
+	  }
+	}
+      }
+      if (mismatch) {
+	Delete(all_result);
+	all_result = NULL;
+      } else if (all_result) {
+	;
+      } else {
+	all_result = NewString("void");
+      }
+    }
+
+    Printv(f_go_wrappers, "func ", NULL);
+
+    if (receiver && use_receiver) {
+      Printv(f_go_wrappers, "(p ", receiver, ") ", NULL);
+    }
+
+    Printv(f_go_wrappers, go_name, "(", NULL);
+    if (is_director && is_constructor) {
+      Printv(f_go_wrappers, "abi interface{}, ", NULL);
+      assert(!add_to_interface);
+    }
+    if (is_upcall) {
+      Printv(f_go_wrappers, "p *", receiver, ", ", NULL);
+      assert(!add_to_interface);
+    }
+    Printv(f_go_wrappers, "a ...interface{})", NULL);
+
+    if (add_to_interface) {
+      Printv(interfaces, "\t", go_name, "(a ...interface{})", NULL);
+    }
+
+    if (mismatch) {
+      Printv(f_go_wrappers, " interface{}", NULL);
+      if (add_to_interface) {
+	Printv(interfaces, " interface{}", NULL);
+      }
+    } else if (all_result && SwigType_type(all_result) != T_VOID) {
+      if (is_director && is_constructor) {
+	Printv(f_go_wrappers, " ", receiver, NULL);
+	if (add_to_interface) {
+	  Printv(interfaces, " ", receiver, NULL);
+	}
+      } else {
+	String *tm = goType(n, all_result);
+	Printv(f_go_wrappers, " ", tm, NULL);
+	if (add_to_interface) {
+	  Printv(interfaces, " ", tm, NULL);
+	}
+	Delete(tm);
+      }
+    }
+    Printv(f_go_wrappers, " {\n", NULL);
+    if (add_to_interface) {
+      Printv(interfaces, "\n", NULL);
+    }
+
+    Printv(f_go_wrappers, "\targc := len(a)\n", NULL);
+
+    for (int i = 0; i < nfunc; ++i) {
+      int fn = 0;
+      Node *nn = Getitem(dispatch, i);
+      Node *ni = Getattr(nn, "directorNode") ? Getattr(nn, "directorNode") : nn;
+      Parm *pi = Getattr(ni, "wrap:parms");
+
+      // If we are using a receiver, we want to ignore a leading self
+      // parameter.  Because of the way this is called, there may or
+      // may not be a self parameter at this point.
+      if (use_receiver && pi && Getattr(pi, "self")) {
+	pi = getParm(pi);
+	if (pi) {
+	  pi = nextParm(pi);
+	}
+      }
+
+      int num_required = emit_num_required(pi);
+      int num_arguments = emit_num_arguments(pi);
+      bool varargs = emit_isvarargs(pi) ? true : false;
+
+      if (varargs) {
+	Printf(f_go_wrappers, "\tif argc >= %d {\n", num_required);
+      } else {
+	if (num_required == num_arguments) {
+	  Printf(f_go_wrappers, "\tif argc == %d {\n", num_required);
+	} else {
+	  Printf(f_go_wrappers, "\tif argc >= %d && argc <= %d {\n", num_required, num_arguments);
+	}
+      }
+
+      // Build list of collisions with the same number of arguments.
+      List *coll = NewList();
+      for (int k = i + 1; k < nfunc; ++k) {
+	Node *nnk = Getitem(dispatch, k);
+	Node *nk = Getattr(nnk, "directorNode") ? Getattr(nnk, "directorNode") : nnk;
+	Parm *pk = Getattr(nk, "wrap:parms");
+	if (use_receiver && pk && Getattr(pk, "self")) {
+	  pk = getParm(pk);
+	  if (pk) {
+	    pk = nextParm(pk);
+	  }
+	}
+	int nrk = emit_num_required(pk);
+	int nak = emit_num_arguments(pk);
+	if ((nrk >= num_required && nrk <= num_arguments)
+	    || (nak >= num_required && nak <= num_arguments)
+	    || (nrk <= num_required && nak >= num_arguments)
+	    || (varargs && nrk >= num_required)) {
+	  Append(coll, nk);
+	}
+      }
+
+      int num_braces = 0;
+      if (Len(coll) > 0 && num_arguments > 0) {
+	int j = 0;
+	Parm *pj = pi;
+	while (pj) {
+	  pj = getParm(pj);
+	  if (!pj) {
+	    break;
+	  }
+
+	  // If all the overloads have the same type in this position,
+	  // we can omit the check.
+	  SwigType *tm = goOverloadType(pj, Getattr(pj, "type"));
+	  bool emitcheck = false;
+	  for (int k = 0; k < Len(coll) && !emitcheck; ++k) {
+	    Node *nk = Getitem(coll, k);
+	    Parm *pk = Getattr(nk, "wrap:parms");
+	    if (use_receiver && pk && Getattr(pk, "self")) {
+	      pk = getParm(pk);
+	      if (pk) {
+		pk = nextParm(pk);
+	      }
+	    }
+	    int nak = emit_num_arguments(pk);
+	    if (nak <= j)
+	      continue;
+	    int l = 0;
+	    Parm *pl = pk;
+	    while (pl && l <= j) {
+	      pl = getParm(pl);
+	      if (!pl) {
+		break;
+	      }
+	      if (l == j) {
+		SwigType *tml = goOverloadType(pl, Getattr(pl, "type"));
+		if (Cmp(tm, tml) != 0) {
+		  emitcheck = true;
+		}
+		Delete(tml);
+	      }
+	      pl = nextParm(pl);
+	      ++l;
+	    }
+	  }
+
+	  if (emitcheck) {
+	    if (j >= num_required) {
+	      Printf(f_go_wrappers, "\t\tif argc > %d {\n", j);
+	      ++num_braces;
+	    }
+
+	    fn = i + 1;
+	    Printf(f_go_wrappers, "\t\tif _, ok := a[%d].(%s); !ok {\n", j, tm);
+	    Printf(f_go_wrappers, "\t\t\tgoto check_%d\n", fn);
+	    Printv(f_go_wrappers, "\t\t}\n", NULL);
+	  }
+
+	  Delete(tm);
+
+	  pj = nextParm(pj);
+
+	  ++j;
+	}
+      }
+
+      for (; num_braces > 0; --num_braces) {
+	Printv(f_go_wrappers, "\t\t}\n", NULL);
+      }
+
+      // We may need to generate multiple calls if there are variable
+      // argument lists involved.  Build the start of the call.
+
+      String *start = NewString("");
+
+      SwigType *result = Getattr(ni, "go:type");
+
+      if (is_constructor) {
+	result = all_result;
+      } else if (is_destructor) {
+	result = NULL;
+      }
+
+      if (result && SwigType_type(result) != T_VOID && (!all_result || SwigType_type(all_result) != T_VOID)) {
+	Printv(start, "return ", NULL);
+      }
+
+      bool advance_parm = false;
+
+      if (receiver && use_receiver) {
+	Printv(start, "p.", go_name, NULL);
+      } else if (can_use_receiver && !isStatic(ni) && pi && Getattr(pi, "self")) {
+	// This is an overload of a static function and a non-static
+	// function.
+	assert(num_required > 0);
+	SwigType *tm = goWrapperType(pi, Getattr(pi, "type"), true);
+	String *nm = buildGoName(Getattr(ni, "sym:name"), false, isFriend(ni));
+	Printv(start, "a[0].(", tm, ").", nm, NULL);
+	Delete(nm);
+	Delete(tm);
+	advance_parm = true;
+      } else {
+	Printv(start, go_name, NULL);
+      }
+
+      Printv(start, Getattr(ni, "sym:overname"), "(", NULL);
+
+      bool need_comma = false;
+
+      if (is_director && is_constructor) {
+	Printv(start, "abi", NULL);
+	need_comma = true;
+      }
+      if (is_upcall) {
+	Printv(start, "p", NULL);
+	need_comma = true;
+      }
+      Parm *p = pi;
+      int pn = 0;
+      if (advance_parm) {
+	p = getParm(p);
+	if (p) {
+	  p = nextParm(p);
+	}
+	++pn;
+      }
+      while (pn < num_required) {
+	p = getParm(p);
+
+	if (need_comma) {
+	  Printv(start, ", ", NULL);
+	}
+
+	SwigType *tm = goType(p, Getattr(p, "type"));
+	Printf(start, "a[%d].(%s)", pn, tm);
+	Delete(tm);
+
+	need_comma = true;
+	++pn;
+	p = nextParm(p);
+      }
+
+      String *end = NULL;
+      if (!result || SwigType_type(result) == T_VOID || (all_result && SwigType_type(all_result) == T_VOID)) {
+	end = NewString("");
+	Printv(end, "return", NULL);
+	if (!all_result || SwigType_type(all_result) != T_VOID) {
+	  Printv(end, " 0", NULL);
+	}
+      }
+
+      if (num_required == num_arguments) {
+	Printv(f_go_wrappers, "\t\t", start, ")\n", NULL);
+	if (end) {
+	  Printv(f_go_wrappers, "\t\t", end, "\n", NULL);
+	}
+      } else {
+	Printv(f_go_wrappers, "\t\tswitch argc {\n", NULL);
+	for (int j = num_required; j <= num_arguments; ++j) {
+	  Printf(f_go_wrappers, "\t\tcase %d:\n", j);
+	  Printv(f_go_wrappers, "\t\t\t", start, NULL);
+	  bool nc = need_comma;
+	  for (int k = num_required; k < j; ++k) {
+	    if (nc) {
+	      Printv(f_go_wrappers, ", ", NULL);
+	    }
+	    Printf(f_go_wrappers, "a[%d]", k);
+	    nc = true;
+	  }
+	  Printv(f_go_wrappers, ")\n", NULL);
+	  if (end) {
+	    Printv(f_go_wrappers, "\t\t\t", end, "\n", NULL);
+	  }
+	}
+	Printv(f_go_wrappers, "\t\t}\n", NULL);
+      }
+
+      Printv(f_go_wrappers, "\t}\n", NULL);
+
+      if (fn != 0) {
+	Printf(f_go_wrappers, "check_%d:\n", fn);
+      }
+
+      Delete(coll);
+    }
+
+    Printv(f_go_wrappers, "\tpanic(\"No match for overloaded function call\")\n", NULL);
+    Printv(f_go_wrappers, "}\n\n", NULL);
+
+    Delete(all_result);
+    Delete(dispatch);
+
+    return SWIG_OK;
+  }
+
+  /* ----------------------------------------------------------------------
+   * checkFunctionVisibility()
+   *
+   * Return true if we should write out a function based on its
+   * visibility, false otherwise.
+   * ---------------------------------------------------------------------- */
+
+  bool checkFunctionVisibility(Node *n, Node *parent) {
+    // Write out a public function.
+    if (is_public(n))
+      return true;
+    // Don't write out a private function.
+    if (is_private(n))
+      return false;
+    // Write a protected function for a director class in
+    // dirprot_mode.
+    if (parent == NULL) {
+      return false;
+    }
+    if (dirprot_mode() && Swig_directorclass(parent))
+      return true;
+    // Otherwise don't write out a protected function.
+    return false;
+  }
+
+
+  /* ----------------------------------------------------------------------
+   * exportedName()
+   *
+   * Given a C/C++ name, return a name in Go which will be exported.
+   * If the first character is an upper case letter, this returns a
+   * copy of its argument.  If the first character is a lower case
+   * letter, this forces it to upper case.  Otherwise, this prepends
+   * 'X'.
+   * ---------------------------------------------------------------------- */
+
+  String *exportedName(String *name) {
+    String *copy = Copy(name);
+    char c = *Char(copy);
+    if (islower(c)) {
+      char l[2];
+      char u[2];
+      l[0] = c;
+      l[1] = '\0';
+      u[0] = toupper(c);
+      u[1] = '\0';
+      Replace(copy, l, u, DOH_REPLACE_FIRST);
+    } else if (!isalpha(c)) {
+      char l[2];
+      char u[3];
+      l[0] = c;
+      l[1] = '\0';
+      u[0] = 'X';
+      u[1] = c;
+      u[2] = '\0';
+      Replace(copy, l, u, DOH_REPLACE_FIRST);
+    }
+    String *ret = Swig_name_mangle(copy);
+    Delete(copy);
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * removeClassname()
+   *
+   * If the name starts with the current class name, followed by an
+   * underscore, remove it.  If there is no current class name, this
+   * simply returns a copy of the name.  This undoes Swig's way of
+   * recording the class name in a member name.
+   * ---------------------------------------------------------------------- */
+
+  String *removeClassname(String *name) {
+    String *copy = Copy(name);
+    if (class_name) {
+      char *p = Char(name);
+      if (Strncmp(name, class_name, Len(class_name)) == 0 && p[Len(class_name)] == '_') {
+	Replace(copy, class_name, "", DOH_REPLACE_FIRST);
+	Replace(copy, "_", "", DOH_REPLACE_FIRST);
+      }
+    }
+    return copy;
+  }
+
+  /* ----------------------------------------------------------------------
+   * buildGoName()
+   *
+   * Build the name to use for an ordinary function, variable, or
+   * whatever in Go.  The name argument is something like the sym:name
+   * attribute of the node.  If is_static is false, this could be a
+   * method, and the returned name will be the name of the
+   * method--i.e., it will not include the class name.
+   * ---------------------------------------------------------------------- */
+
+  String *buildGoName(String *name, bool is_static, bool is_friend) {
+    String *nw = NewString("");
+    if (is_static && !is_friend && class_name) {
+      String *c1 = exportedName(class_name);
+      Append(nw, c1);
+      Delete(c1);
+    }
+    String *c2 = removeClassname(name);
+    String *c3 = exportedName(c2);
+    Append(nw, c3);
+    Delete(c2);
+    Delete(c3);
+    String *ret = Swig_name_mangle(nw);
+    Delete(nw);
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * buildGoWrapperName()
+   *
+   * Build the name to use for a Go wrapper function.  This is a
+   * function called by the real Go function in order to convert C++
+   * classes from interfaces to pointers, and other such conversions
+   * between the Go type and the C++ type.
+   * ---------------------------------------------------------------------- */
+
+  String *buildGoWrapperName(String *name, String *overname) {
+    String *s1 = NewString("_swig_wrap_");
+    Append(s1, name);
+    String *s2 = Swig_name_mangle(s1);
+    Delete(s1);
+    if (overname) {
+      Append(s2, overname);
+    }
+    return s2;
+  }
+
+  /* ----------------------------------------------------------------------
+   * checkNameConflict()
+   *
+   * Check for a name conflict on the name we are going to use in Go.
+   * These conflicts are likely because of the enforced
+   * capitalization.  When we find one, issue a warning and return
+   * false.  If the name is OK, return true.
+   * ---------------------------------------------------------------------- */
+
+  bool checkNameConflict(String* name, Node* n, const_String_or_char_ptr scope) {
+    Node *lk = symbolLookup(name, scope);
+    if (lk) {
+      String *n1 = Getattr(n, "sym:name");
+      if (!n1) {
+	n1 = Getattr(n, "name");
+      }
+      String *n2 = Getattr(lk, "sym:name");
+      if (!n2) {
+	n2 = Getattr(lk, "name");
+      }
+      Swig_warning(WARN_GO_NAME_CONFLICT, input_file, line_number,
+		   "Ignoring '%s' due to Go name ('%s') conflict with '%s'\n",
+		   n1, name, n2);
+      return false;
+    }
+    bool r = addSymbol(name, n, scope) ? true : false;
+    assert(r);
+    (void)r;
+    return true;
+  }
+
+  /* ----------------------------------------------------------------------
+   * checkIgnoredParameters()
+   *
+   * If any of the parameters of this function, or the return type,
+   * are ignored due to a name conflict, give a warning and return
+   * false.
+   * ---------------------------------------------------------------------- */
+
+  bool checkIgnoredParameters(Node *n, String *go_name) {
+    ParmList *parms = Getattr(n, "parms");
+    if (parms) {
+      Wrapper *dummy = NewWrapper();
+      emit_attach_parmmaps(parms, dummy);
+      int parm_count = emit_num_arguments(parms);
+      Parm *p = parms;
+
+      for (int i = 0; i < parm_count; ++i) {
+	p = getParm(p);
+	if (!checkIgnoredType(n, go_name, Getattr(p, "type"))) {
+	  DelWrapper(dummy);
+	  return false;
+	}
+	p = nextParm(p);
+      }
+
+      DelWrapper(dummy);
+    }
+
+    if (!checkIgnoredType(n, go_name, Getattr(n, "type"))) {
+      return false;
+    }
+
+    return true;
+  }
+
+  /* ----------------------------------------------------------------------
+   * checkIgnoredType()
+   *
+   * If this type is being ignored due to a name conflict, give a
+   * warning and return false.
+   * ---------------------------------------------------------------------- */
+
+  bool checkIgnoredType(Node *n, String *go_name, SwigType *type) {
+    if (hasGoTypemap(n, type)) {
+      return true;
+    }
+
+    SwigType *t = SwigType_typedef_resolve_all(type);
+
+    bool ret = true;
+    bool is_conflict = false;
+    Node *e = Language::enumLookup(t);
+    if (e) {
+      if (GetFlag(e, "go:conflict")) {
+	is_conflict = true;
+      }
+    } else if (SwigType_issimple(t)) {
+      Node *cn = classLookup(t);
+      if (cn) {
+	if (GetFlag(cn, "go:conflict")) {
+	  is_conflict = true;
+	}
+      }
+    } else if (SwigType_ispointer(t) || SwigType_isarray(t) || SwigType_isqualifier(t) || SwigType_isreference(t)) {
+      SwigType *r = Copy(t);
+      if (SwigType_ispointer(r)) {
+	SwigType_del_pointer(r);
+      } else if (SwigType_isarray(r)) {
+	SwigType_del_array(r);
+      } else if (SwigType_isqualifier(r)) {
+	SwigType_del_qualifier(r);
+      } else {
+	SwigType_del_reference(r);
+      }
+
+      if (!checkIgnoredType(n, go_name, r)) {
+	ret = false;
+      }
+
+      Delete(r);
+    }
+
+    if (is_conflict) {
+      String *s = SwigType_str(t, NULL);
+      Swig_warning(WARN_GO_NAME_CONFLICT, input_file, line_number,
+		   "Ignoring '%s' (Go name '%s') due to Go name conflict for parameter or result type '%s'\n",
+		   Getattr(n, "name"), go_name, s);
+      Delete(s);
+      ret = false;
+    }
+
+    Delete(t);
+
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goType()
+   *
+   * Given a SWIG type, return a string for the type in Go.
+   * ---------------------------------------------------------------------- */
+
+  String *goType(Node *n, SwigType *type) {
+    return goTypeWithInfo(n, type, false, NULL);
+  }
+
+  /* ----------------------------------------------------------------------
+   * goImType()
+   *
+   * Given a SWIG type, return a string for the intermediate Go type
+   * to pass to C/C++.  This is like goType except that it looks for
+   * an imtype typemap entry first.
+   * ---------------------------------------------------------------------- */
+
+  String *goImType(Node *n, SwigType *type) {
+    return goTypeWithInfo(n, type, true, NULL);
+  }
+
+  /* ----------------------------------------------------------------------
+   * goTypeWithInfo()
+   *
+   * Like goType, but return some more information.
+   *
+   * If use_imtype is true, this look for a imtype typemap entry.
+   *
+   * If the p_is_interface parameter is not NULL, this sets
+   * *p_is_interface to indicate whether this type is going to be
+   * represented by a Go interface type.  These are cases where the Go
+   * code needs to make some adjustments when passing values back and
+   * forth with C/C++.
+   * ---------------------------------------------------------------------- */
+
+  String *goTypeWithInfo(Node *n, SwigType *type, bool use_imtype, bool *p_is_interface) {
+    if (p_is_interface) {
+      *p_is_interface = false;
+    }
+
+    String *ret = NULL;
+    if (use_imtype) {
+      if (n && Cmp(type, Getattr(n, "type")) == 0) {
+	if (Strcmp(Getattr(n, "nodeType"), "parm") == 0) {
+	  ret = Getattr(n, "tmap:imtype");
+	}
+	if (!ret) {
+	  ret = Swig_typemap_lookup("imtype", n, "", NULL);
+	}
+      } else {
+	Parm *p = NewParm(type, "goImType", n);
+	ret = Swig_typemap_lookup("imtype", p, "", NULL);
+	Delete(p);
+      }
+    }
+    if (!ret) {
+      if (n && Cmp(type, Getattr(n, "type")) == 0) {
+	if (Strcmp(Getattr(n, "nodeType"), "parm") == 0) {
+	  ret = Getattr(n, "tmap:gotype");
+	}
+	if (!ret) {
+	  ret = Swig_typemap_lookup("gotype", n, "", NULL);
+	}
+      } else {
+	Parm *p = NewParm(type, "goType", n);
+	ret = Swig_typemap_lookup("gotype", p, "", NULL);
+	Delete(p);
+      }
+    }
+
+    if (ret && Strstr(ret, "$gotypename") != 0) {
+      ret = NULL;
+    }
+
+    if (ret) {
+      return Copy(ret);
+    }
+
+    SwigType *t = SwigType_typedef_resolve_all(type);
+
+    if (SwigType_isenum(t)) {
+      Node *e = Language::enumLookup(t);
+      if (e) {
+	ret = goEnumName(e);
+      } else if (Strcmp(t, "enum ") == 0) {
+	ret = NewString("int");
+      } else {
+	// An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition) or an ignored enum
+	String *tt = Copy(t);
+	Replace(tt, "enum ", "", DOH_REPLACE_ANY);
+	ret = exportedName(tt);
+	Setattr(undefined_enum_types, t, ret);
+	Delete(tt);
+      }
+    } else if (SwigType_isfunctionpointer(t) || SwigType_isfunction(t)) {
+      ret = NewString("_swig_fnptr");
+    } else if (SwigType_ismemberpointer(t)) {
+      ret = NewString("_swig_memberptr");
+    } else if (SwigType_issimple(t)) {
+      Node *cn = classLookup(t);
+      if (cn) {
+	ret = Getattr(cn, "sym:name");
+	if (!ret) {
+	  ret = Getattr(cn, "name");
+	}
+	ret = exportedName(ret);
+
+	Node *cnmod = Getattr(cn, "module");
+	if (!cnmod || Strcmp(Getattr(cnmod, "name"), module) == 0) {
+	  Setattr(undefined_types, t, t);
+	} else {
+	  String *nw = NewString("");
+	  Printv(nw, getModuleName(Getattr(cnmod, "name")), ".", ret, NULL);
+	  Delete(ret);
+	  ret = nw;
+	}
+      } else {
+	// SWIG does not know about this type.
+	ret = exportedName(t);
+	Setattr(undefined_types, t, t);
+      }
+      if (p_is_interface) {
+	*p_is_interface = true;
+      }
+    } else if (SwigType_ispointer(t) || SwigType_isarray(t)) {
+      SwigType *r = Copy(t);
+      if (SwigType_ispointer(r)) {
+	SwigType_del_pointer(r);
+      } else {
+	SwigType_del_array(r);
+      }
+
+      if (SwigType_type(r) == T_VOID) {
+	ret = NewString("uintptr");
+      } else {
+	bool is_interface;
+	String *base = goTypeWithInfo(n, r, false, &is_interface);
+
+	// At the Go level, an unknown or class type is handled as an
+	// interface wrapping a pointer.  This means that if a
+	// function returns the C type X, we will be wrapping the C
+	// type X*.  In Go we will call that type X.  That means that
+	// if a C function expects X*, we can pass the Go type X.  And
+	// that means that when we see the C type X*, we should use
+	// the Go type X.
+
+	// The is_interface variable tells us this.  However, it will
+	// be true both for the case of X and for the case of X*.  If
+	// r is a pointer here, then we are looking at X**.  There is
+	// really no good way for us to handle that.
+	bool is_pointer_to_pointer = false;
+	if (is_interface) {
+	  SwigType *c = Copy(r);
+	  if (SwigType_isqualifier(c)) {
+	    SwigType_del_qualifier(c);
+	    if (SwigType_ispointer(c) || SwigType_isarray(c)) {
+	      is_pointer_to_pointer = true;
+	    }
+	  }
+	  Delete(c);
+	}
+
+	if (is_interface) {
+	  if (!is_pointer_to_pointer) {
+	    ret = base;
+	    if (p_is_interface) {
+	      *p_is_interface = true;
+	    }
+	  } else {
+	    ret = NewString("uintptr");
+	  }
+	} else {
+	  ret = NewString("*");
+	  Append(ret, base);
+	  Delete(base);
+	}
+      }
+
+      Delete(r);
+    } else if (SwigType_isreference(t)) {
+      SwigType *r = Copy(t);
+      SwigType_del_reference(r);
+
+      // If this is a const reference, and we are looking at a pointer
+      // to it, then we just use the pointer we already have.
+      bool add_pointer = true;
+      if (SwigType_isqualifier(r)) {
+	String *q = SwigType_parm(r);
+	if (Strcmp(q, "const") == 0) {
+	  SwigType *c = Copy(r);
+	  SwigType_del_qualifier(c);
+	  if (SwigType_ispointer(c)) {
+	    add_pointer = false;
+	  }
+	  Delete(c);
+	}
+      }
+      if (add_pointer) {
+	SwigType_add_pointer(r);
+      }
+      ret = goTypeWithInfo(n, r, false, p_is_interface);
+      Delete(r);
+    } else if (SwigType_isqualifier(t)) {
+      SwigType *r = Copy(t);
+      SwigType_del_qualifier(r);
+      ret = goTypeWithInfo(n, r, false, p_is_interface);
+      Delete(r);
+    } else if (SwigType_isvarargs(t)) {
+      ret = NewString("[]interface{}");
+    }
+
+    Delete(t);
+
+    if (!ret) {
+      Swig_warning(WARN_LANG_NATIVE_UNIMPL, input_file, line_number, "No Go typemap defined for %s\n", SwigType_str(type, 0));
+      ret = NewString("uintptr");
+    }
+
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * cgoTypeForGoValue()
+   *
+   * Given a SWIG type, return a string for the C type to use for the
+   * cgo wrapper code.  This always returns a simple identifier, since
+   * it is used in Go code as C.name.
+   *
+   * This sets *c_struct_type if the C type uses a struct where the Go
+   * type uses a simple type.  This is true for strings and slices.
+   * When this is true the Go code has to jump through unsafe hoops to
+   * pass the type checker.
+   * ---------------------------------------------------------------------- */
+
+  String *cgoTypeForGoValue(Node *n, SwigType *type, bool *c_struct_type) {
+    *c_struct_type = false;
+
+    bool is_interface;
+    String *go_type = goTypeWithInfo(n, type, true, &is_interface);
+    if (is_interface) {
+      Delete(go_type);
+      return NewString("uintptr_t");
+    }
+    if (Strcmp(go_type, "uintptr") == 0) {
+      Delete(go_type);
+      return NewString("uintptr_t");
+    }
+    if (((char*)Char(go_type))[0] == '*') {
+      // Treat all pointers as void*.  There is no meaningful type
+      // checking going on here anyhow, and that lets us avoid
+      // worrying about defining the base type of the pointer.
+      Delete(go_type);
+      return NewString("swig_voidp");
+    }
+
+    // Check for some Go types that are really pointers under the covers.
+    bool is_hidden_pointer = Strncmp(go_type, "func(", 5) == 0 || Strncmp(go_type, "map[", 4) == 0 || Strncmp(go_type, "chan ", 5) == 0;
+
+    Delete(go_type);
+
+    String *ct = Getattr(n, "emit:cgotype");
+    if (ct) {
+      *c_struct_type = Getattr(n, "emit:cgotypestruct") ? true : false;
+      return Copy(ct);
+    }
+
+    String *t = Copy(type);
+    if (SwigType_isarray(t) && Getattr(n, "tmap:gotype") == NULL) {
+      SwigType_del_array(t);
+      SwigType_add_pointer(t);
+    }
+
+    bool add_typedef = true;
+
+    static int count;
+    ++count;
+    ct = NewStringf("swig_type_%d", count);
+
+    String *gct = gcCTypeForGoValue(n, t, ct);
+    Delete(t);
+
+    if (Strncmp(gct, "_gostring_", 10) == 0 || Strncmp(gct, "_goslice_", 9) == 0) {
+      *c_struct_type = true;
+      Setattr(n, "emit:cgotypestruct", type);
+    } else {
+      char *p = Strstr(gct, ct);
+      if (p != NULL && p > (char*)Char(gct) && p[-1] == '*' && p[Len(ct)] == '\0') {
+	// Treat all pointers as void*.  See above.
+	Delete(ct);
+	--count;
+	ct = NewString("swig_voidp");
+	add_typedef = false;
+	if (is_hidden_pointer) {
+	  // A Go type that is really a pointer, like func, map, chan,
+	  // is being represented in C by a pointer.  This is fine,
+	  // but we have to memcpy the type rather than simply
+	  // converting it.
+	  *c_struct_type = true;
+	  Setattr(n, "emit:cgotypestruct", type);
+	}
+      }
+
+      if (Strncmp(gct, "bool ", 5) == 0) {
+	// Change the C++ type bool to the C type _Bool.
+	Replace(gct, "bool", "_Bool", DOH_REPLACE_FIRST);
+      }
+      if (Strncmp(gct, "intgo ", 6) == 0) {
+	// We #define intgo to swig_intgo for the cgo comment.
+	Replace(gct, "intgo", "swig_intgo", DOH_REPLACE_FIRST);
+      }
+      p = Strstr(gct, ct);
+      if (p != NULL && p > (char*)Char(gct) && p[-1] == ' ' && p[Len(ct)] == '\0') {
+	String *q = NewStringWithSize(gct, Len(gct) - Len(ct) - 1);
+	if (validIdentifier(q)) {
+	  // This is a simple type name, and we can use it directly.
+	  Delete(ct);
+	  --count;
+	  ct = q;
+	  add_typedef = false;
+	}
+      }
+    }
+    if (add_typedef) {
+      Printv(f_cgo_comment_typedefs, "typedef ", gct, ";\n", NULL);
+    }
+
+    Setattr(n, "emit:cgotype", ct);
+
+    Delete(gct);
+
+    return Copy(ct);
+  }
+
+  /* ----------------------------------------------------------------------
+   * goWrapperType()
+   *
+   * Given a type, return a string for the type to use for the wrapped
+   * Go function.  This function exists because for a C++ class we
+   * need to convert interface and reference types.
+   * ---------------------------------------------------------------------- */
+
+  String *goWrapperType(Node *n, SwigType *type, bool is_result) {
+    bool is_interface;
+    String *ret = goTypeWithInfo(n, type, true, &is_interface);
+
+    // If this is an interface, we want to pass the real type.
+    if (is_interface) {
+      Delete(ret);
+      if (!is_result) {
+	ret = NewString("uintptr");
+      } else {
+	SwigType *ty = SwigType_typedef_resolve_all(type);
+	while (true) {
+	  if (SwigType_ispointer(ty)) {
+	    SwigType_del_pointer(ty);
+	  } else if (SwigType_isarray(ty)) {
+	    SwigType_del_array(ty);
+	  } else if (SwigType_isreference(ty)) {
+	    SwigType_del_reference(ty);
+	  } else if (SwigType_isqualifier(ty)) {
+	    SwigType_del_qualifier(ty);
+	  } else {
+	    break;
+	  }
+	}
+	assert(SwigType_issimple(ty));
+	String *p = goCPointerType(ty, true);
+	Delete(ty);
+	ret = p;
+      }
+    }
+
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goOverloadType()
+   *
+   * Given a type, return the Go type to use when dispatching of
+   * overloaded functions.  This is normally just the usual Go type.
+   * However, for a C++ class, the usual Go type is an interface type.
+   * And if that interface type represents a C++ type that SWIG does
+   * not know about, then the interface type generated for any C++
+   * class will match that interface.  So for that case, we match on
+   * the underlying integer type.
+   *
+   * It has to work this way so that we can handle a derived type of a
+   * %ignore'd type.  It's unlikely that anybody will have a value of
+   * an undefined type, but we support it because it worked in the
+   * past.
+   * ---------------------------------------------------------------------- */
+
+  String *goOverloadType(Node *n, SwigType *type) {
+    SwigType *ty = SwigType_typedef_resolve_all(type);
+    while (true) {
+      if (SwigType_ispointer(ty)) {
+	SwigType_del_pointer(ty);
+      } else if (SwigType_isarray(ty)) {
+	SwigType_del_array(ty);
+      } else if (SwigType_isreference(ty)) {
+	SwigType_del_reference(ty);
+      } else if (SwigType_isqualifier(ty)) {
+	SwigType_del_qualifier(ty);
+      } else {
+	break;
+      }
+    }
+
+    String* go_type = goType(n, ty);
+
+    if (Getattr(undefined_types, ty) && !Getattr(defined_types, go_type)) {
+      Delete(go_type);
+      return goWrapperType(n, type, true);
+    }
+
+    Delete(go_type);
+    return goType(n, type);
+  }
+
+  /* ----------------------------------------------------------------------
+   * goCPointerType()
+   *
+   * Return the name of the Go type to use for the C pointer value.
+   * The regular C type is the name of an interface type which wraps a
+   * pointer whose name is returned by this function.
+   * ---------------------------------------------------------------------- */
+
+  String *goCPointerType(SwigType *type, bool add_to_hash) {
+    SwigType *ty = SwigType_typedef_resolve_all(type);
+    Node *cn = classLookup(ty);
+    String *ex;
+    String *ret;
+    if (!cn) {
+      if (add_to_hash) {
+	Setattr(undefined_types, ty, ty);
+      }
+      ret = NewString("Swigcptr");
+      ex = exportedName(ty);
+      Append(ret, ex);
+    } else {
+      String *cname = Getattr(cn, "sym:name");
+      if (!cname) {
+	cname = Getattr(cn, "name");
+      }
+      ex = exportedName(cname);
+      Node *cnmod = Getattr(cn, "module");
+      if (!cnmod || Strcmp(Getattr(cnmod, "name"), module) == 0) {
+	if (add_to_hash) {
+	  Setattr(undefined_types, ty, ty);
+	}
+	ret = NewString("Swigcptr");
+	Append(ret, ex);
+      } else {
+	ret = NewString("");
+	Printv(ret, getModuleName(Getattr(cnmod, "name")), ".Swigcptr", ex, NULL);
+      }
+    }
+    Delete(ty);
+    Delete(ex);
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * gcCTypeForGoValue()
+   *
+   * Given a type, return the C/C++ type which will be used to catch
+   * the value in Go.  This is the gc version.
+   * ---------------------------------------------------------------------- */
+
+  String *gcCTypeForGoValue(Node *n, SwigType *type, String *name) {
+    bool is_interface;
+    String *gt = goTypeWithInfo(n, type, true, &is_interface);
+
+    String *tail = NewString("");
+    SwigType *t = SwigType_typedef_resolve_all(type);
+    bool is_const_ref = false;
+    if (SwigType_isreference(t)) {
+      SwigType* tt = Copy(t);
+      SwigType_del_reference(tt);
+      if (SwigType_isqualifier(tt)) {
+	String* q = SwigType_parm(tt);
+	if (Strcmp(q, "const") == 0) {
+	  is_const_ref = true;
+	}
+      }
+      Delete(tt);
+    }
+    if (!is_const_ref) {
+      while (Strncmp(gt, "*", 1) == 0) {
+	Replace(gt, "*", "", DOH_REPLACE_FIRST);
+	Printv(tail, "*", NULL);
+      }
+    }
+    Delete(t);
+
+    bool is_string = Strcmp(gt, "string") == 0;
+    bool is_slice = Strncmp(gt, "[]", 2) == 0;
+    bool is_function = Strcmp(gt, "_swig_fnptr") == 0;
+    bool is_member = Strcmp(gt, "_swig_memberptr") == 0;
+    bool is_complex64 = Strcmp(gt, "complex64") == 0;
+    bool is_complex128 = Strcmp(gt, "complex128") == 0;
+    bool is_bool = false;
+    bool is_int8 = false;
+    bool is_int16 = false;
+    bool is_int = Strcmp(gt, "int") == 0 || Strcmp(gt, "uint") == 0;
+    bool is_int32 = false;
+    bool is_int64 = false;
+    bool is_float32 = false;
+    bool is_float64 = false;
+
+    bool has_typemap = (n != NULL && Getattr(n, "tmap:gotype") != NULL) || hasGoTypemap(n, type);
+    if (has_typemap) {
+      is_bool = Strcmp(gt, "bool") == 0;
+      is_int8 = Strcmp(gt, "int8") == 0 || Strcmp(gt, "uint8") == 0 || Strcmp(gt, "byte") == 0;
+      is_int16 = Strcmp(gt, "int16") == 0 || Strcmp(gt, "uint16") == 0;
+      is_int32 = Strcmp(gt, "int32") == 0 || Strcmp(gt, "uint32") == 0;
+      is_int64 = Strcmp(gt, "int64") == 0 || Strcmp(gt, "uint64") == 0;
+      is_float32 = Strcmp(gt, "float32") == 0;
+      is_float64 = Strcmp(gt, "float64") == 0;
+    }
+    Delete(gt);
+
+    String *ret;
+    if (is_string) {
+      // Note that we don't turn a reference to a string into a
+      // pointer to a string.  Strings are immutable anyhow.
+      ret = NewString("");
+      Printv(ret, "_gostring_", tail, " ", name, NULL);
+      Delete(tail);
+      return ret;
+    } else if (is_slice) {
+      // Slices are always passed as a _goslice_, whether or not references
+      // are involved.
+      ret = NewString("");
+      Printv(ret, "_goslice_", tail, " ", name, NULL);
+      Delete(tail);
+      return ret;
+    } else if (is_function || is_member) {
+      ret = NewString("");
+      Printv(ret, "void*", tail, " ", name, NULL);
+      Delete(tail);
+      return ret;
+    } else if (is_complex64) {
+      ret = NewString("_Complex float ");
+    } else if (is_complex128) {
+      ret = NewString("_Complex double ");
+    } else if (is_interface) {
+      SwigType *t = SwigType_typedef_resolve_all(type);
+      if (SwigType_ispointer(t)) {
+	SwigType_del_pointer(t);
+      }
+      if (SwigType_isreference(t)) {
+	SwigType_del_reference(t);
+      }
+      SwigType_add_pointer(t);
+      ret = SwigType_lstr(t, name);
+      Delete(t);
+      Delete(tail);
+      return ret;
+    } else {
+      SwigType *t = SwigType_typedef_resolve_all(type);
+      if (!has_typemap && SwigType_isreference(t)) {
+	// A const reference to a known type, or to a pointer, is not
+	// mapped to a pointer.
+	SwigType_del_reference(t);
+	if (SwigType_isqualifier(t)) {
+	  String *q = SwigType_parm(t);
+	  if (Strcmp(q, "const") == 0) {
+	    SwigType_del_qualifier(t);
+	    if (hasGoTypemap(n, t) || SwigType_ispointer(t)) {
+	      if (is_int) {
+		ret = NewString("intgo ");
+		Append(ret, name);
+	      } else if (is_int64) {
+		ret = NewString("long long ");
+		Append(ret, name);
+	      } else {
+		ret = SwigType_lstr(t, name);
+	      }
+	      Delete(q);
+	      Delete(t);
+	      Delete(tail);
+	      return ret;
+	    }
+	  }
+	  Delete(q);
+	}
+      }
+
+      if (Language::enumLookup(t) != NULL) {
+	is_int = true;
+      } else {
+	SwigType *tstripped = SwigType_strip_qualifiers(t);
+	if (SwigType_isenum(tstripped))
+	  is_int = true;
+	Delete(tstripped);
+      }
+
+      Delete(t);
+      if (is_bool) {
+	ret = NewString("bool ");
+      } else if (is_int8) {
+	ret = NewString("char ");
+      } else if (is_int16) {
+	ret = NewString("short ");
+      } else if (is_int) {
+	ret = NewString("intgo ");
+      } else if (is_int32) {
+	ret = NewString("int ");
+      } else if (is_int64) {
+	ret = NewString("long long ");
+      } else if (is_float32) {
+	ret = NewString("float ");
+      } else if (is_float64) {
+	ret = NewString("double ");
+      } else {
+	Delete(tail);
+	return SwigType_lstr(type, name);
+      }
+    }
+
+    Append(ret, tail);
+    if (!has_typemap && SwigType_isreference(type)) {
+      Append(ret, "* ");
+    }
+    Append(ret, name);
+    Delete(tail);
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goTypeIsInterface
+   *
+   * Return whether this C++ type is represented as an interface type
+   * in Go.  These types require adjustments in the Go code when
+   * passing them back and forth between Go and C++.
+   * ---------------------------------------------------------------------- */
+
+  bool goTypeIsInterface(Node *n, SwigType *type) {
+    bool is_interface;
+    Delete(goTypeWithInfo(n, type, false, &is_interface));
+    return is_interface;
+  }
+
+  /* ----------------------------------------------------------------------
+   * hasGoTypemap
+   *
+   * Return whether a type has a "gotype" typemap entry.
+   * ---------------------------------------------------------------------- */
+
+  bool hasGoTypemap(Node *n, SwigType *type) {
+    Parm *p = NewParm(type, "test", n);
+    SwigType *tm = Swig_typemap_lookup("gotype", p, "", NULL);
+    Delete(p);
+    if (tm && Strstr(tm, "$gotypename") == 0) {
+      Delete(tm);
+      return true;
+    }
+    Delete(tm);
+    return false;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goEnumName()
+   *
+   * Given an enum node, return a string to use for the enum type in Go.
+   * ---------------------------------------------------------------------- */
+
+  String *goEnumName(Node *n) {
+    String *ret = Getattr(n, "go:enumname");
+    if (ret) {
+      return Copy(ret);
+    }
+
+    if (Equal(Getattr(n, "type"), "enum ")) {
+      return NewString("int");
+    }
+
+    String *type = Getattr(n, "enumtype");
+    assert(type);
+    char *p = Char(type);
+    int len = Len(type);
+    String *s = NewString("");
+    bool capitalize = true;
+    for (int i = 0; i < len; ++i, ++p) {
+      if (*p == ':') {
+	++i;
+	++p;
+	assert(*p == ':');
+	capitalize = true;
+      } else if (capitalize) {
+	Putc(toupper(*p), s);
+	capitalize = false;
+      } else {
+	Putc(*p, s);
+      }
+    }
+
+    ret = Swig_name_mangle(s);
+    Delete(s);
+    return ret;
+  }
+
+
+  /* ----------------------------------------------------------------------
+   * getParm()
+   *
+   * Get the real parameter to use.
+   * ---------------------------------------------------------------------- */
+
+  Parm *getParm(Parm *p) {
+    while (p && checkAttribute(p, "tmap:in:numinputs", "0")) {
+      p = Getattr(p, "tmap:in:next");
+    }
+    return p;
+  }
+
+  /* ----------------------------------------------------------------------
+   * nextParm()
+   *
+   * Return the next parameter.
+   * ---------------------------------------------------------------------- */
+
+  Parm *nextParm(Parm *p) {
+    if (!p) {
+      return NULL;
+    } else if (Getattr(p, "tmap:in")) {
+      return Getattr(p, "tmap:in:next");
+    } else {
+      return nextSibling(p);
+    }
+  }
+
+  /* ----------------------------------------------------------------------
+   * isStatic
+   *
+   * Return whether a node should be considered as static rather than
+   * as a member.
+   * ---------------------------------------------------------------------- */
+
+  bool isStatic(Node *n) {
+    String *storage = Getattr(n, "storage");
+    return (storage && (Swig_storage_isstatic(n) || Strcmp(storage, "friend") == 0) && (!SmartPointer || !Getattr(n, "allocate:smartpointeraccess")));
+  }
+
+  /* ----------------------------------------------------------------------
+   * isFriend
+   *
+   * Return whether a node is a friend.
+   * ---------------------------------------------------------------------- */
+
+  bool isFriend(Node *n) {
+    String *storage = Getattr(n, "storage");
+    return storage && Strcmp(storage, "friend") == 0;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goGetattr
+   *
+   * Fetch an attribute from a node but return NULL if it is the empty string.
+   * ---------------------------------------------------------------------- */
+  Node *goGetattr(Node *n, const char *name) {
+    Node *ret = Getattr(n, name);
+    if (ret != NULL && Len(ret) == 0) {
+      ret = NULL;
+    }
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * goTypemapLookup
+   *
+   * Look up a typemap but return NULL if it is the empty string.
+   * ---------------------------------------------------------------------- */
+  String *goTypemapLookup(const char *name, Node *node, const char *lname) {
+    String *ret = Swig_typemap_lookup(name, node, lname, NULL);
+    if (ret != NULL && Len(ret) == 0) {
+      ret = NULL;
+    }
+    return ret;
+  }
+
+  /* ----------------------------------------------------------------------
+   * getModuleName
+   *
+   * Return the name of a module. This is different from module path:
+   * "some/path/to/module" -> "module".
+   * ---------------------------------------------------------------------- */
+
+  String *getModuleName(String *module_path) {
+    char *suffix = strrchr(Char(module_path), '/');
+    if (suffix == NULL) {
+      return module_path;
+    }
+    return Str(suffix + 1);
+  }
+
+};				/* class GO */
+
+/* -----------------------------------------------------------------------------
+ * swig_go()    - Instantiate module
+ * ----------------------------------------------------------------------------- */
+
+static Language *new_swig_go() {
+  return new GO();
+}
+extern "C" Language *swig_go(void) {
+  return new_swig_go();
+}
+
+/* -----------------------------------------------------------------------------
+ * Static member variables
+ * ----------------------------------------------------------------------------- */
+
+// Usage message.
+const char * const GO::usage = "\
+Go Options (available with -go)\n\
+     -cgo                - Generate cgo input files\n\
+     -no-cgo             - Do not generate cgo input files\n\
+     -gccgo              - Generate code for gccgo rather than gc\n\
+     -go-pkgpath <p>     - Like gccgo -fgo-pkgpath option\n\
+     -go-prefix <p>      - Like gccgo -fgo-prefix option\n\
+     -import-prefix <p>  - Prefix to add to %import directives\n\
+     -intgosize <s>      - Set size of Go int type--32 or 64 bits\n\
+     -package <name>     - Set name of the Go package to <name>\n\
+     -use-shlib          - Force use of a shared library\n\
+     -soname <name>      - Set shared library holding C/C++ code to <name>\n\
+\n";