// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Author: jschorr@google.com (Joseph Schorr)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
//
// Utilities for printing and parsing protocol messages in a human-readable,
// text-based format.
#ifndef GOOGLE_PROTOBUF_TEXT_FORMAT_H__
#define GOOGLE_PROTOBUF_TEXT_FORMAT_H__
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/descriptor.h>
#include <google/protobuf/message.h>
#include <google/protobuf/message_lite.h>
#include <google/protobuf/port.h>
#include <google/protobuf/port_def.inc>
#ifdef SWIG
#error "You cannot SWIG proto headers"
#endif
namespace google {
namespace protobuf {
namespace io {
class ErrorCollector; // tokenizer.h
}
// This class implements protocol buffer text format, colloquially known as text
// proto. Printing and parsing protocol messages in text format is useful for
// debugging and human editing of messages.
//
// This class is really a namespace that contains only static methods.
class PROTOBUF_EXPORT TextFormat {
public:
// Outputs a textual representation of the given message to the given
// output stream. Returns false if printing fails.
static bool Print(const Message& message, io::ZeroCopyOutputStream* output);
// Print the fields in an UnknownFieldSet. They are printed by tag number
// only. Embedded messages are heuristically identified by attempting to
// parse them. Returns false if printing fails.
static bool PrintUnknownFields(const UnknownFieldSet& unknown_fields,
io::ZeroCopyOutputStream* output);
// Like Print(), but outputs directly to a string.
// Note: output will be cleared prior to printing, and will be left empty
// even if printing fails. Returns false if printing fails.
static bool PrintToString(const Message& message, TProtoStringType* output);
// Like PrintUnknownFields(), but outputs directly to a string. Returns
// false if printing fails.
static bool PrintUnknownFieldsToString(const UnknownFieldSet& unknown_fields,
TProtoStringType* output);
// Outputs a textual representation of the value of the field supplied on
// the message supplied. For non-repeated fields, an index of -1 must
// be supplied. Note that this method will print the default value for a
// field if it is not set.
static void PrintFieldValueToString(const Message& message,
const FieldDescriptor* field, int index,
TProtoStringType* output);
class PROTOBUF_EXPORT BaseTextGenerator {
public:
virtual ~BaseTextGenerator();
virtual void Indent() {}
virtual void Outdent() {}
// Returns the current indentation size in characters.
virtual size_t GetCurrentIndentationSize() const { return 0; }
// Print text to the output stream.
virtual void Print(const char* text, size_t size) = 0;
void PrintString(const TProtoStringType& str) { Print(str.data(), str.size()); }
template <size_t n>
void PrintLiteral(const char (&text)[n]) {
Print(text, n - 1); // n includes the terminating zero character.
}
};
// The default printer that converts scalar values from fields into their
// string representation.
// You can derive from this FastFieldValuePrinter if you want to have fields
// to be printed in a different way and register it at the Printer.
class PROTOBUF_EXPORT FastFieldValuePrinter {
public:
FastFieldValuePrinter();
virtual ~FastFieldValuePrinter();
virtual void PrintBool(bool val, BaseTextGenerator* generator) const;
virtual void PrintInt32(arc_i32 val, BaseTextGenerator* generator) const;
virtual void PrintUInt32(arc_ui32 val, BaseTextGenerator* generator) const;
virtual void PrintInt64(arc_i64 val, BaseTextGenerator* generator) const;
virtual void PrintUInt64(arc_ui64 val, BaseTextGenerator* generator) const;
virtual void PrintFloat(float val, BaseTextGenerator* generator) const;
virtual void PrintDouble(double val, BaseTextGenerator* generator) const;
virtual void PrintString(const TProtoStringType& val,
BaseTextGenerator* generator) const;
virtual void PrintBytes(const TProtoStringType& val,
BaseTextGenerator* generator) const;
virtual void PrintEnum(arc_i32 val, const TProtoStringType& name,
BaseTextGenerator* generator) const;
virtual void PrintFieldName(const Message& message, int field_index,
int field_count, const Reflection* reflection,
const FieldDescriptor* field,
BaseTextGenerator* generator) const;
virtual void PrintFieldName(const Message& message,
const Reflection* reflection,
const FieldDescriptor* field,
BaseTextGenerator* generator) const;
virtual void PrintMessageStart(const Message& message, int field_index,
int field_count, bool single_line_mode,
BaseTextGenerator* generator) const;
// Allows to override the logic on how to print the content of a message.
// Return false to use the default printing logic. Note that it is legal for
// this function to print something and then return false to use the default
// content printing (although at that point it would behave similarly to
// PrintMessageStart).
virtual bool PrintMessageContent(const Message& message, int field_index,
int field_count, bool single_line_mode,
BaseTextGenerator* generator) const;
virtual void PrintMessageEnd(const Message& message, int field_index,
int field_count, bool single_line_mode,
BaseTextGenerator* generator) const;
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FastFieldValuePrinter);
};
// Deprecated: please use FastFieldValuePrinter instead.
class PROTOBUF_EXPORT FieldValuePrinter {
public:
FieldValuePrinter();
virtual ~FieldValuePrinter();
virtual TProtoStringType PrintBool(bool val) const;
virtual TProtoStringType PrintInt32(arc_i32 val) const;
virtual TProtoStringType PrintUInt32(arc_ui32 val) const;
virtual TProtoStringType PrintInt64(arc_i64 val) const;
virtual TProtoStringType PrintUInt64(arc_ui64 val) const;
virtual TProtoStringType PrintFloat(float val) const;
virtual TProtoStringType PrintDouble(double val) const;
virtual TProtoStringType PrintString(const TProtoStringType& val) const;
virtual TProtoStringType PrintBytes(const TProtoStringType& val) const;
virtual TProtoStringType PrintEnum(arc_i32 val, const TProtoStringType& name) const;
virtual TProtoStringType PrintFieldName(const Message& message,
const Reflection* reflection,
const FieldDescriptor* field) const;
virtual TProtoStringType PrintMessageStart(const Message& message,
int field_index, int field_count,
bool single_line_mode) const;
virtual TProtoStringType PrintMessageEnd(const Message& message, int field_index,
int field_count,
bool single_line_mode) const;
private:
FastFieldValuePrinter delegate_;
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FieldValuePrinter);
};
class PROTOBUF_EXPORT MessagePrinter {
public:
MessagePrinter() {}
virtual ~MessagePrinter() {}
virtual void Print(const Message& message, bool single_line_mode,
BaseTextGenerator* generator) const = 0;
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MessagePrinter);
};
// Interface that Printers or Parsers can use to find extensions, or types
// referenced in Any messages.
class PROTOBUF_EXPORT Finder {
public:
virtual ~Finder();
// Try to find an extension of *message by fully-qualified field
// name. Returns nullptr if no extension is known for this name or number.
// The base implementation uses the extensions already known by the message.
virtual const FieldDescriptor* FindExtension(Message* message,
const TProtoStringType& name) const;
// Similar to FindExtension, but uses a Descriptor and the extension number
// instead of using a Message and the name when doing the look up.
virtual const FieldDescriptor* FindExtensionByNumber(
const Descriptor* descriptor, int number) const;
// Find the message type for an Any proto.
// Returns nullptr if no message is known for this name.
// The base implementation only accepts prefixes of type.googleprod.com/ or
// type.googleapis.com/, and searches the DescriptorPool of the parent
// message.
virtual const Descriptor* FindAnyType(const Message& message,
const TProtoStringType& prefix,
const TProtoStringType& name) const;
// Find the message factory for the given extension field. This can be used
// to generalize the Parser to add extension fields to a message in the same
// way as the "input" message for the Parser.
virtual MessageFactory* FindExtensionFactory(
const FieldDescriptor* field) const;
};
// Class for those users which require more fine-grained control over how
// a protobuffer message is printed out.
class PROTOBUF_EXPORT Printer {
public:
Printer();
// Like TextFormat::Print
bool Print(const Message& message, io::ZeroCopyOutputStream* output) const;
// Like TextFormat::PrintUnknownFields
bool PrintUnknownFields(const UnknownFieldSet& unknown_fields,
io::ZeroCopyOutputStream* output) const;
// Like TextFormat::PrintToString
bool PrintToString(const Message& message, TProtoStringType* output) const;
// Like TextFormat::PrintUnknownFieldsToString
bool PrintUnknownFieldsToString(const UnknownFieldSet& unknown_fields,
TProtoStringType* output) const;
// Like TextFormat::PrintFieldValueToString
void PrintFieldValueToString(const Message& message,
const FieldDescriptor* field, int index,
TProtoStringType* output) const;
// Adjust the initial indent level of all output. Each indent level is
// equal to two spaces.
void SetInitialIndentLevel(int indent_level) {
initial_indent_level_ = indent_level;
}
// If printing in single line mode, then the entire message will be output
// on a single line with no line breaks.
void SetSingleLineMode(bool single_line_mode) {
single_line_mode_ = single_line_mode;
}
bool IsInSingleLineMode() const { return single_line_mode_; }
// If use_field_number is true, uses field number instead of field name.
void SetUseFieldNumber(bool use_field_number) {
use_field_number_ = use_field_number;
}
// Set true to print repeated primitives in a format like:
// field_name: [1, 2, 3, 4]
// instead of printing each value on its own line. Short format applies
// only to primitive values -- i.e. everything except strings and
// sub-messages/groups.
void SetUseShortRepeatedPrimitives(bool use_short_repeated_primitives) {
use_short_repeated_primitives_ = use_short_repeated_primitives;
}
// Set true to output UTF-8 instead of ASCII. The only difference
// is that bytes >= 0x80 in string fields will not be escaped,
// because they are assumed to be part of UTF-8 multi-byte
// sequences. This will change the default FastFieldValuePrinter.
void SetUseUtf8StringEscaping(bool as_utf8);
// Set the default FastFieldValuePrinter that is used for all fields that
// don't have a field-specific printer registered.
// Takes ownership of the printer.
void SetDefaultFieldValuePrinter(const FastFieldValuePrinter* printer);
PROTOBUF_DEPRECATED_MSG("Please use FastFieldValuePrinter")
void SetDefaultFieldValuePrinter(const FieldValuePrinter* printer);
// Sets whether we want to hide unknown fields or not.
// Usually unknown fields are printed in a generic way that includes the
// tag number of the field instead of field name. However, sometimes it
// is useful to be able to print the message without unknown fields (e.g.
// for the python protobuf version to maintain consistency between its pure
// python and c++ implementations).
void SetHideUnknownFields(bool hide) { hide_unknown_fields_ = hide; }
// If print_message_fields_in_index_order is true, fields of a proto message
// will be printed using the order defined in source code instead of the
// field number, extensions will be printed at the end of the message
// and their relative order is determined by the extension number.
// By default, use the field number order.
void SetPrintMessageFieldsInIndexOrder(
bool print_message_fields_in_index_order) {
print_message_fields_in_index_order_ =
print_message_fields_in_index_order;
}
// If expand==true, expand google.protobuf.Any payloads. The output
// will be of form
// [type_url] { <value_printed_in_text> }
//
// If expand==false, print Any using the default printer. The output will
// look like
// type_url: "<type_url>" value: "serialized_content"
void SetExpandAny(bool expand) { expand_any_ = expand; }
// Set how parser finds message for Any payloads.
void SetFinder(const Finder* finder) { finder_ = finder; }
// If non-zero, we truncate all string fields that are longer than
// this threshold. This is useful when the proto message has very long
// strings, e.g., dump of encoded image file.
//
// NOTE(hfgong): Setting a non-zero value breaks round-trip safe
// property of TextFormat::Printer. That is, from the printed message, we
// cannot fully recover the original string field any more.
void SetTruncateStringFieldLongerThan(
const arc_i64 truncate_string_field_longer_than) {
truncate_string_field_longer_than_ = truncate_string_field_longer_than;
}
// Register a custom field-specific FastFieldValuePrinter for fields
// with a particular FieldDescriptor.
// Returns "true" if the registration succeeded, or "false", if there is
// already a printer for that FieldDescriptor.
// Takes ownership of the printer on successful registration.
bool RegisterFieldValuePrinter(const FieldDescriptor* field,
const FastFieldValuePrinter* printer);
PROTOBUF_DEPRECATED_MSG("Please use FastFieldValuePrinter")
bool RegisterFieldValuePrinter(const FieldDescriptor* field,
const FieldValuePrinter* printer);
// Register a custom message-specific MessagePrinter for messages with a
// particular Descriptor.
// Returns "true" if the registration succeeded, or "false" if there is
// already a printer for that Descriptor.
bool RegisterMessagePrinter(const Descriptor* descriptor,
const MessagePrinter* printer);
private:
friend TProtoStringType Message::DebugString() const;
friend TProtoStringType Message::ShortDebugString() const;
friend TProtoStringType Message::Utf8DebugString() const;
// Sets whether *DebugString should insert a silent marker.
void SetInsertSilentMarker(bool v) { insert_silent_marker_ = v; }
// Forward declaration of an internal class used to print the text
// output to the OutputStream (see text_format.cc for implementation).
class TextGenerator;
// Forward declaration of an internal class used to print field values for
// DebugString APIs (see text_format.cc for implementation).
class DebugStringFieldValuePrinter;
// Forward declaration of an internal class used to print UTF-8 escaped
// strings (see text_format.cc for implementation).
class FastFieldValuePrinterUtf8Escaping;
static const char* const kDoNotParse;
// Internal Print method, used for writing to the OutputStream via
// the TextGenerator class.
void Print(const Message& message, TextGenerator* generator) const;
// Print a single field.
void PrintField(const Message& message, const Reflection* reflection,
const FieldDescriptor* field,
TextGenerator* generator) const;
// Print a repeated primitive field in short form.
void PrintShortRepeatedField(const Message& message,
const Reflection* reflection,
const FieldDescriptor* field,
TextGenerator* generator) const;
// Print the name of a field -- i.e. everything that comes before the
// ':' for a single name/value pair.
void PrintFieldName(const Message& message, int field_index,
int field_count, const Reflection* reflection,
const FieldDescriptor* field,
TextGenerator* generator) const;
// Outputs a textual representation of the value of the field supplied on
// the message supplied or the default value if not set.
void PrintFieldValue(const Message& message, const Reflection* reflection,
const FieldDescriptor* field, int index,
TextGenerator* generator) const;
// Print the fields in an UnknownFieldSet. They are printed by tag number
// only. Embedded messages are heuristically identified by attempting to
// parse them (subject to the recursion budget).
void PrintUnknownFields(const UnknownFieldSet& unknown_fields,
TextGenerator* generator,
int recursion_budget) const;
bool PrintAny(const Message& message, TextGenerator* generator) const;
const FastFieldValuePrinter* GetFieldPrinter(
const FieldDescriptor* field) const {
auto it = custom_printers_.find(field);
return it == custom_printers_.end() ? default_field_value_printer_.get()
: it->second.get();
}
int initial_indent_level_;
bool single_line_mode_;
bool use_field_number_;
bool use_short_repeated_primitives_;
bool insert_silent_marker_;
bool hide_unknown_fields_;
bool print_message_fields_in_index_order_;
bool expand_any_;
arc_i64 truncate_string_field_longer_than_;
std::unique_ptr<const FastFieldValuePrinter> default_field_value_printer_;
typedef std::map<const FieldDescriptor*,
std::unique_ptr<const FastFieldValuePrinter>>
CustomPrinterMap;
CustomPrinterMap custom_printers_;
typedef std::map<const Descriptor*, std::unique_ptr<const MessagePrinter>>
CustomMessagePrinterMap;
CustomMessagePrinterMap custom_message_printers_;
const Finder* finder_;
};
// Parses a text-format protocol message from the given input stream to
// the given message object. This function parses the human-readable format
// written by Print(). Returns true on success. The message is cleared first,
// even if the function fails -- See Merge() to avoid this behavior.
//
// Example input: "user {\n id: 123 extra { gender: MALE language: 'en' }\n}"
//
// One use for this function is parsing handwritten strings in test code.
// Another use is to parse the output from google::protobuf::Message::DebugString()
// (or ShortDebugString()), because these functions output using
// google::protobuf::TextFormat::Print().
//
// If you would like to read a protocol buffer serialized in the
// (non-human-readable) binary wire format, see
// google::protobuf::MessageLite::ParseFromString().
static bool Parse(io::ZeroCopyInputStream* input, Message* output);
// Like Parse(), but reads directly from a string.
static bool ParseFromString(ConstStringParam input, Message* output);
// Like Parse(), but the data is merged into the given message, as if
// using Message::MergeFrom().
static bool Merge(io::ZeroCopyInputStream* input, Message* output);
// Like Merge(), but reads directly from a string.
static bool MergeFromString(ConstStringParam input, Message* output);
// Parse the given text as a single field value and store it into the
// given field of the given message. If the field is a repeated field,
// the new value will be added to the end
static bool ParseFieldValueFromString(const TProtoStringType& input,
const FieldDescriptor* field,
Message* message);
// A location in the parsed text.
struct ParseLocation {
int line;
int column;
ParseLocation() : line(-1), column(-1) {}
ParseLocation(int line_param, int column_param)
: line(line_param), column(column_param) {}
};
// A range of locations in the parsed text, including `start` and excluding
// `end`.
struct ParseLocationRange {
ParseLocation start;
ParseLocation end;
ParseLocationRange() : start(), end() {}
ParseLocationRange(ParseLocation start_param, ParseLocation end_param)
: start(start_param), end(end_param) {}
};
// Data structure which is populated with the locations of each field
// value parsed from the text.
class PROTOBUF_EXPORT ParseInfoTree {
public:
ParseInfoTree() = default;
ParseInfoTree(const ParseInfoTree&) = delete;
ParseInfoTree& operator=(const ParseInfoTree&) = delete;
// Returns the parse location range for index-th value of the field in
// the parsed text. If none exists, returns a location with start and end
// line -1. Index should be -1 for not-repeated fields.
ParseLocationRange GetLocationRange(const FieldDescriptor* field,
int index) const;
// Returns the starting parse location for index-th value of the field in
// the parsed text. If none exists, returns a location with line = -1. Index
// should be -1 for not-repeated fields.
ParseLocation GetLocation(const FieldDescriptor* field, int index) const {
return GetLocationRange(field, index).start;
}
// Returns the parse info tree for the given field, which must be a message
// type. The nested information tree is owned by the root tree and will be
// deleted when it is deleted.
ParseInfoTree* GetTreeForNested(const FieldDescriptor* field,
int index) const;
private:
// Allow the text format parser to record information into the tree.
friend class TextFormat;
// Records the starting and ending locations of a single value for a field.
void RecordLocation(const FieldDescriptor* field, ParseLocationRange range);
// Create and records a nested tree for a nested message field.
ParseInfoTree* CreateNested(const FieldDescriptor* field);
// Defines the map from the index-th field descriptor to its parse location.
typedef std::map<const FieldDescriptor*, std::vector<ParseLocationRange>>
LocationMap;
// Defines the map from the index-th field descriptor to the nested parse
// info tree.
typedef std::map<const FieldDescriptor*,
std::vector<std::unique_ptr<ParseInfoTree>>>
NestedMap;
LocationMap locations_;
NestedMap nested_;
};
// For more control over parsing, use this class.
class PROTOBUF_EXPORT Parser {
public:
Parser();
~Parser();
// Like TextFormat::Parse().
bool Parse(io::ZeroCopyInputStream* input, Message* output);
// Like TextFormat::ParseFromString().
bool ParseFromString(ConstStringParam input, Message* output);
// Like TextFormat::Merge().
bool Merge(io::ZeroCopyInputStream* input, Message* output);
// Like TextFormat::MergeFromString().
bool MergeFromString(ConstStringParam input, Message* output);
// Set where to report parse errors. If nullptr (the default), errors will
// be printed to stderr.
void RecordErrorsTo(io::ErrorCollector* error_collector) {
error_collector_ = error_collector;
}
// Set how parser finds extensions. If nullptr (the default), the
// parser will use the standard Reflection object associated with
// the message being parsed.
void SetFinder(const Finder* finder) { finder_ = finder; }
// Sets where location information about the parse will be written. If
// nullptr
// (the default), then no location will be written.
void WriteLocationsTo(ParseInfoTree* tree) { parse_info_tree_ = tree; }
// Normally parsing fails if, after parsing, output->IsInitialized()
// returns false. Call AllowPartialMessage(true) to skip this check.
void AllowPartialMessage(bool allow) { allow_partial_ = allow; }
// Allow field names to be matched case-insensitively.
// This is not advisable if there are fields that only differ in case, or
// if you want to enforce writing in the canonical form.
// This is 'false' by default.
void AllowCaseInsensitiveField(bool allow) {
allow_case_insensitive_field_ = allow;
}
// Like TextFormat::ParseFieldValueFromString
bool ParseFieldValueFromString(const TProtoStringType& input,
const FieldDescriptor* field,
Message* output);
// When an unknown extension is met, parsing will fail if this option is
// set to false (the default). If true, unknown extensions will be ignored
// and a warning message will be generated.
// Beware! Setting this option true may hide some errors (e.g. spelling
// error on extension name). This allows data loss; unlike binary format,
// text format cannot preserve unknown extensions. Avoid using this option
// if possible.
void AllowUnknownExtension(bool allow) { allow_unknown_extension_ = allow; }
// When an unknown field is met, parsing will fail if this option is set
// to false (the default). If true, unknown fields will be ignored and
// a warning message will be generated.
// Beware! Setting this option true may hide some errors (e.g. spelling
// error on field name). This allows data loss; unlike binary format, text
// format cannot preserve unknown fields. Avoid using this option
// if possible.
void AllowUnknownField(bool allow) { allow_unknown_field_ = allow; }
void AllowFieldNumber(bool allow) { allow_field_number_ = allow; }
// Sets maximum recursion depth which parser can use. This is effectively
// the maximum allowed nesting of proto messages.
void SetRecursionLimit(int limit) { recursion_limit_ = limit; }
private:
// Forward declaration of an internal class used to parse text
// representations (see text_format.cc for implementation).
class ParserImpl;
// Like TextFormat::Merge(). The provided implementation is used
// to do the parsing.
bool MergeUsingImpl(io::ZeroCopyInputStream* input, Message* output,
ParserImpl* parser_impl);
io::ErrorCollector* error_collector_;
const Finder* finder_;
ParseInfoTree* parse_info_tree_;
bool allow_partial_;
bool allow_case_insensitive_field_;
bool allow_unknown_field_;
bool allow_unknown_extension_;
bool allow_unknown_enum_;
bool allow_field_number_;
bool allow_relaxed_whitespace_;
bool allow_singular_overwrites_;
int recursion_limit_;
};
private:
// Hack: ParseInfoTree declares TextFormat as a friend which should extend
// the friendship to TextFormat::Parser::ParserImpl, but unfortunately some
// old compilers (e.g. GCC 3.4.6) don't implement this correctly. We provide
// helpers for ParserImpl to call methods of ParseInfoTree.
static inline void RecordLocation(ParseInfoTree* info_tree,
const FieldDescriptor* field,
ParseLocationRange location);
static inline ParseInfoTree* CreateNested(ParseInfoTree* info_tree,
const FieldDescriptor* field);
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(TextFormat);
};
inline void TextFormat::RecordLocation(ParseInfoTree* info_tree,
const FieldDescriptor* field,
ParseLocationRange location) {
info_tree->RecordLocation(field, location);
}
inline TextFormat::ParseInfoTree* TextFormat::CreateNested(
ParseInfoTree* info_tree, const FieldDescriptor* field) {
return info_tree->CreateNested(field);
}
} // namespace protobuf
} // namespace google
#include <google/protobuf/port_undef.inc>
#endif // GOOGLE_PROTOBUF_TEXT_FORMAT_H__