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#pragma once
#include <string>
#include <vector>
#include "WAVM/Inline/BasicTypes.h"
#include "WAVM/Logging/Logging.h"
namespace WAVM { namespace IR {
struct Module;
}}
namespace WAVM { namespace WAST {
// A location in a text file.
struct TextFileLocus
{
Uptr lineStartOffset;
Uptr lineEndOffset;
U32 newlines;
U32 tabs;
U32 characters;
TextFileLocus() : newlines(0), tabs(0), characters(0) {}
U32 lineNumber() const { return newlines + 1; }
U32 column(U32 spacesPerTab = 4) const { return tabs * spacesPerTab + characters + 1; }
std::string describe(U32 spacesPerTab = 4) const
{
return std::to_string(lineNumber()) + ":" + std::to_string(column(spacesPerTab));
}
friend bool operator==(const TextFileLocus& a, const TextFileLocus& b)
{
return a.lineStartOffset == b.lineStartOffset && a.lineEndOffset == b.lineEndOffset
&& a.newlines == b.newlines && a.tabs == b.tabs && a.characters == b.characters;
}
friend bool operator!=(const TextFileLocus& a, const TextFileLocus& b) { return !(a == b); }
};
// A WAST parse error.
struct Error
{
TextFileLocus locus;
std::string message;
friend bool operator==(const Error& a, const Error& b)
{
return a.locus == b.locus && a.message == b.message;
}
friend bool operator!=(const Error& a, const Error& b) { return !(a == b); }
};
// Parse a module from a string. Returns true if it succeeds, and writes the module to
// outModule. If it fails, returns false and appends a list of errors to outErrors.
WAVM_API bool parseModule(const char* string,
Uptr stringLength,
IR::Module& outModule,
std::vector<Error>& outErrors);
WAVM_API void reportParseErrors(const char* filename,
const char* source,
const std::vector<Error>& parseErrors,
Log::Category outputCategory = Log::Category::error);
}}
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