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Remove setjmp()/longjmp()

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This commit is contained in:
Milo Yip 2014-06-26 22:31:54 +08:00
parent c0f89f6f07
commit 74a24377a8
1 changed files with 22 additions and 23 deletions
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41
include/rapidjson/reader.h
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@ -21,12 +21,21 @@
#pragma warning(disable : 4127) // conditional expression is constant #pragma warning(disable : 4127) // conditional expression is constant
#endif #endif
#ifndef RAPIDJSON_PARSE_ERROR_NORETURN
#define RAPIDJSON_PARSE_ERROR_NORETURN(msg, offset) \
RAPIDJSON_MULTILINEMACRO_BEGIN \
if (!HasParseError()) {\
parseError_ = msg; \
errorOffset_ = offset; \
}\
RAPIDJSON_MULTILINEMACRO_END
#endif
#ifndef RAPIDJSON_PARSE_ERROR #ifndef RAPIDJSON_PARSE_ERROR
#define RAPIDJSON_PARSE_ERROR(msg, offset) \ #define RAPIDJSON_PARSE_ERROR(msg, offset) \
RAPIDJSON_MULTILINEMACRO_BEGIN \ RAPIDJSON_MULTILINEMACRO_BEGIN \
parseError_ = msg; \ RAPIDJSON_PARSE_ERROR_NORETURN(msg, offset); \
errorOffset_ = offset; \ return; \
longjmp(jmpbuf_, 1); \
RAPIDJSON_MULTILINEMACRO_END RAPIDJSON_MULTILINEMACRO_END
#endif #endif
@ -225,35 +234,23 @@ public:
parseError_ = 0; parseError_ = 0;
errorOffset_ = 0; errorOffset_ = 0;
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4611) // interaction between '_setjmp' and C++ object destruction is non-portable
#endif
if (setjmp(jmpbuf_)) {
#ifdef _MSC_VER
#pragma warning(pop)
#endif
stack_.Clear();
return false;
}
SkipWhitespace(is); SkipWhitespace(is);
if (is.Peek() == '\0') if (is.Peek() == '\0')
RAPIDJSON_PARSE_ERROR("Text only contains white space(s)", is.Tell()); RAPIDJSON_PARSE_ERROR_NORETURN("Text only contains white space(s)", is.Tell());
else { else {
switch (is.Peek()) { switch (is.Peek()) {
case '{': ParseObject<parseFlags>(is, handler); break; case '{': ParseObject<parseFlags>(is, handler); break;
case '[': ParseArray<parseFlags>(is, handler); break; case '[': ParseArray<parseFlags>(is, handler); break;
default: RAPIDJSON_PARSE_ERROR("Expect either an object or array at root", is.Tell()); default: RAPIDJSON_PARSE_ERROR_NORETURN("Expect either an object or array at root", is.Tell());
} }
SkipWhitespace(is); SkipWhitespace(is);
if (is.Peek() != '\0') if (is.Peek() != '\0')
RAPIDJSON_PARSE_ERROR("Nothing should follow the root object or array.", is.Tell()); RAPIDJSON_PARSE_ERROR_NORETURN("Nothing should follow the root object or array.", is.Tell());
} }
return true; return !HasParseError();
} }
bool HasParseError() const { return parseError_ != 0; } bool HasParseError() const { return parseError_ != 0; }
@ -375,8 +372,10 @@ private:
codepoint -= 'A' - 10; codepoint -= 'A' - 10;
else if (c >= 'a' && c <= 'f') else if (c >= 'a' && c <= 'f')
codepoint -= 'a' - 10; codepoint -= 'a' - 10;
else else {
RAPIDJSON_PARSE_ERROR("Incorrect hex digit after \\u escape", s.Tell() - 1); RAPIDJSON_PARSE_ERROR_NORETURN("Incorrect hex digit after \\u escape", s.Tell() - 1);
return 0;
}
} }
is = s; // Restore is is = s; // Restore is
return codepoint; return codepoint;