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[idl_parser, JSON] Disable parsing of JSON for incomplete schemes (#6493)

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This commit disable JSON parsing for an incomplete scheme if JSON object is embedded into one file with the scheme.
This should improve the quality of OSS-Fuzz inputs for the parser_fuzzer target.
This commit is contained in:
Vladimir Glavnyy
2021-03-02 04:40:58 +07:00
committed by GitHub
parent bd4e0b30a7
commit 5319dedb1a
1 changed files with 4 additions and 1 deletions
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5
src/idl_parser.cpp
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@@ -3189,6 +3189,9 @@ CheckedError Parser::ParseRoot(const char *source, const char **include_paths,
}
}
}
// Parse JSON object only if the scheme has been parsed.
if (token_ == '{') { ECHECK(DoParseJson()); }
EXPECT(kTokenEof);
return NoError();
}
@@ -3308,7 +3311,7 @@ CheckedError Parser::DoParse(const char *source, const char **include_paths,
} else if (IsIdent("namespace")) {
ECHECK(ParseNamespace());
} else if (token_ == '{') {
ECHECK(DoParseJson());
return NoError();
} else if (IsIdent("enum")) {
ECHECK(ParseEnum(false, nullptr));
} else if (IsIdent("union")) {