forked from Mirrors/openclonk
Aul: Throw correct exception on parameter-less warning pragma
When no parameter followed the "#warning" pragma, because the end iterator would be located before the begin iterator, basic_string's constructor would throw std::length_error. Check for this case beforehand so we can throw the expected C4ParseError instead.master
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918c4139e8
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c8d22e321b
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@ -778,12 +778,9 @@ void C4AulParse::UnexpectedToken(const char * Expected)
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void C4AulParse::Parse_WarningPragma()
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{
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assert(SEqual2(TokenSPos, C4AUL_Warning));
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assert(std::isspace(TokenSPos[sizeof(C4AUL_Warning) - 1]));
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// Read parameters in to string buffer. The sizeof() includes the terminating \0, but
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// that's okay because we need to skip (at least) one whitespace character anyway.
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std::string line(TokenSPos + sizeof(C4AUL_Warning), SPos);
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// Read parameters in to string buffer.
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std::string line(TokenSPos + sizeof(C4AUL_Warning) - 1, SPos);
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auto end = line.end();
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auto cursor = std::find_if_not(begin(line), end, IsWhiteSpace);
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@ -88,6 +88,14 @@ TEST(AulSyntaxTest, ParseSyntaxErrors)
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EXPECT_THROW(ParseStatement("func Main() {}"), C4AulParseError);
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}
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TEST(AulSyntaxTest, PragmaWarningWithInsufficientData)
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{
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EXPECT_THROW(ParseScript("#warning"), C4AulParseError);
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EXPECT_THROW(ParseScript("#warning\n"), C4AulParseError);
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EXPECT_THROW(ParseScript("#warning "), C4AulParseError);
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EXPECT_THROW(ParseScript("#warning \n"), C4AulParseError);
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}
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using namespace ::aul::ast;
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TEST(AulSyntaxTest, ParseLiterals)
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{
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