diff options
Diffstat (limited to 'source/slang/slang-preprocessor.cpp')
| -rw-r--r-- | source/slang/slang-preprocessor.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/source/slang/slang-preprocessor.cpp b/source/slang/slang-preprocessor.cpp index b0986f64c..702259381 100644 --- a/source/slang/slang-preprocessor.cpp +++ b/source/slang/slang-preprocessor.cpp @@ -2570,7 +2570,40 @@ static PreprocessorExpressionValue ParseAndEvaluateUnaryExpression(PreprocessorD return LookupMacro(context, name) != NULL; } + else if (token.getContent() == "__has_feature") + { + // handle `defined(someName)` + + // Possibly parse a `(` + Token leftParen; + if (PeekRawTokenType(context) == TokenType::LParent) + { + leftParen = AdvanceRawToken(context); + } + // Expect an identifier + Token nameToken; + if (!ExpectRaw(context, TokenType::Identifier, Diagnostics::expectedTokenInDefinedExpression, &nameToken)) + { + return 0; + } + + // If we saw an opening `(`, then expect one to close + if (leftParen.type != TokenType::Unknown) + { + if (!ExpectRaw(context, TokenType::RParent, Diagnostics::expectedTokenInDefinedExpression)) + { + GetSink(context)->diagnose(leftParen.loc, Diagnostics::seeOpeningToken, leftParen); + return 0; + } + } + + if (nameToken.getContent() == "hlsl_vk_buffer_pointer") + { + return 1; + } + return 0; + } // An identifier here means it was not defined as a macro (or // it is defined, but as a function-like macro. These should // just evaluate to zero (possibly with a warning) |