1 //===--- ParseHLSL.cpp - HLSL-specific parsing support --------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the parsing logic for HLSL language features.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "clang/Basic/AttributeCommonInfo.h"
14 #include "clang/Parse/ParseDiagnostic.h"
15 #include "clang/Parse/Parser.h"
16
17 using namespace clang;
18
ParseHLSLSemantics(ParsedAttributes & Attrs,SourceLocation * EndLoc)19 void Parser::ParseHLSLSemantics(ParsedAttributes &Attrs,
20 SourceLocation *EndLoc) {
21 assert(Tok.is(tok::colon) && "Not a HLSL Semantic");
22 ConsumeToken();
23
24 if (!Tok.is(tok::identifier)) {
25 Diag(Tok.getLocation(), diag::err_expected_semantic_identifier);
26 return;
27 }
28
29 IdentifierInfo *II = Tok.getIdentifierInfo();
30 SourceLocation Loc = ConsumeToken();
31 if (EndLoc)
32 *EndLoc = Tok.getLocation();
33 ParsedAttr::Kind AttrKind =
34 ParsedAttr::getParsedKind(II, nullptr, ParsedAttr::AS_HLSLSemantic);
35
36 if (AttrKind == ParsedAttr::UnknownAttribute) {
37 Diag(Loc, diag::err_unknown_hlsl_semantic) << II;
38 return;
39 }
40 Attrs.addNew(II, Loc, nullptr, SourceLocation(), nullptr, 0,
41 ParsedAttr::AS_HLSLSemantic);
42 }
43