//===--- ParseHLSL.cpp - HLSL-specific parsing support --------------------===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

//

// This file implements the parsing logic for HLSL language features.

//

//===----------------------------------------------------------------------===//

#include "clang/Basic/AttributeCommonInfo.h"

#include "clang/Parse/ParseDiagnostic.h"

#include "clang/Parse/Parser.h"

using namespace clang;

void Parser::ParseHLSLSemantics(ParsedAttributes &Attrs,

                                SourceLocation *EndLoc) {

  assert(Tok.is(tok::colon) && "Not a HLSL Semantic");

  ConsumeToken();

  if (!Tok.is(tok::identifier)) {

    Diag(Tok.getLocation(), diag::err_expected_semantic_identifier);

    return;

  }

  IdentifierInfo *II = Tok.getIdentifierInfo();

  SourceLocation Loc = ConsumeToken();

  if (EndLoc)

    *EndLoc = Tok.getLocation();

  ParsedAttr::Kind AttrKind =

      ParsedAttr::getParsedKind(II, nullptr, ParsedAttr::AS_HLSLSemantic);

  if (AttrKind == ParsedAttr::UnknownAttribute) {

    Diag(Loc, diag::err_unknown_hlsl_semantic) << II;

    return;

  }

  Attrs.addNew(II, Loc, nullptr, SourceLocation(), nullptr, 0,

               ParsedAttr::AS_HLSLSemantic);

}