diff options
Diffstat (limited to 'lib/Lex/PPExpressions.cpp')
-rw-r--r-- | lib/Lex/PPExpressions.cpp | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/lib/Lex/PPExpressions.cpp b/lib/Lex/PPExpressions.cpp index ac01efad9b..e5ec2b99f5 100644 --- a/lib/Lex/PPExpressions.cpp +++ b/lib/Lex/PPExpressions.cpp @@ -1,9 +1,8 @@ //===--- PPExpressions.cpp - Preprocessor Expression Evaluation -----------===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// 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 // //===----------------------------------------------------------------------===// // @@ -152,8 +151,8 @@ static bool EvaluateDefined(PPValue &Result, Token &PeekTok, DefinedTracker &DT, return true; } // Consume the ). - Result.setEnd(PeekTok.getLocation()); PP.LexNonComment(PeekTok); + Result.setEnd(PeekTok.getLocation()); } else { // Consume identifier. Result.setEnd(PeekTok.getLocation()); @@ -842,14 +841,22 @@ Preprocessor::EvaluateDirectiveExpression(IdentifierInfo *&IfNDefMacro) { PPValue ResVal(BitWidth); DefinedTracker DT; + SourceLocation ExprStartLoc = SourceMgr.getExpansionLoc(Tok.getLocation()); if (EvaluateValue(ResVal, Tok, DT, true, *this)) { // Parse error, skip the rest of the macro line. + SourceRange ConditionRange = ExprStartLoc; if (Tok.isNot(tok::eod)) - DiscardUntilEndOfDirective(); + ConditionRange = DiscardUntilEndOfDirective(); // Restore 'DisableMacroExpansion'. DisableMacroExpansion = DisableMacroExpansionAtStartOfDirective; - return {false, DT.IncludedUndefinedIds}; + + // We cannot trust the source range from the value because there was a + // parse error. Track the range manually -- the end of the directive is the + // end of the condition range. + return {false, + DT.IncludedUndefinedIds, + {ExprStartLoc, ConditionRange.getEnd()}}; } // If we are at the end of the expression after just parsing a value, there @@ -863,7 +870,7 @@ Preprocessor::EvaluateDirectiveExpression(IdentifierInfo *&IfNDefMacro) { // Restore 'DisableMacroExpansion'. DisableMacroExpansion = DisableMacroExpansionAtStartOfDirective; - return {ResVal.Val != 0, DT.IncludedUndefinedIds}; + return {ResVal.Val != 0, DT.IncludedUndefinedIds, ResVal.getRange()}; } // Otherwise, we must have a binary operator (e.g. "#if 1 < 2"), so parse the @@ -876,7 +883,7 @@ Preprocessor::EvaluateDirectiveExpression(IdentifierInfo *&IfNDefMacro) { // Restore 'DisableMacroExpansion'. DisableMacroExpansion = DisableMacroExpansionAtStartOfDirective; - return {false, DT.IncludedUndefinedIds}; + return {false, DT.IncludedUndefinedIds, ResVal.getRange()}; } // If we aren't at the tok::eod token, something bad happened, like an extra @@ -888,5 +895,5 @@ Preprocessor::EvaluateDirectiveExpression(IdentifierInfo *&IfNDefMacro) { // Restore 'DisableMacroExpansion'. DisableMacroExpansion = DisableMacroExpansionAtStartOfDirective; - return {ResVal.Val != 0, DT.IncludedUndefinedIds}; + return {ResVal.Val != 0, DT.IncludedUndefinedIds, ResVal.getRange()}; } |