Author: faisalv
Date: Sat Sep 30 12:34:27 2017
New Revision: 314600
URL: http://llvm.org/viewvc/llvm-project?rev=314600&view=rev
Log:
[NFC] Add assertion that we assume a valid macro argument index.
Modified:
cfe/trunk/lib/Lex/MacroArgs.cpp
Modified: cfe/trunk/lib/Lex/MacroArgs.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/MacroArgs.cpp?rev=314600&r1=314599&r2=314600&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/MacroArgs.cpp (original)
+++ cfe/trunk/lib/Lex/MacroArgs.cpp Sat Sep 30 12:34:27 2017
@@ -118,10 +118,13 @@ unsigned MacroArgs::getArgLength(const T
/// getUnexpArgument - Return the unexpanded tokens for the specified formal.
///
const Token *MacroArgs::getUnexpArgument(unsigned Arg) const {
+
+ assert(Arg < getNumMacroArguments() && "Invalid arg #");
// The unexpanded argument tokens start immediately after the MacroArgs
object
// in memory.
const Token *Start = getTrailingObjects<Token>();
const Token *Result = Start;
+
// Scan to find Arg.
for (; Arg; ++Result) {
assert(Result < Start+NumUnexpArgTokens && "Invalid arg #");
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