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PP: Partially address issue #738: handle premature end of argument when token pasting.

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This commit is contained in:
John Kessenich 2017-02-28 18:04:47 -07:00
parent 45c1b5b980
commit fb22b69fc6
4 changed files with 10 additions and 2 deletions
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5
Test/baseResults/tokenPaste.vert.out
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@ -5,7 +5,10 @@ ERROR: 0:40: '##' : unexpected location; end of replacement list
ERROR: 0:49: '##' : combined tokens are too long
ERROR: 0:52: '##' : not supported for these tokens
ERROR: 0:69: '##' : combined token is invalid
ERROR: 5 compilation errors. No code generated.
ERROR: 0:82: 'macro expansion' : Too few args in Macro rec
ERROR: 0:82: '##' : unexpected location
ERROR: 0:82: '##' : unexpected location
ERROR: 8 compilation errors. No code generated.
Shader version: 450

3
Test/tokenPaste.vert
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@ -77,3 +77,6 @@ uniform M_OUTER(argPaste);
#define M_NEST2(q) int q ## suff
#define M_OUTER2(p) M_NEST2(p ## 20)
uniform M_OUTER2(argPaste);
#define rec(x)##
rec(rec())

2
glslang/Include/revision.h
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@ -2,5 +2,5 @@
// For the version, it uses the latest git tag followed by the number of commits.
// For the date, it uses the current date (when then script is run).
#define GLSLANG_REVISION "Overload400-PrecQual.1858"
#define GLSLANG_REVISION "Overload400-PrecQual.1861"
#define GLSLANG_DATE "28-Feb-2017"

2
glslang/MachineIndependent/preprocessor/Pp.cpp
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@ -986,6 +986,8 @@ TPpContext::TokenStream* TPpContext::PrescanMacroArg(TokenStream& arg, TPpToken*
int token;
while ((token = scanToken(ppToken)) != tMarkerInput::marker && token != EndOfInput) {
token = tokenPaste(token, *ppToken);
if (token == tMarkerInput::marker || token == EndOfInput)
break;
if (token == PpAtomIdentifier && MacroExpand(ppToken, false, newLineOkay) != 0)
continue;
expandedArg->putToken(token, ppToken);