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PP: Support operator creation with token pasting.

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This commit is contained in:
John Kessenich 2016-12-21 12:32:56 -07:00
parent 0c4b7c931a
commit 224b1f733b
4 changed files with 118 additions and 8 deletions
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60
Test/baseResults/tokenPaste.vert.out
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@ -3,8 +3,9 @@ Warning, version 450 is not yet complete; most version-specific features are pre
ERROR: 0:38: '##' : unexpected location
ERROR: 0:40: '##' : unexpected location; end of replacement list
ERROR: 0:49: '##' : combined tokens are too long
ERROR: 0:52: '##' : only supported for preprocessing identifiers
ERROR: 4 compilation errors. No code generated.
ERROR: 0:52: '##' : not supported for these tokens
ERROR: 0:69: '##' : combined token is invalid
ERROR: 5 compilation errors. No code generated.
Shader version: 450
@ -14,6 +15,35 @@ ERROR: node is still EOpNull!
0:52 'a' (global int)
0:52 Constant:
0:52 11 (const int)
0:58 Sequence
0:58 move second child to first child (temp int)
0:58 'cop' (global int)
0:58 Constant:
0:58 160 (const int)
0:59 Sequence
0:59 move second child to first child (temp bool)
0:59 'dop' (global bool)
0:59 Constant:
0:59 true (const bool)
0:63 Function Definition: ShouldntExpandToThis( (global void)
0:63 Function Parameters:
0:65 Sequence
0:65 Sequence
0:65 move second child to first child (temp int)
0:65 'e' (temp int)
0:65 Constant:
0:65 16 (const int)
0:66 right shift second child into first child (temp int)
0:66 'e' (temp int)
0:66 Constant:
0:66 2 (const int)
0:69 Sequence
0:69 move second child to first child (temp bool)
0:69 'f' (temp bool)
0:69 Compare Greater Than (temp bool)
0:69 'e' (temp int)
0:69 Constant:
0:69 5 (const int)
0:? Linker Objects
0:? 'SecondExpansion' (global int)
0:? 'PostPasteExpansion' (global int)
@ -25,8 +55,14 @@ ERROR: node is still EOpNull!
0:? 'dc1' (global float)
0:? 'dc2' (global float)
0:? 'foo875' (uniform float)
0:? 'ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123451234' (global float)
0:? 'ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345' (global float)
0:? 'a' (global int)
0:? 'aop' (const int)
0:? 10 (const int)
0:? 'bop' (const int)
0:? 4 (const int)
0:? 'cop' (global int)
0:? 'dop' (global bool)
0:? 'gl_VertexID' (gl_VertexId int VertexId)
0:? 'gl_InstanceID' (gl_InstanceId int InstanceId)
@ -42,6 +78,16 @@ ERROR: node is still EOpNull!
0:52 'a' (global int)
0:52 Constant:
0:52 11 (const int)
0:58 Sequence
0:58 move second child to first child (temp int)
0:58 'cop' (global int)
0:58 Constant:
0:58 160 (const int)
0:59 Sequence
0:59 move second child to first child (temp bool)
0:59 'dop' (global bool)
0:59 Constant:
0:59 true (const bool)
0:? Linker Objects
0:? 'SecondExpansion' (global int)
0:? 'PostPasteExpansion' (global int)
@ -53,8 +99,14 @@ ERROR: node is still EOpNull!
0:? 'dc1' (global float)
0:? 'dc2' (global float)
0:? 'foo875' (uniform float)
0:? 'ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123451234' (global float)
0:? 'ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345' (global float)
0:? 'a' (global int)
0:? 'aop' (const int)
0:? 10 (const int)
0:? 'bop' (const int)
0:? 4 (const int)
0:? 'cop' (global int)
0:? 'dop' (global bool)
0:? 'gl_VertexID' (gl_VertexId int VertexId)
0:? 'gl_InstanceID' (gl_InstanceId int InstanceId)

18
Test/tokenPaste.vert
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@ -50,3 +50,21 @@ float simplePaste(ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF01234567
// non-identifiers
int a = simplePaste(11,12);
// operators
#define MAKE_OP(L, R) L ## R
const int aop = 10;
const int bop = 4;
int cop = aop MAKE_OP(<, <) bop;
bool dop = aop MAKE_OP(!,=) bop;
#define MAKE_OP3(L, M, R) L ## M ## R
void foo()
{
int e = 16;
e MAKE_OP3(>,>,=) 2;
// recovery from bad op
bool f = e MAKE_OP(>,!) 5;
}

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.1719"
#define GLSLANG_REVISION "Overload400-PrecQual.1720"
#define GLSLANG_DATE "21-Dec-2016"

46
glslang/MachineIndependent/preprocessor/PpScanner.cpp
View File

@ -813,12 +813,52 @@ int TPpContext::tokenPaste(int token, TPpToken& ppToken)
// get the token after the ##
token = scanToken(&pastedPpToken);
// get the token text
switch (resultToken) {
case PpAtomIdentifier:
// already have the correct text in token.names
break;
case '=':
case '!':
case '-':
case '~':
case '+':
case '*':
case '/':
case '%':
case '<':
case '>':
case '|':
case '^':
case '&':
case PpAtomRight:
case PpAtomLeft:
case PpAtomAnd:
case PpAtomOr:
case PpAtomXor:
strcpy(ppToken.name, GetAtomString(resultToken));
strcpy(pastedPpToken.name, GetAtomString(token));
break;
default:
parseContext.ppError(ppToken.loc, "not supported for these tokens", "##", "");
return resultToken;
}
// combine the tokens
if (resultToken != PpAtomIdentifier)
parseContext.ppError(ppToken.loc, "only supported for preprocessing identifiers", "##", "");
if (strlen(ppToken.name) + strlen(pastedPpToken.name) > MaxTokenLength)
if (strlen(ppToken.name) + strlen(pastedPpToken.name) > MaxTokenLength) {
parseContext.ppError(ppToken.loc, "combined tokens are too long", "##", "");
return resultToken;
}
strncat(ppToken.name, pastedPpToken.name, MaxTokenLength - strlen(ppToken.name));
// correct the kind of token we are making, if needed (identifiers stay identifiers)
if (resultToken != PpAtomIdentifier) {
int newToken = LookUpString(ppToken.name);
if (newToken > 0)
resultToken = newToken;
else
parseContext.ppError(ppToken.loc, "combined token is invalid", "##", "");
}
}
return resultToken;