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HLSL: Move to correct parsing of annotations, improving all annotations and recent string grammar.

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This commit is contained in:
John Kessenich 2016-09-20 13:22:58 -06:00
parent 2572b19e94
commit a1e2d4952e
8 changed files with 40 additions and 56 deletions
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2
Test/hlsl.string.frag
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@ -1,7 +1,7 @@
string s = "string1";
string e = "";
string bracket < string a = "nested" ; > ;
string brackets < string b = "nest1" ; string c = "nest2" ; string d = "nest3" ; > ;
string brackets < string b = "nest1" ; string c = "nest2" ; float test [ 4 ] = { 1.0 , 1.0 , 1.0 , 1.0 } ; vector<float, 3> a = float3(2.0); > ;
string brackete1 < > ;
string brackete2 < ; > ;
string brackete3 < ; ; > ;

4
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.1502"
#define GLSLANG_DATE "19-Sep-2016"
#define GLSLANG_REVISION "Overload400-PrecQual.1503"
#define GLSLANG_DATE "20-Sep-2016"

60
hlsl/hlslGrammar.cpp
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@ -721,36 +721,16 @@ bool HlslGrammar::acceptMatrixTemplateType(TType& type)
return true;
}
// string_template_type
// : STRING
// | STRING identifier LEFT_ANGLE declaration SEMI_COLON ... declaration SEMICOLON RIGHT_ANGLE
// annotations
// : LEFT_ANGLE declaration SEMI_COLON ... declaration SEMICOLON RIGHT_ANGLE
//
bool HlslGrammar::acceptStringTemplateType(TType& type)
bool HlslGrammar::acceptAnnotations(TQualifier&)
{
// STRING
if (! acceptTokenClass(EHTokString))
if (! acceptTokenClass(EHTokLeftAngle))
return false;
// no matter what happens next, we recognized a string type
new(&type) TType(EbtString);
// identifier LEFT_ANGLE, or not?
if (! acceptTokenClass(EHTokIdentifier)) {
expected("identifier following 'string'");
return false;
}
if (! peekTokenClass(EHTokLeftAngle)) {
// then it must be the non-template version, back up and let
// normal declaration code handle it
// recede the identifier
recedeToken();
return true;
}
// move past the LEFT_ANGLE
advanceToken();
// note that we are nesting a name space
parseContext.nestAnnotations();
// declaration SEMI_COLON ... declaration SEMICOLON RIGHT_ANGLE
do {
@ -759,15 +739,18 @@ bool HlslGrammar::acceptStringTemplateType(TType& type)
;
if (acceptTokenClass(EHTokRightAngle))
return true;
break;
// declaration
TIntermNode* node;
if (! acceptDeclaration(node)) {
expected("declaration in string list");
expected("declaration in annotation");
return false;
}
} while (true);
parseContext.unnestAnnotations();
return true;
}
// sampler_type
@ -942,10 +925,6 @@ bool HlslGrammar::acceptType(TType& type)
return acceptMatrixTemplateType(type);
break;
case EHTokString:
return acceptStringTemplateType(type);
break;
case EHTokSampler: // fall through
case EHTokSampler1d: // ...
case EHTokSampler2d: // ...
@ -991,6 +970,10 @@ bool HlslGrammar::acceptType(TType& type)
new(&type) TType(EbtVoid);
break;
case EHTokString:
new(&type) TType(EbtString);
break;
case EHTokFloat:
new(&type) TType(EbtFloat);
break;
@ -2740,16 +2723,9 @@ void HlslGrammar::acceptPostDecls(TQualifier& qualifier)
// semantic, in idToken.string
parseContext.handleSemantic(idToken.loc, qualifier, *idToken.string);
}
} else if (acceptTokenClass(EHTokLeftAngle)) {
// TODO: process annotations, just accepting them for now
do {
if (peekTokenClass(EHTokNone))
return;
if (acceptTokenClass(EHTokRightAngle))
break;
advanceToken();
} while (true);
} else
} else if (peekTokenClass(EHTokLeftAngle))
acceptAnnotations(qualifier);
else
break;
} while (true);

2
hlsl/hlslGrammar.h
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@ -73,7 +73,7 @@ namespace glslang {
bool acceptTemplateType(TBasicType&);
bool acceptVectorTemplateType(TType&);
bool acceptMatrixTemplateType(TType&);
bool acceptStringTemplateType(TType&);
bool acceptAnnotations(TQualifier&);
bool acceptSamplerType(TType&);
bool acceptTextureType(TType&);
bool acceptStruct(TType&);

11
hlsl/hlslParseHelper.cpp
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@ -52,7 +52,8 @@ HlslParseContext::HlslParseContext(TSymbolTable& symbolTable, TIntermediate& int
int version, EProfile profile, const SpvVersion& spvVersion, EShLanguage language, TInfoSink& infoSink,
bool forwardCompatible, EShMessages messages) :
TParseContextBase(symbolTable, interm, version, profile, spvVersion, language, infoSink, forwardCompatible, messages),
contextPragma(true, false), loopNestingLevel(0), structNestingLevel(0), controlFlowNestingLevel(0),
contextPragma(true, false),
loopNestingLevel(0), annotationNestingLevel(0), structNestingLevel(0), controlFlowNestingLevel(0),
postMainReturn(false),
limits(resources.limits),
entryPointOutput(nullptr),
@ -4059,8 +4060,12 @@ void HlslParseContext::declareTypedef(const TSourceLoc& loc, TString& identifier
//
TIntermNode* HlslParseContext::declareVariable(const TSourceLoc& loc, TString& identifier, const TType& parseType, TArraySizes* arraySizes, TIntermTyped* initializer)
{
// string identifiers can nest inside < ... >, apparently with their own namespace,
// which is not implemented
// TODO: things scoped within an annotation need their own name space;
// haven't done that yet
if (annotationNestingLevel > 0)
return nullptr;
// TODO: strings are not yet handled
if (parseType.getBasicType() == EbtString)
return nullptr;

11
hlsl/hlslParseHelper.h
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@ -159,10 +159,12 @@ public:
void updateImplicitArraySize(const TSourceLoc&, TIntermNode*, int index);
void nestLooping() { ++loopNestingLevel; }
void unnestLooping() { --loopNestingLevel; }
void pushScope() { symbolTable.push(); }
void popScope() { symbolTable.pop(0); }
void nestLooping() { ++loopNestingLevel; }
void unnestLooping() { --loopNestingLevel; }
void nestAnnotations() { ++annotationNestingLevel; }
void unnestAnnotations() { --annotationNestingLevel; }
void pushScope() { symbolTable.push(); }
void popScope() { symbolTable.pop(0); }
void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
void popSwitchSequence() { switchSequenceStack.pop_back(); }
@ -182,6 +184,7 @@ protected:
// Current state of parsing
struct TPragma contextPragma;
int loopNestingLevel; // 0 if outside all loops
int annotationNestingLevel; // 0 if outside all annotations
int structNestingLevel; // 0 if outside blocks and structures
int controlFlowNestingLevel; // 0 if outside all flow control
TList<TIntermSequence*> switchSequenceStack; // case, node, case, case, node, ...; ensure only one node between cases; stack of them for nesting

4
hlsl/hlslScanContext.cpp
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@ -122,9 +122,9 @@ void HlslScanContext::fillInKeywordMap()
(*KeywordMap)["Buffer"] = EHTokBuffer;
(*KeywordMap)["vector"] = EHTokVector;
(*KeywordMap)["matrix"] = EHTokMatrix;
(*KeywordMap)["string"] = EHTokString;
(*KeywordMap)["void"] = EHTokVoid;
(*KeywordMap)["string"] = EHTokString;
(*KeywordMap)["bool"] = EHTokBool;
(*KeywordMap)["int"] = EHTokInt;
(*KeywordMap)["uint"] = EHTokUint;
@ -472,11 +472,11 @@ EHlslTokenClass HlslScanContext::tokenizeIdentifier()
case EHTokBuffer:
case EHTokVector:
case EHTokMatrix:
case EHTokString:
return keyword;
// scalar types
case EHTokVoid:
case EHTokString:
case EHTokBool:
case EHTokInt:
case EHTokUint:

2
hlsl/hlslTokens.h
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@ -70,10 +70,10 @@ enum EHlslTokenClass {
EHTokBuffer,
EHTokVector,
EHTokMatrix,
EHTokString,
// scalar types
EHTokVoid,
EHTokString,
EHTokBool,
EHTokInt,
EHTokUint,