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HLSL: Add typedef grammar and production.

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This commit is contained in:
John Kessenich
2016-07-05 00:02:40 -06:00
parent d5ed0b6982
commit 5e69ec683d
6 changed files with 192 additions and 11 deletions
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27
hlsl/hlslParseHelper.cpp
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@@ -3018,6 +3018,27 @@ const TFunction* HlslParseContext::findFunction(const TSourceLoc& loc, const TFu
return candidate;
}
//
// Do everything necessary to handle a typedef declaration, for a single symbol.
//
// 'parseType' is the type part of the declaration (to the left)
// 'arraySizes' is the arrayness tagged on the identifier (to the right)
//
void HlslParseContext::declareTypedef(const TSourceLoc& loc, TString& identifier, const TType& parseType, TArraySizes* arraySizes)
{
TType type;
type.deepCopy(parseType);
// Arrayness is potentially coming both from the type and from the
// variable: "int[] a[];" or just one or the other.
// Merge it all to the type, so all arrayness is part of the type.
arrayDimMerge(type, arraySizes);
TVariable* typeSymbol = new TVariable(&identifier, type, true);
if (! symbolTable.insert(*typeSymbol))
error(loc, "name already defined", "typedef", identifier.c_str());
}
//
// Do everything necessary to handle a variable (non-block) declaration.
// Either redeclaring a variable, or making a new one, updating the symbol
@@ -3026,7 +3047,7 @@ const TFunction* HlslParseContext::findFunction(const TSourceLoc& loc, const TFu
// Returns a subtree node that computes an initializer, if needed.
// Returns nullptr if there is no code to execute for initialization.
//
// 'publicType' is the type part of the declaration (to the left)
// 'parseType' is the type part of the declaration (to the left)
// 'arraySizes' is the arrayness tagged on the identifier (to the right)
//
TIntermNode* HlslParseContext::declareVariable(const TSourceLoc& loc, TString& identifier, const TType& parseType, TArraySizes* arraySizes, TIntermTyped* initializer)
@@ -3036,7 +3057,7 @@ TIntermNode* HlslParseContext::declareVariable(const TSourceLoc& loc, TString& i
if (type.isImplicitlySizedArray()) {
// Because "int[] a = int[2](...), b = int[3](...)" makes two arrays a and b
// of different sizes, for this case sharing the shallow copy of arrayness
// with the publicType oversubscribes it, so get a deep copy of the arrayness.
// with the parseType oversubscribes it, so get a deep copy of the arrayness.
type.newArraySizes(*parseType.getArraySizes());
}
@@ -3045,7 +3066,7 @@ TIntermNode* HlslParseContext::declareVariable(const TSourceLoc& loc, TString& i
// Check for redeclaration of built-ins and/or attempting to declare a reserved name
bool newDeclaration = false; // true if a new entry gets added to the symbol table
TSymbol* symbol = nullptr; // = redeclareBuiltinVariable(loc, identifier, type.getQualifier(), publicType.shaderQualifiers, newDeclaration);
TSymbol* symbol = nullptr; // = redeclareBuiltinVariable(loc, identifier, type.getQualifier(), parseType.shaderQualifiers, newDeclaration);
inheritGlobalDefaults(type.getQualifier());