Variable and parameter declarations for GLSL

src/libs/glsl/glsl.g

@@ -288,6 +288,10 @@ public:
             int qualifier;
             List<LayoutQualifier *> *layout_list;
         } type_qualifier;
+        struct {
+            Type *type;
+            const std::string *name;
+        } param_declarator;
         // ### ast nodes...
     };
 
@@ -1126,7 +1130,7 @@ case $rule_number: {
 declaration ::= init_declarator_list SEMICOLON ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<InitDeclaration>(sym(1).declaration_list);
 }   break;
 ./
 
@@ -1217,182 +1221,230 @@ case $rule_number: {
 parameter_declarator ::= type_specifier IDENTIFIER ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).param_declarator.type = type(1);
+    sym(1).param_declarator.name = string(2);
 }   break;
 ./
 
 parameter_declarator ::= type_specifier IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).param_declarator.type = makeAstNode<ArrayType>(type(1), expression(4));
+    sym(1).param_declarator.name = string(2);
 }   break;
 ./
 
 parameter_declaration ::= parameter_type_qualifier parameter_qualifier parameter_declarator ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<ParameterDeclaration>
+        (makeAstNode<QualifiedType>
+            (sym(1).qualifier, sym(3).param_declarator.type,
+             (List<LayoutQualifier *> *)0),
+         ParameterDeclaration::Qualifier(sym(2).qualifier),
+         sym(3).param_declarator.name);
 }   break;
 ./
 
 parameter_declaration ::= parameter_qualifier parameter_declarator ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<ParameterDeclaration>
+        (sym(2).param_declarator.type,
+         ParameterDeclaration::Qualifier(sym(1).qualifier),
+         sym(2).param_declarator.name);
 }   break;
 ./
 
 parameter_declaration ::= parameter_type_qualifier parameter_qualifier parameter_type_specifier ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<ParameterDeclaration>
+        (makeAstNode<QualifiedType>
+            (sym(1).qualifier, type(3), (List<LayoutQualifier *> *)0),
+         ParameterDeclaration::Qualifier(sym(2).qualifier),
+         (const std::string *)0);
 }   break;
 ./
 
 parameter_declaration ::= parameter_qualifier parameter_type_specifier ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<ParameterDeclaration>
+        (type(2), ParameterDeclaration::Qualifier(sym(1).qualifier),
+         (const std::string *)0);
 }   break;
 ./
 
 parameter_qualifier ::= empty ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).qualifier = ParameterDeclaration::In;
 }   break;
 ./
 
 parameter_qualifier ::= IN ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).qualifier = ParameterDeclaration::In;
 }   break;
 ./
 
 parameter_qualifier ::= OUT ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).qualifier = ParameterDeclaration::Out;
 }   break;
 ./
 
 parameter_qualifier ::= INOUT ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).qualifier = ParameterDeclaration::InOut;
 }   break;
 ./
 
 parameter_type_specifier ::= type_specifier ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    // nothing to do.
 }   break;
 ./
 
 init_declarator_list ::= single_declaration ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+        (sym(1).declaration);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    Declaration *decl = makeAstNode<VariableDeclaration>(type, string(3));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER LEFT_BRACKET RIGHT_BRACKET ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    type = makeAstNode<ArrayType>(type);
+    Declaration *decl = makeAstNode<VariableDeclaration>(type, string(3));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    type = makeAstNode<ArrayType>(type, expression(5));
+    Declaration *decl = makeAstNode<VariableDeclaration>(type, string(3));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER LEFT_BRACKET RIGHT_BRACKET EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    type = makeAstNode<ArrayType>(type);
+    Declaration *decl = makeAstNode<VariableDeclaration>
+            (type, string(3), expression(7));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    type = makeAstNode<ArrayType>(type, expression(5));
+    Declaration *decl = makeAstNode<VariableDeclaration>
+            (type, string(3), expression(8));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 init_declarator_list ::= init_declarator_list COMMA IDENTIFIER EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    Type *type = VariableDeclaration::declarationType(sym(1).declaration_list);
+    Declaration *decl = makeAstNode<VariableDeclaration>
+            (type, string(3), expression(5));
+    sym(1).declaration_list = makeAstNode< List<Declaration *> >
+            (sym(1).declaration_list, decl);
 }   break;
 ./
 
 single_declaration ::= fully_specified_type ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<TypeDeclaration>(type(1));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>(type(1), string(2));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER LEFT_BRACKET RIGHT_BRACKET ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>
+        (makeAstNode<ArrayType>(type(1)), string(2));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>
+        (makeAstNode<ArrayType>(type(1), expression(4)), string(2));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER LEFT_BRACKET RIGHT_BRACKET EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>
+        (makeAstNode<ArrayType>(type(1)), string(2), expression(6));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>
+        (makeAstNode<ArrayType>(type(1), expression(4)),
+         string(2), expression(7));
 }   break;
 ./
 
 single_declaration ::= fully_specified_type IDENTIFIER EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<VariableDeclaration>
+        (type(1), string(2), expression(4));
 }   break;
 ./
 
 single_declaration ::= INVARIANT IDENTIFIER ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<InvariantDeclaration>(string(2));
 }   break;
 ./
 
@@ -2391,14 +2443,14 @@ case $rule_number: {
 initializer ::= assignment_expression ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    // nothing to do.
 }   break;
 ./
 
 declaration_statement ::= declaration ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<DeclarationStatement>(sym(1).declaration_list);
 }   break;
 ./
 
@@ -2568,7 +2620,8 @@ case $rule_number: {
 condition ::= fully_specified_type IDENTIFIER EQUAL initializer ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    ast(1) = makeAstNode<DeclarationExpression>
+        (type(1), string(2), expression(4));
 }   break;
 ./
 
@@ -2755,7 +2808,7 @@ case $rule_number: {
 external_declaration ::= declaration ;
 /.
 case $rule_number: {
-    // ast(1) = new ...AST(...);
+    // nothing to do.
 }   break;
 ./
 

src/libs/glsl/glslast.cpp

@@ -124,6 +124,15 @@ void FunctionIdentifier::accept0(Visitor *visitor)
     visitor->endVisit(this);
 }
 
+void DeclarationExpression::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this)) {
+        accept(type, visitor);
+        accept(initializer, visitor);
+    }
+    visitor->endVisit(this);
+}
+
 void ExpressionStatement::accept0(Visitor *visitor)
 {
     if (visitor->visit(this))
@@ -206,6 +215,13 @@ void CaseLabelStatement::accept0(Visitor *visitor)
     visitor->endVisit(this);
 }
 
+void DeclarationStatement::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this))
+        accept(decls, visitor);
+    visitor->endVisit(this);
+}
+
 BasicType::BasicType(int _token, const char *_name, Category _category)
     : Type(Kind_BasicType), token(_token), name(_name), categ(_category)
 {
@@ -348,3 +364,45 @@ void PrecisionDeclaration::accept0(Visitor *visitor)
         accept(type, visitor);
     visitor->endVisit(this);
 }
+
+void ParameterDeclaration::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this))
+        accept(type, visitor);
+    visitor->endVisit(this);
+}
+
+void VariableDeclaration::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this)) {
+        accept(type, visitor);
+        accept(initializer, visitor);
+    }
+    visitor->endVisit(this);
+}
+
+Type *VariableDeclaration::declarationType(List<Declaration *> *decls)
+{
+    VariableDeclaration *var = decls->value->asVariableDeclaration();
+    return var ? var->type : 0;
+}
+
+void TypeDeclaration::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this))
+        accept(type, visitor);
+    visitor->endVisit(this);
+}
+
+void InvariantDeclaration::accept0(Visitor *visitor)
+{
+    visitor->visit(this);
+    visitor->endVisit(this);
+}
+
+void InitDeclaration::accept0(Visitor *visitor)
+{
+    if (visitor->visit(this))
+        accept(decls, visitor);
+    visitor->endVisit(this);
+}

src/libs/glsl/glslast.h

@@ -47,6 +47,7 @@ class AssignmentExpression;
 class MemberAccessExpression;
 class FunctionCallExpression;
 class FunctionIdentifier;
+class DeclarationExpression;
 class Statement;
 class ExpressionStatement;
 class CompoundStatement;
@@ -58,6 +59,7 @@ class JumpStatement;
 class ReturnStatement;
 class SwitchStatement;
 class CaseLabelStatement;
+class DeclarationStatement;
 class Type;
 class BasicType;
 class NamedType;
@@ -66,6 +68,11 @@ class StructType;
 class QualifiedType;
 class Declaration;
 class PrecisionDeclaration;
+class ParameterDeclaration;
+class VariableDeclaration;
+class TypeDeclaration;
+class InvariantDeclaration;
+class InitDeclaration;
 class Visitor;
 
 template <typename T>
@@ -161,6 +168,7 @@ public:
         Kind_FunctionCall,
         Kind_MemberFunctionCall,
         Kind_FunctionIdentifier,
+        Kind_DeclarationExpression,
 
         // Assignment expressions
         Kind_Assign,
@@ -190,6 +198,7 @@ public:
         Kind_Switch,
         Kind_CaseLabel,
         Kind_DefaultLabel,
+        Kind_DeclarationStatement,
 
         // Types
         Kind_BasicType,
@@ -202,7 +211,12 @@ public:
         Kind_QualifiedType,
 
         // Declarations
-        Kind_PrecisionDeclaration
+        Kind_PrecisionDeclaration,
+        Kind_ParameterDeclaration,
+        Kind_VariableDeclaration,
+        Kind_TypeDeclaration,
+        Kind_InvariantDeclaration,
+        Kind_InitDeclaration
     };
 
     virtual TranslationUnit *asTranslationUnit() { return 0; }
@@ -217,6 +231,7 @@ public:
     virtual MemberAccessExpression *asMemberAccessExpression() { return 0; }
     virtual FunctionCallExpression *asFunctionCallExpression() { return 0; }
     virtual FunctionIdentifier *asFunctionIdentifier() { return 0; }
+    virtual DeclarationExpression *asDeclarationExpression() { return 0; }
 
     virtual Statement *asStatement() { return 0; }
     virtual ExpressionStatement *asExpressionStatement() { return 0; }
@@ -229,6 +244,7 @@ public:
     virtual ReturnStatement *asReturnStatement() { return 0; }
     virtual SwitchStatement *asSwitchStatement() { return 0; }
     virtual CaseLabelStatement *asCaseLabelStatement() { return 0; }
+    virtual DeclarationStatement *asDeclarationStatement() { return 0; }
 
     virtual Type *asType() { return 0; }
     virtual BasicType *asBasicType() { return 0; }
@@ -239,6 +255,11 @@ public:
 
     virtual Declaration *asDeclaration() { return 0; }
     virtual PrecisionDeclaration *asPrecisionDeclaration() { return 0; }
+    virtual ParameterDeclaration *asParameterDeclaration() { return 0; }
+    virtual VariableDeclaration *asVariableDeclaration() { return 0; }
+    virtual TypeDeclaration *asTypeDeclaration() { return 0; }
+    virtual InvariantDeclaration *asInvariantDeclaration() { return 0; }
+    virtual InitDeclaration *asInitDeclaration() { return 0; }
 
     void accept(Visitor *visitor);
     static void accept(AST *ast, Visitor *visitor);
@@ -436,6 +457,24 @@ public: // attributes
     Type *type;
 };
 
+class GLSL_EXPORT DeclarationExpression: public Expression
+{
+public:
+    DeclarationExpression(Type *_type, const std::string *_name,
+                          Expression *_initializer)
+        : Expression(Kind_DeclarationExpression), type(_type)
+        , name(_name), initializer(_initializer) {}
+
+    virtual DeclarationExpression *asDeclarationExpression() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    Type *type;
+    const std::string *name;
+    Expression *initializer;
+};
+
 class GLSL_EXPORT Statement: public AST
 {
 protected:
@@ -594,6 +633,20 @@ public: // attributes
     Expression *expr;
 };
 
+class GLSL_EXPORT DeclarationStatement: public Statement
+{
+public:
+    DeclarationStatement(List<Declaration *> *_decls)
+        : Statement(Kind_DeclarationStatement), decls(finish(_decls)) {}
+
+    virtual DeclarationStatement *asDeclarationStatement() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    List<Declaration *> *decls;
+};
+
 class GLSL_EXPORT Type: public AST
 {
 protected:
@@ -775,7 +828,7 @@ class GLSL_EXPORT QualifiedType: public Type
 public:
     QualifiedType(int _qualifiers, Type *_type, List<LayoutQualifier *> *_layout_list)
         : Type(Kind_QualifiedType), qualifiers(_qualifiers), type(_type)
-        , layout_list(_layout_list) {}
+        , layout_list(finish(_layout_list)) {}
 
     enum
     {
@@ -842,6 +895,92 @@ public: // attributes
     Type *type;
 };
 
+class ParameterDeclaration: public Declaration
+{
+public:
+    enum Qualifier
+    {
+        In,
+        Out,
+        InOut
+    };
+    ParameterDeclaration(Type *_type, Qualifier _qualifier,
+                         const std::string *_name)
+        : Declaration(Kind_ParameterDeclaration), type(_type)
+        , qualifier(_qualifier), name(_name) {}
+
+    virtual ParameterDeclaration *asParameterDeclaration() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    Type *type;
+    Qualifier qualifier;
+    const std::string *name;
+};
+
+class VariableDeclaration: public Declaration
+{
+public:
+    VariableDeclaration(Type *_type, const std::string *_name,
+                        Expression *_initializer = 0)
+        : Declaration(Kind_VariableDeclaration), type(_type)
+        , name(_name), initializer(_initializer) {}
+
+    virtual VariableDeclaration *asVariableDeclaration() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+    static Type *declarationType(List<Declaration *> *decls);
+
+public: // attributes
+    Type *type;
+    const std::string *name;
+    Expression *initializer;
+};
+
+class TypeDeclaration: public Declaration
+{
+public:
+    TypeDeclaration(Type *_type)
+        : Declaration(Kind_TypeDeclaration), type(_type) {}
+
+    virtual TypeDeclaration *asTypeDeclaration() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    Type *type;
+};
+
+class InvariantDeclaration: public Declaration
+{
+public:
+    InvariantDeclaration(const std::string *_name)
+        : Declaration(Kind_InvariantDeclaration), name(_name) {}
+
+    virtual InvariantDeclaration *asInvariantDeclaration() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    const std::string *name;
+};
+
+class InitDeclaration: public Declaration
+{
+public:
+    InitDeclaration(List<Declaration *> *_decls)
+        : Declaration(Kind_InitDeclaration), decls(finish(_decls)) {}
+
+    virtual InitDeclaration *asInitDeclaration() { return this; }
+
+    virtual void accept0(Visitor *visitor);
+
+public: // attributes
+    List<Declaration *> *decls;
+};
+
 } // namespace GLSL
 
 #endif // GLSLAST_H

src/libs/glsl/glslastvisitor.h

@@ -72,6 +72,9 @@ public:
     virtual bool visit(FunctionIdentifier *) { return true; }
     virtual void endVisit(FunctionIdentifier *) {}
 
+    virtual bool visit(DeclarationExpression *) { return true; }
+    virtual void endVisit(DeclarationExpression *) {}
+
     virtual bool visit(ExpressionStatement *) { return true; }
     virtual void endVisit(ExpressionStatement *) {}
 
@@ -102,6 +105,9 @@ public:
     virtual bool visit(CaseLabelStatement *) { return true; }
     virtual void endVisit(CaseLabelStatement *) {}
 
+    virtual bool visit(DeclarationStatement *) { return true; }
+    virtual void endVisit(DeclarationStatement *) {}
+
     virtual bool visit(BasicType *) { return true; }
     virtual void endVisit(BasicType *) {}
 
@@ -122,6 +128,21 @@ public:
 
     virtual bool visit(PrecisionDeclaration *) { return true; }
     virtual void endVisit(PrecisionDeclaration *) {}
+
+    virtual bool visit(ParameterDeclaration *) { return true; }
+    virtual void endVisit(ParameterDeclaration *) {}
+