1 #ifndef MSP_GL_SL_GENERATE_H_
2 #define MSP_GL_SL_GENERATE_H_
14 /** Combines multiple declarations of the same identifier into one. */
15 class DeclarationCombiner: private TraversingVisitor
18 std::map<std::string, std::vector<FunctionDeclaration *> > functions;
19 std::map<std::string, VariableDeclaration *> variables;
20 std::set<Node *> nodes_to_remove;
26 virtual void visit(Block &);
27 virtual void visit(VariableDeclaration &);
28 virtual void visit(FunctionDeclaration &) { }
31 /** Manipulates specialization constants. If values are specified, turns
32 specialization constants into normal constants. Without values assigns
33 automatic constant_ids to specialization constants. */
34 class ConstantSpecializer: private TraversingVisitor
37 const std::map<std::string, int> *values;
40 ConstantSpecializer();
42 void apply(Stage &, const std::map<std::string, int> *);
45 virtual void visit(VariableDeclaration &);
48 /** Forms links between nested blocks in the syntax tree. */
49 class BlockHierarchyResolver: private TraversingVisitor
52 void apply(Stage &s) { s.content.visit(*this); }
55 virtual void enter(Block &);
58 /** Resolves types of variables and base types of other types. */
59 class TypeResolver: private TraversingVisitor
70 virtual void visit(BasicTypeDeclaration &);
71 virtual void visit(ImageTypeDeclaration &);
72 virtual void visit(StructDeclaration &);
73 virtual void visit(VariableDeclaration &);
74 virtual void visit(FunctionDeclaration &);
77 /** Resolves variable references. Variable references which match the name
78 of an interface block are turned into interface block references. */
79 class VariableResolver: private TraversingVisitor
83 std::map<std::string, VariableDeclaration *> *r_members;
84 RefPtr<InterfaceBlockReference> r_iface_ref;
85 std::string block_interface;
87 bool r_self_referencing;
88 VariableDeclaration *r_assignment_target;
96 virtual void enter(Block &);
97 virtual void visit(VariableReference &);
98 virtual void visit(InterfaceBlockReference &);
99 virtual void visit(MemberAccess &);
100 virtual void visit(UnaryExpression &);
101 virtual void visit(BinaryExpression &);
102 virtual void visit(Assignment &);
103 virtual void visit(FunctionCall &);
104 virtual void visit(VariableDeclaration &);
105 virtual void visit(InterfaceBlock &);
108 /** Resolves function declarations and calls. */
109 class FunctionResolver: private TraversingVisitor
113 std::map<std::string, std::vector<FunctionDeclaration *> > declarations;
119 virtual void visit(FunctionCall &);
120 virtual void visit(FunctionDeclaration &);
123 /** Materializes implicitly declared interfaces.
125 Out variable declarations inside functions are moved to the global scope.
127 Passthrough statements are processed, generating out variables to match in
128 variables and copying values.
130 Unresolved variables are looked up in the previous stage's out variables. */
131 class InterfaceGenerator: private TraversingVisitor
135 std::string in_prefix;
136 std::string out_prefix;
138 InterfaceBlock *iface_block;
140 Block *iface_target_block;
141 NodeList<Statement>::iterator iface_insert_point;
142 NodeList<Statement>::iterator assignment_insert_point;
143 std::set<Node *> nodes_to_remove;
146 InterfaceGenerator();
151 static std::string get_out_prefix(Stage::Type);
152 std::string change_prefix(const std::string &, const std::string &) const;
153 virtual void visit(Block &);
154 VariableDeclaration *generate_interface(VariableDeclaration &, const std::string &, const std::string &);
155 InterfaceBlock *generate_interface(InterfaceBlock &);
156 ExpressionStatement &insert_assignment(const std::string &, Expression *);
157 virtual void visit(VariableReference &);
158 virtual void visit(VariableDeclaration &);
159 virtual void visit(InterfaceBlock &);
160 virtual void visit(FunctionDeclaration &);
161 virtual void visit(Passthrough &);