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
63 std::map<TypeDeclaration *, TypeDeclaration *> alias_map;
64 std::map<TypeDeclaration *, TypeDeclaration *> array_types;
65 NodeList<Statement>::iterator type_insert_point;
73 TypeDeclaration *resolve_type(const std::string &);
74 virtual void visit(Block &);
75 virtual void visit(BasicTypeDeclaration &);
76 virtual void visit(ImageTypeDeclaration &);
77 virtual void visit(StructDeclaration &);
78 virtual void visit(VariableDeclaration &);
79 virtual void visit(FunctionDeclaration &);
82 /** Resolves variable references. Variable references which match the name
83 of an interface block are turned into interface block references. */
84 class VariableResolver: private TraversingVisitor
88 std::map<std::string, VariableDeclaration *> *r_members;
89 RefPtr<InterfaceBlockReference> r_iface_ref;
90 std::string block_interface;
92 bool r_self_referencing;
93 VariableDeclaration *r_assignment_target;
101 virtual void enter(Block &);
102 virtual void visit(VariableReference &);
103 virtual void visit(InterfaceBlockReference &);
104 virtual void visit(MemberAccess &);
105 virtual void visit(UnaryExpression &);
106 virtual void visit(BinaryExpression &);
107 virtual void visit(Assignment &);
108 virtual void visit(FunctionCall &);
109 virtual void visit(VariableDeclaration &);
110 virtual void visit(InterfaceBlock &);
113 /** Resolves types and lvalueness of expressions. */
114 class ExpressionResolver: private TraversingVisitor
126 std::vector<BasicTypeDeclaration *> basic_types;
129 void apply(Stage &s) { stage = &s; s.content.visit(*this); }
132 static bool is_scalar(BasicTypeDeclaration &);
133 static bool is_vector_or_matrix(BasicTypeDeclaration &);
134 static BasicTypeDeclaration *get_element_type(BasicTypeDeclaration &);
135 static bool can_convert(BasicTypeDeclaration &, BasicTypeDeclaration &);
136 static Compatibility get_compatibility(BasicTypeDeclaration &, BasicTypeDeclaration &);
137 BasicTypeDeclaration *find_type(BasicTypeDeclaration::Kind, unsigned);
138 BasicTypeDeclaration *find_type(BasicTypeDeclaration &, BasicTypeDeclaration::Kind, unsigned);
139 void convert_to(RefPtr<Expression> &, BasicTypeDeclaration &);
140 bool convert_to_element(RefPtr<Expression> &, BasicTypeDeclaration &);
142 virtual void visit(Literal &);
143 virtual void visit(ParenthesizedExpression &);
144 virtual void visit(VariableReference &);
145 virtual void visit(InterfaceBlockReference &);
146 virtual void visit(MemberAccess &);
147 virtual void visit(UnaryExpression &);
148 virtual void visit(BinaryExpression &);
149 virtual void visit(Assignment &);
150 virtual void visit(FunctionCall &);
151 virtual void visit(BasicTypeDeclaration &);
152 virtual void visit(VariableDeclaration &);
155 /** Resolves function declarations and calls. */
156 class FunctionResolver: private TraversingVisitor
160 std::map<std::string, std::vector<FunctionDeclaration *> > declarations;
166 virtual void visit(FunctionCall &);
167 virtual void visit(FunctionDeclaration &);
170 /** Materializes implicitly declared interfaces.
172 Out variable declarations inside functions are moved to the global scope.
174 Passthrough statements are processed, generating out variables to match in
175 variables and copying values.
177 Unresolved variables are looked up in the previous stage's out variables. */
178 class InterfaceGenerator: private TraversingVisitor
182 std::string in_prefix;
183 std::string out_prefix;
185 InterfaceBlock *iface_block;
187 Block *iface_target_block;
188 NodeList<Statement>::iterator iface_insert_point;
189 NodeList<Statement>::iterator assignment_insert_point;
190 std::set<Node *> nodes_to_remove;
193 InterfaceGenerator();
198 static std::string get_out_prefix(Stage::Type);
199 std::string change_prefix(const std::string &, const std::string &) const;
200 virtual void visit(Block &);
201 VariableDeclaration *generate_interface(VariableDeclaration &, const std::string &, const std::string &);
202 InterfaceBlock *generate_interface(InterfaceBlock &);
203 ExpressionStatement &insert_assignment(const std::string &, Expression *);
204 virtual void visit(VariableReference &);
205 virtual void visit(VariableDeclaration &);
206 virtual void visit(InterfaceBlock &);
207 virtual void visit(FunctionDeclaration &);
208 virtual void visit(Passthrough &);