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 RefPtr<InterfaceBlockReference> r_iface_ref;
89 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;
130 ExpressionResolver();
135 static bool is_scalar(BasicTypeDeclaration &);
136 static bool is_vector_or_matrix(BasicTypeDeclaration &);
137 static BasicTypeDeclaration *get_element_type(BasicTypeDeclaration &);
138 static bool can_convert(BasicTypeDeclaration &, BasicTypeDeclaration &);
139 static Compatibility get_compatibility(BasicTypeDeclaration &, BasicTypeDeclaration &);
140 BasicTypeDeclaration *find_type(BasicTypeDeclaration::Kind, unsigned);
141 BasicTypeDeclaration *find_type(BasicTypeDeclaration &, BasicTypeDeclaration::Kind, unsigned);
142 void convert_to(RefPtr<Expression> &, BasicTypeDeclaration &);
143 bool convert_to_element(RefPtr<Expression> &, BasicTypeDeclaration &);
144 void resolve(Expression &, TypeDeclaration *, bool);
146 virtual void visit(Literal &);
147 virtual void visit(ParenthesizedExpression &);
148 virtual void visit(VariableReference &);
149 virtual void visit(InterfaceBlockReference &);
150 virtual void visit(MemberAccess &);
151 virtual void visit(UnaryExpression &);
152 virtual void visit(BinaryExpression &);
153 virtual void visit(Assignment &);
154 virtual void visit(FunctionCall &);
155 virtual void visit(BasicTypeDeclaration &);
156 virtual void visit(VariableDeclaration &);
159 /** Resolves function declarations and calls. */
160 class FunctionResolver: private TraversingVisitor
164 std::map<std::string, std::vector<FunctionDeclaration *> > declarations;
170 virtual void visit(FunctionCall &);
171 virtual void visit(FunctionDeclaration &);
174 /** Materializes implicitly declared interfaces.
176 Out variable declarations inside functions are moved to the global scope.
178 Passthrough statements are processed, generating out variables to match in
179 variables and copying values.
181 Unresolved variables are looked up in the previous stage's out variables. */
182 class InterfaceGenerator: private TraversingVisitor
186 std::string in_prefix;
187 std::string out_prefix;
189 InterfaceBlock *iface_block;
191 Block *iface_target_block;
192 NodeList<Statement>::iterator iface_insert_point;
193 NodeList<Statement>::iterator assignment_insert_point;
194 std::set<Node *> nodes_to_remove;
197 InterfaceGenerator();
202 static std::string get_out_prefix(Stage::Type);
203 std::string change_prefix(const std::string &, const std::string &) const;
204 virtual void visit(Block &);
205 VariableDeclaration *generate_interface(VariableDeclaration &, const std::string &, const std::string &);
206 InterfaceBlock *generate_interface(InterfaceBlock &);
207 ExpressionStatement &insert_assignment(const std::string &, Expression *);
208 virtual void visit(VariableReference &);
209 virtual void visit(VariableDeclaration &);
210 virtual void visit(InterfaceBlock &);
211 virtual void visit(FunctionDeclaration &);
212 virtual void visit(Passthrough &);