1 #ifndef MSP_GL_PROGRAMSYNTAX_H_
2 #define MSP_GL_PROGRAMSYNTAX_H_
12 namespace ProgramSyntax {
19 Node &operator=(const Node &);
23 virtual Node *clone() const = 0;
24 virtual void visit(NodeVisitor &) = 0;
34 NodePtr(T *n = 0): node(n) { }
35 NodePtr(const NodePtr &p): node(clone(p.node)) { }
36 NodePtr &operator=(const NodePtr &p) { delete node; node = clone(p.node); return *this; }
37 #if __cplusplus>=201103L
38 NodePtr(NodePtr &&p): node(p.node) { p.node = 0; }
39 NodePtr &operator=(NodePtr &&p) { delete node; node = p.node; p.node = 0; return *this; }
41 ~NodePtr() { delete node; }
44 static T *clone(T *n) { return n ? n->clone() : 0; }
47 T *operator->() { return node; }
48 const T *operator->() const { return node; }
49 T &operator*() { return *node; }
50 const T &operator*() const { return *node; }
51 operator void *() const { return node; }
54 struct StructDeclaration;
55 struct VariableDeclaration;
56 struct FunctionDeclaration;
60 std::list<NodePtr<Node> > body;
62 std::map<std::string, StructDeclaration *> types;
63 std::map<std::string, VariableDeclaration *> variables;
67 virtual Block *clone() const { return new Block(*this); }
68 virtual void visit(NodeVisitor &);
71 struct Expression: Node
73 virtual Expression *clone() const = 0;
76 struct Literal: Expression
80 virtual Literal *clone() const { return new Literal(*this); }
81 virtual void visit(NodeVisitor &);
84 struct ParenthesizedExpression: Expression
86 NodePtr<Expression> expression;
88 virtual ParenthesizedExpression *clone() const { return new ParenthesizedExpression(*this); }
89 virtual void visit(NodeVisitor &);
92 struct VariableReference: Expression
95 VariableDeclaration *declaration;
99 virtual VariableReference *clone() const { return new VariableReference(*this); }
100 virtual void visit(NodeVisitor &);
103 struct MemberAccess: Expression
105 NodePtr<Expression> left;
107 VariableDeclaration *declaration;
109 virtual MemberAccess *clone() const { return new MemberAccess(*this); }
110 virtual void visit(NodeVisitor &);
113 struct UnaryExpression: Expression
116 NodePtr<Expression> expression;
121 virtual UnaryExpression *clone() const { return new UnaryExpression(*this); }
122 virtual void visit(NodeVisitor &);
125 struct BinaryExpression: Expression
127 NodePtr<Expression> left;
129 NodePtr<Expression> right;
132 virtual BinaryExpression *clone() const { return new BinaryExpression(*this); }
133 virtual void visit(NodeVisitor &);
136 struct Assignment: BinaryExpression
138 bool self_referencing;
139 VariableDeclaration *target_declaration;
143 virtual Assignment *clone() const { return new Assignment(*this); }
144 virtual void visit(NodeVisitor &);
147 struct FunctionCall: Expression
150 FunctionDeclaration *declaration;
152 std::vector<NodePtr<Expression> > arguments;
156 virtual FunctionCall *clone() const { return new FunctionCall(*this); }
157 virtual void visit(NodeVisitor &);
160 struct ExpressionStatement: Node
162 NodePtr<Expression> expression;
164 virtual ExpressionStatement *clone() const { return new ExpressionStatement(*this); }
165 virtual void visit(NodeVisitor &);
172 virtual Import *clone() const { return new Import(*this); }
173 virtual void visit(NodeVisitor &);
180 std::string identifier;
184 std::vector<Qualifier> qualifiers;
185 std::string interface;
187 virtual Layout *clone() const { return new Layout(*this); }
188 virtual void visit(NodeVisitor &);
191 struct StructDeclaration: Node
198 virtual StructDeclaration *clone() const { return new StructDeclaration(*this); }
199 virtual void visit(NodeVisitor &);
202 struct VariableDeclaration: Node
205 std::string sampling;
206 std::string interface;
208 StructDeclaration *type_declaration;
211 NodePtr<Expression> array_size;
212 NodePtr<Expression> init_expression;
213 VariableDeclaration *linked_declaration;
215 VariableDeclaration();
217 virtual VariableDeclaration *clone() const { return new VariableDeclaration(*this); }
218 virtual void visit(NodeVisitor &);
221 struct InterfaceBlock: Node
223 std::string interface;
226 std::string instance_name;
231 virtual InterfaceBlock *clone() const { return new InterfaceBlock(*this); }
232 virtual void visit(NodeVisitor &);
235 struct FunctionDeclaration: Node
237 std::string return_type;
239 std::vector<NodePtr<VariableDeclaration> > parameters;
240 FunctionDeclaration *definition;
243 FunctionDeclaration();
244 FunctionDeclaration(const FunctionDeclaration &);
246 virtual FunctionDeclaration *clone() const { return new FunctionDeclaration(*this); }
247 virtual void visit(NodeVisitor &);
250 struct Conditional: Node
252 NodePtr<Expression> condition;
256 virtual Conditional *clone() const { return new Conditional(*this); }
257 virtual void visit(NodeVisitor &);
260 struct Iteration: Node
262 NodePtr<Node> init_statement;
263 NodePtr<Expression> condition;
264 NodePtr<Expression> loop_expression;
267 virtual Iteration *clone() const { return new Iteration(*this); }
268 virtual void visit(NodeVisitor &);
271 struct Passthrough: Node
273 NodePtr<Expression> subscript;
275 virtual Passthrough *clone() const { return new Passthrough(*this); }
276 virtual void visit(NodeVisitor &);
281 NodePtr<Expression> expression;
283 virtual Return *clone() const { return new Return(*this); }
284 virtual void visit(NodeVisitor &);
289 virtual ~NodeVisitor() { }
291 virtual void visit(Block &) { }
292 virtual void visit(Literal &) { }
293 virtual void visit(ParenthesizedExpression &) { }
294 virtual void visit(VariableReference &) { }
295 virtual void visit(MemberAccess &) { }
296 virtual void visit(UnaryExpression &) { }
297 virtual void visit(BinaryExpression &) { }
298 virtual void visit(Assignment &);
299 virtual void visit(FunctionCall &) { }
300 virtual void visit(ExpressionStatement &) { }
301 virtual void visit(Import &) { }
302 virtual void visit(Layout &) { }
303 virtual void visit(StructDeclaration &) { }
304 virtual void visit(VariableDeclaration &) { }
305 virtual void visit(InterfaceBlock &) { }
306 virtual void visit(FunctionDeclaration &) { }
307 virtual void visit(Conditional &) { }
308 virtual void visit(Iteration &) { }
309 virtual void visit(Passthrough &) { }
310 virtual void visit(Return &) { }
313 struct TraversingVisitor: NodeVisitor
315 virtual void visit(Block &);
316 virtual void visit(ParenthesizedExpression &);
317 virtual void visit(MemberAccess &);
318 virtual void visit(UnaryExpression &);
319 virtual void visit(BinaryExpression &);
320 virtual void visit(FunctionCall &);
321 virtual void visit(ExpressionStatement &);
322 virtual void visit(StructDeclaration &);
323 virtual void visit(VariableDeclaration &);
324 virtual void visit(InterfaceBlock &);
325 virtual void visit(FunctionDeclaration &);
326 virtual void visit(Conditional &);
327 virtual void visit(Iteration &);
328 virtual void visit(Passthrough &);
329 virtual void visit(Return &);
344 ProgramSyntax::Block content;
345 std::map<std::string, VariableDeclaration *> in_variables;
346 std::map<std::string, VariableDeclaration *> out_variables;
347 Version required_version;
355 std::list<Stage> stages;
360 } // namespace ProgramSyntax