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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_AST_H_ | 5 #ifndef VM_AST_H_ |
6 #define VM_AST_H_ | 6 #define VM_AST_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "vm/allocation.h" | 9 #include "vm/allocation.h" |
10 #include "vm/growable_array.h" | 10 #include "vm/growable_array.h" |
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85 FOR_EACH_NODE(DEFINE_VISITOR_FUNCTION) | 85 FOR_EACH_NODE(DEFINE_VISITOR_FUNCTION) |
86 #undef DEFINE_VISITOR_FUNCTION | 86 #undef DEFINE_VISITOR_FUNCTION |
87 | 87 |
88 private: | 88 private: |
89 DISALLOW_COPY_AND_ASSIGN(AstNodeVisitor); | 89 DISALLOW_COPY_AND_ASSIGN(AstNodeVisitor); |
90 }; | 90 }; |
91 | 91 |
92 | 92 |
93 #define DECLARE_COMMON_NODE_FUNCTIONS(type) \ | 93 #define DECLARE_COMMON_NODE_FUNCTIONS(type) \ |
94 virtual void Visit(AstNodeVisitor* visitor); \ | 94 virtual void Visit(AstNodeVisitor* visitor); \ |
95 virtual const char* PrettyName() const; \ | 95 virtual const char* Name() const; \ |
96 virtual type* As##type() { return this; } | 96 virtual type* As##type() { return this; } |
97 | 97 |
98 | 98 |
99 class AstNode : public ZoneAllocated { | 99 class AstNode : public ZoneAllocated { |
100 public: | 100 public: |
101 explicit AstNode(TokenPosition token_pos) | 101 explicit AstNode(TokenPosition token_pos) |
102 : token_pos_(token_pos) { | 102 : token_pos_(token_pos) { |
103 ASSERT(!token_pos_.IsClassifying() || | 103 ASSERT(!token_pos_.IsClassifying() || |
104 (token_pos_ == TokenPosition::kMethodExtractor)); | 104 (token_pos_ == TokenPosition::kMethodExtractor)); |
105 } | 105 } |
106 virtual ~AstNode() { } | 106 virtual ~AstNode() { } |
107 | 107 |
108 TokenPosition token_pos() const { return token_pos_; } | 108 TokenPosition token_pos() const { return token_pos_; } |
109 | 109 |
110 #define AST_TYPE_CHECK(BaseName) \ | 110 #define AST_TYPE_CHECK(BaseName) \ |
111 bool Is##BaseName##Node() { return As##BaseName##Node() != NULL; } \ | 111 bool Is##BaseName##Node() { return As##BaseName##Node() != NULL; } \ |
112 virtual BaseName##Node* As##BaseName##Node() { return NULL; } | 112 virtual BaseName##Node* As##BaseName##Node() { return NULL; } |
113 | 113 |
114 FOR_EACH_NODE(AST_TYPE_CHECK) | 114 FOR_EACH_NODE(AST_TYPE_CHECK) |
115 #undef AST_TYPE_CHECK | 115 #undef AST_TYPE_CHECK |
116 | 116 |
117 virtual void Visit(AstNodeVisitor* visitor) = 0; | 117 virtual void Visit(AstNodeVisitor* visitor) = 0; |
118 virtual void VisitChildren(AstNodeVisitor* visitor) const = 0; | 118 virtual void VisitChildren(AstNodeVisitor* visitor) const = 0; |
119 virtual const char* PrettyName() const = 0; | 119 virtual const char* Name() const = 0; |
120 | 120 |
121 // Convert the node into an assignment node using the rhs which is passed in, | 121 // Convert the node into an assignment node using the rhs which is passed in, |
122 // this is typically used for converting nodes like LoadLocalNode, | 122 // this is typically used for converting nodes like LoadLocalNode, |
123 // LoadStaticFieldNode, InstanceGetterNode etc. which were created during | 123 // LoadStaticFieldNode, InstanceGetterNode etc. which were created during |
124 // parsing as the assignment context was not known yet at that time. | 124 // parsing as the assignment context was not known yet at that time. |
125 virtual AstNode* MakeAssignmentNode(AstNode* rhs) { | 125 virtual AstNode* MakeAssignmentNode(AstNode* rhs) { |
126 return NULL; // By default all nodes are not assignable. | 126 return NULL; // By default all nodes are not assignable. |
127 } | 127 } |
128 | 128 |
129 // Return NULL if 'unary_op_kind' can't be applied. | 129 // Return NULL if 'unary_op_kind' can't be applied. |
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2035 const intptr_t try_index_; | 2035 const intptr_t try_index_; |
2036 | 2036 |
2037 DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode); | 2037 DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode); |
2038 }; | 2038 }; |
2039 | 2039 |
2040 } // namespace dart | 2040 } // namespace dart |
2041 | 2041 |
2042 #undef DECLARE_COMMON_NODE_FUNCTIONS | 2042 #undef DECLARE_COMMON_NODE_FUNCTIONS |
2043 | 2043 |
2044 #endif // VM_AST_H_ | 2044 #endif // VM_AST_H_ |
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