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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| 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. | |
| 4 | |
| 5 library analyzer2dart.semantic_visitor; | |
| 6 | |
| 7 import 'package:analyzer/analyzer.dart'; | |
| 8 import 'package:analyzer/src/generated/source.dart'; | |
| 9 | |
| 10 import 'util.dart'; | |
| 11 import 'identifier_semantics.dart'; | |
| 12 | |
| 13 /// An AST visitor which uses the [AccessSemantics] of invocations and accesses | |
| 14 /// to fine-grain visitor methods. | |
| 15 abstract class SemanticVisitor<R> extends RecursiveAstVisitor<R> { | |
| 16 | |
| 17 Source get currentSource; | |
| 18 | |
| 19 void reportMessage(AstNode node, String message) { | |
| 20 reportSourceMessage(currentSource, node, message); | |
| 21 } | |
| 22 | |
| 23 giveUp(AstNode node, String message) { | |
| 24 reportMessage(node, message); | |
| 25 throw new UnimplementedError(message); | |
| 26 } | |
| 27 | |
| 28 bool invariant(AstNode node, condition, String message) { | |
| 29 if (condition is Function) { | |
| 30 condition = condition(); | |
| 31 } | |
| 32 if (!condition) { | |
| 33 reportMessage(node, message); | |
| 34 return false; | |
| 35 } | |
| 36 return true; | |
| 37 } | |
| 38 | |
| 39 R visitDynamicInvocation(MethodInvocation node, | |
| 40 AccessSemantics semantics) { | |
| 41 return giveUp(node, 'visitDynamicInvocation of $semantics'); | |
| 42 } | |
| 43 | |
| 44 R visitLocalFunctionInvocation(MethodInvocation node, | |
| 45 AccessSemantics semantics) { | |
| 46 return giveUp(node, 'visitLocalFunctionInvocation of $semantics'); | |
| 47 } | |
| 48 | |
| 49 R visitLocalVariableInvocation(MethodInvocation node, | |
| 50 AccessSemantics semantics) { | |
| 51 return giveUp(node, 'visitLocalVariableInvocation of $semantics'); | |
| 52 } | |
| 53 | |
| 54 R visitParameterInvocation(MethodInvocation node, | |
| 55 AccessSemantics semantics) { | |
| 56 return giveUp(node, 'visitParameterInvocation of $semantics'); | |
| 57 } | |
| 58 | |
| 59 R visitStaticFieldInvocation(MethodInvocation node, | |
| 60 AccessSemantics semantics) { | |
| 61 return giveUp(node, 'visitStaticFieldInvocation of $semantics'); | |
| 62 } | |
| 63 | |
| 64 R visitStaticMethodInvocation(MethodInvocation node, | |
| 65 AccessSemantics semantics) { | |
| 66 return giveUp(node, 'visitStaticMethodInvocation of $semantics'); | |
| 67 } | |
| 68 | |
| 69 R visitStaticPropertyInvocation(MethodInvocation node, | |
| 70 AccessSemantics semantics) { | |
| 71 return giveUp(node, 'visitStaticPropertyInvocation of $semantics'); | |
| 72 } | |
| 73 | |
| 74 @override | |
| 75 R visitMethodInvocation(MethodInvocation node) { | |
| 76 if (node.target != null) { | |
| 77 node.target.accept(this); | |
| 78 } | |
| 79 node.argumentList.accept(this); | |
| 80 return handleMethodInvocation(node); | |
| 81 } | |
| 82 | |
| 83 R handleMethodInvocation(MethodInvocation node) { | |
| 84 AccessSemantics semantics = node.accept(ACCESS_SEMANTICS_VISITOR); | |
| 85 switch (semantics.kind) { | |
| 86 case AccessKind.DYNAMIC: | |
| 87 return visitDynamicInvocation(node, semantics); | |
| 88 case AccessKind.LOCAL_FUNCTION: | |
| 89 return visitLocalFunctionInvocation(node, semantics); | |
| 90 case AccessKind.LOCAL_VARIABLE: | |
| 91 return visitLocalVariableInvocation(node, semantics); | |
| 92 case AccessKind.PARAMETER: | |
| 93 return visitParameterInvocation(node, semantics); | |
| 94 case AccessKind.STATIC_FIELD: | |
| 95 return visitStaticFieldInvocation(node, semantics); | |
| 96 case AccessKind.STATIC_METHOD: | |
| 97 return visitStaticMethodInvocation(node, semantics); | |
| 98 case AccessKind.STATIC_PROPERTY: | |
| 99 return visitStaticPropertyInvocation(node, semantics); | |
| 100 default: | |
| 101 // Unexpected access kind. | |
| 102 return giveUp(node, | |
| 103 'Unexpected ${semantics} in visitMethodInvocation.'); | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 @override | |
| 108 R visitPropertyAccess(PropertyAccess node) { | |
| 109 if (node.target != null) { | |
| 110 node.target.accept(this); | |
| 111 } | |
| 112 return handlePropertyAccess(node); | |
| 113 } | |
| 114 | |
| 115 R handlePropertyAccess(PropertyAccess node) { | |
| 116 return _handlePropertyAccess(node, node.accept(ACCESS_SEMANTICS_VISITOR)); | |
| 117 } | |
| 118 | |
| 119 @override | |
| 120 R visitPrefixedIdentifier(PrefixedIdentifier node) { | |
| 121 node.prefix.accept(this); | |
| 122 return handlePrefixedIdentifier(node); | |
| 123 } | |
| 124 | |
| 125 R handlePrefixedIdentifier(PrefixedIdentifier node) { | |
| 126 return _handlePropertyAccess(node, node.accept(ACCESS_SEMANTICS_VISITOR)); | |
| 127 } | |
| 128 | |
| 129 @override | |
| 130 R visitSimpleIdentifier(SimpleIdentifier node) { | |
| 131 AccessSemantics semantics = node.accept(ACCESS_SEMANTICS_VISITOR); | |
| 132 if (semantics != null) { | |
| 133 return _handlePropertyAccess(node, semantics); | |
| 134 } else { | |
| 135 return null; | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 R visitDynamicAccess(AstNode node, AccessSemantics semantics) { | |
| 140 return giveUp(node, 'visitDynamicAccess of $semantics'); | |
| 141 } | |
| 142 | |
| 143 R visitLocalFunctionAccess(AstNode node, AccessSemantics semantics) { | |
| 144 return giveUp(node, 'visitLocalFunctionAccess of $semantics'); | |
| 145 } | |
| 146 | |
| 147 R visitLocalVariableAccess(AstNode node, AccessSemantics semantics) { | |
| 148 return giveUp(node, 'visitLocalVariableAccess of $semantics'); | |
| 149 } | |
| 150 | |
| 151 R visitParameterAccess(AstNode node, AccessSemantics semantics) { | |
| 152 return giveUp(node, 'visitParameterAccess of $semantics'); | |
| 153 } | |
| 154 | |
| 155 R visitStaticFieldAccess(AstNode node, AccessSemantics semantics) { | |
| 156 return giveUp(node, 'visitStaticFieldAccess of $semantics'); | |
| 157 } | |
| 158 | |
| 159 R visitStaticMethodAccess(AstNode node, AccessSemantics semantics) { | |
| 160 return giveUp(node, 'visitStaticMethodAccess of $semantics'); | |
| 161 } | |
| 162 | |
| 163 R visitStaticPropertyAccess(AstNode node, AccessSemantics semantics) { | |
| 164 return giveUp(node, 'visitStaticPropertyAccess of $semantics'); | |
| 165 } | |
| 166 | |
| 167 R visitToplevelClassAccess(AstNode node, AccessSemantics semantics) { | |
| 168 return giveUp(node, 'visitToplevelClassAccess of $semantics'); | |
| 169 } | |
| 170 | |
| 171 R visitTypeParameterAccess(AstNode node, AccessSemantics semantics) { | |
| 172 return giveUp(node, 'visitTypeParameterAccess of $semantics'); | |
| 173 } | |
| 174 | |
| 175 R _handlePropertyAccess(AstNode node, AccessSemantics semantics) { | |
| 176 switch (semantics.kind) { | |
| 177 case AccessKind.DYNAMIC: | |
| 178 return visitDynamicAccess(node, semantics); | |
| 179 case AccessKind.LOCAL_FUNCTION: | |
| 180 return visitLocalFunctionAccess(node, semantics); | |
| 181 case AccessKind.LOCAL_VARIABLE: | |
| 182 return visitLocalVariableAccess(node, semantics); | |
| 183 case AccessKind.PARAMETER: | |
| 184 return visitParameterAccess(node, semantics); | |
| 185 case AccessKind.STATIC_FIELD: | |
| 186 return visitStaticFieldAccess(node, semantics); | |
| 187 case AccessKind.STATIC_METHOD: | |
| 188 return visitStaticMethodAccess(node, semantics); | |
| 189 case AccessKind.STATIC_PROPERTY: | |
| 190 return visitStaticPropertyAccess(node, semantics); | |
| 191 case AccessKind.TOPLEVEL_TYPE: | |
| 192 return visitToplevelClassAccess(node, semantics); | |
| 193 case AccessKind.TYPE_PARAMETER: | |
| 194 return visitTypeParameterAccess(node, semantics); | |
| 195 default: | |
| 196 // Unexpected access kind. | |
| 197 return giveUp(node, | |
| 198 'Unexpected ${semantics} in _handlePropertyAccess.'); | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 R visitDynamicPropertyAssignment(AssignmentExpression node, | |
| 203 AccessSemantics semantics) { | |
| 204 return giveUp(node, 'visitDynamicPropertyAssignment of $semantics'); | |
| 205 } | |
| 206 | |
| 207 R visitLocalFunctionAssignment(AssignmentExpression node, | |
| 208 AccessSemantics semantics) { | |
| 209 return giveUp(node, 'visitLocalFunctionAssignment of $semantics'); | |
| 210 } | |
| 211 | |
| 212 R visitLocalVariableAssignment(AssignmentExpression node, | |
| 213 AccessSemantics semantics) { | |
| 214 return giveUp(node, 'visitLocalVariableAssignment of $semantics'); | |
| 215 } | |
| 216 | |
| 217 R visitParameterAssignment(AssignmentExpression node, | |
| 218 AccessSemantics semantics) { | |
| 219 return giveUp(node, 'visitParameterAssignment of $semantics'); | |
| 220 } | |
| 221 | |
| 222 R visitStaticFieldAssignment(AssignmentExpression node, | |
| 223 AccessSemantics semantics) { | |
| 224 return giveUp(node, 'visitStaticFieldAssignment of $semantics'); | |
| 225 } | |
| 226 | |
| 227 R visitStaticMethodAssignment(AssignmentExpression node, | |
| 228 AccessSemantics semantics) { | |
| 229 return giveUp(node, 'visitStaticMethodAssignment of $semantics'); | |
| 230 } | |
| 231 | |
| 232 R visitStaticPropertyAssignment(AssignmentExpression node, | |
| 233 AccessSemantics semantics) { | |
| 234 return giveUp(node, 'visitStaticPropertyAssignment of $semantics'); | |
| 235 } | |
| 236 | |
| 237 @override | |
| 238 R visitAssignmentExpression(AssignmentExpression node) { | |
| 239 super.visitAssignmentExpression(node); | |
| 240 return handleAssignmentExpression(node); | |
| 241 } | |
| 242 | |
| 243 R handleAssignmentExpression(AssignmentExpression node) { | |
| 244 AccessSemantics semantics = | |
| 245 node.leftHandSide.accept(ACCESS_SEMANTICS_VISITOR); | |
| 246 if (semantics == null) { | |
| 247 return giveUp(node, 'handleAssignmentExpression with no AccessSemantics'); | |
| 248 } else { | |
| 249 switch (semantics.kind) { | |
| 250 case AccessKind.DYNAMIC: | |
| 251 return visitDynamicPropertyAssignment(node, semantics); | |
| 252 case AccessKind.LOCAL_FUNCTION: | |
| 253 return visitLocalFunctionAssignment(node, semantics); | |
| 254 case AccessKind.LOCAL_VARIABLE: | |
| 255 return visitLocalVariableAssignment(node, semantics); | |
| 256 case AccessKind.PARAMETER: | |
| 257 return visitParameterAssignment(node, semantics); | |
| 258 case AccessKind.STATIC_FIELD: | |
| 259 return visitStaticFieldAssignment(node, semantics); | |
| 260 case AccessKind.STATIC_METHOD: | |
| 261 return visitStaticMethodAssignment(node, semantics); | |
| 262 case AccessKind.STATIC_PROPERTY: | |
| 263 return visitStaticPropertyAssignment(node, semantics); | |
| 264 default: | |
| 265 // Unexpected access kind. | |
| 266 return giveUp(node, | |
| 267 'Unexpected ${semantics} in _handlePropertyAccess.'); | |
| 268 } | |
| 269 } | |
| 270 } | |
| 271 } | |
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Chromium Code Reviews
Issue 2037123002:
Cleanup: remove package "analyzer2dart". (Closed)
Base URL: git@github.com:dart-lang/sdk.git@master