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Side by Side Diff: pkg/compiler/lib/src/elements/modelx.dart

Issue 1318043005: Support user generated custom native JS classes. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: ptal Created 5 years, 3 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, 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 library elements.modelx; 5 library elements.modelx;
6 6
7 import '../compiler.dart' show 7 import '../compiler.dart' show
8 Compiler; 8 Compiler;
9 import '../constants/constant_constructors.dart'; 9 import '../constants/constant_constructors.dart';
10 import '../constants/constructors.dart'; 10 import '../constants/constructors.dart';
(...skipping 207 matching lines...) Expand 10 before | Expand all | Expand 10 after
218 ? enclosingElement.name 218 ? enclosingElement.name
219 : '${enclosingElement.kind}?'; 219 : '${enclosingElement.kind}?';
220 return '$kind($holderName#${nameText})'; 220 return '$kind($holderName#${nameText})';
221 } else { 221 } else {
222 return '$kind(${nameText})'; 222 return '$kind(${nameText})';
223 } 223 }
224 } 224 }
225 225
226 String _fixedBackendName = null; 226 String _fixedBackendName = null;
227 bool _isNative = false; 227 bool _isNative = false;
228 bool get isNative => _isNative; 228 String _jsInteropName = null;
229 bool get hasFixedBackendName => _fixedBackendName != null; 229
230 String get fixedBackendName => _fixedBackendName; 230 bool get isJsInterop => _jsInteropName != null;
231
232 void setJsInterop(String name) { _jsInteropName = name; }
233
234 bool get isNative => _isNative || isJsInterop;
235 bool get hasFixedBackendName => fixedBackendName != null || isJsInterop;
236
237 String get fixedBackendName {
238 if (_fixedBackendName != null) return _fixedBackendName;
239 if (isJsInterop) {
240 String nameHelper(e) {
241 if (e._jsInteropName != null && e._jsInteropName.isNotEmpty)
242 return e._jsInteropName;
243 return e.isLibrary ? 'self' : e.name;
244 }
245
246 var sb = new StringBuffer();
247 if (!isLibrary && !isInstanceMember) {
248 sb..write(nameHelper(library))..write('.');
249 if (enclosingClass != null && enclosingClass != this) {
250 sb.write(nameHelper(enclosingClass));
251 if (!isConstructor) sb.write('.');
252 }
253 }
254 if (!isConstructor) sb.write(nameHelper(this));
Siggi Cherem (dart-lang) 2015/09/18 20:34:10 are named constructors not supported?
Jacob 2015/10/01 00:47:33 they are supported. Suppose you have a JavaScript
255 return sb.toString();
256 }
257 return null;
258 }
259
231 // Marks this element as a native element. 260 // Marks this element as a native element.
232 void setNative(String name) { 261 void setNative(String name) {
233 _isNative = true; 262 _isNative = true;
234 _fixedBackendName = name; 263 _fixedBackendName = name;
235 } 264 }
236 265
237 FunctionElement asFunctionElement() => null; 266 FunctionElement asFunctionElement() => null;
238 267
239 bool get isAbstract => modifiers.isAbstract; 268 bool get isAbstract => modifiers.isAbstract;
240 269
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1795 }); 1824 });
1796 return functionSignatureCache; 1825 return functionSignatureCache;
1797 } 1826 }
1798 1827
1799 FunctionSignature get functionSignature { 1828 FunctionSignature get functionSignature {
1800 assert(invariant(this, functionSignatureCache != null, 1829 assert(invariant(this, functionSignatureCache != null,
1801 message: "Function signature has not been computed for $this.")); 1830 message: "Function signature has not been computed for $this."));
1802 return functionSignatureCache; 1831 return functionSignatureCache;
1803 } 1832 }
1804 1833
1834 /**
1835 * An function is part of JsInterop if it has a jsInteropName annotation or it
1836 * is an external class or top level member of a class or library tagged as
1837 * JsInterop.
1838 */
1839 bool get isJsInterop {
1840 if (super.isJsInterop) return true;
Siggi Cherem (dart-lang) 2015/09/18 20:34:10 are there any cases where this is true if the two
Jacob 2015/10/01 00:47:33 yes. super.isJsInterop checks whether the member i
1841 if (isClassMember) return contextClass.isJsInterop && isExternal;
Siggi Cherem (dart-lang) 2015/09/18 20:34:10 it might be worth checking for isExternal upfront,
Jacob 2015/10/01 00:47:33 done.
1842 if (isTopLevel) return library.isJsInterop && isExternal;
1843 return false;
1844 }
1845
1805 List<ParameterElement> get parameters { 1846 List<ParameterElement> get parameters {
1806 // TODO(johnniwinther): Store the list directly, possibly by using List 1847 // TODO(johnniwinther): Store the list directly, possibly by using List
1807 // instead of Link in FunctionSignature. 1848 // instead of Link in FunctionSignature.
1808 List<ParameterElement> list = <ParameterElement>[]; 1849 List<ParameterElement> list = <ParameterElement>[];
1809 functionSignature.forEachParameter((e) => list.add(e)); 1850 functionSignature.forEachParameter((e) => list.add(e));
1810 return list; 1851 return list;
1811 } 1852 }
1812 1853
1813 FunctionType computeType(Compiler compiler) { 1854 FunctionType computeType(Compiler compiler) {
1814 if (typeCache != null) return typeCache; 1855 if (typeCache != null) return typeCache;
(...skipping 597 matching lines...) Expand 10 before | Expand all | Expand 10 after
2412 } 2453 }
2413 2454
2414 void forEachBackendMember(void f(Element member)) { 2455 void forEachBackendMember(void f(Element member)) {
2415 backendMembers.forEach(f); 2456 backendMembers.forEach(f);
2416 } 2457 }
2417 2458
2418 bool implementsFunction(Compiler compiler) { 2459 bool implementsFunction(Compiler compiler) {
2419 return asInstanceOf(compiler.functionClass) != null || callType != null; 2460 return asInstanceOf(compiler.functionClass) != null || callType != null;
2420 } 2461 }
2421 2462
2422 bool get isNative => nativeTagInfo != null; 2463 bool get isNative => nativeTagInfo != null || isJsInterop;
2423 2464
2424 void setNative(String name) { 2465 void setNative(String name) {
2425 // TODO(johnniwinther): Assert that this is only called once. The memory 2466 // TODO(johnniwinther): Assert that this is only called once. The memory
2426 // compiler copies pre-processed elements into a new compiler through 2467 // compiler copies pre-processed elements into a new compiler through
2427 // [Compiler.onLibraryScanned] and thereby causes multiple calls to this 2468 // [Compiler.onLibraryScanned] and thereby causes multiple calls to this
2428 // method. 2469 // method.
2429 assert(invariant(this, nativeTagInfo == null || nativeTagInfo == name, 2470 assert(invariant(this, nativeTagInfo == null || nativeTagInfo == name,
2430 message: "Native tag info set inconsistently on $this: " 2471 message: "Native tag info set inconsistently on $this: "
2431 "Existing name '$nativeTagInfo', new name '$name'.")); 2472 "Existing name '$nativeTagInfo', new name '$name'."));
2432 nativeTagInfo = name; 2473 nativeTagInfo = name;
(...skipping 481 matching lines...) Expand 10 before | Expand all | Expand 10 after
2914 AstElement get definingElement; 2955 AstElement get definingElement;
2915 2956
2916 bool get hasResolvedAst => definingElement.hasTreeElements; 2957 bool get hasResolvedAst => definingElement.hasTreeElements;
2917 2958
2918 ResolvedAst get resolvedAst { 2959 ResolvedAst get resolvedAst {
2919 return new ResolvedAst(declaration, 2960 return new ResolvedAst(declaration,
2920 definingElement.node, definingElement.treeElements); 2961 definingElement.node, definingElement.treeElements);
2921 } 2962 }
2922 2963
2923 } 2964 }
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