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fix #27631, get/set methods no longer shadow index operator
R=rnystrom@google.com Review URL: https://codereview.chromium.org/2435163002 .
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@ -4481,7 +4481,10 @@ class CodeGenerator extends GeneralizingAstVisitor
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context: expr);
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}
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return _emitSend(expr, op.lexeme[0], []);
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var operatorName = op.lexeme;
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// Use the name from the Dart spec.
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if (operatorName == '-') operatorName = 'unary-';
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return _emitSend(expr, operatorName, []);
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}
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// Cascades can contain [IndexExpression], [MethodInvocation] and
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@ -4714,7 +4717,7 @@ class CodeGenerator extends GeneralizingAstVisitor
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JS.Expression _emitSend(
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Expression target, String name, List<Expression> args) {
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var type = getStaticType(target);
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var memberName = _emitMemberName(name, unary: args.isEmpty, type: type);
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var memberName = _emitMemberName(name, type: type);
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if (isDynamicInvoke(target)) {
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if (_inWhitelistCode(target)) {
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var vars = <JS.MetaLetVariable, JS.Expression>{};
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@ -5226,7 +5229,6 @@ class CodeGenerator extends GeneralizingAstVisitor
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}
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return _emitMemberName(name,
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type: (e.enclosingElement as ClassElement).type,
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unary: e.parameters.isEmpty,
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isStatic: e.isStatic,
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useExtension: useExtension);
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}
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@ -5266,17 +5268,13 @@ class CodeGenerator extends GeneralizingAstVisitor
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/// This follows the same pattern as ECMAScript 6 Map:
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/// <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map>
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///
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/// Unary minus looks like: `x['unary-']()`. Note that [unary] must be passed
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/// for this transformation to happen, otherwise binary minus is assumed.
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/// Unary minus looks like: `x._negate()`.
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///
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/// Equality is a bit special, it is generated via the Dart `equals` runtime
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/// helper, that checks for null. The user defined method is called '=='.
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///
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JS.Expression _emitMemberName(String name,
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{DartType type,
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bool unary: false,
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bool isStatic: false,
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bool useExtension}) {
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{DartType type, bool isStatic: false, bool useExtension}) {
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// Static members skip the rename steps.
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if (isStatic) return _propertyName(name);
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@ -5284,16 +5282,22 @@ class CodeGenerator extends GeneralizingAstVisitor
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return _emitPrivateNameSymbol(currentLibrary, name);
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}
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if (name == '[]') {
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name = 'get';
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} else if (name == '[]=') {
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name = 'set';
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} else if (name == '-' && unary) {
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name = 'unary-';
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} else if (name == 'constructor' || name == 'prototype') {
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// This uses an illegal (in Dart) character for a member, avoiding the
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// conflict. We could use practically any character for this.
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name = '+$name';
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// When generating synthetic names, we use _ as the prefix, since Dart names
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// won't have this (eliminated above), nor will static names reach here.
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switch (name) {
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case '[]':
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name = '_get';
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break;
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case '[]=':
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name = '_set';
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break;
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case 'unary-':
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name = '_negate';
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break;
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case 'constructor':
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case 'prototype':
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name = '_$name';
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break;
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}
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var result = _propertyName(name);
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@ -16,7 +16,7 @@ define(['dart_sdk'], function(dart_sdk) {
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dart.throw(dart.str`Lists have different lengths: ${expected[dartx.length]} vs ${actual[dartx.length]}`);
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}
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for (let i = 0; i < dart.notNull(actual[dartx.length]); i++) {
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BenchmarkBase$.Expect.equals(expected[dartx.get](i), actual[dartx.get](i));
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BenchmarkBase$.Expect.equals(expected[dartx._get](i), actual[dartx._get](i));
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}
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}
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fail(message) {
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@ -312,10 +312,10 @@ dsend(obj, method, @rest args) => _callMethod(obj, method, null, args, method);
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dgsend(obj, typeArgs, method, @rest args) =>
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_callMethod(obj, method, typeArgs, args, method);
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dindex(obj, index) => _callMethod(obj, 'get', null, JS('', '[#]', index), '[]');
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dindex(obj, index) => _callMethod(obj, '_get', null, JS('', '[#]', index), '[]');
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dsetindex(obj, index, value) =>
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_callMethod(obj, 'set', null, JS('', '[#, #]', index, value), '[]=');
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_callMethod(obj, '_set', null, JS('', '[#, #]', index, value), '[]=');
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/// TODO(leafp): This duplicates code in types.dart.
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/// I haven't found a way to factor it out that makes the
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@ -535,11 +535,11 @@ map(values, [K, V]) => JS(
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for (let i = 0, end = $values.length - 1; i < end; i += 2) {
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let key = $values[i];
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let value = $values[i + 1];
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map.set(key, value);
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map._set(key, value);
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}
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} else if (typeof $values === 'object') {
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for (let key of $getOwnPropertyNames($values)) {
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map.set(key, $values[key]);
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map._set(key, $values[key]);
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}
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}
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return map;
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