mirror of
https://github.com/dart-lang/sdk
synced 2024-09-16 04:27:17 +00:00
397ed8673c
Suppose we have code like
if (isDevMode) {
// do foo
} else {
// do bar
}
where isDevMode is const (or can be evaluated as const). In particular,
isDevMode can be controlled by compile-time options, like
bool.fromEnvironment.
We currently eliminate the dead branch during SSA, but that means we do
the work of compiling dead code in the previous phases. Instead, we can
recognize that the condition is const (or effectively const) and
eliminate the dead AST subtree directly.
Change-Id: Ia91da5ebc7fa496a1b963308c6e02d572cab936e
Bug: b/254543452
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/270281
Reviewed-by: Sigmund Cherem <sigmund@google.com>
272 lines
8.8 KiB
Dart
272 lines
8.8 KiB
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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// TODO(johnniwinther): Share this test with ddc.
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// Test for positive and negative uses of js-interop declarations in a library
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// _without_ a @JS() anntaotion. This file is also used in
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// tests/compiler/dart2js/model/native_test.dart.
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library lib;
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import 'package:js/js.dart';
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var topLevelField;
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get topLevelGetter => null;
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set topLevelSetter(_) {}
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topLevelFunction() {}
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@JS('a') // JS_INTEROP_FIELD_NOT_SUPPORTED //# 01: compile-time error
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var topLevelJsInteropField; //# 01: continued
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@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER //# 02: compile-time error
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get topLevelJsInteropGetter => null; //# 02: continued
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@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER //# 03: compile-time error
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set topLevelJsInteropSetter(_) {} //# 03: continued
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@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER //# 04: compile-time error
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topLevelJsInteropFunction() {} //# 04: continued
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// GENERIC //# 05: compile-time error
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external get externalTopLevelGetter; //# 05: continued
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// GENERIC //# 06: compile-time error
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external set externalTopLevelSetter(_); //# 06: continued
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// GENERIC //# 07: compile-time error
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external externalTopLevelFunction(); //# 07: continued
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@JS('a')
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external get externalTopLevelJsInteropGetter;
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@JS('b')
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external set externalTopLevelJsInteropSetter(_);
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@JS('c')
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external externalTopLevelJsInteropFunction();
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class Class {
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Class.generative();
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factory Class.fact() => null as dynamic;
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// GENERIC //# 08: compile-time error
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external Class.externalGenerative(); //# 08: continued
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// GENERIC //# 09: compile-time error
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external factory Class.externalFact(); //# 09: continued
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@JS('a') // GENERIC //# 11: compile-time error
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factory Class.jsInteropFact() => null; //# 11: continued
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@JS('a') // GENERIC //# 12: compile-time error
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external Class.externalJsInteropGenerative(); //# 12: continued
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@JS('a') // GENERIC //# 13: compile-time error
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external factory Class.externalJsInteropFact(); //# 13: continued
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var instanceField;
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get instanceGetter => null;
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set instanceSetter(_) {}
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instanceMethod() {}
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static var staticField;
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static get staticGetter => null;
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static set staticSetter(_) {}
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static staticMethod() {}
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@JS('a') // GENERIC //# 14: compile-time error
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var instanceJsInteropField; //# 14: continued
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@JS('a') // GENERIC //# 15: compile-time error
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get instanceJsInteropGetter => null; //# 15: continued
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@JS('a') // GENERIC //# 16: compile-time error
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set instanceJsInteropSetter(_) {} //# 16: continued
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@JS('a') // GENERIC //# 17: compile-time error
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instanceJsInteropMethod() {} //# 17: continued
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@JS('a') // GENERIC //# 18: compile-time error
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static var staticJsInteropField; //# 18: continued
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@JS('a') // GENERIC //# 19: compile-time error
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static get staticJsInteropGetter => null; //# 19: continued
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@JS('a') // GENERIC //# 20: compile-time error
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static set staticJsInteropSetter(_) {} //# 20: continued
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@JS('a') // GENERIC //# 21: compile-time error
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static staticJsInteropMethod() {} //# 21: continued
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// GENERIC //# 22: compile-time error
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external get externalInstanceGetter; //# 22: continued
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// GENERIC //# 23: compile-time error
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external set externalInstanceSetter(_); //# 23: continued
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// GENERIC //# 24: compile-time error
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external externalInstanceMethod(); //# 24: continued
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// GENERIC //# 25: compile-time error
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external static get externalStaticGetter; //# 25: continued
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// GENERIC //# 26: compile-time error
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external static set externalStaticSetter(_); //# 26: continued
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// GENERIC //# 27: compile-time error
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external static externalStaticMethod(); //# 27: continued
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@JS('a') // GENERIC //# 28: compile-time error
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external get externalInstanceJsInteropGetter; //# 28: continued
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@JS('a') // GENERIC //# 29: compile-time error
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external set externalInstanceJsInteropSetter(_); //# 29: continued
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@JS('a') // GENERIC //# 30: compile-time error
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external externalInstanceJsInteropMethod(); //# 30: continued
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@JS('a') // GENERIC //# 31: compile-time error
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external static get externalStaticJsInteropGetter; //# 31: continued
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@JS('a') // GENERIC //# 32: compile-time error
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external static set externalStaticJsInteropSetter(_); //# 32: continued
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@JS('a') // GENERIC //# 33: compile-time error
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external static externalStaticJsInteropMethod(); //# 33: continued
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}
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@JS('d')
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class JsInteropClass {
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// GENERIC //# 34: compile-time error
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JsInteropClass.generative(); //# 34: continued
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// JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 35: compile-time error
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factory JsInteropClass.fact() => null; //# 35: continued
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external JsInteropClass.externalGenerative();
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external factory JsInteropClass.externalFact();
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@JS('a') // GENERIC //# 36: compile-time error
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JsInteropClass.jsInteropGenerative(); //# 36: continued
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@JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 37: compile-time error
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factory JsInteropClass.jsInteropFact() => null; //# 37: continued
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@JS('a')
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external JsInteropClass.externalJsInteropGenerative();
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@JS('a')
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external factory JsInteropClass.externalJsInteropFact();
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// IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 38: compile-time error
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var instanceField; //# 38: continued
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// GENERIC //# 39: compile-time error
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get instanceGetter => null; //# 39: continued
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// GENERIC //# 40: compile-time error
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set instanceSetter(_) {} //# 40: continued
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// GENERIC //# 41: compile-time error
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instanceMethod() {} //# 41: continued
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// IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 42: compile-time error
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static var staticField; //# 42: continued
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// JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 43: compile-time error
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static get staticGetter => null; //# 43: continued
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// JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 44: compile-time error
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static set staticSetter(_) {} //# 44: continued
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// JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 45: compile-time error
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static staticMethod() {} //# 45: continued
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@JS('a') // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 46: compile-time error
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var instanceJsInteropField; //# 46: continued
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@JS('a') // GENERIC //# 48: compile-time error
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get instanceJsInteropGetter => null; //# 48: continued
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@JS('a') // GENERIC //# 49: compile-time error
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set instanceJsInteropSetter(_) {} //# 49: continued
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@JS('a') // GENERIC //# 50: compile-time error
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instanceJsInteropMethod() {} //# 50: continued
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@JS('a') // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 51: compile-time error
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static var staticJsInteropField; //# 51: continued
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@JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 52: compile-time error
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static get staticJsInteropGetter => null; //# 52: continued
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@JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 53: compile-time error
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static set staticJsInteropSetter(_) {} //# 53: continued
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@JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 54: compile-time error
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static staticJsInteropMethod() {} //# 54: continued
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external get externalInstanceGetter;
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external set externalInstanceSetter(_);
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external externalInstanceMethod();
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external static get externalStaticGetter;
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external static set externalStaticSetter(_);
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external static externalStaticMethod();
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@JS('a')
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external get externalInstanceJsInteropGetter;
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@JS('a')
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external set externalInstanceJsInteropSetter(_);
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@JS('a')
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external externalInstanceJsInteropMethod();
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@JS('a')
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external static get externalStaticJsInteropGetter;
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@JS('a')
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external static set externalStaticJsInteropSetter(_);
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@JS('a')
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external static externalStaticJsInteropMethod();
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}
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bool flag;
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main() {
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if (flag = false) {
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topLevelSetter = topLevelField = topLevelGetter;
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topLevelFunction();
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externalTopLevelJsInteropSetter = externalTopLevelJsInteropGetter;
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externalTopLevelJsInteropFunction();
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Class c1 = new Class.generative();
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new Class.fact();
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c1.instanceSetter = c1.instanceField = c1.instanceGetter;
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c1.instanceMethod();
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Class.staticSetter = Class.staticField = Class.staticGetter;
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Class.staticMethod();
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JsInteropClass c2 = new JsInteropClass.externalGenerative();
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new JsInteropClass.externalFact();
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new JsInteropClass.externalJsInteropGenerative();
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new JsInteropClass.externalJsInteropFact();
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c2.externalInstanceSetter = c2.externalInstanceGetter;
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c2.externalInstanceMethod();
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c2.externalInstanceJsInteropSetter = c2.externalInstanceJsInteropGetter;
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c2.externalInstanceJsInteropMethod();
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JsInteropClass.externalStaticSetter = JsInteropClass.externalStaticGetter;
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JsInteropClass.externalStaticMethod();
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JsInteropClass.externalStaticJsInteropSetter =
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JsInteropClass.externalStaticJsInteropGetter;
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JsInteropClass.externalStaticJsInteropMethod();
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}
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}
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