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change class inheritance code #12488

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merged 9 commits into from
Jan 3, 2017
Merged

change class inheritance code #12488

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9e6a83d
change class inheritance code
vvakame Nov 24, 2016
7ea3734
address feedback
vvakame Nov 25, 2016
570575a
address #12622
vvakame Dec 3, 2016
5e57507
Merge branch 'master' into modify-extends
vvakame Dec 8, 2016
074f2b7
catch up
vvakame Dec 8, 2016
c09a8c9
address review comment
vvakame Dec 8, 2016
a89bb82
address feedback
vvakame Dec 31, 2016
c691269
Merge branch 'master' into modify-extends
vvakame Dec 31, 2016
4affef2
update baselines
vvakame Dec 31, 2016
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6 changes: 5 additions & 1 deletion src/compiler/transformers/es2015.ts
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Expand Up @@ -3337,8 +3337,12 @@ namespace ts {
scoped: false,
priority: 0,
text: `
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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I think this is our first helper that is depended on by another helper. Additionally, if we port this to tslib, you have a strange issue which is that even if you create your own __extendStatics helper, you can't change the behavior of an already-imported __extends helper.

This is because even after you import your helper, __extendStatics will have been captured by __extends's closure within tslib.

Thoughts @mhegazy & @rbuckton?

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good point. then we do not need the (this && this.__extendStatics) part?

You can always override the __extends behavior, so it is not that we are restricting access t this functionality.

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If you are using --importHelpers then you can't override any imported helper in any case.

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You would need the (this && this.__extendStatics) just like any other helper for when --importHelpers is not present, and this needs to be added to tslib.

var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};`
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6 changes: 5 additions & 1 deletion ...assWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js
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Expand Up @@ -21,8 +21,12 @@ module A {


//// [ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js
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Expand Up @@ -25,8 +25,12 @@ module A {


//// [ExportClassWithInaccessibleTypeInTypeParameterConstraint.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/abstractClassInLocalScope.js
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Expand Up @@ -8,8 +8,12 @@


//// [abstractClassInLocalScope.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js
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Expand Up @@ -8,8 +8,12 @@


//// [abstractClassInLocalScopeIsAbstract.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/abstractProperty.js
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Expand Up @@ -22,8 +22,12 @@ class C extends B {
}

//// [abstractProperty.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/abstractPropertyNegative.js
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Expand Up @@ -44,8 +44,12 @@ abstract class AbstractAccessorMismatch {


//// [abstractPropertyNegative.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/accessOverriddenBaseClassMember1.js
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Expand Up @@ -16,8 +16,12 @@ class ColoredPoint extends Point {


//// [accessOverriddenBaseClassMember1.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/accessors_spec_section-4.5_inference.js
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Expand Up @@ -25,8 +25,12 @@ class LanguageSpec_section_4_5_inference {
}

//// [accessors_spec_section-4.5_inference.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInAccessorsOfClass.js
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Expand Up @@ -37,8 +37,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsage1_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInArray.js
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Expand Up @@ -31,8 +31,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInArray_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInFunctionExpression.js
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Expand Up @@ -30,8 +30,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInFunctionExpression_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInGenericFunction.js
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Expand Up @@ -34,8 +34,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInGenericFunction_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInIndexerOfClass.js
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Expand Up @@ -36,8 +36,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInIndexerOfClass_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInObjectLiteral.js
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Expand Up @@ -31,8 +31,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInObjectLiteral_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInOrExpression.js
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Expand Up @@ -34,8 +34,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInOrExpression_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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12 changes: 10 additions & 2 deletions tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js
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Expand Up @@ -34,8 +34,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInTypeArgumentOfExtendsClause_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
Expand All @@ -50,8 +54,12 @@ var VisualizationModel = (function (_super) {
exports.VisualizationModel = VisualizationModel;
//// [aliasUsageInTypeArgumentOfExtendsClause_main.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/aliasUsageInVarAssignment.js
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Expand Up @@ -30,8 +30,12 @@ var Model = (function () {
exports.Model = Model;
//// [aliasUsageInVarAssignment_moduleA.js]
"use strict";
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/ambiguousOverloadResolution.js
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Expand Up @@ -9,8 +9,12 @@ var x: B;
var t: number = f(x, x); // Not an error

//// [ambiguousOverloadResolution.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/apparentTypeSubtyping.js
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Expand Up @@ -24,8 +24,12 @@ class Derived2<U extends String> extends Base2 { // error because of the prototy
//// [apparentTypeSubtyping.js]
// subtype checks use the apparent type of the target type
// S is a subtype of a type T, and T is a supertype of S, if one of the following is true, where S' denotes the apparent type (section 3.8.1) of S:
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/apparentTypeSupertype.js
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Expand Up @@ -14,8 +14,12 @@ class Derived<U extends String> extends Base { // error
//// [apparentTypeSupertype.js]
// subtype checks use the apparent type of the target type
// S is a subtype of a type T, and T is a supertype of S, if one of the following is true, where S' denotes the apparent type (section 3.8.1) of S:
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayAssignmentTest1.js
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Expand Up @@ -86,8 +86,12 @@ arr_any = c3; // should be an error - is
arr_any = i1; // should be an error - is

//// [arrayAssignmentTest1.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayAssignmentTest2.js
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Expand Up @@ -60,8 +60,12 @@ arr_any = i1; // should be an error - is


//// [arrayAssignmentTest2.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayBestCommonTypes.js
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Expand Up @@ -108,8 +108,12 @@ module NonEmptyTypes {


//// [arrayBestCommonTypes.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayLiteralTypeInference.js
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Expand Up @@ -52,8 +52,12 @@ var z3: { id: number }[] =


//// [arrayLiteralTypeInference.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayLiterals.js
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Expand Up @@ -38,8 +38,12 @@ var context4: Base[] = [new Derived1(), new Derived1()];

//// [arrayLiterals.js]
// Empty array literal with no contextual type has type Undefined[]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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6 changes: 5 additions & 1 deletion tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js
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Expand Up @@ -26,8 +26,12 @@ var myDerivedList: DerivedList<number>;
var as = [list, myDerivedList]; // List<number>[]

//// [arrayLiteralsWithRecursiveGenerics.js]
var __extendStatics = (this && this.__extendStatics) ||
Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
__extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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