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Strict property initialization checks in classes #20075

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Merged
ahejlsberg merged 19 commits into from
Nov 20, 2017
Merged

Strict property initialization checks in classes #20075

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f1762a0
Attach return control flow graph to contructor declaration nodes
ahejlsberg Nov 16, 2017
5f6d7f3
Add strict property initialization checks
ahejlsberg Nov 16, 2017
c11969f
Mark returnFlowNode property as internal
ahejlsberg Nov 16, 2017
8cbff01
Add --strictPropertyInitialization compiler option
ahejlsberg Nov 16, 2017
3357aae
Update tests
ahejlsberg Nov 16, 2017
3a7a99f
Accept new baselines
ahejlsberg Nov 16, 2017
190f99e
Exclude static properties
ahejlsberg Nov 17, 2017
041d045
Revise return control flow graph construction logic
ahejlsberg Nov 17, 2017
4141a37
Add tests
ahejlsberg Nov 17, 2017
49d6ddf
Accept new baselines
ahejlsberg Nov 17, 2017
85ea473
Exclude abstract properties from strict initialization checks
ahejlsberg Nov 17, 2017
20b21d3
Add test
ahejlsberg Nov 17, 2017
6ba8c57
Accept new baselines
ahejlsberg Nov 17, 2017
86871c7
Fix lint error
ahejlsberg Nov 17, 2017
8c4c529
Merge branch 'master' into strictPropertyInitialization
ahejlsberg Nov 17, 2017
dccf57f
Simplify checkPropertyAccessExpressionOrQualifiedName
ahejlsberg Nov 18, 2017
0fbf36c
Add definite assignment checks for property accesses in constructor body
ahejlsberg Nov 18, 2017
82fd5a8
Add test
ahejlsberg Nov 18, 2017
87a8d41
Accept new baselines
ahejlsberg Nov 18, 2017
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Accept new baselines
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@ahejlsberg
ahejlsberg committed Nov 17, 2017
commit 6ba8c57d97afdf78c76c90c8857cf07329eb8893
9 changes: 9 additions & 0 deletions tests/baselines/reference/strictPropertyInitialization.errors.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -87,4 +87,13 @@ tests/cases/conformance/classes/propertyMemberDeclarations/strictPropertyInitial
"b": number;
0: number;
}

// No strict initialization checks for abstract members

abstract class C9 {
abstract a: number;
abstract b: number | undefined;
abstract c: number | null;
abstract d?: number;
}

21 changes: 21 additions & 0 deletions tests/baselines/reference/strictPropertyInitialization.js
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Expand Up @@ -73,6 +73,15 @@ class C8 {
"b": number;
0: number;
}

// No strict initialization checks for abstract members

abstract class C9 {
abstract a: number;
abstract b: number | undefined;
abstract c: number | null;
abstract d?: number;
}


//// [strictPropertyInitialization.js]
Expand Down Expand Up @@ -131,6 +140,12 @@ var C8 = /** @class */ (function () {
}
return C8;
}());
// No strict initialization checks for abstract members
var C9 = /** @class */ (function () {
function C9() {
}
return C9;
}());


//// [strictPropertyInitialization.d.ts]
Expand Down Expand Up @@ -174,3 +189,9 @@ declare class C8 {
"b": number;
0: number;
}
declare abstract class C9 {
abstract a: number;
abstract b: number | undefined;
abstract c: number | null;
abstract d?: number;
}
18 changes: 18 additions & 0 deletions tests/baselines/reference/strictPropertyInitialization.symbols
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Expand Up @@ -145,3 +145,21 @@ class C8 {
0: number;
}

// No strict initialization checks for abstract members

abstract class C9 {
>C9 : Symbol(C9, Decl(strictPropertyInitialization.ts, 73, 1))

abstract a: number;
>a : Symbol(C9.a, Decl(strictPropertyInitialization.ts, 77, 19))

abstract b: number | undefined;
>b : Symbol(C9.b, Decl(strictPropertyInitialization.ts, 78, 23))

abstract c: number | null;
>c : Symbol(C9.c, Decl(strictPropertyInitialization.ts, 79, 35))

abstract d?: number;
>d : Symbol(C9.d, Decl(strictPropertyInitialization.ts, 80, 30))
}

19 changes: 19 additions & 0 deletions tests/baselines/reference/strictPropertyInitialization.types
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Original file line number Diff line number Diff line change
Expand Up @@ -159,3 +159,22 @@ class C8 {
0: number;
}

// No strict initialization checks for abstract members

abstract class C9 {
>C9 : C9

abstract a: number;
>a : number

abstract b: number | undefined;
>b : number | undefined

abstract c: number | null;
>c : number | null
>null : null

abstract d?: number;
>d : number | undefined
}