67 lines
1.2 KiB
TypeScript
67 lines
1.2 KiB
TypeScript
// @allowJs: true
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// @checkJs: true
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// @noEmit: true
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// @strictNullChecks: true
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// @noImplicitAny: true
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// @Filename: a.js
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function A () {
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// should get any on this-assignments in constructor
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this.unknown = null
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this.unknowable = undefined
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this.empty = []
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}
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var a = new A()
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a.unknown = 1
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a.unknown = true
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a.unknown = {}
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a.unknown = 'hi'
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a.unknowable = 1
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a.unknowable = true
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a.unknowable = {}
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a.unknowable = 'hi'
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a.empty.push(1)
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a.empty.push(true)
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a.empty.push({})
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a.empty.push('hi')
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/** @type {number | undefined} */
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var n;
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// should get any on parameter initialisers
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function f(a = null, b = n, l = []) {
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// a should be null in strict mode
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a = undefined
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a = null
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a = 1
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a = true
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a = {}
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a = 'ok'
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// b should be number | undefined, not any
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b = 1
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b = undefined
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b = 'error'
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// l should be any[]
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l.push(1)
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l.push('ok')
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}
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// should get any on variable initialisers
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var u = undefined;
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var l = [];
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u = undefined
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u = 1
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u = true
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u = {}
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u = 'ok'
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l.push('ok')
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/** @type {(v: unknown) => v is undefined} */
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const isUndef = v => v === undefined;
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const e = [1, undefined];
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// should be undefined[]
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const g = e.filter(isUndef);
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