ef83109dbf
* Prefer a likely literal over anonymous type in --noImplicitAny codefixes
Before trying to make an anonymous type for a type's usage, we'll first check if there is exactly one builtin primitive the usage is assignable to, and use it if so. Right now that's only `number` and `string` because `boolean` has no distinguishable members.
A couple of implementation details:
* `tryInsertTypeAnnotation` needed to know to insert a type _after_ a node's `exclamationToken` if it exists
* This code area was written before `??` 😉
* Used unknown/any instead of void when applicable
* Fix little whitespace change in tests/cases/fourslash/codeFixInferFromUsagePropertyAccessJS.ts
* Undid some now-unnecessary unknown additions
* Took advice on restricting void to just call expressions
39 lines
691 B
TypeScript
39 lines
691 B
TypeScript
/// <reference path='fourslash.ts' />
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// @allowJs: true
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// @checkJs: true
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// @noImplicitAny: true
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// @Filename: important.js
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////function foo([|a, m, x|]) {
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//// a.b.c;
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////
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//// var numeric = 0;
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//// numeric = m.n();
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////
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//// x.y.z
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//// x.y.z.push(0);
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//// return x.y.z
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////}
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verify.codeFix({
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description: "Infer parameter types from usage",
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index: 0,
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newFileContent:
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`/**
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* @param {{ b: { c: any; }; }} a
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* @param {{ n: () => number; }} m
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* @param {{ y: { z: number[]; }; }} x
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*/
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function foo(a, m, x) {
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a.b.c;
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var numeric = 0;
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numeric = m.n();
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x.y.z
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x.y.z.push(0);
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return x.y.z
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}`,
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});
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