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feat: [4.7] support optional variance annotation #4831

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merged 12 commits into from May 19, 2022
Merged

feat: [4.7] support optional variance annotation #4831

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5d9f45f
feat(ast-spec): add `in` and `out` to `TSTypeParameter`
sosukesuzuki Apr 17, 2022
0a74ba8
feat(typescript-estree): add `in` and `out` to `TSTypeParameter`
sosukesuzuki Apr 17, 2022
0eb5560
test(typescript-estree): add tests for optional variance syntax
sosukesuzuki Apr 17, 2022
435f610
test(typescript-estree): update snapshots
sosukesuzuki Apr 17, 2022
1f0958f
fix(typescript-estree): use `hasModifier`
sosukesuzuki May 18, 2022
088d45c
test(typescript-estree): update snapshots
sosukesuzuki May 18, 2022
6cd5c7e
test(typescript-estree): fix for babel
sosukesuzuki May 18, 2022
96f0b45
fix(ast-spec): make `in` and `out` boolean
sosukesuzuki May 19, 2022
b630664
Merge branch 'main' into optional-variance
bradzacher May 19, 2022
03acdb3
fix spelling typo
bradzacher May 19, 2022
42d2c74
test(ast-spec): update snapshots
sosukesuzuki May 19, 2022
68c350b
test(typescript-estree): update snapshots
sosukesuzuki May 19, 2022
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2 changes: 2 additions & 0 deletions packages/ast-spec/src/special/TSTypeParameter/spec.ts
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Expand Up @@ -8,4 +8,6 @@ export interface TSTypeParameter extends BaseNode {
name: Identifier;
constraint?: TypeNode;
default?: TypeNode;
in: boolean;
out: boolean;
}
1 change: 1 addition & 0 deletions packages/shared-fixtures/fixtures/typescript/types/optional-variance-in-and-out.src.ts
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@@ -0,0 +1 @@
type Mapper<in T, out U> = (x: T) => U;
1 change: 1 addition & 0 deletions packages/shared-fixtures/fixtures/typescript/types/optional-variance-in-out.src.ts
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@@ -0,0 +1 @@
type Processor<in out T> = (x: T) => T;
1 change: 1 addition & 0 deletions packages/shared-fixtures/fixtures/typescript/types/optional-variance-in.src.ts
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@@ -0,0 +1 @@
type Consumer<in T> = (x: T) => void;
1 change: 1 addition & 0 deletions packages/shared-fixtures/fixtures/typescript/types/optional-variance-out.src.ts
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@@ -0,0 +1 @@
type Provider<out T> = () => T;
2 changes: 2 additions & 0 deletions packages/typescript-estree/src/convert.ts
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Expand Up @@ -2342,6 +2342,8 @@ export class Converter {
? this.convertType(node.constraint)
: undefined,
default: node.default ? this.convertType(node.default) : undefined,
in: hasModifier(SyntaxKind.InKeyword, node),
out: hasModifier(SyntaxKind.OutKeyword, node),
});
}

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8 changes: 8 additions & 0 deletions packages/typescript-estree/tests/ast-alignment/fixtures-to-test.ts
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Expand Up @@ -489,6 +489,14 @@ tester.addFixturePatternConfig('typescript/types', {
* Babel doesn't support TS 4.7 new feature yet.
*/
'conditional-infer-with-constraint',
/**
* [BABEL ERRORED, BUT TS-ESTREE DID NOT]
* Babel doesn't support TS 4.7 new features yet.
*/
'optional-variance-in',
'optional-variance-out',
'optional-variance-in-out',
'optional-variance-in-and-out',
],
});

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7 changes: 7 additions & 0 deletions packages/typescript-estree/tests/ast-alignment/utils.ts
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Expand Up @@ -150,6 +150,13 @@ export function preprocessBabylonAST(ast: File): any {
type: AST_NODE_TYPES.Identifier,
};
}
// Babel does not support TS 4.7 optional vaiance yet.
bradzacher marked this conversation as resolved.
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if (!node.in) {
node.in = false;
}
if (!node.out) {
node.out = false;
}
},
MethodDefinition(node) {
/**
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2 changes: 2 additions & 0 deletions packages/typescript-estree/tests/lib/__snapshots__/convert.test.ts.snap
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Expand Up @@ -475,6 +475,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 11,
Expand Down Expand Up @@ -503,6 +504,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
10,
11,
Expand Down
8 changes: 8 additions & 0 deletions packages/typescript-estree/tests/lib/__snapshots__/semantic-diagnostics-enabled.test.ts.snap
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Expand Up @@ -2732,6 +2732,14 @@ exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" e

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/object-literal-type-with-accessors.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/optional-variance-in.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/optional-variance-in-and-out.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/optional-variance-in-out.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/optional-variance-out.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/parenthesized-type.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;

exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/types/reference.src 1`] = `"TEST OUTPUT: No semantic or syntactic issues found"`;
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2 changes: 2 additions & 0 deletions .../tests/snapshots/typescript/babylon-convergence/type-parameter-whitespace-loc.src.ts.shot
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Expand Up @@ -74,6 +74,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 14,
Expand Down Expand Up @@ -102,6 +103,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
13,
14,
Expand Down
2 changes: 2 additions & 0 deletions ...escript-estree/tests/snapshots/typescript/babylon-convergence/type-parameters.src.ts.shot
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Expand Up @@ -106,6 +106,7 @@ Object {
],
"type": "TSObjectKeyword",
},
"in": false,
"loc": Object {
"end": Object {
"column": 36,
Expand Down Expand Up @@ -134,6 +135,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
11,
36,
Expand Down
2 changes: 2 additions & 0 deletions ...-estree/tests/snapshots/typescript/basics/arrow-function-with-type-parameters.src.ts.shot
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Expand Up @@ -219,6 +219,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 2,
Expand Down Expand Up @@ -247,6 +248,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
1,
2,
Expand Down
4 changes: 4 additions & 0 deletions ...script-estree/tests/snapshots/typescript/basics/call-signatures-with-generics.src.ts.shot
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Expand Up @@ -168,6 +168,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 4,
Expand Down Expand Up @@ -196,6 +197,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
16,
17,
Expand Down Expand Up @@ -329,6 +331,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 7,
Expand Down Expand Up @@ -357,6 +360,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
44,
45,
Expand Down
4 changes: 4 additions & 0 deletions .../tests/snapshots/typescript/basics/class-with-constructor-and-type-parameters.src.ts.shot
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Expand Up @@ -98,6 +98,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 15,
Expand Down Expand Up @@ -126,6 +127,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
24,
25,
Expand Down Expand Up @@ -234,6 +236,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 19,
Expand Down Expand Up @@ -262,6 +265,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
52,
53,
Expand Down
2 changes: 2 additions & 0 deletions ...-estree/tests/snapshots/typescript/basics/class-with-extends-generic-multiple.src.ts.shot
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Expand Up @@ -214,6 +214,7 @@ Object {
"typeParameters": undefined,
},
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 21,
Expand Down Expand Up @@ -242,6 +243,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
10,
21,
Expand Down
2 changes: 2 additions & 0 deletions ...ypescript-estree/tests/snapshots/typescript/basics/class-with-extends-generic.src.ts.shot
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Expand Up @@ -143,6 +143,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 11,
Expand Down Expand Up @@ -171,6 +172,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
10,
11,
Expand Down
2 changes: 2 additions & 0 deletions ...pt-estree/tests/snapshots/typescript/basics/class-with-generic-method-default.src.ts.shot
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Expand Up @@ -133,6 +133,7 @@ Object {
},
"typeParameters": undefined,
},
"in": false,
"loc": Object {
"end": Object {
"column": 16,
Expand Down Expand Up @@ -161,6 +162,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
21,
28,
Expand Down
2 changes: 2 additions & 0 deletions ...typescript-estree/tests/snapshots/typescript/basics/class-with-generic-method.src.ts.shot
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Expand Up @@ -98,6 +98,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 10,
Expand Down Expand Up @@ -126,6 +127,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
21,
22,
Expand Down
2 changes: 2 additions & 0 deletions packages/typescript-estree/tests/snapshots/typescript/basics/class-with-method.src.ts.shot
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Expand Up @@ -211,6 +211,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 7,
Expand Down Expand Up @@ -239,6 +240,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
36,
37,
Expand Down
2 changes: 2 additions & 0 deletions ...ypescript-estree/tests/snapshots/typescript/basics/class-with-mixin-reference.src.ts.shot
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Expand Up @@ -235,6 +235,7 @@ Object {
},
},
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 35,
Expand Down Expand Up @@ -263,6 +264,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
11,
35,
Expand Down
4 changes: 4 additions & 0 deletions packages/typescript-estree/tests/snapshots/typescript/basics/class-with-mixin.src.ts.shot
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Expand Up @@ -289,6 +289,7 @@ Object {
},
},
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 36,
Expand Down Expand Up @@ -317,6 +318,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
11,
36,
Expand Down Expand Up @@ -828,6 +830,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 18,
Expand Down Expand Up @@ -856,6 +859,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
175,
176,
Expand Down
4 changes: 4 additions & 0 deletions ...tests/snapshots/typescript/basics/class-with-two-methods-computed-constructor.src.ts.shot
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Expand Up @@ -133,6 +133,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 17,
Expand Down Expand Up @@ -161,6 +162,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
26,
27,
Expand Down Expand Up @@ -303,6 +305,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 19,
Expand Down Expand Up @@ -331,6 +334,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
64,
65,
Expand Down
2 changes: 2 additions & 0 deletions ...pt-estree/tests/snapshots/typescript/basics/class-with-type-parameter-default.src.ts.shot
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Expand Up @@ -106,6 +106,7 @@ Object {
},
"typeParameters": undefined,
},
"in": false,
"loc": Object {
"end": Object {
"column": 17,
Expand Down Expand Up @@ -134,6 +135,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
10,
17,
Expand Down
2 changes: 2 additions & 0 deletions ...estree/tests/snapshots/typescript/basics/class-with-type-parameter-underscore.src.ts.shot
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Expand Up @@ -71,6 +71,7 @@ Object {
Object {
"constraint": undefined,
"default": undefined,
"in": false,
"loc": Object {
"end": Object {
"column": 11,
Expand Down Expand Up @@ -99,6 +100,7 @@ Object {
],
"type": "Identifier",
},
"out": false,
"range": Array [
8,
11,
Expand Down