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feat(typescript-estree): throw errors on interface with implements #6551

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merged 7 commits into from Mar 8, 2023
Merged

feat(typescript-estree): throw errors on interface with implements #6551

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7880301
feat(typescript-estree): throw errors on interface with implements
fisker Mar 1, 2023
288288c
Update packages/typescript-estree/src/convert.ts
bradzacher Mar 6, 2023
3eddd46
format
bradzacher Mar 6, 2023
d69cf1d
Merge branch 'v6' into interface-implements
fisker Mar 7, 2023
c7de567
Use `this.#throwError`
fisker Mar 7, 2023
0d1836a
Safer
fisker Mar 7, 2023
c2e8575
Merge branch 'v6' into pr/fisker/6551
bradzacher Mar 8, 2023
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2 changes: 1 addition & 1 deletion ...tures/errorRecovery/fixtures/_error_/interface-implements/snapshots/1-TSESTree-Error.shot
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@@ -1,3 +1,3 @@
// Jest Snapshot v1, https://goo.gl/fbAQLP

exports[`AST Fixtures legacy-fixtures errorRecovery _error_ interface-implements TSESTree - Error 1`] = `"NO ERROR"`;
exports[`AST Fixtures legacy-fixtures errorRecovery _error_ interface-implements TSESTree - Error 1`] = `[TSError: Interface declaration cannot have 'implements' clause.]`;
2 changes: 1 addition & 1 deletion ...ures/errorRecovery/fixtures/_error_/interface-implements/snapshots/3-Alignment-Error.shot
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@@ -1,3 +1,3 @@
// Jest Snapshot v1, https://goo.gl/fbAQLP

exports[`AST Fixtures legacy-fixtures errorRecovery _error_ interface-implements Error Alignment 1`] = `"Babel errored but TSESTree didn't"`;
exports[`AST Fixtures legacy-fixtures errorRecovery _error_ interface-implements Error Alignment 1`] = `"Both errored"`;
1 change: 0 additions & 1 deletion packages/ast-spec/tests/fixtures-with-differences-errors.shot
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Expand Up @@ -61,7 +61,6 @@ Object {
"legacy-fixtures/errorRecovery/fixtures/_error_/enum-with-keywords/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/index-signature-parameters/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/interface-empty-extends/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/interface-implements/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/interface-index-signature-private/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/interface-index-signature-protected/fixture.ts",
"legacy-fixtures/errorRecovery/fixtures/_error_/interface-index-signature-public/fixture.ts",
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30 changes: 19 additions & 11 deletions packages/typescript-estree/src/convert.ts
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Expand Up @@ -2583,6 +2583,24 @@ export class Converter {

case SyntaxKind.InterfaceDeclaration: {
const interfaceHeritageClauses = node.heritageClauses ?? [];
const interfaceExtends: TSESTree.TSInterfaceHeritage[] = [];

for (const heritageClause of interfaceHeritageClauses) {
if (heritageClause.token !== SyntaxKind.ExtendsKeyword) {
throw createError(
this.ast,
heritageClause.pos,
"Interface declaration cannot have 'implements' clause.",
);
}

interfaceExtends.push(
...heritageClause.types.map(
n => this.convertChild(n, node) as TSESTree.TSInterfaceHeritage,
),
);
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}

const result = this.createNode<TSESTree.TSInterfaceDeclaration>(node, {
type: AST_NODE_TYPES.TSInterfaceDeclaration,
body: this.createNode<TSESTree.TSInterfaceBody>(node, {
Expand All @@ -2591,17 +2609,7 @@ export class Converter {
range: [node.members.pos - 1, node.end],
}),
declare: hasModifier(SyntaxKind.DeclareKeyword, node),
extends: interfaceHeritageClauses
.filter(
heritageClause =>
heritageClause.token === SyntaxKind.ExtendsKeyword,
)
.flatMap(heritageClause =>
heritageClause.types.map(
n => this.convertChild(n, node) as TSESTree.TSInterfaceHeritage,
),
),

extends: interfaceExtends,
id: this.convertChild(node.name),
typeParameters:
node.typeParameters &&
Expand Down