Return string completions for indexed access types
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@ -4403,7 +4403,7 @@ namespace ts {
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return node.kind === SyntaxKind.RegularExpressionLiteral;
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}
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export function isNoSubstitutionTemplateLiteral(node: Node): node is LiteralExpression {
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export function isNoSubstitutionTemplateLiteral(node: Node): node is NoSubstitutionTemplateLiteral {
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return node.kind === SyntaxKind.NoSubstitutionTemplateLiteral;
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}
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@ -264,7 +264,8 @@ namespace ts.Completions {
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// }
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// let a: A;
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// a['/*completion position*/']
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return getStringLiteralCompletionEntriesFromElementAccess(node.parent, typeChecker, compilerOptions.target, log);
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const type = typeChecker.getTypeAtLocation(node.parent.expression);
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return getStringLiteralCompletionEntriesFromElementAccessOrIndexedAccess(node, type, typeChecker, compilerOptions.target, log);
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}
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else if (node.parent.kind === SyntaxKind.ImportDeclaration || node.parent.kind === SyntaxKind.ExportDeclaration
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|| isRequireCall(node.parent, /*checkArgumentIsStringLiteral*/ false) || isImportCall(node.parent)
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@ -278,6 +279,16 @@ namespace ts.Completions {
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const entries = PathCompletions.getStringLiteralCompletionsFromModuleNames(node, compilerOptions, host, typeChecker);
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return pathCompletionsInfo(entries);
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}
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else if (isIndexedAccessTypeNode(node.parent.parent)) {
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// Get all apparent property names
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// i.e. interface Foo {
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// foo: string;
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// bar: string;
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// }
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// let x: Foo["/*completion position*/"]
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const type = typeChecker.getTypeFromTypeNode(node.parent.parent.objectType);
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return getStringLiteralCompletionEntriesFromElementAccessOrIndexedAccess(node, type, typeChecker, compilerOptions.target, log);
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}
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else {
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const argumentInfo = SignatureHelp.getImmediatelyContainingArgumentInfo(node, position, sourceFile);
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if (argumentInfo) {
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@ -334,11 +345,10 @@ namespace ts.Completions {
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return undefined;
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}
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function getStringLiteralCompletionEntriesFromElementAccess(node: ElementAccessExpression, typeChecker: TypeChecker, target: ScriptTarget, log: Log): CompletionInfo | undefined {
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const type = typeChecker.getTypeAtLocation(node.expression);
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function getStringLiteralCompletionEntriesFromElementAccessOrIndexedAccess(stringLiteralNode: StringLiteral | NoSubstitutionTemplateLiteral, type: Type, typeChecker: TypeChecker, target: ScriptTarget, log: Log): CompletionInfo | undefined {
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const entries: CompletionEntry[] = [];
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if (type) {
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getCompletionEntriesFromSymbols(type.getApparentProperties(), entries, node, /*performCharacterChecks*/ false, typeChecker, target, log, /*allowStringLiteral*/ true);
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getCompletionEntriesFromSymbols(type.getApparentProperties(), entries, stringLiteralNode, /*performCharacterChecks*/ false, typeChecker, target, log, /*allowStringLiteral*/ true);
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if (entries.length) {
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return { isGlobalCompletion: false, isMemberCompletion: true, isNewIdentifierLocation: true, entries };
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}
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@ -1583,7 +1593,7 @@ namespace ts.Completions {
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switch (contextToken.kind) {
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case SyntaxKind.OpenParenToken:
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case SyntaxKind.CommaToken:
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return isConstructorDeclaration(contextToken.parent) && contextToken.parent;
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return isConstructorDeclaration(contextToken.parent) && contextToken.parent;
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default:
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if (isConstructorParameterCompletion(contextToken)) {
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@ -2911,7 +2911,7 @@ declare namespace ts {
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function isStringLiteral(node: Node): node is StringLiteral;
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function isJsxText(node: Node): node is JsxText;
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function isRegularExpressionLiteral(node: Node): node is RegularExpressionLiteral;
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function isNoSubstitutionTemplateLiteral(node: Node): node is LiteralExpression;
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function isNoSubstitutionTemplateLiteral(node: Node): node is NoSubstitutionTemplateLiteral;
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function isTemplateHead(node: Node): node is TemplateHead;
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function isTemplateMiddle(node: Node): node is TemplateMiddle;
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function isTemplateTail(node: Node): node is TemplateTail;
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@ -2964,7 +2964,7 @@ declare namespace ts {
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function isStringLiteral(node: Node): node is StringLiteral;
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function isJsxText(node: Node): node is JsxText;
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function isRegularExpressionLiteral(node: Node): node is RegularExpressionLiteral;
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function isNoSubstitutionTemplateLiteral(node: Node): node is LiteralExpression;
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function isNoSubstitutionTemplateLiteral(node: Node): node is NoSubstitutionTemplateLiteral;
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function isTemplateHead(node: Node): node is TemplateHead;
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function isTemplateMiddle(node: Node): node is TemplateMiddle;
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function isTemplateTail(node: Node): node is TemplateTail;
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@ -0,0 +1,13 @@
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/// <reference path='fourslash.ts'/>
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////interface Foo {
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//// foo: string;
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//// bar: string;
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////}
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////
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////let x: Foo["/*1*/"]
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goTo.marker("1");
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verify.completionListContains("foo");
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verify.completionListContains("bar");
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verify.completionListCount(2);
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