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Fixing slow paste with spinner #61032

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Fixing slow paste with spinner #61032

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16332a6
adding check for imports in preparePasteEdits
navya9singh Jan 23, 2025
f98c142
fixing test
navya9singh Jan 23, 2025
9658e0a
removing binding element check
navya9singh Jan 23, 2025
7bbb51f
removing import
navya9singh Jan 23, 2025
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12 changes: 12 additions & 0 deletions src/services/preparePasteEdits.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,12 @@ import {
forEachChild,
getTokenAtPosition,
isIdentifier,
isImportClause,
isImportDeclaration,
isImportEqualsDeclaration,
isImportSpecifier,
isNamedImports,
isNamespaceImport,
rangeContainsPosition,
rangeContainsRange,
SourceFile,
Expand All @@ -25,6 +31,12 @@ export function preparePasteEdits(
ancestorNode => rangeContainsRange(ancestorNode, range),
);
if (!enclosingNode) return;
if (
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Do all these conditions work if only a an identifier is selected? What about part of the module specifier? The test only shows the case where an entire import declaration is selected.

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Yes, if only an identifier is selected, it works too because it doesn't enter this if block, instead tries to enter the forEachChild but since it doesn't have any children it just returns and moves to the next iteration. Same for moduleSpecifier. If this is selected { foo }, then it will enter the if block.

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Can you add tests to show that it works?

isImportSpecifier(enclosingNode) || isImportClause(enclosingNode) || isNamespaceImport(enclosingNode)
|| isImportEqualsDeclaration(enclosingNode) || isImportDeclaration(enclosingNode) || isNamedImports(enclosingNode)
) {
return;
}
forEachChild(enclosingNode, function checkNameResolution(node) {
if (shouldProvidePasteEdits) return;
if (isIdentifier(node) && rangeContainsPosition(range, node.getStart(sourceFile))) {
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3 changes: 3 additions & 0 deletions tests/cases/fourslash/preparePasteEdits_returnFalse.ts
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@@ -1,11 +1,14 @@
/// <reference path='./fourslash.ts' />

// @Filename: /file1.ts
//// [|import {abc} from "./file2";|]
//// [|const a = 1;|]
//// [|function foo() {
//// console.log("testing");}|]
//// [|//This is a comment|]

// @Filename: /file2.ts
//// export const abc = 1;
verify.preparePasteEdits({
copiedFromFile: "/file1.ts",
copiedTextRange: test.ranges(),
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