(fix) add prefix/suffix to rename

sveltejs#755

packages/language-server/src/plugins/typescript/features/RenameProvider.ts

@@ -50,15 +50,23 @@ export class RenameProviderImpl implements RenameProvider {
             return null;
         }
 
-        const renameLocations = lang.findRenameLocations(tsDoc.filePath, offset, false, false);
+        const renameLocations = lang.findRenameLocations(
+            tsDoc.filePath,
+            offset,
+            false,
+            false,
+            true
+        );
         if (!renameLocations) {
             return null;
         }
 
         const docs = new Map<string, SnapshotFragment>([[tsDoc.filePath, fragment]]);
-        let convertedRenameLocations: Array<ts.RenameLocation & {
-            range: Range;
-        }> = await this.mapAndFilterRenameLocations(renameLocations, docs);
+        let convertedRenameLocations: Array<
+            ts.RenameLocation & {
+                range: Range;
+            }
+        > = await this.mapAndFilterRenameLocations(renameLocations, docs);
         // eslint-disable-next-line max-len
         const additionalRenameForPropRenameInsideComponentWithProp = await this.getAdditionLocationsForRenameOfPropInsideComponentWithProp(
             document,
@@ -94,7 +102,10 @@ export class RenameProviderImpl implements RenameProvider {
                 if (!acc.changes[uri]) {
                     acc.changes[uri] = [];
                 }
-                acc.changes[uri].push({ newText: newName, range: loc.range });
+                acc.changes[uri].push({
+                    newText: (loc.prefixText || '') + newName + (loc.suffixText || ''),
+                    range: loc.range
+                });
                 return acc;
             },
             <Required<Pick<WorkspaceEdit, 'changes'>>>{ changes: {} }
@@ -137,7 +148,8 @@ export class RenameProviderImpl implements RenameProvider {
     /**
      * If user renames prop of component A inside component A,
      * we need to handle the rename of the prop of A ourselves.
-     * Reason: the rename will do {oldPropName: newPropName}, we have to handle
+     * Reason: the rename will do {oldPropName: newPropName}, meaning
+     * the rename will not propagate further, so we have to handle
      * the conversion to {newPropName: newPropName} ourselves.
      */
     private async getAdditionLocationsForRenameOfPropInsideComponentWithProp(
@@ -196,8 +208,9 @@ export class RenameProviderImpl implements RenameProvider {
      * If user renames prop of component A inside component B,
      * we need to handle the rename of the prop of A ourselves.
      * Reason: the rename will rename the prop in the computed svelte2tsx code,
-     * but not the `export let X` code in the original. This additional logic
-     * is done in this method.
+     * but not the `export let X` code in the original because the
+     * rename does not propagate further than the prop.
+     * This additional logic/propagation is done in this method.
      */
     private async getAdditionalLocationsForRenameOfPropInsideOtherComponent(
         convertedRenameLocations: Array<ts.RenameLocation & { range: Range }>,

packages/language-server/test/plugins/typescript/features/RenameProvider.test.ts

@@ -12,7 +12,7 @@ const testDir = path.join(__dirname, '..');
 
 describe('RenameProvider', () => {
     function getFullPath(filename: string) {
-        return path.join(testDir, 'testfiles', filename);
+        return path.join(testDir, 'testfiles', 'rename', filename);
     }
 
     function getUri(filename: string) {
@@ -34,7 +34,17 @@ describe('RenameProvider', () => {
         const renameDoc3 = await openDoc('rename3.svelte');
         const renameDoc4 = await openDoc('rename4.svelte');
         const renameDoc5 = await openDoc('rename5.svelte');
-        return { provider, renameDoc1, renameDoc2, renameDoc3, renameDoc4, renameDoc5, docManager };
+        const renameDoc6 = await openDoc('rename6.svelte');
+        return {
+            provider,
+            renameDoc1,
+            renameDoc2,
+            renameDoc3,
+            renameDoc4,
+            renameDoc5,
+            renameDoc6,
+            docManager
+        };
 
         async function openDoc(filename: string) {
             const filePath = getFullPath(filename);
@@ -408,4 +418,55 @@ describe('RenameProvider', () => {
 
         assert.deepStrictEqual(result, null);
     });
+
+    it('should rename with prefix', async () => {
+        const { provider, renameDoc6 } = await setup();
+        const result = await provider.rename(renameDoc6, Position.create(3, 9), 'newName');
+
+        assert.deepStrictEqual(result, {
+            changes: {
+                [getUri('rename6.svelte')]: [
+                    {
+                        newText: 'newName',
+                        range: {
+                            start: {
+                                character: 8,
+                                line: 3
+                            },
+                            end: {
+                                character: 11,
+                                line: 3
+                            }
+                        }
+                    },
+                    {
+                        newText: 'foo: newName',
+                        range: {
+                            start: {
+                                character: 16,
+                                line: 4
+                            },
+                            end: {
+                                character: 19,
+                                line: 4
+                            }
+                        }
+                    },
+                    {
+                        newText: 'foo: newName',
+                        range: {
+                            start: {
+                                character: 18,
+                                line: 7
+                            },
+                            end: {
+                                character: 21,
+                                line: 7
+                            }
+                        }
+                    }
+                ]
+            }
+        });
+    });
 });

packages/language-server/test/plugins/typescript/testfiles/rename/rename6.svelte

@@ -0,0 +1,8 @@
+<script lang="ts">
+  function action(_: any, props: {foo: number}) {}
+
+  const foo = 1;
+  action(null, {foo});
+</script>
+
+<div use:action={{foo}} />