fix: declare missing property now works

fix: e.code suggestions work in switch-case

Author: zardoy

typescript/src/codeActions/extended/declareMissingProperties.ts

@@ -6,13 +6,13 @@ export default {
     kind: 'quickfix',
     title: 'Declare missing property',
     tryToApply({ sourceFile, node }) {
-        const param = matchParents(node, ['Identifier', 'ObjectBindingPattern', 'Parameter'])
+        const param = matchParents(node, ['Identifier', 'BindingElement', 'ObjectBindingPattern', 'Parameter'])
         if (param) {
             // special react pattern
             if (ts.isArrowFunction(param.parent) && ts.isVariableDeclaration(param.parent.parent)) {
                 const variableDecl = param.parent.parent
                 if (variableDecl.type?.getText().match(/(React\.)?FC/)) {
-                    // handle interface
+                    // todo handle interface
                 }
             }
             // general patterns
@@ -24,21 +24,12 @@ export default {
                 if (insertComma) insertText = `, ${insertText}`
                 // alternatively only one snippetEdit could be used with tsFull.escapeSnippetText(insertText) + $0
                 return {
-                    edits: [
-                        {
-                            newText: insertText,
-                            span: {
-                                length: 0,
-                                start: insertPos,
-                            },
-                        },
-                    ],
                     snippetEdits: [
                         {
-                            newText: '$0',
+                            newText: `${tsFull.escapeSnippetText(insertText)}$0`,
                             span: {
                                 length: 0,
-                                start: insertPos + insertText.length - 1,
+                                start: insertPos,
                             },
                         },
                     ],
@@ -48,3 +39,16 @@ export default {
         return
     },
 } as ExtendedCodeAction
+
+const testCode = () => {
+    const tester = (code: string) => {
+        // ^ - problem location in which quickfix needs to be tested (applied)
+        // | - cursor position after quickfix is applied
+        // [[...]] - applied part of the code
+        /* TODO */
+    }
+
+    tester(/* ts */ `
+        const b = ({ b, ^a }: { b[[, a/*|*/]] }) => {}
+    `)
+}

typescript/src/utils.ts

@@ -303,12 +303,12 @@ export const matchParents: MatchParentsType = (node, treeToCompare) => {
     for (const toCompare of treeToCompare) {
         if (!first) {
             node = node?.parent
-            first = false
         }
         if (!node) return
         if (!(ts[`is${toCompare}` as keyof typeof ts] as (node) => boolean)(node)) {
             return
         }
+        first = false
     }
     return node as any
 }