fix(compiler-vapor): remove types for expressions (#13395)

Author: zhiyuanzmj

packages/compiler-vapor/__tests__/transforms/__snapshots__/vOn.spec.ts.snap

@@ -123,6 +123,18 @@ export function render(_ctx, $props, $emit, $attrs, $slots) {
 }"
 `;
 
+exports[`v-on > expression with type 1`] = `
+"import { delegateEvents as _delegateEvents, template as _template } from 'vue';
+const t0 = _template("<div></div>", true)
+_delegateEvents("click")
+
+export function render(_ctx, $props, $emit, $attrs, $slots) {
+  const n0 = t0()
+  n0.$evtclick = e => _ctx.handleClick(e)
+  return n0
+}"
+`;
+
 exports[`v-on > function expression w/ prefixIdentifiers: true 1`] = `
 "import { delegateEvents as _delegateEvents, template as _template } from 'vue';
 const t0 = _template("<div></div>", true)

packages/compiler-vapor/__tests__/transforms/vOn.spec.ts

@@ -682,4 +682,17 @@ describe('v-on', () => {
       '_delegate(n0, "click", _withModifiers(e => _ctx.test(e), ["stop"]))',
     )
   })
+
+  test('expression with type', () => {
+    const { code } = compileWithVOn(
+      `<div @click="(<number>handleClick as any)"></div>`,
+      {
+        bindingMetadata: {
+          handleClick: BindingTypes.SETUP_CONST,
+        },
+      },
+    )
+    expect(code).matchSnapshot()
+    expect(code).include('n0.$evtclick = e => _ctx.handleClick(e)')
+  })
 })

packages/compiler-vapor/src/generators/expression.ts

@@ -10,6 +10,7 @@ import {
   NewlineType,
   type SimpleExpressionNode,
   type SourceLocation,
+  TS_NODE_TYPES,
   advancePositionWithClone,
   createSimpleExpression,
   isInDestructureAssignment,
@@ -63,6 +64,7 @@ export function genExpression(
   let hasMemberExpression = false
   if (ids.length) {
     const [frag, push] = buildCodeFragment()
+    const isTSNode = ast && TS_NODE_TYPES.includes(ast.type)
     ids
       .sort((a, b) => a.start! - b.start!)
       .forEach((id, i) => {
@@ -71,8 +73,10 @@ export function genExpression(
         const end = id.end! - 1
         const last = ids[i - 1]
 
-        const leadingText = content.slice(last ? last.end! - 1 : 0, start)
-        if (leadingText.length) push([leadingText, NewlineType.Unknown])
+        if (!(isTSNode && i === 0)) {
+          const leadingText = content.slice(last ? last.end! - 1 : 0, start)
+          if (leadingText.length) push([leadingText, NewlineType.Unknown])
+        }
 
         const source = content.slice(start, end)
         const parentStack = parentStackMap.get(id)!
@@ -99,7 +103,7 @@ export function genExpression(
           ),
         )
 
-        if (i === ids.length - 1 && end < content.length) {
+        if (i === ids.length - 1 && end < content.length && !isTSNode) {
           push([content.slice(end), NewlineType.Unknown])
         }
       })