fix: prevent AssignmentExpression

Author: zhiyuanzmj

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

@@ -21,7 +21,14 @@ export function render(_ctx) {
   const _setTemplateRef = _createTemplateRefSetter()
   const n0 = t0()
   let r0
-  _renderEffect(() => r0 = _setTemplateRef(n0, bar => _ctx.foo = bar, r0))
+  _renderEffect(() => {
+    const _foo = _ctx.foo
+    r0 = _setTemplateRef(n0, bar => {
+        _foo.value = bar
+        ;({ baz: _ctx.baz } = bar)
+        console.log(_foo.value, _ctx.baz)
+      }, r0)
+  })
   return n0
 }"
 `;

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

@@ -83,7 +83,11 @@ describe('compiler: template ref transform', () => {
 
   test('function ref', () => {
     const { ir, code } = compileWithTransformRef(
-      `<div :ref="bar => foo = bar" />`,
+      `<div :ref="bar => {
+        foo.value = bar
+        ;({ baz } = bar)
+        console.log(foo.value, baz)
+      }" />`,
     )
     expect(ir.block.dynamic.children[0]).toMatchObject({
       id: 0,
@@ -103,7 +107,6 @@ describe('compiler: template ref transform', () => {
             type: IRNodeTypes.SET_TEMPLATE_REF,
             element: 0,
             value: {
-              content: 'bar => foo = bar',
               isStatic: false,
             },
           },
@@ -112,7 +115,11 @@ describe('compiler: template ref transform', () => {
     ])
     expect(code).toMatchSnapshot()
     expect(code).contains('const _setTemplateRef = _createTemplateRefSetter()')
-    expect(code).contains('_setTemplateRef(n0, bar => _ctx.foo = bar, r0)')
+    expect(code).contains(`_setTemplateRef(n0, bar => {
+        _foo.value = bar
+        ;({ baz: _ctx.baz } = bar)
+        console.log(_foo.value, _ctx.baz)
+      }, r0)`)
   })
 
   test('ref + v-if', () => {

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

@@ -296,8 +296,13 @@ function analyzeExpressions(expressions: SimpleExpressionNode[]) {
       (variableToExpMap.get(name) || new Set()).add(exp),
     )
     expToVariableMap.set(exp, (expToVariableMap.get(exp) || []).concat(name))
-    if (parentStack.some(p => p.type === 'UpdateExpression'))
+    if (
+      parentStack.some(
+        p => p.type === 'UpdateExpression' || p.type === 'AssignmentExpression',
+      )
+    ) {
       updatedVariable.add(name)
+    }
   }
 
   for (const exp of expressions) {