fix(transformer): 当本地变量和循环变量冲突时警告，但仍然把本地变量加入 usedState 和 pendingState, …

…#2199
NervJS · Feb 18, 2019 · a637ca5 · a637ca5
1 parent 4b75433
commit a637ca5
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/packages/taro-transformer-wx/src/render.ts b/packages/taro-transformer-wx/src/render.ts
@@ -1125,6 +1125,7 @@ export class RenderParser {
     this.handleLoopComponents()
     renderBody.traverse(this.visitors)
     this.setOutputTemplate()
+    this.checkDuplicateName()
     this.removeJSXStatement()
     this.setUsedState()
     this.setPendingState()
@@ -1567,6 +1568,17 @@ export class RenderParser {
     )))
   }
 
+  checkDuplicateName () {
+    this.loopScopes.forEach(s => {
+      if (this.renderPath.scope.hasBinding(s)) {
+        const err = codeFrameError(this.renderPath.scope.getBinding(s)!.path.node, '此变量声明与循环变量冲突，可能会造成问题。')
+        // tslint:disable-next-line
+        console.warn('Warning: ', err.message)
+        this.loopScopes.delete(s)
+      }
+    })
+  }
+
   setPendingState () {
     const propertyKeys = Array.from(
         new Set(Array.from(this.referencedIdentifiers)