feat(core): support v-show directive (#310)

2019-11-25 11:04:26 +08:00
parent 1765985ec2
commit 00857ac816
9 changed files with 253 additions and 4 deletions
--- a/packages/compiler-dom/src/transforms/vShow.ts
+++ b/packages/compiler-dom/src/transforms/vShow.ts
@@ -1 +1,17 @@
-// TODO
+import { DirectiveTransform } from '@vue/compiler-core'
+import { createDOMCompilerError, DOMErrorCodes } from '../errors'
+import { V_SHOW } from '../runtimeHelpers'
+
+export const transformShow: DirectiveTransform = (dir, node, context) => {
+  const { exp, loc } = dir
+  if (!exp) {
+    context.onError(
+      createDOMCompilerError(DOMErrorCodes.X_V_SHOW_NO_EXPRESSION, loc)
+    )
+  }
+
+  return {
+    props: [],
+    needRuntime: context.helper(V_SHOW)
+  }
+}