From ffbe8025414b112b022b3cd4f54e5f35cf207c3b Mon Sep 17 00:00:00 2001
From: ykforerlang <1527997464@qq.com>
Date: Fri, 14 Feb 2020 18:06:51 +0800
Subject: [PATCH] =?UTF-8?q?feat(alita-core):=20=E6=94=AF=E6=8C=81=E5=BD=A2?=
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affects: @areslabs/alita-core
---
 packages/alita-core/src/precheck/checkJSX.ts  | 6 ++++--
 packages/alita-core/src/tran/compPreHandle.js | 8 ++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/packages/alita-core/src/precheck/checkJSX.ts b/packages/alita-core/src/precheck/checkJSX.ts
index c14af57..fb67248 100644
--- a/packages/alita-core/src/precheck/checkJSX.ts
+++ b/packages/alita-core/src/precheck/checkJSX.ts
@@ -270,7 +270,8 @@ export default function checkJSX(ast, filepath, rawCode) {
                 return
             }
 
-            if (path.node.value.type === 'JSXExpressionContainer'
+            if (path.node.value
+                && path.node.value.type === 'JSXExpressionContainer'
                 && path.node.value.expression
                 && path.node.value.expression.type === 'MemberExpression'
                 && path.node.value.expression.object.type === 'ThisExpression'
@@ -284,7 +285,8 @@ export default function checkJSX(ast, filepath, rawCode) {
 
 
             // this.xx.bind(this)
-            if (path.node.value.type === 'JSXExpressionContainer'
+            if (path.node.value
+                && path.node.value.type === 'JSXExpressionContainer'
                 && path.node.value.expression
                 && path.node.value.expression.type === 'CallExpression'
                 && path.node.value.expression.callee.type === 'MemberExpression'
diff --git a/packages/alita-core/src/tran/compPreHandle.js b/packages/alita-core/src/tran/compPreHandle.js
index c4a3e4b..c242721 100644
--- a/packages/alita-core/src/tran/compPreHandle.js
+++ b/packages/alita-core/src/tran/compPreHandle.js
@@ -19,6 +19,8 @@ import * as t from "@babel/types"
  *
  * 3. 移除JSX里面的注释
  *
+ * 4. <A x/> ==>  <A x="true"/>
+ *
  * ...
  *
  * @param ast
@@ -78,6 +80,12 @@ export default function compPreHandle(ast, info) {
                 path.parentPath.remove()
                 return
             }
+
+            if (path.type === 'JSXAttribute'
+                && !path.node.value
+            ) {
+                path.node.value = t.stringLiteral('true')
+            }
         }
     })