avoid generating empty ssrNode

yyx990803 · yyx990803 · commit fdb60065af30 · 2017-05-17T17:06:51.000+08:00
diff --git a/src/server/optimizing-compiler/codegen.js b/src/server/optimizing-compiler/codegen.js
@@ -89,7 +89,9 @@ function genSSRNode (el, state) {
 }
 
 function genStringChildren (el, state) {
-  return `[_ssrNode(${flattenSegments(childrenToSegments(el, state))})]`
+  return el.children.length
+    ? `[_ssrNode(${flattenSegments(childrenToSegments(el, state))})]`
+    : ''
 }
 
 function genStringElement (el, state, stringifyChildren) {
@@ -106,6 +108,7 @@ function genStringElement (el, state, stringifyChildren) {
 }
 
 function elementToSegments (el, state): Array<StringSegment> {
+  // v-for / v-if
   if (el.for && !el.forProcessed) {
     el.forProcessed = true
     return [{
@@ -120,6 +123,9 @@ function elementToSegments (el, state): Array<StringSegment> {
     }]
   }
 
+  // v-html / v-text
+  console.log(el)
+
   const openSegments = elementToOpenTagSegments(el, state)
   const childrenSegments = childrenToSegments(el, state)
   const { isUnaryTag } = state.options

Original file line number	Diff line number	Diff line change
`@@ -89,7 +89,9 @@ function genSSRNode (el, state) {`
`89`	`89`	`}`
`90`	`90`
`91`	`91`	`function genStringChildren (el, state) {`
`92`		- return `[_ssrNode(${flattenSegments(childrenToSegments(el, state))})]`
	`92`	`+ return el.children.length`
	`93`	+ ? `[_ssrNode(${flattenSegments(childrenToSegments(el, state))})]`
	`94`	`+ : ''`
`93`	`95`	`}`
`94`	`96`
`95`	`97`	`function genStringElement (el, state, stringifyChildren) {`
`@@ -106,6 +108,7 @@ function genStringElement (el, state, stringifyChildren) {`
`106`	`108`	`}`
`107`	`109`
`108`	`110`	`function elementToSegments (el, state): Array<StringSegment> {`
	`111`	`+ // v-for / v-if`
`109`	`112`	`if (el.for && !el.forProcessed) {`
`110`	`113`	`el.forProcessed = true`
`111`	`114`	`return [{`
`@@ -120,6 +123,9 @@ function elementToSegments (el, state): Array<StringSegment> {`
`120`	`123`	`}]`
`121`	`124`	`}`
`122`	`125`
	`126`	`+ // v-html / v-text`
	`127`	`+ console.log(el)`
	`128`	`+`
`123`	`129`	`const openSegments = elementToOpenTagSegments(el, state)`
`124`	`130`	`const childrenSegments = childrenToSegments(el, state)`
`125`	`131`	`const { isUnaryTag } = state.options`