chore: fix flow

yyx990803 · yyx990803 · commit ad673e125754 · 2017-11-03T16:51:16.000-04:00
diff --git a/src/server/optimizing-compiler/optimizer.js b/src/server/optimizing-compiler/optimizer.js
@@ -130,11 +130,11 @@ function hasCustomDirective (node: ASTNode): ?boolean {
 
 // <select v-model> cannot be optimized because it requires a runtime check
 // to determine proper selected option
-function isSelectWithModel (node: ASTNode): ?boolean {
+function isSelectWithModel (node: ASTNode): boolean {
   return (
     node.type === 1 &&
     node.tag === 'select' &&
-    node.directives &&
+    node.directives != null &&
     node.directives.some(d => d.name === 'model')
   )
 }

Original file line number	Diff line number	Diff line change
`@@ -130,11 +130,11 @@ function hasCustomDirective (node: ASTNode): ?boolean {`
`130`	`130`
`131`	`131`	`// <select v-model> cannot be optimized because it requires a runtime check`
`132`	`132`	`// to determine proper selected option`
`133`		`-function isSelectWithModel (node: ASTNode): ?boolean {`
	`133`	`+function isSelectWithModel (node: ASTNode): boolean {`
`134`	`134`	`return (`
`135`	`135`	`node.type === 1 &&`
`136`	`136`	`node.tag === 'select' &&`
`137`		`- node.directives &&`
	`137`	`+ node.directives != null &&`
`138`	`138`	`node.directives.some(d => d.name === 'model')`
`139`	`139`	`)`
`140`	`140`	`}`