fix: add-emit-declaration will throw undefined type error

ygj6 · ygj6 · commit a37a9963aa97 · 2021-06-17T17:23:07.000+08:00
diff --git a/transformations/add-emit-declaration.ts b/transformations/add-emit-declaration.ts
@@ -39,7 +39,7 @@ export const transformAST: ASTTransformation = ({ root, j }) => {
 
     if(!hasEmitsProperty){
     //  no emits property then create emits:[...]  AST
-      defaultExportBody.get(0).node.declaration.properties.unshift(j.objectProperty(j.identifier('emits'),j.arrayExpression(elements)));
+      defaultExportBody.get(0).node.declaration.properties?.unshift(j.objectProperty(j.identifier('emits'),j.arrayExpression(elements)));
     }
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -39,7 +39,7 @@ export const transformAST: ASTTransformation = ({ root, j }) => {`
`39`	`39`
`40`	`40`	`if(!hasEmitsProperty){`
`41`	`41`	`// no emits property then create emits:[...] AST`
`42`		`- defaultExportBody.get(0).node.declaration.properties.unshift(j.objectProperty(j.identifier('emits'),j.arrayExpression(elements)));`
	`42`	`+ defaultExportBody.get(0).node.declaration.properties?.unshift(j.objectProperty(j.identifier('emits'),j.arrayExpression(elements)));`
`43`	`43`	`}`
`44`	`44`	`}`
`45`	`45`	`}`