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properly disallow type casts in reference lists

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This commit is contained in:
Sebastian McKenzie 2015-07-21 02:01:48 +01:00
parent 7f34827a72
commit ee04db074d
1 changed files with 6 additions and 13 deletions
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19
src/plugins/flow.js
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@ -714,16 +714,10 @@ export default function (instance) {
instance.extend("toReferencedList", function () {
return function (exprList) {
var foundTypeCast = false;
for (var i = 0; i < exprList.length; i++) {
var expr = exprList[i];
if (expr && expr._exprListItem && expr.type === "TypeCastExpression") {
if (foundTypeCast) {
this.unexpected(expr.start, "Unexpected type cast");
} else {
foundTypeCast = true;
}
this.raise(expr.start, "Unexpected type cast");
}
}
@ -733,14 +727,13 @@ export default function (instance) {
instance.extend("parseExprListItem", function (inner) {
return function (allowEmpty, refShorthandDefaultPos) {
var container = this.startNode();
var node = inner.call(this, allowEmpty, refShorthandDefaultPos);
if (this.type === tt.colon) {
return {
type: "TypeCastExpression",
_exprListItem: true,
expression: node,
typeAnnotation: this.flowParseTypeAnnotation()
};
container._exprListItem = true;
container.expression = node;
container.typeAnnotation = this.flowParseTypeAnnotation();
return this.finishNode(container, "TypeCastExpression");
} else {
return node;
}