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actually push for left declaration to the returned block scoping body - fixes #1819

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This commit is contained in:
Sebastian McKenzie 2015-06-25 03:48:29 +01:00
parent cf38210fd2
commit 6f862a4c45
1 changed files with 22 additions and 17 deletions
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39
src/babel/transformation/transformers/es6/block-scoping.js
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@ -149,25 +149,30 @@ var letReferenceFunctionVisitor = {
};
var hoistVarDeclarationsVisitor = {
enter(node, parent, scope, self) {
if (this.isForStatement()) {
if (isVar(node.init, node)) {
var nodes = self.pushDeclar(node.init);
if (nodes.length === 1) {
node.init = nodes[0];
} else {
node.init = t.sequenceExpression(nodes);
}
VariableDeclaration(node, parent, scope, self) {
return self.pushDeclar(node).map(t.expressionStatement);
},
ForStatement(node, parent, scope, self) {
if (isVar(node.init, node)) {
var nodes = self.pushDeclar(node.init);
if (nodes.length === 1) {
node.init = nodes[0];
} else {
node.init = t.sequenceExpression(nodes);
}
} else if (this.isFor()) {
if (isVar(node.left, node)) {
node.left = node.left.declarations[0].id;
}
} else if (isVar(node, parent)) {
return self.pushDeclar(node).map(t.expressionStatement);
} else if (this.isFunction()) {
return this.skip();
}
},
For(node, parent, scope, self) {
if (isVar(node.left, node)) {
self.pushDeclar(node.left);
node.left = node.left.declarations[0].id;
}
},
Function() {
this.skip();
}
};