cerxes/babel
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fix let scoping not working with while loops - fixes #254

Browse Source
This commit is contained in:
Sebastian McKenzie 2014-12-06 19:36:08 +11:00
parent 7c1a924ef6
commit 9c0a8e22d2
2 changed files with 20 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
lib/6to5/transformation/transformers/es6-let-scoping.js
View File

@ -27,7 +27,7 @@ exports.VariableDeclaration = function (node) {
isLet(node);
};
exports.For = function (node, parent, file, scope) {
exports.Loop = function (node, parent, file, scope) {
var init = node.left || node.init;
if (isLet(init)) {
t.ensureBlock(node);
@ -49,7 +49,7 @@ exports.For = function (node, parent, file, scope) {
};
exports.BlockStatement = function (block, parent, file, scope) {
if (!t.isFor(parent)) {
if (!t.isLoop(parent)) {
var letScoping = new LetScoping(false, block, parent, file, scope);
letScoping.run();
}
@ -58,19 +58,19 @@ exports.BlockStatement = function (block, parent, file, scope) {
/**
* Description
*
* @param {Boolean|Node} forParent
* @param {Boolean|Node} loopParent
* @param {Node} block
* @param {Node} parent
* @param {File} file
* @param {Scope} scope
*/
function LetScoping(forParent, block, parent, file, scope) {
this.forParent = forParent;
this.parent = parent;
this.scope = scope;
this.block = block;
this.file = file;
function LetScoping(loopParent, block, parent, file, scope) {
this.loopParent = loopParent;
this.parent = parent;
this.scope = scope;
this.block = block;
this.file = file;
this.letReferences = {};
this.body = [];
@ -172,11 +172,11 @@ LetScoping.prototype.remap = function () {
traverse(node, replace);
};
var forParent = this.forParent;
if (forParent) {
traverseReplace(forParent.right, forParent);
traverseReplace(forParent.test, forParent);
traverseReplace(forParent.update, forParent);
var loopParent = this.loopParent;
if (loopParent) {
traverseReplace(loopParent.right, loopParent);
traverseReplace(loopParent.test, loopParent);
traverseReplace(loopParent.update, loopParent);
}
traverse(block, replace);
@ -365,7 +365,7 @@ LetScoping.prototype.getLetReferences = function () {
});
return false;
} else if (t.isFor(node)) {
} else if (t.isLoop(node)) {
return false;
}
});
@ -428,7 +428,7 @@ LetScoping.prototype.buildHas = function (ret, call) {
t.variableDeclarator(ret, call)
]));
var forParent = this.forParent;
var loopParent = this.loopParent;
var retCheck;
var has = this.has;
var cases = [];
@ -443,7 +443,7 @@ LetScoping.prototype.buildHas = function (ret, call) {
if (has.hasBreak || has.hasContinue) {
// ensure that the parent has a label as we're building a switch and we
// need to be able to access it
var label = forParent.label = forParent.label || this.file.generateUidIdentifier("loop", this.scope);
var label = loopParent.label = loopParent.label || this.file.generateUidIdentifier("loop", this.scope);
if (has.hasBreak) {
cases.push(t.switchCase(t.literal("break"), [t.breakStatement(label)]));

6
lib/6to5/types/alias-keys.json
View File

@ -3,14 +3,14 @@
"BreakStatement": ["Statement"],
"ContinueStatement": ["Statement"],
"DebuggerStatement": ["Statement"],
"DoWhileStatement": ["Statement", "Loop", "With"],
"DoWhileStatement": ["Statement", "Loop", "While"],
"IfStatement": ["Statement"],
"ReturnStatement": ["Statement"],
"SwitchStatement": ["Statement"],
"ThrowStatement": ["Statement"],
"TryStatement": ["Statement"],
"WhileStatement": ["Statement"],
"WithStatement": ["Statement", "Loop", "With"],
"WhileStatement": ["Statement", "Loop", "While"],
"WithStatement": ["Statement"],
"EmptyStatement": ["Statement"],
"LabeledStatement": ["Statement"],
"VariableDeclaration": ["Statement", "Declaration"],