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add comments and remove dead code

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This commit is contained in:
Sebastian McKenzie 2015-07-29 23:22:30 +01:00
parent ed156a8ca5
commit 3df5d31cee
2 changed files with 20 additions and 31 deletions
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23
packages/babel/src/traversal/scope/binding.js
View File

@ -1,5 +1,12 @@
/**
* [Please add a description.]
* This class is responsible for a binding inside of a scope.
*
* It tracks the following:
*
* * Node path.
* * Amount of times referenced by other nodes.
* * Paths to nodes that reassign or modify this binding.
* * The kind of binding. (Is it a parameter, declaration etc)
*/
export default class Binding {
@ -60,7 +67,7 @@ export default class Binding {
}
/**
* [Please add a description.]
* Register a constant violation with the provided `path`.
*/
reassign(path: Object) {
@ -69,7 +76,7 @@ export default class Binding {
}
/**
* [Please add a description.]
* Increment the amount of references to this binding.
*/
reference() {
@ -78,19 +85,11 @@ export default class Binding {
}
/**
* [Please add a description.]
* Decrement the amount of references to this binding.
*/
dereference() {
this.references--;
this.referenced = !!this.references;
}
/**
* [Please add a description.]
*/
isCompatibleWithType(): boolean {
return false;
}
}

28
packages/babel/src/traversal/scope/index.js
View File

@ -187,19 +187,14 @@ var renameVisitor = {
if (!scope.bindingIdentifierEquals(state.oldName, state.binding)) {
this.skip();
}
}
};
},
/**
* [Please add a description.]
*/
"AssignmentExpression|Declaration"(node, parent, scope, state) {
var ids = this.getBindingIdentifiers();
renameVisitor.AssignmentExpression =
renameVisitor.Declaration = function (node, parent, scope, state) {
var ids = this.getBindingIdentifiers();
for (var name in ids) {
if (name === state.oldName) ids[name].name = state.newName;
for (var name in ids) {
if (name === state.oldName) ids[name].name = state.newName;
}
}
};
@ -237,11 +232,13 @@ export default class Scope {
/**
* Globals.
*/
static globals = flatten([globals.builtin, globals.browser, globals.node].map(Object.keys));
/**
* Variables available in current context.
*/
static contextVariables = [
"arguments",
"undefined",
@ -555,14 +552,7 @@ export default class Scope {
var ids = left.getBindingIdentifiers();
for (var name in ids) {
var binding = this.getBinding(name);
if (!binding) continue;
if (right) {
var rightType = right.typeAnnotation;
if (rightType && binding.isCompatibleWithType(rightType)) continue;
}
binding.reassign(root, left, right);
if (binding) binding.reassign(root, left, right);
}
}