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add traverse.cheap and upgrade to new traverse API

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This commit is contained in:
Sebastian McKenzie 2015-09-15 06:26:57 +01:00
parent b91e8699e1
commit 8eeda9f75f
1 changed files with 21 additions and 18 deletions
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39
packages/babel-traverse/src/index.js
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@ -34,47 +34,50 @@ traverse.NodePath = require("./path");
traverse.Scope = require("./scope");
traverse.Hub = require("./hub");
traverse.node = function (node: Object, opts: Object, scope: Object, state: Object, parentPath: Object, skipKeys?) {
traverse.cheap = function (node, enter) {
var keys = t.VISITOR_KEYS[node.type];
if (!keys) return;
enter(node);
for (var key of keys) {
traverse.cheap(node[key], enter);
}
};
traverse.node = function (node: Object, opts: Object, scope: Object, state: Object, parentPath: Object, skipKeys?) {
var keys: Array = t.VISITOR_KEYS[node.type];
if (!keys) return;
var context = new TraversalContext(scope, opts, state, parentPath);
for (var key of (keys: Array)) {
for (var key of keys) {
if (skipKeys && skipKeys[key]) continue;
if (context.visit(node, key)) return;
}
};
const CLEAR_KEYS = t.COMMENT_KEYS.concat([
const CLEAR_KEYS: Array = t.COMMENT_KEYS.concat([
"_scopeInfo", "_paths",
"tokens", "comments",
"start", "end", "loc",
"raw", "rawValue"
]);
traverse.clearNode = function (node: Object) {
for (var i = 0; i < CLEAR_KEYS.length; i++) {
let key = CLEAR_KEYS[i];
traverse.clearNode = function (node) {
for (var key of CLEAR_KEYS) {
if (node[key] != null) node[key] = undefined;
}
};
var clearVisitor = {
noScope: true,
exit: traverse.clearNode
};
traverse.removeProperties = function (tree: Object): Object {
traverse(tree, clearVisitor);
traverse.clearNode(tree);
traverse.removeProperties = function (tree) {
traverse.cheap(tree, traverse.clearNode);
return tree;
};
function hasBlacklistedType(node: Object, parent: Object, scope: Object, state: Object) {
if (node.type === state.type) {
function hasBlacklistedType(path, state) {
if (path.node.type === state.type) {
state.has = true;
this.skip();
path.skip();
}
}