lepu-test-platform-web/node_modules/@babel/traverse/lib/index.js

112 lines
2.6 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "NodePath", {
enumerable: true,
get: function () {
return _path.default;
}
});
Object.defineProperty(exports, "Scope", {
enumerable: true,
get: function () {
return _scope.default;
}
});
Object.defineProperty(exports, "Hub", {
enumerable: true,
get: function () {
return _hub.default;
}
});
exports.visitors = exports.default = void 0;
var _context = require("./context");
var visitors = require("./visitors");
exports.visitors = visitors;
var t = require("@babel/types");
var cache = require("./cache");
var _path = require("./path");
var _scope = require("./scope");
var _hub = require("./hub");
function traverse(parent, opts = {}, scope, state, parentPath) {
if (!parent) return;
if (!opts.noScope && !scope) {
if (parent.type !== "Program" && parent.type !== "File") {
throw new Error("You must pass a scope and parentPath unless traversing a Program/File. " + `Instead of that you tried to traverse a ${parent.type} node without ` + "passing scope and parentPath.");
}
}
if (!t.VISITOR_KEYS[parent.type]) {
return;
}
visitors.explode(opts);
traverse.node(parent, opts, scope, state, parentPath);
}
var _default = traverse;
exports.default = _default;
traverse.visitors = visitors;
traverse.verify = visitors.verify;
traverse.explode = visitors.explode;
traverse.cheap = function (node, enter) {
return t.traverseFast(node, enter);
};
traverse.node = function (node, opts, scope, state, parentPath, skipKeys) {
const keys = t.VISITOR_KEYS[node.type];
if (!keys) return;
const context = new _context.default(scope, opts, state, parentPath);
for (const key of keys) {
if (skipKeys && skipKeys[key]) continue;
if (context.visit(node, key)) return;
}
};
traverse.clearNode = function (node, opts) {
t.removeProperties(node, opts);
cache.path.delete(node);
};
traverse.removeProperties = function (tree, opts) {
t.traverseFast(tree, traverse.clearNode, opts);
return tree;
};
function hasDenylistedType(path, state) {
if (path.node.type === state.type) {
state.has = true;
path.stop();
}
}
traverse.hasType = function (tree, type, denylistTypes) {
if (denylistTypes != null && denylistTypes.includes(tree.type)) return false;
if (tree.type === type) return true;
const state = {
has: false,
type: type
};
traverse(tree, {
noScope: true,
denylist: denylistTypes,
enter: hasDenylistedType
}, null, state);
return state.has;
};
traverse.cache = cache;