lepu-test-platform-web/node_modules/babel-traverse/lib/path/ancestry.js

238 lines
5.6 KiB
JavaScript

"use strict";
exports.__esModule = true;
var _getIterator2 = require("babel-runtime/core-js/get-iterator");
var _getIterator3 = _interopRequireDefault(_getIterator2);
exports.findParent = findParent;
exports.find = find;
exports.getFunctionParent = getFunctionParent;
exports.getStatementParent = getStatementParent;
exports.getEarliestCommonAncestorFrom = getEarliestCommonAncestorFrom;
exports.getDeepestCommonAncestorFrom = getDeepestCommonAncestorFrom;
exports.getAncestry = getAncestry;
exports.isAncestor = isAncestor;
exports.isDescendant = isDescendant;
exports.inType = inType;
exports.inShadow = inShadow;
var _babelTypes = require("babel-types");
var t = _interopRequireWildcard(_babelTypes);
var _index = require("./index");
var _index2 = _interopRequireDefault(_index);
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function findParent(callback) {
var path = this;
while (path = path.parentPath) {
if (callback(path)) return path;
}
return null;
}
function find(callback) {
var path = this;
do {
if (callback(path)) return path;
} while (path = path.parentPath);
return null;
}
function getFunctionParent() {
return this.findParent(function (path) {
return path.isFunction() || path.isProgram();
});
}
function getStatementParent() {
var path = this;
do {
if (Array.isArray(path.container)) {
return path;
}
} while (path = path.parentPath);
}
function getEarliestCommonAncestorFrom(paths) {
return this.getDeepestCommonAncestorFrom(paths, function (deepest, i, ancestries) {
var earliest = void 0;
var keys = t.VISITOR_KEYS[deepest.type];
for (var _iterator = ancestries, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
var _ref;
if (_isArray) {
if (_i >= _iterator.length) break;
_ref = _iterator[_i++];
} else {
_i = _iterator.next();
if (_i.done) break;
_ref = _i.value;
}
var ancestry = _ref;
var path = ancestry[i + 1];
if (!earliest) {
earliest = path;
continue;
}
if (path.listKey && earliest.listKey === path.listKey) {
if (path.key < earliest.key) {
earliest = path;
continue;
}
}
var earliestKeyIndex = keys.indexOf(earliest.parentKey);
var currentKeyIndex = keys.indexOf(path.parentKey);
if (earliestKeyIndex > currentKeyIndex) {
earliest = path;
}
}
return earliest;
});
}
function getDeepestCommonAncestorFrom(paths, filter) {
var _this = this;
if (!paths.length) {
return this;
}
if (paths.length === 1) {
return paths[0];
}
var minDepth = Infinity;
var lastCommonIndex = void 0,
lastCommon = void 0;
var ancestries = paths.map(function (path) {
var ancestry = [];
do {
ancestry.unshift(path);
} while ((path = path.parentPath) && path !== _this);
if (ancestry.length < minDepth) {
minDepth = ancestry.length;
}
return ancestry;
});
var first = ancestries[0];
depthLoop: for (var i = 0; i < minDepth; i++) {
var shouldMatch = first[i];
for (var _iterator2 = ancestries, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
var _ref2;
if (_isArray2) {
if (_i2 >= _iterator2.length) break;
_ref2 = _iterator2[_i2++];
} else {
_i2 = _iterator2.next();
if (_i2.done) break;
_ref2 = _i2.value;
}
var ancestry = _ref2;
if (ancestry[i] !== shouldMatch) {
break depthLoop;
}
}
lastCommonIndex = i;
lastCommon = shouldMatch;
}
if (lastCommon) {
if (filter) {
return filter(lastCommon, lastCommonIndex, ancestries);
} else {
return lastCommon;
}
} else {
throw new Error("Couldn't find intersection");
}
}
function getAncestry() {
var path = this;
var paths = [];
do {
paths.push(path);
} while (path = path.parentPath);
return paths;
}
function isAncestor(maybeDescendant) {
return maybeDescendant.isDescendant(this);
}
function isDescendant(maybeAncestor) {
return !!this.findParent(function (parent) {
return parent === maybeAncestor;
});
}
function inType() {
var path = this;
while (path) {
for (var _iterator3 = arguments, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
var _ref3;
if (_isArray3) {
if (_i3 >= _iterator3.length) break;
_ref3 = _iterator3[_i3++];
} else {
_i3 = _iterator3.next();
if (_i3.done) break;
_ref3 = _i3.value;
}
var type = _ref3;
if (path.node.type === type) return true;
}
path = path.parentPath;
}
return false;
}
function inShadow(key) {
var parentFn = this.isFunction() ? this : this.findParent(function (p) {
return p.isFunction();
});
if (!parentFn) return;
if (parentFn.isFunctionExpression() || parentFn.isFunctionDeclaration()) {
var shadow = parentFn.node.shadow;
if (shadow && (!key || shadow[key] !== false)) {
return parentFn;
}
} else if (parentFn.isArrowFunctionExpression()) {
return parentFn;
}
return null;
}