188 lines
No EOL
4.2 KiB
JavaScript
188 lines
No EOL
4.2 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
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;
|
|
|
|
function t() {
|
|
const data = _interopRequireWildcard(require("@babel/types"));
|
|
|
|
t = function () {
|
|
return data;
|
|
};
|
|
|
|
return data;
|
|
}
|
|
|
|
var _index = _interopRequireDefault(require("./index"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
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)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
|
|
|
|
function findParent(callback) {
|
|
let path = this;
|
|
|
|
while (path = path.parentPath) {
|
|
if (callback(path)) return path;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
function find(callback) {
|
|
let path = this;
|
|
|
|
do {
|
|
if (callback(path)) return path;
|
|
} while (path = path.parentPath);
|
|
|
|
return null;
|
|
}
|
|
|
|
function getFunctionParent() {
|
|
return this.findParent(p => p.isFunction());
|
|
}
|
|
|
|
function getStatementParent() {
|
|
let path = this;
|
|
|
|
do {
|
|
if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
|
|
break;
|
|
} else {
|
|
path = path.parentPath;
|
|
}
|
|
} while (path);
|
|
|
|
if (path && (path.isProgram() || path.isFile())) {
|
|
throw new Error("File/Program node, we can't possibly find a statement parent to this");
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
function getEarliestCommonAncestorFrom(paths) {
|
|
return this.getDeepestCommonAncestorFrom(paths, function (deepest, i, ancestries) {
|
|
let earliest;
|
|
const keys = t().VISITOR_KEYS[deepest.type];
|
|
|
|
for (const ancestry of ancestries) {
|
|
const path = ancestry[i + 1];
|
|
|
|
if (!earliest) {
|
|
earliest = path;
|
|
continue;
|
|
}
|
|
|
|
if (path.listKey && earliest.listKey === path.listKey) {
|
|
if (path.key < earliest.key) {
|
|
earliest = path;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
const earliestKeyIndex = keys.indexOf(earliest.parentKey);
|
|
const currentKeyIndex = keys.indexOf(path.parentKey);
|
|
|
|
if (earliestKeyIndex > currentKeyIndex) {
|
|
earliest = path;
|
|
}
|
|
}
|
|
|
|
return earliest;
|
|
});
|
|
}
|
|
|
|
function getDeepestCommonAncestorFrom(paths, filter) {
|
|
if (!paths.length) {
|
|
return this;
|
|
}
|
|
|
|
if (paths.length === 1) {
|
|
return paths[0];
|
|
}
|
|
|
|
let minDepth = Infinity;
|
|
let lastCommonIndex, lastCommon;
|
|
const ancestries = paths.map(path => {
|
|
const ancestry = [];
|
|
|
|
do {
|
|
ancestry.unshift(path);
|
|
} while ((path = path.parentPath) && path !== this);
|
|
|
|
if (ancestry.length < minDepth) {
|
|
minDepth = ancestry.length;
|
|
}
|
|
|
|
return ancestry;
|
|
});
|
|
const first = ancestries[0];
|
|
|
|
depthLoop: for (let i = 0; i < minDepth; i++) {
|
|
const shouldMatch = first[i];
|
|
|
|
for (const ancestry of ancestries) {
|
|
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() {
|
|
let path = this;
|
|
const paths = [];
|
|
|
|
do {
|
|
paths.push(path);
|
|
} while (path = path.parentPath);
|
|
|
|
return paths;
|
|
}
|
|
|
|
function isAncestor(maybeDescendant) {
|
|
return maybeDescendant.isDescendant(this);
|
|
}
|
|
|
|
function isDescendant(maybeAncestor) {
|
|
return !!this.findParent(parent => parent === maybeAncestor);
|
|
}
|
|
|
|
function inType() {
|
|
let path = this;
|
|
|
|
while (path) {
|
|
for (const type of arguments) {
|
|
if (path.node.type === type) return true;
|
|
}
|
|
|
|
path = path.parentPath;
|
|
}
|
|
|
|
return false;
|
|
} |