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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = cloneNode;
var _definitions = require("../definitions");
var _generated = require("../validators/generated");
const has = Function.call.bind(Object.prototype.hasOwnProperty);
function cloneIfNode(obj, deep, withoutLoc) {
if (obj && typeof obj.type === "string") {
return cloneNode(obj, deep, withoutLoc);
}
return obj;
}
function cloneIfNodeOrArray(obj, deep, withoutLoc) {
if (Array.isArray(obj)) {
return obj.map(node => cloneIfNode(node, deep, withoutLoc));
}
return cloneIfNode(obj, deep, withoutLoc);
}
function cloneNode(node, deep = true, withoutLoc = false) {
if (!node) return node;
const {
type
} = node;
const newNode = {
type: node.type
};
if ((0, _generated.isIdentifier)(node)) {
newNode.name = node.name;
if (has(node, "optional") && typeof node.optional === "boolean") {
newNode.optional = node.optional;
}
if (has(node, "typeAnnotation")) {
newNode.typeAnnotation = deep ? cloneIfNodeOrArray(node.typeAnnotation, true, withoutLoc) : node.typeAnnotation;
}
} else if (!has(_definitions.NODE_FIELDS, type)) {
throw new Error(`Unknown node type: "${type}"`);
} else {
for (const field of Object.keys(_definitions.NODE_FIELDS[type])) {
if (has(node, field)) {
if (deep) {
newNode[field] = (0, _generated.isFile)(node) && field === "comments" ? maybeCloneComments(node.comments, deep, withoutLoc) : cloneIfNodeOrArray(node[field], true, withoutLoc);
} else {
newNode[field] = node[field];
}
}
}
}
if (has(node, "loc")) {
if (withoutLoc) {
newNode.loc = null;
} else {
newNode.loc = node.loc;
}
}
if (has(node, "leadingComments")) {
newNode.leadingComments = maybeCloneComments(node.leadingComments, deep, withoutLoc);
}
if (has(node, "innerComments")) {
newNode.innerComments = maybeCloneComments(node.innerComments, deep, withoutLoc);
}
if (has(node, "trailingComments")) {
newNode.trailingComments = maybeCloneComments(node.trailingComments, deep, withoutLoc);
}
if (has(node, "extra")) {
newNode.extra = Object.assign({}, node.extra);
}
return newNode;
}
function maybeCloneComments(comments, deep, withoutLoc) {
if (!comments || !deep) {
return comments;
}
return comments.map(({
type,
value,
loc
}) => {
if (withoutLoc) {
return {
type,
value,
loc: null
};
}
return {
type,
value,
loc
};
});
}
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