Befor generating

2026-06-01 13:17:37 +02:00
parent 3383f4bf4a
commit 1aa1b5f625
6756 changed files with 649946 additions and 1 deletions
@@ -0,0 +1,135 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(factory((global.estreeWalker = {})));
+}(this, (function (exports) { 'use strict';
+
+	function walk(ast, { enter, leave }) {
+		return visit(ast, null, enter, leave);
+	}
+
+	let should_skip = false;
+	let should_remove = false;
+	let replacement = null;
+	const context = {
+		skip: () => should_skip = true,
+		remove: () => should_remove = true,
+		replace: (node) => replacement = node
+	};
+
+	function replace(parent, prop, index, node) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop][index] = node;
+			} else {
+				parent[prop] = node;
+			}
+		}
+	}
+
+	function remove(parent, prop, index) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop].splice(index, 1);
+			} else {
+				delete parent[prop];
+			}
+		}
+	}
+
+	function visit(
+		node,
+		parent,
+		enter,
+		leave,
+		prop,
+		index
+	) {
+		if (node) {
+			if (enter) {
+				const _should_skip = should_skip;
+				const _should_remove = should_remove;
+				const _replacement = replacement;
+				should_skip = false;
+				should_remove = false;
+				replacement = null;
+
+				enter.call(context, node, parent, prop, index);
+
+				if (replacement) {
+					node = replacement;
+					replace(parent, prop, index, node);
+				}
+
+				if (should_remove) {
+					remove(parent, prop, index);
+				}
+
+				const skipped = should_skip;
+				const removed = should_remove;
+
+				should_skip = _should_skip;
+				should_remove = _should_remove;
+				replacement = _replacement;
+
+				if (skipped) return node;
+				if (removed) return null;
+			}
+
+			for (const key in node) {
+				const value = (node )[key];
+
+				if (typeof value !== 'object') {
+					continue;
+				}
+
+				else if (Array.isArray(value)) {
+					for (let j = 0, k = 0; j < value.length; j += 1, k += 1) {
+						if (value[j] !== null && typeof value[j].type === 'string') {
+							if (!visit(value[j], node, enter, leave, key, k)) {
+								// removed
+								j--;
+							}
+						}
+					}
+				}
+
+				else if (value !== null && typeof value.type === 'string') {
+					visit(value, node, enter, leave, key, null);
+				}
+			}
+
+			if (leave) {
+				const _replacement = replacement;
+				const _should_remove = should_remove;
+				replacement = null;
+				should_remove = false;
+
+				leave.call(context, node, parent, prop, index);
+
+				if (replacement) {
+					node = replacement;
+					replace(parent, prop, index, node);
+				}
+
+				if (should_remove) {
+					remove(parent, prop, index);
+				}
+
+				const removed = should_remove;
+
+				replacement = _replacement;
+				should_remove = _should_remove;
+
+				if (removed) return null;
+			}
+		}
+
+		return node;
+	}
+
+	exports.walk = walk;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+})));