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authorlittleblack111 <littleblack11111@gmail.com>2024-03-14 17:01:52 +0800
committerlittleblack111 <littleblack11111@gmail.com>2024-03-14 17:01:52 +0800
commit7f8f993637e698d63aeb2e08f053e0948d9f4d31 (patch)
tree52d5e508a4ff2e4fa80dde457bc52e662a3887ab /node_modules/uglify-js/lib/transform.js
parent7210ae26624cc6c6ad6725040e388b31991b7907 (diff)
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-/***********************************************************************
-
- A JavaScript tokenizer / parser / beautifier / compressor.
- https://github.com/mishoo/UglifyJS2
-
- -------------------------------- (C) ---------------------------------
-
- Author: Mihai Bazon
- <mihai.bazon@gmail.com>
- http://mihai.bazon.net/blog
-
- Distributed under the BSD license:
-
- Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com>
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above
- copyright notice, this list of conditions and the following
- disclaimer.
-
- * Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- SUCH DAMAGE.
-
- ***********************************************************************/
-
-"use strict";
-
-// Tree transformer helpers.
-
-function TreeTransformer(before, after) {
- TreeWalker.call(this);
- this.before = before;
- this.after = after;
-}
-TreeTransformer.prototype = new TreeWalker;
-
-(function(undefined){
-
- function _(node, descend) {
- node.DEFMETHOD("transform", function(tw, in_list){
- var x, y;
- tw.push(this);
- if (tw.before) x = tw.before(this, descend, in_list);
- if (x === undefined) {
- if (!tw.after) {
- x = this;
- descend(x, tw);
- } else {
- tw.stack[tw.stack.length - 1] = x = this;
- descend(x, tw);
- y = tw.after(x, in_list);
- if (y !== undefined) x = y;
- }
- }
- tw.pop(this);
- return x;
- });
- };
-
- function do_list(list, tw) {
- return MAP(list, function(node){
- return node.transform(tw, true);
- });
- };
-
- _(AST_Node, noop);
-
- _(AST_LabeledStatement, function(self, tw){
- self.label = self.label.transform(tw);
- self.body = self.body.transform(tw);
- });
-
- _(AST_SimpleStatement, function(self, tw){
- self.body = self.body.transform(tw);
- });
-
- _(AST_Block, function(self, tw){
- self.body = do_list(self.body, tw);
- });
-
- _(AST_DWLoop, function(self, tw){
- self.condition = self.condition.transform(tw);
- self.body = self.body.transform(tw);
- });
-
- _(AST_For, function(self, tw){
- if (self.init) self.init = self.init.transform(tw);
- if (self.condition) self.condition = self.condition.transform(tw);
- if (self.step) self.step = self.step.transform(tw);
- self.body = self.body.transform(tw);
- });
-
- _(AST_ForIn, function(self, tw){
- self.init = self.init.transform(tw);
- self.object = self.object.transform(tw);
- self.body = self.body.transform(tw);
- });
-
- _(AST_With, function(self, tw){
- self.expression = self.expression.transform(tw);
- self.body = self.body.transform(tw);
- });
-
- _(AST_Exit, function(self, tw){
- if (self.value) self.value = self.value.transform(tw);
- });
-
- _(AST_LoopControl, function(self, tw){
- if (self.label) self.label = self.label.transform(tw);
- });
-
- _(AST_If, function(self, tw){
- self.condition = self.condition.transform(tw);
- self.body = self.body.transform(tw);
- if (self.alternative) self.alternative = self.alternative.transform(tw);
- });
-
- _(AST_Switch, function(self, tw){
- self.expression = self.expression.transform(tw);
- self.body = do_list(self.body, tw);
- });
-
- _(AST_Case, function(self, tw){
- self.expression = self.expression.transform(tw);
- self.body = do_list(self.body, tw);
- });
-
- _(AST_Try, function(self, tw){
- self.body = do_list(self.body, tw);
- if (self.bcatch) self.bcatch = self.bcatch.transform(tw);
- if (self.bfinally) self.bfinally = self.bfinally.transform(tw);
- });
-
- _(AST_Catch, function(self, tw){
- self.argname = self.argname.transform(tw);
- self.body = do_list(self.body, tw);
- });
-
- _(AST_Definitions, function(self, tw){
- self.definitions = do_list(self.definitions, tw);
- });
-
- _(AST_VarDef, function(self, tw){
- self.name = self.name.transform(tw);
- if (self.value) self.value = self.value.transform(tw);
- });
-
- _(AST_Lambda, function(self, tw){
- if (self.name) self.name = self.name.transform(tw);
- self.argnames = do_list(self.argnames, tw);
- self.body = do_list(self.body, tw);
- });
-
- _(AST_Call, function(self, tw){
- self.expression = self.expression.transform(tw);
- self.args = do_list(self.args, tw);
- });
-
- _(AST_Seq, function(self, tw){
- self.car = self.car.transform(tw);
- self.cdr = self.cdr.transform(tw);
- });
-
- _(AST_Dot, function(self, tw){
- self.expression = self.expression.transform(tw);
- });
-
- _(AST_Sub, function(self, tw){
- self.expression = self.expression.transform(tw);
- self.property = self.property.transform(tw);
- });
-
- _(AST_Unary, function(self, tw){
- self.expression = self.expression.transform(tw);
- });
-
- _(AST_Binary, function(self, tw){
- self.left = self.left.transform(tw);
- self.right = self.right.transform(tw);
- });
-
- _(AST_Conditional, function(self, tw){
- self.condition = self.condition.transform(tw);
- self.consequent = self.consequent.transform(tw);
- self.alternative = self.alternative.transform(tw);
- });
-
- _(AST_Array, function(self, tw){
- self.elements = do_list(self.elements, tw);
- });
-
- _(AST_Object, function(self, tw){
- self.properties = do_list(self.properties, tw);
- });
-
- _(AST_ObjectProperty, function(self, tw){
- self.value = self.value.transform(tw);
- });
-
-})();