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cilame 2022-03-15 22:42:30 +08:00
parent d7b09bb163
commit 9d6dcf87a9
1 changed files with 76 additions and 0 deletions
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76
tools/babel_asttool.js
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@ -666,6 +666,79 @@ function pas_ob_encfunc(ast){
traverse(ast, {VariableDeclarator: collect_removevars})
}
function del_sojson_extra(ast){
function get_root(path){
var list = [path]
while (path.parentPath){
path = path.parentPath
list.push(path)
}
return list[list.length-2]
}
function remove_temp1(path, fname){
var bind = path.scope.getBinding(fname)
for (var i = 0; i < bind.referencePaths.length; i++) {
var root = get_root(bind.referencePaths[i])
root.need_remove = true
root.traverse({Identifier: function(path){
var idbind = path.scope.getBinding(path.node.name)
if (!idbind) return
get_root(idbind.path).need_remove = true
}})
}
}
traverse(ast, {
'FunctionDeclaration|FunctionExpression': function(path){
if (path.getFunctionParent() == null){
var dbg = 0
var act = 0
var sta = 0
path.traverse({StringLiteral: function(path){
if (path.node.value == 'debugger'){ dbg = 1 }
if (path.node.value == 'action'){ act = 1 }
if (path.node.value == 'stateObject'){ sta = 1 }
}})
if ((dbg + act + sta) >= 2){
if (path.node.id && path.node.id.name){
remove_temp1(path, path.node.id.name)
}
}
var ex1 = 0
var ex2 = 0
var win = 0
path.traverse({StringLiteral: function(path){
if (path.node.value == "\\w+ *\\(\\) *{\\w+ *['|\"].+['|\"];? *}"){ ex1 = 1 }
if (path.node.value == "(\\\\[x|u](\\w){2,4})+"){ ex2 = 1 }
if (path.node.value == "window"){ win = 1 }
}})
if ((ex1 + ex2 + win) >= 2){
get_root(path).need_remove = true
remove_temp1(path, path.parentPath.node.callee.name)
remove_temp1(path, path.parentPath.parentPath.node.id.name)
}
var ex1 = 0
var ex2 = 0
var win = 0
path.traverse({StringLiteral: function(path){
if (path.node.value == "return (function() {}.constructor(\"return this\")( ));"){ ex1 = 1 }
if (path.node.value == "debug"){ ex2 = 1 }
if (path.node.value == "exception"){ win = 1 }
}})
if ((ex1 + ex2 + win) >= 2){
get_root(path).need_remove = true
remove_temp1(path, path.parentPath.node.callee.name)
remove_temp1(path, path.parentPath.parentPath.node.id.name)
}
}
}
})
traverse(ast, {enter: function(path){
if (path.need_remove){
path.remove()
}
}})
}
function del_ob_extra(ast){
var setinterval_func;
function find_gar_outfunc(path){
@ -938,6 +1011,9 @@ function muti_process_sojsondefusion(jscode){
traverse(ast, {IfStatement: ClearDeadCode}); // 清理死代码
traverse(ast, {BinaryExpression: {exit: calcBinary}}) // 二元运算合并
traverse(ast, {CatchClause: AddCatchLog}); // 给所有的 catch(e){} 后面第一条语句添加异常输出。
del_sojson_extra(ast)
var { code } = generator(ast, { jsescOption: { minimal: true, } });
return code;
}