AST操作之API用法-node节点

AST抽象语法树/6.AST操作之API用法-node节点/decode.js

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+var a = 123;

AST抽象语法树/6.AST操作之API用法-node节点/decode_obfuscator.js

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+const fs = require('fs');
+const { parse } = require('@babel/parser');
+const traverse = require('@babel/traverse').default;
+const generator = require('@babel/generator').default;
+let encode_file = './encode.js';
+
+let js_code = fs.readFileSync(encode_file, { encoding: 'utf-8' });
+let ast = parse(js_code, {
+    sourceType: 'module',
+});
+
+traverse(ast, {
+    NumericLiteral(path) {
+        path.replaceWith(
+            parse(3).program.body[0].expression
+        );
+    },
+});
+
+const output = generator(ast).code;
+console.log(output);

AST抽象语法树/6.AST操作之API用法-node节点/encode.js

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+var a = 123;