Use the basic original original of the@Babel/Types framework when analyzing the Java source code

Use@Babel/Types framework to analyze the basic principles of Java source code Overview: @Babel/Types is a core framework of the Babel compiler, which is used to analyze, transform and generate ABSTRACT SYNTAX TREE (AST).AST is an abstract of the source code that it represents all levels and elements of the code with a tree structure.By operating AST, we can perform static analysis, conversion and generation of code. 1. Introduce@Babel/Types package @Babel/Types is an independent NPM package, which can be introduced into the project through the following command: shell npm install @babel/types 2. Analyze the Java source code as AST Pay the Java source code by using@Babel/Parser package to generate the corresponding AST.The following is a simple example: import Parser from '@babel/parser'; import { generate } from '@babel/generator'; const code = ` public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } } `; const ast = Parser.parse(code); The above code analyzes Java code into AST through@Babel/Parser and stores in AST variables. 3. Traversing and operating AST Once there is AST, we can use the API provided by@Babel/Types to traverse and operate the AST node.Below is a simple example. Replace the "Hello, World!" In the above code to "Hello, the world!": import { visit } from '@babel/types'; const visitor = { StringLiteral(path) { if (path.node.value === 'Hello, World!') { path.node.value = 'Hello, the world!'; } }, }; visit(ast, visitor); The above code is traversed through the AST node, and found the Stringliteral type node, and modify its value to "Hello, the world!". 4. Generate new Java source code After completing AST traversal and operation, you can use@Babel/Generator to convert AST to Java source code.The following is an example: const { code: newCode } = generate(ast); console.log(newCode); The above code converts AST to the new Java source code and prints it through console.log. Summarize: The basic principle of using the@Babel/Types framework to analyze the Java source code is to analyze the Java code as AST through@Babel/Parser, and then use the API provided by@Babel/Types to traverse and operate the AST node.AST converts back to Java source code.This method enables us to easily analyze, transform, and generate Java code easily. Reference materials: -Babel official document: https://babeljs.io/docs/en/babel-parser -Babel github warehouse: https://github.com/babel/babel