@Babel/Types Framework in the Java project actual application case

In the Java project, the@Babel/Types framework is a very powerful tool for operating and modifying the drawing grammar tree (AST) during code conversion and static analysis.It helps developers to easily handle JavaScript code and make custom conversion according to specific needs. The following is one of the actual application cases of@Babel/Types framework in the Java project: Case 1: Custom AST conversion Suppose you are developing a Java project, you need to make some custom conversion on the JavaScript code, such as replacing all variable names to uppercase. First of all, you need to introduce `@babel/types` in the Java project, you can use the following dependencies to achieve: <dependency> <groupId>org.babel</groupId> <artifactId>babel-types</artifactId> <version>7.15.7</version> </dependency> Then, you can write the following Java code example to achieve AST conversion: import org.babel.types.*; import org.babel.types.builders.*; import org.babel.types.visitors.AbstractNodeVisitor; public class ASTCustomTransformationExample { public static void main(String[] args) { // Create a root node representing AST FileNode ast = new FileNode(); // Create a variable node VariableDeclaratorNode variableNode = ASTBuilders .variableDeclarator() .id("myVariable") .init(ASTBuilders.literal().string("Hello")) .build(); // Create a variable declaration node VariableDeclarationNode declarationNode = ASTBuilders .variableDeclaration() .kind("let") .declarations(variableNode) .build(); // Add the variable declaration node to the root node ast.program().body().add(declarationNode); // Create a custom AST converter AbstractNodeVisitor visitor = new AbstractNodeVisitor() { @Override public void visit(IdentifierNode node) { String newName = node.name().toUpperCase(); node.name().set(newName); // Continue recursion throughout the node super.visit(node); } }; // Apply customized AST converter visitor.visit(ast); // The output conversion AST System.out.println(ast); } } In this example, we created a simple AST represent and defined a custom AST converter.The converter traverses each node of AST tree and converts variable names into uppercase.Finally, we output the converted AST. Through the above example, you can understand how to use the@Babel/Types framework in the Java project for custom AST conversion.@Babel/Types framework provides many different types of nodes and constructors, which can be used to create, operate and modify AST tree, so that you can flexibly handle JavaScript code.