| package com.github.javaparser.generator.core.visitor; |
| |
| import com.github.javaparser.ast.CompilationUnit; |
| import com.github.javaparser.ast.body.MethodDeclaration; |
| import com.github.javaparser.ast.stmt.BlockStmt; |
| import com.github.javaparser.generator.VisitorGenerator; |
| import com.github.javaparser.utils.SourceRoot; |
| import com.github.javaparser.metamodel.BaseNodeMetaModel; |
| import com.github.javaparser.metamodel.PropertyMetaModel; |
| |
| import static com.github.javaparser.utils.CodeGenerationUtils.f; |
| |
| /** |
| * Generates JavaParser's VoidVisitorAdapter. |
| */ |
| public class GenericVisitorAdapterGenerator extends VisitorGenerator { |
| public GenericVisitorAdapterGenerator(SourceRoot sourceRoot) { |
| super(sourceRoot, "com.github.javaparser.ast.visitor", "GenericVisitorAdapter", "R", "A", true); |
| } |
| |
| @Override |
| protected void generateVisitMethodBody(BaseNodeMetaModel node, MethodDeclaration visitMethod, CompilationUnit compilationUnit) { |
| visitMethod.getParameters().forEach(p -> p.setFinal(true)); |
| |
| BlockStmt body = visitMethod.getBody().get(); |
| body.getStatements().clear(); |
| |
| body.addStatement("R result;"); |
| |
| final String resultCheck = "if (result != null) return result;"; |
| |
| for (PropertyMetaModel field : node.getAllPropertyMetaModels()) { |
| final String getter = field.getGetterMethodName() + "()"; |
| if (field.getNodeReference().isPresent()) { |
| if (field.isOptional()) { |
| body.addStatement(f("if (n.%s.isPresent()) {" + |
| " result = n.%s.get().accept(this, arg);" + |
| " %s" + |
| "}", getter, getter, resultCheck)); |
| } else { |
| body.addStatement(f("{ result = n.%s.accept(this, arg); %s }", getter, resultCheck)); |
| } |
| } |
| } |
| body.addStatement("return null;"); |
| } |
| } |