| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast; |
| |
| import java.util.List; |
| |
| import org.codehaus.groovy.ast.stmt.BlockStatement; |
| import org.codehaus.groovy.ast.stmt.Statement; |
| import org.objectweb.asm.Opcodes; |
| |
| /** |
| * Represents a method declaration |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class MethodNode extends AnnotatedNode implements Opcodes { |
| |
| private final String name; |
| private int modifiers; |
| private ClassNode returnType; |
| private Parameter[] parameters; |
| private boolean hasDefaultValue = false; |
| private Statement code; |
| private boolean dynamicReturnType; |
| private VariableScope variableScope; |
| private final ClassNode[] exceptions; |
| |
| // type spec for generics |
| private GenericsType[] genericsTypes=null; |
| |
| public MethodNode(String name, int modifiers, ClassNode returnType, Parameter[] parameters, ClassNode[] exceptions, Statement code) { |
| this.name = name; |
| this.modifiers = modifiers; |
| this.code = code; |
| this.returnType = returnType; |
| if (returnType==null) this.returnType = ClassHelper.OBJECT_TYPE; |
| VariableScope scope = new VariableScope(); |
| setVariableScope(scope); |
| setParameters(parameters); |
| |
| this.exceptions = exceptions; |
| } |
| |
| /** |
| * The type descriptor for a method node is a string containing the name of the method, its return type, |
| * and its parameter types in a canonical form. For simplicity, I'm using the format of a Java declaration |
| * without parameter names, and with $dynamic as the type for any dynamically typed values. |
| */ |
| // TODO: add test case for type descriptor |
| public String getTypeDescriptor() { |
| StringBuffer buf = new StringBuffer(name.length()+parameters.length*10); |
| // buf.append(dynamicReturnType ? "$dynamic" : cleanupTypeName(returnType)); |
| // |
| buf.append(returnType.getName()); // br to replace the above. Dynamic type returns Object. |
| // |
| buf.append(' '); |
| buf.append(name); |
| buf.append('('); |
| for (int i = 0; i < parameters.length; i++) { |
| if (i > 0) { |
| buf.append(", "); |
| } |
| Parameter param = parameters[i]; |
| buf.append(param.getType().getName()); |
| } |
| buf.append(')'); |
| return buf.toString(); |
| } |
| |
| public boolean isVoidMethod() { |
| return returnType==ClassHelper.VOID_TYPE; |
| } |
| |
| public Statement getCode() { |
| return code; |
| } |
| |
| public void setCode(Statement code) { |
| this.code = code; |
| } |
| |
| public int getModifiers() { |
| return modifiers; |
| } |
| |
| public void setModifiers(int modifiers) { |
| this.modifiers = modifiers; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Parameter[] getParameters() { |
| return parameters; |
| } |
| |
| public void setParameters(Parameter[] parameters) { |
| VariableScope scope = new VariableScope(); |
| this.parameters = parameters; |
| if (parameters != null && parameters.length > 0) { |
| for (int i = 0; i < parameters.length; i++) { |
| Parameter para = parameters[i]; |
| if (para.hasInitialExpression()) { |
| this.hasDefaultValue = true; |
| } |
| para.setInStaticContext(isStatic()); |
| scope.getDeclaredVariables().put(para.getName(),para); |
| } |
| } |
| setVariableScope(scope); |
| } |
| |
| public ClassNode getReturnType() { |
| return returnType; |
| } |
| |
| public VariableScope getVariableScope() { |
| return variableScope; |
| } |
| |
| public void setVariableScope(VariableScope variableScope) { |
| this.variableScope = variableScope; |
| variableScope.setInStaticContext(isStatic()); |
| } |
| |
| public boolean isDynamicReturnType() { |
| return dynamicReturnType; |
| } |
| |
| public boolean isAbstract() { |
| return (modifiers & ACC_ABSTRACT) != 0; |
| } |
| |
| public boolean isStatic() { |
| return (modifiers & ACC_STATIC) != 0; |
| } |
| |
| public boolean isPublic() { |
| return (modifiers & ACC_PUBLIC) != 0; |
| } |
| |
| public boolean isProtected() { |
| return (modifiers & ACC_PROTECTED) != 0; |
| } |
| |
| public boolean hasDefaultValue() { |
| return this.hasDefaultValue; |
| } |
| |
| public String toString() { |
| return super.toString() + "[name: " + name + "]"; |
| } |
| |
| public void setReturnType(ClassNode returnType) { |
| this.returnType = returnType; |
| } |
| |
| public ClassNode[] getExceptions() { |
| return exceptions; |
| } |
| |
| public Statement getFirstStatement(){ |
| if (code == null) return null; |
| Statement first = code; |
| while (first instanceof BlockStatement) { |
| List list = ((BlockStatement) first).getStatements(); |
| if (list.isEmpty()) { |
| first=null; |
| } else { |
| first = (Statement) list.get(0); |
| } |
| } |
| return first; |
| } |
| |
| public GenericsType[] getGenericsTypes() { |
| return genericsTypes; |
| } |
| |
| public void setGenericsTypes(GenericsType[] genericsTypes) { |
| this.genericsTypes = genericsTypes; |
| } |
| } |