| /* |
| $Id$ |
| |
| Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. |
| |
| Redistribution and use of this software and associated documentation |
| ("Software"), with or without modification, are permitted provided |
| that the following conditions are met: |
| |
| 1. Redistributions of source code must retain copyright |
| statements and notices. Redistributions must also contain a |
| copy of this document. |
| |
| 2. Redistributions in binary form must reproduce the |
| above copyright notice, this list of conditions and the |
| following disclaimer in the documentation and/or other |
| materials provided with the distribution. |
| |
| 3. The name "groovy" must not be used to endorse or promote |
| products derived from this Software without prior written |
| permission of The Codehaus. For written permission, |
| please contact info@codehaus.org. |
| |
| 4. Products derived from this Software may not be called "groovy" |
| nor may "groovy" appear in their names without prior written |
| permission of The Codehaus. "groovy" is a registered |
| trademark of The Codehaus. |
| |
| 5. Due credit should be given to The Codehaus - |
| http://groovy.codehaus.org/ |
| |
| THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| */ |
| 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 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 ClassNode[] exceptions; |
| |
| public MethodNode(String name, int modifiers, ClassNode returnType, Parameter[] parameters, ClassNode[] exceptions, Statement code) { |
| this.name = name; |
| this.modifiers = modifiers; |
| this.parameters = parameters; |
| this.code = code; |
| this.returnType = returnType; |
| if (returnType==null) this.returnType = ClassHelper.OBJECT_TYPE; |
| |
| variableScope = new VariableScope(); |
| 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()); |
| variableScope.getDeclaredVariables().put(para.getName(),para); |
| } |
| } |
| variableScope.setInStaticContext(isStatic()); |
| |
| 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 $dynamic as the type for any dynamically typed values. |
| */ |
| // TODO: add test case for type descriptor |
| public String getTypeDescriptor() { |
| StringBuffer buf = new StringBuffer(); |
| // buf.append(dynamicReturnType ? "$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 ClassNode getReturnType() { |
| return returnType; |
| } |
| |
| public VariableScope getVariableScope() { |
| return variableScope; |
| } |
| |
| public void setVariableScope(VariableScope variableScope) { |
| this.variableScope = variableScope; |
| } |
| |
| public boolean isDynamicReturnType() { |
| return dynamicReturnType; |
| } |
| |
| public boolean isAbstract() { |
| return (modifiers & ACC_ABSTRACT) != 0; |
| } |
| |
| public boolean isStatic() { |
| return (modifiers & ACC_STATIC) != 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; |
| if (code instanceof BlockStatement) { |
| List list = ((BlockStatement) code).getStatements(); |
| if (list.size()>0) return (Statement) list.get(0); |
| return null; |
| } |
| return code; |
| } |
| } |