    1   /*
    2    $Id: ForTest.java 3419 2006-01-19 00:07:02Z blackdrag $
    3
    4    Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
    5
    6    Redistribution and use of this software and associated documentation
    7    ("Software"), with or without modification, are permitted provided
    8    that the following conditions are met:
    9
    10   1. Redistributions of source code must retain copyright
    11      statements and notices.  Redistributions must also contain a
    12      copy of this document.
    13
    14   2. Redistributions in binary form must reproduce the
    15      above copyright notice, this list of conditions and the
    16      following disclaimer in the documentation and/or other
    17      materials provided with the distribution.
    18
    19   3. The name "groovy" must not be used to endorse or promote
    20      products derived from this Software without prior written
    21      permission of The Codehaus.  For written permission,
    22      please contact info@codehaus.org.
    23
    24   4. Products derived from this Software may not be called "groovy"
    25      nor may "groovy" appear in their names without prior written
    26      permission of The Codehaus. "groovy" is a registered
    27      trademark of The Codehaus.
    28
    29   5. Due credit should be given to The Codehaus -
    30      http://groovy.codehaus.org/
    31
    32   THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
    33   ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
    34   NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
    35   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
    36   THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
    37   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    38   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    39   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    40   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    41   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    42   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
    43   OF THE POSSIBILITY OF SUCH DAMAGE.
    44
    45   */
    46
    47  package org.codehaus.groovy.classgen;
    48
    49  import org.codehaus.groovy.ast.*;
    50  import org.codehaus.groovy.ast.expr.VariableExpression;
    51  import org.codehaus.groovy.ast.stmt.ForStatement;
    52  import org.codehaus.groovy.ast.stmt.BlockStatement;
    53  import org.codehaus.groovy.ast.stmt.Statement;
    54  import org.codehaus.groovy.runtime.InvokerHelper;
    55  import org.codehaus.groovy.runtime.InvokerInvocationException;
    56
    57  /***
    58   * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
    59   * @author Pilho Kim
    60   * @version $Revision: 3419 $
    61   */
    62  public class ForTest extends TestSupport {
    63
    64      public void testNonLoop() throws Exception {
    65          ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
    66          classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));
    67
    68          Parameter[] parameters = {new Parameter(ClassHelper.OBJECT_TYPE, "coll")};
    69
    70          Statement statement = createPrintlnStatement(new VariableExpression("coll"));
    71          classNode.addMethod(new MethodNode("oneParamDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, parameters, ClassNode.EMPTY_ARRAY, statement));
    72
    73          Class fooClass = loadClass(classNode);
    74          assertTrue("Loaded a new class", fooClass != null);
    75
    76          Object bean = fooClass.newInstance();
    77          assertTrue("Managed to create bean", bean != null);
    78
    79          System.out.println("################ Now about to invoke a method without looping");
    80          Object value = new Integer(10000);
    81
    82          try {
    83              InvokerHelper.invokeMethod(bean, "oneParamDemo", new Object[] {value});
    84          } catch (InvokerInvocationException e) {
    85              System.out.println("Caught: " + e.getCause());
    86              e.getCause().printStackTrace();
    87              fail("Should not have thrown an exception");
    88          }
    89          System.out.println("################ Done");
    90      }
    91
    92
    93      public void testLoop() throws Exception {
    94          ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
    95          classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));
    96
    97          Parameter[] parameters = {new Parameter(ClassHelper.OBJECT_TYPE.makeArray(), "coll")};
    98
    99          Statement loopStatement = createPrintlnStatement(new VariableExpression("i"));
    100
    101         ForStatement statement = new ForStatement(new Parameter(ClassHelper.OBJECT_TYPE,"i"), new VariableExpression("coll"), loopStatement);
    102         classNode.addMethod(new MethodNode("iterateDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, parameters, ClassNode.EMPTY_ARRAY, statement));
    103
    104         Class fooClass = loadClass(classNode);
    105         assertTrue("Loaded a new class", fooClass != null);
    106
    107         Object bean = fooClass.newInstance();
    108         assertTrue("Managed to create bean", bean != null);
    109
    110         System.out.println("################ Now about to invoke a method with looping");
    111         Object[] array = {new Integer(1234), "abc", "def"};
    112
    113         try {
    114             InvokerHelper.invokeMethod(bean, "iterateDemo", new Object[]{array});
    115         } catch (InvokerInvocationException e) {
    116             System.out.println("Caught: " + e.getCause());
    117             e.getCause().printStackTrace();
    118             fail("Should not have thrown an exception");
    119         }
    120         System.out.println("################ Done");
    121     }
    122
    123     public void testManyParam() throws Exception {
    124         ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
    125         classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));
    126
    127         Parameter[] parameters = { new Parameter(ClassHelper.OBJECT_TYPE, "coll1"), new Parameter(ClassHelper.OBJECT_TYPE, "coll2"), new Parameter(ClassHelper.OBJECT_TYPE, "coll3") };
    128
    129         BlockStatement statement = new BlockStatement();
    130         statement.addStatement(createPrintlnStatement(new VariableExpression("coll1")));
    131         statement.addStatement(createPrintlnStatement(new VariableExpression("coll2")));
    132         statement.addStatement(createPrintlnStatement(new VariableExpression("coll3")));
    133
    134         classNode.addMethod(new MethodNode("manyParamDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, parameters, ClassNode.EMPTY_ARRAY, statement));
    135
    136         Class fooClass = loadClass(classNode);
    137         assertTrue("Loaded a new class", fooClass != null);
    138
    139         Object bean = fooClass.newInstance();
    140         assertTrue("Managed to create bean", bean != null);
    141
    142         System.out.println("################ Now about to invoke a method with many parameters");
    143         Object[] array = {new Integer(1000*1000), "foo-", "bar~"};
    144
    145         try {
    146             InvokerHelper.invokeMethod(bean, "manyParamDemo", array);
    147         } catch (InvokerInvocationException e) {
    148             System.out.println("Caught: " + e.getCause());
    149             e.getCause().printStackTrace();
    150             fail("Should not have thrown an exception");
    151         }
    152         System.out.println("################ Done");
    153     }
    154 }