| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| public class LocalVariablesTests { |
| public static void nop() { |
| // used to allow breakpoint on otherwise empty lines |
| } |
| |
| public static void simpleTest() { |
| nop(); // should see no local variables here |
| int i1 = 0; |
| nop(); // should see 1 local variable: i1 |
| int i2 = 1; |
| nop(); // should see 2 local variables: i1 && i2 |
| } |
| |
| public static void outerMethod() { |
| int i1 = 0; |
| innerMethod(); |
| // i1 visible and i1==0, i2 not visible |
| int i2 = 1; |
| nop(); |
| } |
| |
| public static void innerMethod() { |
| int i2 = 7; |
| nop(); // i1 not visible in the top stack frame, i2 visible |
| } |
| |
| public static void testFor() { |
| nop(); // should see no variable |
| for (int i = 0; i < 1; i++) { |
| nop(); // should see i |
| for (int j = 0; j < 1; j++) { |
| nop(); // should see i, j |
| Object obj = null; |
| nop(); // should see i, j, obj |
| obj = "foo"; |
| } |
| } |
| nop(); // should not see i and j |
| } |
| |
| public static void testIf(boolean cond) { |
| if (cond) { |
| Object ifObj = new String("true"); |
| nop(); |
| } else { |
| Object elseObj = new String("false"); |
| nop(); |
| } |
| nop(); |
| } |
| |
| public static void testWhile() { |
| int i = 0; |
| while (i < 1) { |
| int j = i/2; |
| nop(); // should see i & j |
| i++; |
| } |
| } |
| |
| public static void testTryCatch() { |
| try { |
| String str = null; |
| nop(); // should see str |
| str.length(); |
| } catch (NullPointerException ex) { |
| nop(); // should see ex |
| } finally { |
| nop(); // should see str |
| } |
| } |
| |
| public static void testAliasing() { |
| String str1 = new String("value"); |
| String str2 = str1; |
| nop(); |
| } |
| |
| public static void main(String[] args) { |
| simpleTest(); // @see LocalVariablesTests.testSimple() |
| outerMethod(); // @see LocalVariablesTests.testMethodCall() |
| testFor(); // @see LocalVariablesTests.testFor() |
| testIf(true); // @see LocalVariablesTests.testIf() |
| testIf(false); // @see LocalVariablesTests.testIf() |
| testWhile(); // @see LocalVariablesTests.testWhile() |
| testTryCatch();// @see LocalVariablesTests.testTryCatch() |
| testAliasing(); // @see LocalVariablesTests.testAliasing() |
| |
| } |
| } |