| /******************************************************************************* |
| * Copyright (c) 2000, 2009 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 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.ast; |
| |
| import org.eclipse.jdt.internal.compiler.codegen.CodeStream; |
| import org.eclipse.jdt.internal.compiler.codegen.ExceptionLabel; |
| import org.eclipse.jdt.internal.compiler.lookup.BlockScope; |
| import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding; |
| |
| /** |
| * Extra behavior for statements which are generating subroutines |
| */ |
| public abstract class SubRoutineStatement extends Statement { |
| |
| public static void reenterAllExceptionHandlers(SubRoutineStatement[] subroutines, int max, CodeStream codeStream) { |
| if (subroutines == null) return; |
| if (max < 0) max = subroutines.length; |
| for (int i = 0; i < max; i++) { |
| SubRoutineStatement sub = subroutines[i]; |
| sub.enterAnyExceptionHandler(codeStream); |
| sub.enterDeclaredExceptionHandlers(codeStream); |
| } |
| } |
| |
| ExceptionLabel anyExceptionLabel; |
| protected SwitchExpression switchExpression = null; |
| |
| public ExceptionLabel enterAnyExceptionHandler(CodeStream codeStream) { |
| |
| if (this.anyExceptionLabel == null) { |
| this.anyExceptionLabel = new ExceptionLabel(codeStream, null /*any exception*/); |
| } |
| this.anyExceptionLabel.placeStart(); |
| return this.anyExceptionLabel; |
| } |
| |
| public void enterDeclaredExceptionHandlers(CodeStream codeStream) { |
| // do nothing by default |
| } |
| |
| public void exitAnyExceptionHandler() { |
| if (this.anyExceptionLabel != null) { |
| this.anyExceptionLabel.placeEnd(); |
| } |
| } |
| |
| public void exitDeclaredExceptionHandlers(CodeStream codeStream) { |
| // do nothing by default |
| } |
| |
| |
| /** |
| * Generate an invocation of a subroutine (e.g. jsr finally) in current context. |
| * @param currentScope |
| * @param codeStream |
| * @param targetLocation |
| * @param stateIndex |
| * @param secretLocal |
| * @return boolean, <code>true</code> if the generated code will abrupt completion |
| */ |
| public abstract boolean generateSubRoutineInvocation(BlockScope currentScope, CodeStream codeStream, Object targetLocation, int stateIndex, LocalVariableBinding secretLocal); |
| |
| public abstract boolean isSubRoutineEscaping(); |
| |
| public void placeAllAnyExceptionHandler() { |
| this.anyExceptionLabel.place(); |
| } |
| |
| public SwitchExpression getSwitchExpression() { |
| return this.switchExpression; |
| } |
| |
| public void setSwitchExpression(SwitchExpression switchExpression) { |
| this.switchExpression = switchExpression; |
| } |
| } |