| /******************************************************************************* |
| * Copyright (c) 2005, 2017 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.debug.ui; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.jdt.debug.core.IJavaArrayType; |
| import org.eclipse.jdt.debug.core.IJavaClassType; |
| import org.eclipse.jdt.debug.core.IJavaDebugTarget; |
| import org.eclipse.jdt.debug.core.IJavaObject; |
| import org.eclipse.jdt.debug.core.IJavaType; |
| import org.eclipse.jdt.debug.core.IJavaVariable; |
| import org.eclipse.jdt.internal.debug.core.model.JDINullValue; |
| import org.eclipse.jdt.internal.debug.core.model.JDIObjectValue; |
| import org.eclipse.jdt.internal.debug.core.model.JDIPlaceholderValue; |
| import org.eclipse.jdt.internal.debug.core.model.JDIReferenceListVariable; |
| import org.eclipse.jdt.internal.debug.ui.display.JavaInspectExpression; |
| import org.eclipse.ui.IActionFilter; |
| |
| import com.sun.jdi.ClassNotLoadedException; |
| |
| /** |
| * Provides the action filter for Java and Inspect actions |
| * |
| * @since 3.2 |
| */ |
| public class JavaVarActionFilter implements IActionFilter { |
| |
| /** |
| * The set or primitive types |
| */ |
| private static final Set<String> fgPrimitiveTypes = initPrimitiveTypes(); |
| |
| /** |
| * The predefined set of primitive types |
| * @return the set of predefined types |
| */ |
| private static Set<String> initPrimitiveTypes() { |
| HashSet<String> set = new HashSet<>(8); |
| set.add("short"); //$NON-NLS-1$ |
| set.add("int"); //$NON-NLS-1$ |
| set.add("long"); //$NON-NLS-1$ |
| set.add("float"); //$NON-NLS-1$ |
| set.add("double"); //$NON-NLS-1$ |
| set.add("boolean"); //$NON-NLS-1$ |
| set.add("byte"); //$NON-NLS-1$ |
| set.add("char"); //$NON-NLS-1$ |
| set.add("null"); //$NON-NLS-1$ |
| return set; |
| } |
| |
| /** |
| * Determines if the declared value is the same as the concrete value |
| * @param var the variable to inspect |
| * @return true if the types are the same, false otherwise |
| */ |
| protected boolean isDeclaredSameAsConcrete(IJavaVariable var) { |
| try { |
| IValue value = var.getValue(); |
| if (value instanceof JDINullValue) { |
| return false; |
| } |
| return !var.getReferenceTypeName().equals(value.getReferenceTypeName()); |
| } |
| catch(DebugException e) {JDIDebugUIPlugin.log(e);} |
| return false; |
| } |
| |
| /** |
| * Determines if the passed object is a primitive type or not |
| * @param obj the obj to test |
| * @return true if the object is primitive, false otherwise |
| */ |
| protected boolean isPrimitiveType(Object obj) { |
| if(obj instanceof IJavaVariable) { |
| try { |
| return !fgPrimitiveTypes.contains(removeArray(((IJavaVariable) obj).getReferenceTypeName())); |
| } |
| catch (DebugException e) { |
| if(!(e.getStatus().getException() instanceof ClassNotLoadedException)) { |
| JDIDebugUIPlugin.log(e); |
| } |
| return false; |
| } |
| } |
| else if(obj instanceof JavaInspectExpression) { |
| try { |
| JavaInspectExpression exp = (JavaInspectExpression)obj; |
| IValue value = exp.getValue(); |
| if (value != null) { |
| return fgPrimitiveTypes.contains(removeArray(value.getReferenceTypeName())); |
| } |
| } catch (DebugException e) {JDIDebugUIPlugin.log(e);} |
| } |
| return false; |
| } |
| |
| /** |
| * This method returns if the specified object is an array or not |
| * @param object the object to test |
| * @return true if the specified object has the <code>IJavaType</code> of <code>JDIArrayType</code>, false otherwise |
| * @since 3.3 |
| */ |
| protected boolean isArrayType(Object object) { |
| if(object instanceof IJavaVariable) { |
| try { |
| IJavaType type = ((IJavaVariable)object).getJavaType(); |
| if(type != null) { |
| return type instanceof IJavaArrayType; |
| } |
| } |
| catch (DebugException e) {JDIDebugUIPlugin.log(e);} |
| } |
| return false; |
| } |
| |
| /** |
| * Determines if the ref type of the value is primitive |
| * |
| * @param var the variable to inspect |
| * @return true if the the values ref type is primitive, false otherwise |
| */ |
| protected boolean isValuePrimitiveType(IValue value) { |
| try { |
| return !fgPrimitiveTypes.contains(removeArray(value.getReferenceTypeName())); |
| } |
| catch (DebugException e) {JDIDebugUIPlugin.log(e);} |
| return false; |
| } |
| |
| /** |
| * Method removes the array declaration characters to return just the type |
| * |
| * @param typeName the type name we want to strip the array delimiters from |
| * @return the altered type |
| */ |
| protected String removeArray(String type) { |
| if (type != null) { |
| int index= type.indexOf('['); |
| if (index > 0) { |
| return type.substring(0, index); |
| } |
| } |
| return type; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionFilter#testAttribute(java.lang.Object, java.lang.String, java.lang.String) |
| */ |
| @Override |
| public boolean testAttribute(Object target, String name, String value) { |
| if (target instanceof IJavaVariable) { |
| IJavaVariable var = (IJavaVariable) target; |
| IValue varValue; |
| try { |
| varValue = var.getValue(); |
| if (name.equals("PrimitiveVariableActionFilter")) { //$NON-NLS-1$ |
| if (value.equals("isPrimitive")) { //$NON-NLS-1$ |
| return isPrimitiveType(var); |
| } |
| else if(value.equals("isArray")) { //$NON-NLS-1$ |
| return isArrayType(var); |
| } |
| else if (value.equals("isValuePrimitive")) { //$NON-NLS-1$ |
| return isValuePrimitiveType(varValue); |
| } |
| } |
| if (name.equals("JavaVariableFilter")) { //$NON-NLS-1$ |
| if (value.equals("isInstanceRetrievalAvailable")) { //$NON-NLS-1$ |
| return isInstanceRetrievalAvailable(var); |
| } |
| if(value.equals("isNullValue")) { //$NON-NLS-1$ |
| return varValue instanceof JDINullValue; |
| } |
| if (value.equals("isReferenceListVariable")) { //$NON-NLS-1$ |
| return var instanceof JDIReferenceListVariable; |
| } |
| if (value.equals("isPlaceholderValue")) { //$NON-NLS-1$ |
| return varValue instanceof JDIPlaceholderValue; |
| } |
| if (value.equals("isObjectValue")) { //$NON-NLS-1$ |
| return varValue != null && JDIObjectValue.class.isAssignableFrom(varValue.getClass()); |
| } |
| } |
| else if (name.equals("ConcreteVariableActionFilter") && value.equals("isConcrete")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| return isDeclaredSameAsConcrete(var); |
| } |
| else if (name.equals("JavaVariableActionFilter")) { //$NON-NLS-1$ |
| if(value.equals("instanceFilter")) { //$NON-NLS-1$ |
| return !var.isStatic() && (varValue instanceof IJavaObject) && (((IJavaObject)varValue).getJavaType() instanceof IJavaClassType) && ((IJavaDebugTarget)var.getDebugTarget()).supportsInstanceBreakpoints(); |
| } |
| if(value.equals("isValidField")) { //$NON-NLS-1$ |
| return !var.isFinal() & !(var.isFinal() & var.isStatic()); |
| } |
| } |
| else if (name.equals("DetailFormatterFilter") & (varValue instanceof IJavaObject)) { //$NON-NLS-1$ |
| if(value.equals("isDefined")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasAssociatedDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| if(value.equals("inInterface")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasInterfaceDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| if(value.equals("inSuperclass")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasSuperclassDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| } |
| } catch (DebugException e) {} |
| } |
| else if (target instanceof JavaInspectExpression) { |
| JavaInspectExpression exp = (JavaInspectExpression) target; |
| if (name.equals("PrimitiveVariableActionFilter") && value.equals("isNotPrimitive")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| return !isPrimitiveType(exp); |
| } |
| else if (name.equals("DetailFormatterFilter")) { //$NON-NLS-1$ |
| try { |
| IValue varValue = exp.getValue(); |
| if(varValue instanceof IJavaObject) { |
| if(value.equals("isDefined")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasAssociatedDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| if(value.equals("inInterface")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasInterfaceDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| if(value.equals("inSuperclass")) { //$NON-NLS-1$ |
| return JavaDetailFormattersManager.getDefault().hasSuperclassDetailFormatter(((IJavaObject)varValue).getJavaType()); |
| } |
| } |
| } |
| catch (DebugException exception) {} |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns whether this variable's VM supports instance/reference information. |
| * |
| * @param var variable |
| * @return whether this variable's VM supports instance/reference information |
| */ |
| protected boolean isInstanceRetrievalAvailable(IJavaVariable var) { |
| return ((IJavaDebugTarget)var.getDebugTarget()).supportsInstanceRetrieval() && !(var instanceof JDIReferenceListVariable); |
| } |
| } |
