bundles/org.eclipse.wst.jsdt.debug.core/src/org/eclipse/wst/jsdt/debug/internal/core/model/JavaScriptValue.java - jsdt/webtools.jsdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.wst.jsdt.debug.internal.core.model;

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.core.model.IValue;
 import org.eclipse.debug.core.model.IVariable;
 import org.eclipse.jface.text.Document;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.text.edits.TextEdit;
 import org.eclipse.wst.jsdt.core.ToolFactory;
 import org.eclipse.wst.jsdt.core.formatter.CodeFormatter;
 import org.eclipse.wst.jsdt.debug.core.jsdi.ArrayReference;
 import org.eclipse.wst.jsdt.debug.core.jsdi.BooleanValue;
 import org.eclipse.wst.jsdt.debug.core.jsdi.FunctionReference;
 import org.eclipse.wst.jsdt.debug.core.jsdi.NullValue;
 import org.eclipse.wst.jsdt.debug.core.jsdi.NumberValue;
 import org.eclipse.wst.jsdt.debug.core.jsdi.ObjectReference;
 import org.eclipse.wst.jsdt.debug.core.jsdi.Property;
 import org.eclipse.wst.jsdt.debug.core.jsdi.StringValue;
 import org.eclipse.wst.jsdt.debug.core.jsdi.UndefinedValue;
 import org.eclipse.wst.jsdt.debug.core.jsdi.Value;
 import org.eclipse.wst.jsdt.debug.core.jsdi.VirtualMachine;
 import org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue;
 import org.eclipse.wst.jsdt.debug.core.model.JavaScriptDebugModel;
 import org.eclipse.wst.jsdt.debug.internal.core.JavaScriptDebugPlugin;

 /**
  * Default implementation of {@link IValue}
  *
  * @since 1.0
  */
 public class JavaScriptValue extends JavaScriptDebugElement implements IJavaScriptValue {

 	public static final IVariable[] NO_VARIABLES = new IVariable[0];

 	/**
 	 * the '[proto]' value
 	 */
 	public static final String PROTO = "[proto]"; //$NON-NLS-1$
 	/**
 	 * the 'constructor' value
 	 */
 	public static final String CONSTRUCTOR = "constructor"; //$NON-NLS-1$
 	/**
 	 * The 'this' value
 	 */
 	public static final String THIS = "this"; //$NON-NLS-1$

 	private Value value;
 	private List properties;

 	/**
 	 * Constructor
 	 *
 	 * @param target
 	 * @param value
 	 */
 	public JavaScriptValue(JavaScriptDebugTarget target, Value value) {
 		super(target);
 		this.value = value;
 	}

 	/**
 	 * Hook to return the underlying value for this {@link JavaScriptValue}
 	 *
 	 * @return the underlying {@link Value}
 	 */
 	protected Value getUnderlyingValue() {
 		return this.value;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue#getDetailString()
 	 */
 	public String getDetailString() {
 		if (this.value instanceof ArrayReference) {
 			ArrayReference array = (ArrayReference) this.value;
 			List values = array.getValues();
 			Iterator iterator = values.iterator();
 			if (! iterator.hasNext())
 			    return "[]"; //$NON-NLS-1$
 			StringBuffer buffer = new StringBuffer();
 			buffer.append('[');
 			for (;;) {
 				Value jsValue = (Value) iterator.next();
 				buffer.append(getValueString(jsValue));
 				if (! iterator.hasNext())
 					return buffer.append(']').toString();
 				buffer.append(", "); //$NON-NLS-1$
 			}
 		}

 		if (this.value instanceof JavaScriptPrimitiveValue) {
 			JavaScriptPrimitiveValue nvalue = (JavaScriptPrimitiveValue)this.value;
 			return nvalue.stringValue();
 		}
 		if(this.value instanceof FunctionReference) {
 			FunctionReference f = (FunctionReference) this.value;
 			String src = f.functionBody();
 			if(src != null) {
 				CodeFormatter formatter = ToolFactory.createCodeFormatter(null);
 				TextEdit edit = formatter.format(CodeFormatter.K_JAVASCRIPT_UNIT, src, 0, src.length(), 0, null);
 				if(edit != null) {
 					Document doc = new Document(src);
 					try {
 						edit.apply(doc);
 						return doc.get();
 					} catch (Exception e) {
 						JavaScriptDebugPlugin.log(e);
 					}
 				}
 			}
 			return f.valueString();
 		}
 		if(this.value != null) {
 			return this.value.valueString();
 		}
 		return UNDEFINED;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.core.model.IValue#getReferenceTypeName()
 	 */
 	public String getReferenceTypeName() throws DebugException {
 		if (this.value != null) {
 			if (this.value instanceof ObjectReference) {
 				if (this.value instanceof NullValue) {
 				return NULL;
 				} else if (this.value instanceof ArrayReference) {
 					return ARRAY;
 				}else if (this.value instanceof FunctionReference) {
 					return FUNCTION;
 				}
 				return OBJECT;
 			} else if (this.value instanceof BooleanValue) {
 				return BOOLEAN;
 			} else if (this.value instanceof UndefinedValue) {
 				return UNDEFINED;
 			} else if (this.value instanceof NumberValue) {
 				return NUMBER;
 			} else if (this.value instanceof StringValue) {
 				return STRING;
 			}
 		}
 		return UNKNOWN;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.core.model.IValue#getValueString()
 	 */
 	public String getValueString() throws DebugException {
 		return getValueString(value);
 	}

 	private static String getValueString(Value jsValue) {
 		if (jsValue instanceof ObjectReference) {
 			ObjectReference ref = (ObjectReference) jsValue;
 			StringBuffer buffer = new StringBuffer();
 			Number id = ref.id();
 			if(id == null) {
 				buffer.append(jsValue.valueString());
 			}
 			else {
 				buffer.append(NLS.bind(ModelMessages.JavaScriptValue_object_value_label, new String[] {jsValue.valueString(), id.toString()}));
 			}
 			return buffer.toString();
 		}
 		if (jsValue instanceof NumberValue) {
 			NumberValue nvalue = (NumberValue) jsValue;
 			if (!nvalue.isNaN()) {
 				return JavaScriptDebugModel.numberToString(nvalue.value());
 			}
 		}
 		if (jsValue instanceof StringValue) {
 			StringBuffer buffer = new StringBuffer();
 			buffer.append('"');
 			buffer.append(jsValue.valueString().replaceAll("\"", "\\\\\"")); //$NON-NLS-1$//$NON-NLS-2$
 			buffer.append('"');
 			return buffer.toString();
 		}

 		return jsValue.valueString();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.core.model.IValue#getVariables()
 	 */
 	public synchronized IVariable[] getVariables() throws DebugException {
 		if (!hasVariables()) {
 			return NO_VARIABLES;
 		}
 		if (this.properties == null) {
 			final ObjectReference reference = (ObjectReference) this.value;
 			List underlyingProperties = reference.properties();
 			this.properties = new ArrayList(underlyingProperties.size()+1);
 			for (Iterator iterator = underlyingProperties.iterator(); iterator.hasNext();) {
 				Property property = (Property) iterator.next();
 				JavaScriptProperty jsdiProperty = new JavaScriptProperty(this, property);
 				this.properties.add(jsdiProperty);
 			}

 			// sort - array values (e.g integer names) first then alphabetically
 			Collections.sort(properties, new Comparator() {
 				public int compare(Object arg0, Object arg1) {
 					try {
 					String name0 = ((IVariable) arg0).getName();
 					String name1 = ((IVariable) arg1).getName();

 					if (Character.isDigit(name0.charAt(0))) {
 						if (Character.isDigit(name1.charAt(0)))
 							return Integer.valueOf(name0).compareTo(Integer.valueOf(name1));
 						return -1;
 					}
 					if (Character.isDigit(name1.charAt(0)))
 						return 1;

 					return name0.compareToIgnoreCase(name1);
 					} catch (DebugException e) {
 						return 0;
 					}
 				}
 			});

 			// add the prototype
 			Property prototype = new Property() {
 				public VirtualMachine virtualMachine() {
 					return reference.virtualMachine();
 				}
 				public String name() {
 					return PROTO;
 				}
 				public Value value() {
 					return reference.prototype();
 				}
 			};
 			properties.add(0, new JavaScriptProperty(this, prototype));

 			//add the constructor
 			Property constructor = new Property() {
 				public VirtualMachine virtualMachine() {
 					return reference.virtualMachine();
 				}
 				public String name() {
 					return CONSTRUCTOR;
 				}
 				public Value value() {
 					return reference.constructor();
 				}
 			};
 			properties.add(1, new JavaScriptProperty(this, constructor));
 		}
 		return (IVariable[]) this.properties.toArray(new IVariable[this.properties.size()]);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.core.model.IValue#hasVariables()
 	 */
 	public boolean hasVariables() throws DebugException {
 		if (this.value instanceof ObjectReference) {
 			return !(this.value instanceof NullValue);
 		}
 		return false;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.core.model.IValue#isAllocated()
 	 */
 	public boolean isAllocated() throws DebugException {
 		return this.properties != null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue#isNull()
 	 */
 	public boolean isNull() {
 		return this.value instanceof NullValue;
 	}

 	/**
 	 * Delegate method to create the proper kind of {@link IJavaScriptValue}
 	 *
 	 * @param target the target to create the value for
 	 * @param value the value to wrap
 	 * @return a new {@link IJavaScriptValue}
 	 */
 	public static IJavaScriptValue createValue(JavaScriptDebugTarget target, Value value) {
 		if(value instanceof BooleanValue ||
 				value instanceof NullValue ||
 				value instanceof NumberValue) {
 			return new JavaScriptPrimitiveValue(target, value);
 		}
 		return new JavaScriptValue(target, value);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2010, 2011 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.wst.jsdt.debug.internal.core.model;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.debug.core.DebugException;
	import org.eclipse.debug.core.model.IValue;
	import org.eclipse.debug.core.model.IVariable;
	import org.eclipse.jface.text.Document;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.text.edits.TextEdit;
	import org.eclipse.wst.jsdt.core.ToolFactory;
	import org.eclipse.wst.jsdt.core.formatter.CodeFormatter;
	import org.eclipse.wst.jsdt.debug.core.jsdi.ArrayReference;
	import org.eclipse.wst.jsdt.debug.core.jsdi.BooleanValue;
	import org.eclipse.wst.jsdt.debug.core.jsdi.FunctionReference;
	import org.eclipse.wst.jsdt.debug.core.jsdi.NullValue;
	import org.eclipse.wst.jsdt.debug.core.jsdi.NumberValue;
	import org.eclipse.wst.jsdt.debug.core.jsdi.ObjectReference;
	import org.eclipse.wst.jsdt.debug.core.jsdi.Property;
	import org.eclipse.wst.jsdt.debug.core.jsdi.StringValue;
	import org.eclipse.wst.jsdt.debug.core.jsdi.UndefinedValue;
	import org.eclipse.wst.jsdt.debug.core.jsdi.Value;
	import org.eclipse.wst.jsdt.debug.core.jsdi.VirtualMachine;
	import org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue;
	import org.eclipse.wst.jsdt.debug.core.model.JavaScriptDebugModel;
	import org.eclipse.wst.jsdt.debug.internal.core.JavaScriptDebugPlugin;

	/**
	* Default implementation of {@link IValue}
	*
	* @since 1.0
	*/
	public class JavaScriptValue extends JavaScriptDebugElement implements IJavaScriptValue {

	public static final IVariable[] NO_VARIABLES = new IVariable[0];

	/**
	* the '[proto]' value
	*/
	public static final String PROTO = "[proto]"; //$NON-NLS-1$
	/**
	* the 'constructor' value
	*/
	public static final String CONSTRUCTOR = "constructor"; //$NON-NLS-1$
	/**
	* The 'this' value
	*/
	public static final String THIS = "this"; //$NON-NLS-1$

	private Value value;
	private List properties;

	/**
	* Constructor
	*
	* @param target
	* @param value
	*/
	public JavaScriptValue(JavaScriptDebugTarget target, Value value) {
	super(target);
	this.value = value;
	}

	/**
	* Hook to return the underlying value for this {@link JavaScriptValue}
	*
	* @return the underlying {@link Value}
	*/
	protected Value getUnderlyingValue() {
	return this.value;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue#getDetailString()
	*/
	public String getDetailString() {
	if (this.value instanceof ArrayReference) {
	ArrayReference array = (ArrayReference) this.value;
	List values = array.getValues();
	Iterator iterator = values.iterator();
	if (! iterator.hasNext())
	return "[]"; //$NON-NLS-1$
	StringBuffer buffer = new StringBuffer();
	buffer.append('[');
	for (;;) {
	Value jsValue = (Value) iterator.next();
	buffer.append(getValueString(jsValue));
	if (! iterator.hasNext())
	return buffer.append(']').toString();
	buffer.append(", "); //$NON-NLS-1$
	}
	}

	if (this.value instanceof JavaScriptPrimitiveValue) {
	JavaScriptPrimitiveValue nvalue = (JavaScriptPrimitiveValue)this.value;
	return nvalue.stringValue();
	}
	if(this.value instanceof FunctionReference) {
	FunctionReference f = (FunctionReference) this.value;
	String src = f.functionBody();
	if(src != null) {
	CodeFormatter formatter = ToolFactory.createCodeFormatter(null);
	TextEdit edit = formatter.format(CodeFormatter.K_JAVASCRIPT_UNIT, src, 0, src.length(), 0, null);
	if(edit != null) {
	Document doc = new Document(src);
	try {
	edit.apply(doc);
	return doc.get();
	} catch (Exception e) {
	JavaScriptDebugPlugin.log(e);
	}
	}
	}
	return f.valueString();
	}
	if(this.value != null) {
	return this.value.valueString();
	}
	return UNDEFINED;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.core.model.IValue#getReferenceTypeName()
	*/
	public String getReferenceTypeName() throws DebugException {
	if (this.value != null) {
	if (this.value instanceof ObjectReference) {
	if (this.value instanceof NullValue) {
	return NULL;
	} else if (this.value instanceof ArrayReference) {
	return ARRAY;
	}else if (this.value instanceof FunctionReference) {
	return FUNCTION;
	}
	return OBJECT;
	} else if (this.value instanceof BooleanValue) {
	return BOOLEAN;
	} else if (this.value instanceof UndefinedValue) {
	return UNDEFINED;
	} else if (this.value instanceof NumberValue) {
	return NUMBER;
	} else if (this.value instanceof StringValue) {
	return STRING;
	}
	}
	return UNKNOWN;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.core.model.IValue#getValueString()
	*/
	public String getValueString() throws DebugException {
	return getValueString(value);
	}

	private static String getValueString(Value jsValue) {
	if (jsValue instanceof ObjectReference) {
	ObjectReference ref = (ObjectReference) jsValue;
	StringBuffer buffer = new StringBuffer();
	Number id = ref.id();
	if(id == null) {
	buffer.append(jsValue.valueString());
	}
	else {
	buffer.append(NLS.bind(ModelMessages.JavaScriptValue_object_value_label, new String[] {jsValue.valueString(), id.toString()}));
	}
	return buffer.toString();
	}
	if (jsValue instanceof NumberValue) {
	NumberValue nvalue = (NumberValue) jsValue;
	if (!nvalue.isNaN()) {
	return JavaScriptDebugModel.numberToString(nvalue.value());
	}
	}
	if (jsValue instanceof StringValue) {
	StringBuffer buffer = new StringBuffer();
	buffer.append('"');
	buffer.append(jsValue.valueString().replaceAll("\"", "\\\\\"")); //$NON-NLS-1$//$NON-NLS-2$
	buffer.append('"');
	return buffer.toString();
	}

	return jsValue.valueString();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.core.model.IValue#getVariables()
	*/
	public synchronized IVariable[] getVariables() throws DebugException {
	if (!hasVariables()) {
	return NO_VARIABLES;
	}
	if (this.properties == null) {
	final ObjectReference reference = (ObjectReference) this.value;
	List underlyingProperties = reference.properties();
	this.properties = new ArrayList(underlyingProperties.size()+1);
	for (Iterator iterator = underlyingProperties.iterator(); iterator.hasNext();) {
	Property property = (Property) iterator.next();
	JavaScriptProperty jsdiProperty = new JavaScriptProperty(this, property);
	this.properties.add(jsdiProperty);
	}

	// sort - array values (e.g integer names) first then alphabetically
	Collections.sort(properties, new Comparator() {
	public int compare(Object arg0, Object arg1) {
	try {
	String name0 = ((IVariable) arg0).getName();
	String name1 = ((IVariable) arg1).getName();

	if (Character.isDigit(name0.charAt(0))) {
	if (Character.isDigit(name1.charAt(0)))
	return Integer.valueOf(name0).compareTo(Integer.valueOf(name1));
	return -1;
	}
	if (Character.isDigit(name1.charAt(0)))
	return 1;

	return name0.compareToIgnoreCase(name1);
	} catch (DebugException e) {
	return 0;
	}
	}
	});

	// add the prototype
	Property prototype = new Property() {
	public VirtualMachine virtualMachine() {
	return reference.virtualMachine();
	}
	public String name() {
	return PROTO;
	}
	public Value value() {
	return reference.prototype();
	}
	};
	properties.add(0, new JavaScriptProperty(this, prototype));

	//add the constructor
	Property constructor = new Property() {
	public VirtualMachine virtualMachine() {
	return reference.virtualMachine();
	}
	public String name() {
	return CONSTRUCTOR;
	}
	public Value value() {
	return reference.constructor();
	}
	};
	properties.add(1, new JavaScriptProperty(this, constructor));
	}
	return (IVariable[]) this.properties.toArray(new IVariable[this.properties.size()]);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.core.model.IValue#hasVariables()
	*/
	public boolean hasVariables() throws DebugException {
	if (this.value instanceof ObjectReference) {
	return !(this.value instanceof NullValue);
	}
	return false;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.core.model.IValue#isAllocated()
	*/
	public boolean isAllocated() throws DebugException {
	return this.properties != null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.debug.core.model.IJavaScriptValue#isNull()
	*/
	public boolean isNull() {
	return this.value instanceof NullValue;
	}

	/**
	* Delegate method to create the proper kind of {@link IJavaScriptValue}
	*
	* @param target the target to create the value for
	* @param value the value to wrap
	* @return a new {@link IJavaScriptValue}
	*/
	public static IJavaScriptValue createValue(JavaScriptDebugTarget target, Value value) {
	if(value instanceof BooleanValue \|\|
	value instanceof NullValue \|\|
	value instanceof NumberValue) {
	return new JavaScriptPrimitiveValue(target, value);
	}
	return new JavaScriptValue(target, value);
	}
	}