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// LiteralValueReference.cs
//
// Author:
// Lluis Sanchez Gual <lluis@novell.com>
//
// Copyright (c) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
using System;
using Mono.Debugging.Client;
using Mono.Debugging.Backend;
namespace Mono.Debugging.Evaluation
{
public class LiteralValueReference: ValueReference
{
bool isVoidReturn;
bool objLiteral;
bool objCreated;
object objValue;
object value;
object type;
string name;
LiteralValueReference (EvaluationContext ctx): base (ctx)
{
}
public static LiteralValueReference CreateTargetBaseObjectLiteral (EvaluationContext ctx, string name, object value)
{
LiteralValueReference val = new LiteralValueReference (ctx);
var type = ctx.Adapter.GetValueType (ctx, value);
val.name = name;
val.value = value;
val.type = ctx.Adapter.GetBaseType (ctx, type);
val.objCreated = true;
return val;
}
public static LiteralValueReference CreateTargetObjectLiteral (EvaluationContext ctx, string name, object value)
{
LiteralValueReference val = new LiteralValueReference (ctx);
val.name = name;
val.value = value;
val.type = ctx.Adapter.GetValueType (ctx, value);
val.objCreated = true;
return val;
}
public static LiteralValueReference CreateObjectLiteral (EvaluationContext ctx, string name, object value)
{
LiteralValueReference val = new LiteralValueReference (ctx);
val.name = name;
val.objValue = value;
val.objLiteral = true;
return val;
}
public static LiteralValueReference CreateVoidReturnLiteral (EvaluationContext ctx, string name)
{
LiteralValueReference val = new LiteralValueReference (ctx);
val.value = val.objValue = new EvaluationResult ("No return value.");
val.type = typeof (EvaluationResult);
val.isVoidReturn = true;
val.objLiteral = true;
val.objCreated = true;
val.name = name;
return val;
}
void EnsureValueAndType ()
{
if (!objCreated && objLiteral) {
value = Context.Adapter.CreateValue (Context, objValue);
type = Context.Adapter.GetValueType (Context, value);
objCreated = true;
}
}
public override object ObjectValue {
get {
if (objLiteral)
return objValue;
return base.ObjectValue;
}
}
public override object Value {
get {
EnsureValueAndType ();
return value;
}
set {
throw new NotSupportedException ();
}
}
public override string Name {
get {
return name;
}
}
public override object Type {
get {
EnsureValueAndType ();
return type;
}
}
public override ObjectValueFlags Flags {
get {
return ObjectValueFlags.Field | ObjectValueFlags.ReadOnly;
}
}
protected override ObjectValue OnCreateObjectValue (EvaluationOptions options)
{
if (ObjectValue is EvaluationResult) {
EvaluationResult exp = (EvaluationResult) ObjectValue;
return Mono.Debugging.Client.ObjectValue.CreateObject (this, new ObjectPath (Name), "", exp, Flags, null);
} else
return base.OnCreateObjectValue (options);
}
public override ValueReference GetChild (string name, EvaluationOptions options)
{
object obj = Value;
if (obj == null)
return null;
if (name [0] == '[' && Context.Adapter.IsArray (Context, obj)) {
// Parse the array indices
string[] sinds = name.Substring (1, name.Length - 2).Split (',');
int[] indices = new int [sinds.Length];
for (int n=0; n<sinds.Length; n++)
indices [n] = int.Parse (sinds [n]);
return new ArrayValueReference (Context, obj, indices);
}
if (Context.Adapter.IsClassInstance (Context, obj)) {
// Note: This is the only difference with the default ValueReference implementation.
// We need this because the user may be requesting a base class's implementation, in
// which case 'Type' will be the BaseType instead of the actual type of the variable.
return Context.Adapter.GetMember (GetChildrenContext (options), this, Type, obj, name);
}
return null;
}
public override ObjectValue[] GetChildren (ObjectPath path, int index, int count, EvaluationOptions options)
{
if (isVoidReturn)
return new ObjectValue[0];
return base.GetChildren (path, index, count, options);
}
}
}
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