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comparison Jint.Runtime/VM/Frame.cs @ 3:aced2ae9957f

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temp commit, new virtual machine concept (strongly typed version of VM2).
author cin
date Sun, 27 Oct 2013 17:23:25 +0400
parents e113095f1de0
children 1ae5b10f7a10
comparison
equal deleted inserted replaced
2:4aed85a1f558 3:aced2ae9957f
1 using System; 1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
2 5
3 namespace Jint.Runtime.VM 6 namespace Jint.Runtime.VM {
4 { 7 class Frame {
5 public class Frame 8 IBox[] m_registers;
6 { 9 RuntimeContext m_runtime;
7 BoxBase[] m_data;
8 RuntimeContext m_runtimeContext;
9 10
10 public Frame (int size, RuntimeContext runtime) 11 public Frame(int size, RuntimeContext runtime) {
11 { 12 if (runtime == null)
12 if (size < 0) 13 throw new ArgumentNullException("runtime");
13 throw new ArgumentOutOfRangeException ("size"); 14 if (size < 0)
14 if (runtime == null) 15 throw new ArgumentOutOfRangeException("size");
15 throw new ArgumentNullException ("runtime"); 16 m_runtime = runtime;
17 m_registers = new IBox[size];
18 }
16 19
17 m_data = new BoxBase[size]; 20 public IBox this[int index] {
18 m_runtimeContext = runtime; 21 get {
19 } 22 return m_registers[index];
23 }
24 set {
25 m_registers[index] = value;
26 }
27 }
20 28
21 public RuntimeContext Runtime { 29 public T GetValue<T>(int index) {
22 get { return m_runtimeContext; } 30 // TODO handle conversion errors
23 } 31 return ((Box<T>)m_registers[index]).holdingValue;
32 }
24 33
25 public T Get<T> (int index) 34 public void SetValue<T>(int index, T value) {
26 { 35 var reg = m_registers[index] as Box<T>;
27 var bbox = m_data [index]; 36 if (reg == null)
28 37 m_registers[index] = m_runtime.BoxValue(value);
29 if (bbox == null) 38 else
30 return default(T); 39 reg.holdingValue = value;
31 40 }
32 var box = bbox as IGetter<T>; 41 }
33 if (box != null)
34 return box.Get();
35 else
36 return bbox.Convert<T>();
37 }
38
39 public void Set<T> (int index, T value)
40 {
41 var bbox = m_data [index];
42 var box = bbox as ISetter<T>;
43 if (box != null)
44 box.Set (value);
45 else
46 m_data [index] = m_runtimeContext.BoxValue(value);
47 }
48
49 public BoxBase GetBox(int index) {
50 return m_data[index];
51 }
52
53 public void SetBox(int index, BoxBase box) {
54 m_data [index] = box;
55 }
56
57 }
58 } 42 }
59