2 using System.Collections.Generic;
5 namespace Mono.Debugger.Soft
7 public class StackFrame : Mirror
13 StackFrameFlags flags;
16 * FIXME: Decide on the way to request/handle debugging information:
17 * - request the info in bulk for all frames/on demand for individual frames
18 * - request the info from the runtime/request only the il offset, and compute
19 * everything else based on this info using the method debug info.
22 internal StackFrame (VirtualMachine vm, long id, ThreadMirror thread, MethodMirror method, int il_offset, StackFrameFlags flags) : base (vm, id) {
25 this.il_offset = il_offset;
29 public ThreadMirror Thread {
35 public MethodMirror Method {
41 public Location Location {
43 if (location == null) {
45 string src_file = null;
47 int column_number = 0;
52 line_number = method.il_offset_to_line_number (il_offset, out src_file, out hash, out column_number);
54 location = new Location (vm, Method, 0, il_offset, src_file != null ? src_file : method.SourceFile, line_number, column_number, hash);
60 public string FileName {
62 return Location.SourceFile;
68 return Location.ILOffset;
72 public int LineNumber {
74 return Location.LineNumber;
78 public int ColumnNumber {
80 return Location.ColumnNumber;
84 public bool IsDebuggerInvoke {
86 return (flags & StackFrameFlags.DEBUGGER_INVOKE) != 0;
91 * Whenever this frame transitions to native code. The method associated
92 * with the frame is either an InternalCall or a pinvoke method.
94 public bool IsNativeTransition {
96 return (flags & StackFrameFlags.NATIVE_TRANSITION) != 0;
100 public Value GetValue (ParameterInfoMirror param) {
102 throw new ArgumentNullException ("param");
103 if (param.Method != Method)
104 throw new ArgumentException ("Parameter doesn't belong to this frame's method.");
106 throw new ArgumentException ("Parameter represents the method return value.");
109 // FIXME: Allow returning the frame return value if possible
110 return vm.DecodeValue (vm.conn.StackFrame_GetValues (thread.Id, Id, new int [] { (- param.Position) - 1 })[0]);
113 public Value GetValue (LocalVariable var) {
115 throw new ArgumentNullException ("var");
116 if (var.Method != Method)
117 throw new ArgumentException ("Local variable doesn't belong to this frame's method.");
120 // FIXME: Check for return value
121 // FIXME: Allow returning the frame return value if possible
122 return vm.DecodeValue (vm.conn.StackFrame_GetValues (thread.Id, Id, new int [] { var.GetValueIndex } )[0]);
125 public Value[] GetValues (LocalVariable[] vars) {
127 throw new ArgumentNullException ("vars");
128 for (int i = 0; i < vars.Length; ++i) {
129 if (vars [i] == null)
130 throw new ArgumentNullException ("vars");
131 if (vars [i].Method != Method)
132 throw new ArgumentException ("Local variable doesn't belong to this frame's method.");
134 int[] pos = new int [vars.Length];
135 for (int i = 0; i < vars.Length; ++i)
136 pos [i] = vars [i].GetValueIndex;
137 return vm.DecodeValues (vm.conn.StackFrame_GetValues (thread.Id, Id, pos));
140 public Value GetArgument (int pos) {
141 return GetValue (Method.GetParameters () [pos]);
144 public Value GetThis () {
145 return vm.DecodeValue (vm.conn.StackFrame_GetThis (thread.Id, Id));
148 public void SetValue (LocalVariable var, Value value) {
150 throw new ArgumentNullException ("var");
151 if (var.Method != Method)
152 throw new ArgumentException ("Local variable doesn't belong to this frame's method.");
154 throw new ArgumentNullException ("value");
157 // FIXME: Check for return value
159 vm.conn.StackFrame_SetValues (thread.Id, Id, new int [] { var.GetValueIndex }, new ValueImpl [] { vm.EncodeValue (value) });
160 } catch (CommandException ex) {
161 if (ex.ErrorCode == ErrorCode.INVALID_ARGUMENT)
162 throw new ArgumentException ("Value does not match the type of the local variable.");
168 public void SetValue (ParameterInfoMirror param, Value value) {
170 throw new ArgumentNullException ("param");
171 if (param.Method != Method)
172 throw new ArgumentException ("Parameter doesn't belong to this frame's method.");
174 throw new ArgumentException ("Parameter represents the method return value.");
176 throw new ArgumentNullException ("value");
180 // FIXME: Allow setting the frame return value if possible
182 vm.conn.StackFrame_SetValues (thread.Id, Id, new int [] { (- param.Position) - 1 }, new ValueImpl [] { vm.EncodeValue (value) });
183 } catch (CommandException ex) {
184 if (ex.ErrorCode == ErrorCode.INVALID_ARGUMENT)
185 throw new ArgumentException ("Value does not match the type of the variable.");
191 public IList<LocalVariable> GetVisibleVariables () {
192 if (Location.ILOffset == -1)
193 throw new AbsentInformationException ();
195 return Method.GetLocals ().Where (l => l.LiveRangeStart <= location.ILOffset && l.LiveRangeEnd >= location.ILOffset).ToList ();
198 public LocalVariable GetVisibleVariableByName (string name) {
200 throw new ArgumentNullException ("name");
202 if (Location.ILOffset == -1)
203 throw new AbsentInformationException ();
205 return Method.GetLocals ().Where (l => l.LiveRangeStart <= location.ILOffset && l.LiveRangeEnd >= location.ILOffset && l.Name == name).FirstOrDefault ();