PowerToys/Pythonnet.Runtime/debughelper.cs
2014-01-11 00:19:14 +08:00

129 lines
4.1 KiB
C#

// ==========================================================================
// This software is subject to the provisions of the Zope Public License,
// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
// FOR A PARTICULAR PURPOSE.
// ==========================================================================
using System;
using System.Collections;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Threading;
namespace Python.Runtime {
/// <summary>
/// Debugging helper utilities.
/// The methods are only executed when the DEBUG flag is set. Otherwise
/// they are automagically hidden by the compiler and silently surpressed.
/// </summary>
internal class DebugUtil {
[Conditional("DEBUG")]
public static void Print(string msg, params IntPtr[] args) {
string result = msg;
result += " ";
for (int i = 0; i < args.Length; i++) {
if (args[i] == IntPtr.Zero) {
Console.WriteLine("null arg to print");
}
IntPtr ob = Runtime.PyObject_Repr(args[i]);
result += Runtime.GetManagedString(ob);
Runtime.Decref(ob);
result += " ";
}
Console.WriteLine(result);
return;
}
[Conditional("DEBUG")]
public static void Print(string msg) {
Console.WriteLine(msg);
}
[Conditional("DEBUG")]
internal static void DumpType(IntPtr type) {
IntPtr op = Marshal.ReadIntPtr(type, TypeOffset.tp_name);
string name = Marshal.PtrToStringAnsi(op);
Console.WriteLine("Dump type: {0}", name);
op = Marshal.ReadIntPtr(type, TypeOffset.ob_type);
DebugUtil.Print(" type: ", op);
op = Marshal.ReadIntPtr(type, TypeOffset.tp_base);
DebugUtil.Print(" base: ", op);
op = Marshal.ReadIntPtr(type, TypeOffset.tp_bases);
DebugUtil.Print(" bases: ", op);
//op = Marshal.ReadIntPtr(type, TypeOffset.tp_mro);
//DebugUtil.Print(" mro: ", op);
FieldInfo[] slots = typeof(TypeOffset).GetFields();
int size = IntPtr.Size;
for (int i = 0; i < slots.Length; i++) {
int offset = i * size;
name = slots[i].Name;
op = Marshal.ReadIntPtr(type, offset);
Console.WriteLine(" {0}: {1}", name, op);
}
Console.WriteLine("");
Console.WriteLine("");
op = Marshal.ReadIntPtr(type, TypeOffset.tp_dict);
if (op == IntPtr.Zero) {
Console.WriteLine(" dict: null");
}
else {
DebugUtil.Print(" dict: ", op);
}
}
[Conditional("DEBUG")]
internal static void DumpInst(IntPtr ob) {
IntPtr tp = Runtime.PyObject_TYPE(ob);
int sz = (int)Marshal.ReadIntPtr(tp, TypeOffset.tp_basicsize);
for (int i = 0; i < sz; i += IntPtr.Size) {
IntPtr pp = new IntPtr(ob.ToInt64() + i);
IntPtr v = Marshal.ReadIntPtr(pp);
Console.WriteLine("offset {0}: {1}", i, v);
}
Console.WriteLine("");
Console.WriteLine("");
}
[Conditional("DEBUG")]
internal static void debug(string msg) {
StackTrace st = new StackTrace(1, true);
StackFrame sf = st.GetFrame(0);
MethodBase mb = sf.GetMethod();
Type mt = mb.DeclaringType;
string caller = mt.Name + "." + sf.GetMethod().Name;
Thread t = Thread.CurrentThread;
string tid = t.GetHashCode().ToString();
Console.WriteLine("thread {0} : {1}", tid, caller);
Console.WriteLine(" {0}", msg);
return;
}
}
}