summaryrefslogtreecommitdiffstats
path: root/Tools/idle/StackViewer.py
blob: d70658bcbbde15079ccaa75361e4c6aa6bd666bc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
import os
import sys
import string
import linecache

from TreeWidget import TreeNode, TreeItem, ScrolledCanvas
from ObjectBrowser import ObjectTreeItem, make_objecttreeitem
from OldStackViewer import StackViewer, NamespaceViewer

def StackBrowser(root, flist=None, tb=None, top=None):
    if top is None:
        from Tkinter import Toplevel
        top = Toplevel(root)
    sc = ScrolledCanvas(top, bg="white", highlightthickness=0)
    sc.frame.pack(expand=1, fill="both")
    item = StackTreeItem(flist, tb)
    node = TreeNode(sc.canvas, None, item)
    node.expand()

class StackTreeItem(TreeItem):

    def __init__(self, flist=None, tb=None):
        self.flist = flist
        self.stack = get_stack(tb)
        self.text = get_exception()

    def GetText(self):
        return self.text

    def GetSubList(self):
        sublist = []
        for info in self.stack:
            item = FrameTreeItem(info, self.flist)
            sublist.append(item)
        return sublist

class FrameTreeItem(TreeItem):

    def __init__(self, info, flist):
        self.info = info
        self.flist = flist

    def GetText(self):
        frame, lineno = self.info
        try:
            modname = frame.f_globals["__name__"]
        except:
            modname = "?"
        code = frame.f_code
        filename = code.co_filename
        funcname = code.co_name
        sourceline = linecache.getline(filename, lineno)
        sourceline = string.strip(sourceline)
        if funcname in ("?", "", None):
            item = "%s, line %d: %s" % (modname, lineno, sourceline)
        else:
            item = "%s.%s(...), line %d: %s" % (modname, funcname,
                                             lineno, sourceline)
##        if i == index:
##            item = "> " + item
        return item

    def GetSubList(self):
        frame, lineno = self.info
        sublist = []
        if frame.f_globals is not frame.f_locals:
            item = VariablesTreeItem("<locals>", frame.f_locals, self.flist)
            sublist.append(item)
        item = VariablesTreeItem("<globals>", frame.f_globals, self.flist)
        sublist.append(item)
        return sublist

    def OnDoubleClick(self):
        if self.flist:
            frame, lineno = self.info
            filename = frame.f_code.co_filename
            if os.path.isfile(filename):
                self.flist.gotofileline(filename, lineno)

class VariablesTreeItem(ObjectTreeItem):

    def GetText(self):
        return self.labeltext

    def GetLabelText(self):
        return None

    def IsExpandable(self):
        return len(self.object) > 0

    def keys(self):
        return self.object.keys()

    def GetSubList(self):
        sublist = []
        for key in self.keys():
            try:
                value = self.object[key]
            except KeyError:
                continue
            def setfunction(value, key=key, object=self.object):
                object[key] = value
            item = make_objecttreeitem(key + " =", value, setfunction)
            sublist.append(item)
        return sublist

def get_stack(t=None, f=None):
    if t is None:
        t = sys.last_traceback
    stack = []
    if t and t.tb_frame is f:
        t = t.tb_next
    while f is not None:
        stack.append((f, f.f_lineno))
        if f is self.botframe:
            break
        f = f.f_back
    stack.reverse()
    while t is not None:
        stack.append((t.tb_frame, t.tb_lineno))
        t = t.tb_next
    return stack

def get_exception(type=None, value=None):
    if type is None:
        type = sys.last_type
        value = sys.last_value
    if hasattr(type, "__name__"):
        type = type.__name__
    s = str(type)
    if value is not None:
        s = s + ": " + str(value)
    return s

def _test():
    try:
        import testcode
        reload(testcode)
    except:
        sys.last_type, sys.last_value, sys.last_traceback = sys.exc_info()
    from Tkinter import Tk
    root = Tk()
    StackBrowser(None, top=root)
    root.mainloop()

if __name__ == "__main__":
    _test()