diff -r 9513afbd57f1 -r 744cd0b4b8cd DebugClients/Python/coverage/bytecode.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/DebugClients/Python/coverage/bytecode.py Thu Jan 07 13:42:51 2010 +0000
@@ -0,0 +1,81 @@
+"""Bytecode manipulation for coverage.py"""
+
+import opcode, sys, types
+
+class ByteCode(object):
+ """A single bytecode."""
+ def __init__(self):
+ self.offset = -1
+ self.op = -1
+ self.arg = -1
+ self.next_offset = -1
+ self.jump_to = -1
+
+
+class ByteCodes(object):
+ """Iterator over byte codes in `code`.
+
+ Returns `ByteCode` objects.
+
+ """
+ def __init__(self, code):
+ self.code = code
+ self.offset = 0
+
+ if sys.hexversion > 0x03000000:
+ def __getitem__(self, i):
+ return self.code[i]
+ else:
+ def __getitem__(self, i):
+ return ord(self.code[i])
+
+ def __iter__(self):
+ return self
+
+ def __next__(self):
+ if self.offset >= len(self.code):
+ raise StopIteration
+
+ bc = ByteCode()
+ bc.op = self[self.offset]
+ bc.offset = self.offset
+
+ next_offset = self.offset+1
+ if bc.op >= opcode.HAVE_ARGUMENT:
+ bc.arg = self[self.offset+1] + 256*self[self.offset+2]
+ next_offset += 2
+
+ label = -1
+ if bc.op in opcode.hasjrel:
+ label = next_offset + bc.arg
+ elif bc.op in opcode.hasjabs:
+ label = bc.arg
+ bc.jump_to = label
+
+ bc.next_offset = self.offset = next_offset
+ return bc
+
+ next = __next__ # Py2k uses an old-style non-dunder name.
+
+
+class CodeObjects(object):
+ """Iterate over all the code objects in `code`."""
+ def __init__(self, code):
+ self.stack = [code]
+
+ def __iter__(self):
+ return self
+
+ def __next__(self):
+ if self.stack:
+ # We're going to return the code object on the stack, but first
+ # push its children for later returning.
+ code = self.stack.pop()
+ for c in code.co_consts:
+ if isinstance(c, types.CodeType):
+ self.stack.append(c)
+ return code
+
+ raise StopIteration
+
+ next = __next__
