Author: Ronan Lamy <[email protected]>
Branch: less-stringly-ops
Changeset: r66221:c953a3ba4181
Date: 2013-08-12 01:07 +0100
http://bitbucket.org/pypy/pypy/changeset/c953a3ba4181/
Log: kill unroller.kind
diff --git a/rpython/flowspace/flowcontext.py b/rpython/flowspace/flowcontext.py
--- a/rpython/flowspace/flowcontext.py
+++ b/rpython/flowspace/flowcontext.py
@@ -411,16 +411,16 @@
self.locals_stack_w[:len(items_w)] = items_w
self.dropvaluesuntil(len(items_w))
- def unrollstack(self, unroller_kind):
+ def unrollstack(self, unroller):
while self.blockstack:
block = self.blockstack.pop()
- if (block.handling_mask & unroller_kind) != 0:
+ if isinstance(unroller, block.handles):
return block
block.cleanupstack(self)
return None
def unrollstack_and_jump(self, unroller):
- block = self.unrollstack(unroller.kind)
+ block = self.unrollstack(unroller)
if block is None:
raise BytecodeCorruption("misplaced bytecode - should not return")
return block.handle(self, unroller)
@@ -585,11 +585,11 @@
return self.handle_operation_error(operr)
def handle_operation_error(self, operr):
- block = self.unrollstack(SApplicationException.kind)
+ unroller = SApplicationException(operr)
+ block = self.unrollstack(unroller)
if block is None:
raise operr
else:
- unroller = SApplicationException(operr)
next_instr = block.handle(self, unroller)
return next_instr
@@ -694,11 +694,11 @@
def RETURN_VALUE(self, oparg, next_instr):
w_returnvalue = self.popvalue()
- block = self.unrollstack(SReturnValue.kind)
+ unroller = SReturnValue(w_returnvalue)
+ block = self.unrollstack(unroller)
if block is None:
raise Return(w_returnvalue)
else:
- unroller = SReturnValue(w_returnvalue)
next_instr = block.handle(self, unroller)
return next_instr # now inside a 'finally' block
@@ -727,7 +727,7 @@
def unroll_finally(self, unroller):
# go on unrolling the stack
- block = self.unrollstack(unroller.kind)
+ block = self.unrollstack(unroller)
if block is None:
unroller.nomoreblocks()
else:
@@ -1191,7 +1191,6 @@
class SReturnValue(SuspendedUnroller):
"""Signals a 'return' statement.
Argument is the wrapped object to return."""
- kind = 0x01
def __init__(self, w_returnvalue):
self.w_returnvalue = w_returnvalue
@@ -1209,7 +1208,6 @@
class SApplicationException(SuspendedUnroller):
"""Signals an application-level exception
(i.e. an OperationException)."""
- kind = 0x02
def __init__(self, operr):
self.operr = operr
@@ -1226,7 +1224,6 @@
class SBreakLoop(SuspendedUnroller):
"""Signals a 'break' statement."""
- kind = 0x04
def state_unpack_variables(self, space):
return []
@@ -1240,7 +1237,6 @@
class SContinueLoop(SuspendedUnroller):
"""Signals a 'continue' statement.
Argument is the bytecode position of the beginning of the loop."""
- kind = 0x08
def __init__(self, jump_to):
self.jump_to = jump_to
@@ -1281,8 +1277,7 @@
class LoopBlock(FrameBlock):
"""A loop block. Stores the end-of-loop pointer in case of 'break'."""
- _opname = 'SETUP_LOOP'
- handling_mask = SBreakLoop.kind | SContinueLoop.kind
+ handles = (SBreakLoop, SContinueLoop)
def handle(self, frame, unroller):
if isinstance(unroller, SContinueLoop):
@@ -1299,8 +1294,7 @@
class ExceptBlock(FrameBlock):
"""An try:except: block. Stores the position of the exception handler."""
- _opname = 'SETUP_EXCEPT'
- handling_mask = SApplicationException.kind
+ handles = SApplicationException
def handle(self, frame, unroller):
# push the exception to the value stack for inspection by the
@@ -1320,8 +1314,7 @@
class FinallyBlock(FrameBlock):
"""A try:finally: block. Stores the position of the exception handler."""
- _opname = 'SETUP_FINALLY'
- handling_mask = -1 # handles every kind of SuspendedUnroller
+ handles = SuspendedUnroller
def handle(self, frame, unroller):
# any abnormal reason for unrolling a finally: triggers the end of
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