Author: Tim Felgentreff <[email protected]>
Branch:
Changeset: r45:420d5621ee9e
Date: 2013-02-18 16:56 +0100
http://bitbucket.org/pypy/lang-smalltalk/changeset/420d5621ee9e/
Log: (timfel, cfbolz) immutability and promotes for method shadows
diff --git a/spyvm/model.py b/spyvm/model.py
--- a/spyvm/model.py
+++ b/spyvm/model.py
@@ -451,6 +451,7 @@
bytecodes (variable)
"""
+ _immutable_fields_ = ["_shadow?"]
### Extension from Squeak 3.9 doc, which we do not implement:
### trailer (variable)
### The trailer has two variant formats. In the first variant, the last
diff --git a/spyvm/shadow.py b/spyvm/shadow.py
--- a/spyvm/shadow.py
+++ b/spyvm/shadow.py
@@ -445,9 +445,10 @@
return self.s_home().w_method()
def method(self):
- methodshadow = self.w_method().as_compiledmethod_get_shadow(self.space)
- jit.promote(methodshadow)
- return methodshadow
+ w_method = jit.promote(self.w_method())
+ return jit.promote(
+ w_method.as_compiledmethod_get_shadow(self.space)
+ )
def getbytecode(self):
jit.promote(self._pc)
@@ -714,8 +715,9 @@
class CompiledMethodShadow(object):
+ _immutable_fields_ = ["bytecode", "literals[*]", "bytecodeoffset",
"literalsize", "tempsize"]
+
def __init__(self, w_compiledmethod):
- self.w_compiledmethod = w_compiledmethod
self.bytecode = "".join(w_compiledmethod.bytes)
self.literals = w_compiledmethod.literals
self.bytecodeoffset = w_compiledmethod.bytecodeoffset()
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