Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 6053744c3a3175992ac5f27cdf628e5ca01cbb57 authored by Barry Warsaw on 03 August 2010, 22:39:42 UTC
Bumping to 2.6.6 rc 1
Bumping to 2.6.6 rc 1
Tip revision: 6053744
bgenStackBuffer.py
"""Buffers allocated on the stack."""
from bgenBuffer import FixedInputBufferType, FixedOutputBufferType
class StackOutputBufferType(FixedOutputBufferType):
"""Fixed output buffer allocated on the stack -- passed as (buffer, size).
Instantiate with the buffer size as parameter.
"""
def passOutput(self, name):
return "%s__out__, %s" % (name, self.size)
class VarStackOutputBufferType(StackOutputBufferType):
"""Output buffer allocated on the stack -- passed as (buffer, &size).
Instantiate with the buffer size as parameter.
"""
def getSizeDeclarations(self, name):
return []
def getAuxDeclarations(self, name):
return ["int %s__len__ = %s" % (name, self.size)]
def passOutput(self, name):
return "%s__out__, &%s__len__" % (name, name)
def mkvalueArgs(self, name):
return "%s__out__, (int)%s__len__" % (name, name)
class VarVarStackOutputBufferType(VarStackOutputBufferType):
"""Output buffer allocated on the stack -- passed as (buffer, size, &size).
Instantiate with the buffer size as parameter.
"""
def passOutput(self, name):
return "%s__out__, %s__len__, &%s__len__" % (name, name, name)
class ReturnVarStackOutputBufferType(VarStackOutputBufferType):
"""Output buffer allocated on the stack -- passed as (buffer, size) -> size.
Instantiate with the buffer size as parameter.
The function's return value is the size.
(XXX Should have a way to suppress returning it separately, too.)
"""
def passOutput(self, name):
return "%s__out__, %s__len__" % (name, name)
def mkvalueArgs(self, name):
return "%s__out__, (int)_rv" % name
