blob: 5a3bd51cfa57288e48171c5d4f650440e8e16dde (
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
|
#===- core.py - Python LLVM Bindings -------------------------*- python -*--===#
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
#===------------------------------------------------------------------------===#
from .common import get_library
from ctypes import POINTER
from ctypes import byref
from ctypes import c_char_p
from ctypes import c_void_p
__all__ = [
"lib",
"MemoryBufferRef",
]
lib = get_library()
class MemoryBuffer(object):
"""Represents an opaque memory buffer."""
def __init__(self, filename=None):
"""Create a new memory buffer.
Currently, we support creating from the contents of a file at the
specified filename.
"""
if filename is None:
raise Exception("filename argument must be defined")
memory = c_void_p(None)
out = c_char_p(None)
result = lib.LLVMCreateMemoryBufferWithContentsOfFile(filename,
byref(memory), byref(out))
if result:
raise Exception("Could not create memory buffer: %s" % out.value)
self._memory = memory
def __del__(self):
lib.LLVMDisposeMemoryBuffer(self._memory)
def from_param(self):
return self._memory
def register_library(library):
library.LLVMCreateMemoryBufferWithContentsOfFile.argtypes = [c_char_p,
POINTER(c_void_p), POINTER(c_char_p)]
library.LLVMCreateMemoryBufferWithContentsOfFile.restype = bool
library.LLVMDisposeMemoryBuffer.argtypes = [c_void_p]
register_library(lib)
|
