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//===- bitreader.go - Bindings for bitreader ------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines bindings for the bitreader component.
//
//===----------------------------------------------------------------------===//
package llvm
/*
#include "llvm-c/BitReader.h"
#include <stdlib.h>
*/
import "C"
import (
"errors"
"unsafe"
)
// ParseBitcodeFile parses the LLVM IR (bitcode) in the file with the
// specified name, and returns a new LLVM module.
func ParseBitcodeFile(name string) (Module, error) {
var buf C.LLVMMemoryBufferRef
var errmsg *C.char
var cfilename *C.char = C.CString(name)
defer C.free(unsafe.Pointer(cfilename))
result := C.LLVMCreateMemoryBufferWithContentsOfFile(cfilename, &buf, &errmsg)
if result != 0 {
err := errors.New(C.GoString(errmsg))
C.free(unsafe.Pointer(errmsg))
return Module{}, err
}
defer C.LLVMDisposeMemoryBuffer(buf)
var m Module
if C.LLVMParseBitcode(buf, &m.C, &errmsg) == 0 {
return m, nil
}
err := errors.New(C.GoString(errmsg))
C.free(unsafe.Pointer(errmsg))
return Module{}, err
}
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