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Adding bindings for memory buffers and module providers. Switching

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to exceptions rather than variants for error handling in Ocaml.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45226 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gordon Henriksen
2007-12-19 22:30:40 +00:00
parent 696f768daf
commit da1435f86e
16 changed files with 350 additions and 154 deletions
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53
bindings/ocaml/bitreader/bitreader_ocaml.c
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@@ -16,31 +16,46 @@
#include "caml/alloc.h"
#include "caml/mlvalues.h"
#include "caml/memory.h"
#include <stdio.h>
/* Can't use the recommended caml_named_value mechanism for backwards
compatibility reasons. This is largely equivalent. */
static value llvm_bitreader_error_exn;
CAMLprim value llvm_register_bitreader_exns(value Error) {
llvm_bitreader_error_exn = Field(Error, 0);
register_global_root(&llvm_bitreader_error_exn);
return Val_unit;
}
void llvm_raise(value Prototype, char *Message);
/*===-- Modules -----------------------------------------------------------===*/
/* string -> bitreader_result
/* Llvm.llmemorybuffer -> Llvm.module */
CAMLprim value llvm_get_module_provider(LLVMMemoryBufferRef MemBuf) {
CAMLparam0();
CAMLlocal2(Variant, MessageVal);
char *Message;
LLVMModuleProviderRef MP;
if (LLVMGetBitcodeModuleProvider(MemBuf, &MP, &Message))
llvm_raise(llvm_bitreader_error_exn, Message);
CAMLreturn((value) MemBuf);
}
type bitreader_result =
| Bitreader_success of Llvm.llmodule
| Bitreader_failure of string
*/
CAMLprim value llvm_read_bitcode_file(value Path) {
/* Llvm.llmemorybuffer -> Llvm.llmodule */
CAMLprim value llvm_parse_bitcode(LLVMMemoryBufferRef MemBuf) {
CAMLparam0();
CAMLlocal2(Variant, MessageVal);
LLVMModuleRef M;
char *Message;
CAMLparam1(Path);
CAMLlocal2(Variant, MessageVal);
if (LLVMReadBitcodeFromFile(String_val(Path), &M, &Message)) {
MessageVal = copy_string(Message);
LLVMDisposeBitcodeReaderMessage(Message);
Variant = alloc(1, 1);
Field(Variant, 0) = MessageVal;
} else {
Variant = alloc(1, 0);
Field(Variant, 0) = Val_op(M);
}
if (LLVMParseBitcode(MemBuf, &M, &Message))
llvm_raise(llvm_bitreader_error_exn, Message);
CAMLreturn(Variant);
CAMLreturn((value) M);
}