test/Bindings/Ocaml/bitreader.ml

   1 (* RUN: %ocamlc -warn-error A llvm.cma llvm_bitreader.cma llvm_bitwriter.cma %s -o %t 2> /dev/null
   2  * RUN: ./%t %t.bc
   3  * RUN: llvm-dis < %t.bc | grep caml_int_ty
   4  *)
   5
   6 (* Note that this takes a moment to link, so it's best to keep the number of
   7    individual tests low. *)
   8
   9 let test x = if not x then exit 1 else ()
  10
  11 let _ =
  12   let fn = Sys.argv.(1) in
  13   let m = Llvm.create_module "ocaml_test_module" in
  14
  15   ignore (Llvm.define_type_name "caml_int_ty" Llvm.i32_type m);
  16
  17   test (Llvm_bitwriter.write_bitcode_file m fn);
  18
  19   Llvm.dispose_module m;
  20
  21   (* parse_bitcode *)
  22   begin
  23     let mb = Llvm.MemoryBuffer.of_file fn in
  24     begin try
  25       let m = Llvm_bitreader.parse_bitcode mb in
  26       Llvm.dispose_module m
  27     with x ->
  28       Llvm.MemoryBuffer.dispose mb;
  29       raise x
  30     end
  31   end;
  32
  33   (* MemoryBuffer.of_file *)
  34   test begin try
  35     let mb = Llvm.MemoryBuffer.of_file (fn ^ ".bogus") in
  36     Llvm.MemoryBuffer.dispose mb;
  37     false
  38   with Llvm.IoError _ ->
  39     true
  40   end;
  41
  42   (* get_module_provider *)
  43   begin
  44     let mb = Llvm.MemoryBuffer.of_file fn in
  45     let mp = begin try
  46       Llvm_bitreader.get_module_provider mb
  47     with x ->
  48       Llvm.MemoryBuffer.dispose mb;
  49       raise x
  50     end in
  51     Llvm.ModuleProvider.dispose mp
  52   end;
  53
  54   (* corrupt the bitcode *)
  55   let fn = fn ^ ".txt" in
  56   begin let oc = open_out fn in
  57     output_string oc "not a bitcode file\n";
  58     close_out oc
  59   end;
  60
  61   (* test get_module_provider exceptions *)
  62   test begin
  63     try
  64       let mb = Llvm.MemoryBuffer.of_file fn in
  65       let mp = begin try
  66         Llvm_bitreader.get_module_provider mb
  67       with x ->
  68         Llvm.MemoryBuffer.dispose mb;
  69         raise x
  70       end in
  71       Llvm.ModuleProvider.dispose mp;
  72       false
  73     with Llvm_bitreader.Error _ ->
  74       true
  75   end