/
expression.ml
176 lines (144 loc) · 5.11 KB
/
expression.ml
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open Js_of_ocaml.Js
open Js_of_ocaml.Js.Unsafe
type t = int
let block ?(return_type=Type.auto) wasm_mod name children =
meth_call wasm_mod "block"
[|
inject (string name);
inject (array (Array.of_list children));
inject return_type;
|]
let if_ wasm_mod cond if_true if_false =
meth_call wasm_mod "if" [| inject cond; inject if_true; inject if_false |]
let loop wasm_mod name body =
meth_call wasm_mod "loop" [| inject (string name); inject body |]
let break wasm_mod name cond res =
meth_call wasm_mod "br" [| inject (string name); inject cond; inject res |]
let switch wasm_mod names default_name cond value =
meth_call wasm_mod "switch"
[|
inject (array (Array.of_list (List.map string names)));
inject (string default_name);
inject cond;
inject value;
|]
let call wasm_mod name params return_typ =
meth_call wasm_mod "call"
[|
inject (string name);
inject (array (Array.of_list params));
inject return_typ;
|]
let call_indirect wasm_mod target params params_typ return_typ =
meth_call wasm_mod "call_indirect"
[|
inject target;
inject (array (Array.of_list params));
inject params_typ;
inject return_typ;
|]
let return_call wasm_mod name params return_typ =
meth_call wasm_mod "return_call"
[|
inject (string name);
inject (array (Array.of_list params));
inject return_typ;
|]
let return_call_indirect wasm_mod target params params_typ return_typ =
meth_call wasm_mod "return_call_indirect"
[|
inject target;
inject (array (Array.of_list params));
inject params_typ;
inject return_typ;
|]
let local_get wasm_mod slot typ =
let scope = get wasm_mod "local" in
meth_call scope "get" [| inject slot; inject typ |]
let local_set wasm_mod slot value =
let scope = get wasm_mod "local" in
meth_call scope "set" [| inject slot; inject value |]
let local_tee wasm_mod slot value typ =
let scope = get wasm_mod "local" in
meth_call scope "tee" [| inject slot; inject value; inject typ |]
let global_get wasm_mod name typ =
let scope = get wasm_mod "global" in
meth_call scope "get" [| inject (string name); inject typ |]
let global_set wasm_mod name value =
let scope = get wasm_mod "global" in
meth_call scope "set" [| inject (string name); inject value |]
let load wasm_mod byts offset align typ ptr =
meth_call global##.binaryen "_BinaryenLoad"
[|
inject wasm_mod;
inject byts;
inject offset;
inject align;
inject typ;
inject ptr;
|]
let store wasm_mod byts offset align ptr value typ =
meth_call global##.binaryen "_BinaryenStore"
[|
inject wasm_mod;
inject byts;
inject offset;
inject align;
inject ptr;
inject value;
inject typ;
|]
let const wasm_mod lit =
let lit_hack = Literal.to_jsoo lit in
match lit_hack with
| Int32 value ->
let scope = get wasm_mod "i32" in
meth_call scope "const" [| inject value |]
| Int64 value ->
let scope = get wasm_mod "i64" in
meth_call scope "const" [| inject value |]
| Float32Bits value ->
let scope = get wasm_mod "f32" in
meth_call scope "const_bits" [| inject value |]
| Float64Bits value ->
let scope = get wasm_mod "f64" in
meth_call scope "const_bits" [| inject value |]
| Float32 value ->
let scope = get wasm_mod "f32" in
(* TODO: Investigate if this needs the Int32 conversion stuff *)
meth_call scope "const" [| inject value |]
| Float64 value ->
let scope = get wasm_mod "f64" in
meth_call scope "const" [| inject value |]
let unary wasm_mod op p =
meth_call global##.binaryen "_BinaryenUnary"
[| inject wasm_mod; inject op; inject p |]
let binary wasm_mod op a b =
meth_call global##.binaryen "_BinaryenBinary"
[| inject wasm_mod; inject op; inject a; inject b |]
let select wasm_mod cond if_true if_false =
meth_call wasm_mod "select"
[| inject cond; inject if_true; inject if_false; inject Type.auto |]
let drop wasm_mod value = meth_call wasm_mod "drop" [| inject value |]
let return wasm_mod value = meth_call wasm_mod "return" [| inject value |]
let nop wasm_mod = meth_call wasm_mod "nop" [||]
let unreachable wasm_mod = meth_call wasm_mod "unreachable" [||]
let memory_copy wasm_mod dest source size =
let scope = get wasm_mod "memory" in
meth_call scope "copy" [| inject dest; inject source; inject size |]
let memory_fill wasm_mod dest value size =
let scope = get wasm_mod "memory" in
meth_call scope "fill" [| inject dest; inject value; inject size |]
let tuple_make wasm_mod operands =
let scope = get wasm_mod "tuple" in
meth_call scope "make" [| inject (array (Array.of_list operands)) |]
let tuple_extract wasm_mod tuple index =
let scope = get wasm_mod "tuple" in
meth_call scope "extract" [| inject tuple; inject index |]
let pop wasm_mod typ =
meth_call global##.binaryen "_BinaryenPop" [| inject wasm_mod; inject typ |]
(* TODO: Figure this out *)
let null () = Obj.magic ()
let print expr =
let text = meth_call global##.binaryen "emitText" [| inject expr |] in
print_string (to_string text)