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Add a simple callback native function

This commit is contained in:
Simon Cozens 2023-02-23 14:55:49 +00:00 committed by Behdad Esfahbod
parent bdbc1568ba
commit 05bf984212
1 changed files with 12 additions and 15 deletions
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25
src/hb-wasm-shape.cc
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@ -44,6 +44,12 @@ struct hb_wasm_face_data_t {
wasm_module_t wasm_module; wasm_module_t wasm_module;
}; };
extern "C" {
static void debugprint(wasm_exec_env_t exec_env, char *the_string, uint8_t len) {
printf("%*s", len, the_string);
}
}
static bool static bool
init_wasm () init_wasm ()
{ {
@ -61,21 +67,12 @@ init_wasm ()
// https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/doc/export_native_api.md // https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/doc/export_native_api.md
static NativeSymbol native_symbols[] = { static NativeSymbol native_symbols[] = {
#if 0
{ {
"intToStr", // the name of WASM function name "debugprint",
intToStr, // the native function pointer (void *)debugprint,
"(i*~i)i", // the function prototype signature, avoid to use i32 "($i)",
NULL // attachment is NULL NULL
}, }
{
"get_pow", // the name of WASM function name
get_pow, // the native function pointer
"(ii)i", // the function prototype signature, avoid to use i32
NULL // attachment is NULL
},
{ "calculate_native", calculate_native, "(iii)i", NULL }
#endif
}; };
init_args.mem_alloc_type = Alloc_With_Allocator; init_args.mem_alloc_type = Alloc_With_Allocator;