@schleifner/asc-to-header
v0.2.0
Published
This tool is used for translate an AssemblyScript type definiton file to C++ header file.
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AssemblyScript C Header Translator
This tool is used for translate an AssemblyScript type definiton file to C++ header file.
build
npm install
npm run bundle
run
node --experimental-modules bin/Cli.js -f [input assemblyscript file] -o [target header file]
output:
C Header file
Example
example.ts
:
enum Status{
OK=0x1,
FAIL=0x2
}
export declare function printStatus(Status:Status);
output:example.h
:
#ifndef __types_wasm_example_H__
#define __types_wasm_example_H__
extern "C" {
enum class Status {
OK = 0x1,
FAIL = 0x2,
};
__attribute__((import_module("example"))) void printStatus(Status Status);
}
#endif
cuation
Function pointer type
For function type declaration, when use it in the function parameter, should use the same name.
for example:
ASC
export type mycallback = (data: i32) => void;
export function callService(mycallback: i32):void;
then we can translate to:
using mycallback = void (*) (int data);
__attribute__((import_module("test"))) void callService(mycallback mycallback);
but if we got asc like:
ASC
export type mycallback = (data: i32) => void;
export function callService(my_callback: i32):void;
then we can translate to:
using mycallback = void (*) (int data);
__attribute__((import_module("test"))) void callService(int my_callback);
UserData Type
Some user data type, which is often used as C like API context, is usually a pointer type. Type UserDataType
is designed as a reserved type. This type will be translated to uintptr_t
in C++.