Transfer higher level data types like objects to extended class objects (host binding and inheritance) #2867
Description
Bug description
I would like to pass data from host to as using host bindings. On the as side the target class is extending another class.
Steps to reproduce
Target class:
export class Foo { a: i32 = 0 } export class Baa extends Foo { b: i32 = 0 }index.ts (AS)
export function test(test: Baa): void { console.log('test') }Calling from host side:
... wasm.test({a: 0, b: 1}) ...I get a runtime error like that:
Uncaught (in promise) TypeError: internref expected at __lowerInternref (release.js?t=1725378963979:80:11) at Object.test (release.js?t=1725378963979:37:14) ....
Generated glue code is not looking as expected:
declare namespace __AdaptedExports { /** Exported memory */ export const memory: WebAssembly.Memory; /** * assembly/index/test * @param test `assembly/Baa` */ export function test(test: __Internref16): void; } /** assembly/Baa */ declare class __Internref16 extends Number { private __nominal16: symbol; private __nominal17: symbol; private __nominal0: symbol; } /** Instantiates the compiled WebAssembly module with the given imports. */ export declare function instantiate(module: WebAssembly.Module, imports: { env: unknown, }): Promise<typeof __AdaptedExports>;Removing inheritance from target class is solving the problem:
export class Baa { a: i32 = 0 b: i32 = 0 }
Is inheritance not supported for host bindings?
AssemblyScript version
0.27.29