Function test

deps/v8/test/mjsunit/wasm/externref-table.js:89–105

(is_nullable)

  print(arguments.callee.name);

  let test = function(is_nullable) {
    const builder = new WasmModuleBuilder();
    const sig = builder.addType(kSig_i_i);
    const func = builder.addFunction("func", kSig_i_i)
      .addBody([kExprLocalGet, 0]);
    builder.addTable(is_nullable ? wasmRefNullType(sig) : wasmRefType(sig),
                     10, 10, [kExprRefFunc, func.index]);
    builder.addFunction("main", kSig_i_ii)
      .addBody([kExprLocalGet, 1, kExprLocalGet, 0, kExprTableGet, 0,
                kExprCallRef, sig])
      .exportFunc();

    const instance = builder.instantiate();

    assertEquals(1, instance.exports.main(0, 1));
    assertEquals(33, instance.exports.main(5, 33));
  }

  test(true);
  test(false);