bvisness/growtable-nogc.js

## growtable-nogc.js
function test(msg, f) {
  try {
    f();
    console.log(`${msg}: ok`);
  } catch (e) {
    console.log(`${msg}: fail (${e})`);
  }
}

function printTable(t) {
  let result = "[";
  for (let i = 0; i < t.length; i++) {
    if (i > 0) {
      result += ", ";
    }
    result += t.get(i);
  }
  result += "]";
  console.log(result);
}

// const bytes = wasmTextToBinary(`(module
//   (table $f (export "f") 0 funcref)
//   (table $e (export "e") 0 externref)

//   (func (export "growF") (result i32)
//     (table.grow $f (ref.null func) (i32.const 1))
//   )
//   (func (export "growE") (result i32)
//     (table.grow $e (ref.null extern) (i32.const 1))
//   )
// )`);
// console.log(bytes);
const bytes = new Uint8Array([
  0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,3,2,0,0,4,7,2,112,0,0,111,0,0,7,25,4,1,102,1,0,1,101,1,1,5,103,114,111,119,70,0,0,5,103,114,111,119,69,0,1,10,21,2,9,0,208,112,65,1,252,15,0,11,9,0,208,111,65,1,252,15,1,11,0,14,4,110,97,109,101,5,7,2,0,1,102,1,1,101
]);
const { f, e, growF, growE } = new WebAssembly.Instance(
  new WebAssembly.Module(bytes),
).exports;

console.log("===== funcref =====");
test("f.grow(1)", () => f.grow(1));
test("f.grow(1, null)", () => f.grow(1, null));
test("f.grow(1, undefined)", () => f.grow(1, undefined));
test("(table.grow $f)", () => growF());
printTable(f);

console.log("\n===== externref =====");
test("e.grow(1)", () => e.grow(1));
test("e.grow(1, null)", () => e.grow(1, null));
test("e.grow(1, undefined)", () => e.grow(1, undefined));
test("(table.grow $e)", () => growE());
printTable(e);

## growtable.html
<!DOCTYPE html>
<head>
    <script src="growtable.js"></script>
</head>
<body>
    Open yer console
</body>

## growtable.js
function test(msg, f) {
  try {
    f();
    console.log(`${msg}: ok`);
  } catch (e) {
    console.log(`${msg}: fail (${e})`);
  }
}

function printTable(t) {
  let result = "[";
  for (let i = 0; i < t.length; i++) {
    if (i > 0) {
      result += ", ";
    }
    result += t.get(i);
  }
  result += "]";
  console.log(result);
}

// const bytes = wasmTextToBinary(`(module
//   (table $f (export "f") 0 funcref)
//   (table $e (export "e") 0 externref)
//   (table $a (export "a") 0 anyref)
//   (table $s (export "s") 0 structref)

//   (func (export "growF") (result i32)
//     (table.grow $f (ref.null func) (i32.const 1))
//   )
//   (func (export "growE") (result i32)
//     (table.grow $e (ref.null extern) (i32.const 1))
//   )
//   (func (export "growA") (result i32)
//     (table.grow $a (ref.null any) (i32.const 1))
//   )
//   (func (export "growS") (result i32)
//     (table.grow $s (ref.null struct) (i32.const 1))
//   )
// )`);
// console.log(bytes);
const bytes = new Uint8Array([
  0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,5,4,0,0,0,0,4,14,4,112,0,0,111,0,0,99,110,0,0,107,0,0,7,49,8,1,102,1,0,1,101,1,1,1,97,1,2,1,115,1,3,5,103,114,111,119,70,0,0,5,103,114,111,119,69,0,1,5,103,114,111,119,65,0,2,5,103,114,111,119,83,0,3,10,41,4,9,0,208,112,65,1,252,15,0,11,9,0,208,111,65,1,252,15,1,11,9,0,208,110,65,1,252,15,2,11,9,0,208,107,65,1,252,15,3,11,0,20,4,110,97,109,101,5,13,4,0,1,102,1,1,101,2,1,97,3,1,115
]);
const { f, e, a, s, growF, growE, growA, growS } = new WebAssembly.Instance(
  new WebAssembly.Module(bytes),
).exports;

console.log("===== funcref =====");
test("f.grow(1)", () => f.grow(1));
test("f.grow(1, null)", () => f.grow(1, null));
test("f.grow(1, undefined)", () => f.grow(1, undefined));
test("(table.grow $f)", () => growF());
printTable(f);

console.log("\n===== externref =====");
test("e.grow(1)", () => e.grow(1));
test("e.grow(1, null)", () => e.grow(1, null));
test("e.grow(1, undefined)", () => e.grow(1, undefined));
test("(table.grow $e)", () => growE());
printTable(e);

console.log("\n===== anyref =====");
test("a.grow(1)", () => a.grow(1));
test("a.grow(1, null)", () => a.grow(1, null));
test("a.grow(1, undefined)", () => a.grow(1, undefined));
test("(table.grow $a)", () => growA());
printTable(a);

console.log("\n===== structref =====");
test("s.grow(1)", () => s.grow(1));
test("s.grow(1, null)", () => s.grow(1, null));
test("s.grow(1, undefined)", () => s.grow(1, undefined));
test("(table.grow $s)", () => growS());
printTable(s);
	function test(msg, f) {
	try {
	f();
	console.log(`${msg}: ok`);
	} catch (e) {
	console.log(`${msg}: fail (${e})`);
	}
	}

	function printTable(t) {
	let result = "[";
	for (let i = 0; i < t.length; i++) {
	if (i > 0) {
	result += ", ";
	}
	result += t.get(i);
	}
	result += "]";
	console.log(result);
	}

	// const bytes = wasmTextToBinary(`(module
	// (table $f (export "f") 0 funcref)
	// (table $e (export "e") 0 externref)

	// (func (export "growF") (result i32)
	// (table.grow $f (ref.null func) (i32.const 1))
	// )
	// (func (export "growE") (result i32)
	// (table.grow $e (ref.null extern) (i32.const 1))
	// )
	// )`);
	// console.log(bytes);
	const bytes = new Uint8Array([
	0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,3,2,0,0,4,7,2,112,0,0,111,0,0,7,25,4,1,102,1,0,1,101,1,1,5,103,114,111,119,70,0,0,5,103,114,111,119,69,0,1,10,21,2,9,0,208,112,65,1,252,15,0,11,9,0,208,111,65,1,252,15,1,11,0,14,4,110,97,109,101,5,7,2,0,1,102,1,1,101
	]);
	const { f, e, growF, growE } = new WebAssembly.Instance(
	new WebAssembly.Module(bytes),
	).exports;

	console.log("===== funcref =====");
	test("f.grow(1)", () => f.grow(1));
	test("f.grow(1, null)", () => f.grow(1, null));
	test("f.grow(1, undefined)", () => f.grow(1, undefined));
	test("(table.grow $f)", () => growF());
	printTable(f);

	console.log("\n===== externref =====");
	test("e.grow(1)", () => e.grow(1));
	test("e.grow(1, null)", () => e.grow(1, null));
	test("e.grow(1, undefined)", () => e.grow(1, undefined));
	test("(table.grow $e)", () => growE());
	printTable(e);
	<!DOCTYPE html>
	<head>
	<script src="growtable.js"></script>
	</head>
	<body>
	Open yer console
	</body>