TypedArray::from(slice) sporadically fails

[rkreis-v]

Describe the Bug

Closely related to #4395 - TypedArray::from with slice input sporadically fails: "Cannot perform Construct on a detached ArrayBuffer". It uses TypedArray::view:

wasm-bindgen/crates/js-sys/src/lib.rs

Lines 6379 to 6385 in c35cc93

	impl<'a> From<&'a [$ty]> for $name {
	#[inline]
	fn from(slice: &'a [$ty]) -> $name {
	// This is safe because the `new` function makes a copy if its argument is a TypedArray
	unsafe { $name::new(&$name::view(slice)) }
	}
	}

Note that the function is not marked unsafe itself.

Steps to Reproduce

Add test case to crates/js-sys/tests/wasm/TypedArray.rs:

#[wasm_bindgen_test]
fn from_succeeds_when_heap_grows() {
    let _ = (0..10_000).map(|i| {
        Int32Array::from([i].as_slice())
    }).collect::<Vec<_>>();
}

Run test:

# cargo test --target wasm32-unknown-unknown from_succeeds_when_heap_grows
[...]
running 1 test
test TypedArray::from_succeeds_when_heap_grows ... FAIL

failures:

---- TypedArray::from_succeeds_when_heap_grows output ----
    error output:
        wasm-bindgen: imported JS function that was not marked as `catch` threw an error: Cannot perform Construct on a detached ArrayBuffer

        Stack:
        TypeError: Cannot perform Construct on a detached ArrayBuffer
            at new Int32Array (<anonymous>)

[Spxg]

Copying an js array in rust is fragile and hard to fix, so the solution is to copy it on the js side.

Try this: https://github.com/Spxg/wasm-array-cp

#[wasm_bindgen_test]
fn from_succeeds_when_heap_grows() {
    let _ = (0..10_000)
        .map(|i| ArrayBufferCopy::from_slice([i].as_slice()))
        .collect::<Vec<Int32Array>>();
}