* Don't throw exceptions twice when converting to Algorithm object
Removes match statements like
```rust
let Ok(ConversionResult::Success(algorithm)) = Algorithm::new(cx, value.handle())
else {
return Err(Error::Syntax);
};
```
These don't cause issues if `Algorithm::new` returns `Ok(ConversionResult::Failure`,
but in the case of `Err(())` the implementation already called `throw_type_error`
and we must not throw an additional Syntax error, otherwise we'll crash.
Luckily, this case is already handled elsewhere by the
`value_from_js_object` macro.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Test that calling subtlecrypto methods with empty algorithm objects throws a TypeError
The WebCryptoAPI spec does not tell us which error to throw exactly, but
according to https://webidl.spec.whatwg.org/ it should be a TypeError.
This previously crashed servo.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
---------
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
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