type 'AudioBufferImplementation' is not a subtype of type 'AudioBuffer'

[DartBot]

This issue was originally filed by @bp74

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What steps will reproduce the problem?

1. load some audio with XMLHttpRequest
2. decode the audio
3. the success callback fails in "Checked Mode"

like this Dart Audio API sample does...
http://news.dartlang.org/2012/02/web-audio-api-and-dart.html

What is the expected output? What do you see instead?

http://api.dartlang.org/html/AudioContext.html

void decodeAudioData(ArrayBuffer audioData,
    bool successCallback(AudioBuffer audioBuffer),
    [bool errorCallback(AudioBuffer audioBuffer)])

The "successCallback" should be an (AudioBuffer) => bool.
But when you run "Checked Mode" it says:

Exception: type '(AudioBuffer) => bool' is not a subtype of type 'AudioBufferCallback' of 'successCallback'.
or
Exception: type 'AudioBufferImplementation' is not a subtype of type 'AudioBuffer' of 'value'.

What version of the product are you using? On what operating system?
Dart Editor Build 7696 32 bit, Windows 7 64 bit

[DartBot]

This comment was originally written by antonm@google.com

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Thanks a lot for report, Bernhard.

That's a case with which we don't deal correctly yet and it's related to the fact that we wrap dart:dom_depercated objects in dart:html.

We expect to get rid of this wrapping soon (in a couple of weeks).

How important this problem is for you?

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Added Area-Dartium, Triaged labels.

[DartBot]

This comment was originally written by antonm@google.com

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Added Accepted label.

[DartBot]

This comment was originally written by @bp74

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Thank you for the response. It's not very important because i have two workarounds for it: Do not use "Checked Mode" or use another code path which uses the AudioElement for audio playback. I'm sure you have a long list of ToDos, so fix it when you think it's the right time :)

[DartBot]

This comment was originally written by antonm@google.com

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Thank you, Bernhard.

[DartBot]

This comment was originally written by @bp74

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Tested with Dart Editor 8124 and it works now! Thanks.

[DartBot]

This comment was originally written by antonm@google.com

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Thanks for checking, Bernhard!

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Set owner to podivilov@google.com.
Added Fixed label.