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misc/wasm: fix panic on os.Stdout.Sync() in the browser

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Before this change running os.Stdout.Sync() in the browser would panic
the application with:

panic: syscall/js: Value.Call: property fsync is not a function, got undefined

Afterwards Sync() becomes a noop for compatibility reasons.

Change-Id: I1fcef694beb35fdee3173f87371e1ff233b15d32
Reviewed-on: https://go-review.googlesource.com/c/143138
Reviewed-by: Richard Musiol <neelance@gmail.com>
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Nick Craig-Wood 2018-10-18 16:26:56 +01:00 committed by Richard Musiol
parent 2e88689168
commit ecccdccf3e
1 changed files with 3 additions and 0 deletions
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3
misc/wasm/wasm_exec.js
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@ -59,6 +59,9 @@
err.code = "ENOSYS";
callback(err);
},
fsync(fd, callback) {
callback(null);
},
};
}