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Report better error message when calling a closure with wrong (number of) arguments. #17280

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karlklose opened this issue Mar 5, 2014 · 3 comments
Closed

Report better error message when calling a closure with wrong (number of) arguments. #17280

karlklose opened this issue Mar 5, 2014 · 3 comments
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P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug web-dart2js

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@karlklose
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We should tell the user that this is about a closure call and that the argument number/names may be the source of the problem.
Currently we only say that 'call$n' cannot be found.
@floitschG
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Set owner to @floitschG.
Added Started label.

@floitschG
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Unassigning. My first attempts didn't work out, so if anyone wants to take this on, please go ahead.

Removed the owner.
Added Triaged label.

@kevmoo kevmoo added P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug and removed triaged labels Mar 1, 2016
@srawlins
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srawlins commented Jul 1, 2018

Given this code:

void main() {
  var c1 = (a, b) => print('$a$b');

  c1(2);
}

dart2js shows the following error at runtime:

Error compiling to JavaScript:
main.dart:4:5:
Error: Too few positional arguments: 2 required, 1 given.

Error: Compilation failed.

Looks pretty good!

@srawlins srawlins closed this as completed Jul 1, 2018
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P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug web-dart2js
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@kevmoo @srawlins @karlklose @floitschG