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Bad error message when function is annotated with an empty tuple () #4646

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KotlinIsland opened this issue Feb 6, 2023 · 0 comments
Closed

Bad error message when function is annotated with an empty tuple () #4646

KotlinIsland opened this issue Feb 6, 2023 · 0 comments
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alpha 1 bug effort: small priority: low
Milestone
v6.1

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@KotlinIsland
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def bar(a: ()): ...
*** Settings ***
Library  asdf

*** Test Cases ***
Asdf
    bar  1  # ValueError: Argument 'a' got value '1' that cannot be converted to .
@pekkaklarck pekkaklarck added this to the v6.1 milestone Feb 6, 2023
@pekkaklarck pekkaklarck mentioned this issue Feb 6, 2023
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yanne pushed a commit that referenced this issue Mar 18, 2023
@pekkaklarck @yanne
Fix handling empty unions in argument conversion.
4953b99 
It is now an explicit error to use `a: Union` or `a: ()`.
The error message also explains that an empty union isn't allowed.
Fixes #4638. Fixes #4646.
@pekkaklarck pekkaklarck changed the title (🐞) Bad error message when function is annotated with an empty tuple () Bad error message when function is annotated with an empty tuple () Jun 5, 2023
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alpha 1 bug effort: small priority: low
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@pekkaklarck @KotlinIsland