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* .forbids pragma: defining illegal effects for proc types This patch intends to define the opposite of the .tags pragma: a way to define effects which are not allowed in a proc. * updated documentation and changelogs for the forbids pragma * renamed notTagEffects to forbiddenEffects * corrected issues of forbids pragma the forbids pragma didn't handle simple restrictions properly and it also had issues with subtyping * removed incorrect character from changelog * added test to cover the interaction of methods and the forbids pragma * covering the interaction of the tags and forbids pragmas * updated manual about the forbids pragma * removed useless statement * corrected the subtyping of proc types using the forbids pragma * updated manual for the forbids pragma * updated documentations for forbids pragma * updated nim docs * updated docs with rsttester.nim * regenerated documentation * updated rst docs * Update changelog.md Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com> * updated changelog * corrected typo Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com>
20 lines
466 B
Nim
20 lines
466 B
Nim
discard """
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action: compile
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errormsg: "type mismatch: got <ProcType2>"
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line: 19
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"""
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type MyEffect = object
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type ProcType1 = proc (i: int): void {.forbids: [MyEffect].}
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type ProcType2 = proc (i: int): void
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proc testFunc(p: ProcType1): void = p(1)
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proc toBeCalled(i: int): void {.tags: [MyEffect].} = echo $i
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let emptyTags = proc(i: int): void {.tags: [].} = echo $i
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let noTags: ProcType2 = proc(i: int): void = toBeCalled(i)
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testFunc(emptyTags)
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testFunc(noTags)
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