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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>
19 lines
433 B
Nim
19 lines
433 B
Nim
discard """
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action: compile
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errormsg: "method1(c) has an illegal effect: IO"
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line: 18
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"""
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type
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IO = object ## input/output effect
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CustomObject* = object of RootObj
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text: string
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method method1(obj: var CustomObject): string {.tags: [IO].} = obj.text & "."
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method method2(obj: var CustomObject): string = obj.text & ":"
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proc noIO() {.forbids: [IO].} =
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var c = CustomObject(text: "a")
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echo c.method2()
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echo c.method1()
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