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