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- discard """
- output: "Valid and not defined"
- """
- # test for issue #7997
- # checking for `when not defined` in a template for some compile time symbol
- # results in a compilation error of:
- # Error: obsolete usage of 'defined', use 'declared' instead
- # if the symbol is 'overloaded' by some variable or procedure, because in
- # that case the argument of `defined` is of kind `nkSym` instead of `nkIdent`
- # (for which was checked in `semexprs.semDefined`).
- block:
- # check whether a proc with the same name as the argument to `defined`
- # compiles
- proc overloaded() =
- discard
- template definedCheck(): untyped =
- when not defined(overloaded): true
- else: false
- doAssert definedCheck == true
- block:
- # check whether a variable with the same name as the argument to `defined`
- # compiles
- var overloaded: int
- template definedCheck(): untyped =
- when not defined(overloaded): true
- else: false
- doAssert definedCheck == true
- block:
- # check whether a non overloaded when check still works properly
- when not defined(validIdentifier):
- echo "Valid and not defined"
- block:
- # now check that invalid identifiers cause a compilation error
- # by using reject template.
- template reject(b) =
- static: doAssert(not compiles(b))
- reject:
- when defined(123):
- echo "Invalid identifier! Will not be echoed"
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