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