diff options
Diffstat (limited to 'lib/system/helpers.nim')
| -rw-r--r-- | lib/system/helpers.nim | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/lib/system/helpers.nim b/lib/system/helpers.nim index fb1218684..a7e47915e 100644 --- a/lib/system/helpers.nim +++ b/lib/system/helpers.nim @@ -1,11 +1,28 @@ -## helpers used system.nim and other modules, avoids code duplication while -## also minimizing symbols exposed in system.nim +# helpers used system.nim and other modules, avoids code duplication while +# also minimizing symbols exposed in system.nim # # TODO: move other things here that should not be exposed in system.nim proc lineInfoToString(file: string, line, column: int): string = file & "(" & $line & ", " & $column & ")" -proc `$`(info: type(instantiationInfo(0))): string = +type InstantiationInfo = tuple[filename: string, line: int, column: int] + +proc `$`(info: InstantiationInfo): string = # The +1 is needed here + # instead of overriding `$` (and changing its meaning), consider explicit name. lineInfoToString(info.fileName, info.line, info.column+1) + +proc isNamedTuple(T: type): bool = + ## return true for named tuples, false for any other type. + when T isnot tuple: result = false + else: + var t: T + for name, _ in t.fieldPairs: + when name == "Field0": + return compiles(t.Field0) + else: + return true + # empty tuple should be un-named, + # see https://github.com/nim-lang/Nim/issues/8861#issue-356631191 + return false |