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This commit is contained in:
Andreas Rumpf 2009-09-15 23:22:22 +02:00
commit 66a7e3d37c
489 changed files with 4593 additions and 9878 deletions
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doc/abstypes.txt Normal file → Executable file
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@ -91,7 +91,7 @@ we define our own ``+`` for dollars:
result = TDollar(int(x) + int(y))
It does not make sense to multiply a dollar with a dollar, but with a
unit-less number; and the same holds for division:
number without unit; and the same holds for division:
.. code-block::
proc `*` (x: TDollar, y: int): TDollar =
@ -121,7 +121,7 @@ But it seems we still have to repeat all this boilerplate code for
the ``TEuro`` currency. Fortunately, Nimrod has a template mechanism:
.. code-block:: nimrod
template Additive(typ: typeExpr): stmt =
template Additive(typ: typeDesc): stmt =
proc `+` *(x, y: typ): typ {.borrow.}
proc `-` *(x, y: typ): typ {.borrow.}
@ -129,13 +129,13 @@ the ``TEuro`` currency. Fortunately, Nimrod has a template mechanism:
proc `+` *(x: typ): typ {.borrow.}
proc `-` *(x: typ): typ {.borrow.}
template Multiplicative(typ, base: typeExpr): stmt =
template Multiplicative(typ, base: typeDesc): stmt =
proc `*` *(x: typ, y: base): typ {.borrow.}
proc `*` *(x: base, y: typ): typ {.borrow.}
proc `div` *(x: typ, y: base): typ {.borrow.}
proc `mod` *(x: typ, y: base): typ {.borrow.}
template Comparable(typ: typeExpr): stmt =
template Comparable(typ: typeDesc): stmt =
proc `<` * (x, y: typ): bool {.borrow.}
proc `<=` * (x, y: typ): bool {.borrow.}
proc `==` * (x, y: typ): bool {.borrow.}