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author | Simon Hafner <hafnersimon@gmail.com> | 2014-02-05 13:14:08 -0600 |
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committer | Simon Hafner <hafnersimon@gmail.com> | 2014-02-05 13:14:08 -0600 |
commit | fb85d6062a23bc205e3ae06f152d9a4a718c9349 (patch) | |
tree | 434a4d11a8b319250312e36a33e5cf4e609b8826 | |
parent | a90f0f50cf630a0fd565fd518e8fda4ff353977a (diff) | |
download | Nim-fb85d6062a23bc205e3ae06f152d9a4a718c9349.tar.gz |
tracked down a few more returns
-rw-r--r-- | doc/manual.txt | 31 | ||||
-rw-r--r-- | doc/tut1.txt | 10 | ||||
-rw-r--r-- | doc/tut2.txt | 2 |
3 files changed, 22 insertions, 21 deletions
diff --git a/doc/manual.txt b/doc/manual.txt index 1c410d5a3..3c085b612 100644 --- a/doc/manual.txt +++ b/doc/manual.txt @@ -1701,11 +1701,11 @@ algorithm returns true: result = isOrdinal(t) or t.kind in {float, float32, float64} proc isExplicitlyConvertible(a, b: PType): bool = + result = false if isImplicitlyConvertible(a, b): return true if typeEqualsOrDistinct(a, b): return true if isIntegralType(a) and isIntegralType(b): return true if isSubtype(a, b) or isSubtype(b, a): return true - return false The convertible relation can be relaxed by a user-defined type `converter`:idx:. @@ -1774,7 +1774,7 @@ Example: .. code-block:: nimrod proc p(x, y: int): int = - return x + y + result = x + y discard p(3, 4) # discard the return value of `p` @@ -1789,7 +1789,7 @@ been declared with the `discardable`:idx: pragma: .. code-block:: nimrod proc p(x, y: int): int {.discardable.} = - return x + y + result = x + y p(3, 4) # now valid @@ -2438,7 +2438,7 @@ A procedure cannot modify its parameters (unless the parameters have the type .. code-block:: nimrod proc `$` (x: int): string = # converts an integer to a string; this is a prefix operator. - return intToStr(x) + result = intToStr(x) Operators with one parameter are prefix operators, operators with two parameters are infix operators. (However, the parser distinguishes these from @@ -2452,7 +2452,7 @@ notation. (Thus an operator can have more than two parameters): .. code-block:: nimrod proc `*+` (a, b, c: int): int = # Multiply and add - return a * b + c + result = a * b + c assert `*+`(3, 4, 6) == `*`(a, `+`(b, c)) @@ -2648,11 +2648,12 @@ return values. This can be done in a cleaner way by returning a tuple: .. code-block:: nimrod proc divmod(a, b: int): tuple[res, remainder: int] = - return (a div b, a mod b) + (a div b, a mod b) var t = divmod(8, 5) + assert t.res == 1 - assert t.remainder = 3 + assert t.remainder == 3 One can use `tuple unpacking`:idx: to access the tuple's fields: @@ -2724,7 +2725,7 @@ dispatch. method eval(e: ref TPlusExpr): int = # watch out: relies on dynamic binding - return eval(e.a) + eval(e.b) + result = eval(e.a) + eval(e.b) proc newLit(x: int): ref TLiteral = new(result) @@ -2923,7 +2924,7 @@ parameters of an outer factory proc: .. code-block:: nimrod proc mycount(a, b: int): iterator (): int = - return iterator (): int = + result = iterator (): int = var x = a while x <= b: yield x @@ -3373,9 +3374,9 @@ module to illustrate this: ## requires `x` and `y` to be of the same tuple type ## generic ``==`` operator for tuples that is lifted from the components ## of `x` and `y`. + result = true for a, b in fields(x, y): - if a != b: return false - return true + if a != b: result = false Alternatively, the ``distinct`` type modifier can be applied to the type class to allow each param matching the type class to bind to a different type. @@ -3997,9 +3998,9 @@ predicate: proc re(pattern: semistatic[string]): TRegEx = when isStatic(pattern): - return precompiledRegex(pattern) + result = precompiledRegex(pattern) else: - return compile(pattern) + result = compile(pattern) Static params can also appear in the signatures of generic types: @@ -4506,7 +4507,7 @@ This is best illustrated by an example: proc p*(x: A.T1): A.T1 = # this works because the compiler has already # added T1 to A's interface symbol table - return x + 1 + result = x + 1 Import statement @@ -5197,7 +5198,7 @@ Example: {.pragma: rtl, importc, dynlib: "client.dll", cdecl.} proc p*(a, b: int): int {.rtl.} = - return a+b + result = a+b In the example a new pragma named ``rtl`` is introduced that either imports a symbol from a dynamic library or exports the symbol for dynamic library diff --git a/doc/tut1.txt b/doc/tut1.txt index b70f40f4a..5a20629a2 100644 --- a/doc/tut1.txt +++ b/doc/tut1.txt @@ -690,8 +690,8 @@ Nimrod provides the ability to overload procedures similar to C++: .. code-block:: nimrod proc toString(x: int): string = ... proc toString(x: bool): string = - if x: return "true" - else: return "false" + if x: result = "true" + else: result = "false" echo(toString(13)) # calls the toString(x: int) proc echo(toString(true)) # calls the toString(x: bool) proc @@ -1569,7 +1569,7 @@ This is best illustrated by an example: proc p*(x: A.T1): A.T1 = # this works because the compiler has already # added T1 to A's interface symbol table - return x + 1 + result = x + 1 A symbol of a module *can* be *qualified* with the ``module.symbol`` syntax. If @@ -1600,11 +1600,11 @@ rules apply: .. code-block:: nimrod # Module A - proc x*(a: int): string = return $a + proc x*(a: int): string = result = $a .. code-block:: nimrod # Module B - proc x*(a: string): string = return $a + proc x*(a: string): string = result = $a .. code-block:: nimrod # Module C diff --git a/doc/tut2.txt b/doc/tut2.txt index d2ba8b8a9..5f1767428 100644 --- a/doc/tut2.txt +++ b/doc/tut2.txt @@ -238,7 +238,7 @@ is needed: proc host*(s: TSocket): int {.inline.} = ## getter of hostAddr - return s.FHost + s.FHost var s: TSocket |