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clarify the meaning of the 'auto' metatype; 'auto' is now bind-multiple; fixes #3224

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Araq 2015-09-14 20:25:52 +02:00
commit 0aa908c86c
7 changed files with 91 additions and 55 deletions
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lib/system.nim
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@ -78,7 +78,7 @@ type
stmt* {.magic: Stmt.} ## meta type to denote a statement (for templates)
typedesc* {.magic: TypeDesc.} ## meta type to denote a type description
void* {.magic: "VoidType".} ## meta type to denote the absence of any type
auto* = expr ## meta type for automatic type determination
auto* {.magic: Expr.} ## meta type for automatic type determination
any* = distinct auto ## meta type for any supported type
untyped* {.magic: Expr.} ## meta type to denote an expression that
## is not resolved (for templates)
@ -104,7 +104,7 @@ type
SomeNumber* = SomeInteger|SomeReal
## type class matching all number types
proc defined*(x: expr): bool {.magic: "Defined", noSideEffect.}
proc defined*(x: expr): bool {.magic: "Defined", noSideEffect, compileTime.}
## Special compile-time procedure that checks whether `x` is
## defined.
## `x` is an external symbol introduced through the compiler's
@ -125,7 +125,7 @@ when defined(nimalias):
TNumber: SomeNumber,
TOrdinal: SomeOrdinal].}
proc declared*(x: expr): bool {.magic: "Defined", noSideEffect.}
proc declared*(x: expr): bool {.magic: "Defined", noSideEffect, compileTime.}
## Special compile-time procedure that checks whether `x` is
## declared. `x` has to be an identifier or a qualified identifier.
## This can be used to check whether a library provides a certain
@ -140,11 +140,11 @@ when defined(useNimRtl):
{.deadCodeElim: on.}
proc definedInScope*(x: expr): bool {.
magic: "DefinedInScope", noSideEffect, deprecated.}
magic: "DefinedInScope", noSideEffect, deprecated, compileTime.}
## **Deprecated since version 0.9.6**: Use ``declaredInScope`` instead.
proc declaredInScope*(x: expr): bool {.
magic: "DefinedInScope", noSideEffect.}
magic: "DefinedInScope", noSideEffect, compileTime.}
## Special compile-time procedure that checks whether `x` is
## declared in the current scope. `x` has to be an identifier.
@ -160,7 +160,7 @@ proc unsafeAddr*[T](x: var T): ptr T {.magic: "Addr", noSideEffect.} =
## Cannot be overloaded.
discard
proc `type`*(x: expr): typeDesc {.magic: "TypeOf", noSideEffect.} =
proc `type`*(x: expr): typeDesc {.magic: "TypeOf", noSideEffect, compileTime.} =
## Builtin 'type' operator for accessing the type of an expression.
## Cannot be overloaded.
discard
@ -3392,7 +3392,7 @@ when hasAlloc:
x[j+i] = item[j]
inc(j)
proc compiles*(x: expr): bool {.magic: "Compiles", noSideEffect.} =
proc compiles*(x: expr): bool {.magic: "Compiles", noSideEffect, compileTime.} =
## Special compile-time procedure that checks whether `x` can be compiled
## without any semantic error.
## This can be used to check whether a type supports some operation:
@ -3456,7 +3456,7 @@ when hasAlloc and not defined(nimscript) and not defined(JS):
include "system/deepcopy"
proc procCall*(x: expr) {.magic: "ProcCall".} =
proc procCall*(x: expr) {.magic: "ProcCall", compileTime.} =
## special magic to prohibit dynamic binding for `method`:idx: calls.
## This is similar to `super`:idx: in ordinary OO languages.
##