mirrors/phobos
1
0
Fork 0
mirror of https://github.com/dlang/phobos.git synced 2025-04-30 15:10:46 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update module & TypeTuple doc

Browse source 
Set module name = std.meta.list

Add example of TypeTuple with non-type arguments

Change usage of typetuple -> list

Fix using 'type' where non-types are acceptable
This commit is contained in:
Nick Treleaven 2014-11-10 13:43:31 +00:00 • committed by Dicebot
parent 40f4796d55
commit 70fb65af0c
2 changed files with 39 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

67
std/meta/list.d
View file

@ -1,14 +1,16 @@
// Written in the D programming language.
/**
* Templates with which to manipulate type tuples (also known as type lists).
* Templates with which to manipulate
* $(LINK2 ../template.html#TemplateArgumentList, $(I TemplateArgumentList))s.
* Such lists are known as type lists when they only contain types.
*
* Some operations on type tuples are built in to the language,
* such as TL[$(I n)] which gets the $(I n)th type from the
* type tuple. TL[$(I lwr) .. $(I upr)] returns a new type
* list that is a slice of the old one.
* Some operations on template argument lists are built in to the language,
* such as $(D Args[$(I n)]) which gets the $(I n)th element from the
* _list. $(D Args[$(I lwr) .. $(I upr)]) returns a new
* _list that is a slice of the old one. This is analogous to array slicing syntax.
*
* Several templates in this module use or operate on eponymous templates that
* Several templates in this module use or operate on enum templates that
* take a single argument and evaluate to a boolean constant. Such templates
* are referred to as $(I template predicates).
*
@ -18,29 +20,26 @@
* Modern C++ Design),
* Andrei Alexandrescu (Addison-Wesley Professional, 2001)
* Macros:
* WIKI = Phobos/StdTypeTuple
* WIKI = Phobos/StdMeta
*
* Copyright: Copyright Digital Mars 2005 - 2009.
* License: $(WEB www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
* Authors:
* $(WEB digitalmars.com, Walter Bright),
* $(WEB klickverbot.at, David Nadlinger)
* Source: $(PHOBOSSRC std/_typetuple.d)
* Source: $(PHOBOSSRC std/meta/_list.d)
*/
/* Copyright Digital Mars 2005 - 2009.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
module std.typetuple;
module std.meta.list;
/**
* Creates a typetuple out of a sequence of zero or more types.
* Aliases the given compile-time list of template arguments.
*/
template TypeTuple(TList...)
{
alias TypeTuple = TList;
}
alias TypeTuple(Args...) = Args;
///
unittest
@ -52,10 +51,20 @@ unittest
{
return td[0] + cast(int)td[1];
}
assert(foo(2, 3.5) == 5);
}
///
unittest
{
alias numbers = TypeTuple!(1, 2, 3);
static int[3] arr = [numbers];
assert(arr == [1, 2, 3]);
}
/// Lists do not nest:
unittest
{
alias TL = TypeTuple!(int, double);
@ -64,8 +73,8 @@ unittest
}
/**
* Returns the index of the first occurrence of type T in the
* sequence of zero or more types TList.
* Returns the index of the first occurrence of T in the
* sequence of zero or more elements TList.
* If not found, -1 is returned.
*/
template staticIndexOf(T, TList...)
@ -82,7 +91,7 @@ template staticIndexOf(alias T, TList...)
///
unittest
{
import std.typetuple;
import std.meta.list;
import std.stdio;
void foo()
@ -147,7 +156,7 @@ unittest
alias IndexOf = staticIndexOf;
/**
* Returns a typetuple created from TList with the first occurrence,
* Returns a list created from TList with the first occurrence,
* if any, of T removed.
*/
template Erase(T, TList...)
@ -205,7 +214,7 @@ unittest
/**
* Returns a typetuple created from TList with the all occurrences,
* Returns a list created from TList with all occurrences,
* if any, of T removed.
*/
template EraseAll(T, TList...)
@ -265,8 +274,8 @@ unittest
/**
* Returns a typetuple created from TList with the all duplicate
* types removed.
* Returns a list created from TList with all duplicate
* elements removed.
*/
template NoDuplicates(TList...)
{
@ -296,8 +305,8 @@ unittest
/**
* Returns a typetuple created from TList with the first occurrence
* of type T, if found, replaced with type U.
* Returns a list created from TList with the first occurrence
* of T, if found, replaced with U.
*/
template Replace(T, U, TList...)
{
@ -376,8 +385,8 @@ unittest
}
/**
* Returns a typetuple created from TList with all occurrences
* of type T, if found, replaced with type U.
* Returns a list created from TList with each occurrence
* of T, if found, replaced with U.
*/
template ReplaceAll(T, U, TList...)
{
@ -456,7 +465,7 @@ unittest
}
/**
* Returns a typetuple created from TList with the order reversed.
* Returns a list created from TList with the order reversed.
*/
template Reverse(TList...)
{
@ -509,7 +518,7 @@ unittest
}
/**
* Returns the typetuple TList with the types sorted so that the most
* Returns the list TList with the types sorted so that the most
* derived types come first.
*/
template DerivedToFront(TList...)
@ -652,8 +661,8 @@ unittest
/**
* Filters a $(D TypeTuple) using a template predicate. Returns a
* $(D TypeTuple) of the elements which satisfy the predicate.
* Filters a list using a template predicate. Returns a
* list of the elements which satisfy the predicate.
*/
template Filter(alias pred, TList...)
{

2
std/typelist.d
View file

@ -54,7 +54,7 @@ version(unittest) {
* $(D TypeList)s are passed to other templates as alias parameters
* To create an empty list use $(D TypeList!())
*
* $(D TypeList) efines several "methods":
* $(D TypeList) defines several "methods":
*
* $(D_PARAM toTuple), $(D_PARAM head), $(D_PARAM tail), $(D_PARAM length), $(D_PARAM isEmpty)
*