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Move memory exception into memory.lifecycle

This commit is contained in:
Eugen Wissner 2019-03-16 10:35:28 +01:00
parent b458c6a380
commit 85d7a2b9ca
17 changed files with 381 additions and 380 deletions
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1
README.md
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@ -31,7 +31,6 @@ string, Set, Hash table.
* `conv`: This module provides functions for converting between different
types.
* `encoding`: This package provides tools to work with text encodings.
* `exception`: Common exceptions and errors.
* `format`: Formatting and conversion functions.
* `functional`: Functions that manipulate other functions and their argument
lists.

3
source/tanya/container/array.d
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@ -5,7 +5,7 @@
/**
* Single-dimensioned array.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
@ -17,7 +17,6 @@ module tanya.container.array;
import core.checkedint;
import tanya.algorithm.comparison;
import tanya.algorithm.mutation;
import tanya.exception;
import tanya.functional;
import tanya.memory;
import tanya.meta.trait;

2
source/tanya/container/buffer.d
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@ -5,7 +5,7 @@
/**
* This module contains buffers designed for C-style input/output APIs.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/entry.d
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@ -5,7 +5,7 @@
/*
* Internal package used by containers that rely on entries/nodes.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/hashtable.d
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@ -5,7 +5,7 @@
/**
* Hash table.
*
* Copyright: Eugene Wissner 2018.
* Copyright: Eugene Wissner 2018-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/list.d
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@ -6,7 +6,7 @@
* This module contains singly-linked ($(D_PSYMBOL SList)) and doubly-linked
* ($(D_PSYMBOL DList)) lists.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/package.d
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@ -5,7 +5,7 @@
/**
* Abstract data types whose instances are collections of other objects.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/set.d
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@ -6,7 +6,7 @@
* This module implements a $(D_PSYMBOL Set) container that stores unique
* values without any particular order.
*
* Copyright: Eugene Wissner 2017-2018.
* Copyright: Eugene Wissner 2017-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

2
source/tanya/container/string.d
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@ -17,7 +17,7 @@
* Internally $(D_PSYMBOL String) is represented by a sequence of
* $(D_KEYWORD char)s.
*
* Copyright: Eugene Wissner 2017-2018.
* Copyright: Eugene Wissner 2017-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

58
source/tanya/exception.d
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@ -2,65 +2,15 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Common exceptions and errors.
*
* Copyright: Eugene Wissner 2017-2018.
/*
* Copyright: Eugene Wissner 2017-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
* Source: $(LINK2 https://github.com/caraus-ecms/tanya/blob/master/source/tanya/exception.d,
* tanya/exception.d)
*/
deprecated("Use tanya.memory.lifecycle instead")
module tanya.exception;
import tanya.conv;
import tanya.memory;
/**
* Error thrown if memory allocation fails.
*/
final class OutOfMemoryError : Error
{
/**
* Constructs new error.
*
* Params:
* msg = The message for the exception.
* file = The file where the exception occurred.
* line = The line number where the exception occurred.
* next = The previous exception in the chain of exceptions, if any.
*/
this(string msg = "Out of memory",
string file = __FILE__,
size_t line = __LINE__,
Throwable next = null) @nogc nothrow pure @safe
{
super(msg, file, line, next);
}
/// ditto
this(string msg,
Throwable next,
string file = __FILE__,
size_t line = __LINE__) @nogc nothrow pure @safe
{
super(msg, file, line, next);
}
}
/**
* Allocates $(D_PSYMBOL OutOfMemoryError) in a static storage and throws it.
*
* Params:
* msg = Custom error message.
*
* Throws: $(D_PSYMBOL OutOfMemoryError).
*/
void onOutOfMemoryError(string msg = "Out of memory")
@nogc nothrow pure @trusted
{
static ubyte[stateSize!OutOfMemoryError] memory;
alias PureType = OutOfMemoryError function(string) @nogc nothrow pure;
throw (cast(PureType) () => emplace!OutOfMemoryError(memory))(msg);
}
public import tanya.memory.lifecycle : onOutOfMemoryError, OutOfMemoryError;

2
source/tanya/memory/allocator.d
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@ -8,7 +8,7 @@
* Allocators are classes encapsulating memory allocation strategy. This allows
* to decouple memory management from the algorithms and the data.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

360
source/tanya/memory/lifecycle.d Normal file
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@ -0,0 +1,360 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Lifecycle management functions, types and related exceptions.
*
* Copyright: Eugene Wissner 2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
* Source: $(LINK2 https://github.com/caraus-ecms/tanya/blob/master/source/tanya/memory/init.d,
* tanya/memory/init.d)
*/
module tanya.memory.lifecycle;
import tanya.algorithm.mutation;
import tanya.conv;
import tanya.memory;
import tanya.meta.trait;
import tanya.range.primitive;
/**
* Error thrown if memory allocation fails.
*/
final class OutOfMemoryError : Error
{
/**
* Constructs new error.
*
* Params:
* msg = The message for the exception.
* file = The file where the exception occurred.
* line = The line number where the exception occurred.
* next = The previous exception in the chain of exceptions, if any.
*/
this(string msg = "Out of memory",
string file = __FILE__,
size_t line = __LINE__,
Throwable next = null) @nogc nothrow pure @safe
{
super(msg, file, line, next);
}
/// ditto
this(string msg,
Throwable next,
string file = __FILE__,
size_t line = __LINE__) @nogc nothrow pure @safe
{
super(msg, file, line, next);
}
}
/**
* Allocates $(D_PSYMBOL OutOfMemoryError) in a static storage and throws it.
*
* Params:
* msg = Custom error message.
*
* Throws: $(D_PSYMBOL OutOfMemoryError).
*/
void onOutOfMemoryError(string msg = "Out of memory")
@nogc nothrow pure @trusted
{
static ubyte[stateSize!OutOfMemoryError] memory;
alias PureType = OutOfMemoryError function(string) @nogc nothrow pure;
throw (cast(PureType) () => emplace!OutOfMemoryError(memory))(msg);
}
// From druntime
extern (C)
private void _d_monitordelete(Object h, bool det) @nogc nothrow pure;
/*
* Internal function used to create, resize or destroy a dynamic array. It
* may throw $(D_PSYMBOL OutOfMemoryError). The new
* allocated part of the array isn't initialized. This function can be trusted
* only in the data structures that can ensure that the array is
* allocated/rellocated/deallocated with the same allocator.
*
* Params:
* T = Element type of the array being created.
* allocator = The allocator used for getting memory.
* array = A reference to the array being changed.
* length = New array length.
*
* Returns: $(D_PARAM array).
*/
package(tanya) T[] resize(T)(shared Allocator allocator,
auto ref T[] array,
const size_t length) @trusted
{
if (length == 0)
{
if (allocator.deallocate(array))
{
return null;
}
else
{
onOutOfMemoryError();
}
}
void[] buf = array;
if (!allocator.reallocate(buf, length * T.sizeof))
{
onOutOfMemoryError();
}
// Casting from void[] is unsafe, but we know we cast to the original type.
array = cast(T[]) buf;
return array;
}
@nogc nothrow pure @safe unittest
{
int[] p;
p = defaultAllocator.resize(p, 20);
assert(p.length == 20);
p = defaultAllocator.resize(p, 30);
assert(p.length == 30);
p = defaultAllocator.resize(p, 10);
assert(p.length == 10);
p = defaultAllocator.resize(p, 0);
assert(p is null);
}
/*
* Destroys the object.
* Returns the memory should be freed.
*/
package(tanya) void[] finalize(T)(ref T* p)
{
if (p is null)
{
return null;
}
static if (hasElaborateDestructor!T)
{
destroy(*p);
}
return (cast(void*) p)[0 .. T.sizeof];
}
package(tanya) void[] finalize(T)(ref T p)
if (isPolymorphicType!T)
{
if (p is null)
{
return null;
}
static if (is(T == interface))
{
version(Windows)
{
import core.sys.windows.unknwn : IUnknown;
static assert(!is(T : IUnknown), "COM interfaces can't be destroyed in "
~ __PRETTY_FUNCTION__);
}
auto ob = cast(Object) p;
}
else
{
alias ob = p;
}
auto ptr = cast(void*) ob;
auto support = ptr[0 .. typeid(ob).initializer.length];
auto ppv = cast(void**) ptr;
if (!*ppv)
{
return null;
}
auto pc = cast(ClassInfo*) *ppv;
scope (exit)
{
*ppv = null;
}
auto c = *pc;
do
{
// Assume the destructor is @nogc. Leave it nothrow since the destructor
// shouldn't throw and if it does, it is an error anyway.
if (c.destructor)
{
alias DtorType = void function(Object) pure nothrow @safe @nogc;
(cast(DtorType) c.destructor)(ob);
}
}
while ((c = c.base) !is null);
if (ppv[1]) // if monitor is not null
{
_d_monitordelete(cast(Object) ptr, true);
}
return support;
}
package(tanya) void[] finalize(T)(ref T[] p)
{
destroyAll(p);
return p;
}
/**
* Destroys and deallocates $(D_PARAM p) of type $(D_PARAM T).
* It is assumed the respective entities had been allocated with the same
* allocator.
*
* Params:
* T = Type of $(D_PARAM p).
* allocator = Allocator the $(D_PARAM p) was allocated with.
* p = Object or array to be destroyed.
*/
void dispose(T)(shared Allocator allocator, auto ref T p)
{
() @trusted { allocator.deallocate(finalize(p)); }();
p = null;
}
@nogc nothrow pure @system unittest
{
static struct S
{
~this() @nogc nothrow pure @safe
{
}
}
auto p = cast(S[]) defaultAllocator.allocate(S.sizeof);
defaultAllocator.dispose(p);
}
// Works with interfaces.
@nogc nothrow pure @safe unittest
{
interface I
{
}
class C : I
{
}
auto c = defaultAllocator.make!C();
I i = c;
defaultAllocator.dispose(i);
defaultAllocator.dispose(i);
}
/**
* Constructs a new class instance of type $(D_PARAM T) using $(D_PARAM args)
* as the parameter list for the constructor of $(D_PARAM T).
*
* Params:
* T = Class type.
* A = Types of the arguments to the constructor of $(D_PARAM T).
* allocator = Allocator.
* args = Constructor arguments of $(D_PARAM T).
*
* Returns: Newly created $(D_PSYMBOL T).
*
* Precondition: $(D_INLINECODE allocator !is null)
*/
T make(T, A...)(shared Allocator allocator, auto ref A args)
if (is(T == class))
in (allocator !is null)
{
auto mem = (() @trusted => allocator.allocate(stateSize!T))();
if (mem is null)
{
onOutOfMemoryError();
}
scope (failure)
{
() @trusted { allocator.deallocate(mem); }();
}
return emplace!T(mem[0 .. stateSize!T], args);
}
/**
* Constructs a value object of type $(D_PARAM T) using $(D_PARAM args)
* as the parameter list for the constructor of $(D_PARAM T) and returns a
* pointer to the new object.
*
* Params:
* T = Object type.
* A = Types of the arguments to the constructor of $(D_PARAM T).
* allocator = Allocator.
* args = Constructor arguments of $(D_PARAM T).
*
* Returns: Pointer to the created object.
*
* Precondition: $(D_INLINECODE allocator !is null)
*/
T* make(T, A...)(shared Allocator allocator, auto ref A args)
if (!is(T == interface)
&& !is(T == class)
&& !isAssociativeArray!T
&& !isArray!T)
in (allocator !is null)
{
auto mem = (() @trusted => allocator.allocate(stateSize!T))();
if (mem is null)
{
onOutOfMemoryError();
}
scope (failure)
{
() @trusted { allocator.deallocate(mem); }();
}
return emplace!T(mem[0 .. stateSize!T], args);
}
///
@nogc nothrow pure @safe unittest
{
int* i = defaultAllocator.make!int(5);
assert(*i == 5);
defaultAllocator.dispose(i);
}
/**
* Constructs a new array with $(D_PARAM n) elements.
*
* Params:
* T = Array type.
* allocator = Allocator.
* n = Array size.
*
* Returns: Newly created array.
*
* Precondition: $(D_INLINECODE allocator !is null
* && n <= size_t.max / ElementType!T.sizeof)
*/
T make(T)(shared Allocator allocator, const size_t n)
if (isArray!T)
in (allocator !is null)
in (n <= size_t.max / ElementType!T.sizeof)
{
auto ret = allocator.resize!(ElementType!T)(null, n);
ret.uninitializedFill(ElementType!T.init);
return ret;
}
///
@nogc nothrow pure @safe unittest
{
int[] i = defaultAllocator.make!(int[])(2);
assert(i.length == 2);
assert(i[0] == int.init && i[1] == int.init);
defaultAllocator.dispose(i);
}

5
source/tanya/memory/mallocator.d
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@ -3,9 +3,10 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Allocator based on $(D_PSYMBOL malloc), $(D_PSYMBOL realloc) and $(D_PSYMBOL free).
* Allocator based on $(D_PSYMBOL malloc), $(D_PSYMBOL realloc) and
* $(D_PSYMBOL free).
*
* Copyright: Eugene Wissner 2017-2018.
* Copyright: Eugene Wissner 2017-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

3
source/tanya/memory/mmappool.d
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@ -5,7 +5,7 @@
/*
* Native allocator.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
@ -17,7 +17,6 @@ module tanya.memory.mmappool;
version (TanyaNative):
import mir.linux._asm.unistd;
import tanya.algorithm.comparison;
import tanya.memory.allocator;
import tanya.memory.op;
import tanya.os.error;

2
source/tanya/memory/op.d
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@ -5,7 +5,7 @@
/**
* Set of operations on memory blocks.
*
* Copyright: Eugene Wissner 2017-2018.
* Copyright: Eugene Wissner 2017-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)

309
source/tanya/memory/package.d
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@ -5,7 +5,7 @@
/**
* Dynamic memory management.
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
@ -14,12 +14,10 @@
*/
module tanya.memory;
import tanya.algorithm.mutation;
import tanya.conv;
import tanya.exception;
public import tanya.memory.allocator;
public import tanya.memory.lifecycle;
import tanya.meta.trait;
import tanya.range.primitive;
/**
* The mixin generates common methods for classes and structs using
@ -86,10 +84,6 @@ mixin template DefaultAllocator()
}
}
// From druntime
extern (C)
private void _d_monitordelete(Object h, bool det) @nogc nothrow pure;
shared Allocator allocator;
private shared(Allocator) getAllocatorInstance() @nogc nothrow
@ -207,302 +201,3 @@ pure nothrow @safe @nogc
{
return (size - 1) / alignment * alignment + alignment;
}
/*
* Internal function used to create, resize or destroy a dynamic array. It
* may throw $(D_PSYMBOL OutOfMemoryError). The new
* allocated part of the array isn't initialized. This function can be trusted
* only in the data structures that can ensure that the array is
* allocated/rellocated/deallocated with the same allocator.
*
* Params:
* T = Element type of the array being created.
* allocator = The allocator used for getting memory.
* array = A reference to the array being changed.
* length = New array length.
*
* Returns: $(D_PARAM array).
*/
package(tanya) T[] resize(T)(shared Allocator allocator,
auto ref T[] array,
const size_t length) @trusted
{
if (length == 0)
{
if (allocator.deallocate(array))
{
return null;
}
else
{
onOutOfMemoryError();
}
}
void[] buf = array;
if (!allocator.reallocate(buf, length * T.sizeof))
{
onOutOfMemoryError();
}
// Casting from void[] is unsafe, but we know we cast to the original type.
array = cast(T[]) buf;
return array;
}
@nogc nothrow pure @safe unittest
{
int[] p;
p = defaultAllocator.resize(p, 20);
assert(p.length == 20);
p = defaultAllocator.resize(p, 30);
assert(p.length == 30);
p = defaultAllocator.resize(p, 10);
assert(p.length == 10);
p = defaultAllocator.resize(p, 0);
assert(p is null);
}
/*
* Destroys the object.
* Returns the memory should be freed.
*/
package(tanya) void[] finalize(T)(ref T* p)
{
if (p is null)
{
return null;
}
static if (hasElaborateDestructor!T)
{
destroy(*p);
}
return (cast(void*) p)[0 .. T.sizeof];
}
package(tanya) void[] finalize(T)(ref T p)
if (isPolymorphicType!T)
{
if (p is null)
{
return null;
}
static if (is(T == interface))
{
version(Windows)
{
import core.sys.windows.unknwn : IUnknown;
static assert(!is(T : IUnknown), "COM interfaces can't be destroyed in "
~ __PRETTY_FUNCTION__);
}
auto ob = cast(Object) p;
}
else
{
alias ob = p;
}
auto ptr = cast(void*) ob;
auto support = ptr[0 .. typeid(ob).initializer.length];
auto ppv = cast(void**) ptr;
if (!*ppv)
{
return null;
}
auto pc = cast(ClassInfo*) *ppv;
scope (exit)
{
*ppv = null;
}
auto c = *pc;
do
{
// Assume the destructor is @nogc. Leave it nothrow since the destructor
// shouldn't throw and if it does, it is an error anyway.
if (c.destructor)
{
alias DtorType = void function(Object) pure nothrow @safe @nogc;
(cast(DtorType) c.destructor)(ob);
}
}
while ((c = c.base) !is null);
if (ppv[1]) // if monitor is not null
{
_d_monitordelete(cast(Object) ptr, true);
}
return support;
}
package(tanya) void[] finalize(T)(ref T[] p)
{
destroyAll(p);
return p;
}
/**
* Destroys and deallocates $(D_PARAM p) of type $(D_PARAM T).
* It is assumed the respective entities had been allocated with the same
* allocator.
*
* Params:
* T = Type of $(D_PARAM p).
* allocator = Allocator the $(D_PARAM p) was allocated with.
* p = Object or array to be destroyed.
*/
void dispose(T)(shared Allocator allocator, auto ref T p)
{
() @trusted { allocator.deallocate(finalize(p)); }();
p = null;
}
@nogc nothrow pure @system unittest
{
static struct S
{
~this() @nogc nothrow pure @safe
{
}
}
auto p = cast(S[]) defaultAllocator.allocate(S.sizeof);
defaultAllocator.dispose(p);
}
// Works with interfaces.
@nogc nothrow pure @safe unittest
{
interface I
{
}
class C : I
{
}
auto c = defaultAllocator.make!C();
I i = c;
defaultAllocator.dispose(i);
defaultAllocator.dispose(i);
}
/**
* Constructs a new class instance of type $(D_PARAM T) using $(D_PARAM args)
* as the parameter list for the constructor of $(D_PARAM T).
*
* Params:
* T = Class type.
* A = Types of the arguments to the constructor of $(D_PARAM T).
* allocator = Allocator.
* args = Constructor arguments of $(D_PARAM T).
*
* Returns: Newly created $(D_PSYMBOL T).
*
* Precondition: $(D_INLINECODE allocator !is null)
*/
T make(T, A...)(shared Allocator allocator, auto ref A args)
if (is(T == class))
in
{
assert(allocator !is null);
}
do
{
auto mem = (() @trusted => allocator.allocate(stateSize!T))();
if (mem is null)
{
onOutOfMemoryError();
}
scope (failure)
{
() @trusted { allocator.deallocate(mem); }();
}
return emplace!T(mem[0 .. stateSize!T], args);
}
/**
* Constructs a value object of type $(D_PARAM T) using $(D_PARAM args)
* as the parameter list for the constructor of $(D_PARAM T) and returns a
* pointer to the new object.
*
* Params:
* T = Object type.
* A = Types of the arguments to the constructor of $(D_PARAM T).
* allocator = Allocator.
* args = Constructor arguments of $(D_PARAM T).
*
* Returns: Pointer to the created object.
*
* Precondition: $(D_INLINECODE allocator !is null)
*/
T* make(T, A...)(shared Allocator allocator, auto ref A args)
if (!is(T == interface)
&& !is(T == class)
&& !isAssociativeArray!T
&& !isArray!T)
in
{
assert(allocator !is null);
}
do
{
auto mem = (() @trusted => allocator.allocate(stateSize!T))();
if (mem is null)
{
onOutOfMemoryError();
}
scope (failure)
{
() @trusted { allocator.deallocate(mem); }();
}
return emplace!T(mem[0 .. stateSize!T], args);
}
///
@nogc nothrow pure @safe unittest
{
int* i = defaultAllocator.make!int(5);
assert(*i == 5);
defaultAllocator.dispose(i);
}
/**
* Constructs a new array with $(D_PARAM n) elements.
*
* Params:
* T = Array type.
* allocator = Allocator.
* n = Array size.
*
* Returns: Newly created array.
*
* Precondition: $(D_INLINECODE allocator !is null
* && n <= size_t.max / ElementType!T.sizeof)
*/
T make(T)(shared Allocator allocator, const size_t n)
if (isArray!T)
in
{
assert(allocator !is null);
assert(n <= size_t.max / ElementType!T.sizeof);
}
do
{
auto ret = allocator.resize!(ElementType!T)(null, n);
ret.uninitializedFill(ElementType!T.init);
return ret;
}
///
@nogc nothrow pure @safe unittest
{
int[] i = defaultAllocator.make!(int[])(2);
assert(i.length == 2);
assert(i[0] == int.init && i[1] == int.init);
defaultAllocator.dispose(i);
}

4
source/tanya/memory/smartref.d
View File

@ -14,7 +14,7 @@
* $(LI Unique ownership)
* )
*
* Copyright: Eugene Wissner 2016-2018.
* Copyright: Eugene Wissner 2016-2019.
* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
* Mozilla Public License, v. 2.0).
* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
@ -23,10 +23,8 @@
*/
module tanya.memory.smartref;
import tanya.algorithm.comparison;
import tanya.algorithm.mutation;
import tanya.conv;
import tanya.exception;
import tanya.memory;
import tanya.meta.trait;
import tanya.range.primitive;