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Call postblit when emplacing a struct. Fix #81

This commit is contained in:
Eugen Wissner 2019-01-27 07:18:53 +01:00
parent a505a033ab
commit 0a2798cc96
1 changed files with 31 additions and 30 deletions
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61
source/tanya/conv.d
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@ -5,7 +5,7 @@
/**
* This module provides functions for converting between different types.
*
* 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)
@ -62,15 +62,8 @@ version (unittest)
*/
T emplace(T, U, Args...)(void[] memory, U outer, auto ref Args args)
if (!isAbstractClass!T && isInnerClass!T && is(typeof(T.outer) == U))
in
{
assert(memory.length >= stateSize!T);
}
out (result)
{
assert(memory.ptr is (() @trusted => cast(void*) result)());
}
do
in (memory.length >= stateSize!T)
out (result; memory.ptr is (() @trusted => cast(void*) result)())
{
copy(typeid(T).initializer, memory);
@ -88,15 +81,8 @@ do
/// ditto
T emplace(T, Args...)(void[] memory, auto ref Args args)
if (is(T == class) && !isAbstractClass!T && !isInnerClass!T)
in
{
assert(memory.length == stateSize!T);
}
out (result)
{
assert(memory.ptr is (() @trusted => cast(void*) result)());
}
do
in (memory.length == stateSize!T)
out (result; memory.ptr is (() @trusted => cast(void*) result)())
{
copy(typeid(T).initializer, memory);
@ -141,15 +127,8 @@ do
/// ditto
T* emplace(T, Args...)(void[] memory, auto ref Args args)
if (!isAggregateType!T && (Args.length <= 1))
in
{
assert(memory.length >= T.sizeof);
}
out (result)
{
assert(memory.ptr is result);
}
do
in (memory.length >= T.sizeof)
out (result; memory.ptr is result)
{
auto result = (() @trusted => cast(T*) memory.ptr)();
static if (Args.length == 1)
@ -184,8 +163,8 @@ private void initializeOne(T)(ref void[] memory, ref T* result) @trusted
/// ditto
T* emplace(T, Args...)(void[] memory, auto ref Args args)
if (!isPolymorphicType!T && isAggregateType!T)
in(memory.length >= T.sizeof)
out(result; memory.ptr is result)
in (memory.length >= T.sizeof)
out (result; memory.ptr is result)
{
auto result = (() @trusted => cast(T*) memory.ptr)();
@ -204,6 +183,10 @@ out(result; memory.ptr is result)
{
((ref arg) @trusted =>
copy((cast(void*) &arg)[0 .. T.sizeof], memory))(args[0]);
static if (hasElaborateCopyConstructor!T)
{
result.__postblit();
}
}
else static if (is(typeof({ T t = T(args); })))
{
@ -292,6 +275,24 @@ out(result; memory.ptr is result)
assert(emplace!SEntry(cast(void[]) mem[0 .. 1]).content == 0);
}
// Postblit is called when emplacing a struct
@nogc nothrow pure @system unittest
{
static struct S
{
bool called = false;
this(this) @nogc nothrow pure @safe
{
this.called = true;
}
}
S target;
S* sp = &target;
emplace!S(sp[0 .. 1], S());
assert(target.called);
}
/**
* Thrown if a type conversion fails.
*/