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Added Object:release. Calling it is the equivalent of removing all Lua-side references to an object and doing a full garbage collection cycle (thus deleting the object from memory if nothing else in LÖVE's code is referencing it).

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Any attempt to call a method on the object after it has been released will result in an error. Object:release() returns true if it was successful, or false if not (if it has already been released previously).

--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2016-10-06 21:59:01 -03:00
parent bfb00239fd
commit 37520bd18b
7 changed files with 69 additions and 9 deletions
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src/common/Variant.cpp
+7 -5
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@@ -85,7 +85,8 @@ Variant::Variant(love::Type udatatype, void *userdata)
{
Proxy *p = (Proxy *) userdata;
data.userdata = p->object;
p->object->retain();
if (p->object)
p->object->retain();
}
else
data.userdata = userdata;
@@ -105,7 +106,7 @@ Variant::Variant(const Variant &v)
{
if (type == STRING)
data.string->retain();
else if (type == FUSERDATA)
else if (type == FUSERDATA && data.userdata != nullptr)
((love::Object *) data.userdata)->retain();
else if (type == TABLE)
data.table->retain();
@@ -127,7 +128,8 @@ Variant::~Variant()
data.string->release();
break;
case FUSERDATA:
((love::Object *) data.userdata)->release();
if (data.userdata != nullptr)
((love::Object *) data.userdata)->release();
break;
case TABLE:
data.table->release();
@@ -141,14 +143,14 @@ Variant &Variant::operator = (const Variant &v)
{
if (v.type == STRING)
v.data.string->retain();
else if (v.type == FUSERDATA)
else if (v.type == FUSERDATA && v.data.userdata != nullptr)
((love::Object *) v.data.userdata)->retain();
else if (v.type == TABLE)
v.data.table->retain();
if (type == STRING)
data.string->release();
else if (type == FUSERDATA)
else if (type == FUSERDATA && v.data.userdata != nullptr)
((love::Object *) v.data.userdata)->release();
else if (type == TABLE)
data.table->release();