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Add support for static variables in GDScript

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Which allows editable data associated with a particular class instead of
the instance. Scripts with static variables are kept in memory
indefinitely unless the `@static_unload` annotation is used or the
`static_unload()` method is called on the GDScript.

If the custom function `_static_init()` exists it will be called when
the class is loaded, after the static variables are set.
This commit is contained in:
George Marques 2023-04-19 11:10:35 -03:00
parent 352ebe9725
commit 0ba6048ad3
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GPG key ID: 046BD46A3201E43D
36 changed files with 689 additions and 86 deletions
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4
modules/gdscript/gdscript_vm.cpp
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@ -680,10 +680,10 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
bool awaited = false;
#endif
#ifdef DEBUG_ENABLED
int variant_address_limits[ADDR_TYPE_MAX] = { _stack_size, _constant_count, p_instance ? p_instance->members.size() : 0 };
int variant_address_limits[ADDR_TYPE_MAX] = { _stack_size, _constant_count, p_instance ? p_instance->members.size() : 0, script->static_variables.size() };
#endif
Variant *variant_addresses[ADDR_TYPE_MAX] = { stack, _constants_ptr, p_instance ? p_instance->members.ptrw() : nullptr };
Variant *variant_addresses[ADDR_TYPE_MAX] = { stack, _constants_ptr, p_instance ? p_instance->members.ptrw() : nullptr, script->static_variables.ptrw() };
#ifdef DEBUG_ENABLED
OPCODE_WHILE(ip < _code_size) {