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Added zero initialization of implicit dynamic array items

Browse source 
https://forum.zdoom.org/viewtopic.php?t=60111
This commit is contained in:
alexey.lysiuk 2018-04-05 11:43:43 +03:00
parent b1d33d1bba
commit 7bd281ddc9
1 changed files with 42 additions and 14 deletions
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56
src/scripting/backend/dynarrays.cpp
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@ -54,6 +54,20 @@ typedef TArray<void*> FDynArray_Ptr;
typedef TArray<DObject*> FDynArray_Obj; typedef TArray<DObject*> FDynArray_Obj;
typedef TArray<FString> FDynArray_String; typedef TArray<FString> FDynArray_String;
// The following macros are used to zero initialize items implicitly added to a dynamic array
// Some function like Insert() and Resize() can append such items during their operation
// It's more natural for a scripting language to have them initialized
// This is a must for DObject pointers because of garbage collection
#define PARAM_DYNARRAY_SIZE_PROLOGUE(type) \
PARAM_SELF_STRUCT_PROLOGUE(type); \
const unsigned oldSize = self->Size();
#define DYNARRAY_FILL_ITEMS_SKIP(skip) \
const int fillCount = int(self->Size() - oldSize) - skip; \
if (fillCount > 0) memset(&(*self)[oldSize], 0, sizeof(*self)[0] * fillCount);
//----------------------------------------------------- //-----------------------------------------------------
// //
// Int8 array // Int8 array
@ -107,10 +121,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_I8, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_I8, Insert) DEFINE_ACTION_FUNCTION(FDynArray_I8, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I8); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I8);
PARAM_INT(index); PARAM_INT(index);
PARAM_INT(val); PARAM_INT(val);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -131,9 +146,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_I8, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_I8, Resize) DEFINE_ACTION_FUNCTION(FDynArray_I8, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I8); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I8);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -210,10 +226,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_I16, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_I16, Insert) DEFINE_ACTION_FUNCTION(FDynArray_I16, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I16); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I16);
PARAM_INT(index); PARAM_INT(index);
PARAM_INT(val); PARAM_INT(val);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -234,9 +251,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_I16, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_I16, Resize) DEFINE_ACTION_FUNCTION(FDynArray_I16, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I16); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I16);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -313,10 +331,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_I32, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_I32, Insert) DEFINE_ACTION_FUNCTION(FDynArray_I32, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I32); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I32);
PARAM_INT(index); PARAM_INT(index);
PARAM_INT(val); PARAM_INT(val);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -337,9 +356,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_I32, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_I32, Resize) DEFINE_ACTION_FUNCTION(FDynArray_I32, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I32); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_I32);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -416,10 +436,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_F32, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_F32, Insert) DEFINE_ACTION_FUNCTION(FDynArray_F32, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F32); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_F32);
PARAM_INT(index); PARAM_INT(index);
PARAM_FLOAT(val); PARAM_FLOAT(val);
self->Insert(index, (float)val); self->Insert(index, (float)val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -440,9 +461,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_F32, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_F32, Resize) DEFINE_ACTION_FUNCTION(FDynArray_F32, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F32); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_F32);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -519,10 +541,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_F64, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_F64, Insert) DEFINE_ACTION_FUNCTION(FDynArray_F64, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F64); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_F64);
PARAM_INT(index); PARAM_INT(index);
PARAM_FLOAT(val); PARAM_FLOAT(val);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -543,9 +566,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_F64, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_F64, Resize) DEFINE_ACTION_FUNCTION(FDynArray_F64, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F64); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_F64);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -622,10 +646,11 @@ DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Insert) DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Ptr); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_Ptr);
PARAM_INT(index); PARAM_INT(index);
PARAM_POINTER(val, void); PARAM_POINTER(val, void);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -646,9 +671,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Resize) DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Ptr); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_Ptr);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }
@ -727,11 +753,12 @@ DEFINE_ACTION_FUNCTION(FDynArray_Obj, Delete)
DEFINE_ACTION_FUNCTION(FDynArray_Obj, Insert) DEFINE_ACTION_FUNCTION(FDynArray_Obj, Insert)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_Obj);
PARAM_INT(index); PARAM_INT(index);
PARAM_OBJECT(val, DObject); PARAM_OBJECT(val, DObject);
GC::WriteBarrier(val); GC::WriteBarrier(val);
self->Insert(index, val); self->Insert(index, val);
DYNARRAY_FILL_ITEMS_SKIP(1);
return 0; return 0;
} }
@ -752,9 +779,10 @@ DEFINE_ACTION_FUNCTION(FDynArray_Obj, Grow)
DEFINE_ACTION_FUNCTION(FDynArray_Obj, Resize) DEFINE_ACTION_FUNCTION(FDynArray_Obj, Resize)
{ {
PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj); PARAM_DYNARRAY_SIZE_PROLOGUE(FDynArray_Obj);
PARAM_INT(count); PARAM_INT(count);
self->Resize(count); self->Resize(count);
DYNARRAY_FILL_ITEMS_SKIP(0);
return 0; return 0;
} }