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variant_object_encoder.go
125 lines (122 loc) · 4.08 KB
/
variant_object_encoder.go
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package builtin
// #include <stdio.h>
// #include <stdlib.h>
import "C"
import (
"reflect"
"unsafe"
. "github.com/godot-go/godot-go/pkg/ffi"
"github.com/godot-go/godot-go/pkg/log"
)
func CreateObjectEncoder[T Object]() objectArgumentEncoder[T] {
tfn := typeFromVariantConstructor[GDEXTENSION_VARIANT_TYPE_OBJECT]
if tfn == nil {
log.Panic("could not find type from variant constructor GDEXTENSION_VARIANT_TYPE_OBJECT")
}
vfn := variantFromTypeConstructor[GDEXTENSION_VARIANT_TYPE_OBJECT]
if vfn == nil {
log.Panic("could not find variant from type constructor GDEXTENSION_VARIANT_TYPE_OBJECT")
}
decodeTypePtrArg := func(ptr GDExtensionConstTypePtr, pOut T) {
dst := (**GodotObject)(unsafe.Pointer(pOut.AsGDExtensionTypePtr()))
src := (**GodotObject)(unsafe.Pointer(ptr))
if dst == src {
// noop
return
}
*dst = *src
}
decodeTypePtr := func(ptr GDExtensionConstTypePtr) T {
var out T
decodeTypePtrArg(ptr, out)
return out
}
encodeTypePtrArg := func(in T, pOut GDExtensionUninitializedTypePtr) {
pEnc := in.AsGDExtensionTypePtr()
*(**GodotObject)(unsafe.Pointer(pOut)) = *(**GodotObject)(unsafe.Pointer(pEnc))
}
encodeTypePtr := func(in T) GDExtensionTypePtr {
var out T
pOut := (GDExtensionTypePtr)(unsafe.Pointer(&out))
encodeTypePtrArg(in, (GDExtensionUninitializedTypePtr)(pOut))
return pOut
}
decodeVariantPtrArg := func(ptr GDExtensionConstVariantPtr, pOut T) {
pEnc := pOut.AsGDExtensionTypePtr()
CallFunc_GDExtensionTypeFromVariantConstructorFunc(
tfn,
(GDExtensionUninitializedTypePtr)(pEnc),
(GDExtensionVariantPtr)(ptr),
)
}
decodeVariantPtr := func(ptr GDExtensionConstVariantPtr) T {
var out T
decodeVariantPtrArg(ptr, out)
return out
}
encodeVariantPtrArg := func(in T, pOut GDExtensionUninitializedVariantPtr) {
enc := make([]uint8, ObjectSize)
pEnc := (GDExtensionTypePtr)(unsafe.SliceData(enc))
encodeTypePtrArg(in, (GDExtensionUninitializedTypePtr)(pEnc))
CallFunc_GDExtensionVariantFromTypeConstructorFunc(vfn, pOut, pEnc)
}
encodeVariantPtr := func(in T) GDExtensionVariantPtr {
var out Variant
pOut := (GDExtensionVariantPtr)(unsafe.Pointer(&out))
encodeVariantPtrArg(
in,
(GDExtensionUninitializedVariantPtr)(pOut),
)
return pOut
}
decodeReflectTypePtr := func(ptr GDExtensionConstTypePtr) reflect.Value {
v := decodeTypePtr(ptr)
return reflect.ValueOf(v)
}
encodeReflectTypePtrArg := func(rv reflect.Value, pOut GDExtensionUninitializedTypePtr) {
v := rv.Interface().(T)
if (Object)(v) == nil {
return
}
encodeTypePtrArg(v, pOut)
}
encodeReflectTypePtr := func(rv reflect.Value) GDExtensionTypePtr {
var out T
pOut := (GDExtensionTypePtr)(unsafe.Pointer(&out))
encodeReflectTypePtrArg(rv, (GDExtensionUninitializedTypePtr)(pOut))
return pOut
}
decodeReflectVariantPtr := func(ptr GDExtensionConstVariantPtr) reflect.Value {
v := decodeVariantPtr(ptr)
return reflect.ValueOf(v)
}
encodeReflectVariantPtrArg := func(rv reflect.Value, pOut GDExtensionUninitializedVariantPtr) {
v := rv.Interface().(T)
if (Object)(v) == nil {
CallFunc_GDExtensionInterfaceVariantNewNil(pOut)
}
encodeVariantPtrArg(v, pOut)
}
encodeReflectVariantPtr := func(rv reflect.Value) GDExtensionVariantPtr {
var out Variant
pOut := (GDExtensionVariantPtr)(unsafe.Pointer(&out))
encodeReflectVariantPtrArg(rv, (GDExtensionUninitializedVariantPtr)(pOut))
return pOut
}
return objectArgumentEncoder[T]{
DecodeTypePtrArg: decodeTypePtrArg,
DecodeTypePtr: decodeTypePtr,
EncodeTypePtrArg: encodeTypePtrArg,
EncodeTypePtr: encodeTypePtr,
DecodeVariantPtrArg: decodeVariantPtrArg,
DecodeVariantPtr: decodeVariantPtr,
EncodeVariantPtrArg: encodeVariantPtrArg,
EncodeVariantPtr: encodeVariantPtr,
decodeReflectTypePtr: decodeReflectTypePtr,
encodeReflectTypePtrArg: encodeReflectTypePtrArg,
encodeReflectTypePtr: encodeReflectTypePtr,
decodeReflectVariantPtr: decodeReflectVariantPtr,
encodeReflectVariantPtrArg: encodeReflectVariantPtrArg,
encodeReflectVariantPtr: encodeReflectVariantPtr,
}
}