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Added ZeroGap to AllowAppend

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This commit is contained in:
Brian Fiete 2025-01-27 09:17:45 -08:00
parent ce42dc4fbe
commit 161d9dc540
19 changed files with 334 additions and 88 deletions
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89
BeefLibs/corlib/src/String.bf
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@ -74,42 +74,86 @@ namespace System
const uint32 cStrPtrFlag = 0x40000000;
#endif
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(int count) // 0
{
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
Init(bufferSize);
mAllocSizeAndFlags = (uint_strsize)bufferSize + (int_strsize)sizeof(char8*);
mLength = 0;
}
[AllowAppend]
public this(int count) // 0
{
int bufferSize = count;
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
mPtrOrBuffer = addlPtr;
mAllocSizeAndFlags = (uint_strsize)bufferSize | cStrPtrFlag;
mLength = 0;
}
[AllowAppend(ZeroGap=true)]
public this()
{
let bufferSize = 16 - sizeof(char8*);
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
Init(bufferSize);
mAllocSizeAndFlags = (uint_strsize)bufferSize + (int_strsize)sizeof(char8*);
mLength = 0;
}
[AllowAppend]
public this()
{
let bufferSize = 8;
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
mPtrOrBuffer = addlPtr;
mAllocSizeAndFlags = (uint_strsize)bufferSize | cStrPtrFlag;
mLength = 0;
}
[AllowAppend(ZeroGap=true)]
public this(String str)
{
let count = str.mLength;
/*int a = __appendIdx;
int b = offsetof(String, mPtrOrBuffer);
if (__appendIdx == offsetof(String, mPtrOrBuffer))
{
}*/
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
Init(bufferSize);
Internal.MemCpy(Ptr, str.Ptr, count);
mLength = count;
mAllocSizeAndFlags = (uint_strsize)bufferSize + (int_strsize)sizeof(char8*);
}
[AllowAppend]
public this(String str)
{
let count = str.mLength;
/*int a = __appendIdx;
int b = offsetof(String, mPtrOrBuffer);
if (__appendIdx == offsetof(String, mPtrOrBuffer))
{
}*/
int bufferSize = count;
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
mPtrOrBuffer = addlPtr;
Internal.MemCpy(Ptr, str.Ptr, count);
mLength = count;
mAllocSizeAndFlags = (uint_strsize)bufferSize | cStrPtrFlag;
}
[AllowAppend(ZeroGap=true)]
public this(String str, int offset)
{
Debug.Assert((uint)offset <= (uint)str.Length);
@ -126,7 +170,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(String str, int offset, int count)
{
Debug.Assert((uint)offset <= (uint)str.Length);
@ -144,7 +188,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(char8 c, int count)
{
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
@ -158,7 +202,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(char8* char8Ptr)
{
let count = Internal.CStrLen(char8Ptr);
@ -173,7 +217,7 @@ namespace System
mLength = count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(char8* char8Ptr, int count)
{
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
@ -187,7 +231,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(char16* char16Ptr)
{
let count = UTF16.GetLengthAsUTF8(char16Ptr);
@ -200,7 +244,7 @@ namespace System
UTF16.Decode(char16Ptr, this);
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(Span<char16> chars)
{
let count = UTF16.GetLengthAsUTF8(chars);
@ -213,14 +257,13 @@ namespace System
UTF16.Decode(chars, this);
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(StringView strView)
{
let count = strView.Length;
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
Init(bufferSize);
let ptr = Ptr;
Internal.MemCpy(ptr, strView.Ptr, strView.Length);
mAllocSizeAndFlags = (uint_strsize)bufferSize + (int_strsize)sizeof(char8*);
@ -228,6 +271,20 @@ namespace System
}
[AllowAppend]
public this(StringView strView)
{
let count = strView.Length;
int bufferSize = count;
#unwarn
char8* addlPtr = append char8[bufferSize]*(?);
mPtrOrBuffer = addlPtr;
let ptr = Ptr;
Internal.MemCpy(ptr, strView.Ptr, strView.Length);
mAllocSizeAndFlags = (uint_strsize)bufferSize | cStrPtrFlag;
mLength = (int_strsize)strView.Length;
}
[AllowAppend(ZeroGap=true)]
public this(StringView strView, CreateFlags flags)
{
let count = strView.Length + (flags.HasFlag(.NullTerminate) ? 1 : 0);
@ -243,7 +300,7 @@ namespace System
mLength = (int32)strView.Length;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(StringView strView, int offset)
{
Debug.Assert((uint)offset <= (uint)strView.Length);
@ -261,7 +318,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(StringView strView, int offset, int count)
{
Debug.Assert((uint)offset <= (uint)strView.Length);
@ -279,7 +336,7 @@ namespace System
mLength = (int_strsize)count;
}
[AllowAppend]
[AllowAppend(ZeroGap=true)]
public this(char8[] chars, int offset, int count)
{
int bufferSize = (count == 0) ? 0 : (count - 1) & ~(sizeof(char8*) - 1);
@ -670,7 +727,7 @@ namespace System
public static implicit operator Span<char8>(String str)
{
if (str == null)
return .(null, 0);
return .((char8*)null, 0);
return .(str.Ptr, str.Length);
}