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Fix literals not working with strings in structs

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This commit is contained in:
Doyle Thai 2018-01-04 16:07:18 +11:00
parent 18967312d6
commit 8209593f57
2 changed files with 125 additions and 57 deletions
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142
dqn.h
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@ -147,6 +147,7 @@ typedef float f32;
#define DQN_ALIGN_POW_4(val) DQN_ALIGN_POW_N(val, 4)
#define DQN_INVALID_CODE_PATH 0
#define DQN_CHAR_COUNT(charArray) DQN_ARRAY_COUNT(charArray) - 1
#define DQN_ARRAY_COUNT(array) (sizeof(array) / sizeof(array[0]))
#define DQN_PI 3.14159265359f
@ -271,11 +272,13 @@ public:
};
};
typedef u8 *Allocator(DqnMemAPI::Request request);
static Request RequestRealloc(const DqnMemAPI memAPI, void *const oldMemPtr, const size_t oldSize, const size_t newSize);
static Request RequestAlloc (const DqnMemAPI memAPI, const size_t size, const bool clearToZero);
static Request RequestFree (const DqnMemAPI memAPI, void *const ptrToFree, const size_t sizeToFree);
typedef u8 *Allocator(DqnMemAPI::Request request);
bool IsValid() const { return (callback != nullptr); }
Allocator *callback;
void *userContext;
@ -438,11 +441,14 @@ private:
// String allocates +1 extra byte for the null-terminator to be completely compatible with
// C style strings, but this is not reflected in the capacity or len, and is hidden from the user.
// NOTE: Pasting tokens doesn't do anything with preprocessor directives IF the preprocessor finds
// a stringify or paste operation (# or ##) so we need this level of indirection.
#define DQN_TOKEN_COMBINE(x, y) x ## y
#define DQN_TOKEN_COMBINE2(x, y) DQN_TOKEN_COMBINE(x, y)
// Usage: DqnString example = DQN_STRING_LITERAL(example, "hello world");
#define DQN_STRING_LITERAL(dqnstring, literal) \
{}; \
char dqnstring##_[] = literal; \
dqnstring.InitLiteralNoAlloc(dqnstring##_, DQN_ARRAY_COUNT(dqnstring##_) - 1);
#define DQN_STRING_LITERAL(srcVariable, literal) \
DQN_STRING_LITERAL_INTERNAL1(srcVariable, literal, DQN_TOKEN_COMBINE2(dqnstring_, __COUNTER__))
class DqnString
{
@ -461,7 +467,8 @@ public:
bool InitLiteral(char const *const cstr, DqnMemAPI const api = DqnMemAPI_HeapAllocator());
bool InitLiteral(char const *const cstr, i32 const lenInBytes, DqnMemStack *const stack);
bool InitLiteral (char const *const cstr, i32 const lenInBytes, DqnMemAPI const api = DqnMemAPI_HeapAllocator());
bool InitLiteral(char const *const cstr, i32 const lenInBytes,
DqnMemAPI const api = DqnMemAPI_HeapAllocator());
bool InitWLiteral(const wchar_t *const cstr, DqnMemStack *const stack);
bool InitWLiteral(const wchar_t *const cstr, const DqnMemAPI api = DqnMemAPI_HeapAllocator());
@ -478,16 +485,31 @@ public:
// The function automatically null-terminates the output string.
// bufSize: The size of the buffer in wchar_t characters.
// return: -1 if invalid, or if bufSize is 0 the required buffer length in wchar_t characters
// return: -1 if invalid, or if bufSize is 0 the required buffer length in wchar_t
// characters
i32 ToWCharUseBuf(wchar_t *const buf, const i32 bufSize);
// returns a malloc() string, needs to be freed using free(..);
wchar_t *ToWChar(DqnMemAPI api = DqnMemAPI_HeapAllocator());
};
DQN_FILE_SCOPE DqnString DqnString_(const DqnMemAPI api);
// returns: Initialised string,
DQN_FILE_SCOPE DqnString DqnString_(i32 const len, DqnMemAPI const api = DqnMemAPI_HeapAllocator());
DQN_FILE_SCOPE DqnString DqnString_(i32 const len, DqnMemStack *const stack);
DQN_FILE_SCOPE DqnString DqnString_(DqnMemAPI const api = DqnMemAPI_HeapAllocator());
DQN_FILE_SCOPE DqnString DqnString_(DqnMemStack *const stack);
// NOTE: First level of indirection needs to turn the combined dqnstring_(guid) into a name. Otherwise
// each use of literalVarName will increment __COUNTER__
#define DQN_STRING_LITERAL_INTERNAL1(srcVariable, literal, literalVarName) \
DQN_STRING_LITERAL_INTERNAL2(srcVariable, literal, literalVarName)
#define DQN_STRING_LITERAL_INTERNAL2(srcVariable, literal, literalVarName) \
{}; \
char literalVarName[] = literal; \
srcVariable.InitLiteralNoAlloc(literalVarName, DQN_CHAR_COUNT(literalVarName))
////////////////////////////////////////////////////////////////////////////////
// #DqnArray Public API - CPP Dynamic Array with Templates
////////////////////////////////////////////////////////////////////////////////
@ -524,6 +546,37 @@ struct DqnArray
void RemoveStable(i64 *indexList, const i64 numIndexes);
};
template <typename T>
DQN_FILE_SCOPE DqnArray<T> DqnArray_(i64 const size,
DqnMemAPI const api = DqnMemAPI_HeapAllocator())
{
DqnArray<T> result;
bool init = result.Init(size, api);
DQN_ASSERT_HARD(init);
return result;
}
template <typename T>
DQN_FILE_SCOPE DqnArray<T> DqnArray_(i64 const size, DqnMemStack *const stack)
{
DqnArray<T> result = DqnArray_<T>(size, DqnMemAPI_StackAllocator(stack));
return result;
}
template <typename T>
DQN_FILE_SCOPE DqnArray<T> DqnArray_(DqnMemAPI const api = DqnMemAPI_HeapAllocator())
{
DqnArray<T> result = DqnArray_<T>(0, api);
return result;
}
template <typename T>
DQN_FILE_SCOPE DqnArray<T> DqnArray_(DqnMemStack *const stack)
{
DqnArray<T> result = DqnArray_<T>(0, stack);
return result;
}
template <typename T>
bool DqnArray<T>::Init(const i64 size, DqnMemStack *const stack)
{
@ -1947,10 +2000,10 @@ struct DqnFile
// fileOffset: The byte offset to starting writing from.
// return: The number of bytes written. 0 if invalid args or it failed to write.
size_t Write(u8 const &buf, size_t const numBytesToWrite, size_t const fileOffset);
size_t Write(u8 const *const buf, size_t const numBytesToWrite, size_t const fileOffset);
// return: The number of bytes read. 0 if invalid args or it failed to read.
size_t Read (u8 &buf, size_t const numBytesToRead);
size_t Read (u8 *const buf, size_t const numBytesToRead);
// File close invalidates the handle after it is called.
void Close();
@ -1962,8 +2015,8 @@ struct DqnFile
// used. Will be valid only if function returns true. This is basically the return value
// of Read()
// return: FALSE if insufficient bufferSize OR file access failure OR invalid args (i.e nullptr)
static bool ReadEntireFile (char const *const path, u8 &buf, size_t const bufSize, size_t &bytesRead);
static bool ReadEntireFileW(wchar_t const *const path, u8 &buf, size_t const bufSize, size_t &bytesRead);
static bool ReadEntireFile (char const *const path, u8 *const buf, size_t const bufSize, size_t &bytesRead);
static bool ReadEntireFileW(wchar_t const *const path, u8 *const buf, size_t const bufSize, size_t &bytesRead);
// bufSize: Pass in ref to a size_t to fill out with the size of the returned buffer. Holds invalid data
// if the returned ptr is null.
@ -2737,12 +2790,7 @@ DQN_FILE_SCOPE bool DqnAssertInternal(const bool result, const char *const file,
va_end(argList);
}
#ifdef DQN_WIN32_PLATFORM
DqnWin32_OutputDebugString(formatStr, file, lineNum, expr, userMsg);
#else
printf(formatStr, file, lineNum, expr, userMsg);
#endif
(*((i32 *)0)) = 0;
}
return result;
@ -5192,19 +5240,29 @@ DQN_FILE_SCOPE i32 Dqn_I32ToWstr(i32 value, wchar_t *buf, i32 bufSize)
////////////////////////////////////////////////////////////////////////////////
// #DqnString Impleemntation
////////////////////////////////////////////////////////////////////////////////
DQN_FILE_SCOPE DqnString DqnString_(const DqnMemAPI api)
DQN_FILE_SCOPE DqnString DqnString_(i32 const len, DqnMemAPI const api)
{
DqnString result;
bool init = result.InitSize(0, api);
bool init = result.InitSize(len, api);
DQN_ASSERT_HARD(init);
return result;
}
DQN_FILE_SCOPE DqnString DqnString_(i32 const len, DqnMemStack *const stack)
{
DqnString result = DqnString_(len, DqnMemAPI_StackAllocator(stack));
return result;
}
DQN_FILE_SCOPE DqnString DqnString_(DqnMemAPI const api)
{
DqnString result = DqnString_(0, api);
return result;
}
DQN_FILE_SCOPE DqnString DqnString_(DqnMemStack *const stack)
{
DqnString result;
bool init = result.InitSize(0, stack);
DQN_ASSERT_HARD(init);
DqnString result = DqnString_(0, stack);
return result;
}
@ -5216,21 +5274,32 @@ bool DqnString::InitSize(const i32 size, DqnMemStack *const stack)
bool DqnString::InitSize(const i32 size, const DqnMemAPI api)
{
DQN_ASSERT_HARD(size >= 0);
DQN_ASSERT(size >= 0);
if (size < 0)
{
DqnString nullString = {};
*this = nullString;
return false;
}
if (size > 0)
{
size_t allocSize = sizeof(*(this->str)) * (size + 1);
DqnMemAPI::Request info = DqnMemAPI::RequestAlloc(api, allocSize);
this->str = (char *)api.callback(info);
if (!this->str) return false;
if (!this->str)
{
return false;
}
else
}
else // size == 0
{
this->str = nullptr;
}
this->len = 0;
this->max = size;
this->len = 0;
this->memAPI = api;
return true;
}
@ -5266,8 +5335,8 @@ bool DqnString::InitLiteral(char const *const cstr, i32 const lenInBytes, DqnMem
this->str = (char *)api.callback(info);
if (!this->str) return false;
this->max = this->len;
this->len = lenInBytes;
this->max = lenInBytes;
this->memAPI = api;
for (i32 i = 0; i < this->len; i++) this->str[i] = cstr[i];
@ -5295,7 +5364,6 @@ bool DqnString::InitWLiteral(wchar_t const *const cstr, DqnMemAPI const api)
{
#if defined(DQN_IS_WIN32) && defined(DQN_WIN32_IMPLEMENTATION)
i32 requiredLen = DqnWin32_WCharToUTF8(cstr, nullptr, 0);
this->len = requiredLen - 1;
size_t allocSize = sizeof(*(this->str)) * (this->len + 1);
@ -5350,7 +5418,7 @@ bool DqnString::Expand(const i32 newMax)
if (this->str)
{
info = DqnMemAPI::RequestRealloc(this->memAPI, this->str, this->len, allocSize);
info = DqnMemAPI::RequestRealloc(this->memAPI, this->str, this->max, allocSize);
}
else
{
@ -7757,7 +7825,7 @@ bool DqnFile::OpenW(const wchar_t *const path, u32 const flags_, Action const ac
#endif
}
size_t DqnFile::Write(u8 const &buf, size_t const numBytesToWrite, size_t const fileOffset)
size_t DqnFile::Write(u8 const *const buf, size_t const numBytesToWrite, size_t const fileOffset)
{
// TODO(doyle): Implement when it's needed
if (!DQN_ASSERT_MSG(fileOffset == 0, "'fileOffset' not implemented yet")) return 0;
@ -7765,7 +7833,7 @@ size_t DqnFile::Write(u8 const &buf, size_t const numBytesToWrite, size_t const
#if defined(DQN_WIN32_PLATFORM)
DWORD bytesToWrite = (DWORD)numBytesToWrite;
DWORD bytesWritten;
BOOL result = WriteFile(this->handle, (void *)&buf, bytesToWrite, &bytesWritten, nullptr);
BOOL result = WriteFile(this->handle, (void *)buf, bytesToWrite, &bytesWritten, nullptr);
size_t numBytesWritten = (size_t)bytesWritten;
// TODO(doyle): Better logging system
@ -7787,7 +7855,7 @@ size_t DqnFile::Write(u8 const &buf, size_t const numBytesToWrite, size_t const
return numBytesWritten;
}
size_t DqnFile::Read(u8 &buf, size_t const numBytesToRead)
size_t DqnFile::Read(u8 *const buf, size_t const numBytesToRead)
{
size_t numBytesRead = 0;
if (this->handle)
@ -7797,7 +7865,7 @@ size_t DqnFile::Read(u8 &buf, size_t const numBytesToRead)
DWORD bytesRead = 0;
HANDLE win32Handle = this->handle;
BOOL result = ReadFile(win32Handle, (void *)&buf, bytesToRead, &bytesRead, nullptr);
BOOL result = ReadFile(win32Handle, (void *)buf, bytesToRead, &bytesRead, nullptr);
numBytesRead = (size_t)bytesRead;
// TODO(doyle): 0 also means it is completing async, but still valid
@ -7837,7 +7905,7 @@ u8 *DqnFile::ReadEntireFileSimpleW(wchar_t const *const path, size_t &bufSize, D
if (!buf) return nullptr;
size_t bytesRead = 0;
if (DqnFile::ReadEntireFileW(path, *buf, requiredSize, bytesRead))
if (DqnFile::ReadEntireFileW(path, buf, requiredSize, bytesRead))
{
bufSize = requiredSize;
DQN_ASSERT(bytesRead == requiredSize);
@ -7860,7 +7928,7 @@ u8 *DqnFile::ReadEntireFileSimple(char const *const path, size_t &bufSize, DqnMe
if (!buf) return nullptr;
size_t bytesRead = 0;
if (DqnFile::ReadEntireFile(path, *buf, requiredSize, bytesRead))
if (DqnFile::ReadEntireFile(path, buf, requiredSize, bytesRead))
{
bufSize = requiredSize;
DQN_ASSERT(bytesRead == requiredSize);
@ -7871,7 +7939,7 @@ u8 *DqnFile::ReadEntireFileSimple(char const *const path, size_t &bufSize, DqnMe
return nullptr;
}
bool DqnFile::ReadEntireFileW(wchar_t const *const path, u8 &buf, size_t const bufSize,
bool DqnFile::ReadEntireFileW(wchar_t const *const path, u8 *const buf, size_t const bufSize,
size_t &bytesRead)
{
if (!path) return false;
@ -7896,7 +7964,7 @@ cleanup:
return result;
}
bool DqnFile::ReadEntireFile(const char *const path, u8 &buf, size_t const bufSize,
bool DqnFile::ReadEntireFile(const char *const path, u8 *const buf, size_t const bufSize,
size_t &bytesRead)
{
if (!path) return false;

8
dqn_unit_test.cpp
View File

@ -1913,7 +1913,7 @@ void DqnFile_Test()
expectedSize);
u8 *buffer = (u8 *)calloc(1, (size_t)file.size * sizeof(u8));
DQN_ASSERT(file.Read(*buffer, (u32)file.size) == file.size);
DQN_ASSERT(file.Read(buffer, (u32)file.size) == file.size);
free(buffer);
file.Close();
@ -1971,7 +1971,7 @@ void DqnFile_Test()
size_t bytesToWrite = DqnStr_Len(writeData[i]);
u8 *dataToWrite = (u8 *)(writeData[i]);
size_t bytesWritten = file->Write(*dataToWrite, bytesToWrite, 0);
size_t bytesWritten = file->Write(dataToWrite, bytesToWrite, 0);
DQN_ASSERT(bytesWritten == bytesToWrite);
file->Close();
}
@ -1991,7 +1991,7 @@ void DqnFile_Test()
u8 *buffer = (u8 *)memStack.Push(file->size);
DQN_ASSERT(buffer);
size_t bytesRead = file->Read(*buffer, file->size);
size_t bytesRead = file->Read(buffer, file->size);
DQN_ASSERT(bytesRead == file->size);
// Verify the data is the same as we wrote out
@ -2011,7 +2011,7 @@ void DqnFile_Test()
DQN_ASSERT(buffer);
size_t bytesRead = 0;
DQN_ASSERT(DqnFile::ReadEntireFile(fileNames[i], *buffer, reqSize, bytesRead));
DQN_ASSERT(DqnFile::ReadEntireFile(fileNames[i], buffer, reqSize, bytesRead));
DQN_ASSERT(bytesRead == reqSize);
// Verify the data is the same as we wrote out