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eina: add Eina_Value helper that convert efficiently to a target native C type. 

Reviewed-by: SangHyeon Jade Lee <sh10233.lee@samsung.com>
Differential Revision: https://phab.enlightenment.org/D7650
This commit is contained in:
Cedric BAIL 2019-01-22 11:59:23 +00:00
parent d4ab211968
commit 1150cce0bf
2 changed files with 61 additions and 2 deletions
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4
doc/Doxyfile.in
View File

@ -228,7 +228,7 @@ OPTIMIZE_OUTPUT_VHDL = NO
# (default is Fortran), use: inc=Fortran f=C. Note that for custom extensions
# you also need to set FILE_PATTERNS otherwise the files are not read by doxygen.
EXTENSION_MAPPING =
EXTENSION_MAPPING = x=C
# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
# to include (a tag file for) the STL sources as input, then you should
@ -1457,7 +1457,7 @@ PREDEFINED = EINA_MAGIC_DEBUG \
# The macro definition that is found in the sources will be used.
# Use the PREDEFINED tag if you want to use a different macro definition that overrules the definition found in the source code.
EXPAND_AS_DEFINED =
EXPAND_AS_DEFINED = EINA_VALUE_CONVERT
# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
# doxygen's preprocessor will remove all references to function-like macros

59
src/lib/eina/eina_inline_value_util.x
View File

@ -16,6 +16,10 @@
* if not, see <http://www.gnu.org/licenses/>.
*/
/**
* @addtogroup Eina_Value_Value_group
* @{
*/
#ifndef EINA_INLINE_VALUE_UTIL_X_
#define EINA_INLINE_VALUE_UTIL_X_
@ -977,6 +981,57 @@ eina_value_error_get(const Eina_Value *v, Eina_Error *err)
return EINA_FALSE;
}
/// @brief For internal use only.
/// @hideinitializer
#define EINA_VALUE_CONVERT(Compress_Type, Uppercase_Compress_Type, Type) \
/**
@brief Check value type and convert contents.
@param v The value to check type and convert contents.
@param c Where to store the value contents.
@return #EINA_TRUE if type matches and fetched contents,
#EINA_FALSE on different type or failures.
@since 1.22
*/ \
static inline Eina_Bool \
eina_value_##Compress_Type##_convert(const Eina_Value *v, Type *c) \
{ \
Eina_Value dst = EINA_VALUE_EMPTY; \
Eina_Bool r = EINA_FALSE; \
\
EINA_SAFETY_ON_NULL_RETURN_VAL(c, EINA_FALSE); \
EINA_SAFETY_ON_NULL_RETURN_VAL(v, EINA_FALSE); \
\
/* Try no conversion first */ \
if (eina_value_##Compress_Type##_get(v, c)) return EINA_TRUE; \
\
if (!eina_value_setup(&dst, EINA_VALUE_TYPE_##Uppercase_Compress_Type)) return EINA_FALSE; \
if (!eina_value_convert(v, &dst)) goto on_error; \
if (!eina_value_##Compress_Type##_get(&dst, c)) goto on_error; \
r = EINA_TRUE; \
\
on_error: \
eina_value_flush(&dst); \
return r; \
}
EINA_VALUE_CONVERT(uchar, UCHAR, unsigned char);
EINA_VALUE_CONVERT(ushort, USHORT, unsigned short);
EINA_VALUE_CONVERT(uint, UINT, unsigned int);
EINA_VALUE_CONVERT(ulong, ULONG, unsigned long);
EINA_VALUE_CONVERT(uint64, UINT64, uint64_t);
EINA_VALUE_CONVERT(char, CHAR, char);
EINA_VALUE_CONVERT(short, SHORT, short);
EINA_VALUE_CONVERT(int, INT, int);
EINA_VALUE_CONVERT(long, LONG, long);
EINA_VALUE_CONVERT(int64, INT64, int64_t);
EINA_VALUE_CONVERT(float, FLOAT, float);
EINA_VALUE_CONVERT(double, DOUBLE, double);
EINA_VALUE_CONVERT(bool, BOOL, Eina_Bool);
EINA_VALUE_CONVERT(string, STRING, const char *);
EINA_VALUE_CONVERT(stringshare, STRINGSHARE, const char *);
EINA_VALUE_CONVERT(time, TIMESTAMP, time_t);
EINA_VALUE_CONVERT(error, ERROR, Eina_Error);
/**
* @brief Create a new #Eina_Value containing the passed parameter
* @param val The value to use
@ -1058,3 +1113,7 @@ eina_value_string_copy(const Eina_Value *val, char **str)
}
#endif
/**
* @}
*/