database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-12 13:01:09 +03:00
Code Activity

Factor out code generation for in-line SQL functions into a separate routine

Browse Source 
inside of expr.c.

FossilOrigin-Name: 586a65a28fc6cac77309612abc32a2e1017c65e0387f9f438f5d8ac8406da8eb
This commit is contained in:
drh
2020-01-01 13:55:08 +00:00
parent 6d67aff0e3
commit 25c4296bd9
5 changed files with 107 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
src/sqliteInt.h
View File

@@ -1712,12 +1712,18 @@ struct FuncDestructor {
#define SQLITE_FUNC_MINMAX 0x1000 /* True for min() and max() aggregates */
#define SQLITE_FUNC_SLOCHNG 0x2000 /* "Slow Change". Value constant during a
** single query - might change over time */
#define SQLITE_FUNC_AFFINITY 0x4000 /* Built-in affinity() function */
#define SQLITE_FUNC_TEST 0x4000 /* Built-in testing functions */
#define SQLITE_FUNC_OFFSET 0x8000 /* Built-in sqlite_offset() function */
#define SQLITE_FUNC_WINDOW 0x00010000 /* Built-in window-only function */
#define SQLITE_FUNC_INTERNAL 0x00040000 /* For use by NestedParse() only */
#define SQLITE_FUNC_DIRECT 0x00080000 /* Not for use in TRIGGERs or VIEWs */
#define SQLITE_FUNC_SUBTYPE 0x00100000 /* Result likely to have sub-type */
#define SQLITE_FUNC_INLINE 0x00200000 /* Functions implemented in-line */
/* Identifier numbers for each in-line function */
#define INLINEFUNC_unlikely 0 /* unlikely(EXPR) and friends */
#define INLINEFUNC_coalesce 1 /* coalesce(EXPR,...) */
#define INLINEFUNC_affinity 2 /* affinity(EXPR) */
/*
** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
@@ -1737,6 +1743,18 @@ struct FuncDestructor {
** Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and
** adds the SQLITE_DIRECTONLY flag.
**
** INLINE_FUNC(zName, nArg, iFuncId, mFlags)
** zName is the name of a function that is implemented by in-line
** byte code rather than by the usual callbacks. The iFuncId
** parameter determines the function id. The mFlags parameter is
** optional SQLITE_FUNC_ flags for this function.
**
** TEST_FUNC(zName, nArg, iFuncId, mFlags)
** zName is the name of a test-only function implemented by in-line
** byte code rather than by the usual callbacks. The iFuncId
** parameter determines the function id. The mFlags parameter is
** optional SQLITE_FUNC_ flags for this function.
**
** DFUNCTION(zName, nArg, iArg, bNC, xFunc)
** Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and
** adds the SQLITE_FUNC_SLOCHNG flag. Used for date & time functions
@@ -1779,6 +1797,13 @@ struct FuncDestructor {
#define SFUNCTION(zName, nArg, iArg, bNC, xFunc) \
{nArg, SQLITE_UTF8|SQLITE_DIRECTONLY, \
SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} }
#define INLINE_FUNC(zName, nArg, iArg, mFlags) \
{nArg, SQLITE_UTF8|SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \
SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} }
#define TEST_FUNC(zName, nArg, iArg, mFlags) \
{nArg, SQLITE_UTF8|SQLITE_FUNC_INTERNAL|SQLITE_FUNC_TEST| \
SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \
SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} }
#define DFUNCTION(zName, nArg, iArg, bNC, xFunc) \
{nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8, \
0, 0, xFunc, 0, 0, 0, #zName, {0} }