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Convert the NameContext object from using u8 booleans to using individual

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bits in a single u8 as its booleans.  This change might become a basis for
a fix for [c2ad16f997ee9c].

FossilOrigin-Name: 722260969306778029b738402f22e3c154dd77a1
This commit is contained in:
drh
2012-05-21 19:11:25 +00:00
parent 3608f177ba
commit a51009b251
6 changed files with 43 additions and 34 deletions
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manifest
+12 -9
View File
@@ -1,5 +1,5 @@
C Make\ssure\slookaside\smemory\sallocations\sare\sunusable\safter\sthey\sare\sfreed.
D 2012-05-21T16:59:16.604
C Convert\sthe\sNameContext\sobject\sfrom\susing\su8\sbooleans\sto\susing\sindividual\nbits\sin\sa\ssingle\su8\sas\sits\sbooleans.\s\sThis\schange\smight\sbecome\sa\sbasis\sfor\na\sfix\sfor\s[c2ad16f997ee9c].
D 2012-05-21T19:11:25.681
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 2f37e468503dbe79d35c9f6dffcf3fae1ae9ec20
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -121,7 +121,7 @@ F src/btmutex.c 976f45a12e37293e32cae0281b15a21d48a8aaa7
F src/btree.c df800f10896bc2ddaa1125c532d6e7a7b9efc532
F src/btree.h 48a013f8964f12d944d90e4700df47b72dd6d923
F src/btreeInt.h 38a639c0542c29fe8331a221c4aed0cb8686249e
F src/build.c 95fd8aa1bf81acf15e9ef46b07d1f70111ea88d0
F src/build.c 2bb2163bb1e69f59e9f36a9413079ead42fa1d2c
F src/callback.c 0cb4228cdcd827dcc5def98fb099edcc9142dbcd
F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
F src/ctime.c a9c26822515f81ec21588cbb482ca6724be02e33
@@ -171,13 +171,13 @@ F src/pragma.c e708b3bb5704605816f617e0b1d63a5488060715
F src/prepare.c 9a00a9612ebf80203fbb41f8a29ab8cb27a05f40
F src/printf.c 7ffb4ebb8b341f67e049695ba031da717b3d2699
F src/random.c cd4a67b3953b88019f8cd4ccd81394a8ddfaba50
F src/resolve.c 748e75299faff345f34f0e5bd02a2bac8aa69fcd
F src/resolve.c b3c70ab28cac60de33684c9aa9e5138dcf71d6dd
F src/rowset.c f6a49f3e9579428024662f6e2931832511f831a1
F src/select.c d7b9018b7dd2e821183d69477ab55c39b8272335
F src/select.c c5c2d1b6cf3e9ec9727e4eeba7e0b448ec48a626
F src/shell.c c16f72e34f611f060546709564c121a67cb2b31b
F src/sqlite.h.in 4f4d4792f6fb00387c877af013cb09d955643f12
F src/sqlite3ext.h 6904f4aadf976f95241311fbffb00823075d9477
F src/sqliteInt.h c5e917c4f1453f3972b1fd0c81105dfe4f09cc32
F src/sqliteInt.h 59a27074efe1b68a375d4210b324cf78a91850b1
F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
F src/status.c 35939e7e03abf1b7577ce311f48f682c40de3208
F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
@@ -997,7 +997,10 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
F tool/warnings-clang.sh a8a0a3babda96dfb1ff51adda3cbbf3dfb7266c2
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
P fda1ea0bee0fe283e0ed5710058fdfc403519bac
R 6e4bfedf4c57499c35337d815d50cfb9
P 3869aef6348018f584137f36f6924193a790e52f
R d536666e711097bf22b04b86f6cd78bb
T *branch * nested-agg
T *sym-nested-agg *
T -sym-trunk *
U drh
Z bde27247c00eb88661bdbd820aaab779
Z 728d097c901f031eef175d490bde1189
manifest.uuid
+1 -1
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@@ -1 +1 @@
3869aef6348018f584137f36f6924193a790e52f
722260969306778029b738402f22e3c154dd77a1
src/build.c
+1 -1
View File
@@ -1507,7 +1507,7 @@ void sqlite3EndTable(
sSrc.a[0].iCursor = -1;
sNC.pParse = pParse;
sNC.pSrcList = &sSrc;
sNC.isCheck = 1;
sNC.ncFlags = NC_IsCheck;
pList = p->pCheck;
for(i=0; i<pList->nExpr; i++){
if( sqlite3ResolveExprNames(&sNC, pList->a[i].pExpr) ){
src/resolve.c
+18 -18
View File
@@ -311,7 +311,7 @@ static int lookupName(
assert( pExpr->x.pList==0 );
assert( pExpr->x.pSelect==0 );
pOrig = pEList->a[j].pExpr;
if( !pNC->allowAgg && ExprHasProperty(pOrig, EP_Agg) ){
if( (pNC->ncFlags&NC_AllowAgg)==0 && ExprHasProperty(pOrig, EP_Agg) ){
sqlite3ErrorMsg(pParse, "misuse of aliased aggregate %s", zAs);
return WRC_Abort;
}
@@ -556,7 +556,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}
}
#endif
if( is_agg && !pNC->allowAgg ){
if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){
sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId);
pNC->nErr++;
is_agg = 0;
@@ -570,11 +570,11 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}
if( is_agg ){
pExpr->op = TK_AGG_FUNCTION;
pNC->hasAgg = 1;
pNC->ncFlags |= NC_HasAgg;
}
if( is_agg ) pNC->allowAgg = 0;
if( is_agg ) pNC->ncFlags &= ~NC_AllowAgg;
sqlite3WalkExprList(pWalker, pList);
if( is_agg ) pNC->allowAgg = 1;
if( is_agg ) pNC->ncFlags |= NC_AllowAgg;
/* FIX ME: Compute pExpr->affinity based on the expected return
** type of the function
*/
@@ -589,7 +589,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
if( ExprHasProperty(pExpr, EP_xIsSelect) ){
int nRef = pNC->nRef;
#ifndef SQLITE_OMIT_CHECK
if( pNC->isCheck ){
if( (pNC->ncFlags & NC_IsCheck)!=0 ){
sqlite3ErrorMsg(pParse,"subqueries prohibited in CHECK constraints");
}
#endif
@@ -603,7 +603,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}
#ifndef SQLITE_OMIT_CHECK
case TK_VARIABLE: {
if( pNC->isCheck ){
if( (pNC->ncFlags & NC_IsCheck)!=0 ){
sqlite3ErrorMsg(pParse,"parameters prohibited in CHECK constraints");
}
break;
@@ -685,7 +685,7 @@ static int resolveOrderByTermToExprList(
nc.pParse = pParse;
nc.pSrcList = pSelect->pSrc;
nc.pEList = pEList;
nc.allowAgg = 1;
nc.ncFlags = NC_AllowAgg;
nc.nErr = 0;
db = pParse->db;
savedSuppErr = db->suppressErr;
@@ -987,7 +987,7 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
/* Set up the local name-context to pass to sqlite3ResolveExprNames() to
** resolve the result-set expression list.
*/
sNC.allowAgg = 1;
sNC.ncFlags = NC_AllowAgg;
sNC.pSrcList = p->pSrc;
sNC.pNext = pOuterNC;
@@ -1033,10 +1033,10 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
*/
assert( (p->selFlags & SF_Aggregate)==0 );
pGroupBy = p->pGroupBy;
if( pGroupBy || sNC.hasAgg ){
if( pGroupBy || (sNC.ncFlags & NC_HasAgg)!=0 ){
p->selFlags |= SF_Aggregate;
}else{
sNC.allowAgg = 0;
sNC.ncFlags &= ~NC_AllowAgg;
}
/* If a HAVING clause is present, then there must be a GROUP BY clause.
@@ -1065,7 +1065,7 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
** outer queries
*/
sNC.pNext = 0;
sNC.allowAgg = 1;
sNC.ncFlags |= NC_AllowAgg;
/* Process the ORDER BY clause for singleton SELECT statements.
** The ORDER BY clause for compounds SELECT statements is handled
@@ -1153,7 +1153,7 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
**
** Function calls are checked to make sure that the function is
** defined and that the correct number of arguments are specified.
** If the function is an aggregate function, then the pNC->hasAgg is
** If the function is an aggregate function, then the NC_HasAgg flag is
** set and the opcode is changed from TK_FUNCTION to TK_AGG_FUNCTION.
** If an expression contains aggregate functions then the EP_Agg
** property on the expression is set.
@@ -1165,7 +1165,7 @@ int sqlite3ResolveExprNames(
NameContext *pNC, /* Namespace to resolve expressions in. */
Expr *pExpr /* The expression to be analyzed. */
){
int savedHasAgg;
u8 savedHasAgg;
Walker w;
if( pExpr==0 ) return 0;
@@ -1178,8 +1178,8 @@ int sqlite3ResolveExprNames(
pParse->nHeight += pExpr->nHeight;
}
#endif
savedHasAgg = pNC->hasAgg;
pNC->hasAgg = 0;
savedHasAgg = pNC->ncFlags & NC_HasAgg;
pNC->ncFlags &= ~NC_HasAgg;
w.xExprCallback = resolveExprStep;
w.xSelectCallback = resolveSelectStep;
w.pParse = pNC->pParse;
@@ -1191,10 +1191,10 @@ int sqlite3ResolveExprNames(
if( pNC->nErr>0 || w.pParse->nErr>0 ){
ExprSetProperty(pExpr, EP_Error);
}
if( pNC->hasAgg ){
if( pNC->ncFlags & NC_HasAgg ){
ExprSetProperty(pExpr, EP_Agg);
}else if( savedHasAgg ){
pNC->hasAgg = 1;
pNC->ncFlags |= NC_HasAgg;
}
return ExprHasProperty(pExpr, EP_Error);
}
src/select.c
+1
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@@ -3149,6 +3149,7 @@ static Table *isSimpleCount(Select *p, AggInfo *pAggInfo){
if( IsVirtual(pTab) ) return 0;
if( pExpr->op!=TK_AGG_FUNCTION ) return 0;
if( pAggInfo->nFunc==0 ) return 0;
if( (pAggInfo->aFunc[0].pFunc->flags&SQLITE_FUNC_COUNT)==0 ) return 0;
if( pExpr->flags&EP_Distinct ) return 0;
src/sqliteInt.h
+10 -5
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@@ -2006,15 +2006,20 @@ struct NameContext {
Parse *pParse; /* The parser */
SrcList *pSrcList; /* One or more tables used to resolve names */
ExprList *pEList; /* Optional list of named expressions */
int nRef; /* Number of names resolved by this context */
int nErr; /* Number of errors encountered while resolving names */
u8 allowAgg; /* Aggregate functions allowed here */
u8 hasAgg; /* True if aggregates are seen */
u8 isCheck; /* True if resolving names in a CHECK constraint */
AggInfo *pAggInfo; /* Information about aggregates at this level */
NameContext *pNext; /* Next outer name context. NULL for outermost */
int nRef; /* Number of names resolved by this context */
int nErr; /* Number of errors encountered while resolving names */
u8 ncFlags; /* Zero or more NC_* flags defined below */
};
/*
** Allowed values for the NameContext, ncFlags field.
*/
#define NC_AllowAgg 0x01 /* Aggregate functions are allowed here */
#define NC_HasAgg 0x02 /* One or more aggregate functions seen */
#define NC_IsCheck 0x04 /* True if resolving names in a CHECK constraint */
/*
** An instance of the following structure contains all information
** needed to generate code for a single SELECT statement.