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Overview
| Comment: | More compaction of expr.c. (CVS 1184) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
92e7f78057c4e8f6214b6e0a2d80c3ff |
| User & Date: | drh 2004-01-16 16:42:54 |
Context
|
2004-01-16
| ||
| 19:11 | See ticket #569; eliminates warnings for Cygwin v1.5 and above. (CVS 1185) check-in: a0f8b1f3 user: dougcurrie tags: trunk | |
| 16:42 | More compaction of expr.c. (CVS 1184) check-in: 92e7f780 user: drh tags: trunk | |
| 15:55 | Incremental code compaction in expr.c. Now about 4% smaller. Lots more work to do. (CVS 1183) check-in: d292ba51 user: drh tags: trunk | |
Changes
Changes to src/expr.c.
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** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.105 2004/01/16 15:55:38 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** Construct a new expression node and return a pointer to it. Memory ** for this node is obtained from sqliteMalloc(). The calling function ................................................................................ /* ** Add a new element to the end of an expression list. If pList is ** initially NULL, then create a new expression list. */ ExprList *sqliteExprListAppend(ExprList *pList, Expr *pExpr, Token *pName){ int i; if( pList==0 ){ pList = sqliteMalloc( sizeof(ExprList) ); if( pList==0 ){ /* sqliteExprDelete(pExpr); // Leak memory if malloc fails */ return 0; } assert( pList->nAlloc==0 ); ................................................................................ }else if( pExpr->iColumn>=0 ){ sqliteVdbeAddOp(v, OP_Column, pExpr->iTable, pExpr->iColumn); }else{ sqliteVdbeAddOp(v, OP_Recno, pExpr->iTable, 0); } break; } case TK_INTEGER: { if( !sqliteFitsIn32Bits(pExpr->token.z) ){ sqliteVdbeAddOp(v, OP_String, 0, 0); }else{ sqliteVdbeAddOp(v, OP_Integer, atoi(pExpr->token.z), 0); } sqliteVdbeChangeP3(v, -1, pExpr->token.z, pExpr->token.n); break; } case TK_FLOAT: { sqliteVdbeAddOp(v, OP_String, 0, 0); assert( pExpr->token.z ); sqliteVdbeChangeP3(v, -1, pExpr->token.z, pExpr->token.n); break; } case TK_STRING: { int addr = sqliteVdbeAddOp(v, OP_String, 0, 0); assert( pExpr->token.z ); sqliteVdbeChangeP3(v, addr, pExpr->token.z, pExpr->token.n); sqliteVdbeDequoteP3(v, addr); break; } case TK_NULL: { sqliteVdbeAddOp(v, OP_String, 0, 0); break; } case TK_VARIABLE: { ................................................................................ sqliteVdbeAddOp(v, op, 0, 0); break; } case TK_CONCAT: { sqliteExprCode(pParse, pExpr->pLeft); sqliteExprCode(pParse, pExpr->pRight); sqliteVdbeAddOp(v, OP_Concat, 2, 0); break; } case TK_UPLUS: { Expr *pLeft = pExpr->pLeft; if( pLeft && pLeft->op==TK_INTEGER ){ if( sqliteFitsIn32Bits(pLeft->token.z) ){ sqliteVdbeAddOp(v, OP_Integer, atoi(pLeft->token.z), 0); }else{ sqliteVdbeAddOp(v, OP_String, 0, 0); } sqliteVdbeChangeP3(v, -1, pLeft->token.z, pLeft->token.n); }else if( pLeft && pLeft->op==TK_FLOAT ){ sqliteVdbeAddOp(v, OP_String, 0, 0); sqliteVdbeChangeP3(v, -1, pLeft->token.z, pLeft->token.n); }else{ sqliteExprCode(pParse, pExpr->pLeft); } break; } case TK_UMINUS: { assert( pExpr->pLeft ); if( pExpr->pLeft->op==TK_FLOAT || pExpr->pLeft->op==TK_INTEGER ){ Token *p = &pExpr->pLeft->token; char *z = sqliteMalloc( p->n + 2 ); ................................................................................ sqliteVdbeAddOp(v, OP_Ge, 0, 0); sqliteVdbeAddOp(v, OP_Pull, 1, 0); sqliteExprCode(pParse, pExpr->pList->a[1].pExpr); sqliteVdbeAddOp(v, OP_Le, 0, 0); sqliteVdbeAddOp(v, OP_And, 0, 0); break; } case TK_AS: { sqliteExprCode(pParse, pExpr->pLeft); break; } case TK_CASE: { int expr_end_label; int jumpInst; |
| < > > | | < < < < < < | < < < | < < | | < < < < < < < < < < < < < < < < < > |
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ... 238 239 240 241 242 243 244 245 246 247 248 249 250 251 .... 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 .... 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 .... 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 |
** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.106 2004/01/16 16:42:54 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** Construct a new expression node and return a pointer to it. Memory ** for this node is obtained from sqliteMalloc(). The calling function ................................................................................ /* ** Add a new element to the end of an expression list. If pList is ** initially NULL, then create a new expression list. */ ExprList *sqliteExprListAppend(ExprList *pList, Expr *pExpr, Token *pName){ if( pList==0 ){ pList = sqliteMalloc( sizeof(ExprList) ); if( pList==0 ){ /* sqliteExprDelete(pExpr); // Leak memory if malloc fails */ return 0; } assert( pList->nAlloc==0 ); ................................................................................ }else if( pExpr->iColumn>=0 ){ sqliteVdbeAddOp(v, OP_Column, pExpr->iTable, pExpr->iColumn); }else{ sqliteVdbeAddOp(v, OP_Recno, pExpr->iTable, 0); } break; } case TK_STRING: case TK_FLOAT: case TK_INTEGER: { if( pExpr->op==TK_INTEGER && sqliteFitsIn32Bits(pExpr->token.z) ){ sqliteVdbeAddOp(v, OP_Integer, atoi(pExpr->token.z), 0); }else{ sqliteVdbeAddOp(v, OP_String, 0, 0); } assert( pExpr->token.z ); sqliteVdbeChangeP3(v, -1, pExpr->token.z, pExpr->token.n); sqliteVdbeDequoteP3(v, -1); break; } case TK_NULL: { sqliteVdbeAddOp(v, OP_String, 0, 0); break; } case TK_VARIABLE: { ................................................................................ sqliteVdbeAddOp(v, op, 0, 0); break; } case TK_CONCAT: { sqliteExprCode(pParse, pExpr->pLeft); sqliteExprCode(pParse, pExpr->pRight); sqliteVdbeAddOp(v, OP_Concat, 2, 0); break; } case TK_UMINUS: { assert( pExpr->pLeft ); if( pExpr->pLeft->op==TK_FLOAT || pExpr->pLeft->op==TK_INTEGER ){ Token *p = &pExpr->pLeft->token; char *z = sqliteMalloc( p->n + 2 ); ................................................................................ sqliteVdbeAddOp(v, OP_Ge, 0, 0); sqliteVdbeAddOp(v, OP_Pull, 1, 0); sqliteExprCode(pParse, pExpr->pList->a[1].pExpr); sqliteVdbeAddOp(v, OP_Le, 0, 0); sqliteVdbeAddOp(v, OP_And, 0, 0); break; } case TK_UPLUS: case TK_AS: { sqliteExprCode(pParse, pExpr->pLeft); break; } case TK_CASE: { int expr_end_label; int jumpInst; |
Changes to src/vdbeaux.c.
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 |
** The quoting operator can be either a grave ascent (ASCII 0x27)
** or a double quote character (ASCII 0x22). Two quotes in a row
** resolve to be a single actual quote character within the string.
*/
void sqliteVdbeDequoteP3(Vdbe *p, int addr){
Op *pOp;
assert( p->magic==VDBE_MAGIC_INIT );
if( p->aOp==0 || addr<0 || addr>=p->nOp ) return;
pOp = &p->aOp[addr];
if( pOp->p3==0 || pOp->p3[0]==0 ) return;
if( pOp->p3type==P3_POINTER ) return;
if( pOp->p3type!=P3_DYNAMIC ){
pOp->p3 = sqliteStrDup(pOp->p3);
pOp->p3type = P3_DYNAMIC;
}
|
> | > > > |
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 |
** The quoting operator can be either a grave ascent (ASCII 0x27)
** or a double quote character (ASCII 0x22). Two quotes in a row
** resolve to be a single actual quote character within the string.
*/
void sqliteVdbeDequoteP3(Vdbe *p, int addr){
Op *pOp;
assert( p->magic==VDBE_MAGIC_INIT );
if( p->aOp==0 ) return;
if( addr<0 || addr>=p->nOp ){
addr = p->nOp - 1;
if( addr<0 ) return;
}
pOp = &p->aOp[addr];
if( pOp->p3==0 || pOp->p3[0]==0 ) return;
if( pOp->p3type==P3_POINTER ) return;
if( pOp->p3type!=P3_DYNAMIC ){
pOp->p3 = sqliteStrDup(pOp->p3);
pOp->p3type = P3_DYNAMIC;
}
|