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https://github.com/jart/cosmopolitan.git
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Get SQLite to build
* changed headers * removed redundant declarations * ran clang-format * added sqlite3.mk
This commit is contained in:
ahgamut
Justine Tunney
parent
644f290035
commit
919b6fec10
156 changed files with 2847 additions and 6772 deletions
138
third_party/sqlite3/walker.c
vendored
138
third_party/sqlite3/walker.c
vendored
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@ -12,36 +12,35 @@
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** This file contains routines used for walking the parser tree for
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** an SQL statement.
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*/
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#include "sqliteInt.h"
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#include <stdlib.h>
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#include <string.h>
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#include "libc/mem/mem.h"
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#include "libc/str/str.h"
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#include "third_party/sqlite3/sqliteInt.h"
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#if !defined(SQLITE_OMIT_WINDOWFUNC)
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/*
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** Walk all expressions linked into the list of Window objects passed
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** as the second argument.
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*/
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static int walkWindowList(Walker *pWalker, Window *pList, int bOneOnly){
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static int walkWindowList(Walker *pWalker, Window *pList, int bOneOnly) {
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Window *pWin;
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for(pWin=pList; pWin; pWin=pWin->pNextWin){
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for (pWin = pList; pWin; pWin = pWin->pNextWin) {
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int rc;
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rc = sqlite3WalkExprList(pWalker, pWin->pOrderBy);
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if( rc ) return WRC_Abort;
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if (rc) return WRC_Abort;
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rc = sqlite3WalkExprList(pWalker, pWin->pPartition);
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if( rc ) return WRC_Abort;
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if (rc) return WRC_Abort;
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rc = sqlite3WalkExpr(pWalker, pWin->pFilter);
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if( rc ) return WRC_Abort;
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if (rc) return WRC_Abort;
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/* The next two are purely for calls to sqlite3RenameExprUnmap()
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** within sqlite3WindowOffsetExpr(). Because of constraints imposed
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** by sqlite3WindowOffsetExpr(), they can never fail. The results do
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** not matter anyhow. */
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rc = sqlite3WalkExpr(pWalker, pWin->pStart);
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if( NEVER(rc) ) return WRC_Abort;
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if (NEVER(rc)) return WRC_Abort;
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rc = sqlite3WalkExpr(pWalker, pWin->pEnd);
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if( NEVER(rc) ) return WRC_Abort;
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if( bOneOnly ) break;
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if (NEVER(rc)) return WRC_Abort;
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if (bOneOnly) break;
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}
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return WRC_Continue;
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}
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@ -66,30 +65,30 @@ static int walkWindowList(Walker *pWalker, Window *pList, int bOneOnly){
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** The return value from this routine is WRC_Abort to abandon the tree walk
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** and WRC_Continue to continue.
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*/
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static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){
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static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr) {
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int rc;
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testcase( ExprHasProperty(pExpr, EP_TokenOnly) );
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testcase( ExprHasProperty(pExpr, EP_Reduced) );
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while(1){
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testcase(ExprHasProperty(pExpr, EP_TokenOnly));
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testcase(ExprHasProperty(pExpr, EP_Reduced));
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while (1) {
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rc = pWalker->xExprCallback(pWalker, pExpr);
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if( rc ) return rc & WRC_Abort;
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if( !ExprHasProperty(pExpr,(EP_TokenOnly|EP_Leaf)) ){
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assert( pExpr->x.pList==0 || pExpr->pRight==0 );
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if( pExpr->pLeft && walkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort;
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if( pExpr->pRight ){
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assert( !ExprHasProperty(pExpr, EP_WinFunc) );
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if (rc) return rc & WRC_Abort;
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if (!ExprHasProperty(pExpr, (EP_TokenOnly | EP_Leaf))) {
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assert(pExpr->x.pList == 0 || pExpr->pRight == 0);
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if (pExpr->pLeft && walkExpr(pWalker, pExpr->pLeft)) return WRC_Abort;
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if (pExpr->pRight) {
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assert(!ExprHasProperty(pExpr, EP_WinFunc));
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pExpr = pExpr->pRight;
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continue;
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}else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
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assert( !ExprHasProperty(pExpr, EP_WinFunc) );
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if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
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}else{
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if( pExpr->x.pList ){
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if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
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} else if (ExprHasProperty(pExpr, EP_xIsSelect)) {
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assert(!ExprHasProperty(pExpr, EP_WinFunc));
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if (sqlite3WalkSelect(pWalker, pExpr->x.pSelect)) return WRC_Abort;
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} else {
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if (pExpr->x.pList) {
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if (sqlite3WalkExprList(pWalker, pExpr->x.pList)) return WRC_Abort;
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}
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#ifndef SQLITE_OMIT_WINDOWFUNC
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if( ExprHasProperty(pExpr, EP_WinFunc) ){
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if( walkWindowList(pWalker, pExpr->y.pWin, 1) ) return WRC_Abort;
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if (ExprHasProperty(pExpr, EP_WinFunc)) {
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if (walkWindowList(pWalker, pExpr->y.pWin, 1)) return WRC_Abort;
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}
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#endif
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}
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@ -98,20 +97,20 @@ static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){
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}
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return WRC_Continue;
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}
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int sqlite3WalkExpr(Walker *pWalker, Expr *pExpr){
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return pExpr ? walkExpr(pWalker,pExpr) : WRC_Continue;
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int sqlite3WalkExpr(Walker *pWalker, Expr *pExpr) {
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return pExpr ? walkExpr(pWalker, pExpr) : WRC_Continue;
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}
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/*
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** Call sqlite3WalkExpr() for every expression in list p or until
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** an abort request is seen.
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*/
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int sqlite3WalkExprList(Walker *pWalker, ExprList *p){
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int sqlite3WalkExprList(Walker *pWalker, ExprList *p) {
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int i;
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struct ExprList_item *pItem;
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if( p ){
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for(i=p->nExpr, pItem=p->a; i>0; i--, pItem++){
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if( sqlite3WalkExpr(pWalker, pItem->pExpr) ) return WRC_Abort;
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if (p) {
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for (i = p->nExpr, pItem = p->a; i > 0; i--, pItem++) {
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if (sqlite3WalkExpr(pWalker, pItem->pExpr)) return WRC_Abort;
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}
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}
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return WRC_Continue;
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@ -123,17 +122,17 @@ int sqlite3WalkExprList(Walker *pWalker, ExprList *p){
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** any expr callbacks and SELECT callbacks that come from subqueries.
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** Return WRC_Abort or WRC_Continue.
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*/
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int sqlite3WalkSelectExpr(Walker *pWalker, Select *p){
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if( sqlite3WalkExprList(pWalker, p->pEList) ) return WRC_Abort;
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if( sqlite3WalkExpr(pWalker, p->pWhere) ) return WRC_Abort;
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if( sqlite3WalkExprList(pWalker, p->pGroupBy) ) return WRC_Abort;
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if( sqlite3WalkExpr(pWalker, p->pHaving) ) return WRC_Abort;
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if( sqlite3WalkExprList(pWalker, p->pOrderBy) ) return WRC_Abort;
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if( sqlite3WalkExpr(pWalker, p->pLimit) ) return WRC_Abort;
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int sqlite3WalkSelectExpr(Walker *pWalker, Select *p) {
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if (sqlite3WalkExprList(pWalker, p->pEList)) return WRC_Abort;
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if (sqlite3WalkExpr(pWalker, p->pWhere)) return WRC_Abort;
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if (sqlite3WalkExprList(pWalker, p->pGroupBy)) return WRC_Abort;
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if (sqlite3WalkExpr(pWalker, p->pHaving)) return WRC_Abort;
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if (sqlite3WalkExprList(pWalker, p->pOrderBy)) return WRC_Abort;
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if (sqlite3WalkExpr(pWalker, p->pLimit)) return WRC_Abort;
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#if !defined(SQLITE_OMIT_WINDOWFUNC) && !defined(SQLITE_OMIT_ALTERTABLE)
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{
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Parse *pParse = pWalker->pParse;
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if( pParse && IN_RENAME_OBJECT ){
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if (pParse && IN_RENAME_OBJECT) {
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/* The following may return WRC_Abort if there are unresolvable
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** symbols (e.g. a table that does not exist) in a window definition. */
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int rc = walkWindowList(pWalker, p->pWinDefn, 0);
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@ -148,34 +147,33 @@ int sqlite3WalkSelectExpr(Walker *pWalker, Select *p){
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** Walk the parse trees associated with all subqueries in the
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** FROM clause of SELECT statement p. Do not invoke the select
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** callback on p, but do invoke it on each FROM clause subquery
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** and on any subqueries further down in the tree. Return
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** and on any subqueries further down in the tree. Return
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** WRC_Abort or WRC_Continue;
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*/
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int sqlite3WalkSelectFrom(Walker *pWalker, Select *p){
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int sqlite3WalkSelectFrom(Walker *pWalker, Select *p) {
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SrcList *pSrc;
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int i;
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SrcItem *pItem;
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pSrc = p->pSrc;
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if( pSrc ){
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for(i=pSrc->nSrc, pItem=pSrc->a; i>0; i--, pItem++){
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if( pItem->pSelect && sqlite3WalkSelect(pWalker, pItem->pSelect) ){
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if (pSrc) {
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for (i = pSrc->nSrc, pItem = pSrc->a; i > 0; i--, pItem++) {
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if (pItem->pSelect && sqlite3WalkSelect(pWalker, pItem->pSelect)) {
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return WRC_Abort;
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}
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if( pItem->fg.isTabFunc
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&& sqlite3WalkExprList(pWalker, pItem->u1.pFuncArg)
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){
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if (pItem->fg.isTabFunc &&
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sqlite3WalkExprList(pWalker, pItem->u1.pFuncArg)) {
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return WRC_Abort;
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}
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}
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}
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return WRC_Continue;
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}
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}
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/*
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** Call sqlite3WalkExpr() for every expression in Select statement p.
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** Invoke sqlite3WalkSelect() for subqueries in the FROM clause and
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** on the compound select chain, p->pPrior.
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** on the compound select chain, p->pPrior.
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**
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** If it is not NULL, the xSelectCallback() callback is invoked before
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** the walk of the expressions and FROM clause. The xSelectCallback2()
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@ -189,50 +187,48 @@ int sqlite3WalkSelectFrom(Walker *pWalker, Select *p){
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** If the Walker does not have an xSelectCallback() then this routine
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** is a no-op returning WRC_Continue.
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*/
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int sqlite3WalkSelect(Walker *pWalker, Select *p){
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int sqlite3WalkSelect(Walker *pWalker, Select *p) {
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int rc;
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if( p==0 ) return WRC_Continue;
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if( pWalker->xSelectCallback==0 ) return WRC_Continue;
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do{
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if (p == 0) return WRC_Continue;
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if (pWalker->xSelectCallback == 0) return WRC_Continue;
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do {
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rc = pWalker->xSelectCallback(pWalker, p);
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if( rc ) return rc & WRC_Abort;
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if( sqlite3WalkSelectExpr(pWalker, p)
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|| sqlite3WalkSelectFrom(pWalker, p)
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){
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if (rc) return rc & WRC_Abort;
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if (sqlite3WalkSelectExpr(pWalker, p) ||
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sqlite3WalkSelectFrom(pWalker, p)) {
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return WRC_Abort;
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}
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if( pWalker->xSelectCallback2 ){
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if (pWalker->xSelectCallback2) {
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pWalker->xSelectCallback2(pWalker, p);
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}
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p = p->pPrior;
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}while( p!=0 );
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} while (p != 0);
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return WRC_Continue;
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}
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/* Increase the walkerDepth when entering a subquery, and
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** descrease when leaving the subquery.
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*/
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int sqlite3WalkerDepthIncrease(Walker *pWalker, Select *pSelect){
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int sqlite3WalkerDepthIncrease(Walker *pWalker, Select *pSelect) {
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UNUSED_PARAMETER(pSelect);
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pWalker->walkerDepth++;
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return WRC_Continue;
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}
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void sqlite3WalkerDepthDecrease(Walker *pWalker, Select *pSelect){
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void sqlite3WalkerDepthDecrease(Walker *pWalker, Select *pSelect) {
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UNUSED_PARAMETER(pSelect);
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pWalker->walkerDepth--;
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}
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/*
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** No-op routine for the parse-tree walker.
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**
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** When this routine is the Walker.xExprCallback then expression trees
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** are walked without any actions being taken at each node. Presumably,
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** when this routine is used for Walker.xExprCallback then
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** Walker.xSelectCallback is set to do something useful for every
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** when this routine is used for Walker.xExprCallback then
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** Walker.xSelectCallback is set to do something useful for every
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** subquery in the parser tree.
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*/
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int sqlite3ExprWalkNoop(Walker *NotUsed, Expr *NotUsed2){
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int sqlite3ExprWalkNoop(Walker *NotUsed, Expr *NotUsed2) {
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UNUSED_PARAMETER2(NotUsed, NotUsed2);
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return WRC_Continue;
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}
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@ -241,7 +237,7 @@ int sqlite3ExprWalkNoop(Walker *NotUsed, Expr *NotUsed2){
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** No-op routine for the parse-tree walker for SELECT statements.
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** subquery in the parser tree.
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*/
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int sqlite3SelectWalkNoop(Walker *NotUsed, Select *NotUsed2){
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int sqlite3SelectWalkNoop(Walker *NotUsed, Select *NotUsed2) {
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UNUSED_PARAMETER2(NotUsed, NotUsed2);
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return WRC_Continue;
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}
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