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Add and use the sqlite3VdbeChangeOpcode() routine. Simplify the implementation

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of the other sqlite3VdbeChange*() routines.

FossilOrigin-Name: 0a5b00e493efae58252f9fc7bde5a469645942d5
This commit is contained in:
drh
2015-09-02 18:40:33 +00:00
parent 2991ba050b
commit 0ff287fb01
6 changed files with 25 additions and 50 deletions
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48
src/vdbeaux.c
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@@ -664,49 +664,23 @@ void sqlite3VdbeScanStatus(
/*
** Change the value of the P1 operand for a specific instruction.
** This routine is useful when a large program is loaded from a
** static array using sqlite3VdbeAddOpList but we want to make a
** few minor changes to the program.
** Change the value of the opcode, or P1, P2, P3, or P5 operands
** for a specific instruction.
*/
void sqlite3VdbeChangeOpcode(Vdbe *p, u32 addr, u8 iNewOpcode){
sqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode;
}
void sqlite3VdbeChangeP1(Vdbe *p, u32 addr, int val){
assert( p!=0 );
if( ((u32)p->nOp)>addr ){
p->aOp[addr].p1 = val;
}
sqlite3VdbeGetOp(p,addr)->p1 = val;
}
/*
** Change the value of the P2 operand for a specific instruction.
** This routine is useful for setting a jump destination.
*/
void sqlite3VdbeChangeP2(Vdbe *p, u32 addr, int val){
assert( p!=0 );
if( ((u32)p->nOp)>addr ){
p->aOp[addr].p2 = val;
}
sqlite3VdbeGetOp(p,addr)->p2 = val;
}
/*
** Change the value of the P3 operand for a specific instruction.
*/
void sqlite3VdbeChangeP3(Vdbe *p, u32 addr, int val){
assert( p!=0 );
if( ((u32)p->nOp)>addr ){
p->aOp[addr].p3 = val;
}
sqlite3VdbeGetOp(p,addr)->p3 = val;
}
/*
** Change the value of the P5 operand for the most recently
** added operation.
*/
void sqlite3VdbeChangeP5(Vdbe *p, u8 val){
assert( p!=0 );
if( p->aOp ){
assert( p->nOp>0 );
p->aOp[p->nOp-1].p5 = val;
}
void sqlite3VdbeChangeP5(Vdbe *p, u8 p5){
sqlite3VdbeGetOp(p,-1)->p5 = p5;
}
/*
@@ -714,8 +688,8 @@ void sqlite3VdbeChangeP5(Vdbe *p, u8 val){
** the address of the next instruction to be coded.
*/
void sqlite3VdbeJumpHere(Vdbe *p, int addr){
sqlite3VdbeChangeP2(p, addr, p->nOp);
p->pParse->iFixedOp = p->nOp - 1;
sqlite3VdbeChangeP2(p, addr, p->nOp);
}