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vm: replace jumpIf with jump

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`jumpIf` is used only once with non-constant condition.
This commit is contained in:
Evgenii Stratonikov 2020-07-20 14:51:15 +03:00
parent a45c160f10
commit aec9111961
1 changed files with 8 additions and 8 deletions
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16
pkg/vm/vm.go
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@ -1221,7 +1221,9 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
cond = getJumpCondition(op, a, b)
}
v.jumpIf(ctx, offset, cond)
if cond {
v.jump(ctx, offset)
}
case opcode.CALL, opcode.CALLL:
v.checkInvocationStackSize()
@ -1231,7 +1233,7 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
v.istack.PushVal(newCtx)
offset := v.getJumpOffset(newCtx, parameter)
v.jumpIf(newCtx, offset, true)
v.jump(newCtx, offset)
case opcode.CALLA:
ptr := v.estack.Pop().Item().(*stackitem.Pointer)
@ -1243,7 +1245,7 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
newCtx.local = nil
newCtx.arguments = nil
v.istack.PushVal(newCtx)
v.jumpIf(newCtx, ptr.Position(), true)
v.jump(newCtx, ptr.Position())
case opcode.SYSCALL:
interopID := GetInteropID(parameter)
@ -1391,11 +1393,9 @@ func getJumpCondition(op opcode.Opcode, a, b *big.Int) bool {
}
}
// jumpIf performs jump to offset if cond is true.
func (v *VM) jumpIf(ctx *Context, offset int, cond bool) {
if cond {
ctx.nextip = offset
}
// jump performs jump to the offset.
func (v *VM) jump(ctx *Context, offset int) {
ctx.nextip = offset
}
// getJumpOffset returns instruction number in a current context