TrueCloudLab/neo-go
8
0
Fork 0
mirror of https://github.com/nspcc-dev/neo-go.git synced 2024-12-23 03:41:34 +00:00
Code Issues Projects Releases Packages Wiki Activity

vm: do not copy parameter

Browse source 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgeniy Stratonikov 2021-08-10 15:31:16 +03:00
parent a5516e8c96
commit f5d1277bfd
1 changed files with 4 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
pkg/vm/context.go
View file

@ -97,9 +97,9 @@ func (c *Context) NextIP() int {
return c.nextip
}
// Next returns the next instruction to execute with its parameter if any. After
// its invocation the instruction pointer points to the instruction being
// returned.
// Next returns the next instruction to execute with its parameter if any.
// The parameter is not copied and shouldn't be written to. After its invocation
// the instruction pointer points to the instruction being returned.
func (c *Context) Next() (opcode.Opcode, []byte, error) {
var err error
@ -171,8 +171,7 @@ func (c *Context) Next() (opcode.Opcode, []byte, error) {
if err != nil {
return instr, nil, err
}
parameter := make([]byte, numtoread)
copy(parameter, c.prog[c.nextip:c.nextip+numtoread])
parameter := c.prog[c.nextip : c.nextip+numtoread]
c.nextip += numtoread
return instr, parameter, nil
}