forks/go-ethereum
1
0
Fork 1
mirror of https://github.com/ethereum/go-ethereum.git synced 2026-08-19 10:22:23 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

drop wrong and not-required bound check

Browse source
This commit is contained in:
lmittmann 2024-08-06 14:44:44 +02:00
parent 0ddfe7a9d1
commit 0265e9b6c0
1 changed files with 5 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
core/vm/memory.go
View file

@ -71,11 +71,9 @@ func (m *Memory) GetCopy(offset, size uint64) (cpy []byte) {
return nil return nil
} }
if uint64(len(m.store)) > offset { // memory is always resized before being accessed, no need to check bounds
cpy = make([]byte, size) cpy = make([]byte, size)
copy(cpy, m.store[offset:offset+size]) copy(cpy, m.store[offset:offset+size])
}
return return
} }
@ -85,13 +83,10 @@ func (m *Memory) GetPtr(offset, size uint64) []byte {
return nil return nil
} }
if uint64(len(m.store)) > offset { // memory is always resized before being accessed, no need to check bounds
return m.store[offset : offset+size] return m.store[offset : offset+size]
} }
return nil
}
// Len returns the length of the backing slice // Len returns the length of the backing slice
func (m *Memory) Len() int { func (m *Memory) Len() int {
return len(m.store) return len(m.store)