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Removing unecessary casts

This commit is contained in:
Tomusdrw 2016-01-14 00:46:24 +01:00
parent c357631bbb
commit f38c99b285
1 changed files with 3 additions and 8 deletions
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11
src/evm/interpreter.rs
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@ -100,12 +100,7 @@ impl Memory for Vec<u8> {
fn read(&self, offset: U256) -> U256 { fn read(&self, offset: U256) -> U256 {
let off = offset.low_u64() as usize; let off = offset.low_u64() as usize;
let mut val = U256::zero(); U256::from(&self[off..off+32])
for pos in off..off+32 {
val = val << 8;
val = val | U256::from(self[pos] as u8);
}
val
} }
fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut [u8] { fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut [u8] {
@ -130,7 +125,7 @@ impl Memory for Vec<u8> {
let end = off + 32; let end = off + 32;
for pos in off..end { for pos in off..end {
self[end - pos - 1] = (val & U256::from(0xff)).low_u64() as u8; self[end - pos - 1] = val.low_u64() as u8;
val = val >> 8; val = val >> 8;
} }
} }
@ -138,7 +133,7 @@ impl Memory for Vec<u8> {
fn write_byte(&mut self, offset: U256, value: U256) { fn write_byte(&mut self, offset: U256, value: U256) {
let off = offset.low_u64() as usize; let off = offset.low_u64() as usize;
let val = value.low_u64() as u64; let val = value.low_u64() as u64;
self[off] = (val & 0xff) as u8; self[off] = val as u8;
} }
fn resize(&mut self, new_size: usize) { fn resize(&mut self, new_size: usize) {