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make function arguments immutable by default

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This commit is contained in:
Alexander Medvednikov
2019-08-07 08:19:27 +02:00
parent 06b8bd9382
commit 34e0b164eb
22 changed files with 107 additions and 83 deletions
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31
vlib/crypto/sha512/sha512.v
View File

@@ -146,14 +146,15 @@ fn new384() *Digest {
return _new(crypto.Hash.SHA384)
}
fn (d mut Digest) write(p []byte) ?int {
fn (d mut Digest) write(p_ []byte) ?int {
mut p := p_
nn := p.len
d.len += u64(nn)
if d.nx > 0 {
n := copy(d.x.right(d.nx), p)
d.nx += n
if d.nx == Chunk {
block(d, d.x)
block(mut d, d.x)
d.nx = 0
}
if n >= p.len {
@@ -164,7 +165,7 @@ fn (d mut Digest) write(p []byte) ?int {
}
if p.len >= Chunk {
n := p.len &~ (Chunk - 1)
block(d, p.left(n))
block(mut d, p.left(n))
if n >= p.len {
p = []byte
} else {
@@ -217,8 +218,8 @@ fn (d mut Digest) checksum() []byte {
// Length in bits.
len <<= u64(3)
binary.big_endian_put_u64(tmp, u64(0)) // upper 64 bits are always zero, because len variable has type u64
binary.big_endian_put_u64(tmp.right(8), len)
binary.big_endian_put_u64(mut tmp, u64(0)) // upper 64 bits are always zero, because len variable has type u64
binary.big_endian_put_u64(mut tmp.right(8), len)
d.write(tmp.left(16))
if d.nx != 0 {
@@ -227,15 +228,15 @@ fn (d mut Digest) checksum() []byte {
mut digest := [byte(0); Size]
binary.big_endian_put_u64(digest, d.h[0])
binary.big_endian_put_u64(digest.right(8), d.h[1])
binary.big_endian_put_u64(digest.right(16), d.h[2])
binary.big_endian_put_u64(digest.right(24), d.h[3])
binary.big_endian_put_u64(digest.right(32), d.h[4])
binary.big_endian_put_u64(digest.right(40), d.h[5])
binary.big_endian_put_u64(mut digest, d.h[0])
binary.big_endian_put_u64(mut digest.right(8), d.h[1])
binary.big_endian_put_u64(mut digest.right(16), d.h[2])
binary.big_endian_put_u64(mut digest.right(24), d.h[3])
binary.big_endian_put_u64(mut digest.right(32), d.h[4])
binary.big_endian_put_u64(mut digest.right(40), d.h[5])
if d.function != crypto.Hash.SHA384 {
binary.big_endian_put_u64(digest.right(48), d.h[6])
binary.big_endian_put_u64(digest.right(56), d.h[7])
binary.big_endian_put_u64(mut digest.right(48), d.h[6])
binary.big_endian_put_u64(mut digest.right(56), d.h[7])
}
return digest
@@ -278,10 +279,10 @@ pub fn sum512_256(data []byte) []byte {
return sum256
}
fn block(dig &Digest, p []byte) {
fn block(dig mut Digest, p []byte) {
// For now just use block_generic until we have specific
// architecture optimized versions
block_generic(dig, p)
block_generic(mut dig, p)
}
pub fn (d &Digest) size() int {

2
vlib/crypto/sha512/sha512block_generic.v
View File

@@ -94,7 +94,7 @@ const(
]
)
fn block_generic(dig &Digest, p []byte) {
fn block_generic(dig mut Digest, p []byte) {
mut w := [u64(0); 80]
mut h0 := dig.h[0]