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desguar += and -=

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This commit is contained in:
Antoni Piasecki
2026-06-06 18:53:11 +02:00
parent 535364931e
commit 22874181cd
32 changed files with 185 additions and 146 deletions
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29
src/parser.rs
View File

@@ -355,6 +355,35 @@ impl Parser {
op,
value,
})
} else if self.match_token(&[TokenType::PlusEqual, TokenType::MinusEqual]) {
let op = self.previous().clone();
let right = self.expression()?;
let binary_token = Token {
token_type: match op.token_type {
TokenType::PlusEqual => TokenType::Plus,
TokenType::MinusEqual => TokenType::Minus,
_ => unreachable!(),
},
lexeme: match op.token_type {
TokenType::PlusEqual => String::from("+"),
TokenType::MinusEqual => String::from("-"),
_ => unreachable!(),
},
loc: op.loc.clone(),
};
Ok(Stmt::Assign {
left: expr.clone(),
op: Token {
token_type: TokenType::Equal,
lexeme: String::from("="),
loc: op.loc,
},
value: Expr::new(ExprKind::Binary {
left: Box::new(expr),
op: binary_token,
right: Box::new(right),
}),
})
} else {
Ok(Stmt::Expression(expr))
}

12
src/std/net.zr
View File

@@ -138,11 +138,11 @@ func net.encode_dns_name[domain: str] : Blob
if i == domain_len || domain[i] == '.'
part_len := i - part_start
buf->data[out_pos] = part_len & 0xff
out_pos = out_pos + 1
out_pos += 1
mem.copy(domain as ptr + part_start, buf->data + out_pos, part_len)
out_pos = out_pos + part_len
out_pos += part_len
part_start = i + 1
i = i + 1
i += 1
buf->data[out_pos] = 0
return buf
@@ -188,11 +188,11 @@ func net.resolve[domain: str] : i64, bool
pos := 12 // skip header (12 bytes)
while pkt->data[pos] != 0
pos = pos + pkt->data[pos] + 1 // skip question
pos += pkt->data[pos] + 1 // skip question
pos = pos + 5 // skip null byte, type(2), class(2)
pos += 5 // skip null byte, type(2), class(2)
pos = pos + 12 // skip name(2), type(2), class(2), ttl(4), rdlength(2)
pos += 12 // skip name(2), type(2), class(2), ttl(4), rdlength(2)
out := net.pack_addr(pkt->data[pos] as i64, pkt->data[pos+1] as i64, pkt->data[pos+2] as i64, pkt->data[pos+3] as i64)
net.UDPPacket.free(pkt)

92
src/std/std.zr
View File

@@ -90,7 +90,7 @@ func mem.free[x: any] : void
if next as ptr && next->free
expected_next := (blk as ptr + MEM_BLOCK_SIZE + blk->size) as mem.Block
if expected_next as ptr == next as ptr
blk->size = blk->size + MEM_BLOCK_SIZE + next->size
blk->size += MEM_BLOCK_SIZE + next->size
blk->next = next->next
if next->next as ptr
next->next->prev = blk
@@ -101,7 +101,7 @@ func mem.free[x: any] : void
if prev as ptr && prev->free
expected_blk := (prev as ptr + MEM_BLOCK_SIZE + prev->size) as mem.Block
if expected_blk as ptr == blk as ptr
prev->size = prev->size + MEM_BLOCK_SIZE + blk->size
prev->size += MEM_BLOCK_SIZE + blk->size
prev->next = blk->next
if blk->next as ptr
blk->next->prev = prev
@@ -168,28 +168,28 @@ func mem.zero[x: ptr, size: i64] : void
i := 0
while i + 8 <= size
mem.write64(x + i, 0)
i = i + 8
i += 8
while i < size
x[i] = 0 as u8
i = i + 1
i += 1
func mem.copy[src: ptr, dst: ptr, n: i64] : void
if dst > src && dst < src + n
i := n
while i - 8 >= 0
i = i - 8
i -= 8
mem.write64(dst + i, mem.read64(src + i))
while i > 0
i = i - 1
i -= 1
dst[i] = src[i]
else
i := 0
while i + 8 <= n
mem.write64(dst + i, mem.read64(src + i))
i = i + 8
i += 8
while i < n
dst[i] = src[i]
i = i + 1
i += 1
func mem.read8[x: ptr] : u8
return x[0]
@@ -246,20 +246,20 @@ func io.printf[..] : void
while s[0]
if s[0] == '%'
s = s + 1
s += 1
if s[0] == 'd'
io.print_i64(_var_arg(i) as i64)
i = i + 1
i += 1
else if s[0] == 'x'
io.print_i64_hex(_var_arg(i) as i64)
i = i + 1
i += 1
else if s[0] == 's'
io.print(_var_arg(i) as str)
i = i + 1
i += 1
else if s[0] == 'c'
io.print_char(_var_arg(i) as u8)
i = i + 1
i += 1
else if s[0] == '%'
io.print_char('%')
else if s[0] == 0
@@ -268,7 +268,7 @@ func io.printf[..] : void
panic("io.printf: unrecognized format")
else
io.print_char(s[0])
s = s + 1
s += 1
func io.snprintf[..] : i64
buf := _var_arg(0) as ptr
@@ -281,7 +281,7 @@ func io.snprintf[..] : i64
while s[0]
if s[0] == '%'
s = s + 1
s += 1
if s[0] == 'd'
tmp := _stackalloc(21)
@@ -289,32 +289,32 @@ func io.snprintf[..] : i64
tmp_len := str.len(tmp as str)
remaining := size - n - 1
mem.copy(tmp, buf + n, math.min(tmp_len, remaining))
n = n + tmp_len
i = i + 1
n += tmp_len
i += 1
else if s[0] == 'x'
tmp := _stackalloc(17)
str.hex_from_i64_buf(tmp, _var_arg(i) as i64)
tmp_len := str.len(tmp as str)
remaining := size - n - 1
mem.copy(tmp, buf + n, math.min(tmp_len, remaining))
n = n + tmp_len
i = i + 1
n += tmp_len
i += 1
else if s[0] == 's'
tmp_str := _var_arg(i) as str
tmp_len := str.len(tmp_str)
remaining := size - n - 1
mem.copy(tmp_str as ptr, buf + n, math.min(tmp_len, remaining))
n = n + tmp_len
i = i + 1
n += tmp_len
i += 1
else if s[0] == 'c'
if n < size - 1
buf[n] = _var_arg(i) as u8
n = n + 1
i = i + 1
n += 1
i += 1
else if s[0] == '%'
if n < size - 1
buf[n] = '%'
n = n + 1
n += 1
else if s[0] == 0
break
else
@@ -322,8 +322,8 @@ func io.snprintf[..] : i64
else
if n < size - 1
buf[n] = s[0]
n = n + 1
s = s + 1
n += 1
s += 1
if n < size
buf[n] = 0
@@ -449,7 +449,7 @@ func io.write_binary_file[path: str, content: ptr, size: i64] : bool
func str.len[s: str] : i64
i := 0
while s[i]
i = i + 1
i += 1
return i
func str.make_copy[s: str] : str
@@ -463,7 +463,7 @@ func str.equal[a: str, b: str] : bool
while a[i] != 0 && b[i] != 0
if a[i] != b[i]
return false
i = i + 1
i += 1
return a[i] == b[i]
func str.is_whitespace[x: u8] : bool
@@ -543,10 +543,10 @@ func str.trim[s: str] : str
end := len - 1
while start <= end && str.is_whitespace(s[start])
start = start + 1
start += 1
while end >= start && str.is_whitespace(s[end])
end = end - 1
end -= 1
return str.substr(s, start, end - start + 1)
@@ -575,9 +575,9 @@ func str.split[haystack: str, needle: str]: Array
if match
array.push(result, str.substr(haystack, start, i - start))
start = i + needle_len
i = i + needle_len
i += needle_len
continue
i = i + 1
i += 1
array.push(result, str.substr(haystack, start, haystack_len - start))
return result
@@ -609,16 +609,16 @@ func str.from_i64_buf[buf: ptr, n: i64] : void
tmp := _stackalloc(21)
end := 20
tmp[end] = 0
end = end - 1
end -= 1
for i in 0..19
if n == 0
break
tmp[end] = '0' + (n % 10)
n = n / 10
end = end - 1
end -= 1
if neg
tmp[end] = '-'
end = end - 1
end -= 1
len := 19 - end
for i in 0..len
buf[i] = tmp[end + 1 + i]
@@ -646,7 +646,7 @@ func str.hex_from_i64_buf[buf: ptr, n: i64] : void
break
tmp[len] = hex_chars[n & 15]
n = (n >> 4) & mask
len = len + 1
len += 1
for j in 0..len
buf[j] = tmp[len - 1 - j]
@@ -666,7 +666,7 @@ func str.parse_i64[s: str] : i64
sign := 1
if i < len && s[i] == '-'
sign = -1
i = i + 1
i += 1
num := 0
while i < len
@@ -674,7 +674,7 @@ func str.parse_i64[s: str] : i64
if d < '0' || d > '9'
break
num = num * 10 + (d - '0')
i = i + 1
i += 1
return num * sign
func str.hex_encode[s: str, s_len: i64] : str
@@ -731,13 +731,13 @@ func str.Builder._grow[b: str.Builder, needed: i64] : void
func str.Builder.append_char[b: str.Builder, c: u8] : void
str.Builder._grow(b, 1)
b->data[b->size] = c
b->size = b->size + 1
b->size += 1
func str.Builder.append[b: str.Builder, s: str] : void
len := str.len(s)
str.Builder._grow(b, len)
mem.copy(s as ptr, b->data + b->size, len)
b->size = b->size + len
b->size += len
func str.Builder.build[b: str.Builder] : str
s := mem.alloc(b->size + 1) as str
@@ -820,7 +820,7 @@ func math.is_prime[n: i64]: bool
while i * i <= n
if n % i == 0 || n % (i + 2) == 0
return false
i = i + 6
i += 6
return true
struct Array
@@ -856,7 +856,7 @@ func array.push[xs: Array, x: any] : void
xs->capacity = new_capacity
mem.write64(xs->data + xs->size * 8, x)
xs->size = xs->size + 1
xs->size += 1
func array.free[xs: Array] : void
if xs->data != 0
@@ -986,7 +986,7 @@ func alg._partition[arr: Array, low: i64, high: i64] : i64
i := low - 1
for j in (low)..high
if array.nth(arr, j) as i64 <= pivot
i = i + 1
i += 1
temp : i64 = array.nth(arr ,i)
array.set(arr, i, array.nth(arr, j))
array.set(arr, j, temp)
@@ -999,7 +999,7 @@ func alg.count[arr: Array, item: any] : i64
count := 0
for i in 0..arr->size
if array.nth(arr, i) == item
count = count + 1
count += 1
return count
func alg.map[arr: Array, fn: fnptr] : Array
@@ -1044,7 +1044,7 @@ func os.urandom_buf[buf: ptr, n: i64] : void
ret := _builtin_syscall(SYS_getrandom, buf + pos, n - pos, 0)
if ret <= 0
panic("os.urandom_buf: syscall failed")
pos = pos + ret
pos += ret
func os.urandom[n: i64]: ptr
buf := mem.alloc(n)
@@ -1119,7 +1119,7 @@ func os.list_directory[path: str] : Array, bool
skip = true
if !skip
array.push(files, str.make_copy(name as str))
pos = pos + len
pos += len
_builtin_syscall(SYS_close, fd)
return files, true

14
src/tokenizer.rs
View File

@@ -8,7 +8,9 @@ pub enum TokenType {
RightBracket,
Comma,
Plus,
PlusEqual,
Minus,
MinusEqual,
Star,
Slash,
Mod,
@@ -154,7 +156,13 @@ impl Tokenizer {
')' => self.add_token(TokenType::RightParen)?,
'[' => self.add_token(TokenType::LeftBracket)?,
']' => self.add_token(TokenType::RightBracket)?,
'+' => self.add_token(TokenType::Plus)?,
'+' => {
if self.match_char('=') {
self.add_token(TokenType::PlusEqual)?
} else {
self.add_token(TokenType::Plus)?
}
}
'*' => self.add_token(TokenType::Star)?,
',' => self.add_token(TokenType::Comma)?,
'%' => self.add_token(TokenType::Mod)?,
@@ -162,7 +170,9 @@ impl Tokenizer {
':' => self.add_token(TokenType::Colon)?,
'~' => self.add_token(TokenType::Tilde)?,
'-' => {
if self.match_char('>') {
if self.match_char('=') {
self.add_token(TokenType::MinusEqual)?
} else if self.match_char('>') {
self.add_token(TokenType::Arrow)?
} else {
self.add_token(TokenType::Minus)?