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// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
module builtin
import strings
// This was never working correctly, the issue is now
// fixed however the type checks in checker need to be
// updated. if you uncomment it you will see the issue
// type rune = int
pub fn (c rune) str() string {
return utf32_to_str(u32(c))
/*
unsafe {
fst_byte := int(c)>>8 * 3 & 0xff
len := utf8_char_len(byte(fst_byte))
println('len=$len')
mut str := string{
len: len
str: malloc(len + 1)
}
for i in 0..len {
str.str[i] = byte(int(c)>>8 * (3 - i) & 0xff)
}
str.str[len] = `\0`
println(str)
return str
}
*/
}
// string converts a rune array to a string
[manualfree]
pub fn (ra []rune) string() string {
mut sb := strings.new_builder(ra.len)
sb.write_runes(ra)
res := sb.str()
unsafe { sb.free() }
return res
}
// Define this on byte as well, so that we can do `s[0].is_capital()`
pub fn (c byte) is_capital() bool {
return c >= `A` && c <= `Z`
}
pub fn (b []byte) clone() []byte {
mut res := []byte{len: b.len}
// mut res := make([]byte, {repeat:b.len})
for i in 0 .. b.len {
res[i] = b[i]
}
return res
}
// TODO: remove this once runes are implemented
pub fn (b []byte) bytestr() string {
unsafe {
buf := malloc_noscan(b.len + 1)
vmemcpy(buf, b.data, b.len)
buf[b.len] = 0
return tos(buf, b.len)
}
}
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