1
0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/vlib/builtin/wasm/wasi/builtin.v

62 lines
1.1 KiB
V

module builtin
// print prints a message to stdout. Unlike `println` stdout is not automatically flushed.
pub fn print(s string) {
elm := CIOVec{
buf: s.str
len: usize(s.len)
}
WASM.fd_write(1, &elm, 1, -1)
}
// println prints a message with a line end, to stdout.
pub fn println(s string) {
elm := [CIOVec{
buf: s.str
len: usize(s.len)
}, CIOVec{
buf: c'\n'
len: 1
}]!
WASM.fd_write(1, &elm[0], 2, -1)
}
// eprint prints a message to stderr.
pub fn eprint(s string) {
elm := CIOVec{
buf: s.str
len: usize(s.len)
}
WASM.fd_write(2, &elm, 1, -1)
}
// eprintln prints a message with a line end, to stderr.
pub fn eprintln(s string) {
elm := [CIOVec{
buf: s.str
len: usize(s.len)
}, CIOVec{
buf: c'\n'
len: 1
}]!
WASM.fd_write(2, &elm[0], 2, -1)
}
// exit terminates execution immediately and returns exit `code` to the shell.
[noreturn]
pub fn exit(code int) {
WASM.proc_exit(code)
}
// panic prints a nice error message, then exits the process with exit code of 1.
[noreturn]
pub fn panic(s string) {
eprint('V panic: ')
eprintln(s)
exit(1)
}