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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
fn (a any) toString()
pub fn println(s any) {
// Quickfix to properly print basic types
// TODO: Add proper detection code for this
JS.console.log(s.toString())
}
pub fn print(s any) {
// TODO
// $if js.node {
JS.process.stdout.write(s.toString())
// } $else {
// panic('Cannot `print` in a browser, use `println` instead')
// }
}
pub fn eprintln(s any) {
JS.console.error(s.toString())
}
pub fn eprint(s any) {
// TODO
// $if js.node {
JS.process.stderr.write(s.toString())
// } $else {
// panic('Cannot `eprint` in a browser, use `eprintln` instead')
// }
}
// Exits the process in node, and halts execution in the browser
// because `process.exit` is undefined. Workaround for not having
// a 'real' way to exit in the browser.
pub fn exit(c int) {
JS.process.exit(c)
js_throw('exit($c)')
}
pub fn unwrap(opt any) any {
o := &Option(opt)
if o.state != 0 {
js_throw(o.err)
}
return opt
}
pub fn panic(s string) {
eprintln('V panic: $s')
exit(1)
}
struct Option {
state byte
err Error
}
pub struct Error {
pub:
msg string
code int
}
pub fn (o Option) str() string {
if o.state == 0 {
return 'Option{ ok }'
}
if o.state == 1 {
return 'Option{ none }'
}
return 'Option{ error: "$o.err" }'
}
pub fn error(s string) Option {
return Option{
state: 2
err: Error{
msg: s
}
}
}
pub fn error_with_code(s string, code int) Option {
return Option{
state: 2
err: Error{
msg: s
code: code
}
}
}
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