module builtin // used to generate JS throw statements. pub fn js_throw(s any) { #throw s } pub fn println(s string) { $if js_freestanding { #print(s.str) } $else { #console.log(s.str) } } pub fn print(s string) { $if js_node { #$process.stdout.write(s.str) } $else { panic('Cannot `print` in a browser, use `println` instead') } } pub fn eprintln(s string) { $if js_freestanding { #print(s.str) } $else { #console.error(s.str) } } pub fn eprint(s string) { $if js_node { #$process.stderr.write(s.str) } $else { panic('Cannot `eprint` in a browser, use `println` instead') } } // Exits the process in node, and halts execution in the browser // because `process.exit` is undefined. Workaround for not having // a 'real' way to exit in the browser. pub fn exit(c int) { JS.process.exit(c) js_throw('exit($c)') } fn opt_ok(data voidptr, option Option) { #option.state = 0 #option.err = none__ #option.data = data } pub fn unwrap(opt string) string { mut o := Option{} #o = opt if o.state != 0 { js_throw(o.err) } mut res := '' #res = opt.data return res }