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