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#+build js
package fmt
import "core:bufio"
import "core:io"
import "core:os"
foreign import "odin_env"
@(private="file")
foreign odin_env {
write :: proc "contextless" (fd: u32, p: []byte) ---
}
@(private="file")
write_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte, offset: i64, whence: io.Seek_From) -> (n: i64, err: io.Error) {
if mode == .Write {
fd := u32(uintptr(stream_data))
write(fd, p)
return i64(len(p)), nil
}
return 0, .Unsupported
}
@(private="file")
stdout := io.Writer{
procedure = write_stream_proc,
data = rawptr(uintptr(1)),
}
@(private="file")
stderr := io.Writer{
procedure = write_stream_proc,
data = rawptr(uintptr(2)),
}
@(private="file")
fd_to_writer :: proc(fd: os.Handle, loc := #caller_location) -> io.Writer {
switch fd {
case 1: return stdout
case 2: return stderr
case: panic("`fmt.fprint` variant called with invalid file descriptor for JS, only 1 (stdout) and 2 (stderr) are supported", loc)
}
}
// fprint formats using the default print settings and writes to fd
fprint :: proc(fd: os.Handle, args: ..any, sep := " ", flush := true, loc := #caller_location) -> int {
buf: [1024]byte
b: bufio.Writer
defer bufio.writer_flush(&b)
bufio.writer_init_with_buf(&b, fd_to_writer(fd, loc), buf[:])
w := bufio.writer_to_writer(&b)
return wprint(w, ..args, sep=sep, flush=flush)
}
// fprintln formats using the default print settings and writes to fd
fprintln :: proc(fd: os.Handle, args: ..any, sep := " ", flush := true, loc := #caller_location) -> int {
buf: [1024]byte
b: bufio.Writer
defer bufio.writer_flush(&b)
bufio.writer_init_with_buf(&b, fd_to_writer(fd, loc), buf[:])
w := bufio.writer_to_writer(&b)
return wprintln(w, ..args, sep=sep, flush=flush)
}
// fprintf formats according to the specified format string and writes to fd
fprintf :: proc(fd: os.Handle, fmt: string, args: ..any, flush := true, newline := false, loc := #caller_location) -> int {
buf: [1024]byte
b: bufio.Writer
defer bufio.writer_flush(&b)
bufio.writer_init_with_buf(&b, fd_to_writer(fd, loc), buf[:])
w := bufio.writer_to_writer(&b)
return wprintf(w, fmt, ..args, flush=flush, newline=newline)
}
// fprintfln formats according to the specified format string and writes to fd, followed by a newline.
fprintfln :: proc(fd: os.Handle, fmt: string, args: ..any, flush := true, loc := #caller_location) -> int {
return fprintf(fd, fmt, ..args, flush=flush, newline=true, loc=loc)
}
// print formats using the default print settings and writes to stdout
print :: proc(args: ..any, sep := " ", flush := true) -> int { return wprint(w=stdout, args=args, sep=sep, flush=flush) }
// println formats using the default print settings and writes to stdout
println :: proc(args: ..any, sep := " ", flush := true) -> int { return wprintln(w=stdout, args=args, sep=sep, flush=flush) }
// printf formats according to the specififed format string and writes to stdout
printf :: proc(fmt: string, args: ..any, flush := true) -> int { return wprintf(stdout, fmt, ..args, flush=flush) }
// printfln formats according to the specified format string and writes to stdout, followed by a newline.
printfln :: proc(fmt: string, args: ..any, flush := true) -> int { return wprintf(stdout, fmt, ..args, flush=flush, newline=true) }
// eprint formats using the default print settings and writes to stderr
eprint :: proc(args: ..any, sep := " ", flush := true) -> int { return wprint(w=stderr, args=args, sep=sep, flush=flush) }
// eprintln formats using the default print settings and writes to stderr
eprintln :: proc(args: ..any, sep := " ", flush := true) -> int { return wprintln(w=stderr, args=args, sep=sep, flush=flush) }
// eprintf formats according to the specififed format string and writes to stderr
eprintf :: proc(fmt: string, args: ..any, flush := true) -> int { return wprintf(stderr, fmt, ..args, flush=flush) }
// eprintfln formats according to the specified format string and writes to stderr, followed by a newline.
eprintfln :: proc(fmt: string, args: ..any, flush := true) -> int { return wprintf(stdout, fmt, ..args, flush=flush, newline=true) }
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