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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,63 +1,35 @@ | ||
| test-io = 1 | ||
|
|
||
| type IO_T: | ||
| Done { magic, expr } | ||
| Call { magic, func, argm, cont } | ||
| def unwrap(res): | ||
| match res: | ||
| case Result/Ok: | ||
| return res.val | ||
| case Result/Err: | ||
| return res.val | ||
|
|
||
| def IO_T/MAGIC: | ||
| return (0xD0CA11, 0xFF1FF1) | ||
| def open(): | ||
| return call("OPEN", ("./LICENSE", "r")) | ||
|
|
||
| def IO_T/bind(a, b): | ||
| match a: | ||
| case IO_T/Done: | ||
| return (undefer(b))(a.expr) | ||
| case IO_T/Call: | ||
| return IO_T/Call(IO_T/MAGIC, a.func, a.argm, lambda x: IO_T/bind(a.cont(x), b)) | ||
| def read(f): | ||
| return call("READ", (f, 47)) | ||
|
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||
| def call_io(func, argm): | ||
| return IO_T/Call(IO_T/MAGIC, func, argm, lambda x: IO_T/Done(IO_T/MAGIC, x)) | ||
| def print(bytes): | ||
| with IO: | ||
| * <- call("WRITE", (1, bytes)) | ||
| * <- call("WRITE", (1, "\n")) | ||
|
|
||
| def read_input(): | ||
| with IO_T: | ||
| * <- call_io("WRITE", (1, "What is your name?\n")) | ||
| return call_io("READ", (0, 10)) | ||
| return wrap(*) | ||
|
|
||
| def write_to_file(): | ||
| with IO_T: | ||
| fp <- call_io("OPEN", ("testing.txt", "w")) | ||
| input <- read_input() | ||
| * <- call_io("WRITE", (fp, input)) | ||
| * <- call_io("WRITE", (fp, "\n")) | ||
|
|
||
| return call_io("CLOSE", fp) | ||
|
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| def read_from_file(): | ||
| with IO_T: | ||
| fp <- call_io("OPEN", ("testing.txt", "r")) | ||
| bytes <- call_io("READ", (fp, 5)) | ||
| * <- call_io("WRITE", (1, bytes)) | ||
| * <- call_io("SEEK", (fp, 2, 0)) | ||
| bytes <- call_io("READ", (fp, 5)) | ||
| * <- call_io("WRITE", (1, bytes)) | ||
|
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||
| return call_io("CLOSE", fp) | ||
|
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| def write: | ||
| return "WRITE" | ||
|
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||
| def one: | ||
| return 1 | ||
|
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| def newline: | ||
| return "\n" | ||
|
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| def one_newline_pair: | ||
| return (one, newline) | ||
| def close(f): | ||
| return call("CLOSE", f) | ||
|
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||
| def main(): | ||
| with IO_T: | ||
| * <- write_to_file() | ||
| * <- read_from_file() | ||
| * <- call_io(write, one_newline_pair) | ||
|
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||
| return 42 | ||
| with IO: | ||
| f <- open() | ||
| f = unwrap(f) | ||
| bytes <- read(f) | ||
| bytes = unwrap(bytes) | ||
| * <- print(bytes) | ||
| res <- close(f) | ||
|
|
||
| return wrap(res) |
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