Hojun-Cho
1ac1d985f6
Sweeping rename so the lib/ surface mirrors Hare's stdlib spellings. - ascii: rune-taking predicates; ishex -> isxdigit - bufio: rinit -> init; take1/takeline -> readbyte/readline - bytes: indexsub -> index - encoding/utf8: runelen -> runesz - errors: eEOF/eShortRead/... -> eof/underread/... - fmt: errln -> errorln; println/fprintln return i64 - os: readfull/writefull -> readall/writeall; unlink -> remove - path: isabs -> abs; drop lastindex (now strings.rbyteindex) - strconv: u64toa/i64toa -> u64tos/i64tos; parse64/parseu64 -> stoi64/stou64 - strings: drop len/isempty; equal -> compare; indexbyte -> byteindex; +rbyteindex - types: drop numeric helpers (moved to math) - new lib/endian (htonu16/ntohu16), lib/math (absi32/absi64) - net: drop htons (use endian.htonu16) Callers in selfhost/, lib/ww/, cmd/w6c/cgen.c, and test/wcc/700_e2e.c updated to match.
31 lines
943 B
Plaintext
31 lines
943 B
Plaintext
// errors — error type (a string) and a few sentinels. Plan 9 model:
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// the empty string means OK, a non-empty string is the message.
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type error = str;
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def eof: error = "eof";
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def underread: error = "short read";
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def underwrite: error = "short write";
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def closed: error = "closed";
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def invalid: error = "invalid argument";
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def noaccess: error = "permission denied";
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def noentry: error = "not found";
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def exists: error = "already exists";
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export fn isnil(e: error) bool = {
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return e.len == 0;
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};
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// equal — compare an error against a sentinel (or any other error).
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// Pure byte equality. (Was `errors.is` before `is` became a keyword
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// for tagged-union type-tests; rename matches bytes.equal / strings.equal.)
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export fn equal(e: error, want: error) bool = {
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if (e.len != want.len) { return false; };
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let i: i32 = 0;
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for (i < e.len) {
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if (e[i] != want[i]) { return false; };
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i += 1;
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};
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return true;
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};
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