Hojun-Cho
2243849855
Five tags from ref/hare/errors/common.ha — invalid, noaccess, noentry, exists, unsupported — all !void. lib/io keeps eof/closed as plain void (no Hare analogue for ww's singleton-style done) and adds underread. Drops errors.equal/isnil and the old str-sentinel surface.
26 lines
923 B
Plaintext
26 lines
923 B
Plaintext
// errors — domain-agnostic error types. Mirrors ref/hare/errors/.
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//
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// Named-void tagged-union variants, so `(T | errors.invalid | ...)`
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// composes with every other module's error surface at the tag level.
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// Per-domain errors (io.eof, io.closed, io.underread, strconv.overflow,
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// ...) live in their own modules; this module ships only the generic
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// conditions Hare's errors:: exports.
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//
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// Subset shipped today; add more from Hare's errors/common.ha as callers
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// need them.
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// A function was called with an invalid combination of arguments.
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export type invalid = !void;
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// The user does not have permission to use this resource.
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export type noaccess = !void;
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// An entry was requested which does not exist.
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export type noentry = !void;
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// An attempt was made to create a resource which already exists.
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export type exists = !void;
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// The requested operation is not supported.
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export type unsupported = !void;
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