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// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>
use encoding::utf8;
use fmt;
use io;
// A syntax error occurred during parsing. The line number at which parsing
// failed is stored in the error.
export type syntaxerr = !size;
// Any error that may occur during parsing.
export type error = !(io::error | utf8::invalid | syntaxerr);
// Returns a user-friendly representation of [[error]]. The result may be
// statically allocated.
export fn strerror(err: error) const str = {
match (err) {
case let err: io::error =>
return io::strerror(err);
case utf8::invalid =>
return "File is invalid UTF-8";
case let s: syntaxerr =>
static let buf: [20 + len("line : Invalid syntax")]u8 = [0...];
return fmt::bsprintf(buf, "line {}: Invalid syntax", s: size)!;
};
};
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