Rune/Cpp2Beef
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Stop using fatal errors

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This commit is contained in:
Rune
2026-03-05 17:02:04 +01:00
parent 3590478b20
commit fa90624c84
4 changed files with 82 additions and 33 deletions
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29
CxxBuilder/src/FileMatcher.bf
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@@ -7,7 +7,13 @@ namespace CxxBuilder;
static class FileMatcher
{
public static void HandleMatches(Span<StringView> patterns, StringView directory, delegate void(StringView match) callback)
public enum Error
{
ExpectedEscapeSequence,
CharacterClassNotClosed,
}
public static Result<void, Error> HandleMatches(Span<StringView> patterns, StringView directory, delegate void(StringView match) callback)
{
Runtime.Assert(Directory.Exists(directory), scope $"No such directory {directory}");
void Dir(StringView dir)
@@ -38,13 +44,14 @@ static class FileMatcher
}
}
Dir(directory);
return .Ok;
}
public static bool IsMatch(StringView pattern, StringView path)
public static Result<bool, Error> IsMatch(StringView pattern, StringView path)
{
var pattern, path;
bool Matches(StringView pattern, char8 c)
Result<bool, Error> Matches(StringView pattern, char8 c)
{
if (pattern.IsEmpty) return false;
@@ -56,7 +63,7 @@ static class FileMatcher
return !Path.IsDirectorySeparatorChar(c);
case '?': return true;
case '\\':
Runtime.Assert(pattern.Length > 1, "Expected escape sequence");
if (pattern.Length <= 1) return .Err(.ExpectedEscapeSequence);
return c == pattern[1];
case '/': return Path.IsDirectorySeparatorChar(c);
case '[':
@@ -64,13 +71,14 @@ static class FileMatcher
char8 Next()
{
if (pattern.Length <= ++i)
Runtime.FatalError("Character class not closed");
return (.)7;
return pattern[i];
}
bool negated = false;
char8 current;
switch (Next())
{
case (.)7: return .Err(.CharacterClassNotClosed);
case '^', '!': negated = true; fallthrough;
case '\\': current = Next();
case ']': return false;
@@ -100,7 +108,12 @@ static class FileMatcher
{
if (path.IsEmpty) return true;
if (pattern.IsEmpty) return false;
if (!Matches(pattern, path[0])) return false;
switch (Matches(pattern, path[0]))
{
case .Err: return _;
case .Ok(false): return false;
case .Ok:
}
switch (pattern[0])
{
case '*':
@@ -114,8 +127,8 @@ static class FileMatcher
defer { pattern = lazy; }
while (true)
{
if (IsMatch(lazy, path)) continue reduce;
if (!Matches(pattern, path[0])) continue reduce;
if (Try!(IsMatch(lazy, path))) continue reduce;
if (!Try!(Matches(pattern, path[0]))) continue reduce;
path.RemoveFromStart(1);
if (path.IsEmpty) return lazy.IsEmpty;
}