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Fix CharInClass reference in regex emitter #61559

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Nov 15, 2021
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Fix CharInClass reference in regex emitter #61559

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4 changes: 2 additions & 2 deletions src/libraries/System.Text.RegularExpressions/gen/RegexGenerator.Emitter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3419,8 +3419,8 @@ private static string MatchCharacterClass(bool hasTextInfo, RegexOptions options
// characters other than that some might be included, for example if the character class
// were [\w\d], so since ch >= 128, we need to fall back to calling CharInClass.
return invariant ?
$"((ch = {chExpr}) < 128 ? ({Literal(bitVectorString)}[ch >> 4] & (1 << (ch & 0xF))) != 0 : CharInClass(char.ToLowerInvariant((char)ch), {Literal(charClass)}))" :
$"((ch = {chExpr}) < 128 ? ({Literal(bitVectorString)}[ch >> 4] & (1 << (ch & 0xF))) != 0 : CharInClass((char)ch, {Literal(charClass)}))";
$"((ch = {chExpr}) < 128 ? ({Literal(bitVectorString)}[ch >> 4] & (1 << (ch & 0xF))) != 0 : global::System.Text.RegularExpressions.RegexRunner.CharInClass(char.ToLowerInvariant((char)ch), {Literal(charClass)}))" :
$"((ch = {chExpr}) < 128 ? ({Literal(bitVectorString)}[ch >> 4] & (1 << (ch & 0xF))) != 0 : global::System.Text.RegularExpressions.RegexRunner.CharInClass((char)ch, {Literal(charClass)}))";
}

private static string Literal(char c) => SymbolDisplay.FormatLiteral(c, quote: true);
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