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LibRegex: Add the literal string search optimisation

This switches to using a simple string equality check if the regex
pattern is strictly a string literal.
Technically this optimisation can also be made on bounded literal
patterns like /[abc]def/ or /abc|def/ as well, but those are
significantly more complex to implement due to our bytecode-only
approach.
This commit is contained in:
Ali Mohammad Pur 2023-07-28 20:59:33 +03:30 committed by Andreas Kling
parent 221c52c696
commit 18f4b6c670
6 changed files with 82 additions and 4 deletions

View file

@ -55,6 +55,10 @@ public:
Token error_token;
Vector<DeprecatedFlyString> capture_groups;
AllOptions options;
struct {
Optional<DeprecatedString> pure_substring_search;
} optimization_data {};
};
explicit Parser(Lexer& lexer)