Module: Mustermann::AST::FastPattern

Included in:
Rails, Sinatra
Defined in:
lib/mustermann/ast/fast_pattern.rb

Overview

Mixin for AST::Pattern subclasses that accelerates compilation and AST construction for “simple” patterns: only static path segments and unconstrained full-segment captures (e.g. /foo/:bar/baz/:id). Patterns with optional groups, constraints, or non-default options fall through to the full AST pipeline.

Instance Method Summary collapse

Instance Method Details

#params(string = nil) ⇒ Object 



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# File 'lib/mustermann/ast/fast_pattern.rb', line 38

def params(string = nil)
  return super unless @fast_match
  return unless md = @regexp.match(string)
  result = md.named_captures
  result.transform_values! { |v| v.include?('%') ? unescape(v) : v } if string.include?('%')
  result
end

#to_ast ⇒ Object

Public override: fast path for simple patterns, falls through to super otherwise. Must remain public to match AST::Pattern#to_ast visibility.



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# File 'lib/mustermann/ast/fast_pattern.rb', line 31

def to_ast
  return super unless simple_pattern?
  ast = self.class.ast_cache.fetch(@string) { build_fast_ast }
  @param_converters ||= {}
  ast
end