Class: Filigree::BasicPattern

Inherits:

Object

• Object
• Filigree::BasicPattern

Extended by:

AbstractClass

Includes:

Comparable

Defined in:

lib/filigree/match.rb

Overview

This class provides the basis for all match patterns.

Direct Known Subclasses

MultipleObjectPattern, SingleObjectPattern, WildcardPattern

Instance Method Summary

• #<=>(other) ⇒ Integer

  Base implementation of bi-directional comparison for patterns.

• #as(binding_pattern) ⇒ Object

  Wraps this pattern in a BindingPattern, causing the object that this pattern matches to be bound to this name in the with block.

Methods included from AbstractClass

abstract_method, extended, install_icvars, new

Instance Method Details

#<=>(other) ⇒ Integer

Base implementation of bi-directional comparison for patterns.

Parameters:

• other (BasicPattern) —

  Right-hand side of the comparison

Returns:

• (Integer) —

  Value corresponding to less than, equal to, or greater than the right-hand side pattern.

# File 'lib/filigree/match.rb', line 302

def <=>(other)
	# This is performed in the non-intuitive order due to
	# higher-priority patterns having lower weights.
	other.weight - self.weight
end

#as(binding_pattern) ⇒ Object

Wraps this pattern in a Filigree::BindingPattern, causing the object that this pattern matches to be bound to this name in the with block.

Parameters:

• binding_pattern (BindingPattern) —

  Binding pattern containing the name

# File 'lib/filigree/match.rb', line 312

def as(binding_pattern)
	binding_pattern.tap { |bp| bp.pattern_elem = self }
end