Class: YAML::Pairs

Inherits:
Array show all
Defined in:
lib/yaml/types.rb

Overview

Builtin collection: !pairs

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.[](*vals) ⇒ Object 



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# File 'lib/yaml/types.rb', line 157

def self.[]( *vals )
    p = Pairs.new
    0.step( vals.length - 1, 2 ) { |i|
        p[vals[i]] = vals[i+1]
    }
    p
end

Instance Method Details

#[](k) ⇒ Object 



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# File 'lib/yaml/types.rb', line 164

def []( k )
    self.assoc( k ).to_a
end

#[]=(k, val) ⇒ Object 



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# File 'lib/yaml/types.rb', line 167

def []=( k, val )
    self << [ k, val ] 
    val
end

#has_key?(k) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yaml/types.rb', line 171

def has_key?( k )
    self.assoc( k ) ? true : false
end

#is_complex_yaml? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yaml/types.rb', line 174

def is_complex_yaml?
    true
end

#to_yaml(opts = {}) ⇒ Object 



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# File 'lib/yaml/types.rb', line 177

def to_yaml( opts = {} )
    YAML::quick_emit( self.object_id, opts ) do |out|
        out.seq( taguri, to_yaml_style ) do |seq|
            self.each do |v|
                seq.add( Hash[ *v ] )
            end
        end
    end
end

#yaml_initialize(tag, val) ⇒ Object 



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# File 'lib/yaml/types.rb', line 143

def yaml_initialize( tag, val )
    if Array === val
        val.each do |v|
            if Hash === v
                concat( v.to_a )		# Convert the map to a sequence
            else
                raise YAML::Error, "Invalid !pairs entry: " + val.inspect
            end
        end
    else
        raise YAML::Error, "Invalid !pairs: " + val.inspect
    end
    self
end