Class: TOML::Keygroup
- Inherits:
-
Object
- Object
- TOML::Keygroup
- Defined in:
- lib/toml/keygroup.rb
Instance Method Summary collapse
- #accept_visitor(parser) ⇒ Object
-
#ensure_key_not_defined(visited_keys) ⇒ Object
Fail if the key was already defined with a ValueOverwriteError.
- #full_key ⇒ Object
-
#initialize(nested_keys) ⇒ Keygroup
constructor
A new instance of Keygroup.
- #navigate_keys(hash, visited_keys, symbolize_keys = false) ⇒ Object
Constructor Details
#initialize(nested_keys) ⇒ Keygroup
Returns a new instance of Keygroup.
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# File 'lib/toml/keygroup.rb', line 3 def initialize(nested_keys) @nested_keys = nested_keys end |
Instance Method Details
#accept_visitor(parser) ⇒ Object
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# File 'lib/toml/keygroup.rb', line 26 def accept_visitor(parser) parser.visit_keygroup self end |
#ensure_key_not_defined(visited_keys) ⇒ Object
Fail if the key was already defined with a ValueOverwriteError
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# File 'lib/toml/keygroup.rb', line 21 def ensure_key_not_defined(visited_keys) fail ValueOverwriteError.new(full_key) if visited_keys.include?(full_key) visited_keys << full_key end |
#full_key ⇒ Object
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# File 'lib/toml/keygroup.rb', line 30 def full_key @nested_keys.join('.') end |
#navigate_keys(hash, visited_keys, symbolize_keys = false) ⇒ Object
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# File 'lib/toml/keygroup.rb', line 7 def navigate_keys(hash, visited_keys, symbolize_keys = false) ensure_key_not_defined(visited_keys) @nested_keys.each do |key| key = symbolize_keys ? key.to_sym : key hash[key] = {} unless hash.key?(key) element = hash[key] hash = element.is_a?(Array) ? element.last : element # check that key has not been defined before as a scalar value fail ValueOverwriteError.new(key) unless hash.is_a?(Hash) end hash end |