Runtime assertions for Ruby
literal.fun
ruby
Allow defaults to reference methods inside class (#320)
authored by
Ricky Chilcott
and committed by
GitHub
7653ee84
d6e73754
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-3
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lib/literal/property.rb
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lib/literal/property.rb
···
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RUBY_KEYWORDS[@name] || @name.name
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end
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def default_value
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def default_value(receiver)
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case @default
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when Proc then @default.call
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when Proc then receiver.instance_exec(&@default)
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else @default
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end
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end
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escaped_name <<
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"\n " <<
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escaped_name <<
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" = __property__.default_value\n end\n"
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" = __property__.default_value(self)\n end\n"
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end
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def generate_initializer_check_type(buffer = +"")
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test/properties.test.rb
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test/properties.test.rb
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prop :block, Proc, :&, reader: :public, default: -> { proc { "Hello" } }
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end
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class WithContextualDefault
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extend Literal::Properties
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prop :hello, String, reader: :private, default: "Hello".freeze
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prop :world, String, reader: :private, default: "World".freeze
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prop :combined, String, reader: :public, default: -> { "#{hello} #{world}" }
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end
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class WithNilableType
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extend Literal::Properties
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prop :name, Literal::Types::NilableType.new(String), :positional
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object = WithDefaultBlock.new { "World" }
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assert_equal object.block.call, "World"
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end
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test "default value (as a proc) executes in the context of the receiver" do
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object = WithContextualDefault.new
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assert_equal object.combined, "Hello World"
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end
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test "properties are enumerable" do