Class: Expressir::Express::Builders::ConstantBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/expressir/express/builders/constant_builder.rb

Overview

Builds constant and local variable nodes.

Instance Method Summary collapse

Instance Method Details

#build_constant_body(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 12

def build_constant_body(ast_data)
  id = Builder.build_optional(ast_data[:constant_id])
  type = Builder.build_optional(ast_data[:instantiable_type])
  expression = if ast_data[:expression]
                 Builder.build({ expression: ast_data[:expression] })
               end

  Expressir::Model::Declarations::Constant.new(id: id, type: type,
                                               expression: expression)
end

#build_constant_decl(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 8

def build_constant_decl(ast_data)
  Builder.build_children(ast_data[:constant_body])
end

#build_formal_parameter(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 58

def build_formal_parameter(ast_data)
  param_id_data = ast_data[:list_of_parameter_id] || ast_data

  ids_data = if param_id_data.is_a?(Hash) && param_id_data[:parameter_id]
               param_id_data[:parameter_id]
             else
               param_id_data
             end

  ids = if ids_data.is_a?(Hash)
          [Builder.build({ parameter_id: ids_data })]
        elsif ids_data.is_a?(Array)
          ids_data.filter_map do |elem|
            actual_id = elem[:parameter_id] || elem
            Builder.build({ parameter_id: actual_id })
          end
        else
          []
        end

  type = Builder.build_optional(ast_data[:parameter_type])
  ids.flatten.compact.map { |id| Expressir::Model::Declarations::Parameter.new(id: id, type: type) }
end

#build_local_decl(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 23

def build_local_decl(ast_data)
  Builder.build_children(ast_data[:local_variable])
end

#build_local_variable(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 27

def build_local_variable(ast_data)
  var_id_data = ast_data[:list_of_variable_id] || ast_data

  ids_data = if var_id_data.is_a?(Hash) && var_id_data[:variable_id]
               var_id_data[:variable_id]
             else
               var_id_data
             end

  ids = if ids_data.is_a?(Hash)
          [Builder.build({ variable_id: ids_data })]
        elsif ids_data.is_a?(Array)
          ids_data.filter_map do |elem|
            actual_id = elem[:variable_id] || elem
            Builder.build({ variable_id: actual_id })
          end
        else
          []
        end

  type = Builder.build_optional(ast_data[:parameter_type])
  expression = if ast_data[:expression]
                 Builder.build({ expression: ast_data[:expression] })
               end

  ids.flatten.compact.map do |id|
    Expressir::Model::Declarations::Variable.new(id: id, type: type,
                                                 expression: expression)
  end
end

#build_procedure_head_parameter(ast_data) ⇒ Object 



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# File 'lib/expressir/express/builders/constant_builder.rb', line 82

def build_procedure_head_parameter(ast_data)
  formal_param_data = ast_data[:formal_parameter]
  params = if formal_param_data.is_a?(Hash)
             result = Builder.build({ formal_parameter: formal_param_data })
             Builder.ensure_array(result)
           elsif formal_param_data.is_a?(Array)
             formal_param_data.flat_map do |fp|
               Builder.build({ formal_parameter: fp })
             end.compact
           else
             []
           end
  is_var = !ast_data[:t_var].nil?

  if is_var
    params.map do |p|
      Expressir::Model::Declarations::Parameter.new(id: p.id,
                                                    var: true, type: p.type)
    end
  else
    params
  end
end