Module: Expressir::Express::Formatters::DeclarationsFormatter

Included in:
Expressir::Express::Formatter
Defined in:
lib/expressir/express/formatters/declarations_formatter.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 5

def self.included(base)
  base.register_formatter Model::Declarations::Attribute,
                          :format_declarations_attribute
  base.register_formatter Model::Declarations::Constant,
                          :format_declarations_constant
  base.register_formatter Model::Declarations::Entity,
                          :format_declarations_entity
  base.register_formatter Model::Declarations::Function,
                          :format_declarations_function
  base.register_formatter Model::Declarations::Interface,
                          :format_declarations_interface
  base.register_formatter Model::Declarations::InterfaceItem,
                          :format_declarations_interface_item
  base.register_formatter Model::Declarations::Parameter,
                          :format_declarations_parameter
  base.register_formatter Model::Declarations::Procedure,
                          :format_declarations_procedure
  base.register_formatter Model::Declarations::Rule,
                          :format_declarations_rule
  base.register_formatter Model::Declarations::Schema,
                          :format_declarations_schema
  base.register_formatter Model::Declarations::SchemaVersion,
                          :format_declarations_schema_version
  base.register_formatter Model::Declarations::SubtypeConstraint,
                          :format_declarations_subtype_constraint
  base.register_formatter Model::Declarations::Type,
                          :format_declarations_type
  base.register_formatter Model::Declarations::UniqueRule,
                          :format_declarations_unique_rule
  base.register_formatter Model::Declarations::Variable,
                          :format_declarations_variable
  base.register_formatter Model::Declarations::WhereRule,
                          :format_declarations_where_rule
  base.register_formatter Model::Declarations::InformalPropositionRule,
                          :format_declarations_informal_proposition_rule
  base.register_formatter Model::Declarations::DerivedAttribute,
                          :format_declarations_attribute
  base.register_formatter Model::Declarations::InverseAttribute,
                          :format_declarations_attribute
end

Instance Method Details

#format_declarations_attribute(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 46

def format_declarations_attribute(node)
  [
    *if node.supertype_attribute
       [
         format(node.supertype_attribute),
         " ",
       ].join
     end,
    *if node.supertype_attribute && node.id != node.supertype_attribute.attribute.id
       [
         "RENAMED",
         " ",
         node.id,
         " ",
       ].join
     end,
    *if node.id && !node.supertype_attribute
       [
         node.id,
         " ",
       ].join
     end,
    ":",
    *if node.optional
       [
         " ",
         "OPTIONAL",
       ].join
     end,
    " ",
    format(node.type),
    *if node.kind == Model::Declarations::Attribute::DERIVED
       [
         " ",
         ":=",
         " ",
         format(node.expression),
       ].join
     elsif node.kind == Model::Declarations::Attribute::INVERSE
       [
         " ",
         "FOR",
         " ",
         format(node.expression),
       ].join
     end,
    ";",
    format_inline_tail_remark(node),
  ].join
end

#format_declarations_constant(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 97

def format_declarations_constant(node)
  [
    node.id,
    " ",
    ":",
    " ",
    format(node.type),
    " ",
    ":=",
    " ",
    format(node.expression),
    ";",
  ].join
end

#format_declarations_entity(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 112

def format_declarations_entity(node)
  if node.attributes.nil?
    explicit_attributes = []
    derived_attributes = []
    inverse_attributes = []
  else
    explicit_attributes = node.attributes.select do |x|
      x.kind == Model::Declarations::Attribute::EXPLICIT
    end
    derived_attributes = node.attributes.select do |x|
      x.kind == Model::Declarations::Attribute::DERIVED
    end
    inverse_attributes = node.attributes.select do |x|
      x.kind == Model::Declarations::Attribute::INVERSE
    end
  end

  indent_const = self.class.const_get(:INDENT)
  # Only show preamble remarks if entity has explicit attributes
  preamble = if explicit_attributes&.length&.positive?
               format_preamble_remarks(node, indent(indent_const))
             end

  [
    [
      "ENTITY",
      " ",
      node.id,
      *if node.abstract && !node.supertype_expression
         [
           "\n",
           indent([
             "ABSTRACT",
             " ",
             "SUPERTYPE",
           ].join),
         ].join
       end,
      *if node.abstract && node.supertype_expression
         [
           "\n",
           indent([
             "ABSTRACT",
             " ",
             "SUPERTYPE",
             " ",
             "OF",
             " ",
             "(",
             format(node.supertype_expression),
             ")",
           ].join),
         ].join
       end,
      *if !node.abstract && node.supertype_expression
         [
           "\n",
           indent([
             "SUPERTYPE",
             " ",
             "OF",
             " ",
             "(",
             format(node.supertype_expression),
             ")",
           ].join),
         ].join
       end,
      *if node.subtype_of&.length&.positive?
         [
           "\n",
           indent([
             "SUBTYPE",
             " ",
             "OF",
             " ",
             "(",
             node.subtype_of.map { |x| format(x) }.join(", "),
             ")",
           ].join),
         ].join
       end,
      ";",
    ].join,
    *if preamble && !preamble.empty?
       preamble.rstrip
     end,
    *if explicit_attributes&.length&.positive?
       indent(explicit_attributes.map { |x| format(x) }.join("\n"))
     end,
    *if derived_attributes&.length&.positive?
       [
         "DERIVE",
         indent(derived_attributes.map { |x| format(x) }.join("\n")),
       ]
     end,
    *if inverse_attributes&.length&.positive?
       [
         "INVERSE",
         indent(inverse_attributes.map { |x| format(x) }.join("\n")),
       ]
     end,
    *if node.unique_rules&.length&.positive?
       [
         "UNIQUE",
         indent(node.unique_rules.map { |x| format(x) }.join("\n")),
       ]
     end,
    *if node.where_rules&.length&.positive?
       [
         "WHERE",
         indent(node.where_rules.map { |x| format(x) }.join("\n")),
       ]
     end,
    [
      "END_ENTITY",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_function(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 234

def format_declarations_function(node)
  indent_char = self.class.const_get(:INDENT_CHAR)
  [
    [
      "FUNCTION",
      " ",
      node.id,
      *if node.parameters&.length&.positive?
         parameter_indent = indent_char * "FUNCTION #{node.id}(".length
         [
           "(",
           node.parameters.map do |x|
             format(x)
           end.join(";\n#{parameter_indent}"),
           ")",
         ].join
       end,
      " ",
      ":",
      " ",
      format(node.return_type),
      ";",
    ].join,
    *if node.types&.length&.positive?
       indent(node.types.map { |x| format(x) }.join("\n"))
     end,
    *if node.entities&.length&.positive?
       indent(node.entities.map { |x| format(x) }.join("\n"))
     end,
    *if node.subtype_constraints&.length&.positive?
       indent(node.subtype_constraints.map { |x| format(x) }.join("\n"))
     end,
    *if node.functions&.length&.positive?
       indent(node.functions.map { |x| format(x) }.join("\n"))
     end,
    *if node.procedures&.length&.positive?
       indent(node.procedures.map { |x| format(x) }.join("\n"))
     end,
    *if node.constants&.length&.positive?
       indent([
         "CONSTANT",
         indent(node.constants.map { |x| format(x) }.join("\n")),
         [
           "END_CONSTANT",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if node.variables&.length&.positive?
       indent([
         "LOCAL",
         indent(node.variables.map { |x| format(x) }.join("\n")),
         [
           "END_LOCAL",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if node.statements&.length&.positive?
       indent(node.statements.map { |x| format(x) }.join("\n"))
     end,
    [
      "END_FUNCTION",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_informal_proposition_rule(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 716

def format_declarations_informal_proposition_rule(node)
  [
    *if node.id
       [
         node.id,
         ":",
         " ",
       ].join
     end,
  ].join
end

#format_declarations_interface(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 303

def format_declarations_interface(node)
  indent_char = self.class.const_get(:INDENT_CHAR)
  [
    case node.kind
    when Model::Declarations::Interface::USE then "USE"
    when Model::Declarations::Interface::REFERENCE then "REFERENCE"
    end,
    " ",
    "FROM",
    " ",
    format(node.schema),
    *if node.items&.length&.positive?
       item_indent = indent_char * "(".length
       [
         "\n",
         indent([
           "(",
           node.items.map { |x| format(x) }.join(",\n#{item_indent}"),
           ")",
         ].join),
       ].join
     end,
    ";",
  ].join
end

#format_declarations_interface_item(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 329

def format_declarations_interface_item(node)
  [
    format(node.ref),
    *if node.id
       [
         " ",
         "AS",
         " ",
         node.id,
       ]
     end,
  ].join
end

#format_declarations_parameter(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 343

def format_declarations_parameter(node)
  [
    *if node.var
       [
         "VAR",
         " ",
       ].join
     end,
    node.id,
    " ",
    ":",
    " ",
    format(node.type),
  ].join
end

#format_declarations_procedure(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 359

def format_declarations_procedure(node)
  indent_char = self.class.const_get(:INDENT_CHAR)
  [
    [
      "PROCEDURE",
      " ",
      node.id,
      *if node.parameters&.length&.positive?
         parameter_indent = indent_char * "PROCEDURE #{node.id}(".length
         [
           "(",
           node.parameters.map do |x|
             format(x)
           end.join(";\n#{parameter_indent}"),
           ")",
         ].join
       end,
      ";",
    ].join,
    *if node.types&.length&.positive?
       indent(node.types.map { |x| format(x) }.join("\n"))
     end,
    *if node.entities&.length&.positive?
       indent(node.entities.map { |x| format(x) }.join("\n"))
     end,
    *if node.subtype_constraints&.length&.positive?
       indent(node.subtype_constraints.map { |x| format(x) }.join("\n"))
     end,
    *if node.functions&.length&.positive?
       indent(node.functions.map { |x| format(x) }.join("\n"))
     end,
    *if node.procedures&.length&.positive?
       indent(node.procedures.map { |x| format(x) }.join("\n"))
     end,
    *if node.constants&.length&.positive?
       indent([
         "CONSTANT",
         indent(node.constants.map { |x| format(x) }.join("\n")),
         [
           "END_CONSTANT",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if node.variables&.length&.positive?
       indent([
         "LOCAL",
         indent(node.variables.map { |x| format(x) }.join("\n")),
         [
           "END_LOCAL",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if node.statements&.length&.positive?
       indent(node.statements.map { |x| format(x) }.join("\n"))
     end,
    [
      "END_PROCEDURE",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_rule(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 424

def format_declarations_rule(node)
  # Filter out statements that only exist to hold remarks in rules
  # (ALIAS/REPEAT with only Null sub-statements, query assignments, or Null statements)
  formatted_statements = []
  if node.statements&.length&.positive?
    formatted_statements = node.statements.reject do |stmt|
      # Filter ALIAS/REPEAT with only Null statements
      if stmt.is_a?(Model::Statements::Alias) || stmt.is_a?(Model::Statements::Repeat)
        stmt.statements&.all?(Model::Statements::Null)
      # Filter query assignments (assignments with QueryExpression that exist only for remarks)
      elsif stmt.is_a?(Model::Statements::Assignment) &&
          stmt.expression.is_a?(Model::Expressions::QueryExpression)
        true
      # Filter Null statements
      elsif stmt.is_a?(Model::Statements::Null)
        true
      else
        false
      end
    end
  end

  [
    [
      "RULE",
      " ",
      node.id,
      " ",
      "FOR",
      " ",
      "(",
      Array(node.applies_to).map { |x| format(x) }.join(", "),
      ")",
      ";",
    ].join,
    *if node.types&.length&.positive?
       indent(node.types.map { |x| format(x) }.join("\n"))
     end,
    *if node.entities&.length&.positive?
       indent(node.entities.map { |x| format(x) }.join("\n"))
     end,
    *if node.subtype_constraints&.length&.positive?
       indent(node.subtype_constraints.map { |x| format(x) }.join("\n"))
     end,
    *if node.functions&.length&.positive?
       indent(node.functions.map { |x| format(x) }.join("\n"))
     end,
    *if node.procedures&.length&.positive?
       indent(node.procedures.map { |x| format(x) }.join("\n"))
     end,
    *if node.constants&.length&.positive?
       indent([
         "CONSTANT",
         indent(node.constants.map { |x| format(x) }.join("\n")),
         [
           "END_CONSTANT",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if node.variables&.length&.positive?
       indent([
         "LOCAL",
         indent(node.variables.map { |x| format(x) }.join("\n")),
         [
           "END_LOCAL",
           ";",
         ].join,
       ].join("\n"))
     end,
    *if formatted_statements.length.positive?
       indent(formatted_statements.map { |x| format(x) }.join("\n"))
     end,
    *if node.where_rules&.length&.positive?
       [
         "WHERE",
         indent(node.where_rules.map { |x| format(x) }.join("\n")),
       ]
     end,
    [
      "END_RULE",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_schema(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 534

def format_declarations_schema(node)
  indent_const = self.class.const_get(:INDENT)
  preamble = format_preamble_remarks(node, indent(indent_const))

  schema_declarations = [
    *if node.constants&.length&.positive?
       [
         "CONSTANT",
         indent(node.constants.map { |x| format(x) }.join("\n")),
         [
           "END_CONSTANT",
           ";",
         ].join,
       ].join("\n")
     end,
    *if node.types&.length&.positive?
       node.types.map { |x| format(x) }
     end,
    *if node.entities&.length&.positive?
       node.entities.map { |x| format(x) }
     end,
    *if node.subtype_constraints&.length&.positive?
       node.subtype_constraints.map { |x| format(x) }
     end,
    *if node.functions&.length&.positive?
       node.functions.map { |x| format(x) }
     end,
    *if node.rules&.length&.positive?
       node.rules.map { |x| format(x) }
     end,
    *if node.procedures&.length&.positive?
       node.procedures.map { |x| format(x) }
     end,
  ]

  [
    format_declarations_schema_head(node),
    *if preamble && !preamble.empty?
       [
         "",
         preamble.rstrip,
         "",
       ]
     end,
    *if schema_declarations&.length&.positive?
       [
         "",
         schema_declarations.join("\n\n"),
         "",
       ]
     end,
    [
      "END_SCHEMA",
      ";",
    ].join,
  ].join("\n")
end

#format_declarations_schema_head(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 511

def format_declarations_schema_head(node)
  [
    [
      "SCHEMA",
      " ",
      node.id,
      *if node.version
         [
           " ",
           format(node.version),
         ].join
       end,
      ";",
    ].join,
    *if node.interfaces&.length&.positive?
       [
         "",
         node.interfaces.map { |x| format(x) }.join("\n"),
       ]
     end,
  ].join("\n")
end

#format_declarations_schema_version(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 592

def format_declarations_schema_version(node)
  [
    "'",
    node.value,
    "'",
  ].join
end

#format_declarations_subtype_constraint(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 600

def format_declarations_subtype_constraint(node)
  [
    [
      "SUBTYPE_CONSTRAINT",
      " ",
      node.id,
      " ",
      "FOR",
      " ",
      format(node.applies_to),
      ";",
    ].join,
    *if node.abstract
       indent([
         "ABSTRACT",
         " ",
         "SUPERTYPE",
         ";",
       ].join)
     end,
    *if node.total_over&.length&.positive?
       indent([
         "TOTAL_OVER",
         "(",
         node.total_over.map { |x| format(x) }.join(", "),
         ")",
         ";",
       ].join)
     end,
    *if node.supertype_expression
       indent([
         format(node.supertype_expression),
         ";",
       ].join)
     end,
    [
      "END_SUBTYPE_CONSTRAINT",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_type(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 643

def format_declarations_type(node)
  [
    [
      "TYPE",
      " ",
      node.id,
      " ",
      "=",
      " ",
      format(node.underlying_type),
      ";",
    ].join,
    *if node.where_rules&.length&.positive?
       [
         "WHERE",
         indent(node.where_rules.map { |x| format(x) }.join("\n")),
       ]
     end,
    [
      "END_TYPE",
      ";",
      format_end_scope_remark(node),
    ].join,
  ].join("\n")
end

#format_declarations_unique_rule(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 669

def format_declarations_unique_rule(node)
  [
    *if node.id
       [
         node.id,
         ":",
         " ",
       ].join
     end,
    Array(node.attributes).map { |x| format(x) }.join(", "),
    ";",
  ].join
end

#format_declarations_variable(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 683

def format_declarations_variable(node)
  [
    node.id,
    " ",
    ":",
    " ",
    format(node.type),
    *if node.expression
       [
         " ",
         ":=",
         " ",
         format(node.expression),
       ].join
     end,
    ";",
  ].join
end

#format_declarations_where_rule(node) ⇒ Object 



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# File 'lib/expressir/express/formatters/declarations_formatter.rb', line 702

def format_declarations_where_rule(node)
  [
    *if node.id
       [
         node.id,
         ":",
         " ",
       ].join
     end,
    format(node.expression),
    ";",
  ].join
end