Class: Puppet::Pops::Types::TypeParser Private

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/pops/types/type_parser.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TypeParser

Returns a new instance of TypeParser.



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# File 'lib/puppet/pops/types/type_parser.rb', line 16

def initialize
  @parser = Parser::Parser.new
  @type_transformer = Visitor.new(nil, 'interpret', 1, 1)
end

Class Method Details

.singleton ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 11

def self.singleton
  @singleton ||= TypeParser.new
end

.type_map ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 161

def self.type_map
  @type_map ||= {
      'integer'      => TypeFactory.integer,
      'float'        => TypeFactory.float,
      'numeric'      => TypeFactory.numeric,
      'init'         => TypeFactory.init,
      'iterable'     => TypeFactory.iterable,
      'iterator'     => TypeFactory.iterator,
      'string'       => TypeFactory.string,
      'binary'       => TypeFactory.binary,
      'sensitive'    => TypeFactory.sensitive,
      'enum'         => TypeFactory.enum,
      'boolean'      => TypeFactory.boolean,
      'pattern'      => TypeFactory.pattern,
      'regexp'       => TypeFactory.regexp,
      'array'        => TypeFactory.array_of_any,
      'hash'         => TypeFactory.hash_of_any,
      'class'        => TypeFactory.host_class,
      'resource'     => TypeFactory.resource,
      'collection'   => TypeFactory.collection,
      'scalar'       => TypeFactory.scalar,
      'scalardata'   => TypeFactory.scalar_data,
      'catalogentry' => TypeFactory.catalog_entry,
      'undef'        => TypeFactory.undef,
      'notundef'     => TypeFactory.not_undef,
      'default'      => TypeFactory.default,
      'any'          => TypeFactory.any,
      'variant'      => TypeFactory.variant,
      'optional'     => TypeFactory.optional,
      'runtime'      => TypeFactory.runtime,
      'type'         => TypeFactory.type_type,
      'tuple'        => TypeFactory.tuple,
      'struct'       => TypeFactory.struct,
      'object'       => TypeFactory.object,
      'typealias'    => TypeFactory.type_alias,
      'typereference' => TypeFactory.type_reference,
      'typeset'      => TypeFactory.type_set,
       # A generic callable as opposed to one that does not accept arguments
      'callable'     => TypeFactory.all_callables,
      'semver'       => TypeFactory.sem_ver,
      'semverrange'  => TypeFactory.sem_ver_range,
      'timestamp'    => TypeFactory.timestamp,
      'timespan'     => TypeFactory.timespan
  }.freeze
end

Instance Method Details

#interpret(ast, context = nil) ⇒ PAnyType

Returns a specialization of the PAnyType representing the type.

Parameters:

Returns:

  • (PAnyType) —

    a specialization of the PAnyType representing the type.



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# File 'lib/puppet/pops/types/type_parser.rb', line 51

def interpret(ast, context = nil)
  result = @type_transformer.visit_this_1(self, ast, context)
  raise_invalid_type_specification_error(ast) unless result.is_a?(PAnyType)
  result
end

#interpret_AccessExpression(ast, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 228

def interpret_AccessExpression(ast, context)
  parameters = ast.keys.collect { |param| interpret_any(param, context) }

  qref = ast.left_expr
  raise_invalid_type_specification_error(ast) unless qref.is_a?(Model::QualifiedReference)

  type_name = qref.value
  case type_name
  when 'array'
    case parameters.size
    when 1
      type = assert_type(ast, parameters[0])
    when 2
      if parameters[0].is_a?(PAnyType)
        type = parameters[0]
        size_type =
          if parameters[1].is_a?(PIntegerType)
            size_type = parameters[1]
          else
            assert_range_parameter(ast, parameters[1])
            TypeFactory.range(parameters[1], :default)
          end
      else
        type = :default
        assert_range_parameter(ast, parameters[0])
        assert_range_parameter(ast, parameters[1])
        size_type = TypeFactory.range(parameters[0], parameters[1])
      end
    when 3
      type = assert_type(ast, parameters[0])
      assert_range_parameter(ast, parameters[1])
      assert_range_parameter(ast, parameters[2])
      size_type = TypeFactory.range(parameters[1], parameters[2])
    else
      raise_invalid_parameters_error('Array', '1 to 3', parameters.size)
    end
    TypeFactory.array_of(type, size_type)

  when 'hash'
    case parameters.size
    when 2
      if parameters[0].is_a?(PAnyType) && parameters[1].is_a?(PAnyType)
        TypeFactory.hash_of(parameters[1], parameters[0])
      else
        assert_range_parameter(ast, parameters[0])
        assert_range_parameter(ast, parameters[1])
        TypeFactory.hash_of(:default, :default, TypeFactory.range(parameters[0], parameters[1]))
      end
    when 3
      size_type =
        if parameters[2].is_a?(PIntegerType)
          parameters[2]
        else
          assert_range_parameter(ast, parameters[2])
          TypeFactory.range(parameters[2], :default)
        end
      assert_type(ast, parameters[0])
      assert_type(ast, parameters[1])
      TypeFactory.hash_of(parameters[1], parameters[0], size_type)
    when 4
      assert_range_parameter(ast, parameters[2])
      assert_range_parameter(ast, parameters[3])
      assert_type(ast, parameters[0])
      assert_type(ast, parameters[1])
      TypeFactory.hash_of(parameters[1], parameters[0], TypeFactory.range(parameters[2], parameters[3]))
    else
      raise_invalid_parameters_error('Hash', '2 to 4', parameters.size)
    end

  when 'collection'
    size_type = case parameters.size
      when 1
        if parameters[0].is_a?(PIntegerType)
          parameters[0]
        else
          assert_range_parameter(ast, parameters[0])
          TypeFactory.range(parameters[0], :default)
        end
      when 2
        assert_range_parameter(ast, parameters[0])
        assert_range_parameter(ast, parameters[1])
        TypeFactory.range(parameters[0], parameters[1])
      else
        raise_invalid_parameters_error('Collection', '1 to 2', parameters.size)
      end
    TypeFactory.collection(size_type)

  when 'class'
    if parameters.size != 1
      raise_invalid_parameters_error('Class', 1, parameters.size)
    end
    TypeFactory.host_class(parameters[0])

  when 'resource'
    type = parameters[0]
    if type.is_a?(PTypeReferenceType)
      type_str = type.type_string
      param_start = type_str.index('[')
      if param_start.nil?
        type = type_str
      else
        tps = interpret_any(@parser.parse_string(type_str[param_start..-1]).model, context)
        raise_invalid_parameters_error(type.to_s, '1', tps.size) unless tps.size == 1
        type = type_str[0..param_start-1]
        parameters = [type] + tps
      end
    end
    create_resource(type, parameters)

  when 'regexp'
    # 1 parameter being a string, or regular expression
    raise_invalid_parameters_error('Regexp', '1', parameters.size) unless parameters.size == 1
    TypeFactory.regexp(parameters[0])

  when 'enum'
    # 1..m parameters being strings
    raise_invalid_parameters_error('Enum', '1 or more', parameters.size) unless parameters.size >= 1
    parameters.each { |p|  raise Puppet::ParseError, 'Enum parameters must be identifiers or strings' unless p.is_a?(String) }
    TypeFactory.enum(*parameters)

  when 'pattern'
    # 1..m parameters being strings or regular expressions
    raise_invalid_parameters_error('Pattern', '1 or more', parameters.size) unless parameters.size >= 1
    TypeFactory.pattern(*parameters)

  when 'variant'
    # 1..m parameters being strings or regular expressions
    raise_invalid_parameters_error('Variant', '1 or more', parameters.size) unless parameters.size >= 1
    parameters.each { |p| assert_type(ast, p) }
    TypeFactory.variant(*parameters)

  when 'tuple'
    # 1..m parameters being types (last two optionally integer or literal default
    raise_invalid_parameters_error('Tuple', '1 or more', parameters.size) unless parameters.size >= 1
    length = parameters.size
    size_type = nil
    if TypeFactory.is_range_parameter?(parameters[-2])
      # min, max specification
      min = parameters[-2]
      min = (min == :default || min == 'default') ? 0 : min
      assert_range_parameter(ast, parameters[-1])
      max = parameters[-1]
      max = max == :default ? nil : max
      parameters = parameters[0, length-2]
      size_type = TypeFactory.range(min, max)
    elsif TypeFactory.is_range_parameter?(parameters[-1])
      min = parameters[-1]
      min = (min == :default || min == 'default') ? 0 : min
      max = nil
      parameters = parameters[0, length-1]
      size_type = TypeFactory.range(min, max)
    end
    TypeFactory.tuple(parameters, size_type)

  when 'callable'
    # 1..m parameters being types (last three optionally integer or literal default, and a callable)
    if parameters.size > 1 && parameters[0].is_a?(Array)
      raise_invalid_parameters_error('callable', '2 when first parameter is an array', parameters.size) unless parameters.size == 2
    end
    TypeFactory.callable(*parameters)

  when 'struct'
    # 1..m parameters being types (last two optionally integer or literal default
    raise_invalid_parameters_error('Struct', '1', parameters.size) unless parameters.size == 1
    h = parameters[0]
    raise_invalid_type_specification_error(ast) unless h.is_a?(Hash)
    TypeFactory.struct(h)

  when 'integer'
    if parameters.size == 1
      case parameters[0]
      when Integer
        TypeFactory.range(parameters[0], :default)
      when :default
        TypeFactory.integer # unbound
      end
    elsif parameters.size != 2
      raise_invalid_parameters_error('Integer', '1 or 2', parameters.size)
   else
     TypeFactory.range(parameters[0] == :default ? nil : parameters[0], parameters[1] == :default ? nil : parameters[1])
   end

  when 'object'
    raise_invalid_parameters_error('Object', 1, parameters.size) unless parameters.size == 1
    TypeFactory.object(parameters[0])

  when 'typeset'
    raise_invalid_parameters_error('Object', 1, parameters.size) unless parameters.size == 1
    TypeFactory.type_set(parameters[0])

  when 'init'
    assert_type(ast, parameters[0])
    TypeFactory.init(*parameters)

  when 'iterable'
    if parameters.size != 1
      raise_invalid_parameters_error('Iterable', 1, parameters.size)
    end
    assert_type(ast, parameters[0])
    TypeFactory.iterable(parameters[0])

  when 'iterator'
    if parameters.size != 1
      raise_invalid_parameters_error('Iterator', 1, parameters.size)
    end
    assert_type(ast, parameters[0])
    TypeFactory.iterator(parameters[0])

  when 'float'
    if parameters.size == 1
      case parameters[0]
      when Integer, Float
        TypeFactory.float_range(parameters[0], :default)
      when :default
        TypeFactory.float # unbound
      end
    elsif parameters.size != 2
      raise_invalid_parameters_error('Float', '1 or 2', parameters.size)
   else
     TypeFactory.float_range(parameters[0] == :default ? nil : parameters[0], parameters[1] == :default ? nil : parameters[1])
   end

  when 'string'
    size_type =
    case parameters.size
    when 1
      if parameters[0].is_a?(PIntegerType)
        parameters[0]
      else
        assert_range_parameter(ast, parameters[0])
        TypeFactory.range(parameters[0], :default)
      end
    when 2
      assert_range_parameter(ast, parameters[0])
      assert_range_parameter(ast, parameters[1])
      TypeFactory.range(parameters[0], parameters[1])
    else
      raise_invalid_parameters_error('String', '1 to 2', parameters.size)
    end
    TypeFactory.string(size_type)

  when 'sensitive'
    if parameters.size == 0
      TypeFactory.sensitive
    elsif parameters.size == 1
      param = parameters[0]
      assert_type(ast, param)
      TypeFactory.sensitive(param)
    else
      raise_invalid_parameters_error('Sensitive', '0 to 1', parameters.size)
    end

  when 'optional'
    if parameters.size != 1
      raise_invalid_parameters_error('Optional', 1, parameters.size)
    end
    param = parameters[0]
    assert_type(ast, param) unless param.is_a?(String)
    TypeFactory.optional(param)

  when 'any', 'data', 'catalogentry', 'boolean', 'scalar', 'undef', 'numeric', 'default', 'semverrange'
    raise_unparameterized_type_error(qref)

  when 'notundef'
    case parameters.size
    when 0
      TypeFactory.not_undef
    when 1
      param = parameters[0]
      assert_type(ast, param) unless param.is_a?(String)
      TypeFactory.not_undef(param)
    else
      raise_invalid_parameters_error("NotUndef", "0 to 1", parameters.size)
    end

  when 'type'
    if parameters.size != 1
      raise_invalid_parameters_error('Type', 1, parameters.size)
    end
    assert_type(ast, parameters[0])
    TypeFactory.type_type(parameters[0])

  when 'runtime'
    raise_invalid_parameters_error('Runtime', '2', parameters.size) unless parameters.size == 2
    TypeFactory.runtime(*parameters)

  when 'timespan'
    raise_invalid_parameters_error('Timespan', '0 to 2', parameters.size) unless parameters.size <= 2
    TypeFactory.timespan(*parameters)

  when 'timestamp'
    raise_invalid_parameters_error('Timestamp', '0 to 2', parameters.size) unless parameters.size <= 2
    TypeFactory.timestamp(*parameters)

  when 'semver'
    raise_invalid_parameters_error('SemVer', '1 or more', parameters.size) unless parameters.size >= 1
    TypeFactory.sem_ver(*parameters)

  else
    loader = loader_from_context(qref, context)
    type = nil
    unless loader.nil?
      type = loader.load(:type, type_name)
      type = type.resolve(loader) unless type.nil?
    end

    if type.nil?
      TypeFactory.type_reference(original_text_of(ast))
    elsif type.is_a?(PResourceType)
      raise_invalid_parameters_error(qref.cased_value, 1, parameters.size) unless parameters.size == 1
      TypeFactory.resource(type.type_name, parameters[0])
    else
      # Must be a type alias. They can't use parameters (yet)
      raise_unparameterized_type_error(qref)
    end
  end
end

#interpret_any(ast, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 58

def interpret_any(ast, context)
  @type_transformer.visit_this_1(self, ast, context)
end

#interpret_HeredocExpression(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 88

def interpret_HeredocExpression(o, context)
  interpret_any(o.text_expr, context)
end

#interpret_LambdaExpression(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 83

def interpret_LambdaExpression(o, context)
  o
end

#interpret_LiteralBoolean(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 102

def interpret_LiteralBoolean(o, context)
  o.value
end

#interpret_LiteralDefault(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 107

def interpret_LiteralDefault(o, context)
  :default
end

#interpret_LiteralFloat(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 112

def interpret_LiteralFloat(o, context)
  o.value
end

#interpret_LiteralHash(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 117

def interpret_LiteralHash(o, context)
  result = {}
  o.entries.each do |entry|
    result[@type_transformer.visit_this_1(self, entry.key, context)] = @type_transformer.visit_this_1(self, entry.value, context)
  end
  result
end

#interpret_LiteralInteger(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 126

def interpret_LiteralInteger(o, context)
  o.value
end

#interpret_LiteralList(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 131

def interpret_LiteralList(o, context)
  o.values.map { |value| @type_transformer.visit_this_1(self, value, context) }
end

#interpret_LiteralRegularExpression(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 136

def interpret_LiteralRegularExpression(o, context)
  o.value
end

#interpret_LiteralString(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 141

def interpret_LiteralString(o, context)
  o.value
end

#interpret_LiteralUndef(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 146

def interpret_LiteralUndef(o, context)
  nil
end

#interpret_Object(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 63

def interpret_Object(o, context)
  raise_invalid_type_specification_error(o)
end

#interpret_Program(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 68

def interpret_Program(o, context)
  interpret_any(o.body, context)
end

#interpret_QualifiedName(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 97

def interpret_QualifiedName(o, context)
  o.value
end

#interpret_QualifiedReference(name_ast, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 208

def interpret_QualifiedReference(name_ast, context)
  name = name_ast.value
  if found = self.class.type_map[name]
    found
  else
    loader = loader_from_context(name_ast, context)
    unless loader.nil?
      type = loader.load(:type, name)
      type = type.resolve(loader) unless type.nil?
    end
    type || TypeFactory.type_reference(name_ast.cased_value)
  end
end

#interpret_String(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 151

def interpret_String(o, context)
  o
end

#interpret_SubLocatedExpression(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 92

def interpret_SubLocatedExpression(o, context)
  interpret_any(o.expr, context)
end

#interpret_TypeAlias(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 73

def interpret_TypeAlias(o, context)
  Loader::TypeDefinitionInstantiator.create_type(o.name, o.type_expr, Pcore::RUNTIME_NAME_AUTHORITY).resolve(loader_from_context(o, context))
end

#interpret_TypeDefinition(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 78

def interpret_TypeDefinition(o, context)
  Loader::TypeDefinitionInstantiator.create_runtime_type(o)
end

#interpret_UnaryMinusExpression(o, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 156

def interpret_UnaryMinusExpression(o, context)
  -@type_transformer.visit_this_1(self, o.expr, context)
end

#loader_from_context(ast, context) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 223

def loader_from_context(ast, context)
  Adapters::LoaderAdapter.loader_for_model_object(ast, nil, context)
end

#parse(string, context = nil) ⇒ PAnyType

Produces a *puppet type* based on the given string.

Examples:

parser.parse('Integer')
parser.parse('Array[String]')
parser.parse('Hash[Integer, Array[String]]')

Parameters:

  • string (String) —

    a string with the type expressed in stringified form as produced by the types Puppet::Pops::Types::TypeParser.““#to_s method.

  • context (Loader::Loader) (defaults to: nil) —

    optional loader used as no adapted loader is found

Returns:

  • (PAnyType) —

    a specialization of the PAnyType representing the type.



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# File 'lib/puppet/pops/types/type_parser.rb', line 35

def parse(string, context = nil)
  model = @parser.parse_string(string)
  interpret(model.model.body, context)
end

#parse_literal(string, context = nil) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/types/type_parser.rb', line 41

def parse_literal(string, context = nil)
  factory = @parser.parse_string(string)
  interpret_any(factory.model.body, context)
end