Class: Puppet::Pops::Validation::Checker4_0 Private

Inherits:
Evaluator::LiteralEvaluator show all
Includes:
Evaluator::ExternalSyntaxSupport
Defined in:
lib/puppet/pops/validation/checker4_0.rb

Overview

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.

A Validator validates a model.

Validation is performed on each model element in isolation. Each method should validate the model element's state but not validate its referenced/contained elements except to check their validity in their respective role. The intent is to drive the validation with a tree iterator that visits all elements in a model.

TODO: Add validation of multiplicities - this is a general validation that can be checked for all

Model objects via their metamodel. (I.e an extra call to multiplicity check in polymorph check).
This is however mostly valuable when validating model to model transformations, and is therefore T.B.D

Direct Known Subclasses

TasksChecker

Constant Summary collapse

RESERVED_TYPE_NAMES =

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

{
  'type' => true,
  'any' => true,
  'unit' => true,
  'scalar' => true,
  'boolean' => true,
  'numeric' => true,
  'integer' => true,
  'float' => true,
  'collection' => true,
  'array' => true,
  'hash' => true,
  'tuple' => true,
  'struct' => true,
  'variant' => true,
  'optional' => true,
  'enum' => true,
  'regexp' => true,
  'pattern' => true,
  'runtime' => true,
}
FUTURE_RESERVED_WORDS =

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

{
  'plan' => true
}
NO_NAMESPACE =

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

:no_namespace
NO_PATH =

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

:no_path
BAD_MODULE_FILE =

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

:bad_module_file
RESERVED_PARAMETERS =

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

{
  'name' => true,
  'title' => true,
}

Constants inherited from Evaluator::LiteralEvaluator

Evaluator::LiteralEvaluator::COMMA_SEPARATOR

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Evaluator::ExternalSyntaxSupport

#assert_external_syntax, #checker_for_syntax, #lookup_keys_for_syntax

Methods inherited from Evaluator::LiteralEvaluator

#literal, #literal_ConcatenatedString, #literal_Factory, #literal_LiteralBoolean, #literal_LiteralDefault, #literal_LiteralHash, #literal_LiteralList, #literal_LiteralNumber, #literal_LiteralRegularExpression, #literal_LiteralString, #literal_LiteralUndef, #literal_Object, #literal_Program, #literal_QualifiedName

Constructor Details

#initialize(diagnostics_producer) ⇒ Checker4_0

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.

Initializes the validator with a diagnostics producer. This object must respond to `:will_accept?` and `:accept`.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 32

def initialize(diagnostics_producer)
  super()
  @@rvalue_visitor      ||= Visitor.new(nil, "rvalue", 0, 0)
  @@hostname_visitor    ||= Visitor.new(nil, "hostname", 1, 2)
  @@assignment_visitor  ||= Visitor.new(nil, "assign", 0, 1)
  @@query_visitor       ||= Visitor.new(nil, "query", 0, 0)
  @@relation_visitor    ||= Visitor.new(nil, "relation", 0, 0)
  @@idem_visitor        ||= Visitor.new(nil, "idem", 0, 0)

  @check_visitor = self.class.check_visitor
  @acceptor = diagnostics_producer

  # Use null migration checker unless given in context
  @migration_checker = (Puppet.lookup(:migration_checker) { Migration::MigrationChecker.new() })
end

Instance Attribute Details

#acceptor ⇒ Object (readonly)

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/validation/checker4_0.rb', line 20

def acceptor
  @acceptor
end

#migration_checker ⇒ Object (readonly)

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/validation/checker4_0.rb', line 21

def migration_checker
  @migration_checker
end

Class Method Details

.check_visitor ⇒ 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/validation/checker4_0.rb', line 23

def self.check_visitor
  # Class instance variable rather than Class variable because methods visited
  # may be overridden in subclass
  @check_visitor ||= Visitor.new(nil, 'check', 0, 0)
end

Instance Method Details

#assign(o, via_index = false) ⇒ 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.

Checks the LHS of an assignment (is it assignable?). If args is true, assignment via index is checked.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 123

def assign(o, via_index = false)
  @@assignment_visitor.visit_this_1(self, o, via_index)
end

#assign_AccessExpression(o, via_index) ⇒ 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/validation/checker4_0.rb', line 164

def assign_AccessExpression(o, via_index)
  # Are indexed assignments allowed at all ? $x[x] = '...'
  if acceptor.will_accept? Issues::ILLEGAL_INDEXED_ASSIGNMENT
    acceptor.accept(Issues::ILLEGAL_INDEXED_ASSIGNMENT, o)
  else
    # Then the left expression must be assignable-via-index
    assign(o.left_expr, true)
  end
end

#assign_LiteralList(o, via_index) ⇒ 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/validation/checker4_0.rb', line 174

def assign_LiteralList(o, via_index)
  o.values.each {|x| assign(x) }
end

#assign_Object(o, via_index) ⇒ 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/validation/checker4_0.rb', line 178

def assign_Object(o, via_index)
  # Can not assign to anything else (differentiate if this is via index or not)
  # i.e. 10 = 'hello' vs. 10['x'] = 'hello' (the root is reported as being in error in both cases)
  #
  acceptor.accept(via_index ? Issues::ILLEGAL_ASSIGNMENT_VIA_INDEX : Issues::ILLEGAL_ASSIGNMENT, o)
end

#assign_VariableExpression(o, via_index) ⇒ 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.

—ASSIGNMENT CHECKS


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 148

def assign_VariableExpression(o, via_index)
  varname_string = varname_to_s(o.expr)
  if varname_string =~ Patterns::NUMERIC_VAR_NAME
    acceptor.accept(Issues::ILLEGAL_NUMERIC_ASSIGNMENT, o, :varname => varname_string)
  end
  # Can not assign to something in another namespace (i.e. a '::' in the name is not legal)
  if acceptor.will_accept? Issues::CROSS_SCOPE_ASSIGNMENT
    if varname_string =~ /::/
      acceptor.accept(Issues::CROSS_SCOPE_ASSIGNMENT, o, :name => varname_string)
    end
  end

  # TODO: Could scan for reassignment of the same variable if done earlier in the same container
  #       Or if assigning to a parameter (more work).
end

#check(o) ⇒ 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.

Performs regular validity check


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 65

def check(o)
  @check_visitor.visit_this_0(self, o)
end

#check_AccessExpression(o) ⇒ 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/validation/checker4_0.rb', line 194

def check_AccessExpression(o)
  # Only min range is checked, all other checks are RT checks as they depend on the resulting type
  # of the LHS.
  if o.keys.size < 1
    acceptor.accept(Issues::MISSING_INDEX, o)
  end
end

#check_AssignmentExpression(o) ⇒ 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/validation/checker4_0.rb', line 202

def check_AssignmentExpression(o)
  case o.operator
  when '='
    assign(o.left_expr)
    rvalue(o.right_expr)
  when '+=', '-='
    acceptor.accept(Issues::APPENDS_DELETES_NO_LONGER_SUPPORTED, o, {:operator => o.operator})
  else
    acceptor.accept(Issues::UNSUPPORTED_OPERATOR, o, {:operator => o.operator})
  end
end

#check_AttributeOperation(o) ⇒ 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.

Checks that operation with :+> is contained in a ResourceOverride or Collector.

Parent of an AttributeOperation can be one of:

  • CollectExpression

  • ResourceOverride

  • ResourceBody (ILLEGAL this is a regular resource expression)

  • ResourceDefaults (ILLEGAL)


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 222

def check_AttributeOperation(o)
  if o.operator == '+>'
    # Append operator use is constrained
    p = container
    unless p.is_a?(Model::CollectExpression) || p.is_a?(Model::ResourceOverrideExpression)
      acceptor.accept(Issues::ILLEGAL_ATTRIBUTE_APPEND, o, {:name=>o.attribute_name, :parent=>p})
    end
  end
  rvalue(o.value_expr)
end

#check_AttributesOperation(o) ⇒ 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/validation/checker4_0.rb', line 233

def check_AttributesOperation(o)
  # Append operator use is constrained
  p = container
  case p
  when Model::AbstractResource
  when Model::CollectExpression
  when Model::CapabilityMapping
    acceptor.accept(Issues::UNSUPPORTED_OPERATOR_IN_CONTEXT, p, :operator=>'* =>')
  else
    # protect against just testing a snippet that has no parent, error message will be a bit strange
    # but it is not for a real program.
    parent2 = p.nil? ? o : container(-2)
    unless parent2.is_a?(Model::AbstractResource)
      acceptor.accept(Issues::UNSUPPORTED_OPERATOR_IN_CONTEXT, parent2, :operator=>'* =>')
    end
  end
  rvalue(o.expr)
end

#check_BinaryExpression(o) ⇒ 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/validation/checker4_0.rb', line 252

def check_BinaryExpression(o)
  rvalue(o.left_expr)
  rvalue(o.right_expr)
end

#check_BlockExpression(o) ⇒ 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/validation/checker4_0.rb', line 266

def check_BlockExpression(o)
  if resource_without_title?(o)
    acceptor.accept(Issues::RESOURCE_WITHOUT_TITLE, o, :name => o.statements[0].value)
  else
    o.statements[0..-2].each do |statement|
      if idem(statement)
        acceptor.accept(Issues::IDEM_EXPRESSION_NOT_LAST, statement)
        break # only flag the first
      end
    end
  end
end

#check_CallNamedFunctionExpression(o) ⇒ 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/validation/checker4_0.rb', line 279

def check_CallNamedFunctionExpression(o)
  functor = o.functor_expr
  if functor.is_a?(Model::QualifiedReference) ||
    functor.is_a?(Model::AccessExpression) && functor.left_expr.is_a?(Model::QualifiedReference)
    # ok (a call to a type)
    return nil
  end
  case functor
  when Model::QualifiedName
    # ok
    nil
  when Model::RenderStringExpression
    # helpful to point out this easy to make Epp error
    acceptor.accept(Issues::ILLEGAL_EPP_PARAMETERS, o)
  else
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, o.functor_expr, {:feature=>'function name', :container => o})
  end
end

#check_CapabilityMapping(o) ⇒ 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/validation/checker4_0.rb', line 298

def check_CapabilityMapping(o)
  ok =
  case o.component
  when Model::QualifiedReference
    name = o.component.cased_value
    acceptor.accept(Issues::ILLEGAL_CLASSREF, o.component, {:name=>name}) unless name =~ Patterns::CLASSREF_EXT
    true
  when Model::AccessExpression
    keys = o.component.keys
    expr = o.component.left_expr
    if expr.is_a?(Model::QualifiedReference) && keys.size == 1
      key = keys[0]
      key.is_a?(Model::LiteralString) || key.is_a?(Model::QualifiedName) || key.is_a?(Model::QualifiedReference)
    else
      false
    end
  else
    false
  end
  acceptor.accept(Issues::ILLEGAL_EXPRESSION, o.component, :feature=>'capability mapping', :container => o) unless ok

  if o.capability !~ Patterns::CLASSREF_EXT
    acceptor.accept(Issues::ILLEGAL_CLASSREF, o, {:name=>o.capability})
  end
end

#check_CaseExpression(o) ⇒ 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/validation/checker4_0.rb', line 346

def check_CaseExpression(o)
  rvalue(o.test)
  # There can only be one LiteralDefault case option value
  found_default = false
  o.options.each do |option|
    option.values.each do |value|
      if value.is_a?(Model::LiteralDefault)
        # Flag the second default as 'unreachable'
        acceptor.accept(Issues::DUPLICATE_DEFAULT, value, :container => o) if found_default
        found_default = true
      end
    end
  end
end

#check_CaseOption(o) ⇒ 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/validation/checker4_0.rb', line 361

def check_CaseOption(o)
  o.values.each { |v| rvalue(v) }
end

#check_CollectExpression(o) ⇒ 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/validation/checker4_0.rb', line 365

def check_CollectExpression(o)
  unless o.type_expr.is_a? Model::QualifiedReference
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, o.type_expr, :feature=> 'type name', :container => o)
  end
end

#check_EppExpression(o) ⇒ 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/validation/checker4_0.rb', line 324

def check_EppExpression(o)
  p = container
  if p.is_a?(Model::LambdaExpression)
    internal_check_no_capture(p, o)
    internal_check_parameter_name_uniqueness(p)
  end
end

#check_Factory(o) ⇒ 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/validation/checker4_0.rb', line 190

def check_Factory(o)
  check(o.model)
end

#check_FunctionDefinition(o) ⇒ 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/validation/checker4_0.rb', line 478

def check_FunctionDefinition(o)
  check_NamedDefinition(o)
  internal_check_return_type(o)
  internal_check_parameter_name_uniqueness(o)
end

#check_HeredocExpression(o) ⇒ 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/validation/checker4_0.rb', line 332

def check_HeredocExpression(o)
  # Only syntax check static text in heredoc during validation - dynamic text is validated by the evaluator.
  expr = o.text_expr
  if expr.is_a?(Model::LiteralString)
    assert_external_syntax(nil, expr.value, o.syntax, o.text_expr)
  end
end

#check_HostClassDefinition(o) ⇒ 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/validation/checker4_0.rb', line 484

def check_HostClassDefinition(o)
  check_NamedDefinition(o)
  internal_check_no_capture(o)
  internal_check_parameter_name_uniqueness(o)
  internal_check_reserved_params(o)
  internal_check_no_idem_last(o)
end

#check_IfExpression(o) ⇒ 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/validation/checker4_0.rb', line 693

def check_IfExpression(o)
  rvalue(o.test)
end

#check_KeyedEntry(o) ⇒ 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/validation/checker4_0.rb', line 697

def check_KeyedEntry(o)
  rvalue(o.key)
  rvalue(o.value)
  # In case there are additional things to forbid than non-rvalues
  # acceptor.accept(Issues::ILLEGAL_EXPRESSION, o.key, :feature => 'hash key', :container => container)
end

#check_LambdaExpression(o) ⇒ 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/validation/checker4_0.rb', line 704

def check_LambdaExpression(o)
  internal_check_capture_last(o)
  internal_check_return_type(o)
end

#check_LiteralHash(o) ⇒ 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/validation/checker4_0.rb', line 720

def check_LiteralHash(o)
  # the keys of a literal hash may be non-literal expressions. They cannot be checked.
  unique = Set.new
  o.entries.each do |entry|
    catch(:not_literal) do
      literal_key = literal(entry.key)
      acceptor.accept(Issues::DUPLICATE_KEY, entry, {:key => literal_key}) if unique.add?(literal_key).nil?
    end
  end
end

#check_LiteralInteger(o) ⇒ 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/validation/checker4_0.rb', line 713

def check_LiteralInteger(o)
  v = o.value
  if v < MIN_INTEGER || v > MAX_INTEGER
    acceptor.accept(Issues::NUMERIC_OVERFLOW, o, {:value => v})
  end
end

#check_LiteralList(o) ⇒ 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/validation/checker4_0.rb', line 709

def check_LiteralList(o)
  o.values.each {|v| rvalue(v) }
end

#check_MethodCallExpression(o) ⇒ 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/validation/checker4_0.rb', line 340

def check_MethodCallExpression(o)
  unless o.functor_expr.is_a? Model::QualifiedName
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, o.functor_expr, :feature => 'function name', :container => o)
  end
end

#check_NamedAccessExpression(o) ⇒ 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.

Only used for function names, grammar should not be able to produce something faulty, but check anyway if model is created programmatically (it will fail in transformation to AST for sure).


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 373

def check_NamedAccessExpression(o)
  name = o.right_expr
  unless name.is_a? Model::QualifiedName
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, name, :feature=> 'function name', :container => container)
  end
end

#check_NamedDefinition(o) ⇒ 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.

for 'class', 'define', and function


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 407

def check_NamedDefinition(o)
  top(o)
  if o.name !~ Patterns::CLASSREF_DECL
    acceptor.accept(Issues::ILLEGAL_DEFINITION_NAME, o, {:name=>o.name})
  end

  internal_check_file_namespace(o)
  internal_check_reserved_type_name(o, o.name)
  internal_check_future_reserved_word(o, o.name)
end

#check_NodeDefinition(o) ⇒ 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/validation/checker4_0.rb', line 731

def check_NodeDefinition(o)
  # Check that hostnames are valid hostnames (or regular expressions)
  hostname(o.host_matches, o)
  top(o)
  violator = ends_with_idem(o.body)
  if violator
    acceptor.accept(Issues::IDEM_NOT_ALLOWED_LAST, violator, {:container => o}) unless resource_without_title?(violator)
  end
  unless o.parent.nil?
    acceptor.accept(Issues::ILLEGAL_NODE_INHERITANCE, o.parent)
  end
end

#check_Object(o) ⇒ 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.

—CHECKS


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 187

def check_Object(o)
end

#check_Parameter(o) ⇒ 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/validation/checker4_0.rb', line 773

def check_Parameter(o)
  if o.name =~ /^(?:0x)?[0-9]+$/
    acceptor.accept(Issues::ILLEGAL_NUMERIC_PARAMETER, o, :name => o.name)
  end

  unless o.name =~ Patterns::PARAM_NAME
    acceptor.accept(Issues::ILLEGAL_PARAM_NAME, o, :name => o.name)
  end
  return unless o.value

  internal_check_illegal_assignment(o.value)
end

#check_QualifiedName(o) ⇒ 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.

No checking takes place - all expressions using a QualifiedName need to check. This because the rules are slightly different depending on the container (A variable allows a numeric start, but not other names). This means that (if the lexer/parser so chooses) a QualifiedName can be anything when it represents a Bare Word and evaluates to a String.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 749

def check_QualifiedName(o)
end

#check_QualifiedReference(o) ⇒ 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.

Checks that the value is a valid UpperCaseWord (a CLASSREF), and optionally if it contains a hypen. DOH: QualifiedReferences are created with LOWER CASE NAMES at parse time


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 754

def check_QualifiedReference(o)
  # Is this a valid qualified name?
  if o.cased_value !~ Patterns::CLASSREF_EXT
    acceptor.accept(Issues::ILLEGAL_CLASSREF, o, {:name=>o.cased_value})
  end
end

#check_QueryExpression(o) ⇒ 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/validation/checker4_0.rb', line 761

def check_QueryExpression(o)
  query(o.expr) if o.expr  # is optional
end

#check_RelationshipExpression(o) ⇒ 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.

relationship_side: resource

| resourceref
| collection
| variable
| quotedtext
| selector
| casestatement
| hasharrayaccesses


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 805

def check_RelationshipExpression(o)
  relation(o.left_expr)
  relation(o.right_expr)
end

#check_ReservedWord(o) ⇒ 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/validation/checker4_0.rb', line 846

def check_ReservedWord(o)
  if o.future
    acceptor.accept(Issues::FUTURE_RESERVED_WORD, o, :word => o.word)
  else
    acceptor.accept(Issues::RESERVED_WORD, o, :word => o.word)
  end
end

#check_ResourceBody(o) ⇒ 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/validation/checker4_0.rb', line 821

def check_ResourceBody(o)
  seenUnfolding = false
  o.operations.each do |ao|
    if ao.is_a?(Model::AttributesOperation)
      if seenUnfolding
        acceptor.accept(Issues::MULTIPLE_ATTRIBUTES_UNFOLD, ao)
      else
        seenUnfolding = true
      end
    end
  end
end

#check_ResourceDefaultsExpression(o) ⇒ 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/validation/checker4_0.rb', line 834

def check_ResourceDefaultsExpression(o)
  if o.form != 'regular'
    acceptor.accept(Issues::NOT_VIRTUALIZEABLE, o)
  end
end

#check_ResourceExpression(o) ⇒ 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/validation/checker4_0.rb', line 810

def check_ResourceExpression(o)
  # The expression for type name cannot be statically checked - this is instead done at runtime
  # to enable better error message of the result of the expression rather than the static instruction.
  # (This can be revised as there are static constructs that are illegal, but require updating many
  # tests that expect the detailed reporting).
  type_name_expr = o.type_name
  if o.form && o.form != 'regular' && type_name_expr.is_a?(Model::QualifiedName) && type_name_expr.value == 'class'
    acceptor.accept(Issues::CLASS_NOT_VIRTUALIZABLE, o)
  end
end

#check_ResourceOverrideExpression(o) ⇒ 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/validation/checker4_0.rb', line 840

def check_ResourceOverrideExpression(o)
  if o.form != 'regular'
    acceptor.accept(Issues::NOT_VIRTUALIZEABLE, o)
  end
end

#check_ResourceTypeDefinition(o) ⇒ 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/validation/checker4_0.rb', line 492

def check_ResourceTypeDefinition(o)
  check_NamedDefinition(o)
  internal_check_no_capture(o)
  internal_check_parameter_name_uniqueness(o)
  internal_check_reserved_params(o)
  internal_check_no_idem_last(o)
end

#check_SelectorEntry(o) ⇒ 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/validation/checker4_0.rb', line 864

def check_SelectorEntry(o)
  rvalue(o.matching_expr)
end

#check_SelectorExpression(o) ⇒ 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/validation/checker4_0.rb', line 854

def check_SelectorExpression(o)
  rvalue(o.left_expr)
  # There can only be one LiteralDefault case option value
  defaults = o.selectors.select {|v| v.matching_expr.is_a?(Model::LiteralDefault) }
  unless defaults.size <= 1
    # Flag the second default as 'unreachable'
    acceptor.accept(Issues::DUPLICATE_DEFAULT, defaults[1].matching_expr, :container => o)
  end
end

#check_TypeAlias(o) ⇒ 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/validation/checker4_0.rb', line 418

def check_TypeAlias(o)
  top(o)
  if o.name !~ Patterns::CLASSREF_EXT_DECL
    acceptor.accept(Issues::ILLEGAL_DEFINITION_NAME, o, {:name=>o.name})
  end
  internal_check_reserved_type_name(o, o.name)
  internal_check_type_ref(o, o.type_expr)
end

#check_TypeDefinition(o) ⇒ 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/validation/checker4_0.rb', line 471

def check_TypeDefinition(o)
  top(o)
  internal_check_reserved_type_name(o, o.name)
  # TODO: Check TypeDefinition body. For now, just error out
  acceptor.accept(Issues::UNSUPPORTED_EXPRESSION, o)
end

#check_TypeMapping(o) ⇒ 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/validation/checker4_0.rb', line 427

def check_TypeMapping(o)
  top(o)
  lhs = o.type_expr
  lhs_type = 0 # Not Runtime
  if lhs.is_a?(Model::AccessExpression)
    left = lhs.left_expr
    if left.is_a?(Model::QualifiedReference) && left.cased_value == 'Runtime'
      lhs_type = 1 # Runtime
      keys = lhs.keys

      # Must be a literal string or pattern replacement
      lhs_type = 2 if keys.size == 2 && pattern_with_replacement?(keys[1])
    end
  end

  if lhs_type == 0
    # This is not a TypeMapping. Something other than Runtime[] on LHS
    acceptor.accept(Issues::UNSUPPORTED_EXPRESSION, o)
  else
    rhs = o.mapping_expr
    if pattern_with_replacement?(rhs)
      acceptor.accept(Issues::ILLEGAL_SINGLE_TYPE_MAPPING, o) if lhs_type == 1
    elsif type_ref?(rhs)
      acceptor.accept(Issues::ILLEGAL_REGEXP_TYPE_MAPPING, o) if lhs_type == 2
    else
      acceptor.accept(lhs_type == 1 ? Issues::ILLEGAL_SINGLE_TYPE_MAPPING : Issues::ILLEGAL_REGEXP_TYPE_MAPPING, o)
    end
  end
end

#check_UnaryExpression(o) ⇒ 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/validation/checker4_0.rb', line 868

def check_UnaryExpression(o)
  rvalue(o.expr)
end

#check_UnlessExpression(o) ⇒ 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/validation/checker4_0.rb', line 872

def check_UnlessExpression(o)
  rvalue(o.test)
  # TODO: Unless may not have an else part that is an IfExpression (grammar denies this though)
end

#check_VariableExpression(o) ⇒ 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.

Checks that variable is either strictly 0, or a non 0 starting decimal number, or a valid VAR_NAME


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 878

def check_VariableExpression(o)
  # The expression must be a qualified name or an integer
  name_expr = o.expr
  return if name_expr.is_a?(Model::LiteralInteger)
  if !name_expr.is_a?(Model::QualifiedName)
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, o, :feature => 'name', :container => o)
  else
    # name must be either a decimal string value, or a valid NAME
    name = o.expr.value
    if name[0,1] =~ /[0-9]/
      unless name =~ Patterns::NUMERIC_VAR_NAME
        acceptor.accept(Issues::ILLEGAL_NUMERIC_VAR_NAME, o, :name => name)
      end
    else
      unless name =~ Patterns::VAR_NAME
        acceptor.accept(Issues::ILLEGAL_VAR_NAME, o, :name => name)
      end
    end
  end
end

#container(index = -1)) ⇒ 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/validation/checker4_0.rb', line 60

def container(index = -1)
  @path[index]
end

#dir_to_names(relative_path) ⇒ 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/validation/checker4_0.rb', line 647

def dir_to_names(relative_path)
  # Downcasing here because check is case-insensitive
  path_components = relative_path.to_s.downcase.split(File::SEPARATOR)

  # Example definition dir: manifests in this path:
  # <module name>/manifests/<module subdir>/<classfile>.pp
  dir = path_components[1]

  # How can we get this result?
  # If it is not an initial manifest, it must come from a module,
  # and from the manifests dir there.  This may never get used...
  return BAD_MODULE_FILE unless dir == 'manifests' || dir == 'functions' || dir == 'types' || dir == 'plans'

  names = path_components[2 .. -2] # Directories inside module
  names.unshift(path_components[0]) # Name of the module itself

  # Do not include name of module init file at top level of module
  # e.g. <module name>/manifests/init.pp
  filename = path_components[-1]
  if !(path_components.length == 3 && filename == 'init.pp')
    names.push(filename[0 .. -4]) # Remove .pp from filename
  end

  names
end

#ends_with_idem(o) ⇒ 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.

Returns the last expression in a block, or the expression, if that expression is idem


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 137

def ends_with_idem(o)
  if o.is_a?(Model::BlockExpression)
    last = o.statements[-1]
    idem(last) ? last : nil
  else
    idem(o) ? o : nil
  end
end

#get_module_relative_path(file_path, modulepath_directories) ⇒ 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/validation/checker4_0.rb', line 632

def get_module_relative_path(file_path, modulepath_directories)
  clean_file = file_path.cleanpath
  parent_path = modulepath_directories.find { |path_dir| is_parent_dir_of(path_dir, clean_file) }
  return NO_PATH if parent_path.nil?

  file_path.relative_path_from(Pathname.new(parent_path))
end

#hostname(o, semantic) ⇒ 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.

Performs check if this is a vaid hostname expression


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 71

def hostname(o, semantic)
  @@hostname_visitor.visit_this_1(self, o, semantic)
end

#hostname_Array(o, semantic) ⇒ 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.

Transforms Array of host matching expressions into a (Ruby) array of AST::HostName


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 902

def hostname_Array(o, semantic)
  o.each {|x| hostname(x, semantic) }
end

#hostname_ConcatenatedString(o, semantic) ⇒ 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/validation/checker4_0.rb', line 920

def hostname_ConcatenatedString(o, semantic)
  # Puppet 3.1. only accepts a concatenated string without interpolated expressions
  the_expr = o.segments.index {|s| s.is_a?(Model::TextExpression) }
  if the_expr
    acceptor.accept(Issues::ILLEGAL_HOSTNAME_INTERPOLATION, o.segments[the_expr].expr)
  elsif o.segments.size() != 1
    # corner case, bad model, concatenation of several plain strings
    acceptor.accept(Issues::ILLEGAL_HOSTNAME_INTERPOLATION, o)
  else
    # corner case, may be ok, but lexer may have replaced with plain string, this is
    # here if it does not
    hostname_String(o.segments[0], o.segments[0])
  end
end

#hostname_LiteralDefault(o, semantic) ⇒ 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/validation/checker4_0.rb', line 947

def hostname_LiteralDefault(o, semantic)
  # always ok
end

#hostname_LiteralNumber(o, semantic) ⇒ 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/validation/checker4_0.rb', line 943

def hostname_LiteralNumber(o, semantic)
  # always ok
end

#hostname_LiteralRegularExpression(o, semantic) ⇒ 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/validation/checker4_0.rb', line 951

def hostname_LiteralRegularExpression(o, semantic)
  # always ok
end

#hostname_LiteralValue(o, semantic) ⇒ 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/validation/checker4_0.rb', line 916

def hostname_LiteralValue(o, semantic)
  hostname_String(o.value.to_s, o)
end

#hostname_Object(o, semantic) ⇒ 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/validation/checker4_0.rb', line 955

def hostname_Object(o, semantic)
  acceptor.accept(Issues::ILLEGAL_EXPRESSION, o, {:feature => 'hostname', :container => semantic})
end

#hostname_QualifiedName(o, semantic) ⇒ 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/validation/checker4_0.rb', line 935

def hostname_QualifiedName(o, semantic)
  hostname_String(o.value.to_s, o)
end

#hostname_QualifiedReference(o, semantic) ⇒ 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/validation/checker4_0.rb', line 939

def hostname_QualifiedReference(o, semantic)
  hostname_String(o.value.to_s, o)
end

#hostname_String(o, semantic) ⇒ 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/validation/checker4_0.rb', line 906

def hostname_String(o, semantic)
  # The 3.x checker only checks for illegal characters - if matching /[^-\w.]/ the name is invalid,
  # but this allows pathological names like "a..b......c", "----"
  # TODO: Investigate if more illegal hostnames should be flagged.
  #
  if o =~ Patterns::ILLEGAL_HOSTNAME_CHARS
    acceptor.accept(Issues::ILLEGAL_HOSTNAME_CHARS, semantic, :hostname => o)
  end
end

#idem(o) ⇒ Boolean

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.

Checks if the expression has side effect ('idem' is latin for 'the same', here meaning that the evaluation state is known to be unchanged after the expression has been evaluated). The result is not 100% authoritative for negative answers since analysis of function behavior is not possible.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 132

def idem(o)
  @@idem_visitor.visit_this_0(self, o)
end

#idem_AccessExpression(o) ⇒ 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/validation/checker4_0.rb', line 1044

def idem_AccessExpression(o)
  true
end

#idem_ApplyExpression(o) ⇒ 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.

An apply expression exists purely for the side effect of applying a catalog somewhere, so it always has side effects


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1109

def idem_ApplyExpression(o)
  false
end

#idem_AssignmentExpression(o) ⇒ 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/validation/checker4_0.rb', line 1061

def idem_AssignmentExpression(o)
  # Always side effect
  false
end

#idem_BinaryExpression(o) ⇒ 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/validation/checker4_0.rb', line 1048

def idem_BinaryExpression(o)
  true
end

#idem_BlockExpression(o) ⇒ 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/validation/checker4_0.rb', line 1084

def idem_BlockExpression(o)
  # productive if there is at least one productive expression
  ! o.statements.any? {|expr| !idem(expr) }
end

#idem_CaseExpression(o) ⇒ 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.

Case expression is idem, if test, and all options are idem


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1118

def idem_CaseExpression(o)
  return false if !idem(o.test)
  ! o.options.any? {|opt| !idem(opt) }
end

#idem_CaseOption(o) ⇒ 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.

An option is idem if values and the then_expression are idem


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1124

def idem_CaseOption(o)
  return false if o.values.any? { |value| !idem(value) }
  idem(o.then_expr)
end

#idem_ConcatenatedString(o) ⇒ 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.

Returns true even though there may be interpolated expressions that have side effect. Report as idem anyway, as it is very bad design to evaluate an interpolated string for its side effect only.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1092

def idem_ConcatenatedString(o)
  true
end

#idem_Factory(o) ⇒ 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/validation/checker4_0.rb', line 1040

def idem_Factory(o)
  idem(o.model)
end

#idem_HeredocExpression(o) ⇒ 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.

Heredoc is just a string, but may contain interpolated string (which may have side effects). This is still bad design and should be reported as idem.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1098

def idem_HeredocExpression(o)
  true
end

#idem_IfExpression(o) ⇒ 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/validation/checker4_0.rb', line 1113

def idem_IfExpression(o)
  [o.test, o.then_expr, o.else_expr].all? {|e| idem(e) }
end

#idem_Literal(o) ⇒ 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/validation/checker4_0.rb', line 1028

def idem_Literal(o)
  true
end

#idem_LiteralHash(o) ⇒ 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/validation/checker4_0.rb', line 1036

def idem_LiteralHash(o)
  true
end

#idem_LiteralList(o) ⇒ 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/validation/checker4_0.rb', line 1032

def idem_LiteralList(o)
  true
end

#idem_MatchExpression(o) ⇒ 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/validation/checker4_0.rb', line 1052

def idem_MatchExpression(o)
  false # can have side effect of setting $n match variables
end

#idem_NilClass(o) ⇒ 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/validation/checker4_0.rb', line 1024

def idem_NilClass(o)
  true
end

#idem_Nop(o) ⇒ 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/validation/checker4_0.rb', line 1020

def idem_Nop(o)
  true
end

#idem_Object(o) ⇒ 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.

–IDEM CHECK


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1016

def idem_Object(o)
  false
end

#idem_ParenthesizedExpression(o) ⇒ 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.

Allow (no-effect parentheses) to be used around a productive expression


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1072

def idem_ParenthesizedExpression(o)
  idem(o.expr)
end

#idem_RelationshipExpression(o) ⇒ 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/validation/checker4_0.rb', line 1056

def idem_RelationshipExpression(o)
  # Always side effect
  false
end

#idem_RenderExpression(o) ⇒ 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/validation/checker4_0.rb', line 1076

def idem_RenderExpression(o)
  false
end

#idem_RenderStringExpression(o) ⇒ 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/validation/checker4_0.rb', line 1080

def idem_RenderStringExpression(o)
  false
end

#idem_SelectorExpression(o) ⇒ 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.

May technically have side effects inside the Selector, but this is bad design - treat as idem


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1103

def idem_SelectorExpression(o)
  true
end

#idem_UnaryExpression(o) ⇒ 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.

Handles UnaryMinusExpression, NotExpression, VariableExpression


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1067

def idem_UnaryExpression(o)
  true
end

#initial_manifest?(path, manifest_setting) ⇒ Boolean

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/validation/checker4_0.rb', line 624

def initial_manifest?(path, manifest_setting)
  return false if manifest_setting.nil? || manifest_setting == :no_manifest

  string_path = path.to_s

  string_path == manifest_setting || string_path.start_with?(manifest_setting)
end

#internal_check_capture_last(o) ⇒ 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/validation/checker4_0.rb', line 521

def internal_check_capture_last(o)
  accepted_index = o.parameters.size() -1
  o.parameters.each_with_index do |p, index|
    if p.captures_rest && index != accepted_index
      acceptor.accept(Issues::CAPTURES_REST_NOT_LAST, p, {:param_name => p.name})
    end
  end
end

#internal_check_file_namespace(o) ⇒ 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/validation/checker4_0.rb', line 554

def internal_check_file_namespace(o)
  file = o.locator.file
  return if file.nil? || file == '' #e.g. puppet apply -e '...'

  file_namespace = namespace_for_file(file)
  return if file_namespace == NO_NAMESPACE

  # Downcasing here because check is case-insensitive
  if file_namespace == BAD_MODULE_FILE || !o.name.downcase.start_with?(file_namespace)
    acceptor.accept(Issues::ILLEGAL_DEFINITION_LOCATION, o, {:name => o.name, :file => file})
  end
end

#internal_check_future_reserved_word(o, name) ⇒ 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/validation/checker4_0.rb', line 544

def internal_check_future_reserved_word(o, name)
  if FUTURE_RESERVED_WORDS[name]
    acceptor.accept(Issues::FUTURE_RESERVED_WORD, o, {:word => name})
  end
end

#internal_check_illegal_assignment(o) ⇒ 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/validation/checker4_0.rb', line 786

def internal_check_illegal_assignment(o)
  if o.is_a?(Model::AssignmentExpression)
    acceptor.accept(Issues::ILLEGAL_ASSIGNMENT_CONTEXT, o)
  else
    # recursively check all contents unless it's a lambda expression. A lambda may contain
    # local assignments
    o._pcore_contents {|model| internal_check_illegal_assignment(model) } unless o.is_a?(Model::LambdaExpression)
  end
end

#internal_check_no_capture(o, container = o) ⇒ 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/validation/checker4_0.rb', line 530

def internal_check_no_capture(o, container = o)
  o.parameters.each do |p|
    if p.captures_rest
      acceptor.accept(Issues::CAPTURES_REST_NOT_SUPPORTED, p, {:container => container, :param_name => p.name})
    end
  end
end

#internal_check_no_idem_last(o) ⇒ 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/validation/checker4_0.rb', line 514

def internal_check_no_idem_last(o)
  violator = ends_with_idem(o.body)
  if violator
    acceptor.accept(Issues::IDEM_NOT_ALLOWED_LAST, violator, {:container => o}) unless resource_without_title?(violator)
  end
end

#internal_check_parameter_name_uniqueness(o) ⇒ 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/validation/checker4_0.rb', line 686

def internal_check_parameter_name_uniqueness(o)
  unique = Set.new
  o.parameters.each do |p|
    acceptor.accept(Issues::DUPLICATE_PARAMETER, p, {:param_name => p.name}) unless unique.add?(p.name)
  end
end

#internal_check_reserved_params(o) ⇒ 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/validation/checker4_0.rb', line 678

def internal_check_reserved_params(o)
  o.parameters.each do |p|
    if RESERVED_PARAMETERS[p.name]
      acceptor.accept(Issues::RESERVED_PARAMETER, p, {:container => o, :param_name => p.name})
    end
  end
end

#internal_check_reserved_type_name(o, name) ⇒ 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/validation/checker4_0.rb', line 538

def internal_check_reserved_type_name(o, name)
  if RESERVED_TYPE_NAMES[name]
    acceptor.accept(Issues::RESERVED_TYPE_NAME, o, {:name => name})
  end
end

#internal_check_return_type(o) ⇒ 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/validation/checker4_0.rb', line 500

def internal_check_return_type(o)
  r = o.return_type
  internal_check_type_ref(o, r) unless r.nil?
end

#internal_check_top_construct_in_module(prog) ⇒ 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/validation/checker4_0.rb', line 567

def internal_check_top_construct_in_module(prog)
  return unless prog.is_a?(Model::Program) && !prog.body.nil?

  #Check that this is a module autoloaded file
  file = prog.locator.file
  return if file.nil?
  return if namespace_for_file(file) == NO_NAMESPACE

  body = prog.body
  return if prog.body.is_a?(Model::Nop) #Ignore empty or comment-only files

  if(body.is_a?(Model::BlockExpression))
    body.statements.each { |s| acceptor.accept(Issues::ILLEGAL_TOP_CONSTRUCT_LOCATION, s) unless valid_top_construct?(s) }
  else
    acceptor.accept(Issues::ILLEGAL_TOP_CONSTRUCT_LOCATION, body) unless valid_top_construct?(body)
  end
end

#internal_check_type_ref(o, r) ⇒ 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/validation/checker4_0.rb', line 505

def internal_check_type_ref(o, r)
  n = r.is_a?(Model::AccessExpression) ? r.left_expr : r
  if n.is_a? Model::QualifiedReference
    internal_check_future_reserved_word(r, n.value)
  else
    acceptor.accept(Issues::ILLEGAL_EXPRESSION, r, :feature => 'a type reference', :container => o)
  end
end

#is_parent_dir_of(parent_dir, child_dir) ⇒ 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/validation/checker4_0.rb', line 640

def is_parent_dir_of(parent_dir, child_dir)
  parent_dir_path = Pathname.new(parent_dir)
  clean_parent = parent_dir_path.cleanpath.to_s + File::SEPARATOR

  return child_dir.to_s.start_with?(clean_parent)
end

#namespace_for_file(file) ⇒ 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/validation/checker4_0.rb', line 594

def namespace_for_file(file)
  env = Puppet.lookup(:current_environment)
  return NO_NAMESPACE if env.nil?

  Puppet::Util::FileNamespaceAdapter.adapt(env) do |adapter|
    adapter.file_to_namespace ||= {}

    file_namespace = adapter.file_to_namespace[file]
    return file_namespace unless file_namespace.nil? # No cache entry, so we do the calculation

    path = Pathname.new(file)

    return adapter.file_to_namespace[file] = NO_NAMESPACE if path.extname != ".pp"

    path = path.expand_path

    return adapter.file_to_namespace[file] = NO_NAMESPACE if initial_manifest?(path, env.manifest)

    #All auto-loaded files from modules come from a module search path dir
    relative_path = get_module_relative_path(path, env.full_modulepath)

    return adapter.file_to_namespace[file] = NO_NAMESPACE if relative_path == NO_PATH

    #If a file comes from a module, but isn't in the right place, always error
    names = dir_to_names(relative_path)

    return adapter.file_to_namespace[file] = (names == BAD_MODULE_FILE ? BAD_MODULE_FILE : names.join("::").freeze)
  end
end

#pattern_with_replacement?(o) ⇒ Boolean

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/validation/checker4_0.rb', line 457

def pattern_with_replacement?(o)
  if o.is_a?(Model::LiteralList)
    v = o.values
    v.size == 2 && v[0].is_a?(Model::LiteralRegularExpression) && v[1].is_a?(Model::LiteralString)
  else
    false
  end
end

#query(o) ⇒ 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.

Performs check if this is valid as a query


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 76

def query(o)
  @@query_visitor.visit_this_0(self, o)
end

#query_BooleanExpression(o) ⇒ 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.

Allows AND, OR, and checks if left/right are allowed in query.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 973

def query_BooleanExpression(o)
  query o.left_expr
  query o.right_expr
end

#query_ComparisonExpression(o) ⇒ 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.

Puppet AST only allows == and !=


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 968

def query_ComparisonExpression(o)
  acceptor.accept(Issues::ILLEGAL_QUERY_EXPRESSION, o) unless ['==', '!='].include? o.operator
end

#query_LiteralBoolean(o) ⇒ 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/validation/checker4_0.rb', line 990

def query_LiteralBoolean(o); end

#query_LiteralNumber(o) ⇒ 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/validation/checker4_0.rb', line 986

def query_LiteralNumber(o); end

#query_LiteralString(o) ⇒ 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/validation/checker4_0.rb', line 988

def query_LiteralString(o); end

#query_Object(o) ⇒ 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.

Anything not explicitly allowed is flagged as error.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 962

def query_Object(o)
  acceptor.accept(Issues::ILLEGAL_QUERY_EXPRESSION, o)
end

#query_ParenthesizedExpression(o) ⇒ 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/validation/checker4_0.rb', line 978

def query_ParenthesizedExpression(o)
  query(o.expr)
end

#query_QualifiedName(o) ⇒ 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/validation/checker4_0.rb', line 984

def query_QualifiedName(o); end

#query_VariableExpression(o) ⇒ 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/validation/checker4_0.rb', line 982

def query_VariableExpression(o); end

#relation(o) ⇒ 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.

Performs check if this is valid as a relationship side


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 81

def relation(o)
  @@relation_visitor.visit_this_0(self, o)
end

#relation_CollectExpression(o) ⇒ 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/validation/checker4_0.rb', line 769

def relation_CollectExpression(o); end

#relation_Object(o) ⇒ 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/validation/checker4_0.rb', line 765

def relation_Object(o)
  rvalue(o)
end

#relation_RelationshipExpression(o) ⇒ 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/validation/checker4_0.rb', line 771

def relation_RelationshipExpression(o); end

#resource_without_title?(o) ⇒ Boolean

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/validation/checker4_0.rb', line 257

def resource_without_title?(o)
  if o.instance_of?(Model::BlockExpression)
    statements = o.statements
    statements.length == 2 && statements[0].instance_of?(Model::QualifiedName) && statements[1].instance_of?(Model::LiteralHash)
  else
    false
  end
end

#rvalue(o) ⇒ 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.

Performs check if this is valid as a rvalue


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 86

def rvalue(o)
  @@rvalue_visitor.visit_this_0(self, o)
end

#rvalue_CollectExpression(o) ⇒ 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/validation/checker4_0.rb', line 999

def rvalue_CollectExpression(o)
  acceptor.accept(Issues::NOT_RVALUE, o)
end

#rvalue_Definition(o) ⇒ 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/validation/checker4_0.rb', line 1003

def rvalue_Definition(o)
  acceptor.accept(Issues::NOT_RVALUE, o)
end

#rvalue_Expression(o) ⇒ 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.

By default, all expressions are reported as being rvalues Implement specific rvalue checks for those that are not.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 997

def rvalue_Expression(o); end

#rvalue_NodeDefinition(o) ⇒ 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/validation/checker4_0.rb', line 1007

def rvalue_NodeDefinition(o)
  acceptor.accept(Issues::NOT_RVALUE, o)
end

#rvalue_UnaryExpression(o) ⇒ 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/validation/checker4_0.rb', line 1011

def rvalue_UnaryExpression(o)
  rvalue o.expr
end

#top(definition, idx = -1)) ⇒ 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.

—TOP CHECK Performs check if this is valid as a container of a definition (class, define, node)


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 92

def top(definition, idx = -1)
  o = container(idx)
  idx -= 1
  case o
  when NilClass, Model::HostClassDefinition, Model::Program
    # ok, stop scanning parents
  when Model::BlockExpression
    c = container(idx)
    if !c.is_a?(Model::Program) &&
      (definition.is_a?(Model::FunctionDefinition) || definition.is_a?(Model::TypeAlias) || definition.is_a?(Model::TypeDefinition))

      # not ok. These can never be nested in a block
      acceptor.accept(Issues::NOT_ABSOLUTE_TOP_LEVEL, definition)
    else
      # ok, if this is a block representing the body of a class, or is top level
      top(definition, idx)
    end
  when Model::LambdaExpression
    # A LambdaExpression is a BlockExpression, and this check is needed to prevent the polymorph method for BlockExpression
    # to accept a lambda.
    # A lambda can not iteratively create classes, nodes or defines as the lambda does not have a closure.
    acceptor.accept(Issues::NOT_TOP_LEVEL, definition)
  else
    # fail, reached a container that is not top level
    acceptor.accept(Issues::NOT_TOP_LEVEL, definition)
  end
end

#type_ref?(o) ⇒ Boolean

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/validation/checker4_0.rb', line 466

def type_ref?(o)
  o = o.left_expr if o.is_a?(Model::AccessExpression)
  o.is_a?(Model::QualifiedReference)
end

#valid_top_construct?(o) ⇒ Boolean

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/validation/checker4_0.rb', line 585

def valid_top_construct?(o)
  o.is_a?(Model::Definition) && !o.is_a?(Model::NodeDefinition)
end

#validate(model) ⇒ 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.

Validates the entire model by visiting each model element and calling `check`. The result is collected (or acted on immediately) by the configured diagnostic provider/acceptor given when creating this Checker.


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 52

def validate(model)
  # tree iterate the model, and call check for each element
  @path = []
  check(model)
  internal_check_top_construct_in_module(model)
  model._pcore_all_contents(@path) { |element| check(element) }
end

#varname_to_s(o) ⇒ 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.

Produces string part of something named, or nil if not a QualifiedName or QualifiedReference


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# File 'lib/puppet/pops/validation/checker4_0.rb', line 1133

def varname_to_s(o)
  case o
  when Model::QualifiedName
    o.value
  when Model::QualifiedReference
    o.value
  else
    nil
  end
end