Class: Evilution::Mutator::Base

Inherits:
Prism::Visitor
  • Object
show all
Defined in:
lib/evilution/mutator/base.rb

Direct Known Subclasses

Operator::ArgumentNilSubstitution, Operator::ArgumentRemoval, Operator::ArithmeticReplacement, Operator::ArrayLiteral, Operator::BangMethod, Operator::BeginUnwrap, Operator::BitwiseComplement, Operator::BitwiseReplacement, Operator::BlockParamRemoval, Operator::BlockPassRemoval, Operator::BlockRemoval, Operator::BooleanLiteralReplacement, Operator::BooleanOperatorReplacement, Operator::BreakStatement, Operator::CaseWhen, Operator::ClassVariableWrite, Operator::CollectionReplacement, Operator::CollectionReturn, Operator::ComparisonReplacement, Operator::CompoundAssignment, Operator::ConditionalBranch, Operator::ConditionalFlip, Operator::ConditionalNegation, Operator::DefinedCheck, Operator::EnsureRemoval, Operator::EqualityToIdentity, Operator::ExplicitSuperMutation, Operator::FloatLiteral, Operator::GlobalVariableWrite, Operator::HashLiteral, Operator::IndexAssignmentRemoval, Operator::IndexToAt, Operator::IndexToDig, Operator::IndexToFetch, Operator::InlineRescue, Operator::InstanceVariableWrite, Operator::IntegerLiteral, Operator::KeywordArgument, Operator::LambdaBody, Operator::LocalVariableAssignment, Operator::LoopFlip, Operator::MethodBodyReplacement, Operator::MethodCallRemoval, Operator::MixinRemoval, Operator::MultipleAssignment, Operator::NegationInsertion, Operator::NextStatement, Operator::NilReplacement, Operator::PatternMatchingAlternative, Operator::PatternMatchingArray, Operator::PatternMatchingGuard, Operator::PredicateReplacement, Operator::RangeReplacement, Operator::ReceiverReplacement, Operator::RedoStatement, Operator::RegexCapture, Operator::RegexSimplification, Operator::RegexpMutation, Operator::RescueBodyReplacement, Operator::RescueRemoval, Operator::RetryRemoval, Operator::ReturnValueRemoval, Operator::ScalarReturn, Operator::SendMutation, Operator::SplatOperator, Operator::StatementDeletion, Operator::StringInterpolation, Operator::StringLiteral, Operator::SuperclassRemoval, Operator::SymbolLiteral, Operator::YieldStatement, Operator::ZsuperRemoval

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**_options) ⇒ Base

Returns a new instance of Base.



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# File 'lib/evilution/mutator/base.rb', line 10

def initialize(**_options)
  @mutations = []
  @subject = nil
  @file_source = nil
end

Instance Attribute Details

#mutations ⇒ Object (readonly)

Returns the value of attribute mutations.



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# File 'lib/evilution/mutator/base.rb', line 8

def mutations
  @mutations
end

Class Method Details

.clear_parse_cache! ⇒ Object 



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# File 'lib/evilution/mutator/base.rb', line 72

def self.clear_parse_cache!
  Evilution::Mutator::Base.instance_variable_set(:@parse_cache, {})
end

.operator_name ⇒ Object 



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# File 'lib/evilution/mutator/base.rb', line 52

def self.operator_name
  class_name = name || "anonymous"
  class_name.split("::").last
            .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
            .gsub(/([a-z\d])([A-Z])/, '\1_\2')
            .downcase
end

.parsed_tree_for(file_path, file_source) ⇒ Object 



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# File 'lib/evilution/mutator/base.rb', line 62

def self.parsed_tree_for(file_path, file_source)
  cache = Evilution::Mutator::Base.instance_variable_get(:@parse_cache)
  entry = cache[file_path]
  return entry[:tree] if entry && entry[:source_hash] == file_source.hash

  tree = Prism.parse(file_source).value
  cache[file_path] = { source_hash: file_source.hash, tree: tree }
  tree
end

Instance Method Details

#call(subject, filter: nil) ⇒ Object 



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# File 'lib/evilution/mutator/base.rb', line 16

def call(subject, filter: nil)
  @subject = subject
  @file_source = File.read(subject.file_path)
  @mutations = []
  @filter = filter
  visit(subject.node)
  @mutations
end