Class: Rails::Hyperdrive::Tools::LocateSource

Inherits:
Base
  • Object
show all
Defined in:
lib/rails/hyperdrive/tools/locate_source.rb

Class Method Summary collapse

Methods inherited from Base

respond_error, respond_json, respond_text, with_dev_guard

Class Method Details

.call(reference:, server_context: nil) ⇒ Object 



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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 17

def self.call(reference:, server_context: nil)
  with_dev_guard do
    resolve(reference.to_s.strip)
  end
end

.constantize(name) ⇒ Object 



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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 76

def self.constantize(name)
  if defined?(::ActiveSupport) && String.method_defined?(:constantize)
    name.constantize
  else
    name.split("::").inject(Object) { |m, c| m.const_get(c) }
  end
end

.instance_method_defined?(klass, method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 64

def self.instance_method_defined?(klass, method)
  sym = method.to_sym
  klass.instance_methods(true).include?(sym) ||
    klass.private_instance_methods(true).include?(sym)
end

.resolve(reference) ⇒ Object 



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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 23

def self.resolve(reference)
  if reference.start_with?("dep:")
    return resolve_gem(reference.sub(/\Adep:/, ""), reference)
  end

  if reference.include?("#")
    klass_name, method = reference.split("#", 2)
    klass = constantize(klass_name)
    unless instance_method_defined?(klass, method)
      return respond_error("could not resolve: #{reference}")
    end
    file, line = klass.instance_method(method.to_sym).source_location
    file ? respond_text("#{file}:#{line}") : respond_error("could not resolve: #{reference}")
  elsif reference.include?(".")
    klass_name, method = reference.split(".", 2)
    klass = constantize(klass_name)
    unless klass.respond_to?(method, true)
      return respond_error("could not resolve: #{reference}")
    end
    file, line = klass.method(method.to_sym).source_location
    file ? respond_text("#{file}:#{line}") : respond_error("could not resolve: #{reference}")
  else
    owner_name, const_name = split_const(reference)
    owner = constantize(owner_name)
    return respond_error("could not resolve: #{reference}") unless owner.respond_to?(:const_source_location)
    location = owner.const_source_location(const_name)
    location && location.first ? respond_text("#{location[0]}:#{location[1]}") : respond_error("could not resolve: #{reference}")
  end
rescue NameError
  respond_error("could not resolve: #{reference}")
end

.resolve_gem(name, reference) ⇒ Object 



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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 70

def self.resolve_gem(name, reference)
  spec = Gem::Specification.find_all_by_name(name).first
  return respond_error("could not resolve: #{reference}") unless spec
  respond_text(spec.full_gem_path)
end

.split_const(reference) ⇒ Object 



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# File 'lib/rails/hyperdrive/tools/locate_source.rb', line 55

def self.split_const(reference)
  if reference.include?("::")
    parts = reference.split("::")
    [parts[0..-2].join("::"), parts.last]
  else
    ["Object", reference]
  end
end