Module: NamedImports

Defined in:
lib/named_imports.rb,
lib/named_imports/error.rb,
lib/named_imports/version.rb

Defined Under Namespace

Modules: Error

Constant Summary collapse

VERSION = 
"0.2.2"
@@sandboxes = 
{}

Class Method Summary collapse

Class Method Details

.from(raw_path, constant_names, context = Object) ⇒ Object 



10
11
12
13
14
15
 
# File 'lib/named_imports.rb', line 10

def from(raw_path, constant_names, context = Object)
  into_path, import_line = caller_path_and_line
  from_path = full_path_for_import(from_path: raw_path, into_path: into_path)
  sandbox = sandbox_eval(file_path: from_path)
  load_constants(constant_names, from_sandbox: sandbox, into_context: context)
end

.import(context = Object, &block) ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/named_imports.rb', line 17

def import(context = Object, &block)
  into_path, import_line = caller_path_and_line
  constant_names = []

  begin
    block.call
  rescue => e
    constant_name = constant_name_from_error(e)

    if constant_name.nil?
      raise NamedImports::Error::ImportBlockError.new(into_path, import_line, e)
    end

    if !constant_names.include?(constant_name)
      constant_names << constant_name
      context.const_set(constant_name, nil)
    end

    retry
  end

  constant_names
end

.make_named_imports_available(in_context: Object) ⇒ Object 



41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/named_imports.rb', line 41

def make_named_imports_available(in_context: Object)
  def_method = in_context == Object ? :define_method : :define_singleton_method

  in_context.send(def_method, :from) do |path, constants|
    NamedImports.from(path, constants, in_context)
  end

  in_context.send(def_method, :import) do |&block|
    NamedImports.import(in_context, &block)
  end
end