Class: RBS::Prototype::Runtime

Inherits:
Object
  • Object
show all
Defined in:
lib/rbs/prototype/runtime.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(patterns:, env:, merge:, owners_included: []) ⇒ Runtime

Returns a new instance of Runtime.



9
10
11
12
13
14
15
16
17
 
# File 'lib/rbs/prototype/runtime.rb', line 9

def initialize(patterns:, env:, merge:, owners_included: [])
  @patterns = patterns
  @decls = nil
  @env = env
  @merge = merge
  @owners_included = owners_included.map do |name|
    Object.const_get(name)
  end
end

Instance Attribute Details

#env ⇒ Object (readonly)

Returns the value of attribute env.



5
6
7
 
# File 'lib/rbs/prototype/runtime.rb', line 5

def env
  @env
end

#merge ⇒ Object (readonly)

Returns the value of attribute merge.



6
7
8
 
# File 'lib/rbs/prototype/runtime.rb', line 6

def merge
  @merge
end

#owners_included ⇒ Object (readonly)

Returns the value of attribute owners_included.



7
8
9
 
# File 'lib/rbs/prototype/runtime.rb', line 7

def owners_included
  @owners_included
end

#patterns ⇒ Object (readonly)

Returns the value of attribute patterns.



4
5
6
 
# File 'lib/rbs/prototype/runtime.rb', line 4

def patterns
  @patterns
end

Instance Method Details

#builder ⇒ Object 



29
30
31
 
# File 'lib/rbs/prototype/runtime.rb', line 29

def builder
  @builder ||= DefinitionBuilder.new(env: env)
end

#decls ⇒ Object 



37
38
39
40
41
42
43
44
45
46
47
48
49
50
 
# File 'lib/rbs/prototype/runtime.rb', line 37

def decls
  unless @decls
    @decls = []
    ObjectSpace.each_object(Module).select {|mod| target?(mod) }.sort_by(&:name).each do |mod|
      case mod
      when Class
        generate_class mod
      when Module
        generate_module mod
      end
    end
  end
  @decls
end

#each_mixin(mixins, *super_mixes) ⇒ Object 



62
63
64
65
66
67
68
69
 
# File 'lib/rbs/prototype/runtime.rb', line 62

def each_mixin(mixins, *super_mixes)
  supers = Set.new(super_mixes)
  mixins.each do |mix|
    unless supers.include?(mix)
      yield mix
    end
  end
end

#generate_class(mod) ⇒ Object 



305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
 
# File 'lib/rbs/prototype/runtime.rb', line 305

def generate_class(mod)
  type_name = to_type_name(mod.name)
  super_class = if mod.superclass == ::Object
                  nil
                else
                  AST::Declarations::Class::Super.new(name: to_type_name(mod.superclass.name), args: [])
                end

  decl = AST::Declarations::Class.new(
    name: type_name,
    type_params: AST::Declarations::ModuleTypeParams.empty,
    super_class: super_class,
    members: [],
    annotations: [],
    location: nil,
    comment: nil
  )

  each_mixin(mod.included_modules, *mod.superclass.included_modules, *mod.included_modules.flat_map(&:included_modules)) do |included_module|
    module_name = to_type_name(included_module.name)
    if module_name.namespace == type_name.namespace
      module_name = TypeName.new(name: module_name.name, namespace: Namespace.empty)
    end

    decl.members << AST::Members::Include.new(
      name: module_name,
      args: [],
      location: nil,
      comment: nil,
      annotations: []
    )
  end

  generate_methods(mod, type_name, decl.members)

  @decls << decl

  generate_constants mod
end

#generate_constants(mod) ⇒ Object 



279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
 
# File 'lib/rbs/prototype/runtime.rb', line 279

def generate_constants(mod)
  mod.constants(false).sort.each do |name|
    value = mod.const_get(name)

    next if value.is_a?(Class) || value.is_a?(Module)
    type = case value
           when true, false
             Types::Bases::Bool.new(location: nil)
           when nil
             Types::Optional.new(
               type: Types::Bases::Any.new(location: nil),
               location: nil
             )
           else
             Types::ClassInstance.new(name: to_type_name(value.class.to_s), args: [], location: nil)
           end

    @decls << AST::Declarations::Constant.new(
      name: "#{mod.to_s}::#{name}",
      type: type,
      location: nil,
      comment: nil
    )
  end
end

#generate_methods(mod, module_name, members) ⇒ Object 



180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
 
# File 'lib/rbs/prototype/runtime.rb', line 180

def generate_methods(mod, module_name, members)
  mod.singleton_methods.select {|name| target_method?(mod, singleton: name) }.sort.each do |name|
    method = mod.singleton_class.instance_method(name)

    if method.name == method.original_name
      merge_rbs(module_name, members, singleton: name) do
        RBS.logger.info "missing #{module_name}.#{name} #{method.source_location}"

        members << AST::Members::MethodDefinition.new(
          name: method.name,
          types: [method_type(method)],
          kind: :singleton,
          location: nil,
          comment: nil,
          annotations: [],
          attributes: []
        )
      end
    else
      members << AST::Members::Alias.new(
        new_name: method.name,
        old_name: method.original_name,
        kind: :singleton,
        location: nil,
        comment: nil,
        annotations: [],
        )
    end
  end

  public_instance_methods = mod.public_instance_methods.select {|name| target_method?(mod, instance: name) }
  unless public_instance_methods.empty?
    members << AST::Members::Public.new(location: nil)

    public_instance_methods.sort.each do |name|
      method = mod.instance_method(name)

      if method.name == method.original_name
        merge_rbs(module_name, members, instance: name) do
          RBS.logger.info "missing #{module_name}##{name} #{method.source_location}"

          members << AST::Members::MethodDefinition.new(
            name: method.name,
            types: [method_type(method)],
            kind: :instance,
            location: nil,
            comment: nil,
            annotations: [],
            attributes: []
          )
        end
      else
        members << AST::Members::Alias.new(
          new_name: method.name,
          old_name: method.original_name,
          kind: :instance,
          location: nil,
          comment: nil,
          annotations: [],
          )
      end
    end
  end

  private_instance_methods = mod.private_instance_methods.select {|name| target_method?(mod, instance: name) }
  unless private_instance_methods.empty?
    members << AST::Members::Private.new(location: nil)

    private_instance_methods.sort.each do |name|
      method = mod.instance_method(name)

      if method.name == method.original_name
        merge_rbs(module_name, members, instance: name) do
          RBS.logger.info "missing #{module_name}##{name} #{method.source_location}"

          members << AST::Members::MethodDefinition.new(
            name: method.name,
            types: [method_type(method)],
            kind: :instance,
            location: nil,
            comment: nil,
            annotations: [],
            attributes: []
          )
        end
      else
        members << AST::Members::Alias.new(
          new_name: method.name,
          old_name: method.original_name,
          kind: :instance,
          location: nil,
          comment: nil,
          annotations: [],
          )
      end
    end
  end
end

#generate_module(mod) ⇒ Object 



345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
 
# File 'lib/rbs/prototype/runtime.rb', line 345

def generate_module(mod)
  type_name = to_type_name(mod.name)

  decl = AST::Declarations::Module.new(
    name: type_name,
    type_params: AST::Declarations::ModuleTypeParams.empty,
    self_type: nil,
    members: [],
    annotations: [],
    location: nil,
    comment: nil
  )

  each_mixin(mod.included_modules, *mod.included_modules.flat_map(&:included_modules), namespace: type_name.namespace) do |included_module|
    module_name = to_type_name(included_module.name)
    if module_name.namespace == type_name.namespace
      module_name = TypeName.new(name: module_name.name, namespace: Namespace.empty)
    end

    decl.members << AST::Members::Include.new(
      name: module_name,
      args: [],
      location: nil,
      comment: nil,
      annotations: []
    )
  end

  generate_methods(mod, type_name, decl.members)

  @decls << decl

  generate_constants mod
end

#merge_rbs(module_name, members, instance: nil, singleton: nil) ⇒ Object 



129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
 
# File 'lib/rbs/prototype/runtime.rb', line 129

def merge_rbs(module_name, members, instance: nil, singleton: nil)
  if merge
    if env.class?(module_name.absolute!)
      case
      when instance
        method = builder.build_instance(module_name.absolute!).methods[instance]
        method_name = instance
        kind = :instance
      when singleton
        method = builder.build_singleton(module_name.absolute!).methods[singleton]
        method_name = singleton
        kind = :singleton
      end

      if method
        members << AST::Members::MethodDefinition.new(
          name: method_name,
          types: method.method_types.map {|type|
            type.update.tap do |ty|
              def ty.to_s
                location.source
              end
            end
          },
          kind: kind,
          location: nil,
          comment: method.comment,
          annotations: method.annotations,
          attributes: method.attributes
        )
        return
      end
    end

    yield
  else
    yield
  end
end

#method_type(method) ⇒ Object 



71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
 
# File 'lib/rbs/prototype/runtime.rb', line 71

def method_type(method)
  untyped = Types::Bases::Any.new(location: nil)

  required_positionals = []
  optional_positionals = []
  rest = nil
  trailing_positionals = []
  required_keywords = {}
  optional_keywords = {}
  rest_keywords = nil

  requireds = required_positionals

  block = nil

  method.parameters.each do |kind, name|
    case kind
    when :req
      requireds << Types::Function::Param.new(name: name, type: untyped)
    when :opt
      requireds = trailing_positionals
      optional_positionals << Types::Function::Param.new(name: name, type: untyped)
    when :rest
      requireds = trailing_positionals
      rest = Types::Function::Param.new(name: name, type: untyped)
    when :keyreq
      required_keywords[name] = Types::Function::Param.new(name: nil, type: untyped)
    when :key
      optional_keywords[name] = Types::Function::Param.new(name: nil, type: untyped)
    when :keyrest
      rest_keywords = Types::Function::Param.new(name: nil, type: untyped)
    when :block
      block = MethodType::Block.new(
        type: Types::Function.empty(untyped).update(rest_positionals: Types::Function::Param.new(name: nil, type: untyped)),
        required: true
      )
    end
  end

  method_type = Types::Function.new(
    required_positionals: required_positionals,
    optional_positionals: optional_positionals,
    rest_positionals: rest,
    trailing_positionals: trailing_positionals,
    required_keywords: required_keywords,
    optional_keywords: optional_keywords,
    rest_keywords: rest_keywords,
    return_type: untyped
  )

  MethodType.new(
    location: nil,
    type_params: [],
    type: method_type,
    block: block
  )
end

#parse(file) ⇒ Object 



33
34
35
 
# File 'lib/rbs/prototype/runtime.rb', line 33

def parse(file)
  require file
end

#target?(const) ⇒ Boolean

Returns:

  • (Boolean) 


19
20
21
22
23
24
25
26
27
 
# File 'lib/rbs/prototype/runtime.rb', line 19

def target?(const)
  patterns.any? do |pattern|
    if pattern.end_with?("*")
      (const.name || "").start_with?(pattern.chop)
    else
      const.name == pattern
    end
  end
end

#target_method?(mod, instance: nil, singleton: nil) ⇒ Boolean

Returns:

  • (Boolean) 


169
170
171
172
173
174
175
176
177
178
 
# File 'lib/rbs/prototype/runtime.rb', line 169

def target_method?(mod, instance: nil, singleton: nil)
  case
  when instance
    method = mod.instance_method(instance)
    method.owner == mod || owners_included.any? {|m| method.owner == m }
  when singleton
    method = mod.singleton_class.instance_method(singleton)
    method.owner == mod.singleton_class || owners_included.any? {|m| method.owner == m.singleton_class }
  end
end

#to_type_name(name) ⇒ Object 



52
53
54
55
56
57
58
59
60
 
# File 'lib/rbs/prototype/runtime.rb', line 52

def to_type_name(name)
  *prefix, last = name.split(/::/)

  if prefix.empty?
    TypeName.new(name: last.to_sym, namespace: Namespace.empty)
  else
    TypeName.new(name: last.to_sym, namespace: Namespace.parse(prefix.join("::")))
  end
end