Class: SyntaxTree::YARV::DefineSMethod

Inherits:
Object
  • Object
show all
Defined in:
lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

definesmethod defines a method on the singleton class of the current value of self. It accepts two arguments. The first is the name of the method being defined. The second is the instruction sequence representing the body of the method. It pops the object off the stack that the method should be defined on.

### Usage

~~~ruby def self.value = “value” ~~~

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method_name, method_iseq) ⇒ DefineSMethod

Returns a new instance of DefineSMethod.



1156
1157
1158
1159
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1156

def initialize(method_name, method_iseq)
  @method_name = method_name
  @method_iseq = method_iseq
end

Instance Attribute Details

#method_iseq ⇒ Object (readonly)

Returns the value of attribute method_iseq.



1154
1155
1156
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1154

def method_iseq
  @method_iseq
end

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



1154
1155
1156
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1154

def method_name
  @method_name
end

Instance Method Details

#==(other) ⇒ Object 



1177
1178
1179
1180
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1177

def ==(other)
  other.is_a?(DefineSMethod) && other.method_name == method_name &&
    other.method_iseq == method_iseq
end

#call(vm) ⇒ Object 



1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1198

def call(vm)
  name = method_name
  nesting = vm.frame.nesting
  iseq = method_iseq

  vm
    .frame
    ._self
    .__send__(:define_singleton_method, name) do |*args, **kwargs, &block|
      vm.run_method_frame(
        name,
        nesting,
        iseq,
        self,
        *args,
        **kwargs,
        &block
      )
    end
end

#canonical ⇒ Object 



1194
1195
1196
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1194

def canonical
  self
end

#deconstruct_keys(_keys) ⇒ Object 



1173
1174
1175
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1173

def deconstruct_keys(_keys)
  { method_name: method_name, method_iseq: method_iseq }
end

#disasm(fmt) ⇒ Object 



1161
1162
1163
1164
1165
1166
1167
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1161

def disasm(fmt)
  fmt.enqueue(method_iseq)
  fmt.instruction(
    "definesmethod",
    [fmt.object(method_name), method_iseq.name]
  )
end

#length ⇒ Object 



1182
1183
1184
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1182

def length
  3
end

#pops ⇒ Object 



1186
1187
1188
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1186

def pops
  1
end

#pushes ⇒ Object 



1190
1191
1192
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1190

def pushes
  0
end

#to_a(_iseq) ⇒ Object 



1169
1170
1171
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 1169

def to_a(_iseq)
  [:definesmethod, method_name, method_iseq.to_a]
end