Class: Twostroke::Runtime::GlobalScope

Inherits:
Object
  • Object
show all
Defined in:
lib/twostroke/runtime/scope.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(vm, root_name = "window", root_object = nil) ⇒ GlobalScope

Returns a new instance of GlobalScope.



98
99
100
101
102
103
 
# File 'lib/twostroke/runtime/scope.rb', line 98

def initialize(vm, root_name = "window", root_object = nil)
  @root_name = root_name
  @root_object = root_object || Types::Object.new
  @root_object.put root_name.to_s, @root_object
  @vm = vm
end

Instance Attribute Details

#root_name ⇒ Object (readonly)

Returns the value of attribute root_name.



96
97
98
 
# File 'lib/twostroke/runtime/scope.rb', line 96

def root_name
  @root_name
end

#root_object ⇒ Object (readonly)

Returns the value of attribute root_object.



96
97
98
 
# File 'lib/twostroke/runtime/scope.rb', line 96

def root_object
  @root_object
end

#vm ⇒ Object (readonly)

Returns the value of attribute vm.



96
97
98
 
# File 'lib/twostroke/runtime/scope.rb', line 96

def vm
  @vm
end

Instance Method Details

#close ⇒ Object 



125
126
127
 
# File 'lib/twostroke/runtime/scope.rb', line 125

def close
  Scope.new self
end

#declare(var) ⇒ Object 



117
118
119
 
# File 'lib/twostroke/runtime/scope.rb', line 117

def declare(var)
  @root_object.put var.to_s, Types::Undefined.new
end

#delete(var) ⇒ Object 



121
122
123
 
# File 'lib/twostroke/runtime/scope.rb', line 121

def delete(var)
  @root_object.delete var.to_s
end

#get_var(var) ⇒ Object 



105
106
107
108
109
110
111
 
# File 'lib/twostroke/runtime/scope.rb', line 105

def get_var(var)
  if @root_object.has_property var.to_s
    @root_object.get var.to_s
  else
    Lib.throw_reference_error "undefined variable #{var}"
  end
end

#global_scope ⇒ Object 



133
134
135
 
# File 'lib/twostroke/runtime/scope.rb', line 133

def global_scope
  self
end

#has_var(var) ⇒ Object 



113
114
115
 
# File 'lib/twostroke/runtime/scope.rb', line 113

def has_var(var)
  @root_object.has_property var.to_s
end

#set_var(var, value) ⇒ Object 



129
130
131
 
# File 'lib/twostroke/runtime/scope.rb', line 129

def set_var(var, value)
  @root_object.put var.to_s, value
end