Class: Node::UNDEF

Inherits:

Node

• Object
• Node
• Node::UNDEF

Defined in:

ext/internal/node/nodeinfo.c,
ext/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.4/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.4/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.5/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.5/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.6/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.6/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.7/internal/node/nodeinfo.c,
ext/cached/ruby-1.8.7/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.1/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.1/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.2/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.2/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.3/internal/node/nodeinfo.c,
ext/cached/ruby-1.9.3/internal/node/nodeinfo.c

Overview

Represents an expression using the undef keyword, e.g.:

undef :mid

This causes the method identified by mid in the current class to be undefined.

Class Method Summary

• .members ⇒ Array

  Return an array of strings containing the names of the node class’s members.

Instance Method Summary

• #body ⇒ Object

  Return the Node’s body member.

• #mid ⇒ Object

  Return the Node’s mid member.

Methods inherited from Node

#[], #_dump, _load, #address, #bytecode_compile, compile_string, #eval, #flags, #inspect, #members, #nd_file, #nd_line, #nd_type, #obfusc, #pretty_print, #swap, #to_a, #tree, type

Class Method Details

.members ⇒ Array

Return an array of strings containing the names of the node class’s members.

Returns:

• (Array)

# File 'ext/internal/node/nodeinfo.c', line 2793

VALUE node_s_members(VALUE klass)
{
  return rb_iv_get(klass, "__member__");
}

Instance Method Details

#body ⇒ Object

Return the Node’s body member. The return type is either a Node or an Object.

# File 'ext/internal/node/nodeinfo.c', line 2076

static VALUE node_body(VALUE self)
{
  NODE * n;
  Data_Get_Struct(self, NODE, n);

  if(TYPE(n->nd_body) == T_NODE)
  {
    if(0 && nd_type(n) == NODE_OP_ASGN2)
    {
      return wrap_node_as(
        (NODE *)n->nd_body,
        rb_cNodeSubclass[NODE_OP_ASGN2_ARG]);
    }
    else
    {
      return wrap_node((NODE *)n->nd_body);
    }
  }
  else
  {
    return (VALUE)n->nd_body;
  }
}

#mid ⇒ Object

Return the Node’s mid member. The return type is a Symbol.

# File 'ext/cached/ruby-1.8.4/internal/node/nodeinfo.c', line 2504

static VALUE node_mid(VALUE self)
{
  NODE * n;
  Data_Get_Struct(self, NODE, n);
  if(n->nd_mid == 0)
  {
    return Qfalse;
  }
  else if(n->nd_mid == 1)
  {
    return Qtrue;
  }
  else
  {
    return ID2SYM(n->nd_mid);
  }
}