Class: Node::IF

Inherits:

Node

• Object
• Node
• Node::IF

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 a conditional of the form:

if cond then
  body
end

or the form:

if cond then
  body
else
  else
end

The condition is first evaluated. If it is true, then body is evaluated, otherwise else is evaluated. The result is the value of the expression evaluated, or nil if there was no expression present.

A conditional block using elsif has another IF node as the else expression.

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.

• #cond ⇒ Object

  Return the Node’s cond member.

• #else ⇒ Object

  Return the Node’s else member.

Methods inherited from Node

#[], #_dump, _load, #address, #as_code, #as_expression, #as_paren_expression, #bytecode_compile, compile_string, define_code, define_expression, #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;
  }
}

#cond ⇒ Object

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

# File 'ext/internal/node/nodeinfo.c', line 2129

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

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

#else ⇒ Object

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

# File 'ext/internal/node/nodeinfo.c', line 2237

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

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