Class: Packcr::Node::ErrorNode

Inherits:
Packcr::Node show all
Defined in:
lib/packcr/node/error_node.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Packcr::Node

#alt, #seq

Constructor Details

#initialize(expr = nil, code = nil, index = nil) ⇒ ErrorNode

Returns a new instance of ErrorNode.



6
7
8
9
10
11
12
13
 
# File 'lib/packcr/node/error_node.rb', line 6

def initialize(expr = nil, code = nil, index = nil)
  super()
  @expr = expr
  @code = code
  @index = index
  self.vars = []
  self.capts = []
end

Instance Attribute Details

#capts ⇒ Object

Returns the value of attribute capts.



4
5
6
 
# File 'lib/packcr/node/error_node.rb', line 4

def capts
  @capts
end

#code ⇒ Object

Returns the value of attribute code.



4
5
6
 
# File 'lib/packcr/node/error_node.rb', line 4

def code
  @code
end

#expr ⇒ Object

Returns the value of attribute expr.



4
5
6
 
# File 'lib/packcr/node/error_node.rb', line 4

def expr
  @expr
end

#index ⇒ Object

Returns the value of attribute index.



4
5
6
 
# File 'lib/packcr/node/error_node.rb', line 4

def index
  @index
end

#vars ⇒ Object

Returns the value of attribute vars.



4
5
6
 
# File 'lib/packcr/node/error_node.rb', line 4

def vars
  @vars
end

Instance Method Details

#debug_dump(indent = 0) ⇒ Object 



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/packcr/node/error_node.rb', line 15

def debug_dump(indent = 0)
  $stdout.print "#{" " * indent}Error(index:"
  Packcr.dump_integer_value(index)
  $stdout.print ", code:{"
  Packcr.dump_escaped_string(code.text)
  $stdout.print "}, vars:\n"
  vars.each do |ref|
    $stdout.print "#{" " * (indent + 2)}'#{ref.var}'\n"
  end
  capts.each do |capt|
    $stdout.print "#{" " * (indent + 2)}$#{capt.index + 1}\n"
  end
  $stdout.print "#{" " * indent}) {\n"
  expr.debug_dump(indent + 2)
  $stdout.print "#{" " * indent}}\n"
end

#generate_code(gen, onfail, indent, bare) ⇒ Object 



32
33
34
35
36
37
38
 
# File 'lib/packcr/node/error_node.rb', line 32

def generate_code(gen, onfail, indent, bare)
  l = gen.next_label
  m = gen.next_label
  r, code = gen.generate_code_str(expr, l, 4, true)
  gen.write Packcr.template("node/error.#{gen.lang}.erb", binding, indent: indent, unwrap: bare)
  return r
end

#link_references(ctx) ⇒ Object 



50
51
52
 
# File 'lib/packcr/node/error_node.rb', line 50

def link_references(ctx)
  expr.link_references(ctx)
end

#nodes ⇒ Object 



54
55
56
 
# File 'lib/packcr/node/error_node.rb', line 54

def nodes
  [expr]
end

#setup_rule(rule) ⇒ Object 



58
59
60
61
62
 
# File 'lib/packcr/node/error_node.rb', line 58

def setup_rule(rule)
  @index = rule.codes.length
  rule.codes.push(self)
  super
end

#verify_captures(ctx, capts) ⇒ Object 



45
46
47
48
 
# File 'lib/packcr/node/error_node.rb', line 45

def verify_captures(ctx, capts)
  @capts = capts
  expr.verify_captures(ctx, capts)
end

#verify_variables(vars) ⇒ Object 



40
41
42
43
 
# File 'lib/packcr/node/error_node.rb', line 40

def verify_variables(vars)
  @vars = vars
  expr.verify_variables(vars)
end