Class: TraceTree::Point

Inherits:
Object
  • Object
show all
Includes:
TreeGraphable, TreeHtmlable
Defined in:
lib/trace_tree/point.rb,
lib/trace_tree/point/common.rb,
lib/trace_tree/point/threadend.rb,
lib/trace_tree/point/threadbegin.rb,
lib/trace_tree/point/ccall_kernel_extend.rb,
lib/trace_tree/point/ccall_module_include.rb,
lib/trace_tree/point/ccall_module_prepend.rb,
lib/trace_tree/point/ccall_classthread_new.rb,
lib/trace_tree/point/ccall_thread_initialize.rb,
lib/trace_tree/point/creturn_classthread_new.rb,
lib/trace_tree/point/ccall_module_extendobject.rb,
lib/trace_tree/point/creturn_thread_initialize.rb,
lib/trace_tree/point/ccall_module_appendfeatures.rb,
lib/trace_tree/point/creturn_module_extendobject.rb,
lib/trace_tree/point/ccall_module_prependfeatures.rb,
lib/trace_tree/point/creturn_module_appendfeatures.rb,
lib/trace_tree/point/call_modulemutexm_extendobject.rb,
lib/trace_tree/point/creturn_module_prependfeatures.rb,
lib/trace_tree/point/call_activesupportconcern_appendfeatures.rb

Defined Under Namespace

Classes: CallActivesupportconcernAppendfeatures, CallModuleMutexmExtendobject, CcallClassthreadNew, CcallKernelExtend, CcallModuleAppendfeatures, CcallModuleExtendobject, CcallModuleInclude, CcallModulePrepend, CcallModulePrependfeatures, CcallThreadInitialize, Common, CreturnClassthreadNew, CreturnModuleAppendfeatures, CreturnModuleExtendobject, CreturnModulePrependfeatures, CreturnThreadInitialize, Loader, Threadbegin, Threadend

Constant Summary collapse

Interfaces = 
[:event, :defined_class, :method_id, :path, :lineno]

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from TreeHtmlable

#children_for_tree_html, #css_for_tree_html, #label_for_tree_html

Methods included from TreeGraphable

#children_for_tree_graph, #label_for_tree_graph

Constructor Details

#initialize(trace_point) ⇒ Point

Returns a new instance of Point.



55
56
57
58
59
60
61
62
63
64
 
# File 'lib/trace_tree/point.rb', line 55

def initialize trace_point
  Interfaces.each do |i|
    instance_variable_set "@#{i}", trace_point.send(i)
  end
  @return_value = trace_point.return_value if x_return?
  @current = BindingOfCallers::Revealed.new trace_point.binding.of_caller(3) unless thread?
  @thread = thread? ? trace_point.self : current.send(:eval, 'Thread.current')
rescue => e
  puts e
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_id, *args, &blk) ⇒ Object

Raises:

  • (NoMethodError) 


51
52
53
 
# File 'lib/trace_tree/point.rb', line 51

def method_missing method_id, *args, &blk
  raise NoMethodError, "NoMethodError: undefined method `#{method_id}' for #<#{self.class.proto or self.class.name}#{inspect}>"
end

Class Attribute Details

.proto ⇒ Object (readonly)

Returns the value of attribute proto.



48
49
50
 
# File 'lib/trace_tree/point.rb', line 48

def proto
  @proto
end

Instance Attribute Details

#current ⇒ Object (readonly)

Returns the value of attribute current.



10
11
12
 
# File 'lib/trace_tree/point.rb', line 10

def current
  @current
end

#terminal ⇒ Object

Returns the value of attribute terminal.



11
12
13
 
# File 'lib/trace_tree/point.rb', line 11

def terminal
  @terminal
end

#thread ⇒ Object (readonly)

Returns the value of attribute thread.



10
11
12
 
# File 'lib/trace_tree/point.rb', line 10

def thread
  @thread
end

Class Method Details

.bases ⇒ Object 



25
26
27
 
# File 'lib/trace_tree/point.rb', line 25

def bases
  @bases ||= []
end

.class_of?(point) ⇒ Boolean

Returns:

  • (Boolean) 


38
39
40
 
# File 'lib/trace_tree/point.rb', line 38

def class_of? point
  [point.event, point.defined_class, point.method_id] == event_class_method
end

.classes ⇒ Object 



21
22
23
 
# File 'lib/trace_tree/point.rb', line 21

def classes
  @classes ||= bases.each_with_object(Hash.new{|h| h[:common]}){|c, h| h[c.event_class_method] = c}
end

.hashify(point) ⇒ Object 



29
30
31
32
33
34
35
36
 
# File 'lib/trace_tree/point.rb', line 29

def hashify point
  attrs = Interfaces.each_with_object({}) do |attr, hash|
    hash[attr] = point.send attr
  end
  attrs.merge!({return_value: point.return_value}) if point.event =~ /return/
  attrs.merge!({thread: point.thread}) if point.respond_to? :thread
  attrs
end

.inherited(base) ⇒ Object 



17
18
19
 
# File 'lib/trace_tree/point.rb', line 17

def inherited base
  bases << base
end

.initialize_clone(proto) ⇒ Object 



42
43
44
45
46
 
# File 'lib/trace_tree/point.rb', line 42

def initialize_clone proto
  super.tap do
    instance_variable_set :@proto, proto
  end
end

Instance Method Details

#<<(node) ⇒ Object 



107
108
109
 
# File 'lib/trace_tree/point.rb', line 107

def << node
  callees << node
end

#_class_and_method ⇒ Object 



119
120
121
 
# File 'lib/trace_tree/point.rb', line 119

def _class_and_method
  @km ||= "#{class_name}#{call_symbol}#{method_name}"
end

#arg ⇒ Object 



141
142
143
 
# File 'lib/trace_tree/point.rb', line 141

def arg
  respond_to?(:parameters) ? "(#{parameters})" : nil
end

#c_call? ⇒ Boolean

Returns:

  • (Boolean) 


66
67
68
 
# File 'lib/trace_tree/point.rb', line 66

def c_call?
  event == :c_call
end

#call_symbol ⇒ Object 



133
134
135
 
# File 'lib/trace_tree/point.rb', line 133

def call_symbol
  c_call? ? '#' : current.call_symbol
end

#callees ⇒ Object 



111
112
113
 
# File 'lib/trace_tree/point.rb', line 111

def callees
  @callees ||= []
end

#class_and_method ⇒ Object 



115
116
117
 
# File 'lib/trace_tree/point.rb', line 115

def class_and_method
  "#{_class_and_method}#{arg}"
end

#class_name ⇒ Object 



123
124
125
126
127
 
# File 'lib/trace_tree/point.rb', line 123

def class_name
  c_call? ? defined_class : current.klass
rescue => e
  puts event
end

#ending?(point) ⇒ Boolean

Returns:

  • (Boolean) 


99
100
101
102
103
104
105
 
# File 'lib/trace_tree/point.rb', line 99

def ending? point
  (event == :b_return and point.event == :b_call) or
    (event == :c_return and point.event == :c_call) or
    (event == :return and point.event == :call) or
    (event == :end and point.event == :class) or
    (event == :thread_end and point.event == :thread_begin)
end

#inspect ⇒ Object 



83
84
85
 
# File 'lib/trace_tree/point.rb', line 83

def inspect
  to_h.inspect
end

#method_name ⇒ Object 



129
130
131
 
# File 'lib/trace_tree/point.rb', line 129

def method_name
  c_call? ? method_id : current.frame_env
end

#return_value ⇒ Object

Raises:

  • (RuntimeError) 


78
79
80
81
 
# File 'lib/trace_tree/point.rb', line 78

def return_value
  raise RuntimeError.new('RuntimeError: not supported by this event') unless x_return?
  @return_value
end

#same_method?(point) ⇒ Boolean

Returns:

  • (Boolean) 


95
96
97
 
# File 'lib/trace_tree/point.rb', line 95

def same_method? point
  point.defined_class == defined_class and point.method_id == method_id
end

#source_location ⇒ Object 



137
138
139
 
# File 'lib/trace_tree/point.rb', line 137

def source_location
  "#{path}:#{lineno}"
end

#terminate?(point) ⇒ Boolean

Returns:

  • (Boolean) 


91
92
93
 
# File 'lib/trace_tree/point.rb', line 91

def terminate? point
  same_method?(point) and ending?(point)
end

#thread? ⇒ Boolean

Returns:

  • (Boolean) 


74
75
76
 
# File 'lib/trace_tree/point.rb', line 74

def thread?
  event =~ /thread/
end

#to_h ⇒ Object 



87
88
89
 
# File 'lib/trace_tree/point.rb', line 87

def to_h
  self.class.hashify(self)
end

#x_return? ⇒ Boolean

Returns:

  • (Boolean) 


70
71
72
 
# File 'lib/trace_tree/point.rb', line 70

def x_return?
  event =~ /return/
end