Class: Johnson::TraceMonkey::Runtime

Inherits:
Runtime
  • Object
show all
Defined in:
lib/johnson/tracemonkey/runtime.rb

Overview

native

Constant Summary collapse

CONTEXT_MAP_KEY = 
:johnson_context_map

Constants inherited from Runtime

Runtime::PRELUDE, Runtime::PRELUDE_PATH

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Runtime

#[], #[]=, #delegate, #global, #load, new, #require

Constructor Details

#initialize(options = {}) ⇒ Runtime

Returns a new instance of Runtime.



11
12
13
14
15
16
17
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 11

def initialize(options={})
  @debugger = nil
  @gcthings = {}
  @traps = []
  initialize_native(options)
  super()
end

Instance Attribute Details

#traps ⇒ Object (readonly)

Returns the value of attribute traps.



10
11
12
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 10

def traps
  @traps
end

Class Method Details

.parse_io(*args) ⇒ Object 



63
64
65
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 63

def parse_io *args
  Johnson::TraceMonkey::ImmutableNode.parse_io( *args )
end

.raise_js_exception(jsex) ⇒ Object

Raises:



67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 67

def raise_js_exception(jsex)
  raise jsex if Exception === jsex
  raise Johnson::Error.new(jsex.to_s) unless Johnson::TraceMonkey::RubyLandProxy === jsex

  stack = jsex.stack rescue nil

  message = jsex['message'] || jsex.to_s
  at = "(#{jsex['fileName']}):#{jsex['lineNumber']}"
  ex = Johnson::Error.new("#{message} at #{at}")
  if stack
    js_caller = stack.split("\n").find_all { |x| x != '@:0' }
    ex.set_backtrace(js_caller + caller)
  else
    ex.set_backtrace(caller)
  end

  raise ex
end

Instance Method Details

#add_gcthing(thing) ⇒ Object

called from js_land_proxy.c:make_js_land_proxy



20
21
22
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 20

def add_gcthing(thing)
  @gcthings[thing.object_id] = thing
end

#compile(script, filename = nil, linenum = nil, global = nil) ⇒ Object

Compile script with filename and linenum



55
56
57
58
59
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 55

def compile(script, filename=nil, linenum=nil, global=nil)
  filename ||= 'none'
  linenum  ||= 1
  native_compile(script, filename, linenum, global)
end

#current_context ⇒ Object 



33
34
35
36
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 33

def current_context
  contexts = (Thread.current[CONTEXT_MAP_KEY] ||= {})
  contexts[self.object_id] ||= Context.new(self)
end

#debugger? ⇒ Boolean

Returns:

  • (Boolean) 


29
30
31
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 29

def debugger?
  not @debugger.nil?
end

#evaluate(script, filename = nil, linenum = nil, global = nil, scope = nil) ⇒ Object 



38
39
40
41
42
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 38

def evaluate(script, filename = nil, linenum = nil, global=nil, scope=nil)
  return nil if script.nil?
  compiled_script = compile(script, filename, linenum, global)
  evaluate_compiled_script(compiled_script, scope)
end

#evaluate_compiled_script(script, scope = nil) ⇒ Object 



45
46
47
48
49
50
51
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 45

def evaluate_compiled_script script, scope=nil
  evaluate_compiled_script_without_clearing_traps(script,scope)
ensure
  @traps.each do |trap_tuple|
    clear_trap(*trap_tuple)
  end
end

#evaluate_compiled_script_without_clearing_traps ⇒ Object 



44
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 44

alias :evaluate_compiled_script_without_clearing_traps :evaluate_compiled_script

#remove_gcthing(object_id) ⇒ Object

called from js_land_proxy.c:finalize



25
26
27
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 25

def remove_gcthing(object_id)
  @gcthings.delete(object_id) if defined? @gcthings
end

#version ⇒ Object 



4
5
6
 
# File 'lib/johnson/tracemonkey/runtime.rb', line 4

def version
  TraceMonkey::VERSION
end