module Johnson #:nodoc: module SpiderMonkey #:nodoc: class Runtime < Johnson::Runtime # native CONTEXT_MAP_KEY = :johnson_context_map attr_reader :traps def initialize(options={}) @debugger = nil @gcthings = {} @traps = [] initialize_native(options) super() end # called from js_land_proxy.c:make_js_land_proxy def add_gcthing(thing) @gcthings[thing.object_id] = thing end # called from js_land_proxy.c:finalize def remove_gcthing(object_id) @gcthings.delete(object_id) if defined? @gcthings end def debugger? not @debugger.nil? end def current_context contexts = (Thread.current[CONTEXT_MAP_KEY] ||= {}) contexts[self.object_id] ||= Context.new(self) end alias :evaluate_compiled_script_without_clearing_traps :evaluate_compiled_script def evaluate_compiled_script script evaluate_compiled_script_without_clearing_traps(script) ensure @traps.each do |trap_tuple| clear_trap(*trap_tuple) end end ### # Compile +script+ with +filename+ and +linenum+ def compile(script, filename=nil, linenum=nil) filename ||= 'none' linenum ||= 1 native_compile(script, filename, linenum) end class << self def raise_js_exception(jsex) raise jsex if Exception === jsex raise Johnson::Error.new(jsex.to_s) unless Johnson::SpiderMonkey::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 end private # Called by SpiderMonkey's garbage collector to determine whether or # not it should GC def should_sm_gc? return false if Thread.list.find_all { |t| t.key?(CONTEXT_MAP_KEY) }.length > 1 true end end end end