frame.current_node = old
end
+ # Does the same as an usual send, except it will modify the call chain on the first call when injecting code at Runtime using the debugger.
+ # Instead of creating a pristine Frame, it will copy the actual values of the frame, and re-inject them after execution in the current context.
+ fun rt_send(mproperty: MMethod, args: Array[Instance]): nullable Instance
+ do
+ var recv = args.first
+ var mtype = recv.mtype
+ var ret = send_commons(mproperty, args, mtype)
+ if ret != null then return ret
+ var propdef = mproperty.lookup_first_definition(self.mainmodule, mtype)
+ return self.rt_call(propdef, args)
+ end
+
+ # Same as a regular call but for a runtime injected module
+ #
+ fun rt_call(mpropdef: MMethodDef, args: Array[Instance]): nullable Instance
+ do
+ args = call_commons(mpropdef, args)
+ return rt_call_without_varargs(mpropdef, args)
+ end
+
+ # Common code to call and this function
+ #
+ # Call only executes the variadic part, this avoids
+ # double encapsulation of variadic parameters into an Array
+ fun rt_call_without_varargs(mpropdef: MMethodDef, args: Array[Instance]): nullable Instance
+ do
+ if self.modelbuilder.toolcontext.opt_discover_call_trace.value and not self.discover_call_trace.has(mpropdef) then
+ self.discover_call_trace.add mpropdef
+ self.debug("Discovered {mpropdef}")
+ end
+ if args.length < mpropdef.msignature.arity + 1 or args.length > mpropdef.msignature.arity + 1 then
+ fatal("NOT YET IMPLEMENTED: Invalid arity for {mpropdef}. {args.length} arguments given.")
+ end
+ if args.length < mpropdef.msignature.arity + 1 then
+ fatal("NOT YET IMPLEMENTED: default closures")
+ end
+
+ # Look for the AST node that implements the property
+ var mproperty = mpropdef.mproperty
+ if self.modelbuilder.mpropdef2npropdef.has_key(mpropdef) then
+ var npropdef = self.modelbuilder.mpropdef2npropdef[mpropdef]
+ self.parameter_check(npropdef, mpropdef, args)
+ if npropdef isa AConcreteMethPropdef then
+ return npropdef.rt_call(self, mpropdef, args)
+ else
+ print "Error, invalid propdef to call at runtime !"
+ return null
+ end
+ else if mproperty.name == "init" then
+ var nclassdef = self.modelbuilder.mclassdef2nclassdef[mpropdef.mclassdef]
+ self.parameter_check(nclassdef, mpropdef, args)
+ return nclassdef.call(self, mpropdef, args)
+ else
+ fatal("Fatal Error: method {mpropdef} not found in the AST")
+ abort
+ end
+ end
+
# Encpasulates the behaviour for step over/out
private fun steps_fun_call(n: AExpr)
do
print "untrace variable_name : Removes the trace on the variable you chose to trace earlier in the program"
print "kill : kills the current program (Exits with an error and stack trace)\n"
end
+end
+redef class AConcreteMethPropdef
+
+ # Same as call except it will copy local variables of the parent frame to the frame defined in this call.
+ # Not supposed to be used by anyone else than the Debugger.
+ private fun rt_call(v: Debugger, mpropdef: MMethodDef, args: Array[Instance]): nullable Instance
+ do
+ var f = new Frame(self, self.mpropdef.as(not null), args)
+ var curr_instances = v.frame.map
+ for i in curr_instances.keys do
+ f.map[i] = curr_instances[i]
+ end
+ call_commons(v,mpropdef,args,f)
+ var currFra = v.frames.shift
+ for i in curr_instances.keys do
+ if currFra.map.keys.has(i) then
+ curr_instances[i] = currFra.map[i]
+ end
+ end
+ if v.returnmark == f then
+ v.returnmark = null
+ var res = v.escapevalue
+ v.escapevalue = null
+ return res
+ end
+ return null
+
+ end
end
# Traces the modifications of an object linked to a certain frame
# Store known method, used to trace methods as thez are reached
var discover_call_trace: Set[MMethodDef] = new HashSet[MMethodDef]
- # Execute `mpropdef` for a `args` (where `args[0]` is the receiver).
- # Return a falue if `mpropdef` is a function, or null if it is a procedure.
- # The call is direct/static. There is no message-seding/late-binding.
- fun call(mpropdef: MMethodDef, args: Array[Instance]): nullable Instance
+ # Common code for calls to injected methods and normal methods
+ fun call_commons(mpropdef: MMethodDef, args: Array[Instance]): Array[Instance]
do
var vararg_rank = mpropdef.msignature.vararg_rank
if vararg_rank >= 0 then
args.add(rawargs[i+1])
end
end
+ return args
+ end
+
+ # Execute `mpropdef` for a `args` (where `args[0]` is the receiver).
+ # Return a falue if `mpropdef` is a function, or null if it is a procedure.
+ # The call is direct/static. There is no message-seding/late-binding.
+ fun call(mpropdef: MMethodDef, args: Array[Instance]): nullable Instance
+ do
+ args = call_commons(mpropdef, args)
return call_without_varargs(mpropdef, args)
end
end
end
- # Execute `mproperty` for a `args` (where `args[0]` is the receiver).
- # Return a falue if `mproperty` is a function, or null if it is a procedure.
- # The call is polimotphic. There is a message-seding/late-bindng according to te receiver (args[0]).
- fun send(mproperty: MMethod, args: Array[Instance]): nullable Instance
+ # Common code for runtime injected calls and normal calls
+ fun send_commons(mproperty: MMethod, args: Array[Instance], mtype: MType): nullable Instance
do
- var recv = args.first
- var mtype = recv.mtype
if mtype isa MNullType then
if mproperty.name == "==" then
return self.bool_instance(args[0] == args[1])
end
#fatal("Reciever is null. {mproperty}. {args.join(" ")} {self.frame.current_node.class_name}")
fatal("Reciever is null")
- abort
end
+ return null
+ end
+
+ # Execute `mproperty` for a `args` (where `args[0]` is the receiver).
+ # Return a falue if `mproperty` is a function, or null if it is a procedure.
+ # The call is polimotphic. There is a message-seding/late-bindng according to te receiver (args[0]).
+ fun send(mproperty: MMethod, args: Array[Instance]): nullable Instance
+ do
+ var recv = args.first
+ var mtype = recv.mtype
+ var ret = send_commons(mproperty, args, mtype)
+ if ret != null then return ret
var propdef = mproperty.lookup_first_definition(self.mainmodule, mtype)
return self.call(propdef, args)
end
end
redef class AConcreteMethPropdef
+
redef fun call(v, mpropdef, args)
do
var f = new Frame(self, self.mpropdef.as(not null), args)
+ call_commons(v, mpropdef, args, f)
+ v.frames.shift
+ if v.returnmark == f then
+ v.returnmark = null
+ var res = v.escapevalue
+ v.escapevalue = null
+ return res
+ end
+ return null
+ end
+
+ private fun call_commons(v: NaiveInterpreter, mpropdef: MMethodDef, args: Array[Instance], f: Frame)
+ do
for i in [0..mpropdef.msignature.arity[ do
var variable = self.n_signature.n_params[i].variable
assert variable != null
end
v.stmt(self.n_block)
- v.frames.shift
- if v.returnmark == f then
- v.returnmark = null
- var res = v.escapevalue
- v.escapevalue = null
- return res
- end
- return null
end
end
nitlanguage / nit.git / commitdiff