import typing
import auto_super_init
+redef class ToolContext
+ # --discover-call-trace
+ var opt_discover_call_trace: OptionBool = new OptionBool("Trace calls of the first invocation of a method", "--discover-call-trace")
+
+ redef init
+ do
+ super
+ self.option_context.add_option(self.opt_discover_call_trace)
+ end
+end
+
redef class ModelBuilder
# Execute the program from the entry point (Sys::main) of the `mainmodule'
# `arguments' are the command-line arguments in order
if i == null and not self.is_escaping then
n.debug("inconsitance: no value and not escaping.")
end
+ var implicit_cast_to = n.implicit_cast_to
+ if implicit_cast_to != null then
+ var mtype = self.unanchor_type(implicit_cast_to)
+ if not self.is_subtype(i.mtype, mtype) then n.fatal(self, "Cast failed")
+ end
+
#n.debug("OUT Execute expr: value is {i}")
#if not is_subtype(i.mtype, n.mtype.as(not null)) then n.debug("Expected {n.mtype.as(not null)} got {i}")
frame.current_node = old
exit(1)
end
+ # Debug on the current node
+ fun debug(message: String)
+ do
+ if frames.is_empty then
+ print message
+ else
+ self.frame.current_node.debug(message)
+ end
+ end
+
+ # 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-bindng.
fun call(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
var vararg_rank = mpropdef.msignature.vararg_rank
if vararg_rank >= 0 then
assert args.length >= mpropdef.msignature.arity + 1 # because of self
var mproperty = mpropdef.mproperty
if self.modelbuilder.mpropdef2npropdef.has_key(mpropdef) then
var npropdef = self.modelbuilder.mpropdef2npropdef[mpropdef]
+ self.parameter_check(npropdef, mpropdef, args)
return npropdef.call(self, mpropdef, args)
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")
end
end
+ # Generate type checks in the C code to check covariant parameters
+ fun parameter_check(node: ANode, mpropdef: MMethodDef, args: Array[Instance])
+ do
+ var msignature = mpropdef.msignature
+ for i in [0..msignature.arity[ do
+ # skip test for vararg since the array is instantiated with the correct polymorphic type
+ if msignature.vararg_rank == i then continue
+
+ # skip if the cast is not required
+ var origmtype = mpropdef.mproperty.intro.msignature.mparameters[i].mtype
+ if not origmtype.need_anchor then continue
+
+ # get the parameter type
+ var mtype = msignature.mparameters[i].mtype
+ var anchor = args.first.mtype.as(MClassType)
+ mtype = mtype.anchor_to(self.mainmodule, anchor)
+ if not args[i+1].mtype.is_subtype(self.mainmodule, anchor, mtype) then
+ node.fatal(self, "Cast failed")
+ end
+ end
+ end
+
fun call_closure(closure: ClosureInstance, args: Array[Instance]): nullable Instance
do
var nclosuredef = closure.nclosuredef
fatal("Reciever is null")
abort
end
- var propdefs = mproperty.lookup_definitions(self.mainmodule, mtype)
- if propdefs.length > 1 then
- fatal("NOT YET IMPLEMETED ERROR: Property conflict: {propdefs.join(", ")}")
- abort
- end
- assert propdefs.length == 1 else
- fatal("Fatal Error: No property '{mproperty}' for '{recv}'")
- abort
- end
- var propdef = propdefs.first
+ var propdef = mproperty.lookup_first_definition(self.mainmodule, mtype)
return self.call(propdef, args)
end
fun eq_is(o: Instance): Bool do return self is o
# Human readable object identity "Type#number"
- redef fun to_s do return "{mtype}#{object_id}"
+ redef fun to_s do return "{mtype}"
# Return the integer value if the instance is an integer.
# else aborts
private fun fatal(v: NaiveInterpreter, message: String)
do
if v.modelbuilder.toolcontext.opt_no_color.value == true then
- print("Runtime error: {message} ({location.file.filename}:{location.line_start})")
+ stderr.write("Runtime error: {message} ({location.file.filename}:{location.line_start})\n")
else
- print("{location}: Runtime error: {message}\n{location.colored_line("0;31")}")
- print(v.stack_trace)
+ stderr.write("{location}: Runtime error: {message}\n{location.colored_line("0;31")}\n")
+ stderr.write(v.stack_trace)
+ stderr.write("\n")
end
exit(1)
end
end
else if pname == "output_class_name" then
var recv = args.first
- print recv.mtype.as(MClassType).mclass
+ print recv.mtype
return null
else if pname == "native_class_name" then
var recv = args.first
- var txt = recv.mtype.as(MClassType).mclass.to_s
+ var txt = recv.mtype.to_s
return v.native_string_instance(txt)
else if pname == "==" then
# == is correclt redefined for instances
end
else if pname == "calloc_array" then
var recvtype = args.first.mtype.as(MClassType)
- var mtype: MType = recvtype.supertype_to(v.mainmodule, recvtype, v.mainmodule.get_primitive_class("ArrayCapable"))
- mtype = mtype.as(MGenericType).arguments.first
+ var mtype: MType
+ mtype = recvtype.supertype_to(v.mainmodule, recvtype, v.mainmodule.get_primitive_class("ArrayCapable"))
+ mtype = mtype.arguments.first
var val = new Array[Instance].filled_with(v.null_instance, args[1].to_i)
return new PrimitiveInstance[Array[Instance]](v.mainmodule.get_primitive_class("NativeArray").get_mtype([mtype]), val)
end
if i == null then return null
val.add(i)
end
- var mtype = v.unanchor_type(self.mtype.as(not null)).as(MGenericType)
+ var mtype = v.unanchor_type(self.mtype.as(not null)).as(MClassType)
var elttype = mtype.arguments.first
return v.array_instance(val, elttype)
end
do
var recv = v.expr(self.n_expr)
if recv == null then return null
+ if recv.mtype isa MNullType then fatal(v, "Reciever is null")
var mproperty = self.mproperty.as(not null)
return v.read_attribute(mproperty, recv)
end
do
var recv = v.expr(self.n_expr)
if recv == null then return
+ if recv.mtype isa MNullType then fatal(v, "Reciever is null")
var i = v.expr(self.n_value)
if i == null then return
var mproperty = self.mproperty.as(not null)
do
var recv = v.expr(self.n_expr)
if recv == null then return
+ if recv.mtype isa MNullType then fatal(v, "Reciever is null")
var value = v.expr(self.n_value)
if value == null then return
var mproperty = self.mproperty.as(not null)
do
var recv = v.expr(self.n_expr)
if recv == null then return null
+ if recv.mtype isa MNullType then fatal(v, "Reciever is null")
var mproperty = self.mproperty.as(not null)
assert recv isa MutableInstance
return v.bool_instance(recv.attributes.has_key(mproperty))
nitlanguage / nit.git / blobdiff