# FIXME: better handling of the types
module model
-import poset
-import location
import mmodule
import mdoc
import ordered_tree
private var object_type_cache: nullable MClassType
+ # The type `Pointer`, super class to all extern classes
+ var pointer_type: MClassType = self.get_primitive_class("Pointer").mclass_type is lazy
+
# The primitive type `Bool`
fun bool_type: MClassType
do
return get_primitive_class("Sys").mclass_type
end
+ fun finalizable_type: nullable MClassType
+ do
+ var clas = self.model.get_mclasses_by_name("Finalizable")
+ if clas == null then return null
+ return get_primitive_class("Finalizable").mclass_type
+ end
+
# Force to get the primitive class named `name` or abort
fun get_primitive_class(name: String): MClass
do
var cla = self.model.get_mclasses_by_name(name)
if cla == null then
if name == "Bool" then
- var c = new MClass(self, name, 0, enum_kind, public_visibility)
- var cladef = new MClassDef(self, c.mclass_type, new Location(null, 0,0,0,0), new Array[String])
+ var c = new MClass(self, name, null, enum_kind, public_visibility)
+ var cladef = new MClassDef(self, c.mclass_type, new Location(null, 0,0,0,0))
return c
end
print("Fatal Error: no primitive class {name}")
# 0 if the class is not generic
var arity: Int
+ # Each generic formal parameters in order.
+ # is empty if the class is not generic
+ var mparameters = new Array[MParameterType]
+
# The kind of the class (interface, abstract class, etc.)
# In Nit, the kind of a class cannot evolve in refinements
var kind: MClassKind
# In Nit, the visibility of a class cannot evolve in refinements
var visibility: MVisibility
- init(intro_mmodule: MModule, name: String, arity: Int, kind: MClassKind, visibility: MVisibility)
+ init(intro_mmodule: MModule, name: String, parameter_names: nullable Array[String], kind: MClassKind, visibility: MVisibility)
do
self.intro_mmodule = intro_mmodule
self.name = name
- self.arity = arity
+ if parameter_names == null then
+ self.arity = 0
+ else
+ self.arity = parameter_names.length
+ end
self.kind = kind
self.visibility = visibility
intro_mmodule.intro_mclasses.add(self)
# Create the formal parameter types
if arity > 0 then
+ assert parameter_names != null
var mparametertypes = new Array[MParameterType]
for i in [0..arity[ do
- var mparametertype = new MParameterType(self, i)
+ var mparametertype = new MParameterType(self, i, parameter_names[i])
mparametertypes.add(mparametertype)
end
+ self.mparameters = mparametertypes
var mclass_type = new MGenericType(self, mparametertypes)
self.mclass_type = mclass_type
self.get_mtype_cache.add(mclass_type)
# ENSURE: `bound_mtype.mclass == self.mclass`
var bound_mtype: MClassType
- # Name of each formal generic parameter (in order of declaration)
- var parameter_names: Array[String]
-
# The origin of the definition
var location: Location
# Example: "mymodule#MyClass"
redef var to_s: String
- init(mmodule: MModule, bound_mtype: MClassType, location: Location, parameter_names: Array[String])
+ init(mmodule: MModule, bound_mtype: MClassType, location: Location)
do
- assert bound_mtype.mclass.arity == parameter_names.length
self.bound_mtype = bound_mtype
self.mmodule = mmodule
self.mclass = bound_mtype.mclass
self.location = location
mmodule.mclassdefs.add(self)
mclass.mclassdefs.add(self)
- self.parameter_names = parameter_names
self.to_s = "{mmodule}#{mclass}"
end
# The type associated the a formal parameter generic type of a class
#
# Each parameter type is associated to a specific class.
-# It's mean that all refinements of a same class "share" the parameter type,
-# but that a generic subclass has its on parameter types.
+# It means that all refinements of a same class "share" the parameter type,
+# but that a generic subclass has its own parameter types.
#
# However, in the sense of the meta-model, a parameter type of a class is
# a valid type in a subclass. The "in the sense of the meta-model" is
# FIXME: is `position` a better name?
var rank: Int
- # Internal name of the parameter type
- # Names of parameter types changes in each class definition
- # Therefore, this method return an internal name.
- # Example: return "G#1" for the second parameter of the class G
- # FIXME: add a way to get the real name in a classdef
- redef fun to_s do return "{mclass}#{rank}"
+ redef var name
+
+ redef fun to_s do return name
# Resolve the bound for a given resolved_receiver
# The result may be a other virtual type (or a parameter type)
#print "{class_name}: {self}/{mtype}/{anchor}?"
if mtype isa MGenericType and mtype.mclass == self.mclass then
- return mtype.arguments[self.rank]
+ var res = mtype.arguments[self.rank]
+ if anchor != null and res.need_anchor then
+ # Maybe the result can be resolved more if are bound to a final class
+ var r2 = res.anchor_to(mmodule, anchor)
+ if r2 isa MClassType and r2.mclass.kind == enum_kind then return r2
+ end
+ return res
end
# self is a parameter type of mtype (or of a super-class of mtype)
return mtype.collect_mclassdefs(mmodule).has(mclass.intro)
end
- init(mclass: MClass, rank: Int)
+ init(mclass: MClass, rank: Int, name: String)
do
self.mclass = mclass
self.rank = rank
+ self.name = name
end
end
# Is the property defined at the top_level of the module?
# Currently such a property are stored in `Object`
- var is_toplevel: Bool writable = false
+ var is_toplevel: Bool = false is writable
# Is the property a constructor?
# Warning, this property can be inherited by subclasses with or without being a constructor
# therefore, you should use `is_init_for` the verify if the property is a legal constructor for a given class
- var is_init: Bool writable = false
+ var is_init: Bool = false is writable
+
+ # The constructor is a (the) root init with empty signature but a set of initializers
+ var is_root_init: Bool = false is writable
# The the property a 'new' contructor?
- var is_new: Bool writable = false
+ var is_new: Bool = false is writable
# Is the property a legal constructor for a given class?
# As usual, visibility is not considered.
end
# The signature attached to the property definition
- var msignature: nullable MSignature writable = null
+ var msignature: nullable MSignature = null is writable
+
+ # The signature attached to the `new` call on a root-init
+ # This is a concatenation of the signatures of the initializers
+ #
+ # REQUIRE `mproperty.is_root_init == (new_msignature != null)`
+ var new_msignature: nullable MSignature = null is writable
+
+ # List of initialisers to call in root-inits
+ #
+ # They could be setters or attributes
+ #
+ # REQUIRE `mproperty.is_root_init == (new_msignature != null)`
+ var initializers = new Array[MProperty]
# Is the method definition abstract?
- var is_abstract: Bool writable = false
+ var is_abstract: Bool = false is writable
# Is the method definition intern?
- var is_intern writable = false
+ var is_intern = false is writable
# Is the method definition extern?
- var is_extern writable = false
+ var is_extern = false is writable
end
# A local definition of an attribute
end
# The static type of the attribute
- var static_mtype: nullable MType writable = null
+ var static_mtype: nullable MType = null is writable
end
# A local definition of a virtual type
end
# The bound of the virtual type
- var bound: nullable MType writable = null
+ var bound: nullable MType = null is writable
# Is the bound fixed?
- var is_fixed writable = false
+ var is_fixed = false is writable
end
# A kind of class.
nitlanguage / nit.git / blobdiff