# The primitive type `Int`
var int_type: MClassType = self.get_primitive_class("Int").mclass_type is lazy
+ # The primitive type `Byte`
+ var byte_type: MClassType = self.get_primitive_class("Byte").mclass_type is lazy
+
+ # The primitive type `Int8`
+ var int8_type: MClassType = self.get_primitive_class("Int8").mclass_type is lazy
+
+ # The primitive type `Int16`
+ var int16_type: MClassType = self.get_primitive_class("Int16").mclass_type is lazy
+
+ # The primitive type `UInt16`
+ var uint16_type: MClassType = self.get_primitive_class("UInt16").mclass_type is lazy
+
+ # The primitive type `Int32`
+ var int32_type: MClassType = self.get_primitive_class("Int32").mclass_type is lazy
+
+ # The primitive type `UInt32`
+ var uint32_type: MClassType = self.get_primitive_class("UInt32").mclass_type is lazy
+
# The primitive type `Char`
var char_type: MClassType = self.get_primitive_class("Char").mclass_type is lazy
# Is there a `new` factory to allow the pseudo instantiation?
var has_new_factory = false is writable
+
+ # Is `self` a standard or abstract class kind?
+ var is_class: Bool is lazy do return kind == concrete_kind or kind == abstract_kind
+
+ # Is `self` an interface kind?
+ var is_interface: Bool is lazy do return kind == interface_kind
+
+ # Is `self` an enum kind?
+ var is_enum: Bool is lazy do return kind == enum_kind
+
+ # Is `self` and abstract class?
+ var is_abstract: Bool is lazy do return kind == abstract_kind
end
redef var to_s: String is noinit
# The full-name of the class, then the full-name of each type arguments within brackets.
- # Example: `"standard::Map[standard::String, standard::List[standard::Int]]"`
+ # Example: `"core::Map[core::String, core::List[core::Int]]"`
redef var full_name is lazy do
var args = new Array[String]
for t in arguments do
redef fun c_name do return "null"
redef fun as_nullable do return self
- # Aborts on `null`
- redef fun as_notnull do abort # sorry...
+ redef var as_notnull = new MBottomType(model) is lazy
+ redef fun need_anchor do return false
+ redef fun resolve_for(mtype, anchor, mmodule, cleanup_virtual) do return self
+ redef fun can_resolve_for(mtype, anchor, mmodule) do return true
+
+ redef fun collect_mclassdefs(mmodule) do return new HashSet[MClassDef]
+
+ redef fun collect_mclasses(mmodule) do return new HashSet[MClass]
+
+ redef fun collect_mtypes(mmodule) do return new HashSet[MClassType]
+end
+
+# The special universal most specific type.
+#
+# This type is intended to be only used internally for type computation or analysis and should not be exposed to the user.
+# The bottom type can de used to denote things that are absurd, dead, or the absence of knowledge.
+#
+# Semantically it is the singleton `null.as_notnull`.
+class MBottomType
+ super MType
+ redef var model: Model
+ redef fun to_s do return "bottom"
+ redef fun full_name do return "bottom"
+ redef fun c_name do return "bottom"
+ redef fun as_nullable do return model.null_type
+ redef fun as_notnull do return self
redef fun need_anchor do return false
redef fun resolve_for(mtype, anchor, mmodule, cleanup_virtual) do return self
redef fun can_resolve_for(mtype, anchor, mmodule) do return true
# The each parameter (in order)
var mparameters: Array[MParameter]
+ # Returns a parameter named `name`, if any.
+ fun mparameter_by_name(name: String): nullable MParameter
+ do
+ for p in mparameters do
+ if p.name == name then return p
+ end
+ return null
+ end
+
# The return type (null for a procedure)
var return_mtype: nullable MType
# The number of parameters
fun arity: Int do return mparameters.length
- # The number of non-default parameters
- #
- # The number of default parameters is then `arity-min_arity`.
- #
- # Note that there cannot be both varargs and default prameters, thus
- # if `vararg_rank != -1` then `min_arity` == `arity`
- fun min_arity: Int
- do
- if vararg_rank != -1 then return arity
- var res = 0
- for p in mparameters do
- if not p.is_default then res += 1
- end
- return res
- end
-
redef fun to_s
do
var b = new FlatBuffer
# Is the parameter a vararg?
var is_vararg: Bool
- # Is the parameter a default one?
- var is_default: Bool
-
redef fun to_s
do
if is_vararg then
do
if not self.mtype.need_anchor then return self
var newtype = self.mtype.resolve_for(mtype, anchor, mmodule, cleanup_virtual)
- var res = new MParameter(self.name, newtype, self.is_vararg, self.is_default)
+ var res = new MParameter(self.name, newtype, self.is_vararg)
return res
end
do
return self.is_init
end
+
+ # A specific method that is safe to call on null.
+ # Currently, only `==`, `!=` and `is_same_instance` are safe
+ fun is_null_safe: Bool do return name == "==" or name == "!=" or name == "is_same_instance"
end
# A global attribute
nitlanguage / nit.git / blobdiff