tools: accept statement block in attributes
[nit.git] / src / rapid_type_analysis.nit
index 1017b08..378c31d 100644 (file)
 # It is quite efficient but the type set is global and pollutes each call site.
 module rapid_type_analysis
 
-import model
-import modelbuilder
-import typing
-import auto_super_init
+import semantize
 
-import csv # for live_types_to_csv
-import ordered_tree # for live_methods_to_tree
+private import csv # for live_types_to_csv
+private import ordered_tree # for live_methods_to_tree
 
 private import more_collections
 
 redef class ModelBuilder
+       # Performs a rapid-type-analysis on the program associated with `mainmodule`.
        fun do_rapid_type_analysis(mainmodule: MModule): RapidTypeAnalysis
        do
                var analysis = new RapidTypeAnalysis(self, mainmodule)
@@ -88,7 +86,7 @@ class RapidTypeAnalysis
                var mtype = callsite.recv
                var anchor = callsite.anchor
                if anchor != null then mtype = mtype.anchor_to(callsite.mmodule, anchor)
-               if mtype isa MNullableType then mtype = mtype.mtype
+               mtype = mtype.as_notnullable
                assert mtype isa MClassType
                mtype = mtype.mclass.intro.bound_mtype
                var mproperty = callsite.mproperty
@@ -164,6 +162,9 @@ class RapidTypeAnalysis
        # Methods that are still candidate to the try_send
        private var totry_methods = new HashSet[MMethod]
 
+       # Methods that are are no more candidate to the try_send
+       private var totry_methods_to_remove = new Array[MMethod]
+
        # Methods that are or were candidate to the try_send
        # Used to ensure that try_send is only used once
        private var try_methods = new HashSet[MMethod]
@@ -187,19 +188,28 @@ class RapidTypeAnalysis
                if initprop != null then
                        add_send(maintype, initprop)
                end
-               var mainprop = mainmodule.try_get_primitive_method("main", maintype.mclass)
+               var mainprop = mainmodule.try_get_primitive_method("run", maintype.mclass) or else
+                       mainmodule.try_get_primitive_method("main", maintype.mclass)
                if mainprop != null then
                        add_send(maintype, mainprop)
                end
 
+               var finalizable_type = mainmodule.finalizable_type
+               if finalizable_type != null then
+                       var finalize_meth = mainmodule.try_get_primitive_method("finalize", finalizable_type.mclass)
+                       if finalize_meth != null then add_send(finalizable_type, finalize_meth)
+               end
+
                # Force primitive types
                force_alive("Bool")
                force_alive("Int")
                force_alive("Float")
                force_alive("Char")
+               force_alive("Pointer")
 
                while not todo.is_empty do
                        var mmethoddef = todo.shift
+                       var mmeth = mmethoddef.mproperty
                        #print "# visit {mmethoddef}"
                        var v = new RapidTypeVisitor(self, mmethoddef.mclassdef.bound_mtype, mmethoddef)
 
@@ -215,27 +225,28 @@ class RapidTypeAnalysis
                                v.add_monomorphic_send(vararg, self.modelbuilder.force_get_primitive_method(node, "with_native", vararg.mclass, self.mainmodule))
                        end
 
-
-                       for i in [0..mmethoddef.msignature.arity[ do
-                               var origtype = mmethoddef.mproperty.intro.msignature.mparameters[i].mtype
+                       # TODO? new_msignature
+                       var sig = mmethoddef.msignature.as(not null)
+                       var osig = mmeth.intro.msignature.as(not null)
+                       for i in [0..sig.arity[ do
+                               var origtype = osig.mparameters[i].mtype
                                if not origtype.need_anchor then continue # skip non covariant stuff
-                               var paramtype = mmethoddef.msignature.mparameters[i].mtype
-                               #paramtype = v.cleanup_type(paramtype).as(not null)
+                               var paramtype = sig.mparameters[i].mtype
                                add_cast(paramtype)
                        end
 
                        if not modelbuilder.mpropdef2npropdef.has_key(mmethoddef) then
                                # It is an init for a class?
-                               if mmethoddef.mproperty.name == "init" then
+                               if mmeth.is_root_init then
                                        var nclassdef = self.modelbuilder.mclassdef2nclassdef[mmethoddef.mclassdef]
-                                       var super_inits = nclassdef.super_inits
-                                       if super_inits != null then
-                                               #assert args.length == 1
-                                               for su in super_inits do
-                                                       v.add_monomorphic_send(v.receiver, su)
-                                               end
-                                       end
+                                       assert mmethoddef == nclassdef.mfree_init
 
+                                       if mmethoddef.mproperty.is_root_init and not mmethoddef.is_intro then
+                                               self.add_super_send(v.receiver, mmethoddef)
+                                       end
+                               else if mmethoddef.constant_value != null then
+                                       # Make the return type live
+                                       v.add_type(mmethoddef.msignature.return_mtype.as(MClassType))
                                else
                                        abort
                                end
@@ -244,27 +255,24 @@ class RapidTypeAnalysis
 
                        var npropdef = modelbuilder.mpropdef2npropdef[mmethoddef]
 
-                       if npropdef isa AConcreteMethPropdef then
+                       if npropdef isa AMethPropdef  then
                                var auto_super_inits = npropdef.auto_super_inits
                                if auto_super_inits != null then
                                        for auto_super_init in auto_super_inits do
                                                v.add_callsite(auto_super_init)
                                        end
                                end
-                       else if npropdef isa AInternMethPropdef or
-                         (npropdef isa AExternMethPropdef and npropdef.n_extern != null) then
+                               if npropdef.auto_super_call then
+                                       self.add_super_send(v.receiver, mmethoddef)
+                               end
+                       end
+
+                       if mmethoddef.is_intern or mmethoddef.is_extern then
                                # UGLY: We force the "instantation" of the concrete return type if any
                                var ret = mmethoddef.msignature.return_mtype
                                if ret != null and ret isa MClassType and ret.mclass.kind != abstract_kind and ret.mclass.kind != interface_kind then
                                        v.add_type(ret)
                                end
-                       else if npropdef isa AExternMethPropdef then
-                               var nclassdef = npropdef.parent.as(AClassdef)
-                               v.enter_visit(npropdef)
-                       else if npropdef isa AExternInitPropdef then
-                               v.add_type(v.receiver)
-                       else
-
                        end
 
                        v.enter_visit(npropdef)
@@ -330,6 +338,10 @@ class RapidTypeAnalysis
                for p in totry_methods do try_send(mtype, p)
                for p in live_super_sends do try_super_send(mtype, p)
 
+               # Remove cleared ones
+               for p in totry_methods_to_remove do totry_methods.remove(p)
+               totry_methods_to_remove.clear
+
                var bound_mtype = mtype.anchor_to(mainmodule, recv)
                for cd in bound_mtype.collect_mclassdefs(mainmodule)
                do
@@ -337,11 +349,12 @@ class RapidTypeAnalysis
                        var nclassdef = self.modelbuilder.mclassdef2nclassdef[cd]
                        for npropdef in nclassdef.n_propdefs do
                                if not npropdef isa AAttrPropdef then continue
-                               var nexpr = npropdef.n_expr
-                               if nexpr == null then continue
+                               if not npropdef.has_value then continue
+
                                var mpropdef = npropdef.mpropdef.as(not null)
                                var v = new RapidTypeVisitor(self, bound_mtype, mpropdef)
-                               v.enter_visit(nexpr)
+                               v.enter_visit(npropdef.n_expr)
+                               v.enter_visit(npropdef.n_block)
                        end
                end
 
@@ -378,7 +391,7 @@ class RapidTypeAnalysis
                        if not live_methoddefs.has(d) then return
                end
                #print "full property: {mpropdef.mproperty} for {mpropdef.mproperty.mpropdefs.length} definitions"
-               totry_methods.remove(mpropdef.mproperty)
+               totry_methods_to_remove.add(mpropdef.mproperty)
        end
 
        fun add_send(recv: MType, mproperty: MMethod)
@@ -411,11 +424,12 @@ class RapidTypeAnalysis
 
        fun add_super_send(recv: MType, mpropdef: MMethodDef)
        do
+               assert mpropdef.has_supercall
                if live_super_sends.has(mpropdef) then return
                #print "new super prop: {mpropdef}"
                live_super_sends.add(mpropdef)
-               for t in live_types do
-                       try_super_send(t, mpropdef)
+               for c in live_classes do
+                       try_super_send(c.intro.bound_mtype, mpropdef)
                end
        end
 end
@@ -453,7 +467,7 @@ class RapidTypeVisitor
        do
                mtype = mtype.anchor_to(self.analysis.mainmodule, self.receiver)
                if mtype isa MNullType then return null
-               if mtype isa MNullableType then mtype = mtype.mtype
+               mtype = mtype.as_notnullable
                assert mtype isa MClassType
                assert not mtype.need_anchor
                return mtype
@@ -473,13 +487,22 @@ class RapidTypeVisitor
 
        fun add_type(mtype: MClassType) do analysis.add_new(receiver, mtype)
 
-       fun add_monomorphic_send(mtype: MType, mproperty: MMethod) do analysis.try_send(mtype.as(MClassType), mproperty)
+       fun add_monomorphic_send(mtype: MType, mproperty: MMethod)
+       do
+               analysis.live_methods.add(mproperty)
+               analysis.try_send(mtype.as(MClassType), mproperty)
+       end
 
        fun add_send(mtype: MType, mproperty: MMethod) do analysis.add_send(mtype, mproperty)
 
        fun add_cast_type(mtype: MType) do analysis.add_cast(mtype)
 
        fun add_callsite(callsite: nullable CallSite) do if callsite != null then
+               for m in callsite.mpropdef.initializers do
+                       if m isa MMethod then
+                               analysis.add_send(callsite.recv, m)
+                       end
+               end
                analysis.add_send(callsite.recv, callsite.mproperty)
                analysis.live_callsites.add(callsite)
        end
@@ -654,13 +677,15 @@ redef class AForExpr
                        abort
                end
                v.add_callsite(self.method_next)
+               var mf = self.method_finish
+               if mf != null then v.add_callsite(mf)
        end
 end
 
 redef class ANewExpr
        redef fun accept_rapid_type_visitor(v)
        do
-               var mtype = self.mtype.as(MClassType)
+               var mtype = self.recvtype.as(not null)
                v.add_type(mtype)
                v.add_callsite(callsite)
        end