1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2008 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 # Compute and generate tables for classes and modules.
18 package compiling_global
20 private import compiling_icode
22 # Something that store color of table elements
24 var _colors
: HashMap[TableElt, Int] = new HashMap[TableElt, Int]
26 # The color of a table element.
27 fun color
(e
: TableElt): Int
32 # Is a table element already colored?
33 fun has_color
(e
: TableElt): Bool
35 return _colors
.has_key
(e
)
38 # Assign a color to a table element.
39 fun color
=(e
: TableElt, c
: Int)
43 for i
in [0..e
.length
[ do
44 _colors
[e
.item
(i
)] = idx
50 # All information and results of the global analysis.
53 # Associate global classes to compiled classes
54 readable var _compiled_classes
: HashMap[MMGlobalClass, CompiledClass] = new HashMap[MMGlobalClass, CompiledClass]
56 # The main module of the program globally analysed
57 readable var _module
: MMModule
59 # FIXME: do something better.
60 readable writable var _max_class_table_length
: Int = 0
62 init(module: MMModule)
68 class GlobalCompilerVisitor
69 special CompilerVisitor
70 # The global analysis result
71 readable var _global_analysis
: GlobalAnalysis
72 init(m
: MMModule, tc
: ToolContext, ga
: GlobalAnalysis)
79 # A compiled class is a class in a program
82 # The corresponding local class in the main module of the prgram
83 readable var _local_class
: MMLocalClass
85 # The identifier of the class
86 readable writable var _id
: Int = 0
88 # The full class table of the class
89 readable var _class_table
: Array[nullable TableElt] = new Array[nullable TableElt]
91 # The full instance table of the class
92 readable var _instance_table
: Array[nullable TableElt] = new Array[nullable TableElt]
94 # The proper class table part (no superclasses but all refinements)
95 readable writable var _class_layout
: TableEltComposite = new TableEltComposite(self)
97 # The proper instance table part (no superclasses but all refinements)
98 readable writable var _instance_layout
: TableEltComposite = new TableEltComposite(self)
100 init(c
: MMLocalClass) do _local_class
= c
103 redef class MMConcreteClass
104 # The table element of the subtype check
105 fun class_color_pos
: TableEltClassColor do return _class_color_pos
.as(not null)
106 var _class_color_pos
: nullable TableEltClassColor
108 # The proper local class table part (nor superclasses nor refinments)
109 readable var _class_layout
: Array[TableElt] = new Array[TableElt]
111 # The proper local instance table part (nor superclasses nor refinments)
112 readable var _instance_layout
: Array[TableElt] = new Array[TableElt]
114 # Build the local layout of the class and feed the module table
115 fun build_layout_in
(tc
: ToolContext, module_table
: Array[ModuleTableElt])
117 var clt
= _class_layout
118 var ilt
= _instance_layout
120 if global
.intro
== self then
121 module_table
.add
(new TableEltClassId(self))
122 var cpp
= new TableEltClassColor(self)
123 _class_color_pos
= cpp
124 module_table
.add
(cpp
)
125 clt
.add
(new TableEltClassInitTable(self))
127 for p
in local_local_properties
do
129 if pg
.intro
== p
then
130 if p
isa MMAttribute then
131 ilt
.add
(new TableEltAttr(p
))
132 else if p
isa MMMethod then
133 clt
.add
(new TableEltMeth(p
))
136 if p
isa MMMethod and p
.need_super
then
137 clt
.add
(new TableEltSuper(p
))
141 if not ilt
.is_empty
then
142 var teg
= new ModuleTableEltGroup
143 teg
.elements
.append
(ilt
)
144 module_table
.add
(teg
)
147 if not clt
.is_empty
then
148 var teg
= new ModuleTableEltGroup
149 teg
.elements
.append
(clt
)
150 module_table
.add
(teg
)
156 # The local table of the module (refers things introduced in the module)
157 var _local_table
: Array[ModuleTableElt] = new Array[ModuleTableElt]
159 # Builds the local tables and local classes layouts
160 fun local_analysis
(tc
: ToolContext)
162 for c
in local_classes
do
163 if c
isa MMConcreteClass then
164 c
.build_layout_in
(tc
, _local_table
)
169 # Do the complete global analysis
170 fun global_analysis
(cctx
: ToolContext): GlobalAnalysis
172 #print "Do the complete global analysis"
173 var ga
= new GlobalAnalysis(self)
174 var smallest_classes
= new Array[MMLocalClass]
175 var global_properties
= new HashSet[MMGlobalProperty]
176 var ctab
= new Array[TableElt]
177 var itab
= new Array[TableElt]
179 ctab
.add
(new TableEltClassSelfId)
180 ctab
.add
(new TableEltClassObjectSize)
181 itab
.add
(new TableEltVftPointer)
182 itab
.add
(new TableEltObjectId)
187 # We have to work on ALL the classes of the module
188 var classes
= new Array[MMLocalClass]
189 for c
in local_classes
do
190 c
.compute_super_classes
193 (new ClassSorter).sort
(classes
)
196 # Finish processing the class (if invisible)
198 c
.inherit_global_properties
200 # Associate a CompiledClass to the class
201 var cc
= new CompiledClass(c
)
202 ga
.compiled_classes
[c
.global
] = cc
204 # Assign a unique class identifier
205 # (negative are for primitive classes)
208 if c
.primitive_info
!= null then
210 pclassid
= pclassid
- 4
213 classid
= classid
+ 4
216 # Register is the class is a leaf
217 if c
.cshe
.direct_smallers
.is_empty
then
218 smallest_classes
.add
(c
)
221 # Store the colortableelt in the class table pool
222 var bc
= c
.global
.intro
223 assert bc
isa MMConcreteClass
224 ctab
.add
(bc
.class_color_pos
)
227 # Compute core and crown classes for colorization
228 var crown_classes
= new HashSet[MMLocalClass]
229 var core_classes
= new HashSet[MMLocalClass]
230 for c
in smallest_classes
do
231 while c
.cshe
.direct_greaters
.length
== 1 do
232 c
= c
.cshe
.direct_greaters
.first
235 core_classes
.add_all
(c
.cshe
.greaters_and_self
)
237 #print("nbclasses: {classes.length} leaves: {smallest_classes.length} crown: {crown_classes.length} core: {core_classes.length}")
239 # Colorize core color for typechecks
240 colorize
(ga
, ctab
, crown_classes
, 0)
242 # Compute tables for typechecks
245 var cc
= ga
.compiled_classes
[c
.global
]
246 if core_classes
.has
(c
) then
247 # For core classes, just build the table
248 build_tables_in
(cc
.class_table
, ga
, c
, ctab
)
249 if maxcolor
< cc
.class_table
.length
then maxcolor
= cc
.class_table
.length
251 # For other classes, it's easier: just append to the parent tables
252 var sc
= c
.cshe
.direct_greaters
.first
253 var scc
= ga
.compiled_classes
[sc
.global
]
254 assert cc
.class_table
.is_empty
255 cc
.class_table
.add_all
(scc
.class_table
)
256 var bc
= c
.global
.intro
257 assert bc
isa MMConcreteClass
258 var colpos
= bc
.class_color_pos
259 var colposcolor
= cc
.class_table
.length
260 ga
.color
(colpos
) = colposcolor
261 cc
.class_table
.add
(colpos
)
262 if maxcolor
< colposcolor
then maxcolor
= colposcolor
265 ga
.max_class_table_length
= maxcolor
+ 1
267 # Fill class table and instance tables pools
269 var cc
= ga
.compiled_classes
[c
.global
]
270 var cte
= cc
.class_layout
271 var ite
= cc
.instance_layout
272 for sc
in c
.crhe
.greaters_and_self
do
273 if sc
isa MMConcreteClass then
274 cte
.add
(sc
, sc
.class_layout
)
275 ite
.add
(sc
, sc
.instance_layout
)
279 if core_classes
.has
(c
) then
280 if cte
.length
> 0 then
283 if ite
.length
> 0 then
289 # Colorize all elements in pools tables
290 colorize
(ga
, ctab
, crown_classes
, maxcolor
+1)
291 colorize
(ga
, itab
, crown_classes
, 0)
293 # Build class and instance tables now things are colored
294 ga
.max_class_table_length
= 0
296 var cc
= ga
.compiled_classes
[c
.global
]
297 if core_classes
.has
(c
) then
298 # For core classes, just build the table
299 build_tables_in
(cc
.class_table
, ga
, c
, ctab
)
300 build_tables_in
(cc
.instance_table
, ga
, c
, itab
)
302 # For other classes, it's easier: just append to the parent tables
303 var sc
= c
.cshe
.direct_greaters
.first
304 var scc
= ga
.compiled_classes
[sc
.global
]
306 cc
.class_table
.add_all
(scc
.class_table
)
307 var bc
= c
.global
.intro
308 assert bc
isa MMConcreteClass
309 var colpos
= bc
.class_color_pos
310 cc
.class_table
[ga
.color
(colpos
)] = colpos
311 while cc
.class_table
.length
<= maxcolor
do
312 cc
.class_table
.add
(null)
314 append_to_table
(ga
, cc
.class_table
, cc
.class_layout
)
315 assert cc
.instance_table
.is_empty
316 cc
.instance_table
.add_all
(scc
.instance_table
)
317 append_to_table
(ga
, cc
.instance_table
, cc
.instance_layout
)
324 private fun append_to_table
(cc
: ColorContext, table
: Array[nullable TableElt], cmp
: TableEltComposite)
326 for j
in [0..cmp
.length
[ do
328 cc
.color
(e
) = table
.length
333 private fun build_tables_in
(table
: Array[nullable TableElt], ga
: GlobalAnalysis, c
: MMLocalClass, elts
: Array[TableElt])
335 var tab
= new HashMap[Int, TableElt]
338 if e
.is_related_to
(c
) then
339 var col
= ga
.color
(e
)
340 var l
= col
+ e
.length
349 if tab
.has_key
(i
) then
351 for j
in [0..e
.length
[ do
363 fun colorize
(ga
: GlobalAnalysis, elts
: Array[TableElt], classes
: Collection[MMLocalClass], startcolor
: Int)
365 var colors
= new HashMap[Int, Array[TableElt]]
366 var rel_classes
= new Array[MMLocalClass]
370 if ga
.has_color
(e
) then
375 if e
.is_related_to
(c
) then
379 var trycolor
= startcolor
380 while trycolor
!= color
do
382 for c
in rel_classes
do
385 if colors
.has_key
(trycolor
+ idx
) and not free_color
(colors
[trycolor
+ idx
], c
) then
386 trycolor
= trycolor
+ idx
+ 1
396 for idx
in [0..len
[ do
397 if colors
.has_key
(color
+ idx
) then
398 colors
[color
+ idx
].add
(e
)
400 colors
[color
+ idx
] = [e
]
406 private fun free_color
(es
: Array[TableElt], c
: MMLocalClass): Bool
409 if e2
.is_related_to
(c
) then
416 # Compile module and class tables
417 fun compile_tables_to_c
(v
: GlobalCompilerVisitor)
419 for m
in mhe
.greaters_and_self
do
420 m
.compile_local_table_to_c
(v
)
423 for c
in local_classes
do
424 c
.compile_tables_to_c
(v
)
426 var s
= new Buffer.from
("classtable_t TAG2VFT[4] = \{NULL")
427 for t
in ["Int","Char","Bool"] do
428 if has_global_class_named
(t
.to_symbol
) then
429 s
.append
(", (const classtable_t)VFT_{t}")
438 # Declare class table (for _sep.h)
439 fun declare_class_tables_to_c
(v
: GlobalCompilerVisitor)
441 for c
in local_classes
do
442 if c
.global
.module == self then
443 c
.declare_tables_to_c
(v
)
448 # Compile main part (for _table.c)
449 fun compile_main_part
(v
: GlobalCompilerVisitor)
451 v
.add_instr
("int main(int argc, char **argv) \{")
453 v
.add_instr
("prepare_signals();")
454 v
.add_instr
("glob_argc = argc; glob_argv = argv;")
455 var sysname
= once
"Sys".to_symbol
456 if not has_global_class_named
(sysname
) then
459 var sys
= class_by_name
(sysname
)
460 var name
= once
"main".to_symbol
461 if not sys
.has_global_property_by_name
(name
) then
464 var mainm
= sys
.select_method
(name
)
465 v
.add_instr
("G_sys = NEW_Sys();")
466 v
.add_instr
("register_static_object(&G_sys);")
467 v
.add_instr
("{mainm.cname}(G_sys);")
470 v
.add_instr
("return 0;")
476 fun compile_mod_to_c
(v
: GlobalCompilerVisitor)
478 v
.add_decl
("extern const char *LOCATE_{name};")
479 if not v
.tc
.global
then
480 v
.add_decl
("extern const int SFT_{name}[];")
483 for e
in _local_table
do
486 value
= "{e.value(v.global_analysis)}"
488 value
= "SFT_{name}[{i}]"
491 e
.compile_macros
(v
, value
)
493 for c
in local_classes
do
494 if not c
isa MMConcreteClass then continue
495 for pg
in c
.global_properties
do
497 if p
.local_class
== c
and p
isa MMMethod then
498 p
.compile_property_to_c
(v
)
500 if pg
.is_init_for
(c
) then
501 # Declare constructors
502 var params
= new Array[String]
503 for j
in [0..p
.signature
.arity
[ do
504 params
.add
("val_t p{j}")
506 v
.add_decl
("val_t NEW_{c}_{p.global.intro.cname}({params.join(", ")});")
512 # Compile module file for the current module
513 fun compile_local_table_to_c
(v
: GlobalCompilerVisitor)
515 v
.add_instr
("const char *LOCATE_{name} = \"{location.file}\
";")
517 if v
.tc
.global
or _local_table
.is_empty
then
521 v
.add_instr
("const int SFT_{name}[{_local_table.length}] = \{")
523 for e
in _local_table
do
524 v
.add_instr
(e
.value
(v
.global_analysis
) + ",")
531 ###############################################################################
533 # An element of a class, an instance or a module table
534 abstract class AbsTableElt
535 # Compile the macro needed to use the element and other related elements
536 fun compile_macros
(v
: GlobalCompilerVisitor, value
: String) is abstract
539 # An element of a class or an instance table
540 # Such an elements represent method function pointers, attribute values, etc.
541 abstract class TableElt
543 # Is the element conflict to class `c' (used for coloring)
544 fun is_related_to
(c
: MMLocalClass): Bool is abstract
546 # Number of sub-elements. 1 if none
547 fun length
: Int do return 1
549 # Access the ith subelement.
550 fun item
(i
: Int): TableElt do return self
552 # Return the value of the element for a given class
553 fun compile_to_c
(v
: GlobalCompilerVisitor, c
: MMLocalClass): String is abstract
556 # An element of a module table
557 # Such an elements represent colors or identifiers
558 abstract class ModuleTableElt
560 # Return the value of the element once the global analisys is performed
561 fun value
(ga
: GlobalAnalysis): String is abstract
564 # An element of a module table that represents a group of TableElt defined in the same local class
565 class ModuleTableEltGroup
566 special ModuleTableElt
567 readable var _elements
: Array[TableElt] = new Array[TableElt]
569 redef fun value
(ga
) do return "{ga.color(_elements.first)} /* Group of ? */"
570 redef fun compile_macros
(v
, value
)
573 for e
in _elements
do
574 e
.compile_macros
(v
, "{value} + {i}")
580 # An element that represents a class property
581 abstract class TableEltProp
583 var _property
: MMLocalProperty
585 init(p
: MMLocalProperty)
591 # An element that represents a function pointer to a global method
594 redef fun compile_macros
(v
, value
)
596 var pg
= _property
.global
597 v
.add_decl
("#define {pg.meth_call}(recv) (({pg.intro.cname}_t)CALL((recv), ({value})))")
600 redef fun compile_to_c
(v
, c
)
602 var p
= c
[_property
.global
]
607 # An element that represents a function pointer to the super method of a local method
610 redef fun compile_macros
(v
, value
)
613 v
.add_decl
("#define {p.super_meth_call}(recv) (({p.cname}_t)CALL((recv), ({value})))")
616 redef fun compile_to_c
(v
, c
)
618 var pc
= _property
.local_class
619 var g
= _property
.global
620 var lin
= c
.che
.linear_extension
623 #print "{c.module}::{c} for {pc.module}::{pc}::{_property} try {s.module}:{s}"
626 else if found
and c
.che
< s
then
627 if s
.has_global_property
(g
) then
628 #print "found {s.module}::{s}::{p}"
637 # An element that represents the value stored for a global attribute
640 redef fun compile_macros
(v
, value
)
642 var pg
= _property
.global
643 v
.add_decl
("#define {pg.attr_access}(recv) ATTR(recv, ({value}))")
646 redef fun compile_to_c
(v
, c
)
648 var ga
= v
.global_analysis
649 var p
= c
[_property
.global
]
650 return "/* {ga.color(self)}: Attribute {c}::{p} */"
654 # An element representing a class information
655 class AbsTableEltClass
657 # The local class where the information comes from
658 var _local_class
: MMLocalClass
660 init(c
: MMLocalClass)
665 # The C macro name refering the value
666 fun symbol
: String is abstract
668 redef fun compile_macros
(v
, value
)
670 v
.add_decl
("#define {symbol} ({value})")
674 # An element of a class table representing a class information
677 special AbsTableEltClass
678 redef fun is_related_to
(c
)
680 var bc
= c
.module[_local_class
.global
]
685 # An element representing the id of a class in a module table
686 class TableEltClassId
687 special ModuleTableElt
688 special AbsTableEltClass
689 redef fun symbol
do return _local_class
.global
.id_id
693 return "{ga.compiled_classes[_local_class.global].id} /* Id of {_local_class} */"
697 # An element representing the constructor marker position in a class table
698 class TableEltClassInitTable
699 special TableEltClass
700 redef fun symbol
do return _local_class
.global
.init_table_pos_id
702 redef fun compile_to_c
(v
, c
)
704 var ga
= v
.global_analysis
705 var cc
= ga
.compiled_classes
[_local_class
.global
]
706 var linext
= c
.cshe
.reverse_linear_extension
708 while linext
[i
].global
!= _local_class
.global
do
711 return "{i} /* {ga.color(self)}: {c} < {cc.local_class}: superclass init_table position */"
715 # An element used for a cast
716 # Note: this element is both a TableElt and a ModuleTableElt.
717 # At the TableElt offset, there is the id of the super-class
718 # At the ModuleTableElt offset, there is the TableElt offset (ie. the color of the super-class).
719 class TableEltClassColor
720 special TableEltClass
721 special ModuleTableElt
722 redef fun symbol
do return _local_class
.global
.color_id
726 return "{ga.color(self)} /* Color of {_local_class} */"
729 redef fun compile_to_c
(v
, c
)
731 var ga
= v
.global_analysis
732 var cc
= ga
.compiled_classes
[_local_class
.global
]
733 return "{cc.id} /* {ga.color(self)}: {c} < {cc.local_class}: superclass typecheck marker */"
737 # A Group of elements introduced in the same global-class that are colored together
738 class TableEltComposite
740 var _table
: Array[TableElt]
741 var _cc
: CompiledClass
742 var _offsets
: HashMap[MMLocalClass, Int]
743 redef fun length
do return _table
.length
744 redef fun is_related_to
(c
) do return c
.cshe
<= _cc
.local_class
746 fun add
(c
: MMLocalClass, tab
: Array[TableElt])
748 _offsets
[c
] = _table
.length
752 redef fun item
(i
) do return _table
[i
]
754 redef fun compile_to_c
(v
, c
) do abort
756 init(cc
: CompiledClass)
759 _table
= new Array[TableElt]
760 _offsets
= new HashMap[MMLocalClass, Int]
764 # The element that represent the class id
765 class TableEltClassSelfId
767 redef fun is_related_to
(c
) do return true
768 redef fun compile_to_c
(v
, c
)
770 var ga
= v
.global_analysis
771 return "{v.global_analysis.compiled_classes[c.global].id} /* {ga.color(self)}: Identity */"
776 # The element that represent the Object Size
777 class TableEltClassObjectSize
779 redef fun is_related_to
(c
) do return true
780 redef fun compile_to_c
(v
, c
)
783 var ga
= v
.global_analysis
784 if c
.name
== "NativeArray".to_symbol
then
787 var cc
= ga
.compiled_classes
[c
.global
]
788 var itab
= cc
.instance_table
793 return "{nb} /* {ga.color(self)}: Object size (-1 if a NativeArray)*/"
797 # The element that represent the object id
798 class TableEltObjectId
800 redef fun is_related_to
(c
) do return true
801 redef fun compile_to_c
(v
, c
)
803 var ga
= v
.global_analysis
804 return "/* {ga.color(self)}: Object_id */"
809 class TableEltVftPointer
811 redef fun is_related_to
(c
) do return true
812 redef fun compile_to_c
(v
, c
)
814 var ga
= v
.global_analysis
815 return "/* {ga.color(self)}: Pointer to the classtable */"
819 ###############################################################################
821 # Used to sort local class in a deterministic total order
822 # The total order superset the class refinement and the class specialisation relations
824 special AbstractSorter[MMLocalClass]
825 redef fun compare
(a
, b
) do return a
.compare
(b
)
829 redef class MMLocalClass
830 # Comparaison in a total order that superset the class refinement and the class specialisation relations
831 fun compare
(b
: MMLocalClass): Int
836 else if a
.module.mhe
< b
.module then
838 else if b
.module.mhe
< a
.module then
848 return b
.name
.to_s
<=> a
.name
.to_s
852 # Declaration and macros related to the class table
853 fun declare_tables_to_c
(v
: GlobalCompilerVisitor)
856 var pi
= primitive_info
857 v
.add_decl
("extern const classtable_elt_t VFT_{name}[];")
858 if name
== "NativeArray".to_symbol
then
859 v
.add_decl
("val_t NEW_NativeArray(size_t length, size_t size);")
860 else if pi
== null then
861 # v.add_decl("val_t NEW_{name}(void);")
862 else if not pi
.tagged
then
864 var tbox
= "struct TBOX_{name}"
865 v
.add_decl
("{tbox} \{ const classtable_elt_t * vft; bigint object_id; {t} val;};")
866 v
.add_decl
("val_t BOX_{name}({t} val);")
867 v
.add_decl
("#define UNBOX_{name}(x) ((({tbox} *)(VAL2OBJ(x)))->val)")
871 # Compilation of table and new (or box)
872 fun compile_tables_to_c
(v
: GlobalCompilerVisitor)
874 var cc
= v
.global_analysis
.compiled_classes
[self.global
]
875 var ctab
= cc
.class_table
876 var clen
= ctab
.length
877 if v
.global_analysis
.max_class_table_length
> ctab
.length
then
878 clen
= v
.global_analysis
.max_class_table_length
881 v
.add_instr
("const classtable_elt_t VFT_{name}[{clen}] = \{")
885 v
.add_instr
("\{0} /* Class Hole :( */,")
887 v
.add_instr
("\{(bigint) {e.compile_to_c(v, self)}},")
890 if clen
> ctab
.length
then
891 v
.add_instr
("\{0},"*(clen-ctab
.length
))
895 var itab
= cc
.instance_table
898 v
.add_instr
("/* Instance Hole :( */")
900 v
.add_instr
(e
.compile_to_c
(v
, self))
904 var pi
= primitive_info
905 if name
== "NativeArray".to_symbol
then
906 v
.add_instr
("val_t NEW_NativeArray(size_t length, size_t size) \{")
908 v
.add_instr
("Nit_NativeArray array;")
909 v
.add_instr
("array = (Nit_NativeArray)alloc(sizeof(struct Nit_NativeArray) + ((length - 1) * size));")
910 v
.add_instr
("array->vft = (classtable_elt_t*)VFT_{name};")
911 v
.add_instr
("array->object_id = object_id_counter;")
912 v
.add_instr
("object_id_counter = object_id_counter + 1;")
913 v
.add_instr
("array->size = length;")
914 v
.add_instr
("return OBJ2VAL(array);")
917 else if pi
== null then
919 var iself
= new IRegister(get_type
)
921 var iroutine
= new IRoutine(new Array[IRegister], iself
)
922 var icb
= new ICodeBuilder(module, iroutine
)
923 var obj
= new INative("OBJ2VAL(obj)", null)
927 for g
in global_properties
do
929 var t
= p
.signature
.return_type
930 if p
isa MMAttribute and t
!= null then
932 if ir
== null then continue
933 # FIXME: Not compatible with sep compilation
934 var e
= icb
.inline_routine
(ir
, iselfa
, null).as(not null)
935 icb
.stmt
(new IAttrWrite(p
, iself
, e
))
939 var cname
= "NEW_{name}"
940 var args
= iroutine
.compile_signature_to_c
(v
, cname
, "new {name}", null, null)
943 v
.add_decl
("obj_t obj;")
944 v
.add_instr
("obj = alloc(sizeof(val_t) * {itab.length});")
945 v
.add_instr
("obj->vft = (classtable_elt_t*)VFT_{name};")
946 v
.add_instr
("obj[1].object_id = object_id_counter;")
947 v
.add_instr
("object_id_counter = object_id_counter + 1;")
948 var r
= iroutine
.compile_to_c
(v
, cname
, args
).as(not null)
949 v
.add_instr
("return {r};")
950 ctx_old
.append
(v
.ctx
)
958 var iself
= new IRegister(get_type
)
960 var iroutine
= new IRoutine(iselfa
, null)
961 var icb
= new ICodeBuilder(module, iroutine
)
962 for g
in global_properties
do
964 var t
= p
.signature
.return_type
965 if p
isa MMAttribute and t
!= null and not t
.is_nullable
then
966 icb
.add_attr_check
(p
, iself
)
969 var cname
= "CHECKNEW_{name}"
970 var args
= iroutine
.compile_signature_to_c
(v
, cname
, "check new {name}", null, null)
973 iroutine
.compile_to_c
(v
, cname
, args
)
974 ctx_old
.append
(v
.ctx
)
980 var init_table_size
= cshe
.greaters
.length
+ 1
981 var init_table_decl
= "int init_table[{init_table_size}] = \{0{", 0" * (init_table_size-1)}};"
983 for g
in global_properties
do
985 # FIXME skip invisible constructors
986 if not p
.global
.is_init_for
(self) then continue
987 assert p
isa MMMethod
989 var iself
= new IRegister(get_type
)
990 var iparams
= new Array[IRegister]
991 for i
in [0..p
.signature
.arity
[ do iparams
.add
(new IRegister(p
.signature
[i
]))
992 var iroutine
= new IRoutine(iparams
, iself
)
993 iroutine
.location
= p
.iroutine
.location
994 var icb
= new ICodeBuilder(module, iroutine
)
996 var inew
= new INative("NEW_{name}()", null)
1000 iargs
.add_all
(iparams
)
1001 icb
.stmt
(new INative("{p.cname}(@@@{", @@@"*iparams.length}, init_table)", iargs
))
1002 icb
.stmt
(new INative("CHECKNEW_{name}(@@@)", [iself
]))
1004 var cname
= "NEW_{self}_{p.global.intro.cname}"
1005 var new_args
= iroutine
.compile_signature_to_c
(v
, cname
, "new {self} {p.full_name}", null, null)
1007 v
.ctx
= new CContext
1008 v
.add_instr
(init_table_decl
)
1009 var e
= iroutine
.compile_to_c
(v
, cname
, new_args
).as(not null)
1010 v
.add_instr
("return {e};")
1011 ctx_old
.append
(v
.ctx
)
1016 else if not pi
.tagged
then
1018 var tbox
= "struct TBOX_{name}"
1019 v
.add_instr
("val_t BOX_{name}({t} val) \{")
1021 v
.add_instr
("{tbox} *box = ({tbox}*)alloc(sizeof({tbox}));")
1022 v
.add_instr
("box->vft = VFT_{name};")
1023 v
.add_instr
("box->val = val;")
1024 v
.add_instr
("box->object_id = object_id_counter;")
1025 v
.add_instr
("object_id_counter = object_id_counter + 1;")
1026 v
.add_instr
("return OBJ2VAL(box);")
1033 redef class MMMethod
1034 fun compile_property_to_c
(v
: CompilerVisitor)
1039 var more_params
: nullable String = null
1040 if global
.is_init
then more_params
= "int* init_table"
1041 var args
= ir
.compile_signature_to_c
(v
, cname
, full_name
, null, more_params
)
1043 v
.ctx
= new CContext
1045 v
.out_contexts
.clear
1047 var itpos
: nullable String = null
1048 if global
.is_init
then
1049 itpos
= "itpos{v.new_number}"
1050 v
.add_decl
("int {itpos} = VAL2OBJ({args.first})->vft[{local_class.global.init_table_pos_id}].i;")
1051 v
.add_instr
("if (init_table[{itpos}]) return;")
1054 var s
= ir
.compile_to_c
(v
, cname
, args
)
1056 if itpos
!= null then
1057 v
.add_instr
("init_table[{itpos}] = 1;")
1060 v
.add_instr
("return;")
1062 v
.add_instr
("return ", s
, ";")
1065 ctx_old
.append
(v
.ctx
)
1070 for ctx
in v
.out_contexts
do v
.ctx
.merge
(ctx
)