1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 # Separate compilation of a Nit program
16 module separate_compiler
18 import abstract_compiler
20 import rapid_type_analysis
22 # Add separate compiler specific options
23 redef class ToolContext
25 var opt_separate
= new OptionBool("Use separate compilation", "--separate")
27 var opt_no_inline_intern
= new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
28 # --no-union-attribute
29 var opt_no_union_attribute
= new OptionBool("Put primitive attibutes in a box instead of an union", "--no-union-attribute")
30 # --no-shortcut-equate
31 var opt_no_shortcut_equate
= new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
32 # --inline-coloring-numbers
33 var opt_inline_coloring_numbers
= new OptionBool("Inline colors and ids (semi-global)", "--inline-coloring-numbers")
34 # --inline-some-methods
35 var opt_inline_some_methods
= new OptionBool("Allow the separate compiler to inline some methods (semi-global)", "--inline-some-methods")
36 # --direct-call-monomorph
37 var opt_direct_call_monomorph
= new OptionBool("Allow the separate compiler to direct call monomorph sites (semi-global)", "--direct-call-monomorph")
39 var opt_skip_dead_methods
= new OptionBool("Do not compile dead methods (semi-global)", "--skip-dead-methods")
41 var opt_semi_global
= new OptionBool("Enable all semi-global optimizations", "--semi-global")
42 # --no-colo-dead-methods
43 var opt_colo_dead_methods
= new OptionBool("Force colorization of dead methods", "--colo-dead-methods")
45 var opt_tables_metrics
= new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
50 self.option_context
.add_option
(self.opt_separate
)
51 self.option_context
.add_option
(self.opt_no_inline_intern
)
52 self.option_context
.add_option
(self.opt_no_union_attribute
)
53 self.option_context
.add_option
(self.opt_no_shortcut_equate
)
54 self.option_context
.add_option
(self.opt_inline_coloring_numbers
, opt_inline_some_methods
, opt_direct_call_monomorph
, opt_skip_dead_methods
, opt_semi_global
)
55 self.option_context
.add_option
(self.opt_colo_dead_methods
)
56 self.option_context
.add_option
(self.opt_tables_metrics
)
59 redef fun process_options
(args
)
64 if tc
.opt_semi_global
.value
then
65 tc
.opt_inline_coloring_numbers
.value
= true
66 tc
.opt_inline_some_methods
.value
= true
67 tc
.opt_direct_call_monomorph
.value
= true
68 tc
.opt_skip_dead_methods
.value
= true
72 var separate_compiler_phase
= new SeparateCompilerPhase(self, null)
75 class SeparateCompilerPhase
77 redef fun process_mainmodule
(mainmodule
, given_mmodules
) do
78 if not toolcontext
.opt_separate
.value
then return
80 var modelbuilder
= toolcontext
.modelbuilder
81 var analysis
= modelbuilder
.do_rapid_type_analysis
(mainmodule
)
82 modelbuilder
.run_separate_compiler
(mainmodule
, analysis
)
86 redef class ModelBuilder
87 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: nullable RapidTypeAnalysis)
90 self.toolcontext
.info
("*** GENERATING C ***", 1)
92 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
93 compiler
.do_compilation
94 compiler
.display_stats
97 self.toolcontext
.info
("*** END GENERATING C: {time1-time0} ***", 2)
98 write_and_make
(compiler
)
101 # Count number of invocations by VFT
102 private var nb_invok_by_tables
= 0
103 # Count number of invocations by direct call
104 private var nb_invok_by_direct
= 0
105 # Count number of invocations by inlining
106 private var nb_invok_by_inline
= 0
109 # Singleton that store the knowledge about the separate compilation process
110 class SeparateCompiler
111 super AbstractCompiler
113 redef type VISITOR: SeparateCompilerVisitor
115 # The result of the RTA (used to know live types and methods)
116 var runtime_type_analysis
: nullable RapidTypeAnalysis
118 private var undead_types
: Set[MType] = new HashSet[MType]
119 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
121 private var type_ids
: Map[MType, Int] is noinit
122 private var type_colors
: Map[MType, Int] is noinit
123 private var opentype_colors
: Map[MType, Int] is noinit
124 protected var method_colors
: Map[PropertyLayoutElement, Int] is noinit
125 protected var attr_colors
: Map[MAttribute, Int] is noinit
128 var file
= new_file
("nit.common")
129 self.header
= new CodeWriter(file
)
130 self.compile_box_kinds
133 redef fun do_compilation
136 compiler
.compile_header
138 var c_name
= mainmodule
.c_name
140 # compile class structures
141 modelbuilder
.toolcontext
.info
("Property coloring", 2)
142 compiler
.new_file
("{c_name}.classes")
143 compiler
.do_property_coloring
144 for m
in mainmodule
.in_importation
.greaters
do
145 for mclass
in m
.intro_mclasses
do
146 #if mclass.kind == abstract_kind or mclass.kind == interface_kind then continue
147 compiler
.compile_class_to_c
(mclass
)
151 # The main function of the C
152 compiler
.new_file
("{c_name}.main")
153 compiler
.compile_nitni_global_ref_functions
154 compiler
.compile_main_function
155 compiler
.compile_finalizer_function
158 for m
in mainmodule
.in_importation
.greaters
do
159 modelbuilder
.toolcontext
.info
("Generate C for module {m.full_name}", 2)
160 compiler
.new_file
("{m.c_name}.sep")
161 compiler
.compile_module_to_c
(m
)
164 # compile live & cast type structures
165 modelbuilder
.toolcontext
.info
("Type coloring", 2)
166 compiler
.new_file
("{c_name}.types")
167 compiler
.compile_types
170 # Color and compile type structures and cast information
175 var mtypes
= compiler
.do_type_coloring
177 compiler
.compile_type_to_c
(t
)
179 # compile remaining types structures (useless but needed for the symbol resolution at link-time)
180 for t
in compiler
.undead_types
do
181 if mtypes
.has
(t
) then continue
182 compiler
.compile_type_to_c
(t
)
187 redef fun compile_header_structs
do
188 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
189 self.compile_header_attribute_structs
190 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
192 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
193 self.header
.add_decl
("struct type \{ int id; const char *name; int color; short int is_nullable; const struct types *resolution_table; int table_size; int type_table[]; \}; /* general C type representing a Nit type. */")
194 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
195 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
196 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
199 fun compile_header_attribute_structs
201 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
202 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
204 self.header
.add_decl
("typedef union \{")
205 self.header
.add_decl
("void* val;")
206 for c
, v
in self.box_kinds
do
207 var t
= c
.mclass_type
209 # `Pointer` reuse the `val` field
210 if t
.mclass
.name
== "Pointer" then continue
212 self.header
.add_decl
("{t.ctype_extern} {t.ctypename};")
214 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
218 fun compile_box_kinds
220 # Collect all bas box class
221 # FIXME: this is not completely fine with a separate compilation scheme
222 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
223 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
224 if classes
== null then continue
225 assert classes
.length
== 1 else print classes
.join
(", ")
226 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
230 var box_kinds
= new HashMap[MClass, Int]
232 fun box_kind_of
(mclass
: MClass): Int
234 #var pointer_type = self.mainmodule.pointer_type
235 #if mclass.mclass_type.ctype == "val*" or mclass.mclass_type.is_subtype(self.mainmodule, mclass.mclass_type pointer_type) then
236 if mclass
.mclass_type
.ctype_extern
== "val*" then
238 else if mclass
.kind
== extern_kind
and mclass
.name
!= "NativeString" then
239 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
241 return self.box_kinds
[mclass
]
246 fun compile_color_consts
(colors
: Map[Object, Int]) do
248 for m
, c
in colors
do
249 compile_color_const
(v
, m
, c
)
253 fun compile_color_const
(v
: SeparateCompilerVisitor, m
: Object, color
: Int) do
254 if color_consts_done
.has
(m
) then return
255 if m
isa MEntity then
256 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
257 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
259 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
260 v
.add
("const int {m.const_color} = {color};")
265 color_consts_done
.add
(m
)
268 private var color_consts_done
= new HashSet[Object]
270 # colorize classe properties
271 fun do_property_coloring
do
273 var rta
= runtime_type_analysis
276 var poset
= mainmodule
.flatten_mclass_hierarchy
277 var mclasses
= new HashSet[MClass].from
(poset
)
278 var colorer
= new POSetColorer[MClass]
279 colorer
.colorize
(poset
)
281 # The dead methods, still need to provide a dead color symbol
282 var dead_methods
= new Array[MMethod]
284 # lookup properties to build layout with
285 var mmethods
= new HashMap[MClass, Set[PropertyLayoutElement]]
286 var mattributes
= new HashMap[MClass, Set[MAttribute]]
287 for mclass
in mclasses
do
288 mmethods
[mclass
] = new HashSet[PropertyLayoutElement]
289 mattributes
[mclass
] = new HashSet[MAttribute]
290 for mprop
in self.mainmodule
.properties
(mclass
) do
291 if mprop
isa MMethod then
292 if not modelbuilder
.toolcontext
.opt_colo_dead_methods
.value
and rta
!= null and not rta
.live_methods
.has
(mprop
) then
293 dead_methods
.add
(mprop
)
296 mmethods
[mclass
].add
(mprop
)
297 else if mprop
isa MAttribute then
298 mattributes
[mclass
].add
(mprop
)
303 # Collect all super calls (dead or not)
304 var all_super_calls
= new HashSet[MMethodDef]
305 for mmodule
in self.mainmodule
.in_importation
.greaters
do
306 for mclassdef
in mmodule
.mclassdefs
do
307 for mpropdef
in mclassdef
.mpropdefs
do
308 if not mpropdef
isa MMethodDef then continue
309 if mpropdef
.has_supercall
then
310 all_super_calls
.add
(mpropdef
)
316 # lookup super calls and add it to the list of mmethods to build layout with
319 super_calls
= rta
.live_super_sends
321 super_calls
= all_super_calls
324 for mmethoddef
in super_calls
do
325 var mclass
= mmethoddef
.mclassdef
.mclass
326 mmethods
[mclass
].add
(mmethoddef
)
327 for descendant
in mclass
.in_hierarchy
(self.mainmodule
).smallers
do
328 mmethods
[descendant
].add
(mmethoddef
)
333 var meth_colorer
= new POSetBucketsColorer[MClass, PropertyLayoutElement](poset
, colorer
.conflicts
)
334 method_colors
= meth_colorer
.colorize
(mmethods
)
335 method_tables
= build_method_tables
(mclasses
, super_calls
)
336 compile_color_consts
(method_colors
)
338 # attribute null color to dead methods and supercalls
339 for mproperty
in dead_methods
do
340 compile_color_const
(new_visitor
, mproperty
, -1)
342 for mpropdef
in all_super_calls
do
343 if super_calls
.has
(mpropdef
) then continue
344 compile_color_const
(new_visitor
, mpropdef
, -1)
347 # attributes coloration
348 var attr_colorer
= new POSetBucketsColorer[MClass, MAttribute](poset
, colorer
.conflicts
)
349 attr_colors
= attr_colorer
.colorize
(mattributes
)
350 attr_tables
= build_attr_tables
(mclasses
)
351 compile_color_consts
(attr_colors
)
354 fun build_method_tables
(mclasses
: Set[MClass], super_calls
: Set[MMethodDef]): Map[MClass, Array[nullable MPropDef]] do
355 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
356 for mclass
in mclasses
do
357 var table
= new Array[nullable MPropDef]
358 tables
[mclass
] = table
360 var mproperties
= self.mainmodule
.properties
(mclass
)
361 var mtype
= mclass
.intro
.bound_mtype
363 for mproperty
in mproperties
do
364 if not mproperty
isa MMethod then continue
365 if not method_colors
.has_key
(mproperty
) then continue
366 var color
= method_colors
[mproperty
]
367 if table
.length
<= color
then
368 for i
in [table
.length
.. color
[ do
372 table
[color
] = mproperty
.lookup_first_definition
(mainmodule
, mtype
)
375 for supercall
in super_calls
do
376 if not mtype
.collect_mclassdefs
(mainmodule
).has
(supercall
.mclassdef
) then continue
378 var color
= method_colors
[supercall
]
379 if table
.length
<= color
then
380 for i
in [table
.length
.. color
[ do
384 var mmethoddef
= supercall
.lookup_next_definition
(mainmodule
, mtype
)
385 table
[color
] = mmethoddef
392 fun build_attr_tables
(mclasses
: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
393 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
394 for mclass
in mclasses
do
395 var table
= new Array[nullable MPropDef]
396 tables
[mclass
] = table
398 var mproperties
= self.mainmodule
.properties
(mclass
)
399 var mtype
= mclass
.intro
.bound_mtype
401 for mproperty
in mproperties
do
402 if not mproperty
isa MAttribute then continue
403 if not attr_colors
.has_key
(mproperty
) then continue
404 var color
= attr_colors
[mproperty
]
405 if table
.length
<= color
then
406 for i
in [table
.length
.. color
[ do
410 table
[color
] = mproperty
.lookup_first_definition
(mainmodule
, mtype
)
416 # colorize live types of the program
417 private fun do_type_coloring
: POSet[MType] do
418 # Collect types to colorize
419 var live_types
= runtime_type_analysis
.live_types
420 var live_cast_types
= runtime_type_analysis
.live_cast_types
421 var mtypes
= new HashSet[MType]
422 mtypes
.add_all
(live_types
)
423 for c
in self.box_kinds
.keys
do
424 mtypes
.add
(c
.mclass_type
)
428 var poset
= poset_from_mtypes
(mtypes
, live_cast_types
)
429 var colorer
= new POSetColorer[MType]
430 colorer
.colorize
(poset
)
431 type_ids
= colorer
.ids
432 type_colors
= colorer
.colors
433 type_tables
= build_type_tables
(poset
)
435 # VT and FT are stored with other unresolved types in the big resolution_tables
436 self.compile_resolution_tables
(mtypes
)
441 private fun poset_from_mtypes
(mtypes
, cast_types
: Set[MType]): POSet[MType] do
442 var poset
= new POSet[MType]
445 for o
in cast_types
do
446 if e
== o
then continue
448 if e
.is_subtype
(mainmodule
, null, o
) then
457 fun build_type_tables
(mtypes
: POSet[MType]): Map[MType, Array[nullable MType]] do
458 var tables
= new HashMap[MType, Array[nullable MType]]
459 for mtype
in mtypes
do
460 var table
= new Array[nullable MType]
461 for sup
in mtypes
[mtype
].greaters
do
462 var color
= type_colors
[sup
]
463 if table
.length
<= color
then
464 for i
in [table
.length
.. color
[ do
470 tables
[mtype
] = table
475 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
476 # resolution_tables is used to perform a type resolution at runtime in O(1)
478 # During the visit of the body of classes, live_unresolved_types are collected
480 # Collect all live_unresolved_types (visited in the body of classes)
482 # Determinate fo each livetype what are its possible requested anchored types
483 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
484 for mtype
in self.runtime_type_analysis
.live_types
do
485 var set
= new HashSet[MType]
486 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
487 if self.live_unresolved_types
.has_key
(cd
) then
488 set
.add_all
(self.live_unresolved_types
[cd
])
491 mtype2unresolved
[mtype
] = set
494 # Compute the table layout with the prefered method
495 var colorer
= new BucketsColorer[MType, MType]
496 opentype_colors
= colorer
.colorize
(mtype2unresolved
)
497 resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
499 # Compile a C constant for each collected unresolved type.
500 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
501 var all_unresolved
= new HashSet[MType]
502 for t
in self.live_unresolved_types
.values
do
503 all_unresolved
.add_all
(t
)
505 var all_unresolved_types_colors
= new HashMap[MType, Int]
506 for t
in all_unresolved
do
507 if opentype_colors
.has_key
(t
) then
508 all_unresolved_types_colors
[t
] = opentype_colors
[t
]
510 all_unresolved_types_colors
[t
] = -1
513 self.compile_color_consts
(all_unresolved_types_colors
)
516 #for k, v in unresolved_types_tables.as(not null) do
517 # print "{k}: {v.join(", ")}"
522 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
523 var tables
= new HashMap[MClassType, Array[nullable MType]]
524 for mclasstype
, mtypes
in elements
do
525 var table
= new Array[nullable MType]
526 for mtype
in mtypes
do
527 var color
= opentype_colors
[mtype
]
528 if table
.length
<= color
then
529 for i
in [table
.length
.. color
[ do
535 tables
[mclasstype
] = table
540 # Separately compile all the method definitions of the module
541 fun compile_module_to_c
(mmodule
: MModule)
543 var old_module
= self.mainmodule
544 self.mainmodule
= mmodule
545 for cd
in mmodule
.mclassdefs
do
546 for pd
in cd
.mpropdefs
do
547 if not pd
isa MMethodDef then continue
548 var rta
= runtime_type_analysis
549 if modelbuilder
.toolcontext
.opt_skip_dead_methods
.value
and rta
!= null and not rta
.live_methoddefs
.has
(pd
) then continue
550 #print "compile {pd} @ {cd} @ {mmodule}"
551 var r
= pd
.separate_runtime_function
553 var r2
= pd
.virtual_runtime_function
554 r2
.compile_to_c
(self)
557 self.mainmodule
= old_module
560 # Globaly compile the type structure of a live type
561 fun compile_type_to_c
(mtype
: MType)
563 assert not mtype
.need_anchor
564 var is_live
= mtype
isa MClassType and runtime_type_analysis
.live_types
.has
(mtype
)
565 var is_cast_live
= runtime_type_analysis
.live_cast_types
.has
(mtype
)
566 var c_name
= mtype
.c_name
567 var v
= new SeparateCompilerVisitor(self)
568 v
.add_decl
("/* runtime type {mtype} */")
570 # extern const struct type_X
571 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
573 # const struct type_X
574 v
.add_decl
("const struct type type_{c_name} = \{")
576 # type id (for cast target)
578 v
.add_decl
("{type_ids[mtype]},")
580 v
.add_decl
("-1, /*CAST DEAD*/")
584 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
586 # type color (for cast target)
588 v
.add_decl
("{type_colors[mtype]},")
590 v
.add_decl
("-1, /*CAST DEAD*/")
594 if mtype
isa MNullableType then
600 # resolution table (for receiver)
602 var mclass_type
= mtype
.as_notnullable
603 assert mclass_type
isa MClassType
604 if resolution_tables
[mclass_type
].is_empty
then
605 v
.add_decl
("NULL, /*NO RESOLUTIONS*/")
607 compile_type_resolution_table
(mtype
)
608 v
.require_declaration
("resolution_table_{c_name}")
609 v
.add_decl
("&resolution_table_{c_name},")
612 v
.add_decl
("NULL, /*DEAD*/")
615 # cast table (for receiver)
617 v
.add_decl
("{self.type_tables[mtype].length},")
619 for stype
in self.type_tables
[mtype
] do
620 if stype
== null then
621 v
.add_decl
("-1, /* empty */")
623 v
.add_decl
("{type_ids[stype]}, /* {stype} */")
628 v
.add_decl
("0, \{\}, /*DEAD TYPE*/")
633 fun compile_type_resolution_table
(mtype
: MType) do
635 var mclass_type
= mtype
.as_notnullable
.as(MClassType)
637 # extern const struct resolution_table_X resolution_table_X
638 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
640 # const struct fts_table_X fts_table_X
642 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
643 v
.add_decl
("0, /* dummy */")
645 for t
in self.resolution_tables
[mclass_type
] do
647 v
.add_decl
("NULL, /* empty */")
649 # The table stores the result of the type resolution
650 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
651 # the value stored is tv.
652 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
653 # FIXME: What typeids means here? How can a tv not be live?
654 if type_ids
.has_key
(tv
) then
655 v
.require_declaration
("type_{tv.c_name}")
656 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
658 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
666 # Globally compile the table of the class mclass
667 # In a link-time optimisation compiler, tables are globally computed
668 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
669 fun compile_class_to_c
(mclass
: MClass)
671 var mtype
= mclass
.intro
.bound_mtype
672 var c_name
= mclass
.c_name
674 var vft
= self.method_tables
[mclass
]
675 var attrs
= self.attr_tables
[mclass
]
678 var rta
= runtime_type_analysis
679 var is_dead
= rta
!= null and not rta
.live_classes
.has
(mclass
) and mtype
.ctype
== "val*" and mclass
.name
!= "NativeArray" and mclass
.name
!= "Pointer"
681 v
.add_decl
("/* runtime class {c_name} */")
685 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
686 v
.add_decl
("const struct class class_{c_name} = \{")
687 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
689 for i
in [0 .. vft
.length
[ do
690 var mpropdef
= vft
[i
]
691 if mpropdef
== null then
692 v
.add_decl
("NULL, /* empty */")
694 assert mpropdef
isa MMethodDef
695 if rta
!= null and not rta
.live_methoddefs
.has
(mpropdef
) then
696 v
.add_decl
("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
699 var rf
= mpropdef
.virtual_runtime_function
700 v
.require_declaration
(rf
.c_name
)
701 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
708 if mtype
.ctype
!= "val*" or mtype
.mclass
.name
== "Pointer" then
709 # Is a primitive type or the Pointer class, not any other extern class
711 #Build instance struct
712 self.header
.add_decl
("struct instance_{c_name} \{")
713 self.header
.add_decl
("const struct type *type;")
714 self.header
.add_decl
("const struct class *class;")
715 self.header
.add_decl
("{mtype.ctype_extern} value;")
716 self.header
.add_decl
("\};")
718 if not rta
.live_types
.has
(mtype
) and mtype
.mclass
.name
!= "Pointer" then return
721 self.provide_declaration
("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype_extern});")
722 v
.add_decl
("/* allocate {mtype} */")
723 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype_extern} value) \{")
724 v
.add
("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
725 v
.compiler
.undead_types
.add
(mtype
)
726 v
.require_declaration
("type_{c_name}")
727 v
.add
("res->type = &type_{c_name};")
728 v
.require_declaration
("class_{c_name}")
729 v
.add
("res->class = &class_{c_name};")
730 v
.add
("res->value = value;")
731 v
.add
("return (val*)res;")
734 if mtype
.mclass
.name
!= "Pointer" then return
737 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
738 v
.add_decl
("/* allocate {mtype} */")
739 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
741 v
.add_abort
("{mclass} is DEAD")
743 var res
= v
.new_named_var
(mtype
, "self")
745 v
.add
("{res} = nit_alloc(sizeof(struct instance_{mtype.c_name}));")
746 v
.add
("{res}->type = type;")
747 hardening_live_type
(v
, "type")
748 v
.require_declaration
("class_{c_name}")
749 v
.add
("{res}->class = &class_{c_name};")
750 v
.add
("((struct instance_{mtype.c_name}*){res})->value = NULL;")
751 v
.add
("return {res};")
755 else if mclass
.name
== "NativeArray" then
756 #Build instance struct
757 self.header
.add_decl
("struct instance_{c_name} \{")
758 self.header
.add_decl
("const struct type *type;")
759 self.header
.add_decl
("const struct class *class;")
760 # NativeArrays are just a instance header followed by a length and an array of values
761 self.header
.add_decl
("int length;")
762 self.header
.add_decl
("val* values[0];")
763 self.header
.add_decl
("\};")
766 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
767 v
.add_decl
("/* allocate {mtype} */")
768 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
769 var res
= v
.get_name
("self")
770 v
.add_decl
("struct instance_{c_name} *{res};")
771 var mtype_elt
= mtype
.arguments
.first
772 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
773 v
.add
("{res}->type = type;")
774 hardening_live_type
(v
, "type")
775 v
.require_declaration
("class_{c_name}")
776 v
.add
("{res}->class = &class_{c_name};")
777 v
.add
("{res}->length = length;")
778 v
.add
("return (val*){res};")
781 else if mtype
.mclass
.kind
== extern_kind
and mtype
.mclass
.name
!= "NativeString" then
782 # Is an extern class (other than Pointer and NativeString)
783 # Pointer is caught in a previous `if`, and NativeString is internal
785 var pointer_type
= mainmodule
.pointer_type
787 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
788 v
.add_decl
("/* allocate {mtype} */")
789 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
791 v
.add_abort
("{mclass} is DEAD")
793 var res
= v
.new_named_var
(mtype
, "self")
795 v
.add
("{res} = nit_alloc(sizeof(struct instance_{pointer_type.c_name}));")
796 v
.add
("{res}->type = type;")
797 hardening_live_type
(v
, "type")
798 v
.require_declaration
("class_{c_name}")
799 v
.add
("{res}->class = &class_{c_name};")
800 v
.add
("((struct instance_{pointer_type.c_name}*){res})->value = NULL;")
801 v
.add
("return {res};")
808 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
809 v
.add_decl
("/* allocate {mtype} */")
810 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
812 v
.add_abort
("{mclass} is DEAD")
814 var res
= v
.new_named_var
(mtype
, "self")
816 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
817 v
.add
("{res}->type = type;")
818 hardening_live_type
(v
, "type")
819 v
.require_declaration
("class_{c_name}")
820 v
.add
("{res}->class = &class_{c_name};")
821 self.generate_init_attr
(v
, res
, mtype
)
823 v
.add
("return {res};")
828 # Add a dynamic test to ensure that the type referenced by `t` is a live type
829 fun hardening_live_type
(v
: VISITOR, t
: String)
831 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
832 v
.add
("if({t} == NULL) \{")
833 v
.add_abort
("type null")
835 v
.add
("if({t}->table_size == 0) \{")
836 v
.add
("PRINT_ERROR(\"Insantiation of a dead
type: %s\\n\
", {t}->name);")
837 v
.add_abort
("type dead")
841 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
845 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
846 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
847 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
848 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
850 redef fun display_stats
853 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
856 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
859 var tc
= self.modelbuilder
.toolcontext
860 tc
.info
("# implementation of method invocation",2)
861 var nb_invok_total
= modelbuilder
.nb_invok_by_tables
+ modelbuilder
.nb_invok_by_direct
+ modelbuilder
.nb_invok_by_inline
862 tc
.info
("total number of invocations: {nb_invok_total}",2)
863 tc
.info
("invocations by VFT send: {modelbuilder.nb_invok_by_tables} ({div(modelbuilder.nb_invok_by_tables,nb_invok_total)}%)",2)
864 tc
.info
("invocations by direct call: {modelbuilder.nb_invok_by_direct} ({div(modelbuilder.nb_invok_by_direct,nb_invok_total)}%)",2)
865 tc
.info
("invocations by inlining: {modelbuilder.nb_invok_by_inline} ({div(modelbuilder.nb_invok_by_inline,nb_invok_total)}%)",2)
870 print
"# size of subtyping tables"
871 print
"\ttotal \tholes"
874 for t
, table
in type_tables
do
875 total
+= table
.length
876 for e
in table
do if e
== null then holes
+= 1
878 print
"\t{total}\t{holes}"
880 print
"# size of resolution tables"
881 print
"\ttotal \tholes"
884 for t
, table
in resolution_tables
do
885 total
+= table
.length
886 for e
in table
do if e
== null then holes
+= 1
888 print
"\t{total}\t{holes}"
890 print
"# size of methods tables"
891 print
"\ttotal \tholes"
894 for t
, table
in method_tables
do
895 total
+= table
.length
896 for e
in table
do if e
== null then holes
+= 1
898 print
"\t{total}\t{holes}"
900 print
"# size of attributes tables"
901 print
"\ttotal \tholes"
904 for t
, table
in attr_tables
do
905 total
+= table
.length
906 for e
in table
do if e
== null then holes
+= 1
908 print
"\t{total}\t{holes}"
911 protected var isset_checks_count
= 0
912 protected var attr_read_count
= 0
914 fun display_isset_checks
do
915 print
"# total number of compiled attribute reads"
916 print
"\t{attr_read_count}"
917 print
"# total number of compiled isset-checks"
918 print
"\t{isset_checks_count}"
921 redef fun compile_nitni_structs
923 self.header
.add_decl
"""
924 struct nitni_instance \{
925 struct nitni_instance *next,
926 *prev; /* adjacent global references in global list */
927 int count; /* number of time this global reference has been marked */
928 struct instance *value;
934 redef fun finalize_ffi_for_module
(mmodule
)
936 var old_module
= self.mainmodule
937 self.mainmodule
= mmodule
939 self.mainmodule
= old_module
943 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
944 class SeparateCompilerVisitor
945 super AbstractCompilerVisitor
947 redef type COMPILER: SeparateCompiler
949 redef fun adapt_signature
(m
, args
)
951 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
952 var recv
= args
.first
953 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
954 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
956 for i
in [0..msignature
.arity
[ do
957 var t
= msignature
.mparameters
[i
].mtype
958 if i
== msignature
.vararg_rank
then
961 args
[i
+1] = self.autobox
(args
[i
+1], t
)
965 redef fun unbox_signature_extern
(m
, args
)
967 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
968 if not m
.mproperty
.is_init
and m
.is_extern
then
969 args
.first
= self.unbox_extern
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
971 for i
in [0..msignature
.arity
[ do
972 var t
= msignature
.mparameters
[i
].mtype
973 if i
== msignature
.vararg_rank
then
976 if m
.is_extern
then args
[i
+1] = self.unbox_extern
(args
[i
+1], t
)
980 redef fun autobox
(value
, mtype
)
982 if value
.mtype
== mtype
then
984 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
986 else if value
.mtype
.ctype
== "val*" then
987 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
988 else if mtype
.ctype
== "val*" then
989 var valtype
= value
.mtype
.as(MClassType)
990 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and mtype
.mclass
.name
!= "NativeString" then
991 valtype
= compiler
.mainmodule
.pointer_type
993 var res
= self.new_var
(mtype
)
994 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
995 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
996 self.add
("PRINT_ERROR(\"Dead code executed
!\\n\
"); show_backtrace(1);")
999 self.require_declaration
("BOX_{valtype.c_name}")
1000 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
1002 else if (value
.mtype
.ctype
== "void*" and mtype
.ctype
== "void*") or
1003 (value
.mtype
.ctype
== "char*" and mtype
.ctype
== "void*") or
1004 (value
.mtype
.ctype
== "void*" and mtype
.ctype
== "char*") then
1007 # Bad things will appen!
1008 var res
= self.new_var
(mtype
)
1009 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
1010 self.add
("PRINT_ERROR(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); show_backtrace(1);")
1015 redef fun unbox_extern
(value
, mtype
)
1017 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and
1018 mtype
.mclass
.name
!= "NativeString" then
1019 var pointer_type
= compiler
.mainmodule
.pointer_type
1020 var res
= self.new_var_extern
(mtype
)
1021 self.add
"{res} = ((struct instance_{pointer_type.c_name}*){value})->value; /* unboxing {value.mtype} */"
1028 redef fun box_extern
(value
, mtype
)
1030 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and
1031 mtype
.mclass
.name
!= "NativeString" then
1032 var valtype
= compiler
.mainmodule
.pointer_type
1033 var res
= self.new_var
(mtype
)
1034 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(value
.mtype
.as(MClassType)) then
1035 self.add
("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
1036 self.add
("PRINT_ERROR(\"Dead code executed
!\\n\
"); show_backtrace(1);")
1039 self.require_declaration
("BOX_{valtype.c_name}")
1040 self.add
("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
1041 self.require_declaration
("type_{mtype.c_name}")
1042 self.add
("{res}->type = &type_{mtype.c_name};")
1043 self.require_declaration
("class_{mtype.c_name}")
1044 self.add
("{res}->class = &class_{mtype.c_name};")
1051 # Return a C expression returning the runtime type structure of the value
1052 # The point of the method is to works also with primitives types.
1053 fun type_info
(value
: RuntimeVariable): String
1055 if value
.mtype
.ctype
== "val*" then
1056 return "{value}->type"
1058 compiler
.undead_types
.add
(value
.mtype
)
1059 self.require_declaration
("type_{value.mtype.c_name}")
1060 return "(&type_{value.mtype.c_name})"
1064 redef fun compile_callsite
(callsite
, args
)
1066 var rta
= compiler
.runtime_type_analysis
1067 var mmethod
= callsite
.mproperty
1068 # TODO: Inlining of new-style constructors with initializers
1069 if compiler
.modelbuilder
.toolcontext
.opt_direct_call_monomorph
.value
and rta
!= null and callsite
.mpropdef
.initializers
.is_empty
then
1070 var tgs
= rta
.live_targets
(callsite
)
1071 if tgs
.length
== 1 then
1073 var res0
= before_send
(mmethod
, args
)
1074 var res
= call
(tgs
.first
, tgs
.first
.mclassdef
.bound_mtype
, args
)
1075 if res0
!= null then
1077 self.assign
(res0
, res
)
1080 add
("\}") # close the before_send
1086 redef fun send
(mmethod
, arguments
)
1088 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1089 # In order to shortcut the primitive, we need to find the most specific method
1090 # Howverr, because of performance (no flattening), we always work on the realmainmodule
1091 var m
= self.compiler
.mainmodule
1092 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1093 var res
= self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
1094 self.compiler
.mainmodule
= m
1098 return table_send
(mmethod
, arguments
, mmethod
.const_color
)
1101 # Handle common special cases before doing the effective method invocation
1102 # This methods handle the `==` and `!=` methods and the case of the null receiver.
1103 # Note: a { is open in the generated C, that enclose and protect the effective method invocation.
1104 # Client must not forget to close the } after them.
1106 # The value returned is the result of the common special cases.
1107 # If not null, client must compile it with the result of their own effective method invocation.
1109 # If `before_send` can shortcut the whole message sending, a dummy `if(0){`
1110 # is generated to cancel the effective method invocation that will follow
1111 # TODO: find a better approach
1112 private fun before_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1114 var res
: nullable RuntimeVariable = null
1115 var recv
= arguments
.first
1116 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
1117 var maybenull
= (recv
.mcasttype
isa MNullableType or recv
.mcasttype
isa MNullType) and consider_null
1119 self.add
("if ({recv} == NULL) \{")
1120 if mmethod
.name
== "==" or mmethod
.name
== "is_same_instance" then
1121 res
= self.new_var
(bool_type
)
1122 var arg
= arguments
[1]
1123 if arg
.mcasttype
isa MNullableType then
1124 self.add
("{res} = ({arg} == NULL);")
1125 else if arg
.mcasttype
isa MNullType then
1126 self.add
("{res} = 1; /* is null */")
1128 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
1130 else if mmethod
.name
== "!=" then
1131 res
= self.new_var
(bool_type
)
1132 var arg
= arguments
[1]
1133 if arg
.mcasttype
isa MNullableType then
1134 self.add
("{res} = ({arg} != NULL);")
1135 else if arg
.mcasttype
isa MNullType then
1136 self.add
("{res} = 0; /* is null */")
1138 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
1141 self.add_abort
("Receiver is null")
1143 self.add
("\} else \{")
1147 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=" or mmethod
.name
== "is_same_instance") then
1148 # Recv is not null, thus if arg is, it is easy to conclude (and respect the invariants)
1149 var arg
= arguments
[1]
1150 if arg
.mcasttype
isa MNullType then
1151 if res
== null then res
= self.new_var
(bool_type
)
1152 if mmethod
.name
== "!=" then
1153 self.add
("{res} = 1; /* arg is null and recv is not */")
1154 else # `==` and `is_same_instance`
1155 self.add
("{res} = 0; /* arg is null but recv is not */")
1157 self.add
("\}") # closes the null case
1158 self.add
("if (0) \{") # what follow is useless, CC will drop it
1164 private fun table_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable], const_color
: String): nullable RuntimeVariable
1166 compiler
.modelbuilder
.nb_invok_by_tables
+= 1
1167 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_tables++;")
1169 assert arguments
.length
== mmethod
.intro
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethod}. {arguments.length} arguments given.")
1170 var recv
= arguments
.first
1172 var res0
= before_send
(mmethod
, arguments
)
1174 var res
: nullable RuntimeVariable
1175 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
1176 var ret
= msignature
.return_mtype
1180 res
= self.new_var
(ret
)
1183 var s
= new FlatBuffer
1184 var ss
= new FlatBuffer
1188 for i
in [0..msignature
.arity
[ do
1189 var a
= arguments
[i
+1]
1190 var t
= msignature
.mparameters
[i
].mtype
1191 if i
== msignature
.vararg_rank
then
1192 t
= arguments
[i
+1].mcasttype
1194 s
.append
(", {t.ctype}")
1195 a
= self.autobox
(a
, t
)
1201 if ret
== null then r
= "void" else r
= ret
.ctype
1202 self.require_declaration
(const_color
)
1203 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1206 self.add
("{res} = {call};")
1211 if res0
!= null then
1217 self.add
("\}") # closes the null case
1222 redef fun call
(mmethoddef
, recvtype
, arguments
)
1224 assert arguments
.length
== mmethoddef
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
1226 var res
: nullable RuntimeVariable
1227 var ret
= mmethoddef
.msignature
.return_mtype
1231 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1232 res
= self.new_var
(ret
)
1235 if (mmethoddef
.is_intern
and not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
) or
1236 (compiler
.modelbuilder
.toolcontext
.opt_inline_some_methods
.value
and mmethoddef
.can_inline
(self)) then
1237 compiler
.modelbuilder
.nb_invok_by_inline
+= 1
1238 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_inline++;")
1239 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1240 frame
.returnlabel
= self.get_name
("RET_LABEL")
1241 frame
.returnvar
= res
1242 var old_frame
= self.frame
1244 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) on {arguments.first.inspect} */")
1245 mmethoddef
.compile_inside_to_c
(self, arguments
)
1246 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1248 self.frame
= old_frame
1251 compiler
.modelbuilder
.nb_invok_by_direct
+= 1
1252 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_direct++;")
1255 self.adapt_signature
(mmethoddef
, arguments
)
1257 self.require_declaration
(mmethoddef
.c_name
)
1259 self.add
("{mmethoddef.c_name}({arguments.join(", ")}); /* Direct call {mmethoddef} on {arguments.first.inspect}*/")
1262 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1268 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1270 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1271 # In order to shortcut the primitive, we need to find the most specific method
1272 # However, because of performance (no flattening), we always work on the realmainmodule
1273 var main
= self.compiler
.mainmodule
1274 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1275 var res
= self.monomorphic_super_send
(m
, recvtype
, arguments
)
1276 self.compiler
.mainmodule
= main
1279 return table_send
(m
.mproperty
, arguments
, m
.const_color
)
1282 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1284 # A vararg must be stored into an new array
1285 # The trick is that the dymaic type of the array may depends on the receiver
1286 # of the method (ie recv) if the static type is unresolved
1287 # This is more complex than usual because the unresolved type must not be resolved
1288 # with the current receiver (ie self).
1289 # Therefore to isolate the resolution from self, a local Frame is created.
1290 # One can see this implementation as an inlined method of the receiver whose only
1291 # job is to allocate the array
1292 var old_frame
= self.frame
1293 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1295 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1296 var res
= self.array_instance
(varargs
, elttype
)
1297 self.frame
= old_frame
1301 redef fun isset_attribute
(a
, recv
)
1303 self.check_recv_notnull
(recv
)
1304 var res
= self.new_var
(bool_type
)
1306 # What is the declared type of the attribute?
1307 var mtype
= a
.intro
.static_mtype
.as(not null)
1308 var intromclassdef
= a
.intro
.mclassdef
1309 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1311 if mtype
isa MNullableType then
1312 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1316 self.require_declaration
(a
.const_color
)
1317 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1318 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1321 if mtype
.ctype
== "val*" then
1322 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1324 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1330 redef fun read_attribute
(a
, recv
)
1332 self.check_recv_notnull
(recv
)
1334 # What is the declared type of the attribute?
1335 var ret
= a
.intro
.static_mtype
.as(not null)
1336 var intromclassdef
= a
.intro
.mclassdef
1337 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1339 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1340 self.compiler
.attr_read_count
+= 1
1341 self.add
("count_attr_reads++;")
1344 self.require_declaration
(a
.const_color
)
1345 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1346 # Get the attribute or a box (ie. always a val*)
1347 var cret
= self.object_type
.as_nullable
1348 var res
= self.new_var
(cret
)
1351 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1353 # Check for Uninitialized attribute
1354 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1355 self.add
("if (unlikely({res} == NULL)) \{")
1356 self.add_abort
("Uninitialized attribute {a.name}")
1359 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1360 self.compiler
.isset_checks_count
+= 1
1361 self.add
("count_isset_checks++;")
1365 # Return the attribute or its unboxed version
1366 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1367 return self.autobox
(res
, ret
)
1369 var res
= self.new_var
(ret
)
1370 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1372 # Check for Uninitialized attribute
1373 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1374 self.add
("if (unlikely({res} == NULL)) \{")
1375 self.add_abort
("Uninitialized attribute {a.name}")
1377 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1378 self.compiler
.isset_checks_count
+= 1
1379 self.add
("count_isset_checks++;")
1387 redef fun write_attribute
(a
, recv
, value
)
1389 self.check_recv_notnull
(recv
)
1391 # What is the declared type of the attribute?
1392 var mtype
= a
.intro
.static_mtype
.as(not null)
1393 var intromclassdef
= a
.intro
.mclassdef
1394 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1396 # Adapt the value to the declared type
1397 value
= self.autobox
(value
, mtype
)
1399 self.require_declaration
(a
.const_color
)
1400 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1401 var attr
= "{recv}->attrs[{a.const_color}]"
1402 if mtype
.ctype
!= "val*" then
1403 assert mtype
isa MClassType
1404 # The attribute is primitive, thus we store it in a box
1405 # The trick is to create the box the first time then resuse the box
1406 self.add
("if ({attr} != NULL) \{")
1407 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1408 self.add
("\} else \{")
1409 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1410 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1413 # The attribute is not primitive, thus store it direclty
1414 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1417 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1421 # Check that mtype is a live open type
1422 fun hardening_live_open_type
(mtype
: MType)
1424 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1425 self.require_declaration
(mtype
.const_color
)
1426 var col
= mtype
.const_color
1427 self.add
("if({col} == -1) \{")
1428 self.add
("PRINT_ERROR(\"Resolution of a dead open
type: %s\\n\
", \"{mtype.to_s.escape_to_c}\
");")
1429 self.add_abort
("open type dead")
1433 # Check that mtype it a pointer to a live cast type
1434 fun hardening_cast_type
(t
: String)
1436 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1437 add
("if({t} == NULL) \{")
1438 add_abort
("cast type null")
1440 add
("if({t}->id == -1 || {t}->color == -1) \{")
1441 add
("PRINT_ERROR(\"Try to cast on a dead cast
type: %s\\n\
", {t}->name);")
1442 add_abort
("cast type dead")
1446 redef fun init_instance
(mtype
)
1448 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1449 var compiler
= self.compiler
1450 if mtype
isa MGenericType and mtype
.need_anchor
then
1451 hardening_live_open_type
(mtype
)
1452 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1453 var recv
= self.frame
.arguments
.first
1454 var recv_type_info
= self.type_info
(recv
)
1455 self.require_declaration
(mtype
.const_color
)
1456 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1458 compiler
.undead_types
.add
(mtype
)
1459 self.require_declaration
("type_{mtype.c_name}")
1460 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1463 redef fun type_test
(value
, mtype
, tag
)
1465 self.add
("/* {value.inspect} isa {mtype} */")
1466 var compiler
= self.compiler
1468 var recv
= self.frame
.arguments
.first
1469 var recv_type_info
= self.type_info
(recv
)
1471 var res
= self.new_var
(bool_type
)
1473 var cltype
= self.get_name
("cltype")
1474 self.add_decl
("int {cltype};")
1475 var idtype
= self.get_name
("idtype")
1476 self.add_decl
("int {idtype};")
1478 var maybe_null
= self.maybe_null
(value
)
1479 var accept_null
= "0"
1481 if ntype
isa MNullableType then
1486 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1487 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1488 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1489 self.compiler
.count_type_test_skipped
[tag
] += 1
1490 self.add
("count_type_test_skipped_{tag}++;")
1495 if ntype
.need_anchor
then
1496 var type_struct
= self.get_name
("type_struct")
1497 self.add_decl
("const struct type* {type_struct};")
1499 # Either with resolution_table with a direct resolution
1500 hardening_live_open_type
(mtype
)
1501 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1502 self.require_declaration
(mtype
.const_color
)
1503 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.const_color}];")
1504 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1505 self.compiler
.count_type_test_unresolved
[tag
] += 1
1506 self.add
("count_type_test_unresolved_{tag}++;")
1508 hardening_cast_type
(type_struct
)
1509 self.add
("{cltype} = {type_struct}->color;")
1510 self.add
("{idtype} = {type_struct}->id;")
1511 if maybe_null
and accept_null
== "0" then
1512 var is_nullable
= self.get_name
("is_nullable")
1513 self.add_decl
("short int {is_nullable};")
1514 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1515 accept_null
= is_nullable
.to_s
1517 else if ntype
isa MClassType then
1518 compiler
.undead_types
.add
(mtype
)
1519 self.require_declaration
("type_{mtype.c_name}")
1520 hardening_cast_type
("(&type_{mtype.c_name})")
1521 self.add
("{cltype} = type_{mtype.c_name}.color;")
1522 self.add
("{idtype} = type_{mtype.c_name}.id;")
1523 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1524 self.compiler
.count_type_test_resolved
[tag
] += 1
1525 self.add
("count_type_test_resolved_{tag}++;")
1528 self.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); show_backtrace(1);")
1531 # check color is in table
1533 self.add
("if({value} == NULL) \{")
1534 self.add
("{res} = {accept_null};")
1535 self.add
("\} else \{")
1537 var value_type_info
= self.type_info
(value
)
1538 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1539 self.add
("{res} = 0;")
1540 self.add
("\} else \{")
1541 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1550 redef fun is_same_type_test
(value1
, value2
)
1552 var res
= self.new_var
(bool_type
)
1553 # Swap values to be symetric
1554 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1559 if value1
.mtype
.ctype
!= "val*" then
1560 if value2
.mtype
== value1
.mtype
then
1561 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1562 else if value2
.mtype
.ctype
!= "val*" then
1563 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1565 var mtype1
= value1
.mtype
.as(MClassType)
1566 self.require_declaration
("class_{mtype1.c_name}")
1567 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1570 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1575 redef fun class_name_string
(value
)
1577 var res
= self.get_name
("var_class_name")
1578 self.add_decl
("const char* {res};")
1579 if value
.mtype
.ctype
== "val*" then
1580 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1581 else if value
.mtype
isa MClassType and value
.mtype
.as(MClassType).mclass
.kind
== extern_kind
and
1582 value
.mtype
.as(MClassType).name
!= "NativeString" then
1583 self.add
"{res} = \"{value.mtype.as(MClassType).mclass}\
";"
1585 self.require_declaration
("type_{value.mtype.c_name}")
1586 self.add
"{res} = type_{value.mtype.c_name}.name;"
1591 redef fun equal_test
(value1
, value2
)
1593 var res
= self.new_var
(bool_type
)
1594 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1599 if value1
.mtype
.ctype
!= "val*" then
1600 if value2
.mtype
== value1
.mtype
then
1601 self.add
("{res} = {value1} == {value2};")
1602 else if value2
.mtype
.ctype
!= "val*" then
1603 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1605 var mtype1
= value1
.mtype
.as(MClassType)
1606 self.require_declaration
("class_{mtype1.c_name}")
1607 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1608 self.add
("if ({res}) \{")
1609 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1614 var maybe_null
= true
1615 var test
= new Array[String]
1616 var t1
= value1
.mcasttype
1617 if t1
isa MNullableType then
1618 test
.add
("{value1} != NULL")
1623 var t2
= value2
.mcasttype
1624 if t2
isa MNullableType then
1625 test
.add
("{value2} != NULL")
1631 var incompatible
= false
1633 if t1
.ctype
!= "val*" then
1636 # No need to compare class
1637 else if t2
.ctype
!= "val*" then
1639 else if can_be_primitive
(value2
) then
1640 test
.add
("{value1}->class == {value2}->class")
1644 else if t2
.ctype
!= "val*" then
1646 if can_be_primitive
(value1
) then
1647 test
.add
("{value1}->class == {value2}->class")
1655 if incompatible
then
1657 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1660 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1664 if primitive
!= null then
1665 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1666 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1667 test
.add
("{value1}->class == {value2}->class")
1668 var s
= new Array[String]
1669 for t
, v
in self.compiler
.box_kinds
do
1670 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1672 test
.add
("({s.join(" || ")})")
1674 self.add
("{res} = {value1} == {value2};")
1677 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1681 fun can_be_primitive
(value
: RuntimeVariable): Bool
1683 var t
= value
.mcasttype
.as_notnullable
1684 if not t
isa MClassType then return false
1685 var k
= t
.mclass
.kind
1686 return k
== interface_kind
or t
.ctype
!= "val*"
1689 fun maybe_null
(value
: RuntimeVariable): Bool
1691 var t
= value
.mcasttype
1692 return t
isa MNullableType or t
isa MNullType
1695 redef fun array_instance
(array
, elttype
)
1697 var nclass
= self.get_class
("NativeArray")
1698 var arrayclass
= self.get_class
("Array")
1699 var arraytype
= arrayclass
.get_mtype
([elttype
])
1700 var res
= self.init_instance
(arraytype
)
1701 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1702 var length
= self.int_instance
(array
.length
)
1703 var nat
= native_array_instance
(elttype
, length
)
1704 for i
in [0..array
.length
[ do
1705 var r
= self.autobox
(array
[i
], self.object_type
)
1706 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1708 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1713 redef fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1715 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1716 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1717 assert mtype
isa MGenericType
1718 var compiler
= self.compiler
1719 if mtype
.need_anchor
then
1720 hardening_live_open_type
(mtype
)
1721 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1722 var recv
= self.frame
.arguments
.first
1723 var recv_type_info
= self.type_info
(recv
)
1724 self.require_declaration
(mtype
.const_color
)
1725 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1727 compiler
.undead_types
.add
(mtype
)
1728 self.require_declaration
("type_{mtype.c_name}")
1729 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1732 redef fun native_array_def
(pname
, ret_type
, arguments
)
1734 var elttype
= arguments
.first
.mtype
1735 var nclass
= self.get_class
("NativeArray")
1736 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1737 if pname
== "[]" then
1738 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1740 else if pname
== "[]=" then
1741 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1743 else if pname
== "length" then
1744 self.ret
(self.new_expr
("((struct instance_{nclass.c_name}*){arguments[0]})->length", ret_type
.as(not null)))
1746 else if pname
== "copy_to" then
1747 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1748 self.add
("memmove({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1753 redef fun calloc_array
(ret_type
, arguments
)
1755 var mclass
= self.get_class
("ArrayCapable")
1756 var ft
= mclass
.mparameters
.first
1757 var res
= self.native_array_instance
(ft
, arguments
[1])
1761 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1762 assert mtype
.need_anchor
1763 var compiler
= self.compiler
1764 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1765 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1767 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1771 redef class MMethodDef
1772 fun separate_runtime_function
: AbstractRuntimeFunction
1774 var res
= self.separate_runtime_function_cache
1776 res
= new SeparateRuntimeFunction(self)
1777 self.separate_runtime_function_cache
= res
1781 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1783 fun virtual_runtime_function
: AbstractRuntimeFunction
1785 var res
= self.virtual_runtime_function_cache
1787 res
= new VirtualRuntimeFunction(self)
1788 self.virtual_runtime_function_cache
= res
1792 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1795 # The C function associated to a methoddef separately compiled
1796 class SeparateRuntimeFunction
1797 super AbstractRuntimeFunction
1799 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1801 redef fun to_s
do return self.mmethoddef
.to_s
1803 redef fun compile_to_c
(compiler
)
1805 var mmethoddef
= self.mmethoddef
1807 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1808 var v
= compiler
.new_visitor
1809 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1810 var arguments
= new Array[RuntimeVariable]
1811 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1814 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1816 var sig
= new FlatBuffer
1817 var comment
= new FlatBuffer
1818 var ret
= msignature
.return_mtype
1820 sig
.append
("{ret.ctype} ")
1824 sig
.append
(self.c_name
)
1825 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1826 comment
.append
("({selfvar}: {selfvar.mtype}")
1827 arguments
.add
(selfvar
)
1828 for i
in [0..msignature
.arity
[ do
1829 var mtype
= msignature
.mparameters
[i
].mtype
1830 if i
== msignature
.vararg_rank
then
1831 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1833 comment
.append
(", {mtype}")
1834 sig
.append
(", {mtype.ctype} p{i}")
1835 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1836 arguments
.add
(argvar
)
1841 comment
.append
(": {ret}")
1843 compiler
.provide_declaration
(self.c_name
, "{sig};")
1845 v
.add_decl
("/* method {self} for {comment} */")
1846 v
.add_decl
("{sig} \{")
1848 frame
.returnvar
= v
.new_var
(ret
)
1850 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1852 if recv
!= arguments
.first
.mtype
then
1853 #print "{self} {recv} {arguments.first}"
1855 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1857 v
.add
("{frame.returnlabel.as(not null)}:;")
1859 v
.add
("return {frame.returnvar.as(not null)};")
1862 if not self.c_name
.has_substring
("VIRTUAL", 0) then compiler
.names
[self.c_name
] = "{mmethoddef.mclassdef.mmodule.name}::{mmethoddef.mclassdef.mclass.name}::{mmethoddef.mproperty.name} ({mmethoddef.location.file.filename}:{mmethoddef.location.line_start})"
1866 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1867 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1868 class VirtualRuntimeFunction
1869 super AbstractRuntimeFunction
1871 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1873 redef fun to_s
do return self.mmethoddef
.to_s
1875 redef fun compile_to_c
(compiler
)
1877 var mmethoddef
= self.mmethoddef
1879 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1880 var v
= compiler
.new_visitor
1881 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1882 var arguments
= new Array[RuntimeVariable]
1883 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1886 var sig
= new FlatBuffer
1887 var comment
= new FlatBuffer
1889 # Because the function is virtual, the signature must match the one of the original class
1890 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1891 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1892 var ret
= msignature
.return_mtype
1894 sig
.append
("{ret.ctype} ")
1898 sig
.append
(self.c_name
)
1899 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1900 comment
.append
("({selfvar}: {selfvar.mtype}")
1901 arguments
.add
(selfvar
)
1902 for i
in [0..msignature
.arity
[ do
1903 var mtype
= msignature
.mparameters
[i
].mtype
1904 if i
== msignature
.vararg_rank
then
1905 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1907 comment
.append
(", {mtype}")
1908 sig
.append
(", {mtype.ctype} p{i}")
1909 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1910 arguments
.add
(argvar
)
1915 comment
.append
(": {ret}")
1917 compiler
.provide_declaration
(self.c_name
, "{sig};")
1919 v
.add_decl
("/* method {self} for {comment} */")
1920 v
.add_decl
("{sig} \{")
1922 frame
.returnvar
= v
.new_var
(ret
)
1924 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1926 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1928 assert subret
!= null
1929 v
.assign
(frame
.returnvar
.as(not null), subret
)
1932 v
.add
("{frame.returnlabel.as(not null)}:;")
1934 v
.add
("return {frame.returnvar.as(not null)};")
1937 if not self.c_name
.has_substring
("VIRTUAL", 0) then compiler
.names
[self.c_name
] = "{mmethoddef.mclassdef.mmodule.name}::{mmethoddef.mclassdef.mclass.name}::{mmethoddef.mproperty.name} ({mmethoddef.location.file.filename}--{mmethoddef.location.line_start})"
1941 redef fun call
(v
, arguments
) do abort
1945 var const_color
: String is lazy
do return "COLOR_{c_name}"
1948 interface PropertyLayoutElement end
1950 redef class MProperty
1951 super PropertyLayoutElement
1954 redef class MPropDef
1955 super PropertyLayoutElement
1958 redef class AMethPropdef
1959 # The semi-global compilation does not support inlining calls to extern news
1960 redef fun can_inline
1963 if m
!= null and m
.mproperty
.is_init
and m
.is_extern
then return false