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
.compile_header
95 # compile class structures
96 self.toolcontext
.info
("Property coloring", 2)
97 compiler
.new_file
("{mainmodule.name}.classes")
98 compiler
.do_property_coloring
99 for m
in mainmodule
.in_importation
.greaters
do
100 for mclass
in m
.intro_mclasses
do
101 #if mclass.kind == abstract_kind or mclass.kind == interface_kind then continue
102 compiler
.compile_class_to_c
(mclass
)
106 # The main function of the C
107 compiler
.new_file
("{mainmodule.name}.main")
108 compiler
.compile_nitni_global_ref_functions
109 compiler
.compile_main_function
110 compiler
.compile_finalizer_function
113 for m
in mainmodule
.in_importation
.greaters
do
114 self.toolcontext
.info
("Generate C for module {m}", 2)
115 compiler
.new_file
("{m.name}.sep")
116 compiler
.compile_module_to_c
(m
)
119 # compile live & cast type structures
120 self.toolcontext
.info
("Type coloring", 2)
121 compiler
.new_file
("{mainmodule.name}.types")
122 var mtypes
= compiler
.do_type_coloring
124 compiler
.compile_type_to_c
(t
)
126 # compile remaining types structures (useless but needed for the symbol resolution at link-time)
127 for t
in compiler
.undead_types
do
128 if mtypes
.has
(t
) then continue
129 compiler
.compile_type_to_c
(t
)
132 compiler
.display_stats
135 self.toolcontext
.info
("*** END GENERATING C: {time1-time0} ***", 2)
136 write_and_make
(compiler
)
139 # Count number of invocations by VFT
140 private var nb_invok_by_tables
= 0
141 # Count number of invocations by direct call
142 private var nb_invok_by_direct
= 0
143 # Count number of invocations by inlining
144 private var nb_invok_by_inline
= 0
147 # Singleton that store the knowledge about the separate compilation process
148 class SeparateCompiler
149 super AbstractCompiler
151 redef type VISITOR: SeparateCompilerVisitor
153 # The result of the RTA (used to know live types and methods)
154 var runtime_type_analysis
: nullable RapidTypeAnalysis
156 private var undead_types
: Set[MType] = new HashSet[MType]
157 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
159 private var type_ids
: Map[MType, Int] is noinit
160 private var type_colors
: Map[MType, Int] is noinit
161 private var opentype_colors
: Map[MType, Int] is noinit
162 protected var method_colors
: Map[PropertyLayoutElement, Int] is noinit
163 protected var attr_colors
: Map[MAttribute, Int] is noinit
166 var file
= new_file
("nit.common")
167 self.header
= new CodeWriter(file
)
168 self.compile_box_kinds
171 redef fun compile_header_structs
do
172 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
173 self.compile_header_attribute_structs
174 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
176 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
177 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. */")
178 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
179 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
180 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
183 fun compile_header_attribute_structs
185 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
186 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
188 self.header
.add_decl
("typedef union \{")
189 self.header
.add_decl
("void* val;")
190 for c
, v
in self.box_kinds
do
191 var t
= c
.mclass_type
193 # `Pointer` reuse the `val` field
194 if t
.mclass
.name
== "Pointer" then continue
196 self.header
.add_decl
("{t.ctype_extern} {t.ctypename};")
198 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
202 fun compile_box_kinds
204 # Collect all bas box class
205 # FIXME: this is not completely fine with a separate compilation scheme
206 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
207 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
208 if classes
== null then continue
209 assert classes
.length
== 1 else print classes
.join
(", ")
210 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
214 var box_kinds
= new HashMap[MClass, Int]
216 fun box_kind_of
(mclass
: MClass): Int
218 #var pointer_type = self.mainmodule.pointer_type
219 #if mclass.mclass_type.ctype == "val*" or mclass.mclass_type.is_subtype(self.mainmodule, mclass.mclass_type pointer_type) then
220 if mclass
.mclass_type
.ctype_extern
== "val*" then
222 else if mclass
.kind
== extern_kind
and mclass
.name
!= "NativeString" then
223 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
225 return self.box_kinds
[mclass
]
230 fun compile_color_consts
(colors
: Map[Object, Int]) do
232 for m
, c
in colors
do
233 compile_color_const
(v
, m
, c
)
237 fun compile_color_const
(v
: SeparateCompilerVisitor, m
: Object, color
: Int) do
238 if color_consts_done
.has
(m
) then return
239 if m
isa MProperty then
240 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
241 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
243 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
244 v
.add
("const int {m.const_color} = {color};")
246 else if m
isa MPropDef then
247 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
248 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
250 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
251 v
.add
("const int {m.const_color} = {color};")
253 else if m
isa MType then
254 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
255 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
257 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
258 v
.add
("const int {m.const_color} = {color};")
261 color_consts_done
.add
(m
)
264 private var color_consts_done
= new HashSet[Object]
266 # colorize classe properties
267 fun do_property_coloring
do
269 var rta
= runtime_type_analysis
272 var poset
= mainmodule
.flatten_mclass_hierarchy
273 var mclasses
= new HashSet[MClass].from
(poset
)
274 var colorer
= new POSetColorer[MClass]
275 colorer
.colorize
(poset
)
277 # The dead methods, still need to provide a dead color symbol
278 var dead_methods
= new Array[MMethod]
280 # lookup properties to build layout with
281 var mmethods
= new HashMap[MClass, Set[PropertyLayoutElement]]
282 var mattributes
= new HashMap[MClass, Set[MAttribute]]
283 for mclass
in mclasses
do
284 mmethods
[mclass
] = new HashSet[PropertyLayoutElement]
285 mattributes
[mclass
] = new HashSet[MAttribute]
286 for mprop
in self.mainmodule
.properties
(mclass
) do
287 if mprop
isa MMethod then
288 if not modelbuilder
.toolcontext
.opt_colo_dead_methods
.value
and rta
!= null and not rta
.live_methods
.has
(mprop
) then
289 dead_methods
.add
(mprop
)
292 mmethods
[mclass
].add
(mprop
)
293 else if mprop
isa MAttribute then
294 mattributes
[mclass
].add
(mprop
)
299 # Collect all super calls (dead or not)
300 var all_super_calls
= new HashSet[MMethodDef]
301 for mmodule
in self.mainmodule
.in_importation
.greaters
do
302 for mclassdef
in mmodule
.mclassdefs
do
303 for mpropdef
in mclassdef
.mpropdefs
do
304 if not mpropdef
isa MMethodDef then continue
305 if mpropdef
.has_supercall
then
306 all_super_calls
.add
(mpropdef
)
312 # lookup super calls and add it to the list of mmethods to build layout with
315 super_calls
= rta
.live_super_sends
317 super_calls
= all_super_calls
320 for mmethoddef
in super_calls
do
321 var mclass
= mmethoddef
.mclassdef
.mclass
322 mmethods
[mclass
].add
(mmethoddef
)
323 for descendant
in mclass
.in_hierarchy
(self.mainmodule
).smallers
do
324 mmethods
[descendant
].add
(mmethoddef
)
329 var meth_colorer
= new POSetBucketsColorer[MClass, PropertyLayoutElement](poset
, colorer
.conflicts
)
330 method_colors
= meth_colorer
.colorize
(mmethods
)
331 method_tables
= build_method_tables
(mclasses
, super_calls
)
332 compile_color_consts
(method_colors
)
334 # attribute null color to dead methods and supercalls
335 for mproperty
in dead_methods
do
336 compile_color_const
(new_visitor
, mproperty
, -1)
338 for mpropdef
in all_super_calls
do
339 if super_calls
.has
(mpropdef
) then continue
340 compile_color_const
(new_visitor
, mpropdef
, -1)
343 # attributes coloration
344 var attr_colorer
= new POSetBucketsColorer[MClass, MAttribute](poset
, colorer
.conflicts
)
345 attr_colors
= attr_colorer
.colorize
(mattributes
)
346 attr_tables
= build_attr_tables
(mclasses
)
347 compile_color_consts
(attr_colors
)
350 fun build_method_tables
(mclasses
: Set[MClass], super_calls
: Set[MMethodDef]): Map[MClass, Array[nullable MPropDef]] do
351 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
352 for mclass
in mclasses
do
353 var table
= new Array[nullable MPropDef]
354 tables
[mclass
] = table
356 var mproperties
= self.mainmodule
.properties
(mclass
)
357 var mtype
= mclass
.intro
.bound_mtype
359 for mproperty
in mproperties
do
360 if not mproperty
isa MMethod then continue
361 if not method_colors
.has_key
(mproperty
) then continue
362 var color
= method_colors
[mproperty
]
363 if table
.length
<= color
then
364 for i
in [table
.length
.. color
[ do
368 table
[color
] = mproperty
.lookup_first_definition
(mainmodule
, mtype
)
371 for supercall
in super_calls
do
372 if not mtype
.collect_mclassdefs
(mainmodule
).has
(supercall
.mclassdef
) then continue
374 var color
= method_colors
[supercall
]
375 if table
.length
<= color
then
376 for i
in [table
.length
.. color
[ do
380 var mmethoddef
= supercall
.lookup_next_definition
(mainmodule
, mtype
)
381 table
[color
] = mmethoddef
388 fun build_attr_tables
(mclasses
: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
389 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
390 for mclass
in mclasses
do
391 var table
= new Array[nullable MPropDef]
392 tables
[mclass
] = table
394 var mproperties
= self.mainmodule
.properties
(mclass
)
395 var mtype
= mclass
.intro
.bound_mtype
397 for mproperty
in mproperties
do
398 if not mproperty
isa MAttribute then continue
399 if not attr_colors
.has_key
(mproperty
) then continue
400 var color
= attr_colors
[mproperty
]
401 if table
.length
<= color
then
402 for i
in [table
.length
.. color
[ do
406 table
[color
] = mproperty
.lookup_first_definition
(mainmodule
, mtype
)
412 # colorize live types of the program
413 private fun do_type_coloring
: POSet[MType] do
414 # Collect types to colorize
415 var live_types
= runtime_type_analysis
.live_types
416 var live_cast_types
= runtime_type_analysis
.live_cast_types
417 var mtypes
= new HashSet[MType]
418 mtypes
.add_all
(live_types
)
419 mtypes
.add_all
(live_cast_types
)
420 for c
in self.box_kinds
.keys
do
421 mtypes
.add
(c
.mclass_type
)
425 var poset
= poset_from_mtypes
(mtypes
)
426 var colorer
= new POSetColorer[MType]
427 colorer
.colorize
(poset
)
428 type_ids
= colorer
.ids
429 type_colors
= colorer
.colors
430 type_tables
= build_type_tables
(poset
)
432 # VT and FT are stored with other unresolved types in the big resolution_tables
433 self.compile_resolution_tables
(mtypes
)
438 private fun poset_from_mtypes
(mtypes
: Set[MType]): POSet[MType] do
439 var poset
= new POSet[MType]
443 if e
== o
then continue
444 if e
.is_subtype
(mainmodule
, null, o
) then
453 fun build_type_tables
(mtypes
: POSet[MType]): Map[MType, Array[nullable MType]] do
454 var tables
= new HashMap[MType, Array[nullable MType]]
455 for mtype
in mtypes
do
456 var table
= new Array[nullable MType]
457 for sup
in mtypes
[mtype
].greaters
do
458 var color
= type_colors
[sup
]
459 if table
.length
<= color
then
460 for i
in [table
.length
.. color
[ do
466 tables
[mtype
] = table
471 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
472 # resolution_tables is used to perform a type resolution at runtime in O(1)
474 # During the visit of the body of classes, live_unresolved_types are collected
476 # Collect all live_unresolved_types (visited in the body of classes)
478 # Determinate fo each livetype what are its possible requested anchored types
479 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
480 for mtype
in self.runtime_type_analysis
.live_types
do
481 var set
= new HashSet[MType]
482 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
483 if self.live_unresolved_types
.has_key
(cd
) then
484 set
.add_all
(self.live_unresolved_types
[cd
])
487 mtype2unresolved
[mtype
] = set
490 # Compute the table layout with the prefered method
491 var colorer
= new BucketsColorer[MType, MType]
492 opentype_colors
= colorer
.colorize
(mtype2unresolved
)
493 resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
495 # Compile a C constant for each collected unresolved type.
496 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
497 var all_unresolved
= new HashSet[MType]
498 for t
in self.live_unresolved_types
.values
do
499 all_unresolved
.add_all
(t
)
501 var all_unresolved_types_colors
= new HashMap[MType, Int]
502 for t
in all_unresolved
do
503 if opentype_colors
.has_key
(t
) then
504 all_unresolved_types_colors
[t
] = opentype_colors
[t
]
506 all_unresolved_types_colors
[t
] = -1
509 self.compile_color_consts
(all_unresolved_types_colors
)
512 #for k, v in unresolved_types_tables.as(not null) do
513 # print "{k}: {v.join(", ")}"
518 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
519 var tables
= new HashMap[MClassType, Array[nullable MType]]
520 for mclasstype
, mtypes
in elements
do
521 var table
= new Array[nullable MType]
522 for mtype
in mtypes
do
523 var color
= opentype_colors
[mtype
]
524 if table
.length
<= color
then
525 for i
in [table
.length
.. color
[ do
531 tables
[mclasstype
] = table
536 # Separately compile all the method definitions of the module
537 fun compile_module_to_c
(mmodule
: MModule)
539 var old_module
= self.mainmodule
540 self.mainmodule
= mmodule
541 for cd
in mmodule
.mclassdefs
do
542 for pd
in cd
.mpropdefs
do
543 if not pd
isa MMethodDef then continue
544 var rta
= runtime_type_analysis
545 if modelbuilder
.toolcontext
.opt_skip_dead_methods
.value
and rta
!= null and not rta
.live_methoddefs
.has
(pd
) then continue
546 #print "compile {pd} @ {cd} @ {mmodule}"
547 var r
= pd
.separate_runtime_function
549 var r2
= pd
.virtual_runtime_function
550 r2
.compile_to_c
(self)
553 self.mainmodule
= old_module
556 # Globaly compile the type structure of a live type
557 fun compile_type_to_c
(mtype
: MType)
559 assert not mtype
.need_anchor
560 var is_live
= mtype
isa MClassType and runtime_type_analysis
.live_types
.has
(mtype
)
561 var is_cast_live
= runtime_type_analysis
.live_cast_types
.has
(mtype
)
562 var c_name
= mtype
.c_name
563 var v
= new SeparateCompilerVisitor(self)
564 v
.add_decl
("/* runtime type {mtype} */")
566 # extern const struct type_X
567 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
569 # const struct type_X
570 v
.add_decl
("const struct type type_{c_name} = \{")
572 # type id (for cast target)
574 v
.add_decl
("{type_ids[mtype]},")
576 v
.add_decl
("-1, /*CAST DEAD*/")
580 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
582 # type color (for cast target)
584 v
.add_decl
("{type_colors[mtype]},")
586 v
.add_decl
("-1, /*CAST DEAD*/")
590 if mtype
isa MNullableType then
596 # resolution table (for receiver)
598 var mclass_type
= mtype
.as_notnullable
599 assert mclass_type
isa MClassType
600 if resolution_tables
[mclass_type
].is_empty
then
601 v
.add_decl
("NULL, /*NO RESOLUTIONS*/")
603 compile_type_resolution_table
(mtype
)
604 v
.require_declaration
("resolution_table_{c_name}")
605 v
.add_decl
("&resolution_table_{c_name},")
608 v
.add_decl
("NULL, /*DEAD*/")
611 # cast table (for receiver)
613 v
.add_decl
("{self.type_tables[mtype].length},")
615 for stype
in self.type_tables
[mtype
] do
616 if stype
== null then
617 v
.add_decl
("-1, /* empty */")
619 v
.add_decl
("{type_ids[stype]}, /* {stype} */")
624 v
.add_decl
("0, \{\}, /*DEAD TYPE*/")
629 fun compile_type_resolution_table
(mtype
: MType) do
631 var mclass_type
= mtype
.as_notnullable
.as(MClassType)
633 # extern const struct resolution_table_X resolution_table_X
634 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
636 # const struct fts_table_X fts_table_X
638 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
639 v
.add_decl
("0, /* dummy */")
641 for t
in self.resolution_tables
[mclass_type
] do
643 v
.add_decl
("NULL, /* empty */")
645 # The table stores the result of the type resolution
646 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
647 # the value stored is tv.
648 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
649 # FIXME: What typeids means here? How can a tv not be live?
650 if type_ids
.has_key
(tv
) then
651 v
.require_declaration
("type_{tv.c_name}")
652 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
654 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
662 # Globally compile the table of the class mclass
663 # In a link-time optimisation compiler, tables are globally computed
664 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
665 fun compile_class_to_c
(mclass
: MClass)
667 var mtype
= mclass
.intro
.bound_mtype
668 var c_name
= mclass
.c_name
670 var vft
= self.method_tables
[mclass
]
671 var attrs
= self.attr_tables
[mclass
]
674 var rta
= runtime_type_analysis
675 var is_dead
= rta
!= null and not rta
.live_classes
.has
(mclass
) and mtype
.ctype
== "val*" and mclass
.name
!= "NativeArray" and mclass
.name
!= "Pointer"
677 v
.add_decl
("/* runtime class {c_name} */")
681 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
682 v
.add_decl
("const struct class class_{c_name} = \{")
683 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
685 for i
in [0 .. vft
.length
[ do
686 var mpropdef
= vft
[i
]
687 if mpropdef
== null then
688 v
.add_decl
("NULL, /* empty */")
690 assert mpropdef
isa MMethodDef
691 if rta
!= null and not rta
.live_methoddefs
.has
(mpropdef
) then
692 v
.add_decl
("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
695 var rf
= mpropdef
.virtual_runtime_function
696 v
.require_declaration
(rf
.c_name
)
697 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
704 if mtype
.ctype
!= "val*" or mtype
.mclass
.name
== "Pointer" then
705 # Is a primitive type or the Pointer class, not any other extern class
707 #Build instance struct
708 self.header
.add_decl
("struct instance_{c_name} \{")
709 self.header
.add_decl
("const struct type *type;")
710 self.header
.add_decl
("const struct class *class;")
711 self.header
.add_decl
("{mtype.ctype_extern} value;")
712 self.header
.add_decl
("\};")
714 if not rta
.live_types
.has
(mtype
) and mtype
.mclass
.name
!= "Pointer" then return
717 self.provide_declaration
("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype_extern});")
718 v
.add_decl
("/* allocate {mtype} */")
719 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype_extern} value) \{")
720 v
.add
("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
721 v
.compiler
.undead_types
.add
(mtype
)
722 v
.require_declaration
("type_{c_name}")
723 v
.add
("res->type = &type_{c_name};")
724 v
.require_declaration
("class_{c_name}")
725 v
.add
("res->class = &class_{c_name};")
726 v
.add
("res->value = value;")
727 v
.add
("return (val*)res;")
730 if mtype
.mclass
.name
!= "Pointer" then return
733 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
734 v
.add_decl
("/* allocate {mtype} */")
735 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
737 v
.add_abort
("{mclass} is DEAD")
739 var res
= v
.new_named_var
(mtype
, "self")
741 v
.add
("{res} = nit_alloc(sizeof(struct instance_{mtype.c_name}));")
742 v
.add
("{res}->type = type;")
743 hardening_live_type
(v
, "type")
744 v
.require_declaration
("class_{c_name}")
745 v
.add
("{res}->class = &class_{c_name};")
746 v
.add
("((struct instance_{mtype.c_name}*){res})->value = NULL;")
747 v
.add
("return {res};")
751 else if mclass
.name
== "NativeArray" then
752 #Build instance struct
753 self.header
.add_decl
("struct instance_{c_name} \{")
754 self.header
.add_decl
("const struct type *type;")
755 self.header
.add_decl
("const struct class *class;")
756 # NativeArrays are just a instance header followed by a length and an array of values
757 self.header
.add_decl
("int length;")
758 self.header
.add_decl
("val* values[0];")
759 self.header
.add_decl
("\};")
762 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
763 v
.add_decl
("/* allocate {mtype} */")
764 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
765 var res
= v
.get_name
("self")
766 v
.add_decl
("struct instance_{c_name} *{res};")
767 var mtype_elt
= mtype
.arguments
.first
768 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
769 v
.add
("{res}->type = type;")
770 hardening_live_type
(v
, "type")
771 v
.require_declaration
("class_{c_name}")
772 v
.add
("{res}->class = &class_{c_name};")
773 v
.add
("{res}->length = length;")
774 v
.add
("return (val*){res};")
777 else if mtype
.mclass
.kind
== extern_kind
and mtype
.mclass
.name
!= "NativeString" then
778 # Is an extern class (other than Pointer and NativeString)
779 # Pointer is caught in a previous `if`, and NativeString is internal
781 var pointer_type
= mainmodule
.pointer_type
783 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
784 v
.add_decl
("/* allocate {mtype} */")
785 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
787 v
.add_abort
("{mclass} is DEAD")
789 var res
= v
.new_named_var
(mtype
, "self")
791 v
.add
("{res} = nit_alloc(sizeof(struct instance_{pointer_type.c_name}));")
792 v
.add
("{res}->type = type;")
793 hardening_live_type
(v
, "type")
794 v
.require_declaration
("class_{c_name}")
795 v
.add
("{res}->class = &class_{c_name};")
796 v
.add
("((struct instance_{pointer_type.c_name}*){res})->value = NULL;")
797 v
.add
("return {res};")
804 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
805 v
.add_decl
("/* allocate {mtype} */")
806 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
808 v
.add_abort
("{mclass} is DEAD")
810 var res
= v
.new_named_var
(mtype
, "self")
812 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
813 v
.add
("{res}->type = type;")
814 hardening_live_type
(v
, "type")
815 v
.require_declaration
("class_{c_name}")
816 v
.add
("{res}->class = &class_{c_name};")
817 self.generate_init_attr
(v
, res
, mtype
)
819 v
.add
("return {res};")
824 # Add a dynamic test to ensure that the type referenced by `t` is a live type
825 fun hardening_live_type
(v
: VISITOR, t
: String)
827 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
828 v
.add
("if({t} == NULL) \{")
829 v
.add_abort
("type null")
831 v
.add
("if({t}->table_size == 0) \{")
832 v
.add
("PRINT_ERROR(\"Insantiation of a dead
type: %s\\n\
", {t}->name);")
833 v
.add_abort
("type dead")
837 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
841 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
842 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
843 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
844 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
846 redef fun display_stats
849 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
852 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
855 var tc
= self.modelbuilder
.toolcontext
856 tc
.info
("# implementation of method invocation",2)
857 var nb_invok_total
= modelbuilder
.nb_invok_by_tables
+ modelbuilder
.nb_invok_by_direct
+ modelbuilder
.nb_invok_by_inline
858 tc
.info
("total number of invocations: {nb_invok_total}",2)
859 tc
.info
("invocations by VFT send: {modelbuilder.nb_invok_by_tables} ({div(modelbuilder.nb_invok_by_tables,nb_invok_total)}%)",2)
860 tc
.info
("invocations by direct call: {modelbuilder.nb_invok_by_direct} ({div(modelbuilder.nb_invok_by_direct,nb_invok_total)}%)",2)
861 tc
.info
("invocations by inlining: {modelbuilder.nb_invok_by_inline} ({div(modelbuilder.nb_invok_by_inline,nb_invok_total)}%)",2)
866 print
"# size of subtyping tables"
867 print
"\ttotal \tholes"
870 for t
, table
in type_tables
do
871 total
+= table
.length
872 for e
in table
do if e
== null then holes
+= 1
874 print
"\t{total}\t{holes}"
876 print
"# size of resolution tables"
877 print
"\ttotal \tholes"
880 for t
, table
in resolution_tables
do
881 total
+= table
.length
882 for e
in table
do if e
== null then holes
+= 1
884 print
"\t{total}\t{holes}"
886 print
"# size of methods tables"
887 print
"\ttotal \tholes"
890 for t
, table
in method_tables
do
891 total
+= table
.length
892 for e
in table
do if e
== null then holes
+= 1
894 print
"\t{total}\t{holes}"
896 print
"# size of attributes tables"
897 print
"\ttotal \tholes"
900 for t
, table
in attr_tables
do
901 total
+= table
.length
902 for e
in table
do if e
== null then holes
+= 1
904 print
"\t{total}\t{holes}"
907 protected var isset_checks_count
= 0
908 protected var attr_read_count
= 0
910 fun display_isset_checks
do
911 print
"# total number of compiled attribute reads"
912 print
"\t{attr_read_count}"
913 print
"# total number of compiled isset-checks"
914 print
"\t{isset_checks_count}"
917 redef fun compile_nitni_structs
919 self.header
.add_decl
"""
920 struct nitni_instance \{
921 struct nitni_instance *next,
922 *prev; /* adjacent global references in global list */
923 int count; /* number of time this global reference has been marked */
924 struct instance *value;
930 redef fun finalize_ffi_for_module
(mmodule
)
932 var old_module
= self.mainmodule
933 self.mainmodule
= mmodule
935 self.mainmodule
= old_module
939 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
940 class SeparateCompilerVisitor
941 super AbstractCompilerVisitor
943 redef type COMPILER: SeparateCompiler
945 redef fun adapt_signature
(m
, args
)
947 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
948 var recv
= args
.first
949 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
950 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
952 for i
in [0..msignature
.arity
[ do
953 var t
= msignature
.mparameters
[i
].mtype
954 if i
== msignature
.vararg_rank
then
957 args
[i
+1] = self.autobox
(args
[i
+1], t
)
961 redef fun unbox_signature_extern
(m
, args
)
963 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
964 if not m
.mproperty
.is_init
and m
.is_extern
then
965 args
.first
= self.unbox_extern
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
967 for i
in [0..msignature
.arity
[ do
968 var t
= msignature
.mparameters
[i
].mtype
969 if i
== msignature
.vararg_rank
then
972 if m
.is_extern
then args
[i
+1] = self.unbox_extern
(args
[i
+1], t
)
976 redef fun autobox
(value
, mtype
)
978 if value
.mtype
== mtype
then
980 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
982 else if value
.mtype
.ctype
== "val*" then
983 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
984 else if mtype
.ctype
== "val*" then
985 var valtype
= value
.mtype
.as(MClassType)
986 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and mtype
.mclass
.name
!= "NativeString" then
987 valtype
= compiler
.mainmodule
.pointer_type
989 var res
= self.new_var
(mtype
)
990 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
991 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
992 self.add
("PRINT_ERROR(\"Dead code executed
!\\n\
"); show_backtrace(1);")
995 self.require_declaration
("BOX_{valtype.c_name}")
996 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
998 else if (value
.mtype
.ctype
== "void*" and mtype
.ctype
== "void*") or
999 (value
.mtype
.ctype
== "char*" and mtype
.ctype
== "void*") or
1000 (value
.mtype
.ctype
== "void*" and mtype
.ctype
== "char*") then
1003 # Bad things will appen!
1004 var res
= self.new_var
(mtype
)
1005 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
1006 self.add
("PRINT_ERROR(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); show_backtrace(1);")
1011 redef fun unbox_extern
(value
, mtype
)
1013 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and
1014 mtype
.mclass
.name
!= "NativeString" then
1015 var pointer_type
= compiler
.mainmodule
.pointer_type
1016 var res
= self.new_var_extern
(mtype
)
1017 self.add
"{res} = ((struct instance_{pointer_type.c_name}*){value})->value; /* unboxing {value.mtype} */"
1024 redef fun box_extern
(value
, mtype
)
1026 if mtype
isa MClassType and mtype
.mclass
.kind
== extern_kind
and
1027 mtype
.mclass
.name
!= "NativeString" then
1028 var valtype
= compiler
.mainmodule
.pointer_type
1029 var res
= self.new_var
(mtype
)
1030 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(value
.mtype
.as(MClassType)) then
1031 self.add
("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
1032 self.add
("PRINT_ERROR(\"Dead code executed
!\\n\
"); show_backtrace(1);")
1035 self.require_declaration
("BOX_{valtype.c_name}")
1036 self.add
("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
1037 self.require_declaration
("type_{mtype.c_name}")
1038 self.add
("{res}->type = &type_{mtype.c_name};")
1039 self.require_declaration
("class_{mtype.c_name}")
1040 self.add
("{res}->class = &class_{mtype.c_name};")
1047 # Return a C expression returning the runtime type structure of the value
1048 # The point of the method is to works also with primitives types.
1049 fun type_info
(value
: RuntimeVariable): String
1051 if value
.mtype
.ctype
== "val*" then
1052 return "{value}->type"
1054 compiler
.undead_types
.add
(value
.mtype
)
1055 self.require_declaration
("type_{value.mtype.c_name}")
1056 return "(&type_{value.mtype.c_name})"
1060 redef fun compile_callsite
(callsite
, args
)
1062 var rta
= compiler
.runtime_type_analysis
1063 var mmethod
= callsite
.mproperty
1064 # TODO: Inlining of new-style constructors
1065 if compiler
.modelbuilder
.toolcontext
.opt_direct_call_monomorph
.value
and rta
!= null and not mmethod
.is_root_init
then
1066 var tgs
= rta
.live_targets
(callsite
)
1067 if tgs
.length
== 1 then
1069 var res0
= before_send
(mmethod
, args
)
1070 var res
= call
(tgs
.first
, tgs
.first
.mclassdef
.bound_mtype
, args
)
1071 if res0
!= null then
1073 self.assign
(res0
, res
)
1076 add
("\}") # close the before_send
1082 redef fun send
(mmethod
, arguments
)
1084 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1085 # In order to shortcut the primitive, we need to find the most specific method
1086 # Howverr, because of performance (no flattening), we always work on the realmainmodule
1087 var m
= self.compiler
.mainmodule
1088 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1089 var res
= self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
1090 self.compiler
.mainmodule
= m
1094 return table_send
(mmethod
, arguments
, mmethod
.const_color
)
1097 # Handle common special cases before doing the effective method invocation
1098 # This methods handle the `==` and `!=` methods and the case of the null receiver.
1099 # Note: a { is open in the generated C, that enclose and protect the effective method invocation.
1100 # Client must not forget to close the } after them.
1102 # The value returned is the result of the common special cases.
1103 # If not null, client must compile it with the result of their own effective method invocation.
1105 # If `before_send` can shortcut the whole message sending, a dummy `if(0){`
1106 # is generated to cancel the effective method invocation that will follow
1107 # TODO: find a better approach
1108 private fun before_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1110 var res
: nullable RuntimeVariable = null
1111 var recv
= arguments
.first
1112 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
1113 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
1115 self.add
("if ({recv} == NULL) \{")
1116 if mmethod
.name
== "==" then
1117 res
= self.new_var
(bool_type
)
1118 var arg
= arguments
[1]
1119 if arg
.mcasttype
isa MNullableType then
1120 self.add
("{res} = ({arg} == NULL);")
1121 else if arg
.mcasttype
isa MNullType then
1122 self.add
("{res} = 1; /* is null */")
1124 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
1126 else if mmethod
.name
== "!=" then
1127 res
= self.new_var
(bool_type
)
1128 var arg
= arguments
[1]
1129 if arg
.mcasttype
isa MNullableType then
1130 self.add
("{res} = ({arg} != NULL);")
1131 else if arg
.mcasttype
isa MNullType then
1132 self.add
("{res} = 0; /* is null */")
1134 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
1137 self.add_abort
("Receiver is null")
1139 self.add
("\} else \{")
1143 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
1144 if res
== null then res
= self.new_var
(bool_type
)
1145 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
1146 var arg
= arguments
[1]
1147 if arg
.mcasttype
isa MNullType then
1148 if mmethod
.name
== "==" then
1149 self.add
("{res} = 0; /* arg is null but recv is not */")
1151 self.add
("{res} = 1; /* arg is null and recv is not */")
1153 self.add
("\}") # closes the null case
1154 self.add
("if (0) \{") # what follow is useless, CC will drop it
1160 private fun table_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable], const_color
: String): nullable RuntimeVariable
1162 compiler
.modelbuilder
.nb_invok_by_tables
+= 1
1163 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_tables++;")
1165 assert arguments
.length
== mmethod
.intro
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethod}. {arguments.length} arguments given.")
1166 var recv
= arguments
.first
1168 var res0
= before_send
(mmethod
, arguments
)
1170 var res
: nullable RuntimeVariable
1171 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
1172 var ret
= msignature
.return_mtype
1176 res
= self.new_var
(ret
)
1179 var s
= new FlatBuffer
1180 var ss
= new FlatBuffer
1184 for i
in [0..msignature
.arity
[ do
1185 var a
= arguments
[i
+1]
1186 var t
= msignature
.mparameters
[i
].mtype
1187 if i
== msignature
.vararg_rank
then
1188 t
= arguments
[i
+1].mcasttype
1190 s
.append
(", {t.ctype}")
1191 a
= self.autobox
(a
, t
)
1197 if ret
== null then r
= "void" else r
= ret
.ctype
1198 self.require_declaration
(const_color
)
1199 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1202 self.add
("{res} = {call};")
1207 if res0
!= null then
1213 self.add
("\}") # closes the null case
1218 redef fun call
(mmethoddef
, recvtype
, arguments
)
1220 assert arguments
.length
== mmethoddef
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
1222 var res
: nullable RuntimeVariable
1223 var ret
= mmethoddef
.msignature
.return_mtype
1227 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1228 res
= self.new_var
(ret
)
1231 if (mmethoddef
.is_intern
and not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
) or
1232 (compiler
.modelbuilder
.toolcontext
.opt_inline_some_methods
.value
and mmethoddef
.can_inline
(self)) then
1233 compiler
.modelbuilder
.nb_invok_by_inline
+= 1
1234 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_inline++;")
1235 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1236 frame
.returnlabel
= self.get_name
("RET_LABEL")
1237 frame
.returnvar
= res
1238 var old_frame
= self.frame
1240 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) on {arguments.first.inspect} */")
1241 mmethoddef
.compile_inside_to_c
(self, arguments
)
1242 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1244 self.frame
= old_frame
1247 compiler
.modelbuilder
.nb_invok_by_direct
+= 1
1248 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_direct++;")
1251 self.adapt_signature
(mmethoddef
, arguments
)
1253 self.require_declaration
(mmethoddef
.c_name
)
1255 self.add
("{mmethoddef.c_name}({arguments.join(", ")}); /* Direct call {mmethoddef} on {arguments.first.inspect}*/")
1258 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1264 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1266 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1267 # In order to shortcut the primitive, we need to find the most specific method
1268 # However, because of performance (no flattening), we always work on the realmainmodule
1269 var main
= self.compiler
.mainmodule
1270 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1271 var res
= self.monomorphic_super_send
(m
, recvtype
, arguments
)
1272 self.compiler
.mainmodule
= main
1275 return table_send
(m
.mproperty
, arguments
, m
.const_color
)
1278 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1280 # A vararg must be stored into an new array
1281 # The trick is that the dymaic type of the array may depends on the receiver
1282 # of the method (ie recv) if the static type is unresolved
1283 # This is more complex than usual because the unresolved type must not be resolved
1284 # with the current receiver (ie self).
1285 # Therefore to isolate the resolution from self, a local Frame is created.
1286 # One can see this implementation as an inlined method of the receiver whose only
1287 # job is to allocate the array
1288 var old_frame
= self.frame
1289 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1291 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1292 var res
= self.array_instance
(varargs
, elttype
)
1293 self.frame
= old_frame
1297 redef fun isset_attribute
(a
, recv
)
1299 self.check_recv_notnull
(recv
)
1300 var res
= self.new_var
(bool_type
)
1302 # What is the declared type of the attribute?
1303 var mtype
= a
.intro
.static_mtype
.as(not null)
1304 var intromclassdef
= a
.intro
.mclassdef
1305 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1307 if mtype
isa MNullableType then
1308 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1312 self.require_declaration
(a
.const_color
)
1313 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1314 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1317 if mtype
.ctype
== "val*" then
1318 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1320 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1326 redef fun read_attribute
(a
, recv
)
1328 self.check_recv_notnull
(recv
)
1330 # What is the declared type of the attribute?
1331 var ret
= a
.intro
.static_mtype
.as(not null)
1332 var intromclassdef
= a
.intro
.mclassdef
1333 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1335 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1336 self.compiler
.attr_read_count
+= 1
1337 self.add
("count_attr_reads++;")
1340 self.require_declaration
(a
.const_color
)
1341 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1342 # Get the attribute or a box (ie. always a val*)
1343 var cret
= self.object_type
.as_nullable
1344 var res
= self.new_var
(cret
)
1347 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1349 # Check for Uninitialized attribute
1350 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1351 self.add
("if (unlikely({res} == NULL)) \{")
1352 self.add_abort
("Uninitialized attribute {a.name}")
1355 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1356 self.compiler
.isset_checks_count
+= 1
1357 self.add
("count_isset_checks++;")
1361 # Return the attribute or its unboxed version
1362 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1363 return self.autobox
(res
, ret
)
1365 var res
= self.new_var
(ret
)
1366 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1368 # Check for Uninitialized attribute
1369 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1370 self.add
("if (unlikely({res} == NULL)) \{")
1371 self.add_abort
("Uninitialized attribute {a.name}")
1373 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1374 self.compiler
.isset_checks_count
+= 1
1375 self.add
("count_isset_checks++;")
1383 redef fun write_attribute
(a
, recv
, value
)
1385 self.check_recv_notnull
(recv
)
1387 # What is the declared type of the attribute?
1388 var mtype
= a
.intro
.static_mtype
.as(not null)
1389 var intromclassdef
= a
.intro
.mclassdef
1390 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1392 # Adapt the value to the declared type
1393 value
= self.autobox
(value
, mtype
)
1395 self.require_declaration
(a
.const_color
)
1396 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1397 var attr
= "{recv}->attrs[{a.const_color}]"
1398 if mtype
.ctype
!= "val*" then
1399 assert mtype
isa MClassType
1400 # The attribute is primitive, thus we store it in a box
1401 # The trick is to create the box the first time then resuse the box
1402 self.add
("if ({attr} != NULL) \{")
1403 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1404 self.add
("\} else \{")
1405 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1406 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1409 # The attribute is not primitive, thus store it direclty
1410 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1413 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1417 # Check that mtype is a live open type
1418 fun hardening_live_open_type
(mtype
: MType)
1420 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1421 self.require_declaration
(mtype
.const_color
)
1422 var col
= mtype
.const_color
1423 self.add
("if({col} == -1) \{")
1424 self.add
("PRINT_ERROR(\"Resolution of a dead open
type: %s\\n\
", \"{mtype.to_s.escape_to_c}\
");")
1425 self.add_abort
("open type dead")
1429 # Check that mtype it a pointer to a live cast type
1430 fun hardening_cast_type
(t
: String)
1432 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1433 add
("if({t} == NULL) \{")
1434 add_abort
("cast type null")
1436 add
("if({t}->id == -1 || {t}->color == -1) \{")
1437 add
("PRINT_ERROR(\"Try to cast on a dead cast
type: %s\\n\
", {t}->name);")
1438 add_abort
("cast type dead")
1442 redef fun init_instance
(mtype
)
1444 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1445 var compiler
= self.compiler
1446 if mtype
isa MGenericType and mtype
.need_anchor
then
1447 hardening_live_open_type
(mtype
)
1448 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1449 var recv
= self.frame
.arguments
.first
1450 var recv_type_info
= self.type_info
(recv
)
1451 self.require_declaration
(mtype
.const_color
)
1452 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1454 compiler
.undead_types
.add
(mtype
)
1455 self.require_declaration
("type_{mtype.c_name}")
1456 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1459 redef fun type_test
(value
, mtype
, tag
)
1461 self.add
("/* {value.inspect} isa {mtype} */")
1462 var compiler
= self.compiler
1464 var recv
= self.frame
.arguments
.first
1465 var recv_type_info
= self.type_info
(recv
)
1467 var res
= self.new_var
(bool_type
)
1469 var cltype
= self.get_name
("cltype")
1470 self.add_decl
("int {cltype};")
1471 var idtype
= self.get_name
("idtype")
1472 self.add_decl
("int {idtype};")
1474 var maybe_null
= self.maybe_null
(value
)
1475 var accept_null
= "0"
1477 if ntype
isa MNullableType then
1482 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1483 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1484 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1485 self.compiler
.count_type_test_skipped
[tag
] += 1
1486 self.add
("count_type_test_skipped_{tag}++;")
1491 if ntype
.need_anchor
then
1492 var type_struct
= self.get_name
("type_struct")
1493 self.add_decl
("const struct type* {type_struct};")
1495 # Either with resolution_table with a direct resolution
1496 hardening_live_open_type
(mtype
)
1497 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1498 self.require_declaration
(mtype
.const_color
)
1499 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.const_color}];")
1500 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1501 self.compiler
.count_type_test_unresolved
[tag
] += 1
1502 self.add
("count_type_test_unresolved_{tag}++;")
1504 hardening_cast_type
(type_struct
)
1505 self.add
("{cltype} = {type_struct}->color;")
1506 self.add
("{idtype} = {type_struct}->id;")
1507 if maybe_null
and accept_null
== "0" then
1508 var is_nullable
= self.get_name
("is_nullable")
1509 self.add_decl
("short int {is_nullable};")
1510 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1511 accept_null
= is_nullable
.to_s
1513 else if ntype
isa MClassType then
1514 compiler
.undead_types
.add
(mtype
)
1515 self.require_declaration
("type_{mtype.c_name}")
1516 hardening_cast_type
("(&type_{mtype.c_name})")
1517 self.add
("{cltype} = type_{mtype.c_name}.color;")
1518 self.add
("{idtype} = type_{mtype.c_name}.id;")
1519 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1520 self.compiler
.count_type_test_resolved
[tag
] += 1
1521 self.add
("count_type_test_resolved_{tag}++;")
1524 self.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); show_backtrace(1);")
1527 # check color is in table
1529 self.add
("if({value} == NULL) \{")
1530 self.add
("{res} = {accept_null};")
1531 self.add
("\} else \{")
1533 var value_type_info
= self.type_info
(value
)
1534 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1535 self.add
("{res} = 0;")
1536 self.add
("\} else \{")
1537 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1546 redef fun is_same_type_test
(value1
, value2
)
1548 var res
= self.new_var
(bool_type
)
1549 # Swap values to be symetric
1550 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1555 if value1
.mtype
.ctype
!= "val*" then
1556 if value2
.mtype
== value1
.mtype
then
1557 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1558 else if value2
.mtype
.ctype
!= "val*" then
1559 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1561 var mtype1
= value1
.mtype
.as(MClassType)
1562 self.require_declaration
("class_{mtype1.c_name}")
1563 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1566 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1571 redef fun class_name_string
(value
)
1573 var res
= self.get_name
("var_class_name")
1574 self.add_decl
("const char* {res};")
1575 if value
.mtype
.ctype
== "val*" then
1576 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1577 else if value
.mtype
isa MClassType and value
.mtype
.as(MClassType).mclass
.kind
== extern_kind
and
1578 value
.mtype
.as(MClassType).name
!= "NativeString" then
1579 self.add
"{res} = \"{value.mtype.as(MClassType).mclass}\
";"
1581 self.require_declaration
("type_{value.mtype.c_name}")
1582 self.add
"{res} = type_{value.mtype.c_name}.name;"
1587 redef fun equal_test
(value1
, value2
)
1589 var res
= self.new_var
(bool_type
)
1590 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1595 if value1
.mtype
.ctype
!= "val*" then
1596 if value2
.mtype
== value1
.mtype
then
1597 self.add
("{res} = {value1} == {value2};")
1598 else if value2
.mtype
.ctype
!= "val*" then
1599 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1601 var mtype1
= value1
.mtype
.as(MClassType)
1602 self.require_declaration
("class_{mtype1.c_name}")
1603 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1604 self.add
("if ({res}) \{")
1605 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1610 var maybe_null
= true
1611 var test
= new Array[String]
1612 var t1
= value1
.mcasttype
1613 if t1
isa MNullableType then
1614 test
.add
("{value1} != NULL")
1619 var t2
= value2
.mcasttype
1620 if t2
isa MNullableType then
1621 test
.add
("{value2} != NULL")
1627 var incompatible
= false
1629 if t1
.ctype
!= "val*" then
1632 # No need to compare class
1633 else if t2
.ctype
!= "val*" then
1635 else if can_be_primitive
(value2
) then
1636 test
.add
("{value1}->class == {value2}->class")
1640 else if t2
.ctype
!= "val*" then
1642 if can_be_primitive
(value1
) then
1643 test
.add
("{value1}->class == {value2}->class")
1651 if incompatible
then
1653 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1656 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1660 if primitive
!= null then
1661 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1662 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1663 test
.add
("{value1}->class == {value2}->class")
1664 var s
= new Array[String]
1665 for t
, v
in self.compiler
.box_kinds
do
1666 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1668 test
.add
("({s.join(" || ")})")
1670 self.add
("{res} = {value1} == {value2};")
1673 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1677 fun can_be_primitive
(value
: RuntimeVariable): Bool
1679 var t
= value
.mcasttype
.as_notnullable
1680 if not t
isa MClassType then return false
1681 var k
= t
.mclass
.kind
1682 return k
== interface_kind
or t
.ctype
!= "val*"
1685 fun maybe_null
(value
: RuntimeVariable): Bool
1687 var t
= value
.mcasttype
1688 return t
isa MNullableType or t
isa MNullType
1691 redef fun array_instance
(array
, elttype
)
1693 var nclass
= self.get_class
("NativeArray")
1694 var arrayclass
= self.get_class
("Array")
1695 var arraytype
= arrayclass
.get_mtype
([elttype
])
1696 var res
= self.init_instance
(arraytype
)
1697 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1698 var length
= self.int_instance
(array
.length
)
1699 var nat
= native_array_instance
(elttype
, length
)
1700 for i
in [0..array
.length
[ do
1701 var r
= self.autobox
(array
[i
], self.object_type
)
1702 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1704 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1709 redef fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1711 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1712 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1713 assert mtype
isa MGenericType
1714 var compiler
= self.compiler
1715 if mtype
.need_anchor
then
1716 hardening_live_open_type
(mtype
)
1717 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1718 var recv
= self.frame
.arguments
.first
1719 var recv_type_info
= self.type_info
(recv
)
1720 self.require_declaration
(mtype
.const_color
)
1721 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1723 compiler
.undead_types
.add
(mtype
)
1724 self.require_declaration
("type_{mtype.c_name}")
1725 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1728 redef fun native_array_def
(pname
, ret_type
, arguments
)
1730 var elttype
= arguments
.first
.mtype
1731 var nclass
= self.get_class
("NativeArray")
1732 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1733 if pname
== "[]" then
1734 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1736 else if pname
== "[]=" then
1737 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1739 else if pname
== "length" then
1740 self.ret
(self.new_expr
("((struct instance_{nclass.c_name}*){arguments[0]})->length", ret_type
.as(not null)))
1742 else if pname
== "copy_to" then
1743 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1744 self.add
("memmove({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1749 redef fun calloc_array
(ret_type
, arguments
)
1751 var mclass
= self.get_class
("ArrayCapable")
1752 var ft
= mclass
.mparameters
.first
1753 var res
= self.native_array_instance
(ft
, arguments
[1])
1757 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1758 assert mtype
.need_anchor
1759 var compiler
= self.compiler
1760 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1761 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1763 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1767 redef class MMethodDef
1768 fun separate_runtime_function
: AbstractRuntimeFunction
1770 var res
= self.separate_runtime_function_cache
1772 res
= new SeparateRuntimeFunction(self)
1773 self.separate_runtime_function_cache
= res
1777 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1779 fun virtual_runtime_function
: AbstractRuntimeFunction
1781 var res
= self.virtual_runtime_function_cache
1783 res
= new VirtualRuntimeFunction(self)
1784 self.virtual_runtime_function_cache
= res
1788 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1791 # The C function associated to a methoddef separately compiled
1792 class SeparateRuntimeFunction
1793 super AbstractRuntimeFunction
1795 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1797 redef fun to_s
do return self.mmethoddef
.to_s
1799 redef fun compile_to_c
(compiler
)
1801 var mmethoddef
= self.mmethoddef
1803 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1804 var v
= compiler
.new_visitor
1805 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1806 var arguments
= new Array[RuntimeVariable]
1807 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1810 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1812 var sig
= new FlatBuffer
1813 var comment
= new FlatBuffer
1814 var ret
= msignature
.return_mtype
1816 sig
.append
("{ret.ctype} ")
1820 sig
.append
(self.c_name
)
1821 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1822 comment
.append
("({selfvar}: {selfvar.mtype}")
1823 arguments
.add
(selfvar
)
1824 for i
in [0..msignature
.arity
[ do
1825 var mtype
= msignature
.mparameters
[i
].mtype
1826 if i
== msignature
.vararg_rank
then
1827 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1829 comment
.append
(", {mtype}")
1830 sig
.append
(", {mtype.ctype} p{i}")
1831 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1832 arguments
.add
(argvar
)
1837 comment
.append
(": {ret}")
1839 compiler
.provide_declaration
(self.c_name
, "{sig};")
1841 v
.add_decl
("/* method {self} for {comment} */")
1842 v
.add_decl
("{sig} \{")
1844 frame
.returnvar
= v
.new_var
(ret
)
1846 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1848 if recv
!= arguments
.first
.mtype
then
1849 #print "{self} {recv} {arguments.first}"
1851 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1853 v
.add
("{frame.returnlabel.as(not null)}:;")
1855 v
.add
("return {frame.returnvar.as(not null)};")
1858 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})"
1862 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1863 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1864 class VirtualRuntimeFunction
1865 super AbstractRuntimeFunction
1867 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1869 redef fun to_s
do return self.mmethoddef
.to_s
1871 redef fun compile_to_c
(compiler
)
1873 var mmethoddef
= self.mmethoddef
1875 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1876 var v
= compiler
.new_visitor
1877 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1878 var arguments
= new Array[RuntimeVariable]
1879 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1882 var sig
= new FlatBuffer
1883 var comment
= new FlatBuffer
1885 # Because the function is virtual, the signature must match the one of the original class
1886 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1887 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1888 var ret
= msignature
.return_mtype
1890 sig
.append
("{ret.ctype} ")
1894 sig
.append
(self.c_name
)
1895 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1896 comment
.append
("({selfvar}: {selfvar.mtype}")
1897 arguments
.add
(selfvar
)
1898 for i
in [0..msignature
.arity
[ do
1899 var mtype
= msignature
.mparameters
[i
].mtype
1900 if i
== msignature
.vararg_rank
then
1901 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1903 comment
.append
(", {mtype}")
1904 sig
.append
(", {mtype.ctype} p{i}")
1905 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1906 arguments
.add
(argvar
)
1911 comment
.append
(": {ret}")
1913 compiler
.provide_declaration
(self.c_name
, "{sig};")
1915 v
.add_decl
("/* method {self} for {comment} */")
1916 v
.add_decl
("{sig} \{")
1918 frame
.returnvar
= v
.new_var
(ret
)
1920 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1922 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1924 assert subret
!= null
1925 v
.assign
(frame
.returnvar
.as(not null), subret
)
1928 v
.add
("{frame.returnlabel.as(not null)}:;")
1930 v
.add
("return {frame.returnvar.as(not null)};")
1933 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})"
1937 redef fun call
(v
, arguments
) do abort
1941 fun const_color
: String do return "COLOR_{c_name}"
1944 interface PropertyLayoutElement end
1946 redef class MProperty
1947 super PropertyLayoutElement
1948 fun const_color
: String do return "COLOR_{c_name}"
1951 redef class MPropDef
1952 super PropertyLayoutElement
1953 fun const_color
: String do return "COLOR_{c_name}"
1956 redef class AMethPropdef
1957 # The semi-global compilation does not support inlining calls to extern news
1958 redef fun can_inline
1961 if m
!= null and m
.mproperty
.is_init
and m
.is_extern
then return false