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
19 import layout_builders
20 import rapid_type_analysis
22 # Add separate compiler specific options
23 redef class ToolContext
25 var opt_separate
: OptionBool = new OptionBool("Use separate compilation", "--separate")
27 var opt_no_inline_intern
: OptionBool = new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
28 # --no-union-attribute
29 var opt_no_union_attribute
: OptionBool = 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
: OptionBool = new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
32 # --inline-coloring-numbers
33 var opt_inline_coloring_numbers
: OptionBool = new OptionBool("Inline colors and ids (semi-global)", "--inline-coloring-numbers")
34 # --inline-some-methods
35 var opt_inline_some_methods
: OptionBool = 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
: OptionBool = 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_no_colo_dead_methods
= new OptionBool("Do not colorize dead methods", "--no-colo-dead-methods")
45 var opt_tables_metrics
: OptionBool = 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_no_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_main_function
111 for m
in mainmodule
.in_importation
.greaters
do
112 self.toolcontext
.info
("Generate C for module {m}", 2)
113 compiler
.new_file
("{m.name}.sep")
114 compiler
.compile_module_to_c
(m
)
117 # compile live & cast type structures
118 self.toolcontext
.info
("Type coloring", 2)
119 compiler
.new_file
("{mainmodule.name}.types")
120 var mtypes
= compiler
.do_type_coloring
122 compiler
.compile_type_to_c
(t
)
124 # compile remaining types structures (useless but needed for the symbol resolution at link-time)
125 for t
in compiler
.undead_types
do
126 if mtypes
.has
(t
) then continue
127 compiler
.compile_type_to_c
(t
)
130 compiler
.display_stats
133 self.toolcontext
.info
("*** END GENERATING C: {time1-time0} ***", 2)
134 write_and_make
(compiler
)
137 # Count number of invocations by VFT
138 private var nb_invok_by_tables
= 0
139 # Count number of invocations by direct call
140 private var nb_invok_by_direct
= 0
141 # Count number of invocations by inlining
142 private var nb_invok_by_inline
= 0
145 # Singleton that store the knowledge about the separate compilation process
146 class SeparateCompiler
147 super AbstractCompiler
149 redef type VISITOR: SeparateCompilerVisitor
151 # The result of the RTA (used to know live types and methods)
152 var runtime_type_analysis
: nullable RapidTypeAnalysis
154 private var undead_types
: Set[MType] = new HashSet[MType]
155 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
157 private var type_layout
: nullable Layout[MType]
158 private var resolution_layout
: nullable Layout[MType]
159 protected var method_layout
: nullable Layout[PropertyLayoutElement]
160 protected var attr_layout
: nullable Layout[MAttribute]
162 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: nullable RapidTypeAnalysis) do
163 super(mainmodule
, mmbuilder
)
164 var file
= new_file
("nit.common")
165 self.header
= new CodeWriter(file
)
166 self.runtime_type_analysis
= runtime_type_analysis
167 self.compile_box_kinds
170 redef fun compile_header_structs
do
171 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
172 self.compile_header_attribute_structs
173 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
175 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
176 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. */")
177 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
178 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
179 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
182 fun compile_header_attribute_structs
184 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
185 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
187 self.header
.add_decl
("typedef union \{")
188 self.header
.add_decl
("void* val;")
189 for c
, v
in self.box_kinds
do
190 var t
= c
.mclass_type
191 self.header
.add_decl
("{t.ctype} {t.ctypename};")
193 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
197 fun compile_box_kinds
199 # Collect all bas box class
200 # FIXME: this is not completely fine with a separate compilation scheme
201 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
202 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
203 if classes
== null then continue
204 assert classes
.length
== 1 else print classes
.join
(", ")
205 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
209 var box_kinds
= new HashMap[MClass, Int]
211 fun box_kind_of
(mclass
: MClass): Int
213 if mclass
.mclass_type
.ctype
== "val*" then
215 else if mclass
.kind
== extern_kind
then
216 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
218 return self.box_kinds
[mclass
]
223 fun compile_color_consts
(colors
: Map[Object, Int]) do
225 for m
, c
in colors
do
226 compile_color_const
(v
, m
, c
)
230 fun compile_color_const
(v
: SeparateCompilerVisitor, m
: Object, color
: Int) do
231 if color_consts_done
.has
(m
) then return
232 if m
isa MProperty then
233 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
234 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
236 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
237 v
.add
("const int {m.const_color} = {color};")
239 else if m
isa MPropDef 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 MType 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};")
254 color_consts_done
.add
(m
)
257 private var color_consts_done
= new HashSet[Object]
259 # colorize classe properties
260 fun do_property_coloring
do
262 var rta
= runtime_type_analysis
265 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
266 var poset
= mainmodule
.flatten_mclass_hierarchy
267 var colorer
= new POSetColorer[MClass]
268 colorer
.colorize
(poset
)
270 # The dead methods, still need to provide a dead color symbol
271 var dead_methods
= new Array[MMethod]
273 # lookup properties to build layout with
274 var mmethods
= new HashMap[MClass, Set[PropertyLayoutElement]]
275 var mattributes
= new HashMap[MClass, Set[MAttribute]]
276 for mclass
in mclasses
do
277 mmethods
[mclass
] = new HashSet[PropertyLayoutElement]
278 mattributes
[mclass
] = new HashSet[MAttribute]
279 for mprop
in self.mainmodule
.properties
(mclass
) do
280 if mprop
isa MMethod then
281 if modelbuilder
.toolcontext
.opt_no_colo_dead_methods
.value
and rta
!= null and not rta
.live_methods
.has
(mprop
) then
282 dead_methods
.add
(mprop
)
285 mmethods
[mclass
].add
(mprop
)
286 else if mprop
isa MAttribute then
287 mattributes
[mclass
].add
(mprop
)
292 # Collect all super calls (dead or not)
293 var all_super_calls
= new HashSet[MMethodDef]
294 for mmodule
in self.mainmodule
.in_importation
.greaters
do
295 for mclassdef
in mmodule
.mclassdefs
do
296 for mpropdef
in mclassdef
.mpropdefs
do
297 if not mpropdef
isa MMethodDef then continue
298 if mpropdef
.has_supercall
then
299 all_super_calls
.add
(mpropdef
)
305 # lookup super calls and add it to the list of mmethods to build layout with
308 super_calls
= rta
.live_super_sends
310 super_calls
= all_super_calls
313 for mmethoddef
in super_calls
do
314 var mclass
= mmethoddef
.mclassdef
.mclass
315 mmethods
[mclass
].add
(mmethoddef
)
316 for descendant
in mclass
.in_hierarchy
(self.mainmodule
).smallers
do
317 mmethods
[descendant
].add
(mmethoddef
)
322 var meth_colorer
= new POSetBucketsColorer[MClass, PropertyLayoutElement](poset
, colorer
.conflicts
)
323 self.method_layout
= new Layout[PropertyLayoutElement]
324 self.method_layout
.pos
= meth_colorer
.colorize
(mmethods
)
325 self.method_tables
= build_method_tables
(mclasses
, super_calls
)
326 self.compile_color_consts
(method_layout
.pos
)
328 # attribute null color to dead methods and supercalls
329 for mproperty
in dead_methods
do
330 compile_color_const
(new_visitor
, mproperty
, -1)
332 for mpropdef
in all_super_calls
do
333 if super_calls
.has
(mpropdef
) then continue
334 compile_color_const
(new_visitor
, mpropdef
, -1)
337 # attributes coloration
338 var attr_colorer
= new POSetBucketsColorer[MClass, MAttribute](poset
, colorer
.conflicts
)
339 self.attr_layout
= new Layout[MAttribute]
340 self.attr_layout
.pos
= attr_colorer
.colorize
(mattributes
)
341 self.attr_tables
= build_attr_tables
(mclasses
)
342 self.compile_color_consts
(attr_layout
.pos
)
345 fun build_method_tables
(mclasses
: Set[MClass], super_calls
: Set[MMethodDef]): Map[MClass, Array[nullable MPropDef]] do
346 var layout
= self.method_layout
347 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
348 for mclass
in mclasses
do
349 var table
= new Array[nullable MPropDef]
350 var supercalls
= new List[MMethodDef]
352 # first, fill table from parents by reverse linearization order
353 var parents
= new Array[MClass]
354 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
355 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
356 self.mainmodule
.linearize_mclasses
(parents
)
359 for parent
in parents
do
360 if parent
== mclass
then continue
361 for mproperty
in self.mainmodule
.properties
(parent
) do
362 if not mproperty
isa MMethod then continue
363 if not layout
.pos
.has_key
(mproperty
) then continue
364 var color
= layout
.pos
[mproperty
]
365 if table
.length
<= color
then
366 for i
in [table
.length
.. color
[ do
370 for mpropdef
in mproperty
.mpropdefs
do
371 if mpropdef
.mclassdef
.mclass
== parent
then
372 table
[color
] = mpropdef
377 # lookup for super calls in super classes
378 for mmethoddef
in super_calls
do
379 for mclassdef
in parent
.mclassdefs
do
380 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
381 supercalls
.add
(mmethoddef
)
387 # then override with local properties
388 for mproperty
in self.mainmodule
.properties
(mclass
) do
389 if not mproperty
isa MMethod then continue
390 if not layout
.pos
.has_key
(mproperty
) then continue
391 var color
= layout
.pos
[mproperty
]
392 if table
.length
<= color
then
393 for i
in [table
.length
.. color
[ do
397 for mpropdef
in mproperty
.mpropdefs
do
398 if mpropdef
.mclassdef
.mclass
== mclass
then
399 table
[color
] = mpropdef
404 # lookup for super calls in local class
405 for mmethoddef
in super_calls
do
406 for mclassdef
in mclass
.mclassdefs
do
407 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
408 supercalls
.add
(mmethoddef
)
412 # insert super calls in table according to receiver
413 for supercall
in supercalls
do
414 var color
= layout
.pos
[supercall
]
415 if table
.length
<= color
then
416 for i
in [table
.length
.. color
[ do
420 var mmethoddef
= supercall
.lookup_next_definition
(self.mainmodule
, mclass
.intro
.bound_mtype
)
421 table
[color
] = mmethoddef
423 tables
[mclass
] = table
428 fun build_attr_tables
(mclasses
: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
429 var layout
= self.attr_layout
430 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
431 for mclass
in mclasses
do
432 var table
= new Array[nullable MPropDef]
433 # first, fill table from parents by reverse linearization order
434 var parents
= new Array[MClass]
435 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
436 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
437 self.mainmodule
.linearize_mclasses
(parents
)
439 for parent
in parents
do
440 if parent
== mclass
then continue
441 for mproperty
in self.mainmodule
.properties
(parent
) do
442 if not mproperty
isa MAttribute then continue
443 var color
= layout
.pos
[mproperty
]
444 if table
.length
<= color
then
445 for i
in [table
.length
.. color
[ do
449 for mpropdef
in mproperty
.mpropdefs
do
450 if mpropdef
.mclassdef
.mclass
== parent
then
451 table
[color
] = mpropdef
457 # then override with local properties
458 for mproperty
in self.mainmodule
.properties
(mclass
) do
459 if not mproperty
isa MAttribute then continue
460 var color
= layout
.pos
[mproperty
]
461 if table
.length
<= color
then
462 for i
in [table
.length
.. color
[ do
466 for mpropdef
in mproperty
.mpropdefs
do
467 if mpropdef
.mclassdef
.mclass
== mclass
then
468 table
[color
] = mpropdef
472 tables
[mclass
] = table
477 # colorize live types of the program
478 private fun do_type_coloring
: POSet[MType] do
479 # Collect types to colorize
480 var live_types
= runtime_type_analysis
.live_types
481 var live_cast_types
= runtime_type_analysis
.live_cast_types
482 var mtypes
= new HashSet[MType]
483 mtypes
.add_all
(live_types
)
484 mtypes
.add_all
(live_cast_types
)
485 for c
in self.box_kinds
.keys
do
486 mtypes
.add
(c
.mclass_type
)
490 var poset
= poset_from_mtypes
(mtypes
)
491 var colorer
= new POSetColorer[MType]
492 colorer
.colorize
(poset
)
493 self.type_layout
= colorer
.to_layout
494 self.type_tables
= self.build_type_tables
(poset
)
496 # VT and FT are stored with other unresolved types in the big resolution_tables
497 self.compile_resolution_tables
(mtypes
)
502 private fun poset_from_mtypes
(mtypes
: Set[MType]): POSet[MType] do
503 var poset
= new POSet[MType]
507 if e
== o
then continue
508 if e
.is_subtype
(mainmodule
, null, o
) then
517 fun build_type_tables
(mtypes
: POSet[MType]): Map[MType, Array[nullable MType]] do
518 var tables
= new HashMap[MType, Array[nullable MType]]
519 var layout
= self.type_layout
520 for mtype
in mtypes
do
521 var table
= new Array[nullable MType]
522 for sup
in mtypes
[mtype
].greaters
do
524 if layout
isa PHLayout[MType, MType] then
525 color
= layout
.hashes
[mtype
][sup
]
527 color
= layout
.pos
[sup
]
529 if table
.length
<= color
then
530 for i
in [table
.length
.. color
[ do
536 tables
[mtype
] = table
541 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
542 # resolution_tables is used to perform a type resolution at runtime in O(1)
544 # During the visit of the body of classes, live_unresolved_types are collected
546 # Collect all live_unresolved_types (visited in the body of classes)
548 # Determinate fo each livetype what are its possible requested anchored types
549 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
550 for mtype
in self.runtime_type_analysis
.live_types
do
551 var set
= new HashSet[MType]
552 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
553 if self.live_unresolved_types
.has_key
(cd
) then
554 set
.add_all
(self.live_unresolved_types
[cd
])
557 mtype2unresolved
[mtype
] = set
560 # Compute the table layout with the prefered method
561 var colorer
= new BucketsColorer[MType, MType]
562 resolution_layout
= new Layout[MType]
563 resolution_layout
.pos
= colorer
.colorize
(mtype2unresolved
)
564 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
566 # Compile a C constant for each collected unresolved type.
567 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
568 var all_unresolved
= new HashSet[MType]
569 for t
in self.live_unresolved_types
.values
do
570 all_unresolved
.add_all
(t
)
572 var all_unresolved_types_colors
= new HashMap[MType, Int]
573 for t
in all_unresolved
do
574 if self.resolution_layout
.pos
.has_key
(t
) then
575 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
577 all_unresolved_types_colors
[t
] = -1
580 self.compile_color_consts
(all_unresolved_types_colors
)
583 #for k, v in unresolved_types_tables.as(not null) do
584 # print "{k}: {v.join(", ")}"
589 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
590 var tables
= new HashMap[MClassType, Array[nullable MType]]
591 var layout
= self.resolution_layout
592 for mclasstype
, mtypes
in elements
do
593 var table
= new Array[nullable MType]
594 for mtype
in mtypes
do
596 if layout
isa PHLayout[MClassType, MType] then
597 color
= layout
.hashes
[mclasstype
][mtype
]
599 color
= layout
.pos
[mtype
]
601 if table
.length
<= color
then
602 for i
in [table
.length
.. color
[ do
608 tables
[mclasstype
] = table
613 # Separately compile all the method definitions of the module
614 fun compile_module_to_c
(mmodule
: MModule)
616 var old_module
= self.mainmodule
617 self.mainmodule
= mmodule
618 for cd
in mmodule
.mclassdefs
do
619 for pd
in cd
.mpropdefs
do
620 if not pd
isa MMethodDef then continue
621 var rta
= runtime_type_analysis
622 if modelbuilder
.toolcontext
.opt_skip_dead_methods
.value
and rta
!= null and not rta
.live_methoddefs
.has
(pd
) then continue
623 #print "compile {pd} @ {cd} @ {mmodule}"
624 var r
= pd
.separate_runtime_function
626 var r2
= pd
.virtual_runtime_function
627 r2
.compile_to_c
(self)
630 self.mainmodule
= old_module
633 # Globaly compile the type structure of a live type
634 fun compile_type_to_c
(mtype
: MType)
636 assert not mtype
.need_anchor
637 var layout
= self.type_layout
638 var is_live
= mtype
isa MClassType and runtime_type_analysis
.live_types
.has
(mtype
)
639 var is_cast_live
= runtime_type_analysis
.live_cast_types
.has
(mtype
)
640 var c_name
= mtype
.c_name
641 var v
= new SeparateCompilerVisitor(self)
642 v
.add_decl
("/* runtime type {mtype} */")
644 # extern const struct type_X
645 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
647 # const struct type_X
648 v
.add_decl
("const struct type type_{c_name} = \{")
650 # type id (for cast target)
652 v
.add_decl
("{layout.ids[mtype]},")
654 v
.add_decl
("-1, /*CAST DEAD*/")
658 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
660 # type color (for cast target)
662 if layout
isa PHLayout[MType, MType] then
663 v
.add_decl
("{layout.masks[mtype]},")
665 v
.add_decl
("{layout.pos[mtype]},")
668 v
.add_decl
("-1, /*CAST DEAD*/")
672 if mtype
isa MNullableType then
678 # resolution table (for receiver)
680 var mclass_type
= mtype
681 if mclass_type
isa MNullableType then mclass_type
= mclass_type
.mtype
682 assert mclass_type
isa MClassType
683 if resolution_tables
[mclass_type
].is_empty
then
684 v
.add_decl
("NULL, /*NO RESOLUTIONS*/")
686 compile_type_resolution_table
(mtype
)
687 v
.require_declaration
("resolution_table_{c_name}")
688 v
.add_decl
("&resolution_table_{c_name},")
691 v
.add_decl
("NULL, /*DEAD*/")
694 # cast table (for receiver)
696 v
.add_decl
("{self.type_tables[mtype].length},")
698 for stype
in self.type_tables
[mtype
] do
699 if stype
== null then
700 v
.add_decl
("-1, /* empty */")
702 v
.add_decl
("{layout.ids[stype]}, /* {stype} */")
707 v
.add_decl
("0, \{\}, /*DEAD TYPE*/")
712 fun compile_type_resolution_table
(mtype
: MType) do
714 var mclass_type
: MClassType
715 if mtype
isa MNullableType then
716 mclass_type
= mtype
.mtype
.as(MClassType)
718 mclass_type
= mtype
.as(MClassType)
721 var layout
= self.resolution_layout
723 # extern const struct resolution_table_X resolution_table_X
724 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
726 # const struct fts_table_X fts_table_X
728 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
729 if layout
isa PHLayout[MClassType, MType] then
730 v
.add_decl
("{layout.masks[mclass_type]},")
732 v
.add_decl
("0, /* dummy */")
735 for t
in self.resolution_tables
[mclass_type
] do
737 v
.add_decl
("NULL, /* empty */")
739 # The table stores the result of the type resolution
740 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
741 # the value stored is tv.
742 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
743 # FIXME: What typeids means here? How can a tv not be live?
744 if self.type_layout
.ids
.has_key
(tv
) then
745 v
.require_declaration
("type_{tv.c_name}")
746 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
748 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
756 # Globally compile the table of the class mclass
757 # In a link-time optimisation compiler, tables are globally computed
758 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
759 fun compile_class_to_c
(mclass
: MClass)
761 var mtype
= mclass
.intro
.bound_mtype
762 var c_name
= mclass
.c_name
763 var c_instance_name
= mclass
.c_instance_name
765 var vft
= self.method_tables
[mclass
]
766 var attrs
= self.attr_tables
[mclass
]
769 var rta
= runtime_type_analysis
770 var is_dead
= rta
!= null and not rta
.live_classes
.has
(mclass
) and mtype
.ctype
== "val*" and mclass
.name
!= "NativeArray"
772 v
.add_decl
("/* runtime class {c_name} */")
776 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
777 v
.add_decl
("const struct class class_{c_name} = \{")
778 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
780 for i
in [0 .. vft
.length
[ do
781 var mpropdef
= vft
[i
]
782 if mpropdef
== null then
783 v
.add_decl
("NULL, /* empty */")
785 assert mpropdef
isa MMethodDef
786 if rta
!= null and not rta
.live_methoddefs
.has
(mpropdef
) then
787 v
.add_decl
("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
790 var rf
= mpropdef
.virtual_runtime_function
791 v
.require_declaration
(rf
.c_name
)
792 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
799 if mtype
.ctype
!= "val*" then
800 if mtype
.mclass
.name
== "Pointer" or mtype
.mclass
.kind
!= extern_kind
then
801 #Build instance struct
802 self.header
.add_decl
("struct instance_{c_instance_name} \{")
803 self.header
.add_decl
("const struct type *type;")
804 self.header
.add_decl
("const struct class *class;")
805 self.header
.add_decl
("{mtype.ctype} value;")
806 self.header
.add_decl
("\};")
809 if not rta
.live_types
.has
(mtype
) then return
812 self.provide_declaration
("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
813 v
.add_decl
("/* allocate {mtype} */")
814 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
815 v
.add
("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
816 v
.require_declaration
("type_{c_name}")
817 v
.add
("res->type = &type_{c_name};")
818 v
.require_declaration
("class_{c_name}")
819 v
.add
("res->class = &class_{c_name};")
820 v
.add
("res->value = value;")
821 v
.add
("return (val*)res;")
824 else if mclass
.name
== "NativeArray" then
825 #Build instance struct
826 self.header
.add_decl
("struct instance_{c_instance_name} \{")
827 self.header
.add_decl
("const struct type *type;")
828 self.header
.add_decl
("const struct class *class;")
829 # NativeArrays are just a instance header followed by a length and an array of values
830 self.header
.add_decl
("int length;")
831 self.header
.add_decl
("val* values[0];")
832 self.header
.add_decl
("\};")
835 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
836 v
.add_decl
("/* allocate {mtype} */")
837 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
838 var res
= v
.get_name
("self")
839 v
.add_decl
("struct instance_{c_instance_name} *{res};")
840 var mtype_elt
= mtype
.arguments
.first
841 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_instance_name}) + length*sizeof({mtype_elt.ctype}));")
842 v
.add
("{res}->type = type;")
843 hardening_live_type
(v
, "type")
844 v
.require_declaration
("class_{c_name}")
845 v
.add
("{res}->class = &class_{c_name};")
846 v
.add
("{res}->length = length;")
847 v
.add
("return (val*){res};")
853 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
854 v
.add_decl
("/* allocate {mtype} */")
855 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
857 v
.add_abort
("{mclass} is DEAD")
859 var res
= v
.new_named_var
(mtype
, "self")
861 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
862 v
.add
("{res}->type = type;")
863 hardening_live_type
(v
, "type")
864 v
.require_declaration
("class_{c_name}")
865 v
.add
("{res}->class = &class_{c_name};")
866 self.generate_init_attr
(v
, res
, mtype
)
867 v
.add
("return {res};")
872 # Add a dynamic test to ensure that the type referenced by `t` is a live type
873 fun hardening_live_type
(v
: VISITOR, t
: String)
875 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
876 v
.add
("if({t} == NULL) \{")
877 v
.add_abort
("type null")
879 v
.add
("if({t}->table_size == 0) \{")
880 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", {t}->name);")
881 v
.add_abort
("type dead")
885 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
889 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
890 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
891 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
892 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
894 redef fun display_stats
897 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
900 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
903 var tc
= self.modelbuilder
.toolcontext
904 tc
.info
("# implementation of method invocation",2)
905 var nb_invok_total
= modelbuilder
.nb_invok_by_tables
+ modelbuilder
.nb_invok_by_direct
+ modelbuilder
.nb_invok_by_inline
906 tc
.info
("total number of invocations: {nb_invok_total}",2)
907 tc
.info
("invocations by VFT send: {modelbuilder.nb_invok_by_tables} ({div(modelbuilder.nb_invok_by_tables,nb_invok_total)}%)",2)
908 tc
.info
("invocations by direct call: {modelbuilder.nb_invok_by_direct} ({div(modelbuilder.nb_invok_by_direct,nb_invok_total)}%)",2)
909 tc
.info
("invocations by inlining: {modelbuilder.nb_invok_by_inline} ({div(modelbuilder.nb_invok_by_inline,nb_invok_total)}%)",2)
914 print
"# size of subtyping tables"
915 print
"\ttotal \tholes"
918 for t
, table
in type_tables
do
919 total
+= table
.length
920 for e
in table
do if e
== null then holes
+= 1
922 print
"\t{total}\t{holes}"
924 print
"# size of resolution tables"
925 print
"\ttotal \tholes"
928 for t
, table
in resolution_tables
do
929 total
+= table
.length
930 for e
in table
do if e
== null then holes
+= 1
932 print
"\t{total}\t{holes}"
934 print
"# size of methods tables"
935 print
"\ttotal \tholes"
938 for t
, table
in method_tables
do
939 total
+= table
.length
940 for e
in table
do if e
== null then holes
+= 1
942 print
"\t{total}\t{holes}"
944 print
"# size of attributes tables"
945 print
"\ttotal \tholes"
948 for t
, table
in attr_tables
do
949 total
+= table
.length
950 for e
in table
do if e
== null then holes
+= 1
952 print
"\t{total}\t{holes}"
955 protected var isset_checks_count
= 0
956 protected var attr_read_count
= 0
958 fun display_isset_checks
do
959 print
"# total number of compiled attribute reads"
960 print
"\t{attr_read_count}"
961 print
"# total number of compiled isset-checks"
962 print
"\t{isset_checks_count}"
965 redef fun compile_nitni_structs
967 self.header
.add_decl
("struct nitni_instance \{struct instance *value;\};")
970 redef fun finalize_ffi_for_module
(mmodule
)
972 var old_module
= self.mainmodule
973 self.mainmodule
= mmodule
975 self.mainmodule
= old_module
979 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
980 class SeparateCompilerVisitor
981 super AbstractCompilerVisitor
983 redef type COMPILER: SeparateCompiler
985 redef fun adapt_signature
(m
, args
)
987 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
988 var recv
= args
.first
989 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
990 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
992 for i
in [0..msignature
.arity
[ do
993 var t
= msignature
.mparameters
[i
].mtype
994 if i
== msignature
.vararg_rank
then
997 args
[i
+1] = self.autobox
(args
[i
+1], t
)
1001 redef fun autobox
(value
, mtype
)
1003 if value
.mtype
== mtype
then
1005 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
1007 else if value
.mtype
.ctype
== "val*" then
1008 return self.new_expr
("((struct instance_{mtype.c_instance_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
1009 else if mtype
.ctype
== "val*" then
1010 var valtype
= value
.mtype
.as(MClassType)
1011 var res
= self.new_var
(mtype
)
1012 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
1013 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
1014 self.add
("printf(\"Dead code executed
!\\n\
"); show_backtrace(1);")
1017 self.require_declaration
("BOX_{valtype.c_name}")
1018 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
1020 else if value
.mtype
.ctype
== "void*" and mtype
.ctype
== "void*" then
1023 # Bad things will appen!
1024 var res
= self.new_var
(mtype
)
1025 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
1026 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); show_backtrace(1);")
1031 # Return a C expression returning the runtime type structure of the value
1032 # The point of the method is to works also with primitives types.
1033 fun type_info
(value
: RuntimeVariable): String
1035 if value
.mtype
.ctype
== "val*" then
1036 return "{value}->type"
1038 compiler
.undead_types
.add
(value
.mtype
)
1039 self.require_declaration
("type_{value.mtype.c_name}")
1040 return "(&type_{value.mtype.c_name})"
1044 redef fun compile_callsite
(callsite
, args
)
1046 var rta
= compiler
.runtime_type_analysis
1047 var recv
= args
.first
.mtype
1048 if compiler
.modelbuilder
.toolcontext
.opt_direct_call_monomorph
.value
and rta
!= null then
1049 var tgs
= rta
.live_targets
(callsite
)
1050 if tgs
.length
== 1 then
1052 var mmethod
= callsite
.mproperty
1053 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), args
)
1054 var res0
= before_send
(mmethod
, args
)
1055 var res
= call
(tgs
.first
, tgs
.first
.mclassdef
.bound_mtype
, args
)
1056 if res0
!= null then
1058 self.assign
(res0
, res
)
1061 add
("\}") # close the before_send
1067 redef fun send
(mmethod
, arguments
)
1069 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
1071 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1072 # In order to shortcut the primitive, we need to find the most specific method
1073 # Howverr, because of performance (no flattening), we always work on the realmainmodule
1074 var m
= self.compiler
.mainmodule
1075 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1076 var res
= self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
1077 self.compiler
.mainmodule
= m
1081 return table_send
(mmethod
, arguments
, mmethod
.const_color
)
1084 # Handel common special cases before doing the effective method invocation
1085 # This methods handle the `==` and `!=` methods and the case of the null receiver.
1086 # Note: a { is open in the generated C, that enclose and protect the effective method invocation.
1087 # Client must not forget to close the } after them.
1089 # The value returned is the result of the common special cases.
1090 # If not null, client must compine it with the result of their own effective method invocation.
1092 # If `before_send` can shortcut the whole message sending, a dummy `if(0){`
1093 # is generated to cancel the effective method invocation that will follow
1094 # TODO: find a better approach
1095 private fun before_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1097 var res
: nullable RuntimeVariable = null
1098 var recv
= arguments
.first
1099 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
1100 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
1102 self.add
("if ({recv} == NULL) \{")
1103 if mmethod
.name
== "==" then
1104 res
= self.new_var
(bool_type
)
1105 var arg
= arguments
[1]
1106 if arg
.mcasttype
isa MNullableType then
1107 self.add
("{res} = ({arg} == NULL);")
1108 else if arg
.mcasttype
isa MNullType then
1109 self.add
("{res} = 1; /* is null */")
1111 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
1113 else if mmethod
.name
== "!=" then
1114 res
= self.new_var
(bool_type
)
1115 var arg
= arguments
[1]
1116 if arg
.mcasttype
isa MNullableType then
1117 self.add
("{res} = ({arg} != NULL);")
1118 else if arg
.mcasttype
isa MNullType then
1119 self.add
("{res} = 0; /* is null */")
1121 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
1124 self.add_abort
("Receiver is null")
1126 self.add
("\} else \{")
1130 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
1131 if res
== null then res
= self.new_var
(bool_type
)
1132 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
1133 var arg
= arguments
[1]
1134 if arg
.mcasttype
isa MNullType then
1135 if mmethod
.name
== "==" then
1136 self.add
("{res} = 0; /* arg is null but recv is not */")
1138 self.add
("{res} = 1; /* arg is null and recv is not */")
1140 self.add
("\}") # closes the null case
1141 self.add
("if (0) \{") # what follow is useless, CC will drop it
1147 private fun table_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable], const_color
: String): nullable RuntimeVariable
1149 compiler
.modelbuilder
.nb_invok_by_tables
+= 1
1150 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_tables++;")
1152 assert arguments
.length
== mmethod
.intro
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethod}. {arguments.length} arguments given.")
1153 var recv
= arguments
.first
1155 var res0
= before_send
(mmethod
, arguments
)
1157 var res
: nullable RuntimeVariable
1158 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
1159 var ret
= msignature
.return_mtype
1160 if mmethod
.is_new
then
1161 ret
= arguments
.first
.mtype
1162 res
= self.new_var
(ret
)
1163 else if ret
== null then
1166 res
= self.new_var
(ret
)
1169 var s
= new FlatBuffer
1170 var ss
= new FlatBuffer
1174 for i
in [0..msignature
.arity
[ do
1175 var a
= arguments
[i
+1]
1176 var t
= msignature
.mparameters
[i
].mtype
1177 if i
== msignature
.vararg_rank
then
1178 t
= arguments
[i
+1].mcasttype
1180 s
.append
(", {t.ctype}")
1181 a
= self.autobox
(a
, t
)
1187 if ret
== null then r
= "void" else r
= ret
.ctype
1188 self.require_declaration
(const_color
)
1189 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1192 self.add
("{res} = {call};")
1197 if res0
!= null then
1203 self.add
("\}") # closes the null case
1208 redef fun call
(mmethoddef
, recvtype
, arguments
)
1210 assert arguments
.length
== mmethoddef
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
1212 var res
: nullable RuntimeVariable
1213 var ret
= mmethoddef
.msignature
.return_mtype
1214 if mmethoddef
.mproperty
.is_new
then
1215 ret
= arguments
.first
.mtype
1216 res
= self.new_var
(ret
)
1217 else if ret
== null then
1220 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1221 res
= self.new_var
(ret
)
1224 if (mmethoddef
.is_intern
and not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
) or
1225 (compiler
.modelbuilder
.toolcontext
.opt_inline_some_methods
.value
and mmethoddef
.can_inline
(self)) then
1226 compiler
.modelbuilder
.nb_invok_by_inline
+= 1
1227 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_inline++;")
1228 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1229 frame
.returnlabel
= self.get_name
("RET_LABEL")
1230 frame
.returnvar
= res
1231 var old_frame
= self.frame
1233 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) on {arguments.first.inspect} */")
1234 mmethoddef
.compile_inside_to_c
(self, arguments
)
1235 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1237 self.frame
= old_frame
1240 compiler
.modelbuilder
.nb_invok_by_direct
+= 1
1241 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_direct++;")
1244 self.adapt_signature
(mmethoddef
, arguments
)
1246 self.require_declaration
(mmethoddef
.c_name
)
1248 self.add
("{mmethoddef.c_name}({arguments.join(", ")}); /* Direct call {mmethoddef} on {arguments.first.inspect}*/")
1251 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1257 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1259 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1260 # In order to shortcut the primitive, we need to find the most specific method
1261 # However, because of performance (no flattening), we always work on the realmainmodule
1262 var main
= self.compiler
.mainmodule
1263 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1264 var res
= self.monomorphic_super_send
(m
, recvtype
, arguments
)
1265 self.compiler
.mainmodule
= main
1268 return table_send
(m
.mproperty
, arguments
, m
.const_color
)
1271 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1273 # A vararg must be stored into an new array
1274 # The trick is that the dymaic type of the array may depends on the receiver
1275 # of the method (ie recv) if the static type is unresolved
1276 # This is more complex than usual because the unresolved type must not be resolved
1277 # with the current receiver (ie self).
1278 # Therefore to isolate the resolution from self, a local Frame is created.
1279 # One can see this implementation as an inlined method of the receiver whose only
1280 # job is to allocate the array
1281 var old_frame
= self.frame
1282 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1284 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1285 var res
= self.array_instance
(varargs
, elttype
)
1286 self.frame
= old_frame
1290 redef fun isset_attribute
(a
, recv
)
1292 self.check_recv_notnull
(recv
)
1293 var res
= self.new_var
(bool_type
)
1295 # What is the declared type of the attribute?
1296 var mtype
= a
.intro
.static_mtype
.as(not null)
1297 var intromclassdef
= a
.intro
.mclassdef
1298 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1300 if mtype
isa MNullableType then
1301 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1305 self.require_declaration
(a
.const_color
)
1306 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1307 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1310 if mtype
.ctype
== "val*" then
1311 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1313 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1319 redef fun read_attribute
(a
, recv
)
1321 self.check_recv_notnull
(recv
)
1323 # What is the declared type of the attribute?
1324 var ret
= a
.intro
.static_mtype
.as(not null)
1325 var intromclassdef
= a
.intro
.mclassdef
1326 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1328 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1329 self.compiler
.attr_read_count
+= 1
1330 self.add
("count_attr_reads++;")
1333 self.require_declaration
(a
.const_color
)
1334 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1335 # Get the attribute or a box (ie. always a val*)
1336 var cret
= self.object_type
.as_nullable
1337 var res
= self.new_var
(cret
)
1340 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1342 # Check for Uninitialized attribute
1343 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1344 self.add
("if (unlikely({res} == NULL)) \{")
1345 self.add_abort
("Uninitialized attribute {a.name}")
1348 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1349 self.compiler
.isset_checks_count
+= 1
1350 self.add
("count_isset_checks++;")
1354 # Return the attribute or its unboxed version
1355 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1356 return self.autobox
(res
, ret
)
1358 var res
= self.new_var
(ret
)
1359 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1361 # Check for Uninitialized attribute
1362 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1363 self.add
("if (unlikely({res} == NULL)) \{")
1364 self.add_abort
("Uninitialized attribute {a.name}")
1366 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1367 self.compiler
.isset_checks_count
+= 1
1368 self.add
("count_isset_checks++;")
1376 redef fun write_attribute
(a
, recv
, value
)
1378 self.check_recv_notnull
(recv
)
1380 # What is the declared type of the attribute?
1381 var mtype
= a
.intro
.static_mtype
.as(not null)
1382 var intromclassdef
= a
.intro
.mclassdef
1383 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1385 # Adapt the value to the declared type
1386 value
= self.autobox
(value
, mtype
)
1388 self.require_declaration
(a
.const_color
)
1389 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1390 var attr
= "{recv}->attrs[{a.const_color}]"
1391 if mtype
.ctype
!= "val*" then
1392 assert mtype
isa MClassType
1393 # The attribute is primitive, thus we store it in a box
1394 # The trick is to create the box the first time then resuse the box
1395 self.add
("if ({attr} != NULL) \{")
1396 self.add
("((struct instance_{mtype.c_instance_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1397 self.add
("\} else \{")
1398 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1399 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1402 # The attribute is not primitive, thus store it direclty
1403 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1406 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1410 # Check that mtype is a live open type
1411 fun hardening_live_open_type
(mtype
: MType)
1413 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1414 self.require_declaration
(mtype
.const_color
)
1415 var col
= mtype
.const_color
1416 self.add
("if({col} == -1) \{")
1417 self.add
("fprintf(stderr, \"Resolution of a dead open
type: %s\\n\
", \"{mtype.to_s.escape_to_c}\
");")
1418 self.add_abort
("open type dead")
1422 # Check that mtype it a pointer to a live cast type
1423 fun hardening_cast_type
(t
: String)
1425 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1426 add
("if({t} == NULL) \{")
1427 add_abort
("cast type null")
1429 add
("if({t}->id == -1 || {t}->color == -1) \{")
1430 add
("fprintf(stderr, \"Try to cast on a dead cast
type: %s\\n\
", {t}->name);")
1431 add_abort
("cast type dead")
1435 redef fun init_instance
(mtype
)
1437 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1438 var compiler
= self.compiler
1439 if mtype
isa MGenericType and mtype
.need_anchor
then
1440 hardening_live_open_type
(mtype
)
1441 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1442 var recv
= self.frame
.arguments
.first
1443 var recv_type_info
= self.type_info
(recv
)
1444 self.require_declaration
(mtype
.const_color
)
1445 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1447 compiler
.undead_types
.add
(mtype
)
1448 self.require_declaration
("type_{mtype.c_name}")
1449 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1452 redef fun type_test
(value
, mtype
, tag
)
1454 self.add
("/* {value.inspect} isa {mtype} */")
1455 var compiler
= self.compiler
1457 var recv
= self.frame
.arguments
.first
1458 var recv_type_info
= self.type_info
(recv
)
1460 var res
= self.new_var
(bool_type
)
1462 var cltype
= self.get_name
("cltype")
1463 self.add_decl
("int {cltype};")
1464 var idtype
= self.get_name
("idtype")
1465 self.add_decl
("int {idtype};")
1467 var maybe_null
= self.maybe_null
(value
)
1468 var accept_null
= "0"
1470 if ntype
isa MNullableType then
1475 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1476 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1477 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1478 self.compiler
.count_type_test_skipped
[tag
] += 1
1479 self.add
("count_type_test_skipped_{tag}++;")
1484 if ntype
.need_anchor
then
1485 var type_struct
= self.get_name
("type_struct")
1486 self.add_decl
("const struct type* {type_struct};")
1488 # Either with resolution_table with a direct resolution
1489 hardening_live_open_type
(mtype
)
1490 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1491 self.require_declaration
(mtype
.const_color
)
1492 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.const_color}];")
1493 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1494 self.compiler
.count_type_test_unresolved
[tag
] += 1
1495 self.add
("count_type_test_unresolved_{tag}++;")
1497 hardening_cast_type
(type_struct
)
1498 self.add
("{cltype} = {type_struct}->color;")
1499 self.add
("{idtype} = {type_struct}->id;")
1500 if maybe_null
and accept_null
== "0" then
1501 var is_nullable
= self.get_name
("is_nullable")
1502 self.add_decl
("short int {is_nullable};")
1503 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1504 accept_null
= is_nullable
.to_s
1506 else if ntype
isa MClassType then
1507 compiler
.undead_types
.add
(mtype
)
1508 self.require_declaration
("type_{mtype.c_name}")
1509 hardening_cast_type
("(&type_{mtype.c_name})")
1510 self.add
("{cltype} = type_{mtype.c_name}.color;")
1511 self.add
("{idtype} = type_{mtype.c_name}.id;")
1512 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1513 self.compiler
.count_type_test_resolved
[tag
] += 1
1514 self.add
("count_type_test_resolved_{tag}++;")
1517 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); show_backtrace(1);")
1520 # check color is in table
1522 self.add
("if({value} == NULL) \{")
1523 self.add
("{res} = {accept_null};")
1524 self.add
("\} else \{")
1526 var value_type_info
= self.type_info
(value
)
1527 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1528 self.add
("{res} = 0;")
1529 self.add
("\} else \{")
1530 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1539 redef fun is_same_type_test
(value1
, value2
)
1541 var res
= self.new_var
(bool_type
)
1542 # Swap values to be symetric
1543 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1548 if value1
.mtype
.ctype
!= "val*" then
1549 if value2
.mtype
== value1
.mtype
then
1550 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1551 else if value2
.mtype
.ctype
!= "val*" then
1552 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1554 var mtype1
= value1
.mtype
.as(MClassType)
1555 self.require_declaration
("class_{mtype1.c_name}")
1556 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1559 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1564 redef fun class_name_string
(value
)
1566 var res
= self.get_name
("var_class_name")
1567 self.add_decl
("const char* {res};")
1568 if value
.mtype
.ctype
== "val*" then
1569 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1570 else if value
.mtype
isa MClassType and value
.mtype
.as(MClassType).mclass
.kind
== extern_kind
then
1571 self.add
"{res} = \"{value.mtype.as(MClassType).mclass}\
";"
1573 self.require_declaration
("type_{value.mtype.c_name}")
1574 self.add
"{res} = type_{value.mtype.c_name}.name;"
1579 redef fun equal_test
(value1
, value2
)
1581 var res
= self.new_var
(bool_type
)
1582 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1587 if value1
.mtype
.ctype
!= "val*" then
1588 if value2
.mtype
== value1
.mtype
then
1589 self.add
("{res} = {value1} == {value2};")
1590 else if value2
.mtype
.ctype
!= "val*" then
1591 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1593 var mtype1
= value1
.mtype
.as(MClassType)
1594 self.require_declaration
("class_{mtype1.c_name}")
1595 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1596 self.add
("if ({res}) \{")
1597 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1602 var maybe_null
= true
1603 var test
= new Array[String]
1604 var t1
= value1
.mcasttype
1605 if t1
isa MNullableType then
1606 test
.add
("{value1} != NULL")
1611 var t2
= value2
.mcasttype
1612 if t2
isa MNullableType then
1613 test
.add
("{value2} != NULL")
1619 var incompatible
= false
1621 if t1
.ctype
!= "val*" then
1624 # No need to compare class
1625 else if t2
.ctype
!= "val*" then
1627 else if can_be_primitive
(value2
) then
1628 test
.add
("{value1}->class == {value2}->class")
1632 else if t2
.ctype
!= "val*" then
1634 if can_be_primitive
(value1
) then
1635 test
.add
("{value1}->class == {value2}->class")
1643 if incompatible
then
1645 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1648 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1652 if primitive
!= null then
1653 test
.add
("((struct instance_{primitive.c_instance_name}*){value1})->value == ((struct instance_{primitive.c_instance_name}*){value2})->value")
1654 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1655 test
.add
("{value1}->class == {value2}->class")
1656 var s
= new Array[String]
1657 for t
, v
in self.compiler
.box_kinds
do
1658 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_instance_name}*){value1})->value == ((struct instance_{t.c_instance_name}*){value2})->value)"
1660 test
.add
("({s.join(" || ")})")
1662 self.add
("{res} = {value1} == {value2};")
1665 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1669 fun can_be_primitive
(value
: RuntimeVariable): Bool
1671 var t
= value
.mcasttype
1672 if t
isa MNullableType then t
= t
.mtype
1673 if not t
isa MClassType then return false
1674 var k
= t
.mclass
.kind
1675 return k
== interface_kind
or t
.ctype
!= "val*"
1678 fun maybe_null
(value
: RuntimeVariable): Bool
1680 var t
= value
.mcasttype
1681 return t
isa MNullableType or t
isa MNullType
1684 redef fun array_instance
(array
, elttype
)
1686 var nclass
= self.get_class
("NativeArray")
1687 var arrayclass
= self.get_class
("Array")
1688 var arraytype
= arrayclass
.get_mtype
([elttype
])
1689 var res
= self.init_instance
(arraytype
)
1690 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1691 var length
= self.int_instance
(array
.length
)
1692 var nat
= native_array_instance
(elttype
, length
)
1693 for i
in [0..array
.length
[ do
1694 var r
= self.autobox
(array
[i
], self.object_type
)
1695 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1697 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1702 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1704 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1705 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1706 assert mtype
isa MGenericType
1707 var compiler
= self.compiler
1708 if mtype
.need_anchor
then
1709 hardening_live_open_type
(mtype
)
1710 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1711 var recv
= self.frame
.arguments
.first
1712 var recv_type_info
= self.type_info
(recv
)
1713 self.require_declaration
(mtype
.const_color
)
1714 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1716 compiler
.undead_types
.add
(mtype
)
1717 self.require_declaration
("type_{mtype.c_name}")
1718 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1721 redef fun native_array_def
(pname
, ret_type
, arguments
)
1723 var elttype
= arguments
.first
.mtype
1724 var nclass
= self.get_class
("NativeArray")
1725 var recv
= "((struct instance_{nclass.c_instance_name}*){arguments[0]})->values"
1726 if pname
== "[]" then
1727 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1729 else if pname
== "[]=" then
1730 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1732 else if pname
== "length" then
1733 self.ret
(self.new_expr
("((struct instance_{nclass.c_instance_name}*){arguments[0]})->length", ret_type
.as(not null)))
1735 else if pname
== "copy_to" then
1736 var recv1
= "((struct instance_{nclass.c_instance_name}*){arguments[1]})->values"
1737 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1742 redef fun calloc_array
(ret_type
, arguments
)
1744 var mclass
= self.get_class
("ArrayCapable")
1745 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1746 var res
= self.native_array_instance
(ft
, arguments
[1])
1750 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1751 assert mtype
.need_anchor
1752 var compiler
= self.compiler
1753 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1754 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1756 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1760 redef class MMethodDef
1761 fun separate_runtime_function
: AbstractRuntimeFunction
1763 var res
= self.separate_runtime_function_cache
1765 res
= new SeparateRuntimeFunction(self)
1766 self.separate_runtime_function_cache
= res
1770 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1772 fun virtual_runtime_function
: AbstractRuntimeFunction
1774 var res
= self.virtual_runtime_function_cache
1776 res
= new VirtualRuntimeFunction(self)
1777 self.virtual_runtime_function_cache
= res
1781 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1784 # The C function associated to a methoddef separately compiled
1785 class SeparateRuntimeFunction
1786 super AbstractRuntimeFunction
1788 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1790 redef fun to_s
do return self.mmethoddef
.to_s
1792 redef fun compile_to_c
(compiler
)
1794 var mmethoddef
= self.mmethoddef
1796 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1797 var v
= compiler
.new_visitor
1798 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1799 var arguments
= new Array[RuntimeVariable]
1800 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1803 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1805 var sig
= new FlatBuffer
1806 var comment
= new FlatBuffer
1807 var ret
= msignature
.return_mtype
1809 sig
.append
("{ret.ctype} ")
1810 else if mmethoddef
.mproperty
.is_new
then
1812 sig
.append
("{ret.ctype} ")
1816 sig
.append
(self.c_name
)
1817 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1818 comment
.append
("({selfvar}: {selfvar.mtype}")
1819 arguments
.add
(selfvar
)
1820 for i
in [0..msignature
.arity
[ do
1821 var mtype
= msignature
.mparameters
[i
].mtype
1822 if i
== msignature
.vararg_rank
then
1823 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1825 comment
.append
(", {mtype}")
1826 sig
.append
(", {mtype.ctype} p{i}")
1827 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1828 arguments
.add
(argvar
)
1833 comment
.append
(": {ret}")
1835 compiler
.provide_declaration
(self.c_name
, "{sig};")
1837 v
.add_decl
("/* method {self} for {comment} */")
1838 v
.add_decl
("{sig} \{")
1840 frame
.returnvar
= v
.new_var
(ret
)
1842 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1844 if recv
!= arguments
.first
.mtype
then
1845 #print "{self} {recv} {arguments.first}"
1847 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1849 v
.add
("{frame.returnlabel.as(not null)}:;")
1851 v
.add
("return {frame.returnvar.as(not null)};")
1854 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})"
1858 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1859 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1860 class VirtualRuntimeFunction
1861 super AbstractRuntimeFunction
1863 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1865 redef fun to_s
do return self.mmethoddef
.to_s
1867 redef fun compile_to_c
(compiler
)
1869 var mmethoddef
= self.mmethoddef
1871 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1872 var v
= compiler
.new_visitor
1873 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1874 var arguments
= new Array[RuntimeVariable]
1875 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1878 var sig
= new FlatBuffer
1879 var comment
= new FlatBuffer
1881 # Because the function is virtual, the signature must match the one of the original class
1882 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1883 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1884 var ret
= msignature
.return_mtype
1886 sig
.append
("{ret.ctype} ")
1887 else if mmethoddef
.mproperty
.is_new
then
1889 sig
.append
("{ret.ctype} ")
1893 sig
.append
(self.c_name
)
1894 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1895 comment
.append
("({selfvar}: {selfvar.mtype}")
1896 arguments
.add
(selfvar
)
1897 for i
in [0..msignature
.arity
[ do
1898 var mtype
= msignature
.mparameters
[i
].mtype
1899 if i
== msignature
.vararg_rank
then
1900 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1902 comment
.append
(", {mtype}")
1903 sig
.append
(", {mtype.ctype} p{i}")
1904 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1905 arguments
.add
(argvar
)
1910 comment
.append
(": {ret}")
1912 compiler
.provide_declaration
(self.c_name
, "{sig};")
1914 v
.add_decl
("/* method {self} for {comment} */")
1915 v
.add_decl
("{sig} \{")
1917 frame
.returnvar
= v
.new_var
(ret
)
1919 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1921 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1923 assert subret
!= null
1924 v
.assign
(frame
.returnvar
.as(not null), subret
)
1927 v
.add
("{frame.returnlabel.as(not null)}:;")
1929 v
.add
("return {frame.returnvar.as(not null)};")
1932 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})"
1936 redef fun call
(v
, arguments
) do abort
1940 fun const_color
: String do return "COLOR_{c_name}"
1942 # C name of the instance type to use
1943 fun c_instance_name
: String do return c_name
1946 redef class MClassType
1947 redef fun c_instance_name
do return mclass
.c_instance_name
1951 # Extern classes use the C instance of kernel::Pointer
1952 fun c_instance_name
: String
1954 if kind
== extern_kind
then
1955 return "kernel__Pointer"
1960 redef class MProperty
1961 fun const_color
: String do return "COLOR_{c_name}"
1964 redef class MPropDef
1965 fun const_color
: String do return "COLOR_{c_name}"