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")
44 # --use-naive-coloring
45 var opt_bm_typing
: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
46 # --use-mod-perfect-hashing
47 var opt_phmod_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
48 # --use-and-perfect-hashing
49 var opt_phand_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
51 var opt_tables_metrics
: OptionBool = new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
56 self.option_context
.add_option
(self.opt_separate
)
57 self.option_context
.add_option
(self.opt_no_inline_intern
)
58 self.option_context
.add_option
(self.opt_no_union_attribute
)
59 self.option_context
.add_option
(self.opt_no_shortcut_equate
)
60 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
)
61 self.option_context
.add_option
(self.opt_no_colo_dead_methods
)
62 self.option_context
.add_option
(self.opt_bm_typing
)
63 self.option_context
.add_option
(self.opt_phmod_typing
)
64 self.option_context
.add_option
(self.opt_phand_typing
)
65 self.option_context
.add_option
(self.opt_tables_metrics
)
68 redef fun process_options
(args
)
73 if tc
.opt_semi_global
.value
then
74 tc
.opt_inline_coloring_numbers
.value
= true
75 tc
.opt_inline_some_methods
.value
= true
76 tc
.opt_direct_call_monomorph
.value
= true
77 tc
.opt_skip_dead_methods
.value
= true
82 redef class ModelBuilder
83 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: nullable RapidTypeAnalysis)
86 self.toolcontext
.info
("*** GENERATING C ***", 1)
88 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
89 compiler
.compile_header
91 # compile class structures
92 self.toolcontext
.info
("Property coloring", 2)
93 compiler
.new_file
("{mainmodule.name}.classes")
94 compiler
.do_property_coloring
95 for m
in mainmodule
.in_importation
.greaters
do
96 for mclass
in m
.intro_mclasses
do
97 if mclass
.kind
== abstract_kind
or mclass
.kind
== interface_kind
then continue
98 compiler
.compile_class_to_c
(mclass
)
102 # The main function of the C
103 compiler
.new_file
("{mainmodule.name}.main")
104 compiler
.compile_main_function
107 for m
in mainmodule
.in_importation
.greaters
do
108 self.toolcontext
.info
("Generate C for module {m}", 2)
109 compiler
.new_file
("{m.name}.sep")
110 compiler
.compile_module_to_c
(m
)
113 # compile live & cast type structures
114 self.toolcontext
.info
("Type coloring", 2)
115 compiler
.new_file
("{mainmodule.name}.types")
116 var mtypes
= compiler
.do_type_coloring
118 compiler
.compile_type_to_c
(t
)
120 # compile remaining types structures (useless but needed for the symbol resolution at link-time)
121 for t
in compiler
.undead_types
do
122 if mtypes
.has
(t
) then continue
123 compiler
.compile_type_to_c
(t
)
126 compiler
.display_stats
129 self.toolcontext
.info
("*** END GENERATING C: {time1-time0} ***", 2)
130 write_and_make
(compiler
)
133 # Count number of invocations by VFT
134 private var nb_invok_by_tables
= 0
135 # Count number of invocations by direct call
136 private var nb_invok_by_direct
= 0
137 # Count number of invocations by inlining
138 private var nb_invok_by_inline
= 0
141 # Singleton that store the knowledge about the separate compilation process
142 class SeparateCompiler
143 super AbstractCompiler
145 redef type VISITOR: SeparateCompilerVisitor
147 # The result of the RTA (used to know live types and methods)
148 var runtime_type_analysis
: nullable RapidTypeAnalysis
150 private var undead_types
: Set[MType] = new HashSet[MType]
151 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
153 private var type_layout
: nullable Layout[MType]
154 private var resolution_layout
: nullable Layout[MType]
155 protected var method_layout
: nullable Layout[PropertyLayoutElement]
156 protected var attr_layout
: nullable Layout[MAttribute]
158 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: nullable RapidTypeAnalysis) do
159 super(mainmodule
, mmbuilder
)
160 var file
= new_file
("nit.common")
161 self.header
= new CodeWriter(file
)
162 self.runtime_type_analysis
= runtime_type_analysis
163 self.compile_box_kinds
166 redef fun compile_header_structs
do
167 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
168 self.compile_header_attribute_structs
169 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
171 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
172 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. */")
173 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
175 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
176 self.header
.add_decl
("struct types \{ int mask; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
178 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
181 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
182 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
183 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
184 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
187 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
190 fun compile_header_attribute_structs
192 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
193 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
195 self.header
.add_decl
("typedef union \{")
196 self.header
.add_decl
("void* val;")
197 for c
, v
in self.box_kinds
do
198 var t
= c
.mclass_type
199 self.header
.add_decl
("{t.ctype} {t.ctypename};")
201 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
205 fun compile_box_kinds
207 # Collect all bas box class
208 # FIXME: this is not completely fine with a separate compilation scheme
209 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
210 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
211 if classes
== null then continue
212 assert classes
.length
== 1 else print classes
.join
(", ")
213 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
217 var box_kinds
= new HashMap[MClass, Int]
219 fun box_kind_of
(mclass
: MClass): Int
221 if mclass
.mclass_type
.ctype
== "val*" then
223 else if mclass
.kind
== extern_kind
then
224 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
226 return self.box_kinds
[mclass
]
231 fun compile_color_consts
(colors
: Map[Object, Int]) do
233 for m
, c
in colors
do
234 compile_color_const
(v
, m
, c
)
238 fun compile_color_const
(v
: SeparateCompilerVisitor, m
: Object, color
: Int) do
239 if color_consts_done
.has
(m
) then return
240 if m
isa MProperty then
241 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
242 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
244 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
245 v
.add
("const int {m.const_color} = {color};")
247 else if m
isa MPropDef then
248 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
249 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
251 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
252 v
.add
("const int {m.const_color} = {color};")
254 else if m
isa MType then
255 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
256 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
258 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
259 v
.add
("const int {m.const_color} = {color};")
262 color_consts_done
.add
(m
)
265 private var color_consts_done
= new HashSet[Object]
267 # colorize classe properties
268 fun do_property_coloring
do
269 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
271 var rta
= runtime_type_analysis
274 var method_layout_builder
: PropertyLayoutBuilder[PropertyLayoutElement]
275 var attribute_layout_builder
: PropertyLayoutBuilder[MAttribute]
276 #FIXME PH and BM layouts too slow for large programs
277 #if modelbuilder.toolcontext.opt_bm_typing.value then
278 # method_layout_builder = new MMethodBMizer(self.mainmodule)
279 # attribute_layout_builder = new MAttributeBMizer(self.mainmodule)
280 #else if modelbuilder.toolcontext.opt_phmod_typing.value then
281 # method_layout_builder = new MMethodHasher(new PHModOperator, self.mainmodule)
282 # attribute_layout_builder = new MAttributeHasher(new PHModOperator, self.mainmodule)
283 #else if modelbuilder.toolcontext.opt_phand_typing.value then
284 # method_layout_builder = new MMethodHasher(new PHAndOperator, self.mainmodule)
285 # attribute_layout_builder = new MAttributeHasher(new PHAndOperator, self.mainmodule)
288 var class_layout_builder
= new MClassColorer(self.mainmodule
)
289 class_layout_builder
.build_layout
(mclasses
)
290 method_layout_builder
= new MPropertyColorer[PropertyLayoutElement](self.mainmodule
, class_layout_builder
)
291 attribute_layout_builder
= new MPropertyColorer[MAttribute](self.mainmodule
, class_layout_builder
)
294 # The dead methods, still need to provide a dead color symbol
295 var dead_methods
= new Array[MMethod]
297 # lookup properties to build layout with
298 var mmethods
= new HashMap[MClass, Set[PropertyLayoutElement]]
299 var mattributes
= new HashMap[MClass, Set[MAttribute]]
300 for mclass
in mclasses
do
301 mmethods
[mclass
] = new HashSet[PropertyLayoutElement]
302 mattributes
[mclass
] = new HashSet[MAttribute]
303 for mprop
in self.mainmodule
.properties
(mclass
) do
304 if mprop
isa MMethod then
305 if modelbuilder
.toolcontext
.opt_no_colo_dead_methods
.value
and rta
!= null and not rta
.live_methods
.has
(mprop
) then
306 dead_methods
.add
(mprop
)
309 mmethods
[mclass
].add
(mprop
)
310 else if mprop
isa MAttribute then
311 mattributes
[mclass
].add
(mprop
)
316 # Collect all super calls (dead or not)
317 var all_super_calls
= new HashSet[MMethodDef]
318 for mmodule
in self.mainmodule
.in_importation
.greaters
do
319 for mclassdef
in mmodule
.mclassdefs
do
320 for mpropdef
in mclassdef
.mpropdefs
do
321 if not mpropdef
isa MMethodDef then continue
322 if mpropdef
.has_supercall
then
323 all_super_calls
.add
(mpropdef
)
329 # lookup super calls and add it to the list of mmethods to build layout with
332 super_calls
= rta
.live_super_sends
334 super_calls
= all_super_calls
337 for mmethoddef
in super_calls
do
338 var mclass
= mmethoddef
.mclassdef
.mclass
339 mmethods
[mclass
].add
(mmethoddef
)
340 for descendant
in mclass
.in_hierarchy
(self.mainmodule
).smallers
do
341 mmethods
[descendant
].add
(mmethoddef
)
346 self.method_layout
= method_layout_builder
.build_layout
(mmethods
)
347 self.method_tables
= build_method_tables
(mclasses
, super_calls
)
348 self.compile_color_consts
(method_layout
.pos
)
350 # attribute null color to dead methods and supercalls
351 for mproperty
in dead_methods
do
352 compile_color_const
(new_visitor
, mproperty
, -1)
354 for mpropdef
in all_super_calls
do
355 if super_calls
.has
(mpropdef
) then continue
356 compile_color_const
(new_visitor
, mpropdef
, -1)
359 # attributes coloration
360 self.attr_layout
= attribute_layout_builder
.build_layout
(mattributes
)
361 self.attr_tables
= build_attr_tables
(mclasses
)
362 self.compile_color_consts
(attr_layout
.pos
)
365 fun build_method_tables
(mclasses
: Set[MClass], super_calls
: Set[MMethodDef]): Map[MClass, Array[nullable MPropDef]] do
366 var layout
= self.method_layout
367 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
368 for mclass
in mclasses
do
369 var table
= new Array[nullable MPropDef]
370 var supercalls
= new List[MMethodDef]
372 # first, fill table from parents by reverse linearization order
373 var parents
= new Array[MClass]
374 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
375 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
376 self.mainmodule
.linearize_mclasses
(parents
)
379 for parent
in parents
do
380 if parent
== mclass
then continue
381 for mproperty
in self.mainmodule
.properties
(parent
) do
382 if not mproperty
isa MMethod then continue
383 if not layout
.pos
.has_key
(mproperty
) then continue
384 var color
= layout
.pos
[mproperty
]
385 if table
.length
<= color
then
386 for i
in [table
.length
.. color
[ do
390 for mpropdef
in mproperty
.mpropdefs
do
391 if mpropdef
.mclassdef
.mclass
== parent
then
392 table
[color
] = mpropdef
397 # lookup for super calls in super classes
398 for mmethoddef
in super_calls
do
399 for mclassdef
in parent
.mclassdefs
do
400 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
401 supercalls
.add
(mmethoddef
)
407 # then override with local properties
408 for mproperty
in self.mainmodule
.properties
(mclass
) do
409 if not mproperty
isa MMethod then continue
410 if not layout
.pos
.has_key
(mproperty
) then continue
411 var color
= layout
.pos
[mproperty
]
412 if table
.length
<= color
then
413 for i
in [table
.length
.. color
[ do
417 for mpropdef
in mproperty
.mpropdefs
do
418 if mpropdef
.mclassdef
.mclass
== mclass
then
419 table
[color
] = mpropdef
424 # lookup for super calls in local class
425 for mmethoddef
in super_calls
do
426 for mclassdef
in mclass
.mclassdefs
do
427 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
428 supercalls
.add
(mmethoddef
)
432 # insert super calls in table according to receiver
433 for supercall
in supercalls
do
434 var color
= layout
.pos
[supercall
]
435 if table
.length
<= color
then
436 for i
in [table
.length
.. color
[ do
440 var mmethoddef
= supercall
.lookup_next_definition
(self.mainmodule
, mclass
.intro
.bound_mtype
)
441 table
[color
] = mmethoddef
443 tables
[mclass
] = table
448 fun build_attr_tables
(mclasses
: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
449 var layout
= self.attr_layout
450 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
451 for mclass
in mclasses
do
452 var table
= new Array[nullable MPropDef]
453 # first, fill table from parents by reverse linearization order
454 var parents
= new Array[MClass]
455 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
456 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
457 self.mainmodule
.linearize_mclasses
(parents
)
459 for parent
in parents
do
460 if parent
== mclass
then continue
461 for mproperty
in self.mainmodule
.properties
(parent
) do
462 if not mproperty
isa MAttribute then continue
463 var color
= layout
.pos
[mproperty
]
464 if table
.length
<= color
then
465 for i
in [table
.length
.. color
[ do
469 for mpropdef
in mproperty
.mpropdefs
do
470 if mpropdef
.mclassdef
.mclass
== parent
then
471 table
[color
] = mpropdef
477 # then override with local properties
478 for mproperty
in self.mainmodule
.properties
(mclass
) do
479 if not mproperty
isa MAttribute then continue
480 var color
= layout
.pos
[mproperty
]
481 if table
.length
<= color
then
482 for i
in [table
.length
.. color
[ do
486 for mpropdef
in mproperty
.mpropdefs
do
487 if mpropdef
.mclassdef
.mclass
== mclass
then
488 table
[color
] = mpropdef
492 tables
[mclass
] = table
497 # colorize live types of the program
498 private fun do_type_coloring
: POSet[MType] do
499 var mtypes
= new HashSet[MType]
500 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
501 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
502 for c
in self.box_kinds
.keys
do
503 mtypes
.add
(c
.mclass_type
)
507 var layout_builder
: TypingLayoutBuilder[MType]
508 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
509 layout_builder
= new MTypeBMizer(self.mainmodule
)
510 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
511 layout_builder
= new MTypeHasher(new PHModOperator, self.mainmodule
)
512 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
513 layout_builder
= new MTypeHasher(new PHAndOperator, self.mainmodule
)
515 layout_builder
= new MTypeColorer(self.mainmodule
)
519 self.type_layout
= layout_builder
.build_layout
(mtypes
)
520 var poset
= layout_builder
.poset
.as(not null)
521 self.type_tables
= self.build_type_tables
(poset
)
523 # VT and FT are stored with other unresolved types in the big resolution_tables
524 self.compile_resolution_tables
(mtypes
)
530 fun build_type_tables
(mtypes
: POSet[MType]): Map[MType, Array[nullable MType]] do
531 var tables
= new HashMap[MType, Array[nullable MType]]
532 var layout
= self.type_layout
533 for mtype
in mtypes
do
534 var table
= new Array[nullable MType]
535 for sup
in mtypes
[mtype
].greaters
do
537 if layout
isa PHLayout[MType, MType] then
538 color
= layout
.hashes
[mtype
][sup
]
540 color
= layout
.pos
[sup
]
542 if table
.length
<= color
then
543 for i
in [table
.length
.. color
[ do
549 tables
[mtype
] = table
554 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
555 # resolution_tables is used to perform a type resolution at runtime in O(1)
557 # During the visit of the body of classes, live_unresolved_types are collected
559 # Collect all live_unresolved_types (visited in the body of classes)
561 # Determinate fo each livetype what are its possible requested anchored types
562 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
563 for mtype
in self.runtime_type_analysis
.live_types
do
564 var set
= new HashSet[MType]
565 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
566 if self.live_unresolved_types
.has_key
(cd
) then
567 set
.add_all
(self.live_unresolved_types
[cd
])
570 mtype2unresolved
[mtype
] = set
573 # Compute the table layout with the prefered method
574 var resolution_builder
: ResolutionLayoutBuilder
575 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
576 resolution_builder
= new ResolutionBMizer
577 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
578 resolution_builder
= new ResolutionHasher(new PHModOperator)
579 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
580 resolution_builder
= new ResolutionHasher(new PHAndOperator)
582 resolution_builder
= new ResolutionColorer
584 self.resolution_layout
= resolution_builder
.build_layout
(mtype2unresolved
)
585 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
587 # Compile a C constant for each collected unresolved type.
588 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
589 var all_unresolved
= new HashSet[MType]
590 for t
in self.live_unresolved_types
.values
do
591 all_unresolved
.add_all
(t
)
593 var all_unresolved_types_colors
= new HashMap[MType, Int]
594 for t
in all_unresolved
do
595 if self.resolution_layout
.pos
.has_key
(t
) then
596 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
598 all_unresolved_types_colors
[t
] = -1
601 self.compile_color_consts
(all_unresolved_types_colors
)
604 #for k, v in unresolved_types_tables.as(not null) do
605 # print "{k}: {v.join(", ")}"
610 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
611 var tables
= new HashMap[MClassType, Array[nullable MType]]
612 var layout
= self.resolution_layout
613 for mclasstype
, mtypes
in elements
do
614 var table
= new Array[nullable MType]
615 for mtype
in mtypes
do
617 if layout
isa PHLayout[MClassType, MType] then
618 color
= layout
.hashes
[mclasstype
][mtype
]
620 color
= layout
.pos
[mtype
]
622 if table
.length
<= color
then
623 for i
in [table
.length
.. color
[ do
629 tables
[mclasstype
] = table
634 # Separately compile all the method definitions of the module
635 fun compile_module_to_c
(mmodule
: MModule)
637 var old_module
= self.mainmodule
638 self.mainmodule
= mmodule
639 for cd
in mmodule
.mclassdefs
do
640 for pd
in cd
.mpropdefs
do
641 if not pd
isa MMethodDef then continue
642 var rta
= runtime_type_analysis
643 if modelbuilder
.toolcontext
.opt_skip_dead_methods
.value
and rta
!= null and not rta
.live_methoddefs
.has
(pd
) then continue
644 #print "compile {pd} @ {cd} @ {mmodule}"
645 var r
= pd
.separate_runtime_function
647 var r2
= pd
.virtual_runtime_function
648 r2
.compile_to_c
(self)
651 self.mainmodule
= old_module
654 # Globaly compile the type structure of a live type
655 fun compile_type_to_c
(mtype
: MType)
657 assert not mtype
.need_anchor
658 var layout
= self.type_layout
659 var is_live
= mtype
isa MClassType and runtime_type_analysis
.live_types
.has
(mtype
)
660 var is_cast_live
= runtime_type_analysis
.live_cast_types
.has
(mtype
)
661 var c_name
= mtype
.c_name
662 var v
= new SeparateCompilerVisitor(self)
663 v
.add_decl
("/* runtime type {mtype} */")
665 # extern const struct type_X
666 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
668 # const struct type_X
669 v
.add_decl
("const struct type type_{c_name} = \{")
671 # type id (for cast target)
673 v
.add_decl
("{layout.ids[mtype]},")
675 v
.add_decl
("-1, /*CAST DEAD*/")
679 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
681 # type color (for cast target)
683 if layout
isa PHLayout[MType, MType] then
684 v
.add_decl
("{layout.masks[mtype]},")
686 v
.add_decl
("{layout.pos[mtype]},")
689 v
.add_decl
("-1, /*CAST DEAD*/")
693 if mtype
isa MNullableType then
699 # resolution table (for receiver)
701 var mclass_type
= mtype
702 if mclass_type
isa MNullableType then mclass_type
= mclass_type
.mtype
703 assert mclass_type
isa MClassType
704 if resolution_tables
[mclass_type
].is_empty
then
705 v
.add_decl
("NULL, /*NO RESOLUTIONS*/")
707 compile_type_resolution_table
(mtype
)
708 v
.require_declaration
("resolution_table_{c_name}")
709 v
.add_decl
("&resolution_table_{c_name},")
712 v
.add_decl
("NULL, /*DEAD*/")
715 # cast table (for receiver)
717 v
.add_decl
("{self.type_tables[mtype].length},")
719 for stype
in self.type_tables
[mtype
] do
720 if stype
== null then
721 v
.add_decl
("-1, /* empty */")
723 v
.add_decl
("{layout.ids[stype]}, /* {stype} */")
728 v
.add_decl
("0, \{\}, /*DEAD TYPE*/")
733 fun compile_type_resolution_table
(mtype
: MType) do
735 var mclass_type
: MClassType
736 if mtype
isa MNullableType then
737 mclass_type
= mtype
.mtype
.as(MClassType)
739 mclass_type
= mtype
.as(MClassType)
742 var layout
= self.resolution_layout
744 # extern const struct resolution_table_X resolution_table_X
745 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
747 # const struct fts_table_X fts_table_X
749 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
750 if layout
isa PHLayout[MClassType, MType] then
751 v
.add_decl
("{layout.masks[mclass_type]},")
753 v
.add_decl
("0, /* dummy */")
756 for t
in self.resolution_tables
[mclass_type
] do
758 v
.add_decl
("NULL, /* empty */")
760 # The table stores the result of the type resolution
761 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
762 # the value stored is tv.
763 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
764 # FIXME: What typeids means here? How can a tv not be live?
765 if self.type_layout
.ids
.has_key
(tv
) then
766 v
.require_declaration
("type_{tv.c_name}")
767 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
769 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
777 # Globally compile the table of the class mclass
778 # In a link-time optimisation compiler, tables are globally computed
779 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
780 fun compile_class_to_c
(mclass
: MClass)
782 var mtype
= mclass
.intro
.bound_mtype
783 var c_name
= mclass
.c_name
784 var c_instance_name
= mclass
.c_instance_name
786 var vft
= self.method_tables
[mclass
]
787 var attrs
= self.attr_tables
[mclass
]
790 var rta
= runtime_type_analysis
791 var is_dead
= rta
!= null and not rta
.live_classes
.has
(mclass
) and mtype
.ctype
== "val*" and mclass
.name
!= "NativeArray"
793 v
.add_decl
("/* runtime class {c_name} */")
797 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
798 v
.add_decl
("const struct class class_{c_name} = \{")
799 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
801 for i
in [0 .. vft
.length
[ do
802 var mpropdef
= vft
[i
]
803 if mpropdef
== null then
804 v
.add_decl
("NULL, /* empty */")
806 assert mpropdef
isa MMethodDef
807 if rta
!= null and not rta
.live_methoddefs
.has
(mpropdef
) then
808 v
.add_decl
("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
811 var rf
= mpropdef
.virtual_runtime_function
812 v
.require_declaration
(rf
.c_name
)
813 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
820 if mtype
.ctype
!= "val*" then
821 if mtype
.mclass
.name
== "Pointer" or mtype
.mclass
.kind
!= extern_kind
then
822 #Build instance struct
823 self.header
.add_decl
("struct instance_{c_instance_name} \{")
824 self.header
.add_decl
("const struct type *type;")
825 self.header
.add_decl
("const struct class *class;")
826 self.header
.add_decl
("{mtype.ctype} value;")
827 self.header
.add_decl
("\};")
830 if not rta
.live_types
.has
(mtype
) then return
833 self.provide_declaration
("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
834 v
.add_decl
("/* allocate {mtype} */")
835 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
836 v
.add
("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
837 v
.require_declaration
("type_{c_name}")
838 v
.add
("res->type = &type_{c_name};")
839 v
.require_declaration
("class_{c_name}")
840 v
.add
("res->class = &class_{c_name};")
841 v
.add
("res->value = value;")
842 v
.add
("return (val*)res;")
845 else if mclass
.name
== "NativeArray" then
846 #Build instance struct
847 self.header
.add_decl
("struct instance_{c_instance_name} \{")
848 self.header
.add_decl
("const struct type *type;")
849 self.header
.add_decl
("const struct class *class;")
850 # NativeArrays are just a instance header followed by a length and an array of values
851 self.header
.add_decl
("int length;")
852 self.header
.add_decl
("val* values[0];")
853 self.header
.add_decl
("\};")
856 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
857 v
.add_decl
("/* allocate {mtype} */")
858 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
859 var res
= v
.get_name
("self")
860 v
.add_decl
("struct instance_{c_instance_name} *{res};")
861 var mtype_elt
= mtype
.arguments
.first
862 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_instance_name}) + length*sizeof({mtype_elt.ctype}));")
863 v
.add
("{res}->type = type;")
864 hardening_live_type
(v
, "type")
865 v
.require_declaration
("class_{c_name}")
866 v
.add
("{res}->class = &class_{c_name};")
867 v
.add
("{res}->length = length;")
868 v
.add
("return (val*){res};")
874 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
875 v
.add_decl
("/* allocate {mtype} */")
876 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
878 v
.add_abort
("{mclass} is DEAD")
880 var res
= v
.new_named_var
(mtype
, "self")
882 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
883 v
.add
("{res}->type = type;")
884 hardening_live_type
(v
, "type")
885 v
.require_declaration
("class_{c_name}")
886 v
.add
("{res}->class = &class_{c_name};")
887 self.generate_init_attr
(v
, res
, mtype
)
888 v
.add
("return {res};")
893 # Add a dynamic test to ensure that the type referenced by `t` is a live type
894 fun hardening_live_type
(v
: VISITOR, t
: String)
896 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
897 v
.add
("if({t} == NULL) \{")
898 v
.add_abort
("type null")
900 v
.add
("if({t}->table_size == 0) \{")
901 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", {t}->name);")
902 v
.add_abort
("type dead")
906 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
910 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
911 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
912 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
913 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
915 redef fun display_stats
918 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
921 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
924 var tc
= self.modelbuilder
.toolcontext
925 tc
.info
("# implementation of method invocation",2)
926 var nb_invok_total
= modelbuilder
.nb_invok_by_tables
+ modelbuilder
.nb_invok_by_direct
+ modelbuilder
.nb_invok_by_inline
927 tc
.info
("total number of invocations: {nb_invok_total}",2)
928 tc
.info
("invocations by VFT send: {modelbuilder.nb_invok_by_tables} ({div(modelbuilder.nb_invok_by_tables,nb_invok_total)}%)",2)
929 tc
.info
("invocations by direct call: {modelbuilder.nb_invok_by_direct} ({div(modelbuilder.nb_invok_by_direct,nb_invok_total)}%)",2)
930 tc
.info
("invocations by inlining: {modelbuilder.nb_invok_by_inline} ({div(modelbuilder.nb_invok_by_inline,nb_invok_total)}%)",2)
935 print
"# size of subtyping tables"
936 print
"\ttotal \tholes"
939 for t
, table
in type_tables
do
940 total
+= table
.length
941 for e
in table
do if e
== null then holes
+= 1
943 print
"\t{total}\t{holes}"
945 print
"# size of resolution tables"
946 print
"\ttotal \tholes"
949 for t
, table
in resolution_tables
do
950 total
+= table
.length
951 for e
in table
do if e
== null then holes
+= 1
953 print
"\t{total}\t{holes}"
955 print
"# size of methods tables"
956 print
"\ttotal \tholes"
959 for t
, table
in method_tables
do
960 total
+= table
.length
961 for e
in table
do if e
== null then holes
+= 1
963 print
"\t{total}\t{holes}"
965 print
"# size of attributes tables"
966 print
"\ttotal \tholes"
969 for t
, table
in attr_tables
do
970 total
+= table
.length
971 for e
in table
do if e
== null then holes
+= 1
973 print
"\t{total}\t{holes}"
976 protected var isset_checks_count
= 0
977 protected var attr_read_count
= 0
979 fun display_isset_checks
do
980 print
"# total number of compiled attribute reads"
981 print
"\t{attr_read_count}"
982 print
"# total number of compiled isset-checks"
983 print
"\t{isset_checks_count}"
986 redef fun compile_nitni_structs
988 self.header
.add_decl
("struct nitni_instance \{struct instance *value;\};")
991 redef fun finalize_ffi_for_module
(mmodule
)
993 var old_module
= self.mainmodule
994 self.mainmodule
= mmodule
996 self.mainmodule
= old_module
1000 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
1001 class SeparateCompilerVisitor
1002 super AbstractCompilerVisitor
1004 redef type COMPILER: SeparateCompiler
1006 redef fun adapt_signature
(m
, args
)
1008 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
1009 var recv
= args
.first
1010 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
1011 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
1013 for i
in [0..msignature
.arity
[ do
1014 var t
= msignature
.mparameters
[i
].mtype
1015 if i
== msignature
.vararg_rank
then
1018 args
[i
+1] = self.autobox
(args
[i
+1], t
)
1022 redef fun autobox
(value
, mtype
)
1024 if value
.mtype
== mtype
then
1026 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
1028 else if value
.mtype
.ctype
== "val*" then
1029 return self.new_expr
("((struct instance_{mtype.c_instance_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
1030 else if mtype
.ctype
== "val*" then
1031 var valtype
= value
.mtype
.as(MClassType)
1032 var res
= self.new_var
(mtype
)
1033 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
1034 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
1035 self.add
("printf(\"Dead code executed
!\\n\
"); show_backtrace(1);")
1038 self.require_declaration
("BOX_{valtype.c_name}")
1039 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
1041 else if value
.mtype
.ctype
== "void*" and mtype
.ctype
== "void*" then
1044 # Bad things will appen!
1045 var res
= self.new_var
(mtype
)
1046 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
1047 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); show_backtrace(1);")
1052 # Return a C expression returning the runtime type structure of the value
1053 # The point of the method is to works also with primitives types.
1054 fun type_info
(value
: RuntimeVariable): String
1056 if value
.mtype
.ctype
== "val*" then
1057 return "{value}->type"
1059 compiler
.undead_types
.add
(value
.mtype
)
1060 self.require_declaration
("type_{value.mtype.c_name}")
1061 return "(&type_{value.mtype.c_name})"
1065 redef fun compile_callsite
(callsite
, args
)
1067 var rta
= compiler
.runtime_type_analysis
1068 var recv
= args
.first
.mtype
1069 if compiler
.modelbuilder
.toolcontext
.opt_direct_call_monomorph
.value
and rta
!= null then
1070 var tgs
= rta
.live_targets
(callsite
)
1071 if tgs
.length
== 1 then
1073 var mmethod
= callsite
.mproperty
1074 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), args
)
1075 var res0
= before_send
(mmethod
, args
)
1076 var res
= call
(tgs
.first
, tgs
.first
.mclassdef
.bound_mtype
, args
)
1077 if res0
!= null then
1079 self.assign
(res0
, res
)
1082 add
("\}") # close the before_send
1088 redef fun send
(mmethod
, arguments
)
1090 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
1092 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1093 # In order to shortcut the primitive, we need to find the most specific method
1094 # Howverr, because of performance (no flattening), we always work on the realmainmodule
1095 var m
= self.compiler
.mainmodule
1096 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1097 var res
= self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
1098 self.compiler
.mainmodule
= m
1102 return table_send
(mmethod
, arguments
, mmethod
.const_color
)
1105 # Handel common special cases before doing the effective method invocation
1106 # This methods handle the `==` and `!=` methods and the case of the null receiver.
1107 # Note: a { is open in the generated C, that enclose and protect the effective method invocation.
1108 # Client must not forget to close the } after them.
1110 # The value returned is the result of the common special cases.
1111 # If not null, client must compine it with the result of their own effective method invocation.
1113 # If `before_send` can shortcut the whole message sending, a dummy `if(0){`
1114 # is generated to cancel the effective method invocation that will follow
1115 # TODO: find a better approach
1116 private fun before_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1118 var res
: nullable RuntimeVariable = null
1119 var recv
= arguments
.first
1120 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
1121 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
1123 self.add
("if ({recv} == NULL) \{")
1124 if mmethod
.name
== "==" then
1125 res
= self.new_var
(bool_type
)
1126 var arg
= arguments
[1]
1127 if arg
.mcasttype
isa MNullableType then
1128 self.add
("{res} = ({arg} == NULL);")
1129 else if arg
.mcasttype
isa MNullType then
1130 self.add
("{res} = 1; /* is null */")
1132 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
1134 else if mmethod
.name
== "!=" then
1135 res
= self.new_var
(bool_type
)
1136 var arg
= arguments
[1]
1137 if arg
.mcasttype
isa MNullableType then
1138 self.add
("{res} = ({arg} != NULL);")
1139 else if arg
.mcasttype
isa MNullType then
1140 self.add
("{res} = 0; /* is null */")
1142 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
1145 self.add_abort
("Receiver is null")
1147 self.add
("\} else \{")
1151 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
1152 if res
== null then res
= self.new_var
(bool_type
)
1153 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
1154 var arg
= arguments
[1]
1155 if arg
.mcasttype
isa MNullType then
1156 if mmethod
.name
== "==" then
1157 self.add
("{res} = 0; /* arg is null but recv is not */")
1159 self.add
("{res} = 1; /* arg is null and recv is not */")
1161 self.add
("\}") # closes the null case
1162 self.add
("if (0) \{") # what follow is useless, CC will drop it
1168 private fun table_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable], const_color
: String): nullable RuntimeVariable
1170 compiler
.modelbuilder
.nb_invok_by_tables
+= 1
1171 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_tables++;")
1173 assert arguments
.length
== mmethod
.intro
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethod}. {arguments.length} arguments given.")
1174 var recv
= arguments
.first
1176 var res0
= before_send
(mmethod
, arguments
)
1178 var res
: nullable RuntimeVariable
1179 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
1180 var ret
= msignature
.return_mtype
1181 if mmethod
.is_new
then
1182 ret
= arguments
.first
.mtype
1183 res
= self.new_var
(ret
)
1184 else if ret
== null then
1187 res
= self.new_var
(ret
)
1190 var s
= new FlatBuffer
1191 var ss
= new FlatBuffer
1195 for i
in [0..msignature
.arity
[ do
1196 var a
= arguments
[i
+1]
1197 var t
= msignature
.mparameters
[i
].mtype
1198 if i
== msignature
.vararg_rank
then
1199 t
= arguments
[i
+1].mcasttype
1201 s
.append
(", {t.ctype}")
1202 a
= self.autobox
(a
, t
)
1208 if ret
== null then r
= "void" else r
= ret
.ctype
1209 self.require_declaration
(const_color
)
1210 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1213 self.add
("{res} = {call};")
1218 if res0
!= null then
1224 self.add
("\}") # closes the null case
1229 redef fun call
(mmethoddef
, recvtype
, arguments
)
1231 assert arguments
.length
== mmethoddef
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
1233 var res
: nullable RuntimeVariable
1234 var ret
= mmethoddef
.msignature
.return_mtype
1235 if mmethoddef
.mproperty
.is_new
then
1236 ret
= arguments
.first
.mtype
1237 res
= self.new_var
(ret
)
1238 else if ret
== null then
1241 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1242 res
= self.new_var
(ret
)
1245 if (mmethoddef
.is_intern
and not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
) or
1246 (compiler
.modelbuilder
.toolcontext
.opt_inline_some_methods
.value
and mmethoddef
.can_inline
(self)) then
1247 compiler
.modelbuilder
.nb_invok_by_inline
+= 1
1248 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_inline++;")
1249 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1250 frame
.returnlabel
= self.get_name
("RET_LABEL")
1251 frame
.returnvar
= res
1252 var old_frame
= self.frame
1254 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) on {arguments.first.inspect} */")
1255 mmethoddef
.compile_inside_to_c
(self, arguments
)
1256 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1258 self.frame
= old_frame
1261 compiler
.modelbuilder
.nb_invok_by_direct
+= 1
1262 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_direct++;")
1265 self.adapt_signature
(mmethoddef
, arguments
)
1267 self.require_declaration
(mmethoddef
.c_name
)
1269 self.add
("{mmethoddef.c_name}({arguments.join(", ")}); /* Direct call {mmethoddef} on {arguments.first.inspect}*/")
1272 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1278 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1280 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1281 # In order to shortcut the primitive, we need to find the most specific method
1282 # However, because of performance (no flattening), we always work on the realmainmodule
1283 var main
= self.compiler
.mainmodule
1284 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1285 var res
= self.monomorphic_super_send
(m
, recvtype
, arguments
)
1286 self.compiler
.mainmodule
= main
1289 return table_send
(m
.mproperty
, arguments
, m
.const_color
)
1292 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1294 # A vararg must be stored into an new array
1295 # The trick is that the dymaic type of the array may depends on the receiver
1296 # of the method (ie recv) if the static type is unresolved
1297 # This is more complex than usual because the unresolved type must not be resolved
1298 # with the current receiver (ie self).
1299 # Therefore to isolate the resolution from self, a local Frame is created.
1300 # One can see this implementation as an inlined method of the receiver whose only
1301 # job is to allocate the array
1302 var old_frame
= self.frame
1303 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1305 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1306 var res
= self.array_instance
(varargs
, elttype
)
1307 self.frame
= old_frame
1311 redef fun isset_attribute
(a
, recv
)
1313 self.check_recv_notnull
(recv
)
1314 var res
= self.new_var
(bool_type
)
1316 # What is the declared type of the attribute?
1317 var mtype
= a
.intro
.static_mtype
.as(not null)
1318 var intromclassdef
= a
.intro
.mclassdef
1319 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1321 if mtype
isa MNullableType then
1322 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1326 self.require_declaration
(a
.const_color
)
1327 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1328 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1331 if mtype
.ctype
== "val*" then
1332 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1334 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1340 redef fun read_attribute
(a
, recv
)
1342 self.check_recv_notnull
(recv
)
1344 # What is the declared type of the attribute?
1345 var ret
= a
.intro
.static_mtype
.as(not null)
1346 var intromclassdef
= a
.intro
.mclassdef
1347 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1349 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1350 self.compiler
.attr_read_count
+= 1
1351 self.add
("count_attr_reads++;")
1354 self.require_declaration
(a
.const_color
)
1355 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1356 # Get the attribute or a box (ie. always a val*)
1357 var cret
= self.object_type
.as_nullable
1358 var res
= self.new_var
(cret
)
1361 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1363 # Check for Uninitialized attribute
1364 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1365 self.add
("if (unlikely({res} == NULL)) \{")
1366 self.add_abort
("Uninitialized attribute {a.name}")
1369 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1370 self.compiler
.isset_checks_count
+= 1
1371 self.add
("count_isset_checks++;")
1375 # Return the attribute or its unboxed version
1376 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1377 return self.autobox
(res
, ret
)
1379 var res
= self.new_var
(ret
)
1380 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1382 # Check for Uninitialized attribute
1383 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_attr_isset
.value
then
1384 self.add
("if (unlikely({res} == NULL)) \{")
1385 self.add_abort
("Uninitialized attribute {a.name}")
1387 if self.compiler
.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
1388 self.compiler
.isset_checks_count
+= 1
1389 self.add
("count_isset_checks++;")
1397 redef fun write_attribute
(a
, recv
, value
)
1399 self.check_recv_notnull
(recv
)
1401 # What is the declared type of the attribute?
1402 var mtype
= a
.intro
.static_mtype
.as(not null)
1403 var intromclassdef
= a
.intro
.mclassdef
1404 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1406 # Adapt the value to the declared type
1407 value
= self.autobox
(value
, mtype
)
1409 self.require_declaration
(a
.const_color
)
1410 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1411 var attr
= "{recv}->attrs[{a.const_color}]"
1412 if mtype
.ctype
!= "val*" then
1413 assert mtype
isa MClassType
1414 # The attribute is primitive, thus we store it in a box
1415 # The trick is to create the box the first time then resuse the box
1416 self.add
("if ({attr} != NULL) \{")
1417 self.add
("((struct instance_{mtype.c_instance_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1418 self.add
("\} else \{")
1419 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1420 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1423 # The attribute is not primitive, thus store it direclty
1424 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1427 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1431 # Check that mtype is a live open type
1432 fun hardening_live_open_type
(mtype
: MType)
1434 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1435 self.require_declaration
(mtype
.const_color
)
1436 var col
= mtype
.const_color
1437 self.add
("if({col} == -1) \{")
1438 self.add
("fprintf(stderr, \"Resolution of a dead open
type: %s\\n\
", \"{mtype.to_s.escape_to_c}\
");")
1439 self.add_abort
("open type dead")
1443 # Check that mtype it a pointer to a live cast type
1444 fun hardening_cast_type
(t
: String)
1446 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1447 add
("if({t} == NULL) \{")
1448 add_abort
("cast type null")
1450 add
("if({t}->id == -1 || {t}->color == -1) \{")
1451 add
("fprintf(stderr, \"Try to cast on a dead cast
type: %s\\n\
", {t}->name);")
1452 add_abort
("cast type dead")
1456 redef fun init_instance
(mtype
)
1458 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1459 var compiler
= self.compiler
1460 if mtype
isa MGenericType and mtype
.need_anchor
then
1461 hardening_live_open_type
(mtype
)
1462 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1463 var recv
= self.frame
.arguments
.first
1464 var recv_type_info
= self.type_info
(recv
)
1465 self.require_declaration
(mtype
.const_color
)
1466 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1467 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1469 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1472 compiler
.undead_types
.add
(mtype
)
1473 self.require_declaration
("type_{mtype.c_name}")
1474 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1477 redef fun type_test
(value
, mtype
, tag
)
1479 self.add
("/* {value.inspect} isa {mtype} */")
1480 var compiler
= self.compiler
1482 var recv
= self.frame
.arguments
.first
1483 var recv_type_info
= self.type_info
(recv
)
1485 var res
= self.new_var
(bool_type
)
1487 var cltype
= self.get_name
("cltype")
1488 self.add_decl
("int {cltype};")
1489 var idtype
= self.get_name
("idtype")
1490 self.add_decl
("int {idtype};")
1492 var maybe_null
= self.maybe_null
(value
)
1493 var accept_null
= "0"
1495 if ntype
isa MNullableType then
1500 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1501 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1502 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1503 self.compiler
.count_type_test_skipped
[tag
] += 1
1504 self.add
("count_type_test_skipped_{tag}++;")
1509 if ntype
.need_anchor
then
1510 var type_struct
= self.get_name
("type_struct")
1511 self.add_decl
("const struct type* {type_struct};")
1513 # Either with resolution_table with a direct resolution
1514 hardening_live_open_type
(mtype
)
1515 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1516 self.require_declaration
(mtype
.const_color
)
1517 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1518 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})];")
1520 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.const_color}];")
1522 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1523 self.compiler
.count_type_test_unresolved
[tag
] += 1
1524 self.add
("count_type_test_unresolved_{tag}++;")
1526 hardening_cast_type
(type_struct
)
1527 self.add
("{cltype} = {type_struct}->color;")
1528 self.add
("{idtype} = {type_struct}->id;")
1529 if maybe_null
and accept_null
== "0" then
1530 var is_nullable
= self.get_name
("is_nullable")
1531 self.add_decl
("short int {is_nullable};")
1532 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1533 accept_null
= is_nullable
.to_s
1535 else if ntype
isa MClassType then
1536 compiler
.undead_types
.add
(mtype
)
1537 self.require_declaration
("type_{mtype.c_name}")
1538 hardening_cast_type
("(&type_{mtype.c_name})")
1539 self.add
("{cltype} = type_{mtype.c_name}.color;")
1540 self.add
("{idtype} = type_{mtype.c_name}.id;")
1541 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1542 self.compiler
.count_type_test_resolved
[tag
] += 1
1543 self.add
("count_type_test_resolved_{tag}++;")
1546 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); show_backtrace(1);")
1549 # check color is in table
1551 self.add
("if({value} == NULL) \{")
1552 self.add
("{res} = {accept_null};")
1553 self.add
("\} else \{")
1555 var value_type_info
= self.type_info
(value
)
1556 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1557 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1559 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1560 self.add
("{res} = 0;")
1561 self.add
("\} else \{")
1562 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1571 redef fun is_same_type_test
(value1
, value2
)
1573 var res
= self.new_var
(bool_type
)
1574 # Swap values to be symetric
1575 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1580 if value1
.mtype
.ctype
!= "val*" then
1581 if value2
.mtype
== value1
.mtype
then
1582 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1583 else if value2
.mtype
.ctype
!= "val*" then
1584 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1586 var mtype1
= value1
.mtype
.as(MClassType)
1587 self.require_declaration
("class_{mtype1.c_name}")
1588 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1591 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1596 redef fun class_name_string
(value
)
1598 var res
= self.get_name
("var_class_name")
1599 self.add_decl
("const char* {res};")
1600 if value
.mtype
.ctype
== "val*" then
1601 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1602 else if value
.mtype
isa MClassType and value
.mtype
.as(MClassType).mclass
.kind
== extern_kind
then
1603 self.add
"{res} = \"{value.mtype.as(MClassType).mclass}\
";"
1605 self.require_declaration
("type_{value.mtype.c_name}")
1606 self.add
"{res} = type_{value.mtype.c_name}.name;"
1611 redef fun equal_test
(value1
, value2
)
1613 var res
= self.new_var
(bool_type
)
1614 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1619 if value1
.mtype
.ctype
!= "val*" then
1620 if value2
.mtype
== value1
.mtype
then
1621 self.add
("{res} = {value1} == {value2};")
1622 else if value2
.mtype
.ctype
!= "val*" then
1623 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1625 var mtype1
= value1
.mtype
.as(MClassType)
1626 self.require_declaration
("class_{mtype1.c_name}")
1627 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1628 self.add
("if ({res}) \{")
1629 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1634 var maybe_null
= true
1635 var test
= new Array[String]
1636 var t1
= value1
.mcasttype
1637 if t1
isa MNullableType then
1638 test
.add
("{value1} != NULL")
1643 var t2
= value2
.mcasttype
1644 if t2
isa MNullableType then
1645 test
.add
("{value2} != NULL")
1651 var incompatible
= false
1653 if t1
.ctype
!= "val*" then
1656 # No need to compare class
1657 else if t2
.ctype
!= "val*" then
1659 else if can_be_primitive
(value2
) then
1660 test
.add
("{value1}->class == {value2}->class")
1664 else if t2
.ctype
!= "val*" then
1666 if can_be_primitive
(value1
) then
1667 test
.add
("{value1}->class == {value2}->class")
1675 if incompatible
then
1677 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1680 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1684 if primitive
!= null then
1685 test
.add
("((struct instance_{primitive.c_instance_name}*){value1})->value == ((struct instance_{primitive.c_instance_name}*){value2})->value")
1686 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1687 test
.add
("{value1}->class == {value2}->class")
1688 var s
= new Array[String]
1689 for t
, v
in self.compiler
.box_kinds
do
1690 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_instance_name}*){value1})->value == ((struct instance_{t.c_instance_name}*){value2})->value)"
1692 test
.add
("({s.join(" || ")})")
1694 self.add
("{res} = {value1} == {value2};")
1697 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1701 fun can_be_primitive
(value
: RuntimeVariable): Bool
1703 var t
= value
.mcasttype
1704 if t
isa MNullableType then t
= t
.mtype
1705 if not t
isa MClassType then return false
1706 var k
= t
.mclass
.kind
1707 return k
== interface_kind
or t
.ctype
!= "val*"
1710 fun maybe_null
(value
: RuntimeVariable): Bool
1712 var t
= value
.mcasttype
1713 return t
isa MNullableType or t
isa MNullType
1716 redef fun array_instance
(array
, elttype
)
1718 var nclass
= self.get_class
("NativeArray")
1719 var arrayclass
= self.get_class
("Array")
1720 var arraytype
= arrayclass
.get_mtype
([elttype
])
1721 var res
= self.init_instance
(arraytype
)
1722 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1723 var length
= self.int_instance
(array
.length
)
1724 var nat
= native_array_instance
(elttype
, length
)
1725 for i
in [0..array
.length
[ do
1726 var r
= self.autobox
(array
[i
], self.object_type
)
1727 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1729 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1734 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1736 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1737 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1738 assert mtype
isa MGenericType
1739 var compiler
= self.compiler
1740 if mtype
.need_anchor
then
1741 hardening_live_open_type
(mtype
)
1742 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1743 var recv
= self.frame
.arguments
.first
1744 var recv_type_info
= self.type_info
(recv
)
1745 self.require_declaration
(mtype
.const_color
)
1746 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1747 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1749 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1752 compiler
.undead_types
.add
(mtype
)
1753 self.require_declaration
("type_{mtype.c_name}")
1754 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1757 redef fun native_array_def
(pname
, ret_type
, arguments
)
1759 var elttype
= arguments
.first
.mtype
1760 var nclass
= self.get_class
("NativeArray")
1761 var recv
= "((struct instance_{nclass.c_instance_name}*){arguments[0]})->values"
1762 if pname
== "[]" then
1763 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1765 else if pname
== "[]=" then
1766 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1768 else if pname
== "length" then
1769 self.ret
(self.new_expr
("((struct instance_{nclass.c_instance_name}*){arguments[0]})->length", ret_type
.as(not null)))
1771 else if pname
== "copy_to" then
1772 var recv1
= "((struct instance_{nclass.c_instance_name}*){arguments[1]})->values"
1773 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1778 redef fun calloc_array
(ret_type
, arguments
)
1780 var mclass
= self.get_class
("ArrayCapable")
1781 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1782 var res
= self.native_array_instance
(ft
, arguments
[1])
1786 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1787 assert mtype
.need_anchor
1788 var compiler
= self.compiler
1789 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1790 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1792 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1796 redef class MMethodDef
1797 fun separate_runtime_function
: AbstractRuntimeFunction
1799 var res
= self.separate_runtime_function_cache
1801 res
= new SeparateRuntimeFunction(self)
1802 self.separate_runtime_function_cache
= res
1806 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1808 fun virtual_runtime_function
: AbstractRuntimeFunction
1810 var res
= self.virtual_runtime_function_cache
1812 res
= new VirtualRuntimeFunction(self)
1813 self.virtual_runtime_function_cache
= res
1817 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1820 # The C function associated to a methoddef separately compiled
1821 class SeparateRuntimeFunction
1822 super AbstractRuntimeFunction
1824 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1826 redef fun to_s
do return self.mmethoddef
.to_s
1828 redef fun compile_to_c
(compiler
)
1830 var mmethoddef
= self.mmethoddef
1832 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1833 var v
= compiler
.new_visitor
1834 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1835 var arguments
= new Array[RuntimeVariable]
1836 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1839 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1841 var sig
= new FlatBuffer
1842 var comment
= new FlatBuffer
1843 var ret
= msignature
.return_mtype
1845 sig
.append
("{ret.ctype} ")
1846 else if mmethoddef
.mproperty
.is_new
then
1848 sig
.append
("{ret.ctype} ")
1852 sig
.append
(self.c_name
)
1853 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1854 comment
.append
("({selfvar}: {selfvar.mtype}")
1855 arguments
.add
(selfvar
)
1856 for i
in [0..msignature
.arity
[ do
1857 var mtype
= msignature
.mparameters
[i
].mtype
1858 if i
== msignature
.vararg_rank
then
1859 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1861 comment
.append
(", {mtype}")
1862 sig
.append
(", {mtype.ctype} p{i}")
1863 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1864 arguments
.add
(argvar
)
1869 comment
.append
(": {ret}")
1871 compiler
.provide_declaration
(self.c_name
, "{sig};")
1873 v
.add_decl
("/* method {self} for {comment} */")
1874 v
.add_decl
("{sig} \{")
1876 frame
.returnvar
= v
.new_var
(ret
)
1878 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1880 if recv
!= arguments
.first
.mtype
then
1881 #print "{self} {recv} {arguments.first}"
1883 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1885 v
.add
("{frame.returnlabel.as(not null)}:;")
1887 v
.add
("return {frame.returnvar.as(not null)};")
1890 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})"
1894 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1895 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1896 class VirtualRuntimeFunction
1897 super AbstractRuntimeFunction
1899 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1901 redef fun to_s
do return self.mmethoddef
.to_s
1903 redef fun compile_to_c
(compiler
)
1905 var mmethoddef
= self.mmethoddef
1907 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1908 var v
= compiler
.new_visitor
1909 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1910 var arguments
= new Array[RuntimeVariable]
1911 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1914 var sig
= new FlatBuffer
1915 var comment
= new FlatBuffer
1917 # Because the function is virtual, the signature must match the one of the original class
1918 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1919 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1920 var ret
= msignature
.return_mtype
1922 sig
.append
("{ret.ctype} ")
1923 else if mmethoddef
.mproperty
.is_new
then
1925 sig
.append
("{ret.ctype} ")
1929 sig
.append
(self.c_name
)
1930 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1931 comment
.append
("({selfvar}: {selfvar.mtype}")
1932 arguments
.add
(selfvar
)
1933 for i
in [0..msignature
.arity
[ do
1934 var mtype
= msignature
.mparameters
[i
].mtype
1935 if i
== msignature
.vararg_rank
then
1936 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1938 comment
.append
(", {mtype}")
1939 sig
.append
(", {mtype.ctype} p{i}")
1940 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1941 arguments
.add
(argvar
)
1946 comment
.append
(": {ret}")
1948 compiler
.provide_declaration
(self.c_name
, "{sig};")
1950 v
.add_decl
("/* method {self} for {comment} */")
1951 v
.add_decl
("{sig} \{")
1953 frame
.returnvar
= v
.new_var
(ret
)
1955 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1957 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1959 assert subret
!= null
1960 v
.assign
(frame
.returnvar
.as(not null), subret
)
1963 v
.add
("{frame.returnlabel.as(not null)}:;")
1965 v
.add
("return {frame.returnvar.as(not null)};")
1968 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})"
1972 redef fun call
(v
, arguments
) do abort
1976 fun const_color
: String do return "COLOR_{c_name}"
1978 # C name of the instance type to use
1979 fun c_instance_name
: String do return c_name
1982 redef class MClassType
1983 redef fun c_instance_name
do return mclass
.c_instance_name
1987 # Extern classes use the C instance of kernel::Pointer
1988 fun c_instance_name
: String
1990 if kind
== extern_kind
then
1991 return "kernel__Pointer"
1996 redef class MProperty
1997 fun const_color
: String do return "COLOR_{c_name}"
2000 redef class MPropDef
2001 fun const_color
: String do return "COLOR_{c_name}"