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")
38 # --use-naive-coloring
39 var opt_bm_typing
: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
40 # --use-mod-perfect-hashing
41 var opt_phmod_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
42 # --use-and-perfect-hashing
43 var opt_phand_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
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
)
55 self.option_context
.add_option
(self.opt_bm_typing
)
56 self.option_context
.add_option
(self.opt_phmod_typing
)
57 self.option_context
.add_option
(self.opt_phand_typing
)
58 self.option_context
.add_option
(self.opt_tables_metrics
)
62 redef class ModelBuilder
63 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: nullable RapidTypeAnalysis)
66 self.toolcontext
.info
("*** GENERATING C ***", 1)
68 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
69 compiler
.compile_header
71 # compile class structures
72 self.toolcontext
.info
("Property coloring", 2)
73 compiler
.new_file
("{mainmodule.name}.classes")
74 compiler
.do_property_coloring
75 for m
in mainmodule
.in_importation
.greaters
do
76 for mclass
in m
.intro_mclasses
do
77 if mclass
.kind
== abstract_kind
or mclass
.kind
== interface_kind
then continue
78 compiler
.compile_class_to_c
(mclass
)
82 # The main function of the C
83 compiler
.new_file
("{mainmodule.name}.main")
84 compiler
.compile_main_function
87 for m
in mainmodule
.in_importation
.greaters
do
88 self.toolcontext
.info
("Generate C for module {m}", 2)
89 compiler
.new_file
("{m.name}.sep")
90 compiler
.compile_module_to_c
(m
)
93 # compile live & cast type structures
94 self.toolcontext
.info
("Type coloring", 2)
95 compiler
.new_file
("{mainmodule.name}.types")
96 var mtypes
= compiler
.do_type_coloring
98 compiler
.compile_type_to_c
(t
)
100 # compile remaining types structures (useless but needed for the symbol resolution at link-time)
101 for t
in compiler
.undead_types
do
102 if mtypes
.has
(t
) then continue
103 compiler
.compile_type_to_c
(t
)
106 compiler
.display_stats
109 self.toolcontext
.info
("*** END GENERATING C: {time1-time0} ***", 2)
110 write_and_make
(compiler
)
113 # Count number of invocations by VFT
114 private var nb_invok_by_tables
= 0
115 # Count number of invocations by direct call
116 private var nb_invok_by_direct
= 0
117 # Count number of invocations by inlining
118 private var nb_invok_by_inline
= 0
121 # Singleton that store the knowledge about the separate compilation process
122 class SeparateCompiler
123 super AbstractCompiler
125 redef type VISITOR: SeparateCompilerVisitor
127 # The result of the RTA (used to know live types and methods)
128 var runtime_type_analysis
: nullable RapidTypeAnalysis
130 private var undead_types
: Set[MType] = new HashSet[MType]
131 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
133 private var type_layout
: nullable Layout[MType]
134 private var resolution_layout
: nullable Layout[MType]
135 protected var method_layout
: nullable Layout[PropertyLayoutElement]
136 protected var attr_layout
: nullable Layout[MAttribute]
138 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: nullable RapidTypeAnalysis) do
139 super(mainmodule
, mmbuilder
)
140 var file
= new_file
("nit.common")
141 self.header
= new CodeWriter(file
)
142 self.runtime_type_analysis
= runtime_type_analysis
143 self.compile_box_kinds
146 redef fun compile_header_structs
do
147 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
148 self.compile_header_attribute_structs
149 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
151 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
152 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. */")
153 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
155 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
156 self.header
.add_decl
("struct types \{ int mask; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
158 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
161 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
162 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
163 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
164 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
167 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
170 fun compile_header_attribute_structs
172 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
173 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
175 self.header
.add_decl
("typedef union \{")
176 self.header
.add_decl
("void* val;")
177 for c
, v
in self.box_kinds
do
178 var t
= c
.mclass_type
179 self.header
.add_decl
("{t.ctype} {t.ctypename};")
181 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
185 fun compile_box_kinds
187 # Collect all bas box class
188 # FIXME: this is not completely fine with a separate compilation scheme
189 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
190 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
191 if classes
== null then continue
192 assert classes
.length
== 1 else print classes
.join
(", ")
193 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
197 var box_kinds
= new HashMap[MClass, Int]
199 fun box_kind_of
(mclass
: MClass): Int
201 if mclass
.mclass_type
.ctype
== "val*" then
203 else if mclass
.kind
== extern_kind
then
204 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
206 return self.box_kinds
[mclass
]
211 fun compile_color_consts
(colors
: Map[Object, Int]) do
213 for m
, c
in colors
do
214 compile_color_const
(v
, m
, c
)
218 fun compile_color_const
(v
: SeparateCompilerVisitor, m
: Object, color
: Int) do
219 if color_consts_done
.has
(m
) then return
220 if m
isa MProperty then
221 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
222 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
224 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
225 v
.add
("const int {m.const_color} = {color};")
227 else if m
isa MPropDef then
228 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
229 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
231 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
232 v
.add
("const int {m.const_color} = {color};")
234 else if m
isa MType then
235 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
236 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {color}")
238 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
239 v
.add
("const int {m.const_color} = {color};")
242 color_consts_done
.add
(m
)
245 private var color_consts_done
= new HashSet[Object]
247 # colorize classe properties
248 fun do_property_coloring
do
249 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
252 var method_layout_builder
: PropertyLayoutBuilder[PropertyLayoutElement]
253 var attribute_layout_builder
: PropertyLayoutBuilder[MAttribute]
254 #FIXME PH and BM layouts too slow for large programs
255 #if modelbuilder.toolcontext.opt_bm_typing.value then
256 # method_layout_builder = new MMethodBMizer(self.mainmodule)
257 # attribute_layout_builder = new MAttributeBMizer(self.mainmodule)
258 #else if modelbuilder.toolcontext.opt_phmod_typing.value then
259 # method_layout_builder = new MMethodHasher(new PHModOperator, self.mainmodule)
260 # attribute_layout_builder = new MAttributeHasher(new PHModOperator, self.mainmodule)
261 #else if modelbuilder.toolcontext.opt_phand_typing.value then
262 # method_layout_builder = new MMethodHasher(new PHAndOperator, self.mainmodule)
263 # attribute_layout_builder = new MAttributeHasher(new PHAndOperator, self.mainmodule)
266 var class_layout_builder
= new MClassColorer(self.mainmodule
)
267 class_layout_builder
.build_layout
(mclasses
)
268 method_layout_builder
= new MPropertyColorer[PropertyLayoutElement](self.mainmodule
, class_layout_builder
)
269 attribute_layout_builder
= new MPropertyColorer[MAttribute](self.mainmodule
, class_layout_builder
)
272 # lookup properties to build layout with
273 var mmethods
= new HashMap[MClass, Set[PropertyLayoutElement]]
274 var mattributes
= new HashMap[MClass, Set[MAttribute]]
275 for mclass
in mclasses
do
276 mmethods
[mclass
] = new HashSet[PropertyLayoutElement]
277 mattributes
[mclass
] = new HashSet[MAttribute]
278 for mprop
in self.mainmodule
.properties
(mclass
) do
279 if mprop
isa MMethod then
280 mmethods
[mclass
].add
(mprop
)
281 else if mprop
isa MAttribute then
282 mattributes
[mclass
].add
(mprop
)
287 # Collect all super calls (dead or not)
288 var all_super_calls
= new HashSet[MMethodDef]
289 for mmodule
in self.mainmodule
.in_importation
.greaters
do
290 for mclassdef
in mmodule
.mclassdefs
do
291 for mpropdef
in mclassdef
.mpropdefs
do
292 if not mpropdef
isa MMethodDef then continue
293 if mpropdef
.has_supercall
then
294 all_super_calls
.add
(mpropdef
)
300 # lookup super calls and add it to the list of mmethods to build layout with
302 if runtime_type_analysis
!= null then
303 super_calls
= runtime_type_analysis
.live_super_sends
305 super_calls
= all_super_calls
308 for mmethoddef
in super_calls
do
309 var mclass
= mmethoddef
.mclassdef
.mclass
310 mmethods
[mclass
].add
(mmethoddef
)
311 for descendant
in mclass
.in_hierarchy
(self.mainmodule
).smallers
do
312 mmethods
[descendant
].add
(mmethoddef
)
317 self.method_layout
= method_layout_builder
.build_layout
(mmethods
)
318 self.method_tables
= build_method_tables
(mclasses
, super_calls
)
319 self.compile_color_consts
(method_layout
.pos
)
321 # attribute null color to dead supercalls
322 for mpropdef
in all_super_calls
do
323 if super_calls
.has
(mpropdef
) then continue
324 compile_color_const
(new_visitor
, mpropdef
, -1)
327 # attributes coloration
328 self.attr_layout
= attribute_layout_builder
.build_layout
(mattributes
)
329 self.attr_tables
= build_attr_tables
(mclasses
)
330 self.compile_color_consts
(attr_layout
.pos
)
333 fun build_method_tables
(mclasses
: Set[MClass], super_calls
: Set[MMethodDef]): Map[MClass, Array[nullable MPropDef]] do
334 var layout
= self.method_layout
335 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
336 for mclass
in mclasses
do
337 var table
= new Array[nullable MPropDef]
338 var supercalls
= new List[MMethodDef]
340 # first, fill table from parents by reverse linearization order
341 var parents
= new Array[MClass]
342 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
343 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
344 self.mainmodule
.linearize_mclasses
(parents
)
347 for parent
in parents
do
348 if parent
== mclass
then continue
349 for mproperty
in self.mainmodule
.properties
(parent
) do
350 if not mproperty
isa MMethod then continue
351 var color
= layout
.pos
[mproperty
]
352 if table
.length
<= color
then
353 for i
in [table
.length
.. color
[ do
357 for mpropdef
in mproperty
.mpropdefs
do
358 if mpropdef
.mclassdef
.mclass
== parent
then
359 table
[color
] = mpropdef
364 # lookup for super calls in super classes
365 for mmethoddef
in super_calls
do
366 for mclassdef
in parent
.mclassdefs
do
367 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
368 supercalls
.add
(mmethoddef
)
374 # then override with local properties
375 for mproperty
in self.mainmodule
.properties
(mclass
) do
376 if not mproperty
isa MMethod then continue
377 var color
= layout
.pos
[mproperty
]
378 if table
.length
<= color
then
379 for i
in [table
.length
.. color
[ do
383 for mpropdef
in mproperty
.mpropdefs
do
384 if mpropdef
.mclassdef
.mclass
== mclass
then
385 table
[color
] = mpropdef
390 # lookup for super calls in local class
391 for mmethoddef
in super_calls
do
392 for mclassdef
in mclass
.mclassdefs
do
393 if mclassdef
.mpropdefs
.has
(mmethoddef
) then
394 supercalls
.add
(mmethoddef
)
398 # insert super calls in table according to receiver
399 for supercall
in supercalls
do
400 var color
= layout
.pos
[supercall
]
401 if table
.length
<= color
then
402 for i
in [table
.length
.. color
[ do
406 var mmethoddef
= supercall
.lookup_next_definition
(self.mainmodule
, mclass
.intro
.bound_mtype
)
407 table
[color
] = mmethoddef
409 tables
[mclass
] = table
414 fun build_attr_tables
(mclasses
: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
415 var layout
= self.attr_layout
416 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
417 for mclass
in mclasses
do
418 var table
= new Array[nullable MPropDef]
419 # first, fill table from parents by reverse linearization order
420 var parents
= new Array[MClass]
421 if mainmodule
.flatten_mclass_hierarchy
.has
(mclass
) then
422 parents
= mclass
.in_hierarchy
(mainmodule
).greaters
.to_a
423 self.mainmodule
.linearize_mclasses
(parents
)
425 for parent
in parents
do
426 if parent
== mclass
then continue
427 for mproperty
in self.mainmodule
.properties
(parent
) do
428 if not mproperty
isa MAttribute then continue
429 var color
= layout
.pos
[mproperty
]
430 if table
.length
<= color
then
431 for i
in [table
.length
.. color
[ do
435 for mpropdef
in mproperty
.mpropdefs
do
436 if mpropdef
.mclassdef
.mclass
== parent
then
437 table
[color
] = mpropdef
443 # then override with local properties
444 for mproperty
in self.mainmodule
.properties
(mclass
) do
445 if not mproperty
isa MAttribute then continue
446 var color
= layout
.pos
[mproperty
]
447 if table
.length
<= color
then
448 for i
in [table
.length
.. color
[ do
452 for mpropdef
in mproperty
.mpropdefs
do
453 if mpropdef
.mclassdef
.mclass
== mclass
then
454 table
[color
] = mpropdef
458 tables
[mclass
] = table
463 # colorize live types of the program
464 private fun do_type_coloring
: POSet[MType] do
465 var mtypes
= new HashSet[MType]
466 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
467 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
468 for c
in self.box_kinds
.keys
do
469 mtypes
.add
(c
.mclass_type
)
473 var layout_builder
: TypingLayoutBuilder[MType]
474 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
475 layout_builder
= new MTypeBMizer(self.mainmodule
)
476 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
477 layout_builder
= new MTypeHasher(new PHModOperator, self.mainmodule
)
478 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
479 layout_builder
= new MTypeHasher(new PHAndOperator, self.mainmodule
)
481 layout_builder
= new MTypeColorer(self.mainmodule
)
485 self.type_layout
= layout_builder
.build_layout
(mtypes
)
486 var poset
= layout_builder
.poset
.as(not null)
487 self.type_tables
= self.build_type_tables
(poset
)
489 # VT and FT are stored with other unresolved types in the big resolution_tables
490 self.compile_resolution_tables
(mtypes
)
496 fun build_type_tables
(mtypes
: POSet[MType]): Map[MType, Array[nullable MType]] do
497 var tables
= new HashMap[MType, Array[nullable MType]]
498 var layout
= self.type_layout
499 for mtype
in mtypes
do
500 var table
= new Array[nullable MType]
501 for sup
in mtypes
[mtype
].greaters
do
503 if layout
isa PHLayout[MType, MType] then
504 color
= layout
.hashes
[mtype
][sup
]
506 color
= layout
.pos
[sup
]
508 if table
.length
<= color
then
509 for i
in [table
.length
.. color
[ do
515 tables
[mtype
] = table
520 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
521 # resolution_tables is used to perform a type resolution at runtime in O(1)
523 # During the visit of the body of classes, live_unresolved_types are collected
525 # Collect all live_unresolved_types (visited in the body of classes)
527 # Determinate fo each livetype what are its possible requested anchored types
528 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
529 for mtype
in self.runtime_type_analysis
.live_types
do
530 var set
= new HashSet[MType]
531 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
532 if self.live_unresolved_types
.has_key
(cd
) then
533 set
.add_all
(self.live_unresolved_types
[cd
])
536 mtype2unresolved
[mtype
] = set
539 # Compute the table layout with the prefered method
540 var resolution_builder
: ResolutionLayoutBuilder
541 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
542 resolution_builder
= new ResolutionBMizer
543 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
544 resolution_builder
= new ResolutionHasher(new PHModOperator)
545 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
546 resolution_builder
= new ResolutionHasher(new PHAndOperator)
548 resolution_builder
= new ResolutionColorer
550 self.resolution_layout
= resolution_builder
.build_layout
(mtype2unresolved
)
551 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
553 # Compile a C constant for each collected unresolved type.
554 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
555 var all_unresolved
= new HashSet[MType]
556 for t
in self.live_unresolved_types
.values
do
557 all_unresolved
.add_all
(t
)
559 var all_unresolved_types_colors
= new HashMap[MType, Int]
560 for t
in all_unresolved
do
561 if self.resolution_layout
.pos
.has_key
(t
) then
562 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
564 all_unresolved_types_colors
[t
] = -1
567 self.compile_color_consts
(all_unresolved_types_colors
)
570 #for k, v in unresolved_types_tables.as(not null) do
571 # print "{k}: {v.join(", ")}"
576 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
577 var tables
= new HashMap[MClassType, Array[nullable MType]]
578 var layout
= self.resolution_layout
579 for mclasstype
, mtypes
in elements
do
580 var table
= new Array[nullable MType]
581 for mtype
in mtypes
do
583 if layout
isa PHLayout[MClassType, MType] then
584 color
= layout
.hashes
[mclasstype
][mtype
]
586 color
= layout
.pos
[mtype
]
588 if table
.length
<= color
then
589 for i
in [table
.length
.. color
[ do
595 tables
[mclasstype
] = table
600 # Separately compile all the method definitions of the module
601 fun compile_module_to_c
(mmodule
: MModule)
603 var old_module
= self.mainmodule
604 self.mainmodule
= mmodule
605 for cd
in mmodule
.mclassdefs
do
606 for pd
in cd
.mpropdefs
do
607 if not pd
isa MMethodDef then continue
608 #print "compile {pd} @ {cd} @ {mmodule}"
609 var r
= pd
.separate_runtime_function
611 var r2
= pd
.virtual_runtime_function
612 r2
.compile_to_c
(self)
615 self.mainmodule
= old_module
618 # Globaly compile the type structure of a live type
619 fun compile_type_to_c
(mtype
: MType)
621 assert not mtype
.need_anchor
622 var layout
= self.type_layout
623 var is_live
= mtype
isa MClassType and runtime_type_analysis
.live_types
.has
(mtype
)
624 var is_cast_live
= runtime_type_analysis
.live_cast_types
.has
(mtype
)
625 var c_name
= mtype
.c_name
626 var v
= new SeparateCompilerVisitor(self)
627 v
.add_decl
("/* runtime type {mtype} */")
629 # extern const struct type_X
630 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
632 # const struct type_X
633 v
.add_decl
("const struct type type_{c_name} = \{")
635 # type id (for cast target)
637 v
.add_decl
("{layout.ids[mtype]},")
639 v
.add_decl
("-1, /*CAST DEAD*/")
643 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
645 # type color (for cast target)
647 if layout
isa PHLayout[MType, MType] then
648 v
.add_decl
("{layout.masks[mtype]},")
650 v
.add_decl
("{layout.pos[mtype]},")
653 v
.add_decl
("-1, /*CAST DEAD*/")
657 if mtype
isa MNullableType then
663 # resolution table (for receiver)
665 var mclass_type
= mtype
666 if mclass_type
isa MNullableType then mclass_type
= mclass_type
.mtype
667 assert mclass_type
isa MClassType
668 if resolution_tables
[mclass_type
].is_empty
then
669 v
.add_decl
("NULL, /*NO RESOLUTIONS*/")
671 compile_type_resolution_table
(mtype
)
672 v
.require_declaration
("resolution_table_{c_name}")
673 v
.add_decl
("&resolution_table_{c_name},")
676 v
.add_decl
("NULL, /*DEAD*/")
679 # cast table (for receiver)
681 v
.add_decl
("{self.type_tables[mtype].length},")
683 for stype
in self.type_tables
[mtype
] do
684 if stype
== null then
685 v
.add_decl
("-1, /* empty */")
687 v
.add_decl
("{layout.ids[stype]}, /* {stype} */")
692 v
.add_decl
("0, \{\}, /*DEAD TYPE*/")
697 fun compile_type_resolution_table
(mtype
: MType) do
699 var mclass_type
: MClassType
700 if mtype
isa MNullableType then
701 mclass_type
= mtype
.mtype
.as(MClassType)
703 mclass_type
= mtype
.as(MClassType)
706 var layout
= self.resolution_layout
708 # extern const struct resolution_table_X resolution_table_X
709 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
711 # const struct fts_table_X fts_table_X
713 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
714 if layout
isa PHLayout[MClassType, MType] then
715 v
.add_decl
("{layout.masks[mclass_type]},")
717 v
.add_decl
("0, /* dummy */")
720 for t
in self.resolution_tables
[mclass_type
] do
722 v
.add_decl
("NULL, /* empty */")
724 # The table stores the result of the type resolution
725 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
726 # the value stored is tv.
727 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
728 # FIXME: What typeids means here? How can a tv not be live?
729 if self.type_layout
.ids
.has_key
(tv
) then
730 v
.require_declaration
("type_{tv.c_name}")
731 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
733 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
741 # Globally compile the table of the class mclass
742 # In a link-time optimisation compiler, tables are globally computed
743 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
744 fun compile_class_to_c
(mclass
: MClass)
746 var mtype
= mclass
.intro
.bound_mtype
747 var c_name
= mclass
.c_name
748 var c_instance_name
= mclass
.c_instance_name
750 var vft
= self.method_tables
[mclass
]
751 var attrs
= self.attr_tables
[mclass
]
754 var rta
= runtime_type_analysis
755 var is_dead
= rta
!= null and not rta
.live_classes
.has
(mclass
) and mtype
.ctype
== "val*" and mclass
.name
!= "NativeArray"
757 v
.add_decl
("/* runtime class {c_name} */")
761 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
762 v
.add_decl
("const struct class class_{c_name} = \{")
763 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
765 for i
in [0 .. vft
.length
[ do
766 var mpropdef
= vft
[i
]
767 if mpropdef
== null then
768 v
.add_decl
("NULL, /* empty */")
770 assert mpropdef
isa MMethodDef
771 if rta
!= null and not rta
.live_methoddefs
.has
(mpropdef
) then
772 v
.add_decl
("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
775 var rf
= mpropdef
.virtual_runtime_function
776 v
.require_declaration
(rf
.c_name
)
777 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
784 if mtype
.ctype
!= "val*" then
785 if mtype
.mclass
.name
== "Pointer" or mtype
.mclass
.kind
!= extern_kind
then
786 #Build instance struct
787 self.header
.add_decl
("struct instance_{c_instance_name} \{")
788 self.header
.add_decl
("const struct type *type;")
789 self.header
.add_decl
("const struct class *class;")
790 self.header
.add_decl
("{mtype.ctype} value;")
791 self.header
.add_decl
("\};")
794 if not rta
.live_types
.has
(mtype
) then return
797 self.provide_declaration
("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
798 v
.add_decl
("/* allocate {mtype} */")
799 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
800 v
.add
("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
801 v
.require_declaration
("type_{c_name}")
802 v
.add
("res->type = &type_{c_name};")
803 v
.require_declaration
("class_{c_name}")
804 v
.add
("res->class = &class_{c_name};")
805 v
.add
("res->value = value;")
806 v
.add
("return (val*)res;")
809 else if mclass
.name
== "NativeArray" then
810 #Build instance struct
811 self.header
.add_decl
("struct instance_{c_instance_name} \{")
812 self.header
.add_decl
("const struct type *type;")
813 self.header
.add_decl
("const struct class *class;")
814 # NativeArrays are just a instance header followed by a length and an array of values
815 self.header
.add_decl
("int length;")
816 self.header
.add_decl
("val* values[0];")
817 self.header
.add_decl
("\};")
820 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
821 v
.add_decl
("/* allocate {mtype} */")
822 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
823 var res
= v
.get_name
("self")
824 v
.add_decl
("struct instance_{c_instance_name} *{res};")
825 var mtype_elt
= mtype
.arguments
.first
826 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_instance_name}) + length*sizeof({mtype_elt.ctype}));")
827 v
.add
("{res}->type = type;")
828 hardening_live_type
(v
, "type")
829 v
.require_declaration
("class_{c_name}")
830 v
.add
("{res}->class = &class_{c_name};")
831 v
.add
("{res}->length = length;")
832 v
.add
("return (val*){res};")
838 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
839 v
.add_decl
("/* allocate {mtype} */")
840 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
842 v
.add_abort
("{mclass} is DEAD")
844 var res
= v
.new_named_var
(mtype
, "self")
846 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
847 v
.add
("{res}->type = type;")
848 hardening_live_type
(v
, "type")
849 v
.require_declaration
("class_{c_name}")
850 v
.add
("{res}->class = &class_{c_name};")
851 self.generate_init_attr
(v
, res
, mtype
)
852 v
.add
("return {res};")
857 # Add a dynamic test to ensure that the type referenced by `t` is a live type
858 fun hardening_live_type
(v
: VISITOR, t
: String)
860 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
861 v
.add
("if({t} == NULL) \{")
862 v
.add_abort
("type null")
864 v
.add
("if({t}->table_size == 0) \{")
865 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", {t}->name);")
866 v
.add_abort
("type dead")
870 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
874 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
875 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
876 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
877 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
879 redef fun display_stats
882 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
886 var tc
= self.modelbuilder
.toolcontext
887 tc
.info
("# implementation of method invocation",2)
888 var nb_invok_total
= modelbuilder
.nb_invok_by_tables
+ modelbuilder
.nb_invok_by_direct
+ modelbuilder
.nb_invok_by_inline
889 tc
.info
("total number of invocations: {nb_invok_total}",2)
890 tc
.info
("invocations by VFT send: {modelbuilder.nb_invok_by_tables} ({div(modelbuilder.nb_invok_by_tables,nb_invok_total)}%)",2)
891 tc
.info
("invocations by direct call: {modelbuilder.nb_invok_by_direct} ({div(modelbuilder.nb_invok_by_direct,nb_invok_total)}%)",2)
892 tc
.info
("invocations by inlining: {modelbuilder.nb_invok_by_inline} ({div(modelbuilder.nb_invok_by_inline,nb_invok_total)}%)",2)
897 print
"# size of subtyping tables"
898 print
"\ttotal \tholes"
901 for t
, table
in type_tables
do
902 total
+= table
.length
903 for e
in table
do if e
== null then holes
+= 1
905 print
"\t{total}\t{holes}"
907 print
"# size of resolution tables"
908 print
"\ttotal \tholes"
911 for t
, table
in resolution_tables
do
912 total
+= table
.length
913 for e
in table
do if e
== null then holes
+= 1
915 print
"\t{total}\t{holes}"
917 print
"# size of methods tables"
918 print
"\ttotal \tholes"
921 for t
, table
in method_tables
do
922 total
+= table
.length
923 for e
in table
do if e
== null then holes
+= 1
925 print
"\t{total}\t{holes}"
927 print
"# size of attributes tables"
928 print
"\ttotal \tholes"
931 for t
, table
in attr_tables
do
932 total
+= table
.length
933 for e
in table
do if e
== null then holes
+= 1
935 print
"\t{total}\t{holes}"
938 redef fun compile_nitni_structs
940 self.header
.add_decl
("struct nitni_instance \{struct instance *value;\};")
943 redef fun finalize_ffi_for_module
(mmodule
)
945 var old_module
= self.mainmodule
946 self.mainmodule
= mmodule
948 self.mainmodule
= old_module
952 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
953 class SeparateCompilerVisitor
954 super AbstractCompilerVisitor
956 redef type COMPILER: SeparateCompiler
958 redef fun adapt_signature
(m
, args
)
960 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
961 var recv
= args
.first
962 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
963 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
965 for i
in [0..msignature
.arity
[ do
966 var t
= msignature
.mparameters
[i
].mtype
967 if i
== msignature
.vararg_rank
then
970 args
[i
+1] = self.autobox
(args
[i
+1], t
)
974 redef fun autobox
(value
, mtype
)
976 if value
.mtype
== mtype
then
978 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
980 else if value
.mtype
.ctype
== "val*" then
981 return self.new_expr
("((struct instance_{mtype.c_instance_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
982 else if mtype
.ctype
== "val*" then
983 var valtype
= value
.mtype
.as(MClassType)
984 var res
= self.new_var
(mtype
)
985 if compiler
.runtime_type_analysis
!= null and not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
986 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
987 self.add
("printf(\"Dead code executed
!\\n\
"); show_backtrace(1);")
990 self.require_declaration
("BOX_{valtype.c_name}")
991 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
993 else if value
.mtype
.ctype
== "void*" and mtype
.ctype
== "void*" then
996 # Bad things will appen!
997 var res
= self.new_var
(mtype
)
998 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
999 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); show_backtrace(1);")
1004 # Return a C expression returning the runtime type structure of the value
1005 # The point of the method is to works also with primitives types.
1006 fun type_info
(value
: RuntimeVariable): String
1008 if value
.mtype
.ctype
== "val*" then
1009 return "{value}->type"
1011 compiler
.undead_types
.add
(value
.mtype
)
1012 self.require_declaration
("type_{value.mtype.c_name}")
1013 return "(&type_{value.mtype.c_name})"
1017 redef fun compile_callsite
(callsite
, args
)
1019 var rta
= compiler
.runtime_type_analysis
1020 var recv
= args
.first
.mtype
1021 if compiler
.modelbuilder
.toolcontext
.opt_direct_call_monomorph
.value
and rta
!= null then
1022 var tgs
= rta
.live_targets
(callsite
)
1023 if tgs
.length
== 1 then
1025 var mmethod
= callsite
.mproperty
1026 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), args
)
1027 var res0
= before_send
(mmethod
, args
)
1028 var res
= call
(tgs
.first
, tgs
.first
.mclassdef
.bound_mtype
, args
)
1029 if res0
!= null then
1031 self.assign
(res0
, res
)
1034 add
("\}") # close the before_send
1040 redef fun send
(mmethod
, arguments
)
1042 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
1044 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1045 # In order to shortcut the primitive, we need to find the most specific method
1046 # Howverr, because of performance (no flattening), we always work on the realmainmodule
1047 var m
= self.compiler
.mainmodule
1048 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1049 var res
= self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
1050 self.compiler
.mainmodule
= m
1054 return table_send
(mmethod
, arguments
, mmethod
.const_color
)
1057 # Handel common special cases before doing the effective method invocation
1058 # This methods handle the `==` and `!=` methods and the case of the null receiver.
1059 # Note: a { is open in the generated C, that enclose and protect the effective method invocation.
1060 # Client must not forget to close the } after them.
1062 # The value returned is the result of the common special cases.
1063 # If not null, client must compine it with the result of their own effective method invocation.
1065 # If `before_send` can shortcut the whole message sending, a dummy `if(0){`
1066 # is generated to cancel the effective method invocation that will follow
1067 # TODO: find a better approach
1068 private fun before_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1070 var res
: nullable RuntimeVariable = null
1071 var recv
= arguments
.first
1072 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
1073 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
1075 self.add
("if ({recv} == NULL) \{")
1076 if mmethod
.name
== "==" then
1077 res
= self.new_var
(bool_type
)
1078 var arg
= arguments
[1]
1079 if arg
.mcasttype
isa MNullableType then
1080 self.add
("{res} = ({arg} == NULL);")
1081 else if arg
.mcasttype
isa MNullType then
1082 self.add
("{res} = 1; /* is null */")
1084 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
1086 else if mmethod
.name
== "!=" then
1087 res
= self.new_var
(bool_type
)
1088 var arg
= arguments
[1]
1089 if arg
.mcasttype
isa MNullableType then
1090 self.add
("{res} = ({arg} != NULL);")
1091 else if arg
.mcasttype
isa MNullType then
1092 self.add
("{res} = 0; /* is null */")
1094 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
1097 self.add_abort
("Receiver is null")
1099 self.add
("\} else \{")
1103 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
1104 if res
== null then res
= self.new_var
(bool_type
)
1105 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
1106 var arg
= arguments
[1]
1107 if arg
.mcasttype
isa MNullType then
1108 if mmethod
.name
== "==" then
1109 self.add
("{res} = 0; /* arg is null but recv is not */")
1111 self.add
("{res} = 1; /* arg is null and recv is not */")
1113 self.add
("\}") # closes the null case
1114 self.add
("if (0) \{") # what follow is useless, CC will drop it
1120 private fun table_send
(mmethod
: MMethod, arguments
: Array[RuntimeVariable], const_color
: String): nullable RuntimeVariable
1122 compiler
.modelbuilder
.nb_invok_by_tables
+= 1
1123 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_tables++;")
1125 assert arguments
.length
== mmethod
.intro
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethod}. {arguments.length} arguments given.")
1126 var recv
= arguments
.first
1128 var res0
= before_send
(mmethod
, arguments
)
1130 var res
: nullable RuntimeVariable
1131 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
1132 var ret
= msignature
.return_mtype
1133 if mmethod
.is_new
then
1134 ret
= arguments
.first
.mtype
1135 res
= self.new_var
(ret
)
1136 else if ret
== null then
1139 res
= self.new_var
(ret
)
1142 var s
= new FlatBuffer
1143 var ss
= new FlatBuffer
1147 for i
in [0..msignature
.arity
[ do
1148 var a
= arguments
[i
+1]
1149 var t
= msignature
.mparameters
[i
].mtype
1150 if i
== msignature
.vararg_rank
then
1151 t
= arguments
[i
+1].mcasttype
1153 s
.append
(", {t.ctype}")
1154 a
= self.autobox
(a
, t
)
1160 if ret
== null then r
= "void" else r
= ret
.ctype
1161 self.require_declaration
(const_color
)
1162 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1165 self.add
("{res} = {call};")
1170 if res0
!= null then
1176 self.add
("\}") # closes the null case
1181 redef fun call
(mmethoddef
, recvtype
, arguments
)
1183 assert arguments
.length
== mmethoddef
.msignature
.arity
+ 1 else debug
("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
1185 var res
: nullable RuntimeVariable
1186 var ret
= mmethoddef
.msignature
.return_mtype
1187 if mmethoddef
.mproperty
.is_new
then
1188 ret
= arguments
.first
.mtype
1189 res
= self.new_var
(ret
)
1190 else if ret
== null then
1193 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1194 res
= self.new_var
(ret
)
1197 if (mmethoddef
.is_intern
and not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
) or
1198 (compiler
.modelbuilder
.toolcontext
.opt_inline_some_methods
.value
and mmethoddef
.can_inline
(self)) then
1199 compiler
.modelbuilder
.nb_invok_by_inline
+= 1
1200 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_inline++;")
1201 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1202 frame
.returnlabel
= self.get_name
("RET_LABEL")
1203 frame
.returnvar
= res
1204 var old_frame
= self.frame
1206 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) on {arguments.first.inspect} */")
1207 mmethoddef
.compile_inside_to_c
(self, arguments
)
1208 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1210 self.frame
= old_frame
1213 compiler
.modelbuilder
.nb_invok_by_direct
+= 1
1214 if compiler
.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then add
("count_invoke_by_direct++;")
1217 self.adapt_signature
(mmethoddef
, arguments
)
1219 self.require_declaration
(mmethoddef
.c_name
)
1221 self.add
("{mmethoddef.c_name}({arguments.join(", ")}); /* Direct call {mmethoddef} on {arguments.first.inspect}*/")
1224 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1230 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1232 if arguments
.first
.mcasttype
.ctype
!= "val*" then
1233 # In order to shortcut the primitive, we need to find the most specific method
1234 # However, because of performance (no flattening), we always work on the realmainmodule
1235 var main
= self.compiler
.mainmodule
1236 self.compiler
.mainmodule
= self.compiler
.realmainmodule
1237 var res
= self.monomorphic_super_send
(m
, recvtype
, arguments
)
1238 self.compiler
.mainmodule
= main
1241 return table_send
(m
.mproperty
, arguments
, m
.const_color
)
1244 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1246 # A vararg must be stored into an new array
1247 # The trick is that the dymaic type of the array may depends on the receiver
1248 # of the method (ie recv) if the static type is unresolved
1249 # This is more complex than usual because the unresolved type must not be resolved
1250 # with the current receiver (ie self).
1251 # Therefore to isolate the resolution from self, a local Frame is created.
1252 # One can see this implementation as an inlined method of the receiver whose only
1253 # job is to allocate the array
1254 var old_frame
= self.frame
1255 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1257 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1258 var res
= self.array_instance
(varargs
, elttype
)
1259 self.frame
= old_frame
1263 redef fun isset_attribute
(a
, recv
)
1265 self.check_recv_notnull
(recv
)
1266 var res
= self.new_var
(bool_type
)
1268 # What is the declared type of the attribute?
1269 var mtype
= a
.intro
.static_mtype
.as(not null)
1270 var intromclassdef
= a
.intro
.mclassdef
1271 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1273 if mtype
isa MNullableType then
1274 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1278 self.require_declaration
(a
.const_color
)
1279 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1280 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1283 if mtype
.ctype
== "val*" then
1284 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1286 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1292 redef fun read_attribute
(a
, recv
)
1294 self.check_recv_notnull
(recv
)
1296 # What is the declared type of the attribute?
1297 var ret
= a
.intro
.static_mtype
.as(not null)
1298 var intromclassdef
= a
.intro
.mclassdef
1299 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1301 self.require_declaration
(a
.const_color
)
1302 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1303 # Get the attribute or a box (ie. always a val*)
1304 var cret
= self.object_type
.as_nullable
1305 var res
= self.new_var
(cret
)
1308 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1310 # Check for Uninitialized attribute
1311 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1312 self.add
("if (unlikely({res} == NULL)) \{")
1313 self.add_abort
("Uninitialized attribute {a.name}")
1317 # Return the attribute or its unboxed version
1318 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1319 return self.autobox
(res
, ret
)
1321 var res
= self.new_var
(ret
)
1322 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1324 # Check for Uninitialized attribute
1325 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1326 self.add
("if (unlikely({res} == NULL)) \{")
1327 self.add_abort
("Uninitialized attribute {a.name}")
1335 redef fun write_attribute
(a
, recv
, value
)
1337 self.check_recv_notnull
(recv
)
1339 # What is the declared type of the attribute?
1340 var mtype
= a
.intro
.static_mtype
.as(not null)
1341 var intromclassdef
= a
.intro
.mclassdef
1342 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1344 # Adapt the value to the declared type
1345 value
= self.autobox
(value
, mtype
)
1347 self.require_declaration
(a
.const_color
)
1348 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1349 var attr
= "{recv}->attrs[{a.const_color}]"
1350 if mtype
.ctype
!= "val*" then
1351 assert mtype
isa MClassType
1352 # The attribute is primitive, thus we store it in a box
1353 # The trick is to create the box the first time then resuse the box
1354 self.add
("if ({attr} != NULL) \{")
1355 self.add
("((struct instance_{mtype.c_instance_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1356 self.add
("\} else \{")
1357 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1358 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1361 # The attribute is not primitive, thus store it direclty
1362 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1365 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1369 # Check that mtype is a live open type
1370 fun hardening_live_open_type
(mtype
: MType)
1372 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1373 self.require_declaration
(mtype
.const_color
)
1374 var col
= mtype
.const_color
1375 self.add
("if({col} == -1) \{")
1376 self.add
("fprintf(stderr, \"Resolution of a dead open
type: %s\\n\
", \"{mtype.to_s.escape_to_c}\
");")
1377 self.add_abort
("open type dead")
1381 # Check that mtype it a pointer to a live cast type
1382 fun hardening_cast_type
(t
: String)
1384 if not compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
1385 add
("if({t} == NULL) \{")
1386 add_abort
("cast type null")
1388 add
("if({t}->id == -1 || {t}->color == -1) \{")
1389 add
("fprintf(stderr, \"Try to cast on a dead cast
type: %s\\n\
", {t}->name);")
1390 add_abort
("cast type dead")
1394 redef fun init_instance
(mtype
)
1396 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1397 var compiler
= self.compiler
1398 if mtype
isa MGenericType and mtype
.need_anchor
then
1399 hardening_live_open_type
(mtype
)
1400 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1401 var recv
= self.frame
.arguments
.first
1402 var recv_type_info
= self.type_info
(recv
)
1403 self.require_declaration
(mtype
.const_color
)
1404 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1405 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
)
1407 return self.new_expr
("NEW_{mtype.mclass.c_name}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1410 compiler
.undead_types
.add
(mtype
)
1411 self.require_declaration
("type_{mtype.c_name}")
1412 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1415 redef fun type_test
(value
, mtype
, tag
)
1417 self.add
("/* {value.inspect} isa {mtype} */")
1418 var compiler
= self.compiler
1420 var recv
= self.frame
.arguments
.first
1421 var recv_type_info
= self.type_info
(recv
)
1423 var res
= self.new_var
(bool_type
)
1425 var cltype
= self.get_name
("cltype")
1426 self.add_decl
("int {cltype};")
1427 var idtype
= self.get_name
("idtype")
1428 self.add_decl
("int {idtype};")
1430 var maybe_null
= self.maybe_null
(value
)
1431 var accept_null
= "0"
1433 if ntype
isa MNullableType then
1438 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1439 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1440 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1441 self.compiler
.count_type_test_skipped
[tag
] += 1
1442 self.add
("count_type_test_skipped_{tag}++;")
1447 if ntype
.need_anchor
then
1448 var type_struct
= self.get_name
("type_struct")
1449 self.add_decl
("const struct type* {type_struct};")
1451 # Either with resolution_table with a direct resolution
1452 hardening_live_open_type
(mtype
)
1453 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1454 self.require_declaration
(mtype
.const_color
)
1455 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1456 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})];")
1458 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.const_color}];")
1460 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1461 self.compiler
.count_type_test_unresolved
[tag
] += 1
1462 self.add
("count_type_test_unresolved_{tag}++;")
1464 hardening_cast_type
(type_struct
)
1465 self.add
("{cltype} = {type_struct}->color;")
1466 self.add
("{idtype} = {type_struct}->id;")
1467 if maybe_null
and accept_null
== "0" then
1468 var is_nullable
= self.get_name
("is_nullable")
1469 self.add_decl
("short int {is_nullable};")
1470 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1471 accept_null
= is_nullable
.to_s
1473 else if ntype
isa MClassType then
1474 compiler
.undead_types
.add
(mtype
)
1475 self.require_declaration
("type_{mtype.c_name}")
1476 hardening_cast_type
("(&type_{mtype.c_name})")
1477 self.add
("{cltype} = type_{mtype.c_name}.color;")
1478 self.add
("{idtype} = type_{mtype.c_name}.id;")
1479 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1480 self.compiler
.count_type_test_resolved
[tag
] += 1
1481 self.add
("count_type_test_resolved_{tag}++;")
1484 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); show_backtrace(1);")
1487 # check color is in table
1489 self.add
("if({value} == NULL) \{")
1490 self.add
("{res} = {accept_null};")
1491 self.add
("\} else \{")
1493 var value_type_info
= self.type_info
(value
)
1494 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1495 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1497 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1498 self.add
("{res} = 0;")
1499 self.add
("\} else \{")
1500 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1509 redef fun is_same_type_test
(value1
, value2
)
1511 var res
= self.new_var
(bool_type
)
1512 # Swap values to be symetric
1513 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1518 if value1
.mtype
.ctype
!= "val*" then
1519 if value2
.mtype
== value1
.mtype
then
1520 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1521 else if value2
.mtype
.ctype
!= "val*" then
1522 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1524 var mtype1
= value1
.mtype
.as(MClassType)
1525 self.require_declaration
("class_{mtype1.c_name}")
1526 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1529 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1534 redef fun class_name_string
(value
)
1536 var res
= self.get_name
("var_class_name")
1537 self.add_decl
("const char* {res};")
1538 if value
.mtype
.ctype
== "val*" then
1539 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1540 else if value
.mtype
isa MClassType and value
.mtype
.as(MClassType).mclass
.kind
== extern_kind
then
1541 self.add
"{res} = \"{value.mtype.as(MClassType).mclass}\
";"
1543 self.require_declaration
("type_{value.mtype.c_name}")
1544 self.add
"{res} = type_{value.mtype.c_name}.name;"
1549 redef fun equal_test
(value1
, value2
)
1551 var res
= self.new_var
(bool_type
)
1552 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1557 if value1
.mtype
.ctype
!= "val*" then
1558 if value2
.mtype
== value1
.mtype
then
1559 self.add
("{res} = {value1} == {value2};")
1560 else if value2
.mtype
.ctype
!= "val*" then
1561 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1563 var mtype1
= value1
.mtype
.as(MClassType)
1564 self.require_declaration
("class_{mtype1.c_name}")
1565 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1566 self.add
("if ({res}) \{")
1567 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1572 var maybe_null
= true
1573 var test
= new Array[String]
1574 var t1
= value1
.mcasttype
1575 if t1
isa MNullableType then
1576 test
.add
("{value1} != NULL")
1581 var t2
= value2
.mcasttype
1582 if t2
isa MNullableType then
1583 test
.add
("{value2} != NULL")
1589 var incompatible
= false
1591 if t1
.ctype
!= "val*" then
1594 # No need to compare class
1595 else if t2
.ctype
!= "val*" then
1597 else if can_be_primitive
(value2
) then
1598 test
.add
("{value1}->class == {value2}->class")
1602 else if t2
.ctype
!= "val*" then
1604 if can_be_primitive
(value1
) then
1605 test
.add
("{value1}->class == {value2}->class")
1613 if incompatible
then
1615 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1618 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1622 if primitive
!= null then
1623 test
.add
("((struct instance_{primitive.c_instance_name}*){value1})->value == ((struct instance_{primitive.c_instance_name}*){value2})->value")
1624 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1625 test
.add
("{value1}->class == {value2}->class")
1626 var s
= new Array[String]
1627 for t
, v
in self.compiler
.box_kinds
do
1628 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_instance_name}*){value1})->value == ((struct instance_{t.c_instance_name}*){value2})->value)"
1630 test
.add
("({s.join(" || ")})")
1632 self.add
("{res} = {value1} == {value2};")
1635 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1639 fun can_be_primitive
(value
: RuntimeVariable): Bool
1641 var t
= value
.mcasttype
1642 if t
isa MNullableType then t
= t
.mtype
1643 if not t
isa MClassType then return false
1644 var k
= t
.mclass
.kind
1645 return k
== interface_kind
or t
.ctype
!= "val*"
1648 fun maybe_null
(value
: RuntimeVariable): Bool
1650 var t
= value
.mcasttype
1651 return t
isa MNullableType or t
isa MNullType
1654 redef fun array_instance
(array
, elttype
)
1656 var nclass
= self.get_class
("NativeArray")
1657 var arrayclass
= self.get_class
("Array")
1658 var arraytype
= arrayclass
.get_mtype
([elttype
])
1659 var res
= self.init_instance
(arraytype
)
1660 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1661 var length
= self.int_instance
(array
.length
)
1662 var nat
= native_array_instance
(elttype
, length
)
1663 for i
in [0..array
.length
[ do
1664 var r
= self.autobox
(array
[i
], self.object_type
)
1665 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1667 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1672 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1674 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1675 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1676 assert mtype
isa MGenericType
1677 var compiler
= self.compiler
1678 if mtype
.need_anchor
then
1679 hardening_live_open_type
(mtype
)
1680 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1681 var recv
= self.frame
.arguments
.first
1682 var recv_type_info
= self.type_info
(recv
)
1683 self.require_declaration
(mtype
.const_color
)
1684 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1685 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
)
1687 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1690 compiler
.undead_types
.add
(mtype
)
1691 self.require_declaration
("type_{mtype.c_name}")
1692 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1695 redef fun native_array_def
(pname
, ret_type
, arguments
)
1697 var elttype
= arguments
.first
.mtype
1698 var nclass
= self.get_class
("NativeArray")
1699 var recv
= "((struct instance_{nclass.c_instance_name}*){arguments[0]})->values"
1700 if pname
== "[]" then
1701 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1703 else if pname
== "[]=" then
1704 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1706 else if pname
== "length" then
1707 self.ret
(self.new_expr
("((struct instance_{nclass.c_instance_name}*){arguments[0]})->length", ret_type
.as(not null)))
1709 else if pname
== "copy_to" then
1710 var recv1
= "((struct instance_{nclass.c_instance_name}*){arguments[1]})->values"
1711 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1716 redef fun calloc_array
(ret_type
, arguments
)
1718 var mclass
= self.get_class
("ArrayCapable")
1719 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1720 var res
= self.native_array_instance
(ft
, arguments
[1])
1724 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1725 assert mtype
.need_anchor
1726 var compiler
= self.compiler
1727 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1728 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1730 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1734 redef class MMethodDef
1735 fun separate_runtime_function
: AbstractRuntimeFunction
1737 var res
= self.separate_runtime_function_cache
1739 res
= new SeparateRuntimeFunction(self)
1740 self.separate_runtime_function_cache
= res
1744 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1746 fun virtual_runtime_function
: AbstractRuntimeFunction
1748 var res
= self.virtual_runtime_function_cache
1750 res
= new VirtualRuntimeFunction(self)
1751 self.virtual_runtime_function_cache
= res
1755 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1758 # The C function associated to a methoddef separately compiled
1759 class SeparateRuntimeFunction
1760 super AbstractRuntimeFunction
1762 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1764 redef fun to_s
do return self.mmethoddef
.to_s
1766 redef fun compile_to_c
(compiler
)
1768 var mmethoddef
= self.mmethoddef
1770 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1771 var v
= compiler
.new_visitor
1772 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1773 var arguments
= new Array[RuntimeVariable]
1774 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1777 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1779 var sig
= new FlatBuffer
1780 var comment
= new FlatBuffer
1781 var ret
= msignature
.return_mtype
1783 sig
.append
("{ret.ctype} ")
1784 else if mmethoddef
.mproperty
.is_new
then
1786 sig
.append
("{ret.ctype} ")
1790 sig
.append
(self.c_name
)
1791 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1792 comment
.append
("({selfvar}: {selfvar.mtype}")
1793 arguments
.add
(selfvar
)
1794 for i
in [0..msignature
.arity
[ do
1795 var mtype
= msignature
.mparameters
[i
].mtype
1796 if i
== msignature
.vararg_rank
then
1797 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1799 comment
.append
(", {mtype}")
1800 sig
.append
(", {mtype.ctype} p{i}")
1801 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1802 arguments
.add
(argvar
)
1807 comment
.append
(": {ret}")
1809 compiler
.provide_declaration
(self.c_name
, "{sig};")
1811 v
.add_decl
("/* method {self} for {comment} */")
1812 v
.add_decl
("{sig} \{")
1814 frame
.returnvar
= v
.new_var
(ret
)
1816 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1818 if recv
!= arguments
.first
.mtype
then
1819 #print "{self} {recv} {arguments.first}"
1821 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1823 v
.add
("{frame.returnlabel.as(not null)}:;")
1825 v
.add
("return {frame.returnvar.as(not null)};")
1828 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})"
1832 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1833 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1834 class VirtualRuntimeFunction
1835 super AbstractRuntimeFunction
1837 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1839 redef fun to_s
do return self.mmethoddef
.to_s
1841 redef fun compile_to_c
(compiler
)
1843 var mmethoddef
= self.mmethoddef
1845 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1846 var v
= compiler
.new_visitor
1847 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1848 var arguments
= new Array[RuntimeVariable]
1849 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1852 var sig
= new FlatBuffer
1853 var comment
= new FlatBuffer
1855 # Because the function is virtual, the signature must match the one of the original class
1856 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1857 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1858 var ret
= msignature
.return_mtype
1860 sig
.append
("{ret.ctype} ")
1861 else if mmethoddef
.mproperty
.is_new
then
1863 sig
.append
("{ret.ctype} ")
1867 sig
.append
(self.c_name
)
1868 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1869 comment
.append
("({selfvar}: {selfvar.mtype}")
1870 arguments
.add
(selfvar
)
1871 for i
in [0..msignature
.arity
[ do
1872 var mtype
= msignature
.mparameters
[i
].mtype
1873 if i
== msignature
.vararg_rank
then
1874 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1876 comment
.append
(", {mtype}")
1877 sig
.append
(", {mtype.ctype} p{i}")
1878 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1879 arguments
.add
(argvar
)
1884 comment
.append
(": {ret}")
1886 compiler
.provide_declaration
(self.c_name
, "{sig};")
1888 v
.add_decl
("/* method {self} for {comment} */")
1889 v
.add_decl
("{sig} \{")
1891 frame
.returnvar
= v
.new_var
(ret
)
1893 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1895 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1897 assert subret
!= null
1898 v
.assign
(frame
.returnvar
.as(not null), subret
)
1901 v
.add
("{frame.returnlabel.as(not null)}:;")
1903 v
.add
("return {frame.returnvar.as(not null)};")
1906 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})"
1910 redef fun call
(v
, arguments
) do abort
1914 fun const_color
: String do return "COLOR_{c_name}"
1916 # C name of the instance type to use
1917 fun c_instance_name
: String do return c_name
1920 redef class MClassType
1921 redef fun c_instance_name
do return mclass
.c_instance_name
1925 # Extern classes use the C instance of kernel::Pointer
1926 fun c_instance_name
: String
1928 if kind
== extern_kind
then
1929 return "kernel__Pointer"
1934 redef class MProperty
1935 fun const_color
: String do return "COLOR_{c_name}"
1938 redef class MPropDef
1939 fun const_color
: String do return "COLOR_{c_name}"