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", "--inline-coloring-numbers")
34 # --use-naive-coloring
35 var opt_bm_typing
: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
36 # --use-mod-perfect-hashing
37 var opt_phmod_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
38 # --use-and-perfect-hashing
39 var opt_phand_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
41 var opt_tables_metrics
: OptionBool = new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
46 self.option_context
.add_option
(self.opt_separate
)
47 self.option_context
.add_option
(self.opt_no_inline_intern
)
48 self.option_context
.add_option
(self.opt_no_union_attribute
)
49 self.option_context
.add_option
(self.opt_no_shortcut_equate
)
50 self.option_context
.add_option
(self.opt_inline_coloring_numbers
)
51 self.option_context
.add_option
(self.opt_bm_typing
)
52 self.option_context
.add_option
(self.opt_phmod_typing
)
53 self.option_context
.add_option
(self.opt_phand_typing
)
54 self.option_context
.add_option
(self.opt_tables_metrics
)
58 redef class ModelBuilder
59 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: RapidTypeAnalysis)
62 self.toolcontext
.info
("*** COMPILING TO C ***", 1)
64 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
65 compiler
.compile_header
67 # compile class structures
68 for m
in mainmodule
.in_importation
.greaters
do
69 for mclass
in m
.intro_mclasses
do
70 compiler
.compile_class_to_c
(mclass
)
74 # The main function of the C
76 compiler
.compile_main_function
79 for m
in mainmodule
.in_importation
.greaters
do
81 compiler
.compile_module_to_c
(m
)
84 # compile live & cast type structures
86 var mtypes
= compiler
.do_type_coloring
88 compiler
.compile_type_to_c
(t
)
91 compiler
.display_stats
93 write_and_make
(compiler
)
97 # Singleton that store the knowledge about the separate compilation process
98 class SeparateCompiler
99 super AbstractCompiler
101 # The result of the RTA (used to know live types and methods)
102 var runtime_type_analysis
: RapidTypeAnalysis
104 private var undead_types
: Set[MType] = new HashSet[MType]
105 private var partial_types
: Set[MType] = new HashSet[MType]
106 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
108 private var type_layout
: nullable Layout[MType]
109 private var resolution_layout
: nullable Layout[MType]
110 protected var method_layout
: nullable Layout[MMethod]
111 protected var attr_layout
: nullable Layout[MAttribute]
113 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: RapidTypeAnalysis) do
114 super(mainmodule
, mmbuilder
)
115 self.header
= new_visitor
116 self.runtime_type_analysis
= runtime_type_analysis
117 self.do_property_coloring
118 self.compile_box_kinds
121 redef fun compile_header_structs
do
122 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
123 self.compile_header_attribute_structs
124 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
126 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
127 self.header
.add_decl
("struct type \{ int id; const char *name; int color; short int is_nullable; struct types *resolution_table; int table_size; int type_table[1]; \}; /* general C type representing a Nit type. */")
129 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
130 self.header
.add_decl
("struct types \{ int mask; struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
132 self.header
.add_decl
("struct types \{ struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
135 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
136 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
137 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
138 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
141 self.header
.add_decl
("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
144 fun compile_header_attribute_structs
146 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
147 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
149 self.header
.add_decl
("typedef union \{")
150 self.header
.add_decl
("void* val;")
151 for c
, v
in self.box_kinds
do
152 var t
= c
.mclass_type
153 self.header
.add_decl
("{t.ctype} {t.ctypename};")
155 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
159 fun compile_box_kinds
161 # Collect all bas box class
162 # FIXME: this is not completely fine with a separate compilation scheme
163 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
164 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
165 if classes
== null then continue
166 assert classes
.length
== 1 else print classes
.join
(", ")
167 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
171 var box_kinds
= new HashMap[MClass, Int]
173 fun box_kind_of
(mclass
: MClass): Int
175 if mclass
.mclass_type
.ctype
== "val*" then
177 else if mclass
.kind
== extern_kind
then
178 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
180 return self.box_kinds
[mclass
]
185 fun compile_color_consts
(colors
: Map[Object, Int]) do
186 for m
, c
in colors
do
187 if color_consts_done
.has
(m
) then continue
188 if m
isa MProperty then
189 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
190 self.header
.add_decl
("#define {m.const_color} {c}")
192 self.header
.add_decl
("extern const int {m.const_color};")
193 self.header
.add
("const int {m.const_color} = {c};")
195 else if m
isa MType then
196 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
197 self.header
.add_decl
("#define {m.const_color} {c}")
199 self.header
.add_decl
("extern const int {m.const_color};")
200 self.header
.add
("const int {m.const_color} = {c};")
203 color_consts_done
.add
(m
)
207 private var color_consts_done
= new HashSet[Object]
209 # colorize classe properties
210 fun do_property_coloring
do
211 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
214 var method_layout_builder
: PropertyLayoutBuilder[MMethod]
215 var attribute_layout_builder
: PropertyLayoutBuilder[MAttribute]
216 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
217 method_layout_builder
= new MMethodBMizer(self.mainmodule
)
218 attribute_layout_builder
= new MAttributeBMizer(self.mainmodule
)
219 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
220 method_layout_builder
= new MMethodHasher(new PHModOperator, self.mainmodule
)
221 attribute_layout_builder
= new MAttributeHasher(new PHModOperator, self.mainmodule
)
222 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
223 method_layout_builder
= new MMethodHasher(new PHAndOperator, self.mainmodule
)
224 attribute_layout_builder
= new MAttributeHasher(new PHAndOperator, self.mainmodule
)
226 method_layout_builder
= new MMethodColorer(self.mainmodule
)
227 attribute_layout_builder
= new MAttributeColorer(self.mainmodule
)
231 var method_layout
= method_layout_builder
.build_layout
(mclasses
)
232 self.method_tables
= build_method_tables
(mclasses
, method_layout
)
233 self.compile_color_consts
(method_layout
.pos
)
234 self.method_layout
= method_layout
236 # attributes coloration
237 var attr_layout
= attribute_layout_builder
.build_layout
(mclasses
)
238 self.attr_tables
= build_attr_tables
(mclasses
, attr_layout
)
239 self.compile_color_consts
(attr_layout
.pos
)
240 self.attr_layout
= attr_layout
243 fun build_method_tables
(mclasses
: Set[MClass], layout
: Layout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
244 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
245 for mclass
in mclasses
do
246 var table
= new Array[nullable MPropDef]
247 # first, fill table from parents by reverse linearization order
248 var parents
= self.mainmodule
.super_mclasses
(mclass
)
249 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
251 for mproperty
in self.mainmodule
.properties
(parent
) do
252 if not mproperty
isa MMethod then continue
253 var color
= layout
.pos
[mproperty
]
254 if table
.length
<= color
then
255 for i
in [table
.length
.. color
[ do
259 for mpropdef
in mproperty
.mpropdefs
do
260 if mpropdef
.mclassdef
.mclass
== parent
then
261 table
[color
] = mpropdef
267 # then override with local properties
268 for mproperty
in self.mainmodule
.properties
(mclass
) do
269 if not mproperty
isa MMethod then continue
270 var color
= layout
.pos
[mproperty
]
271 if table
.length
<= color
then
272 for i
in [table
.length
.. color
[ do
276 for mpropdef
in mproperty
.mpropdefs
do
277 if mpropdef
.mclassdef
.mclass
== mclass
then
278 table
[color
] = mpropdef
282 tables
[mclass
] = table
287 fun build_attr_tables
(mclasses
: Set[MClass], layout
: Layout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
288 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
289 for mclass
in mclasses
do
290 var table
= new Array[nullable MPropDef]
291 # first, fill table from parents by reverse linearization order
292 var parents
= self.mainmodule
.super_mclasses
(mclass
)
293 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
295 for mproperty
in self.mainmodule
.properties
(parent
) do
296 if not mproperty
isa MAttribute then continue
297 var color
= layout
.pos
[mproperty
]
298 if table
.length
<= color
then
299 for i
in [table
.length
.. color
[ do
303 for mpropdef
in mproperty
.mpropdefs
do
304 if mpropdef
.mclassdef
.mclass
== parent
then
305 table
[color
] = mpropdef
311 # then override with local properties
312 for mproperty
in self.mainmodule
.properties
(mclass
) do
313 if not mproperty
isa MAttribute then continue
314 var color
= layout
.pos
[mproperty
]
315 if table
.length
<= color
then
316 for i
in [table
.length
.. color
[ do
320 for mpropdef
in mproperty
.mpropdefs
do
321 if mpropdef
.mclassdef
.mclass
== mclass
then
322 table
[color
] = mpropdef
326 tables
[mclass
] = table
331 # colorize live types of the program
332 private fun do_type_coloring
: Set[MType] do
333 var mtypes
= new HashSet[MType]
334 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
335 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
336 mtypes
.add_all
(self.undead_types
)
337 for c
in self.box_kinds
.keys
do
338 mtypes
.add
(c
.mclass_type
)
341 for mtype
in mtypes
do
342 retieve_live_partial_types
(mtype
)
344 mtypes
.add_all
(self.partial_types
)
347 var layout_builder
: TypingLayoutBuilder[MType]
348 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
349 layout_builder
= new MTypeBMizer(self.mainmodule
)
350 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
351 layout_builder
= new MTypeHasher(new PHModOperator, self.mainmodule
)
352 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
353 layout_builder
= new MTypeHasher(new PHAndOperator, self.mainmodule
)
355 layout_builder
= new MTypeColorer(self.mainmodule
)
359 self.type_layout
= layout_builder
.build_layout
(mtypes
)
360 self.type_tables
= self.build_type_tables
(mtypes
)
362 # VT and FT are stored with other unresolved types in the big resolution_tables
363 self.compile_resolution_tables
(mtypes
)
369 fun build_type_tables
(mtypes
: Set[MType]): Map[MType, Array[nullable MType]] do
370 var tables
= new HashMap[MType, Array[nullable MType]]
371 var layout
= self.type_layout
372 for mtype
in mtypes
do
373 var table
= new Array[nullable MType]
374 var supers
= new HashSet[MType]
375 supers
.add_all
(self.mainmodule
.super_mtypes
(mtype
, mtypes
))
379 if layout
isa PHLayout[MType, MType] then
380 color
= layout
.hashes
[mtype
][sup
]
382 color
= layout
.pos
[sup
]
384 if table
.length
<= color
then
385 for i
in [table
.length
.. color
[ do
391 tables
[mtype
] = table
396 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
397 # resolution_tables is used to perform a type resolution at runtime in O(1)
399 # During the visit of the body of classes, live_unresolved_types are collected
401 # Collect all live_unresolved_types (visited in the body of classes)
403 # Determinate fo each livetype what are its possible requested anchored types
404 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
405 for mtype
in self.runtime_type_analysis
.live_types
do
406 var set
= new HashSet[MType]
407 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
408 if self.live_unresolved_types
.has_key
(cd
) then
409 set
.add_all
(self.live_unresolved_types
[cd
])
412 mtype2unresolved
[mtype
] = set
415 # Compute the table layout with the prefered method
416 var resolution_builder
: ResolutionLayoutBuilder
417 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
418 resolution_builder
= new ResolutionBMizer
419 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
420 resolution_builder
= new ResolutionHasher(new PHModOperator)
421 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
422 resolution_builder
= new ResolutionHasher(new PHAndOperator)
424 resolution_builder
= new ResolutionColorer
426 self.resolution_layout
= resolution_builder
.build_layout
(mtype2unresolved
)
427 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
429 # Compile a C constant for each collected unresolved type.
430 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
431 var all_unresolved
= new HashSet[MType]
432 for t
in self.live_unresolved_types
.values
do
433 all_unresolved
.add_all
(t
)
435 var all_unresolved_types_colors
= new HashMap[MType, Int]
436 for t
in all_unresolved
do
437 if self.resolution_layout
.pos
.has_key
(t
) then
438 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
440 all_unresolved_types_colors
[t
] = -1
443 self.compile_color_consts
(all_unresolved_types_colors
)
446 #for k, v in unresolved_types_tables.as(not null) do
447 # print "{k}: {v.join(", ")}"
452 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
453 var tables
= new HashMap[MClassType, Array[nullable MType]]
454 var layout
= self.resolution_layout
455 for mclasstype
, mtypes
in elements
do
456 var table
= new Array[nullable MType]
457 for mtype
in mtypes
do
459 if layout
isa PHLayout[MClassType, MType] then
460 color
= layout
.hashes
[mclasstype
][mtype
]
462 color
= layout
.pos
[mtype
]
464 if table
.length
<= color
then
465 for i
in [table
.length
.. color
[ do
471 tables
[mclasstype
] = table
476 fun retieve_live_partial_types
(mtype
: MType) do
477 # add formal types arguments to mtypes
478 if mtype
isa MGenericType then
479 for ft
in mtype
.arguments
do
480 if ft
.need_anchor
then
481 print
("Why do we need anchor here ?")
484 self.partial_types
.add
(ft
)
485 retieve_live_partial_types
(ft
)
488 var mclass_type
: MClassType
489 if mtype
isa MNullableType then
490 mclass_type
= mtype
.mtype
.as(MClassType)
492 mclass_type
= mtype
.as(MClassType)
495 # add virtual types to mtypes
496 for vt
in self.mainmodule
.properties
(mclass_type
.mclass
) do
497 if vt
isa MVirtualTypeProp then
498 var anchored
= vt
.mvirtualtype
.lookup_bound
(self.mainmodule
, mclass_type
).anchor_to
(self.mainmodule
, mclass_type
)
499 self.partial_types
.add
(anchored
)
504 # Separately compile all the method definitions of the module
505 fun compile_module_to_c
(mmodule
: MModule)
507 var old_module
= self.mainmodule
508 self.mainmodule
= mmodule
509 for cd
in mmodule
.mclassdefs
do
510 for pd
in cd
.mpropdefs
do
511 if not pd
isa MMethodDef then continue
512 #print "compile {pd} @ {cd} @ {mmodule}"
513 var r
= new SeparateRuntimeFunction(pd
)
515 if true or cd
.bound_mtype
.ctype
!= "val*" then
516 var r2
= new VirtualRuntimeFunction(pd
)
517 r2
.compile_to_c
(self)
521 self.mainmodule
= old_module
524 # Globaly compile the type structure of a live type
525 fun compile_type_to_c
(mtype
: MType)
527 var c_name
= mtype
.c_name
528 var v
= new SeparateCompilerVisitor(self)
529 v
.add_decl
("/* runtime type {mtype} */")
531 # extern const struct type_X
532 self.header
.add_decl
("extern const struct type_{c_name} type_{c_name};")
533 self.header
.add_decl
("struct type_{c_name} \{")
534 self.header
.add_decl
("int id;")
535 self.header
.add_decl
("const char *name;")
536 self.header
.add_decl
("int color;")
537 self.header
.add_decl
("short int is_nullable;")
538 self.header
.add_decl
("const struct types *resolution_table;")
539 self.header
.add_decl
("int table_size;")
540 self.header
.add_decl
("int type_table[{self.type_tables[mtype].length}];")
541 self.header
.add_decl
("\};")
543 # const struct type_X
544 v
.add_decl
("const struct type_{c_name} type_{c_name} = \{")
545 v
.add_decl
("{self.type_layout.ids[mtype]},")
546 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
547 var layout
= self.type_layout
548 if layout
isa PHLayout[MType, MType] then
549 v
.add_decl
("{layout.masks[mtype]},")
551 v
.add_decl
("{layout.pos[mtype]},")
553 if mtype
isa MNullableType then
558 if compile_type_resolution_table
(mtype
) then
559 v
.add_decl
("(struct types*) &resolution_table_{c_name},")
563 v
.add_decl
("{self.type_tables[mtype].length},")
565 for stype
in self.type_tables
[mtype
] do
566 if stype
== null then
567 v
.add_decl
("-1, /* empty */")
569 v
.add_decl
("{self.type_layout.ids[stype]}, /* {stype} */")
576 fun compile_type_resolution_table
(mtype
: MType): Bool do
578 var mclass_type
: MClassType
579 if mtype
isa MNullableType then
580 mclass_type
= mtype
.mtype
.as(MClassType)
582 mclass_type
= mtype
.as(MClassType)
584 if not self.resolution_tables
.has_key
(mclass_type
) then return false
586 var layout
= self.resolution_layout
588 # extern const struct resolution_table_X resolution_table_X
589 self.header
.add_decl
("extern const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name};")
590 self.header
.add_decl
("struct resolution_table_{mtype.c_name} \{")
591 if layout
isa PHLayout[MClassType, MType] then
592 self.header
.add_decl
("int mask;")
594 self.header
.add_decl
("struct type *types[{self.resolution_tables[mclass_type].length}];")
595 self.header
.add_decl
("\};")
597 # const struct fts_table_X fts_table_X
599 v
.add_decl
("const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name} = \{")
600 if layout
isa PHLayout[MClassType, MType] then
601 v
.add_decl
("{layout.masks[mclass_type]},")
604 for t
in self.resolution_tables
[mclass_type
] do
606 v
.add_decl
("NULL, /* empty */")
608 # The table stores the result of the type resolution
609 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
610 # the value stored is tv.
611 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
612 # FIXME: What typeids means here? How can a tv not be live?
613 if self.type_layout
.ids
.has_key
(tv
) then
614 v
.add_decl
("(struct type*)&type_{tv.c_name}, /* {t}: {tv} */")
616 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
625 # Globally compile the table of the class mclass
626 # In a link-time optimisation compiler, tables are globally computed
627 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
628 fun compile_class_to_c
(mclass
: MClass)
630 var mtype
= mclass
.intro
.bound_mtype
631 var c_name
= mclass
.c_name
633 var vft
= self.method_tables
[mclass
]
634 var attrs
= self.attr_tables
[mclass
]
637 v
.add_decl
("/* runtime class {c_name} */")
639 self.header
.add_decl
("struct class_{c_name} \{")
640 self.header
.add_decl
("int box_kind;")
641 self.header
.add_decl
("nitmethod_t vft[{vft.length}];")
642 self.header
.add_decl
("\};")
645 self.header
.add_decl
("extern const struct class_{c_name} class_{c_name};")
646 v
.add_decl
("const struct class_{c_name} class_{c_name} = \{")
647 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
649 for i
in [0 .. vft
.length
[ do
650 var mpropdef
= vft
[i
]
651 if mpropdef
== null then
652 v
.add_decl
("NULL, /* empty */")
654 if true or mpropdef
.mclassdef
.bound_mtype
.ctype
!= "val*" then
655 v
.add_decl
("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
657 v
.add_decl
("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
664 if mtype
.ctype
!= "val*" then
665 #Build instance struct
666 self.header
.add_decl
("struct instance_{c_name} \{")
667 self.header
.add_decl
("const struct type *type;")
668 self.header
.add_decl
("const struct class *class;")
669 self.header
.add_decl
("{mtype.ctype} value;")
670 self.header
.add_decl
("\};")
672 if not self.runtime_type_analysis
.live_types
.has
(mtype
) then return
674 self.header
.add_decl
("val* BOX_{c_name}({mtype.ctype});")
675 v
.add_decl
("/* allocate {mtype} */")
676 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
677 v
.add
("struct instance_{c_name}*res = GC_MALLOC(sizeof(struct instance_{c_name}));")
678 v
.add
("res->type = (struct type*) &type_{c_name};")
679 v
.add
("res->class = (struct class*) &class_{c_name};")
680 v
.add
("res->value = value;")
681 v
.add
("return (val*)res;")
686 var is_native_array
= mclass
.name
== "NativeArray"
689 if is_native_array
then
690 sig
= "int length, struct type* type"
692 sig
= "struct type* type"
695 #Build instance struct
696 #extern const struct instance_array__NativeArray instance_array__NativeArray;
697 self.header
.add_decl
("struct instance_{c_name} \{")
698 self.header
.add_decl
("const struct type *type;")
699 self.header
.add_decl
("const struct class *class;")
700 self.header
.add_decl
("nitattribute_t attrs[{attrs.length}];")
701 if is_native_array
then
702 # NativeArrays are just a instance header followed by an array of values
703 self.header
.add_decl
("val* values[0];")
705 self.header
.add_decl
("\};")
708 self.header
.add_decl
("{mtype.ctype} NEW_{c_name}({sig});")
709 v
.add_decl
("/* allocate {mtype} */")
710 v
.add_decl
("{mtype.ctype} NEW_{c_name}({sig}) \{")
711 var res
= v
.new_named_var
(mtype
, "self")
713 if is_native_array
then
714 var mtype_elt
= mtype
.arguments
.first
715 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
717 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
719 v
.add
("{res}->type = type;")
720 if v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then
721 v
.add
("if(type == NULL) \{")
722 v
.add_abort
("type null")
724 v
.add
("if(type->resolution_table == NULL) \{")
725 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", type->name);")
726 v
.add_abort
("type dead")
729 v
.add
("{res}->class = (struct class*) &class_{c_name};")
731 self.generate_init_attr
(v
, res
, mtype
)
732 v
.add
("return {res};")
735 generate_check_init_instance
(mtype
)
738 redef fun generate_check_init_instance
(mtype
)
740 if self.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
742 var v
= self.new_visitor
743 var c_name
= mtype
.mclass
.c_name
744 var res
= new RuntimeVariable("self", mtype
, mtype
)
745 self.header
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype});")
746 v
.add_decl
("/* allocate {mtype} */")
747 v
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype} {res}) \{")
748 self.generate_check_attr
(v
, res
, mtype
)
752 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
756 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
757 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
758 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
759 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
761 redef fun display_stats
764 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
771 print
"# size of subtyping tables"
772 print
"\ttotal \tholes"
775 for t
, table
in type_tables
do
776 total
+= table
.length
777 for e
in table
do if e
== null then holes
+= 1
779 print
"\t{total}\t{holes}"
781 print
"# size of resolution tables"
782 print
"\ttotal \tholes"
785 for t
, table
in resolution_tables
do
786 total
+= table
.length
787 for e
in table
do if e
== null then holes
+= 1
789 print
"\t{total}\t{holes}"
791 print
"# size of methods tables"
792 print
"\ttotal \tholes"
795 for t
, table
in method_tables
do
796 total
+= table
.length
797 for e
in table
do if e
== null then holes
+= 1
799 print
"\t{total}\t{holes}"
801 print
"# size of attributes tables"
802 print
"\ttotal \tholes"
805 for t
, table
in attr_tables
do
806 total
+= table
.length
807 for e
in table
do if e
== null then holes
+= 1
809 print
"\t{total}\t{holes}"
813 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
814 class SeparateCompilerVisitor
815 super AbstractCompilerVisitor
817 redef type COMPILER: SeparateCompiler
819 redef fun adapt_signature
(m
, args
)
821 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
822 var recv
= args
.first
823 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
824 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
826 for i
in [0..msignature
.arity
[ do
827 var t
= msignature
.mparameters
[i
].mtype
828 if i
== msignature
.vararg_rank
then
831 args
[i
+1] = self.autobox
(args
[i
+1], t
)
835 redef fun autobox
(value
, mtype
)
837 if value
.mtype
== mtype
then
839 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
841 else if value
.mtype
.ctype
== "val*" then
842 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
843 else if mtype
.ctype
== "val*" then
844 var valtype
= value
.mtype
.as(MClassType)
845 var res
= self.new_var
(mtype
)
846 if not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
847 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
848 self.add
("printf(\"Dead code executed
!\\n\
"); exit(1);")
851 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
854 # Bad things will appen!
855 var res
= self.new_var
(mtype
)
856 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
857 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); exit(1);")
862 # Return a C expression returning the runtime type structure of the value
863 # The point of the method is to works also with primitives types.
864 fun type_info
(value
: RuntimeVariable): String
866 if value
.mtype
.ctype
== "val*" then
867 return "{value}->type"
869 return "(&type_{value.mtype.c_name})"
873 redef fun send
(mmethod
, arguments
)
875 if arguments
.first
.mcasttype
.ctype
!= "val*" then
876 return self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
879 var res
: nullable RuntimeVariable
880 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
881 var ret
= msignature
.return_mtype
882 if mmethod
.is_new
then
883 ret
= arguments
.first
.mtype
884 res
= self.new_var
(ret
)
885 else if ret
== null then
888 res
= self.new_var
(ret
)
894 var recv
= arguments
.first
897 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
898 for i
in [0..msignature
.arity
[ do
899 var a
= arguments
[i
+1]
900 var t
= msignature
.mparameters
[i
].mtype
901 if i
== msignature
.vararg_rank
then
902 t
= arguments
[i
+1].mcasttype
904 s
.append
(", {t.ctype}")
905 a
= self.autobox
(a
, t
)
909 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
910 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
912 self.add
("if ({recv} == NULL) \{")
913 if mmethod
.name
== "==" then
915 var arg
= arguments
[1]
916 if arg
.mcasttype
isa MNullableType then
917 self.add
("{res} = ({arg} == NULL);")
918 else if arg
.mcasttype
isa MNullType then
919 self.add
("{res} = 1; /* is null */")
921 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
923 else if mmethod
.name
== "!=" then
925 var arg
= arguments
[1]
926 if arg
.mcasttype
isa MNullableType then
927 self.add
("{res} = ({arg} != NULL);")
928 else if arg
.mcasttype
isa MNullType then
929 self.add
("{res} = 0; /* is null */")
931 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
934 self.add_abort
("Reciever is null")
936 self.add
("\} else \{")
938 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
940 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
941 var arg
= arguments
[1]
942 if arg
.mcasttype
isa MNullType then
943 if mmethod
.name
== "==" then
944 self.add
("{res} = 0; /* arg is null but recv is not */")
946 self.add
("{res} = 1; /* arg is null and recv is not */")
956 if ret
== null then r
= "void" else r
= ret
.ctype
957 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{mmethod.const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
960 self.add
("{res} = {call};")
972 redef fun call
(mmethoddef
, recvtype
, arguments
)
974 var res
: nullable RuntimeVariable
975 var ret
= mmethoddef
.msignature
.return_mtype
976 if mmethoddef
.mproperty
.is_new
then
977 ret
= arguments
.first
.mtype
978 res
= self.new_var
(ret
)
979 else if ret
== null then
982 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
983 res
= self.new_var
(ret
)
986 if self.compiler
.modelbuilder
.mpropdef2npropdef
.has_key
(mmethoddef
) and
987 self.compiler
.modelbuilder
.mpropdef2npropdef
[mmethoddef
] isa AInternMethPropdef and
988 not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
then
989 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
990 frame
.returnlabel
= self.get_name
("RET_LABEL")
991 frame
.returnvar
= res
992 var old_frame
= self.frame
994 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) */")
995 mmethoddef
.compile_inside_to_c
(self, arguments
)
996 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
998 self.frame
= old_frame
1003 self.adapt_signature
(mmethoddef
, arguments
)
1006 self.add
("{mmethoddef.c_name}({arguments.join(", ")});")
1009 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1015 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1017 # FIXME implements a polymorphic access in tables
1018 m
= m
.lookup_next_definition
(m
.mclassdef
.mmodule
, m
.mclassdef
.bound_mtype
)
1019 return self.call
(m
, recvtype
, args
)
1022 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1024 # A vararg must be stored into an new array
1025 # The trick is that the dymaic type of the array may depends on the receiver
1026 # of the method (ie recv) if the static type is unresolved
1027 # This is more complex than usual because the unresolved type must not be resolved
1028 # with the current receiver (ie self).
1029 # Therefore to isolate the resolution from self, a local Frame is created.
1030 # One can see this implementation as an inlined method of the receiver whose only
1031 # job is to allocate the array
1032 var old_frame
= self.frame
1033 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1035 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1036 var res
= self.array_instance
(varargs
, elttype
)
1037 self.frame
= old_frame
1041 redef fun isset_attribute
(a
, recv
)
1043 self.check_recv_notnull
(recv
)
1044 var res
= self.new_var
(bool_type
)
1046 # What is the declared type of the attribute?
1047 var mtype
= a
.intro
.static_mtype
.as(not null)
1048 var intromclassdef
= a
.intro
.mclassdef
1049 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1051 if mtype
isa MNullableType then
1052 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1056 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1057 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1060 if mtype
.ctype
== "val*" then
1061 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1063 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1069 redef fun read_attribute
(a
, recv
)
1071 self.check_recv_notnull
(recv
)
1073 # What is the declared type of the attribute?
1074 var ret
= a
.intro
.static_mtype
.as(not null)
1075 var intromclassdef
= a
.intro
.mclassdef
1076 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1078 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1079 # Get the attribute or a box (ie. always a val*)
1080 var cret
= self.object_type
.as_nullable
1081 var res
= self.new_var
(cret
)
1084 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1086 # Check for Uninitialized attribute
1087 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1088 self.add
("if ({res} == NULL) \{")
1089 self.add_abort
("Uninitialized attribute {a.name}")
1093 # Return the attribute or its unboxed version
1094 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1095 return self.autobox
(res
, ret
)
1097 var res
= self.new_var
(ret
)
1098 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1100 # Check for Uninitialized attribute
1101 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1102 self.add
("if ({res} == NULL) \{")
1103 self.add_abort
("Uninitialized attribute {a.name}")
1111 redef fun write_attribute
(a
, recv
, value
)
1113 self.check_recv_notnull
(recv
)
1115 # What is the declared type of the attribute?
1116 var mtype
= a
.intro
.static_mtype
.as(not null)
1117 var intromclassdef
= a
.intro
.mclassdef
1118 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1120 # Adapt the value to the declared type
1121 value
= self.autobox
(value
, mtype
)
1123 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1124 var attr
= "{recv}->attrs[{a.const_color}]"
1125 if mtype
.ctype
!= "val*" then
1126 assert mtype
isa MClassType
1127 # The attribute is primitive, thus we store it in a box
1128 # The trick is to create the box the first time then resuse the box
1129 self.add
("if ({attr} != NULL) \{")
1130 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1131 self.add
("\} else \{")
1132 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1133 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1136 # The attribute is not primitive, thus store it direclty
1137 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1140 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1144 redef fun init_instance
(mtype
)
1146 var compiler
= self.compiler
1147 if mtype
isa MGenericType and mtype
.need_anchor
then
1148 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1149 var recv
= self.frame
.arguments
.first
1150 var recv_type_info
= self.type_info
(recv
)
1151 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1152 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1154 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1157 compiler
.undead_types
.add
(mtype
)
1158 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) &type_{mtype.c_name})", mtype
)
1161 redef fun check_init_instance
(value
, mtype
)
1163 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
1164 self.add
("CHECK_NEW_{mtype.mclass.c_name}({value});")
1167 redef fun type_test
(value
, mtype
, tag
)
1169 self.add
("/* {value.inspect} isa {mtype} */")
1170 var compiler
= self.compiler
1172 var recv
= self.frame
.arguments
.first
1173 var recv_type_info
= self.type_info
(recv
)
1175 var res
= self.new_var
(bool_type
)
1177 var cltype
= self.get_name
("cltype")
1178 self.add_decl
("int {cltype};")
1179 var idtype
= self.get_name
("idtype")
1180 self.add_decl
("int {idtype};")
1182 var maybe_null
= self.maybe_null
(value
)
1183 var accept_null
= "0"
1185 if ntype
isa MNullableType then
1190 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1191 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1192 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1193 self.compiler
.count_type_test_skipped
[tag
] += 1
1194 self.add
("count_type_test_skipped_{tag}++;")
1199 if ntype
.need_anchor
then
1200 var type_struct
= self.get_name
("type_struct")
1201 self.add_decl
("struct type* {type_struct};")
1203 # Either with resolution_table with a direct resolution
1204 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, ntype
)
1205 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1206 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {ntype.const_color})];")
1208 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{ntype.const_color}];")
1210 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1211 self.compiler
.count_type_test_unresolved
[tag
] += 1
1212 self.add
("count_type_test_unresolved_{tag}++;")
1214 self.add
("{cltype} = {type_struct}->color;")
1215 self.add
("{idtype} = {type_struct}->id;")
1216 if maybe_null
and accept_null
== "0" then
1217 var is_nullable
= self.get_name
("is_nullable")
1218 self.add_decl
("short int {is_nullable};")
1219 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1220 accept_null
= is_nullable
.to_s
1222 else if ntype
isa MClassType then
1223 compiler
.undead_types
.add
(mtype
)
1224 self.add
("{cltype} = type_{mtype.c_name}.color;")
1225 self.add
("{idtype} = type_{mtype.c_name}.id;")
1226 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1227 self.compiler
.count_type_test_resolved
[tag
] += 1
1228 self.add
("count_type_test_resolved_{tag}++;")
1231 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); exit(1);")
1234 # check color is in table
1236 self.add
("if({value} == NULL) \{")
1237 self.add
("{res} = {accept_null};")
1238 self.add
("\} else \{")
1240 var value_type_info
= self.type_info
(value
)
1241 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1242 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1244 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1245 self.add
("{res} = 0;")
1246 self.add
("\} else \{")
1247 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1256 redef fun is_same_type_test
(value1
, value2
)
1258 var res
= self.new_var
(bool_type
)
1259 # Swap values to be symetric
1260 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1265 if value1
.mtype
.ctype
!= "val*" then
1266 if value2
.mtype
== value1
.mtype
then
1267 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1268 else if value2
.mtype
.ctype
!= "val*" then
1269 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1271 var mtype1
= value1
.mtype
.as(MClassType)
1272 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name}); /* is_same_type_test */")
1275 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1280 redef fun class_name_string
(value
)
1282 var res
= self.get_name
("var_class_name")
1283 self.add_decl
("const char* {res};")
1284 if value
.mtype
.ctype
== "val*" then
1285 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1287 self.add
"{res} = type_{value.mtype.c_name}.name;"
1292 redef fun equal_test
(value1
, value2
)
1294 var res
= self.new_var
(bool_type
)
1295 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1300 if value1
.mtype
.ctype
!= "val*" then
1301 if value2
.mtype
== value1
.mtype
then
1302 self.add
("{res} = {value1} == {value2};")
1303 else if value2
.mtype
.ctype
!= "val*" then
1304 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1306 var mtype1
= value1
.mtype
.as(MClassType)
1307 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name});")
1308 self.add
("if ({res}) \{")
1309 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1314 var maybe_null
= true
1315 var test
= new Array[String]
1316 var t1
= value1
.mcasttype
1317 if t1
isa MNullableType then
1318 test
.add
("{value1} != NULL")
1323 var t2
= value2
.mcasttype
1324 if t2
isa MNullableType then
1325 test
.add
("{value2} != NULL")
1331 var incompatible
= false
1333 if t1
.ctype
!= "val*" then
1336 # No need to compare class
1337 else if t2
.ctype
!= "val*" then
1339 else if can_be_primitive
(value2
) then
1340 test
.add
("{value1}->class == {value2}->class")
1344 else if t2
.ctype
!= "val*" then
1346 if can_be_primitive
(value1
) then
1347 test
.add
("{value1}->class == {value2}->class")
1355 if incompatible
then
1357 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1360 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1364 if primitive
!= null then
1365 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1366 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1367 test
.add
("{value1}->class == {value2}->class")
1368 var s
= new Array[String]
1369 for t
, v
in self.compiler
.box_kinds
do
1370 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1372 test
.add
("({s.join(" || ")})")
1374 self.add
("{res} = {value1} == {value2};")
1377 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1381 fun can_be_primitive
(value
: RuntimeVariable): Bool
1383 var t
= value
.mcasttype
1384 if t
isa MNullableType then t
= t
.mtype
1385 if not t
isa MClassType then return false
1386 var k
= t
.mclass
.kind
1387 return k
== interface_kind
or t
.ctype
!= "val*"
1390 fun maybe_null
(value
: RuntimeVariable): Bool
1392 var t
= value
.mcasttype
1393 return t
isa MNullableType or t
isa MNullType
1396 redef fun array_instance
(array
, elttype
)
1398 var nclass
= self.get_class
("NativeArray")
1399 var arrayclass
= self.get_class
("Array")
1400 var arraytype
= arrayclass
.get_mtype
([elttype
])
1401 var res
= self.init_instance
(arraytype
)
1402 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1403 var length
= self.int_instance
(array
.length
)
1404 var nat
= native_array_instance
(elttype
, length
)
1405 for i
in [0..array
.length
[ do
1406 var r
= self.autobox
(array
[i
], self.object_type
)
1407 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1409 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1410 self.check_init_instance
(res
, arraytype
)
1415 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1417 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1418 assert mtype
isa MGenericType
1419 var compiler
= self.compiler
1420 if mtype
.need_anchor
then
1421 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1422 var recv
= self.frame
.arguments
.first
1423 var recv_type_info
= self.type_info
(recv
)
1424 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1425 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1427 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1430 compiler
.undead_types
.add
(mtype
)
1431 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) &type_{mtype.c_name})", mtype
)
1434 redef fun native_array_def
(pname
, ret_type
, arguments
)
1436 var elttype
= arguments
.first
.mtype
1437 var nclass
= self.get_class
("NativeArray")
1438 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1439 if pname
== "[]" then
1440 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1442 else if pname
== "[]=" then
1443 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1445 else if pname
== "copy_to" then
1446 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1447 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1452 redef fun calloc_array
(ret_type
, arguments
)
1454 var mclass
= self.get_class
("ArrayCapable")
1455 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1456 var res
= self.native_array_instance
(ft
, arguments
[1])
1460 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1461 assert mtype
.need_anchor
1462 var compiler
= self.compiler
1463 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1464 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1466 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1470 # The C function associated to a methoddef separately compiled
1471 class SeparateRuntimeFunction
1472 super AbstractRuntimeFunction
1474 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1476 redef fun to_s
do return self.mmethoddef
.to_s
1478 redef fun compile_to_c
(compiler
)
1480 var mmethoddef
= self.mmethoddef
1482 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1483 var v
= compiler
.new_visitor
1484 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1485 var arguments
= new Array[RuntimeVariable]
1486 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1489 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1491 var sig
= new Buffer
1492 var comment
= new Buffer
1493 var ret
= msignature
.return_mtype
1495 sig
.append
("{ret.ctype} ")
1496 else if mmethoddef
.mproperty
.is_new
then
1498 sig
.append
("{ret.ctype} ")
1502 sig
.append
(self.c_name
)
1503 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1504 comment
.append
("(self: {selfvar}")
1505 arguments
.add
(selfvar
)
1506 for i
in [0..msignature
.arity
[ do
1507 var mtype
= msignature
.mparameters
[i
].mtype
1508 if i
== msignature
.vararg_rank
then
1509 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1511 comment
.append
(", {mtype}")
1512 sig
.append
(", {mtype.ctype} p{i}")
1513 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1514 arguments
.add
(argvar
)
1519 comment
.append
(": {ret}")
1521 compiler
.header
.add_decl
("{sig};")
1523 v
.add_decl
("/* method {self} for {comment} */")
1524 v
.add_decl
("{sig} \{")
1526 frame
.returnvar
= v
.new_var
(ret
)
1528 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1530 if recv
!= arguments
.first
.mtype
then
1531 #print "{self} {recv} {arguments.first}"
1533 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1535 v
.add
("{frame.returnlabel.as(not null)}:;")
1537 v
.add
("return {frame.returnvar.as(not null)};")
1543 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1544 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1545 class VirtualRuntimeFunction
1546 super AbstractRuntimeFunction
1548 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1550 redef fun to_s
do return self.mmethoddef
.to_s
1552 redef fun compile_to_c
(compiler
)
1554 var mmethoddef
= self.mmethoddef
1556 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1557 var v
= compiler
.new_visitor
1558 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1559 var arguments
= new Array[RuntimeVariable]
1560 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1563 var sig
= new Buffer
1564 var comment
= new Buffer
1566 # Because the function is virtual, the signature must match the one of the original class
1567 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1568 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1569 var ret
= msignature
.return_mtype
1571 sig
.append
("{ret.ctype} ")
1572 else if mmethoddef
.mproperty
.is_new
then
1574 sig
.append
("{ret.ctype} ")
1578 sig
.append
(self.c_name
)
1579 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1580 comment
.append
("(self: {selfvar}")
1581 arguments
.add
(selfvar
)
1582 for i
in [0..msignature
.arity
[ do
1583 var mtype
= msignature
.mparameters
[i
].mtype
1584 if i
== msignature
.vararg_rank
then
1585 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1587 comment
.append
(", {mtype}")
1588 sig
.append
(", {mtype.ctype} p{i}")
1589 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1590 arguments
.add
(argvar
)
1595 comment
.append
(": {ret}")
1597 compiler
.header
.add_decl
("{sig};")
1599 v
.add_decl
("/* method {self} for {comment} */")
1600 v
.add_decl
("{sig} \{")
1602 frame
.returnvar
= v
.new_var
(ret
)
1604 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1606 if recv
!= arguments
.first
.mtype
then
1607 #print "{self} {recv} {arguments.first}"
1609 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1611 v
.add
("{frame.returnlabel.as(not null)}:;")
1613 v
.add
("return {frame.returnvar.as(not null)};")
1619 redef fun call
(v
, arguments
) do abort
1623 fun const_color
: String do return "COLOR_{c_name}"
1626 redef class MProperty
1627 fun const_color
: String do return "COLOR_{c_name}"