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 compiler
.new_file
("{mainmodule.name}.classes")
69 compiler
.do_property_coloring
70 for m
in mainmodule
.in_importation
.greaters
do
71 for mclass
in m
.intro_mclasses
do
72 compiler
.compile_class_to_c
(mclass
)
76 # The main function of the C
77 compiler
.new_file
("{mainmodule.name}.main")
78 compiler
.compile_main_function
81 for m
in mainmodule
.in_importation
.greaters
do
82 compiler
.new_file
("{m.name}.sep")
83 compiler
.compile_module_to_c
(m
)
86 # compile live & cast type structures
87 compiler
.new_file
("{mainmodule.name}.types")
88 var mtypes
= compiler
.do_type_coloring
90 compiler
.compile_type_to_c
(t
)
93 compiler
.display_stats
95 write_and_make
(compiler
)
99 # Singleton that store the knowledge about the separate compilation process
100 class SeparateCompiler
101 super AbstractCompiler
103 # The result of the RTA (used to know live types and methods)
104 var runtime_type_analysis
: RapidTypeAnalysis
106 private var undead_types
: Set[MType] = new HashSet[MType]
107 private var partial_types
: Set[MType] = new HashSet[MType]
108 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
110 private var type_layout
: nullable Layout[MType]
111 private var resolution_layout
: nullable Layout[MType]
112 protected var method_layout
: nullable Layout[MMethod]
113 protected var attr_layout
: nullable Layout[MAttribute]
115 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: RapidTypeAnalysis) do
116 super(mainmodule
, mmbuilder
)
117 var file
= new_file
("nit.common")
118 self.header
= new CodeWriter(file
)
119 self.runtime_type_analysis
= runtime_type_analysis
120 self.compile_box_kinds
123 redef fun compile_header_structs
do
124 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
125 self.compile_header_attribute_structs
126 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
128 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
129 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. */")
130 self.header
.add_decl
("struct instance \{ const struct type *type; const struct class *class; nitattribute_t attrs[]; \}; /* general C type representing a Nit instance. */")
132 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
133 self.header
.add_decl
("struct types \{ int mask; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
135 self.header
.add_decl
("struct types \{ int dummy; const struct type *types[]; \}; /* a list types (used for vts, fts and unresolved lists). */")
138 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
139 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
140 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
141 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
144 self.header
.add_decl
("typedef struct instance val; /* general C type representing a Nit instance. */")
147 fun compile_header_attribute_structs
149 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
150 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
152 self.header
.add_decl
("typedef union \{")
153 self.header
.add_decl
("void* val;")
154 for c
, v
in self.box_kinds
do
155 var t
= c
.mclass_type
156 self.header
.add_decl
("{t.ctype} {t.ctypename};")
158 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
162 fun compile_box_kinds
164 # Collect all bas box class
165 # FIXME: this is not completely fine with a separate compilation scheme
166 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
167 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
168 if classes
== null then continue
169 assert classes
.length
== 1 else print classes
.join
(", ")
170 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
174 var box_kinds
= new HashMap[MClass, Int]
176 fun box_kind_of
(mclass
: MClass): Int
178 if mclass
.mclass_type
.ctype
== "val*" then
180 else if mclass
.kind
== extern_kind
then
181 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
183 return self.box_kinds
[mclass
]
188 fun compile_color_consts
(colors
: Map[Object, Int]) do
190 for m
, c
in colors
do
191 if color_consts_done
.has
(m
) then continue
192 if m
isa MProperty then
193 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
194 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {c}")
196 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
197 v
.add
("const int {m.const_color} = {c};")
199 else if m
isa MType then
200 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
201 self.provide_declaration
(m
.const_color
, "#define {m.const_color} {c}")
203 self.provide_declaration
(m
.const_color
, "extern const int {m.const_color};")
204 v
.add
("const int {m.const_color} = {c};")
207 color_consts_done
.add
(m
)
211 private var color_consts_done
= new HashSet[Object]
213 # colorize classe properties
214 fun do_property_coloring
do
215 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
218 var method_layout_builder
: PropertyLayoutBuilder[MMethod]
219 var attribute_layout_builder
: PropertyLayoutBuilder[MAttribute]
220 #FIXME PH and BM layouts too slow for large programs
221 #if modelbuilder.toolcontext.opt_bm_typing.value then
222 # method_layout_builder = new MMethodBMizer(self.mainmodule)
223 # attribute_layout_builder = new MAttributeBMizer(self.mainmodule)
224 #else if modelbuilder.toolcontext.opt_phmod_typing.value then
225 # method_layout_builder = new MMethodHasher(new PHModOperator, self.mainmodule)
226 # attribute_layout_builder = new MAttributeHasher(new PHModOperator, self.mainmodule)
227 #else if modelbuilder.toolcontext.opt_phand_typing.value then
228 # method_layout_builder = new MMethodHasher(new PHAndOperator, self.mainmodule)
229 # attribute_layout_builder = new MAttributeHasher(new PHAndOperator, self.mainmodule)
231 method_layout_builder
= new MMethodColorer(self.mainmodule
)
232 attribute_layout_builder
= new MAttributeColorer(self.mainmodule
)
236 var method_layout
= method_layout_builder
.build_layout
(mclasses
)
237 self.method_tables
= build_method_tables
(mclasses
, method_layout
)
238 self.compile_color_consts
(method_layout
.pos
)
239 self.method_layout
= method_layout
241 # attributes coloration
242 var attr_layout
= attribute_layout_builder
.build_layout
(mclasses
)
243 self.attr_tables
= build_attr_tables
(mclasses
, attr_layout
)
244 self.compile_color_consts
(attr_layout
.pos
)
245 self.attr_layout
= attr_layout
248 fun build_method_tables
(mclasses
: Set[MClass], layout
: Layout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
249 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
250 for mclass
in mclasses
do
251 var table
= new Array[nullable MPropDef]
252 # first, fill table from parents by reverse linearization order
253 var parents
= self.mainmodule
.super_mclasses
(mclass
)
254 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
256 for mproperty
in self.mainmodule
.properties
(parent
) do
257 if not mproperty
isa MMethod then continue
258 var color
= layout
.pos
[mproperty
]
259 if table
.length
<= color
then
260 for i
in [table
.length
.. color
[ do
264 for mpropdef
in mproperty
.mpropdefs
do
265 if mpropdef
.mclassdef
.mclass
== parent
then
266 table
[color
] = mpropdef
272 # then override with local properties
273 for mproperty
in self.mainmodule
.properties
(mclass
) do
274 if not mproperty
isa MMethod then continue
275 var color
= layout
.pos
[mproperty
]
276 if table
.length
<= color
then
277 for i
in [table
.length
.. color
[ do
281 for mpropdef
in mproperty
.mpropdefs
do
282 if mpropdef
.mclassdef
.mclass
== mclass
then
283 table
[color
] = mpropdef
287 tables
[mclass
] = table
292 fun build_attr_tables
(mclasses
: Set[MClass], layout
: Layout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
293 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
294 for mclass
in mclasses
do
295 var table
= new Array[nullable MPropDef]
296 # first, fill table from parents by reverse linearization order
297 var parents
= self.mainmodule
.super_mclasses
(mclass
)
298 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
300 for mproperty
in self.mainmodule
.properties
(parent
) do
301 if not mproperty
isa MAttribute then continue
302 var color
= layout
.pos
[mproperty
]
303 if table
.length
<= color
then
304 for i
in [table
.length
.. color
[ do
308 for mpropdef
in mproperty
.mpropdefs
do
309 if mpropdef
.mclassdef
.mclass
== parent
then
310 table
[color
] = mpropdef
316 # then override with local properties
317 for mproperty
in self.mainmodule
.properties
(mclass
) do
318 if not mproperty
isa MAttribute then continue
319 var color
= layout
.pos
[mproperty
]
320 if table
.length
<= color
then
321 for i
in [table
.length
.. color
[ do
325 for mpropdef
in mproperty
.mpropdefs
do
326 if mpropdef
.mclassdef
.mclass
== mclass
then
327 table
[color
] = mpropdef
331 tables
[mclass
] = table
336 # colorize live types of the program
337 private fun do_type_coloring
: Set[MType] do
338 var mtypes
= new HashSet[MType]
339 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
340 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
341 mtypes
.add_all
(self.undead_types
)
342 for c
in self.box_kinds
.keys
do
343 mtypes
.add
(c
.mclass_type
)
346 for mtype
in mtypes
do
347 retrieve_partial_types
(mtype
)
349 mtypes
.add_all
(self.partial_types
)
352 var layout_builder
: TypingLayoutBuilder[MType]
353 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
354 layout_builder
= new MTypeBMizer(self.mainmodule
)
355 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
356 layout_builder
= new MTypeHasher(new PHModOperator, self.mainmodule
)
357 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
358 layout_builder
= new MTypeHasher(new PHAndOperator, self.mainmodule
)
360 layout_builder
= new MTypeColorer(self.mainmodule
)
364 self.type_layout
= layout_builder
.build_layout
(mtypes
)
365 self.type_tables
= self.build_type_tables
(mtypes
)
367 # VT and FT are stored with other unresolved types in the big resolution_tables
368 self.compile_resolution_tables
(mtypes
)
374 fun build_type_tables
(mtypes
: Set[MType]): Map[MType, Array[nullable MType]] do
375 var tables
= new HashMap[MType, Array[nullable MType]]
376 var layout
= self.type_layout
377 for mtype
in mtypes
do
378 var table
= new Array[nullable MType]
379 var supers
= new HashSet[MType]
380 supers
.add_all
(self.mainmodule
.super_mtypes
(mtype
, mtypes
))
384 if layout
isa PHLayout[MType, MType] then
385 color
= layout
.hashes
[mtype
][sup
]
387 color
= layout
.pos
[sup
]
389 if table
.length
<= color
then
390 for i
in [table
.length
.. color
[ do
396 tables
[mtype
] = table
401 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
402 # resolution_tables is used to perform a type resolution at runtime in O(1)
404 # During the visit of the body of classes, live_unresolved_types are collected
406 # Collect all live_unresolved_types (visited in the body of classes)
408 # Determinate fo each livetype what are its possible requested anchored types
409 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
410 for mtype
in self.runtime_type_analysis
.live_types
do
411 var set
= new HashSet[MType]
412 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
413 if self.live_unresolved_types
.has_key
(cd
) then
414 set
.add_all
(self.live_unresolved_types
[cd
])
417 mtype2unresolved
[mtype
] = set
420 # Compute the table layout with the prefered method
421 var resolution_builder
: ResolutionLayoutBuilder
422 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
423 resolution_builder
= new ResolutionBMizer
424 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
425 resolution_builder
= new ResolutionHasher(new PHModOperator)
426 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
427 resolution_builder
= new ResolutionHasher(new PHAndOperator)
429 resolution_builder
= new ResolutionColorer
431 self.resolution_layout
= resolution_builder
.build_layout
(mtype2unresolved
)
432 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
434 # Compile a C constant for each collected unresolved type.
435 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
436 var all_unresolved
= new HashSet[MType]
437 for t
in self.live_unresolved_types
.values
do
438 all_unresolved
.add_all
(t
)
440 var all_unresolved_types_colors
= new HashMap[MType, Int]
441 for t
in all_unresolved
do
442 if self.resolution_layout
.pos
.has_key
(t
) then
443 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
445 all_unresolved_types_colors
[t
] = -1
448 self.compile_color_consts
(all_unresolved_types_colors
)
451 #for k, v in unresolved_types_tables.as(not null) do
452 # print "{k}: {v.join(", ")}"
457 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
458 var tables
= new HashMap[MClassType, Array[nullable MType]]
459 var layout
= self.resolution_layout
460 for mclasstype
, mtypes
in elements
do
461 var table
= new Array[nullable MType]
462 for mtype
in mtypes
do
464 if layout
isa PHLayout[MClassType, MType] then
465 color
= layout
.hashes
[mclasstype
][mtype
]
467 color
= layout
.pos
[mtype
]
469 if table
.length
<= color
then
470 for i
in [table
.length
.. color
[ do
476 tables
[mclasstype
] = table
481 fun retrieve_partial_types
(mtype
: MType) do
482 # add formal types arguments to mtypes
483 if mtype
isa MGenericType then
484 for ft
in mtype
.arguments
do
485 if ft
.need_anchor
then
486 print
("Why do we need anchor here ?")
489 self.partial_types
.add
(ft
)
490 retrieve_partial_types
(ft
)
493 var mclass_type
: MClassType
494 if mtype
isa MNullableType then
495 mclass_type
= mtype
.mtype
.as(MClassType)
497 mclass_type
= mtype
.as(MClassType)
500 # add virtual types to mtypes
501 for vt
in self.mainmodule
.properties
(mclass_type
.mclass
) do
502 if vt
isa MVirtualTypeProp then
503 var anchored
= vt
.mvirtualtype
.lookup_bound
(self.mainmodule
, mclass_type
).anchor_to
(self.mainmodule
, mclass_type
)
504 self.partial_types
.add
(anchored
)
509 # Separately compile all the method definitions of the module
510 fun compile_module_to_c
(mmodule
: MModule)
512 var old_module
= self.mainmodule
513 self.mainmodule
= mmodule
514 for cd
in mmodule
.mclassdefs
do
515 for pd
in cd
.mpropdefs
do
516 if not pd
isa MMethodDef then continue
517 #print "compile {pd} @ {cd} @ {mmodule}"
518 var r
= pd
.separate_runtime_function
520 var r2
= pd
.virtual_runtime_function
521 r2
.compile_to_c
(self)
524 self.mainmodule
= old_module
527 # Globaly compile the type structure of a live type
528 fun compile_type_to_c
(mtype
: MType)
530 var c_name
= mtype
.c_name
531 var v
= new SeparateCompilerVisitor(self)
532 v
.add_decl
("/* runtime type {mtype} */")
534 # extern const struct type_X
535 self.provide_declaration
("type_{c_name}", "extern const struct type type_{c_name};")
537 # const struct type_X
538 v
.add_decl
("const struct type type_{c_name} = \{")
539 v
.add_decl
("{self.type_layout.ids[mtype]},")
540 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
541 var layout
= self.type_layout
542 if layout
isa PHLayout[MType, MType] then
543 v
.add_decl
("{layout.masks[mtype]},")
545 v
.add_decl
("{layout.pos[mtype]},")
547 if mtype
isa MNullableType then
552 if compile_type_resolution_table
(mtype
) then
553 v
.require_declaration
("resolution_table_{c_name}")
554 v
.add_decl
("&resolution_table_{c_name},")
558 v
.add_decl
("{self.type_tables[mtype].length},")
560 for stype
in self.type_tables
[mtype
] do
561 if stype
== null then
562 v
.add_decl
("-1, /* empty */")
564 v
.add_decl
("{self.type_layout.ids[stype]}, /* {stype} */")
571 fun compile_type_resolution_table
(mtype
: MType): Bool do
573 var mclass_type
: MClassType
574 if mtype
isa MNullableType then
575 mclass_type
= mtype
.mtype
.as(MClassType)
577 mclass_type
= mtype
.as(MClassType)
579 if not self.resolution_tables
.has_key
(mclass_type
) then return false
581 var layout
= self.resolution_layout
583 # extern const struct resolution_table_X resolution_table_X
584 self.provide_declaration
("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
586 # const struct fts_table_X fts_table_X
588 v
.add_decl
("const struct types resolution_table_{mtype.c_name} = \{")
589 if layout
isa PHLayout[MClassType, MType] then
590 v
.add_decl
("{layout.masks[mclass_type]},")
592 v
.add_decl
("0, /* dummy */")
595 for t
in self.resolution_tables
[mclass_type
] do
597 v
.add_decl
("NULL, /* empty */")
599 # The table stores the result of the type resolution
600 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
601 # the value stored is tv.
602 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
603 # FIXME: What typeids means here? How can a tv not be live?
604 if self.type_layout
.ids
.has_key
(tv
) then
605 v
.require_declaration
("type_{tv.c_name}")
606 v
.add_decl
("&type_{tv.c_name}, /* {t}: {tv} */")
608 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
617 # Globally compile the table of the class mclass
618 # In a link-time optimisation compiler, tables are globally computed
619 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
620 fun compile_class_to_c
(mclass
: MClass)
622 var mtype
= mclass
.intro
.bound_mtype
623 var c_name
= mclass
.c_name
625 var vft
= self.method_tables
[mclass
]
626 var attrs
= self.attr_tables
[mclass
]
629 v
.add_decl
("/* runtime class {c_name} */")
632 self.provide_declaration
("class_{c_name}", "extern const struct class class_{c_name};")
633 v
.add_decl
("const struct class class_{c_name} = \{")
634 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
636 for i
in [0 .. vft
.length
[ do
637 var mpropdef
= vft
[i
]
638 if mpropdef
== null then
639 v
.add_decl
("NULL, /* empty */")
641 assert mpropdef
isa MMethodDef
642 var rf
= mpropdef
.virtual_runtime_function
643 v
.require_declaration
(rf
.c_name
)
644 v
.add_decl
("(nitmethod_t){rf.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
650 if mtype
.ctype
!= "val*" then
651 #Build instance struct
652 self.header
.add_decl
("struct instance_{c_name} \{")
653 self.header
.add_decl
("const struct type *type;")
654 self.header
.add_decl
("const struct class *class;")
655 self.header
.add_decl
("{mtype.ctype} value;")
656 self.header
.add_decl
("\};")
658 if not self.runtime_type_analysis
.live_types
.has
(mtype
) then return
661 self.header
.add_decl
("val* BOX_{c_name}({mtype.ctype});")
662 v
.add_decl
("/* allocate {mtype} */")
663 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
664 v
.add
("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
665 v
.require_declaration
("type_{c_name}")
666 v
.add
("res->type = &type_{c_name};")
667 v
.require_declaration
("class_{c_name}")
668 v
.add
("res->class = &class_{c_name};")
669 v
.add
("res->value = value;")
670 v
.add
("return (val*)res;")
673 else if mclass
.name
== "NativeArray" then
674 #Build instance struct
675 self.header
.add_decl
("struct instance_{c_name} \{")
676 self.header
.add_decl
("const struct type *type;")
677 self.header
.add_decl
("const struct class *class;")
678 # NativeArrays are just a instance header followed by an array of values
679 self.header
.add_decl
("val* values[0];")
680 self.header
.add_decl
("\};")
683 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length, const struct type* type);")
684 v
.add_decl
("/* allocate {mtype} */")
685 v
.add_decl
("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
686 var res
= v
.new_named_var
(mtype
, "self")
688 var mtype_elt
= mtype
.arguments
.first
689 v
.add
("{res} = nit_alloc(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
690 v
.add
("{res}->type = type;")
691 hardening_live_type
(v
, "type")
692 v
.require_declaration
("class_{c_name}")
693 v
.add
("{res}->class = &class_{c_name};")
694 v
.add
("return {res};")
700 self.provide_declaration
("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
701 v
.add_decl
("/* allocate {mtype} */")
702 v
.add_decl
("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
703 var res
= v
.new_named_var
(mtype
, "self")
705 v
.add
("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
706 v
.add
("{res}->type = type;")
707 hardening_live_type
(v
, "type")
708 v
.require_declaration
("class_{c_name}")
709 v
.add
("{res}->class = &class_{c_name};")
710 self.generate_init_attr
(v
, res
, mtype
)
711 v
.add
("return {res};")
714 generate_check_init_instance
(mtype
)
717 # Add a dynamic test to ensure that the type referenced by `t` is a live type
718 fun hardening_live_type
(v
: VISITOR, t
: String)
720 if not v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then return
721 v
.add
("if({t} == NULL) \{")
722 v
.add_abort
("type null")
724 v
.add
("if({t}->resolution_table == NULL) \{")
725 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", {t}->name);")
726 v
.add_abort
("type dead")
730 redef fun generate_check_init_instance
(mtype
)
732 if self.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
734 var v
= self.new_visitor
735 var c_name
= mtype
.mclass
.c_name
736 var res
= new RuntimeVariable("self", mtype
, mtype
)
737 self.provide_declaration
("CHECK_NEW_{c_name}", "void CHECK_NEW_{c_name}({mtype.ctype});")
738 v
.add_decl
("/* allocate {mtype} */")
739 v
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype} {res}) \{")
740 self.generate_check_attr
(v
, res
, mtype
)
744 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
748 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
749 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
750 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
751 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
753 redef fun display_stats
756 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
763 print
"# size of subtyping tables"
764 print
"\ttotal \tholes"
767 for t
, table
in type_tables
do
768 total
+= table
.length
769 for e
in table
do if e
== null then holes
+= 1
771 print
"\t{total}\t{holes}"
773 print
"# size of resolution tables"
774 print
"\ttotal \tholes"
777 for t
, table
in resolution_tables
do
778 total
+= table
.length
779 for e
in table
do if e
== null then holes
+= 1
781 print
"\t{total}\t{holes}"
783 print
"# size of methods tables"
784 print
"\ttotal \tholes"
787 for t
, table
in method_tables
do
788 total
+= table
.length
789 for e
in table
do if e
== null then holes
+= 1
791 print
"\t{total}\t{holes}"
793 print
"# size of attributes tables"
794 print
"\ttotal \tholes"
797 for t
, table
in attr_tables
do
798 total
+= table
.length
799 for e
in table
do if e
== null then holes
+= 1
801 print
"\t{total}\t{holes}"
805 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
806 class SeparateCompilerVisitor
807 super AbstractCompilerVisitor
809 redef type COMPILER: SeparateCompiler
811 redef fun adapt_signature
(m
, args
)
813 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
814 var recv
= args
.first
815 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
816 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
818 for i
in [0..msignature
.arity
[ do
819 var t
= msignature
.mparameters
[i
].mtype
820 if i
== msignature
.vararg_rank
then
823 args
[i
+1] = self.autobox
(args
[i
+1], t
)
827 redef fun autobox
(value
, mtype
)
829 if value
.mtype
== mtype
then
831 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
833 else if value
.mtype
.ctype
== "val*" then
834 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
835 else if mtype
.ctype
== "val*" then
836 var valtype
= value
.mtype
.as(MClassType)
837 var res
= self.new_var
(mtype
)
838 if not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
839 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
840 self.add
("printf(\"Dead code executed
!\\n\
"); exit(1);")
843 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
846 # Bad things will appen!
847 var res
= self.new_var
(mtype
)
848 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
849 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); exit(1);")
854 # Return a C expression returning the runtime type structure of the value
855 # The point of the method is to works also with primitives types.
856 fun type_info
(value
: RuntimeVariable): String
858 if value
.mtype
.ctype
== "val*" then
859 return "{value}->type"
861 self.require_declaration
("type_{value.mtype.c_name}")
862 return "(&type_{value.mtype.c_name})"
866 redef fun send
(mmethod
, arguments
)
868 if arguments
.first
.mcasttype
.ctype
!= "val*" then
869 return self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
872 var res
: nullable RuntimeVariable
873 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
874 var ret
= msignature
.return_mtype
875 if mmethod
.is_new
then
876 ret
= arguments
.first
.mtype
877 res
= self.new_var
(ret
)
878 else if ret
== null then
881 res
= self.new_var
(ret
)
887 var recv
= arguments
.first
890 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
891 for i
in [0..msignature
.arity
[ do
892 var a
= arguments
[i
+1]
893 var t
= msignature
.mparameters
[i
].mtype
894 if i
== msignature
.vararg_rank
then
895 t
= arguments
[i
+1].mcasttype
897 s
.append
(", {t.ctype}")
898 a
= self.autobox
(a
, t
)
902 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
903 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
905 self.add
("if ({recv} == NULL) \{")
906 if mmethod
.name
== "==" then
908 var arg
= arguments
[1]
909 if arg
.mcasttype
isa MNullableType then
910 self.add
("{res} = ({arg} == NULL);")
911 else if arg
.mcasttype
isa MNullType then
912 self.add
("{res} = 1; /* is null */")
914 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
916 else if mmethod
.name
== "!=" then
918 var arg
= arguments
[1]
919 if arg
.mcasttype
isa MNullableType then
920 self.add
("{res} = ({arg} != NULL);")
921 else if arg
.mcasttype
isa MNullType then
922 self.add
("{res} = 0; /* is null */")
924 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
927 self.add_abort
("Reciever is null")
929 self.add
("\} else \{")
931 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
933 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
934 var arg
= arguments
[1]
935 if arg
.mcasttype
isa MNullType then
936 if mmethod
.name
== "==" then
937 self.add
("{res} = 0; /* arg is null but recv is not */")
939 self.add
("{res} = 1; /* arg is null and recv is not */")
949 if ret
== null then r
= "void" else r
= ret
.ctype
950 self.require_declaration
(mmethod
.const_color
)
951 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{mmethod.const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
954 self.add
("{res} = {call};")
966 redef fun call
(mmethoddef
, recvtype
, arguments
)
968 var res
: nullable RuntimeVariable
969 var ret
= mmethoddef
.msignature
.return_mtype
970 if mmethoddef
.mproperty
.is_new
then
971 ret
= arguments
.first
.mtype
972 res
= self.new_var
(ret
)
973 else if ret
== null then
976 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
977 res
= self.new_var
(ret
)
980 if self.compiler
.modelbuilder
.mpropdef2npropdef
.has_key
(mmethoddef
) and
981 self.compiler
.modelbuilder
.mpropdef2npropdef
[mmethoddef
] isa AInternMethPropdef and
982 not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
then
983 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
984 frame
.returnlabel
= self.get_name
("RET_LABEL")
985 frame
.returnvar
= res
986 var old_frame
= self.frame
988 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) */")
989 mmethoddef
.compile_inside_to_c
(self, arguments
)
990 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
992 self.frame
= old_frame
997 self.adapt_signature
(mmethoddef
, arguments
)
999 self.require_declaration
(mmethoddef
.c_name
)
1001 self.add
("{mmethoddef.c_name}({arguments.join(", ")});")
1004 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1010 redef fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1012 # FIXME implements a polymorphic access in tables
1013 m
= m
.lookup_next_definition
(m
.mclassdef
.mmodule
, m
.mclassdef
.bound_mtype
)
1014 return self.call
(m
, recvtype
, args
)
1017 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1019 # A vararg must be stored into an new array
1020 # The trick is that the dymaic type of the array may depends on the receiver
1021 # of the method (ie recv) if the static type is unresolved
1022 # This is more complex than usual because the unresolved type must not be resolved
1023 # with the current receiver (ie self).
1024 # Therefore to isolate the resolution from self, a local Frame is created.
1025 # One can see this implementation as an inlined method of the receiver whose only
1026 # job is to allocate the array
1027 var old_frame
= self.frame
1028 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1030 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1031 var res
= self.array_instance
(varargs
, elttype
)
1032 self.frame
= old_frame
1036 redef fun isset_attribute
(a
, recv
)
1038 self.check_recv_notnull
(recv
)
1039 var res
= self.new_var
(bool_type
)
1041 # What is the declared type of the attribute?
1042 var mtype
= a
.intro
.static_mtype
.as(not null)
1043 var intromclassdef
= a
.intro
.mclassdef
1044 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1046 if mtype
isa MNullableType then
1047 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1051 self.require_declaration
(a
.const_color
)
1052 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1053 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1056 if mtype
.ctype
== "val*" then
1057 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1059 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1065 redef fun read_attribute
(a
, recv
)
1067 self.check_recv_notnull
(recv
)
1069 # What is the declared type of the attribute?
1070 var ret
= a
.intro
.static_mtype
.as(not null)
1071 var intromclassdef
= a
.intro
.mclassdef
1072 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1074 self.require_declaration
(a
.const_color
)
1075 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1076 # Get the attribute or a box (ie. always a val*)
1077 var cret
= self.object_type
.as_nullable
1078 var res
= self.new_var
(cret
)
1081 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1083 # Check for Uninitialized attribute
1084 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1085 self.add
("if ({res} == NULL) \{")
1086 self.add_abort
("Uninitialized attribute {a.name}")
1090 # Return the attribute or its unboxed version
1091 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1092 return self.autobox
(res
, ret
)
1094 var res
= self.new_var
(ret
)
1095 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1097 # Check for Uninitialized attribute
1098 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1099 self.add
("if ({res} == NULL) \{")
1100 self.add_abort
("Uninitialized attribute {a.name}")
1108 redef fun write_attribute
(a
, recv
, value
)
1110 self.check_recv_notnull
(recv
)
1112 # What is the declared type of the attribute?
1113 var mtype
= a
.intro
.static_mtype
.as(not null)
1114 var intromclassdef
= a
.intro
.mclassdef
1115 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1117 # Adapt the value to the declared type
1118 value
= self.autobox
(value
, mtype
)
1120 self.require_declaration
(a
.const_color
)
1121 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1122 var attr
= "{recv}->attrs[{a.const_color}]"
1123 if mtype
.ctype
!= "val*" then
1124 assert mtype
isa MClassType
1125 # The attribute is primitive, thus we store it in a box
1126 # The trick is to create the box the first time then resuse the box
1127 self.add
("if ({attr} != NULL) \{")
1128 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1129 self.add
("\} else \{")
1130 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1131 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1134 # The attribute is not primitive, thus store it direclty
1135 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1138 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1142 redef fun init_instance
(mtype
)
1144 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1145 var compiler
= self.compiler
1146 if mtype
isa MGenericType and mtype
.need_anchor
then
1147 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1148 var recv
= self.frame
.arguments
.first
1149 var recv_type_info
= self.type_info
(recv
)
1150 self.require_declaration
(mtype
.const_color
)
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}({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}({recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1157 compiler
.undead_types
.add
(mtype
)
1158 self.require_declaration
("type_{mtype.c_name}")
1159 return self.new_expr
("NEW_{mtype.mclass.c_name}(&type_{mtype.c_name})", mtype
)
1162 redef fun check_init_instance
(value
, mtype
)
1164 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
1165 self.require_declaration
("CHECK_NEW_{mtype.mclass.c_name}")
1166 self.add
("CHECK_NEW_{mtype.mclass.c_name}({value});")
1169 redef fun type_test
(value
, mtype
, tag
)
1171 self.add
("/* {value.inspect} isa {mtype} */")
1172 var compiler
= self.compiler
1174 var recv
= self.frame
.arguments
.first
1175 var recv_type_info
= self.type_info
(recv
)
1177 var res
= self.new_var
(bool_type
)
1179 var cltype
= self.get_name
("cltype")
1180 self.add_decl
("int {cltype};")
1181 var idtype
= self.get_name
("idtype")
1182 self.add_decl
("int {idtype};")
1184 var maybe_null
= self.maybe_null
(value
)
1185 var accept_null
= "0"
1187 if ntype
isa MNullableType then
1192 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1193 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1194 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1195 self.compiler
.count_type_test_skipped
[tag
] += 1
1196 self.add
("count_type_test_skipped_{tag}++;")
1201 if ntype
.need_anchor
then
1202 var type_struct
= self.get_name
("type_struct")
1203 self.add_decl
("const struct type* {type_struct};")
1205 # Either with resolution_table with a direct resolution
1206 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, ntype
)
1207 self.require_declaration
(ntype
.const_color
)
1208 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1209 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {ntype.const_color})];")
1211 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{ntype.const_color}];")
1213 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1214 self.compiler
.count_type_test_unresolved
[tag
] += 1
1215 self.add
("count_type_test_unresolved_{tag}++;")
1217 self.add
("{cltype} = {type_struct}->color;")
1218 self.add
("{idtype} = {type_struct}->id;")
1219 if maybe_null
and accept_null
== "0" then
1220 var is_nullable
= self.get_name
("is_nullable")
1221 self.add_decl
("short int {is_nullable};")
1222 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1223 accept_null
= is_nullable
.to_s
1225 else if ntype
isa MClassType then
1226 compiler
.undead_types
.add
(mtype
)
1227 self.require_declaration
("type_{mtype.c_name}")
1228 self.add
("{cltype} = type_{mtype.c_name}.color;")
1229 self.add
("{idtype} = type_{mtype.c_name}.id;")
1230 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1231 self.compiler
.count_type_test_resolved
[tag
] += 1
1232 self.add
("count_type_test_resolved_{tag}++;")
1235 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); exit(1);")
1238 # check color is in table
1240 self.add
("if({value} == NULL) \{")
1241 self.add
("{res} = {accept_null};")
1242 self.add
("\} else \{")
1244 var value_type_info
= self.type_info
(value
)
1245 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1246 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1248 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1249 self.add
("{res} = 0;")
1250 self.add
("\} else \{")
1251 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1260 redef fun is_same_type_test
(value1
, value2
)
1262 var res
= self.new_var
(bool_type
)
1263 # Swap values to be symetric
1264 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1269 if value1
.mtype
.ctype
!= "val*" then
1270 if value2
.mtype
== value1
.mtype
then
1271 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1272 else if value2
.mtype
.ctype
!= "val*" then
1273 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1275 var mtype1
= value1
.mtype
.as(MClassType)
1276 self.require_declaration
("class_{mtype1.c_name}")
1277 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
1280 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1285 redef fun class_name_string
(value
)
1287 var res
= self.get_name
("var_class_name")
1288 self.add_decl
("const char* {res};")
1289 if value
.mtype
.ctype
== "val*" then
1290 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1292 self.require_declaration
("type_{value.mtype.c_name}")
1293 self.add
"{res} = type_{value.mtype.c_name}.name;"
1298 redef fun equal_test
(value1
, value2
)
1300 var res
= self.new_var
(bool_type
)
1301 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1306 if value1
.mtype
.ctype
!= "val*" then
1307 if value2
.mtype
== value1
.mtype
then
1308 self.add
("{res} = {value1} == {value2};")
1309 else if value2
.mtype
.ctype
!= "val*" then
1310 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1312 var mtype1
= value1
.mtype
.as(MClassType)
1313 self.require_declaration
("class_{mtype1.c_name}")
1314 self.add
("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
1315 self.add
("if ({res}) \{")
1316 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1321 var maybe_null
= true
1322 var test
= new Array[String]
1323 var t1
= value1
.mcasttype
1324 if t1
isa MNullableType then
1325 test
.add
("{value1} != NULL")
1330 var t2
= value2
.mcasttype
1331 if t2
isa MNullableType then
1332 test
.add
("{value2} != NULL")
1338 var incompatible
= false
1340 if t1
.ctype
!= "val*" then
1343 # No need to compare class
1344 else if t2
.ctype
!= "val*" then
1346 else if can_be_primitive
(value2
) then
1347 test
.add
("{value1}->class == {value2}->class")
1351 else if t2
.ctype
!= "val*" then
1353 if can_be_primitive
(value1
) then
1354 test
.add
("{value1}->class == {value2}->class")
1362 if incompatible
then
1364 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1367 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1371 if primitive
!= null then
1372 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1373 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1374 test
.add
("{value1}->class == {value2}->class")
1375 var s
= new Array[String]
1376 for t
, v
in self.compiler
.box_kinds
do
1377 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1379 test
.add
("({s.join(" || ")})")
1381 self.add
("{res} = {value1} == {value2};")
1384 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1388 fun can_be_primitive
(value
: RuntimeVariable): Bool
1390 var t
= value
.mcasttype
1391 if t
isa MNullableType then t
= t
.mtype
1392 if not t
isa MClassType then return false
1393 var k
= t
.mclass
.kind
1394 return k
== interface_kind
or t
.ctype
!= "val*"
1397 fun maybe_null
(value
: RuntimeVariable): Bool
1399 var t
= value
.mcasttype
1400 return t
isa MNullableType or t
isa MNullType
1403 redef fun array_instance
(array
, elttype
)
1405 var nclass
= self.get_class
("NativeArray")
1406 var arrayclass
= self.get_class
("Array")
1407 var arraytype
= arrayclass
.get_mtype
([elttype
])
1408 var res
= self.init_instance
(arraytype
)
1409 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1410 var length
= self.int_instance
(array
.length
)
1411 var nat
= native_array_instance
(elttype
, length
)
1412 for i
in [0..array
.length
[ do
1413 var r
= self.autobox
(array
[i
], self.object_type
)
1414 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1416 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1417 self.check_init_instance
(res
, arraytype
)
1422 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1424 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1425 self.require_declaration
("NEW_{mtype.mclass.c_name}")
1426 assert mtype
isa MGenericType
1427 var compiler
= self.compiler
1428 if mtype
.need_anchor
then
1429 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1430 var recv
= self.frame
.arguments
.first
1431 var recv_type_info
= self.type_info
(recv
)
1432 self.require_declaration
(mtype
.const_color
)
1433 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1434 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
)
1436 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1439 compiler
.undead_types
.add
(mtype
)
1440 self.require_declaration
("type_{mtype.c_name}")
1441 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype
)
1444 redef fun native_array_def
(pname
, ret_type
, arguments
)
1446 var elttype
= arguments
.first
.mtype
1447 var nclass
= self.get_class
("NativeArray")
1448 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1449 if pname
== "[]" then
1450 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1452 else if pname
== "[]=" then
1453 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1455 else if pname
== "copy_to" then
1456 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1457 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1462 redef fun calloc_array
(ret_type
, arguments
)
1464 var mclass
= self.get_class
("ArrayCapable")
1465 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1466 var res
= self.native_array_instance
(ft
, arguments
[1])
1470 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1471 assert mtype
.need_anchor
1472 var compiler
= self.compiler
1473 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1474 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1476 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1480 redef class MMethodDef
1481 fun separate_runtime_function
: AbstractRuntimeFunction
1483 var res
= self.separate_runtime_function_cache
1485 res
= new SeparateRuntimeFunction(self)
1486 self.separate_runtime_function_cache
= res
1490 private var separate_runtime_function_cache
: nullable SeparateRuntimeFunction
1492 fun virtual_runtime_function
: AbstractRuntimeFunction
1494 var res
= self.virtual_runtime_function_cache
1496 res
= new VirtualRuntimeFunction(self)
1497 self.virtual_runtime_function_cache
= res
1501 private var virtual_runtime_function_cache
: nullable VirtualRuntimeFunction
1504 # The C function associated to a methoddef separately compiled
1505 class SeparateRuntimeFunction
1506 super AbstractRuntimeFunction
1508 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1510 redef fun to_s
do return self.mmethoddef
.to_s
1512 redef fun compile_to_c
(compiler
)
1514 var mmethoddef
= self.mmethoddef
1516 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1517 var v
= compiler
.new_visitor
1518 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1519 var arguments
= new Array[RuntimeVariable]
1520 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1523 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1525 var sig
= new Buffer
1526 var comment
= new Buffer
1527 var ret
= msignature
.return_mtype
1529 sig
.append
("{ret.ctype} ")
1530 else if mmethoddef
.mproperty
.is_new
then
1532 sig
.append
("{ret.ctype} ")
1536 sig
.append
(self.c_name
)
1537 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1538 comment
.append
("({selfvar}: {selfvar.mtype}")
1539 arguments
.add
(selfvar
)
1540 for i
in [0..msignature
.arity
[ do
1541 var mtype
= msignature
.mparameters
[i
].mtype
1542 if i
== msignature
.vararg_rank
then
1543 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1545 comment
.append
(", {mtype}")
1546 sig
.append
(", {mtype.ctype} p{i}")
1547 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1548 arguments
.add
(argvar
)
1553 comment
.append
(": {ret}")
1555 compiler
.provide_declaration
(self.c_name
, "{sig};")
1557 v
.add_decl
("/* method {self} for {comment} */")
1558 v
.add_decl
("{sig} \{")
1560 frame
.returnvar
= v
.new_var
(ret
)
1562 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1564 if recv
!= arguments
.first
.mtype
then
1565 #print "{self} {recv} {arguments.first}"
1567 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1569 v
.add
("{frame.returnlabel.as(not null)}:;")
1571 v
.add
("return {frame.returnvar.as(not null)};")
1577 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1578 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1579 class VirtualRuntimeFunction
1580 super AbstractRuntimeFunction
1582 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1584 redef fun to_s
do return self.mmethoddef
.to_s
1586 redef fun compile_to_c
(compiler
)
1588 var mmethoddef
= self.mmethoddef
1590 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1591 var v
= compiler
.new_visitor
1592 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1593 var arguments
= new Array[RuntimeVariable]
1594 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1597 var sig
= new Buffer
1598 var comment
= new Buffer
1600 # Because the function is virtual, the signature must match the one of the original class
1601 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1602 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1603 var ret
= msignature
.return_mtype
1605 sig
.append
("{ret.ctype} ")
1606 else if mmethoddef
.mproperty
.is_new
then
1608 sig
.append
("{ret.ctype} ")
1612 sig
.append
(self.c_name
)
1613 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1614 comment
.append
("({selfvar}: {selfvar.mtype}")
1615 arguments
.add
(selfvar
)
1616 for i
in [0..msignature
.arity
[ do
1617 var mtype
= msignature
.mparameters
[i
].mtype
1618 if i
== msignature
.vararg_rank
then
1619 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1621 comment
.append
(", {mtype}")
1622 sig
.append
(", {mtype.ctype} p{i}")
1623 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1624 arguments
.add
(argvar
)
1629 comment
.append
(": {ret}")
1631 compiler
.provide_declaration
(self.c_name
, "{sig};")
1633 v
.add_decl
("/* method {self} for {comment} */")
1634 v
.add_decl
("{sig} \{")
1636 frame
.returnvar
= v
.new_var
(ret
)
1638 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1640 var subret
= v
.call
(mmethoddef
, recv
, arguments
)
1642 assert subret
!= null
1643 v
.assign
(frame
.returnvar
.as(not null), subret
)
1646 v
.add
("{frame.returnlabel.as(not null)}:;")
1648 v
.add
("return {frame.returnvar.as(not null)};")
1654 redef fun call
(v
, arguments
) do abort
1658 fun const_color
: String do return "COLOR_{c_name}"
1661 redef class MProperty
1662 fun const_color
: String do return "COLOR_{c_name}"