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 intrude import coloring
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")
40 # --generic-resolution-tree
41 var opt_typing_table_metrics
: OptionBool = new OptionBool("Enable static size measuring of tables used for typing and resolution", "--typing-table-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_typing_table_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
102 protected var classids
: HashMap[MClassType, String] = new HashMap[MClassType, String]
104 # The result of the RTA (used to know live types and methods)
105 var runtime_type_analysis
: RapidTypeAnalysis
107 private var undead_types
: Set[MType] = new HashSet[MType]
108 private var partial_types
: Set[MType] = new HashSet[MType]
109 protected var typeids
: HashMap[MType, Int] protected writable = new HashMap[MType, Int]
111 private var type_colors
: Map[MType, Int] = typeids
112 private var type_tables
: nullable Map[MType, Array[nullable MType]] = null
114 private var live_unanchored_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
116 private var unanchored_types_colors
: nullable Map[MType, Int]
117 private var unanchored_types_tables
: nullable Map[MClassType, Array[nullable MType]]
118 private var unanchored_types_masks
: nullable Map[MClassType, Int]
120 protected var class_coloring
: ClassColoring
122 protected var method_colors
: Map[MMethod, Int]
123 protected var method_tables
: Map[MClass, Array[nullable MMethodDef]]
125 protected var attr_colors
: Map[MAttribute, Int]
126 protected var attr_tables
: Map[MClass, Array[nullable MAttributeDef]]
128 protected var vt_colors
: Map[MVirtualTypeProp, Int]
129 protected var vt_tables
: Map[MClass, Array[nullable MVirtualTypeDef]]
130 protected var vt_masks
: nullable Map[MClass, Int]
132 private var ft_colors
: nullable Map[MParameterType, Int]
133 private var ft_tables
: nullable Map[MClass, Array[nullable MParameterType]]
134 private var ft_masks
: nullable Map[MClass, Int]
136 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: RapidTypeAnalysis) do
138 self.header
= new_visitor
139 self.runtime_type_analysis
= runtime_type_analysis
140 self.do_property_coloring
141 self.compile_box_kinds
144 redef fun compile_header_structs
do
145 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
146 self.compile_header_attribute_structs
147 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
149 # With unanchored_table, all live type resolution are stored in a big table: unanchored_table
150 self.header
.add_decl
("struct type \{ int id; const char *name; int color; short int is_nullable; struct types *unanchored_table; int table_size; int type_table[1]; \}; /* general C type representing a Nit type. */")
152 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
153 self.header
.add_decl
("struct types \{ int mask; struct type *types[1]; \}; /* a list types (used for vts, fts and unanchored lists). */")
155 self.header
.add_decl
("struct types \{ struct type *types[1]; \}; /* a list types (used for vts, fts and unanchored lists). */")
158 self.header
.add_decl
("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
161 fun compile_header_attribute_structs
163 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
164 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
166 self.header
.add_decl
("typedef union \{")
167 self.header
.add_decl
("void* val;")
168 for c
, v
in self.box_kinds
do
169 var t
= c
.mclass_type
170 self.header
.add_decl
("{t.ctype} {t.ctypename};")
172 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
176 fun compile_box_kinds
178 # Collect all bas box class
179 # FIXME: this is not completely fine with a separate compilation scheme
180 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
181 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
182 if classes
== null then continue
183 assert classes
.length
== 1 else print classes
.join
(", ")
184 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
188 var box_kinds
= new HashMap[MClass, Int]
190 fun box_kind_of
(mclass
: MClass): Int
192 if mclass
.mclass_type
.ctype
== "val*" then
194 else if mclass
.kind
== extern_kind
then
195 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
197 return self.box_kinds
[mclass
]
202 fun compile_color_consts
(colors
: Map[Object, Int]) do
203 for m
, c
in colors
do
204 if m
isa MProperty then
205 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
206 self.header
.add_decl
("#define {m.const_color} {c}")
208 self.header
.add_decl
("extern const int {m.const_color};")
209 self.header
.add
("const int {m.const_color} = {c};")
211 else if m
isa MType then
212 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
213 self.header
.add_decl
("#define {m.const_color} {c}")
215 self.header
.add_decl
("extern const int {m.const_color};")
216 self.header
.add
("const int {m.const_color} = {c};")
222 # colorize classe properties
223 fun do_property_coloring
do
226 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
227 self.class_coloring
= new ClassColoring(mainmodule
)
228 class_coloring
.colorize
(mclasses
)
231 var method_coloring
= new MethodColoring(self.class_coloring
)
232 self.method_colors
= method_coloring
.colorize
233 self.method_tables
= method_coloring
.build_property_tables
234 self.compile_color_consts
(self.method_colors
)
236 # attributes coloration
237 var attribute_coloring
= new AttributeColoring(self.class_coloring
)
238 self.attr_colors
= attribute_coloring
.colorize
239 self.attr_tables
= attribute_coloring
.build_property_tables
240 self.compile_color_consts
(self.attr_colors
)
242 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
243 self.class_coloring
= new NaiveClassColoring(mainmodule
)
244 self.class_coloring
.colorize
(mclasses
)
248 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
249 var vt_coloring
= new NaiveVTColoring(self.class_coloring
)
250 self.vt_colors
= vt_coloring
.colorize
251 self.vt_tables
= vt_coloring
.build_property_tables
252 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
253 var vt_coloring
= new VTModPerfectHashing(self.class_coloring
)
254 self.vt_colors
= vt_coloring
.colorize
255 self.vt_masks
= vt_coloring
.compute_masks
256 self.vt_tables
= vt_coloring
.build_property_tables
257 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
258 var vt_coloring
= new VTAndPerfectHashing(self.class_coloring
)
259 self.vt_colors
= vt_coloring
.colorize
260 self.vt_masks
= vt_coloring
.compute_masks
261 self.vt_tables
= vt_coloring
.build_property_tables
263 var vt_coloring
= new VTColoring(self.class_coloring
)
264 self.vt_colors
= vt_coloring
.colorize
265 self.vt_tables
= vt_coloring
.build_property_tables
267 self.compile_color_consts
(self.vt_colors
)
270 # colorize live types of the program
271 private fun do_type_coloring
: Set[MType] do
272 var mtypes
= new HashSet[MType]
273 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
274 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
275 mtypes
.add_all
(self.undead_types
)
276 for c
in self.box_kinds
.keys
do
277 mtypes
.add
(c
.mclass_type
)
280 for mtype
in mtypes
do
281 retieve_live_partial_types
(mtype
)
283 mtypes
.add_all
(self.partial_types
)
286 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
287 var sorted_mtypes
= new Array[MType].from
(mtypes
)
288 var sorter
= new ReverseTypeSorter(self.mainmodule
)
289 sorter
.sort
(sorted_mtypes
)
290 for mtype
in sorted_mtypes
do
291 self.typeids
[mtype
] = self.typeids
.length
+ 1
294 for mtype
in mtypes
do
295 self.typeids
[mtype
] = self.typeids
.length
299 # VT and FT are stored with other unresolved types in the big unanchored_tables
300 self.compile_unanchored_tables
(mtypes
)
303 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
304 var type_coloring
= new NaiveTypeColoring(self.mainmodule
)
305 self.type_colors
= type_coloring
.colorize
(mtypes
)
306 self.type_tables
= self.build_type_tables
(mtypes
, type_colors
, type_coloring
)
307 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
308 var type_coloring
= new TypeModPerfectHashing(self.mainmodule
)
309 self.type_colors
= type_coloring
.compute_masks
(mtypes
, typeids
)
310 self.type_tables
= self.hash_type_tables
(mtypes
, typeids
, type_colors
, type_coloring
)
311 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
312 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
313 var type_coloring
= new TypeAndPerfectHashing(self.mainmodule
)
314 self.type_colors
= type_coloring
.compute_masks
(mtypes
, typeids
)
315 self.type_tables
= self.hash_type_tables
(mtypes
, typeids
, type_colors
, type_coloring
)
316 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
318 var type_coloring
= new TypeColoring(self.mainmodule
)
319 self.type_colors
= type_coloring
.colorize
(mtypes
)
320 self.type_tables
= self.build_type_tables
(mtypes
, type_colors
, type_coloring
)
328 fun build_type_tables
(mtypes
: Set[MType], colors
: Map[MType, Int], colorer
: TypeColoring): Map[MType, Array[nullable MType]] do
329 var tables
= new HashMap[MType, Array[nullable MType]]
331 for mtype
in mtypes
do
332 var table
= new Array[nullable MType]
333 var supers
= new HashSet[MType]
334 supers
.add_all
(colorer
.super_elements
(mtype
, mtypes
))
337 var color
= colors
[sup
]
338 if table
.length
<= color
then
339 for i
in [table
.length
.. color
[ do
345 tables
[mtype
] = table
351 fun hash_type_tables
(mtypes
: Set[MType], ids
: Map[MType, Int], masks
: Map[MType, Int], colorer
: TypePerfectHashing): Map[MType, Array[nullable MType]] do
352 var tables
= new HashMap[MType, Array[nullable MType]]
354 for mtype
in mtypes
do
355 var table
= new Array[nullable MType]
356 var supers
= new HashSet[MType]
357 supers
.add_all
(colorer
.super_elements
(mtype
, mtypes
))
361 var color
= colorer
.phash
(ids
[sup
], masks
[mtype
])
362 if table
.length
<= color
then
363 for i
in [table
.length
.. color
[ do
369 tables
[mtype
] = table
374 protected fun compile_unanchored_tables
(mtypes
: Set[MType]) do
375 # Unanchored_tables is used to perform a type resolution at runtime in O(1)
377 # During the visit of the body of classes, live_unanchored_types are collected
379 # Collect all live_unanchored_types (visited in the body of classes)
381 # Determinate fo each livetype what are its possible requested anchored types
382 var mtype2unanchored
= new HashMap[MClassType, Set[MType]]
383 for mtype
in self.runtime_type_analysis
.live_types
do
384 var set
= new HashSet[MType]
385 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
386 if self.live_unanchored_types
.has_key
(cd
) then
387 set
.add_all
(self.live_unanchored_types
[cd
])
390 mtype2unanchored
[mtype
] = set
393 # Compute the table layout with the prefered method
394 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
395 var unanchored_type_coloring
= new NaiveUnanchoredTypeColoring
396 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
397 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
398 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
399 var unanchored_type_coloring
= new UnanchoredTypeModPerfectHashing
400 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
401 self.unanchored_types_masks
= unanchored_type_coloring
.compute_masks
(mtype2unanchored
)
402 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
403 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
404 var unanchored_type_coloring
= new UnanchoredTypeAndPerfectHashing
405 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
406 self.unanchored_types_masks
= unanchored_type_coloring
.compute_masks
(mtype2unanchored
)
407 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
409 var unanchored_type_coloring
= new UnanchoredTypeColoring
410 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
411 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
414 # Compile a C constant for each collected unanchored type.
415 # Either to a color, or to -1 if the unanchored type is dead (no live receiver can require it)
416 var all_unanchored
= new HashSet[MType]
417 for t
in self.live_unanchored_types
.values
do
418 all_unanchored
.add_all
(t
)
420 var all_unanchored_types_colors
= new HashMap[MType, Int]
421 for t
in all_unanchored
do
422 if unanchored_types_colors
.has_key
(t
) then
423 all_unanchored_types_colors
[t
] = unanchored_types_colors
[t
]
425 all_unanchored_types_colors
[t
] = -1
428 self.compile_color_consts
(all_unanchored_types_colors
)
431 #for k, v in unanchored_types_tables.as(not null) do
432 # print "{k}: {v.join(", ")}"
437 fun retieve_live_partial_types
(mtype
: MType) do
438 # add formal types arguments to mtypes
439 if mtype
isa MGenericType then
440 for ft
in mtype
.arguments
do
441 if ft
.need_anchor
then
442 print
("Why do we need anchor here ?")
445 self.partial_types
.add
(ft
)
446 retieve_live_partial_types
(ft
)
449 var mclass_type
: MClassType
450 if mtype
isa MNullableType then
451 mclass_type
= mtype
.mtype
.as(MClassType)
453 mclass_type
= mtype
.as(MClassType)
456 # add virtual types to mtypes
457 for vt
in self.vt_tables
[mclass_type
.mclass
] do
459 var anchored
= vt
.bound
.anchor_to
(self.mainmodule
, mclass_type
)
460 self.partial_types
.add
(anchored
)
465 # Separately compile all the method definitions of the module
466 fun compile_module_to_c
(mmodule
: MModule)
468 var old_module
= self.mainmodule
469 self.mainmodule
= mmodule
470 for cd
in mmodule
.mclassdefs
do
471 for pd
in cd
.mpropdefs
do
472 if not pd
isa MMethodDef then continue
473 #print "compile {pd} @ {cd} @ {mmodule}"
474 var r
= new SeparateRuntimeFunction(pd
)
476 if true or cd
.bound_mtype
.ctype
!= "val*" then
477 var r2
= new VirtualRuntimeFunction(pd
)
478 r2
.compile_to_c
(self)
482 self.mainmodule
= old_module
485 # Globaly compile the type structure of a live type
486 fun compile_type_to_c
(mtype
: MType)
488 var c_name
= mtype
.c_name
489 var v
= new SeparateCompilerVisitor(self)
490 v
.add_decl
("/* runtime type {mtype} */")
492 # extern const struct type_X
493 self.header
.add_decl
("extern const struct type_{c_name} type_{c_name};")
494 self.header
.add_decl
("struct type_{c_name} \{")
495 self.header
.add_decl
("int id;")
496 self.header
.add_decl
("const char *name;")
497 self.header
.add_decl
("int color;")
498 self.header
.add_decl
("short int is_nullable;")
499 self.header
.add_decl
("const struct types *unanchored_table;")
500 self.header
.add_decl
("int table_size;")
501 self.header
.add_decl
("int type_table[{self.type_tables[mtype].length}];")
502 self.header
.add_decl
("\};")
504 # const struct type_X
505 v
.add_decl
("const struct type_{c_name} type_{c_name} = \{")
506 v
.add_decl
("{self.typeids[mtype]},")
507 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
508 v
.add_decl
("{self.type_colors[mtype]},")
509 if mtype
isa MNullableType then
514 if compile_type_unanchored_table
(mtype
) then
515 v
.add_decl
("(struct types*) &unanchored_table_{c_name},")
519 v
.add_decl
("{self.type_tables[mtype].length},")
521 for stype
in self.type_tables
[mtype
] do
522 if stype
== null then
523 v
.add_decl
("-1, /* empty */")
525 v
.add_decl
("{self.typeids[stype]}, /* {stype} */")
532 protected fun compile_type_fts_table
(mtype
: MType): Bool do
534 var mclass_type
: MClassType
535 if mtype
isa MNullableType then
536 mclass_type
= mtype
.mtype
.as(MClassType)
538 mclass_type
= mtype
.as(MClassType)
540 if self.ft_tables
[mclass_type
.mclass
].is_empty
then return false
542 # extern const struct fst_table_X fst_table_X
543 self.header
.add_decl
("extern const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name};")
544 self.header
.add_decl
("struct fts_table_{mtype.c_name} \{")
545 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
546 self.header
.add_decl
("int mask;")
548 self.header
.add_decl
("struct type *types[{self.ft_tables[mclass_type.mclass].length}];")
549 self.header
.add_decl
("\};")
551 # const struct fts_table_X fts_table_X
553 v
.add_decl
("const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name} = \{")
554 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
555 v
.add_decl
("{self.ft_masks[mclass_type.mclass]},")
558 for ft
in self.ft_tables
[mclass_type
.mclass
] do
560 v
.add_decl
("NULL, /* empty */")
563 if ft
.mclass
== mclass_type
.mclass
then
564 ntype
= mclass_type
.arguments
[ft
.rank
]
566 ntype
= ft
.anchor_to
(self.mainmodule
, mclass_type
)
568 if self.typeids
.has_key
(ntype
) then
569 v
.add_decl
("(struct type*)&type_{ntype.c_name}, /* {ft} ({ntype}) */")
571 v
.add_decl
("NULL, /* empty ({ft} not a live type) */")
580 protected fun compile_type_vts_table
(mtype
: MType): Bool do
582 var mclass_type
: MClassType
583 if mtype
isa MNullableType then
584 mclass_type
= mtype
.mtype
.as(MClassType)
586 mclass_type
= mtype
.as(MClassType)
588 if self.vt_tables
[mclass_type
.mclass
].is_empty
then return false
590 # extern const struct vts_table_X vts_table_X
591 self.header
.add_decl
("extern const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name};")
592 self.header
.add_decl
("struct vts_table_{mtype.c_name} \{")
593 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
594 self.header
.add_decl
("int mask;")
596 self.header
.add_decl
("struct type *types[{self.vt_tables[mclass_type.mclass].length}];")
597 self.header
.add_decl
("\};")
599 # const struct vts_table_X vts_table_X
601 v
.add_decl
("const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name} = \{")
602 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
603 v
.add_decl
("{vt_masks[mclass_type.mclass]},")
607 for vt
in self.vt_tables
[mclass_type
.mclass
] do
609 v
.add_decl
("NULL, /* empty */")
612 if bound
== null then
613 #FIXME how can a bound be null here ?
614 print
"No bound found for virtual type {vt} ?"
618 if bound
isa MNullableType then
620 is_nullable
= "nullable_"
622 if bound
isa MVirtualType then
623 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
624 else if bound
isa MParameterType then
625 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
626 else if bound
isa MGenericType and bound
.need_anchor
then
627 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
628 else if bound
isa MClassType then
630 print
"NOT YET IMPLEMENTED: mtype_to_livetype with type: {bound}"
634 if self.typeids
.has_key
(bound
) then
635 v
.add_decl
("(struct type*)&type_{is_nullable}{bound.c_name}, /* {bound} */")
637 v
.add_decl
("NULL, /* dead type {bound} */")
647 fun compile_type_unanchored_table
(mtype
: MType): Bool do
649 var mclass_type
: MClassType
650 if mtype
isa MNullableType then
651 mclass_type
= mtype
.mtype
.as(MClassType)
653 mclass_type
= mtype
.as(MClassType)
655 if not self.unanchored_types_tables
.has_key
(mclass_type
) then return false
657 # extern const struct unanchored_table_X unanchored_table_X
658 self.header
.add_decl
("extern const struct unanchored_table_{mtype.c_name} unanchored_table_{mtype.c_name};")
660 self.header
.add_decl
("struct unanchored_table_{mtype.c_name} \{")
661 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
662 self.header
.add_decl
("int mask;")
664 self.header
.add_decl
("struct type *types[{self.unanchored_types_tables[mclass_type].length}];")
665 self.header
.add_decl
("\};")
667 # const struct fts_table_X fts_table_X
669 v
.add_decl
("const struct unanchored_table_{mtype.c_name} unanchored_table_{mtype.c_name} = \{")
670 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
671 v
.add_decl
("{self.unanchored_types_masks[mclass_type]},")
674 for t
in self.unanchored_types_tables
[mclass_type
] do
676 v
.add_decl
("NULL, /* empty */")
678 # The table stores the result of the type resolution
679 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
680 # the value stored is tv.
681 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
682 # FIXME: What typeids means here? How can a tv not be live?
683 if self.typeids
.has_key
(tv
) then
684 v
.add_decl
("(struct type*)&type_{tv.c_name}, /* {t}: {tv} */")
686 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
695 # Globally compile the table of the class mclass
696 # In a link-time optimisation compiler, tables are globally computed
697 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
698 fun compile_class_to_c
(mclass
: MClass)
700 var mtype
= mclass
.intro
.bound_mtype
701 var c_name
= mclass
.c_name
703 var vft
= self.method_tables
[mclass
]
704 var attrs
= self.attr_tables
[mclass
]
707 v
.add_decl
("/* runtime class {c_name} */")
708 var idnum
= classids
.length
709 var idname
= "ID_" + c_name
710 self.classids
[mtype
] = idname
711 #self.header.add_decl("#define {idname} {idnum} /* {c_name} */")
713 self.header
.add_decl
("struct class_{c_name} \{")
714 self.header
.add_decl
("int box_kind;")
715 self.header
.add_decl
("nitmethod_t vft[{vft.length}];")
716 self.header
.add_decl
("\};")
719 self.header
.add_decl
("extern const struct class_{c_name} class_{c_name};")
720 v
.add_decl
("const struct class_{c_name} class_{c_name} = \{")
721 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
723 for i
in [0 .. vft
.length
[ do
724 var mpropdef
= vft
[i
]
725 if mpropdef
== null then
726 v
.add_decl
("NULL, /* empty */")
728 if true or mpropdef
.mclassdef
.bound_mtype
.ctype
!= "val*" then
729 v
.add_decl
("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
731 v
.add_decl
("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
738 if mtype
.ctype
!= "val*" then
739 #Build instance struct
740 self.header
.add_decl
("struct instance_{c_name} \{")
741 self.header
.add_decl
("const struct type *type;")
742 self.header
.add_decl
("const struct class *class;")
743 self.header
.add_decl
("{mtype.ctype} value;")
744 self.header
.add_decl
("\};")
746 if not self.runtime_type_analysis
.live_types
.has
(mtype
) then return
748 self.header
.add_decl
("val* BOX_{c_name}({mtype.ctype});")
749 v
.add_decl
("/* allocate {mtype} */")
750 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
751 v
.add
("struct instance_{c_name}*res = GC_MALLOC(sizeof(struct instance_{c_name}));")
752 v
.add
("res->type = (struct type*) &type_{c_name};")
753 v
.add
("res->class = (struct class*) &class_{c_name};")
754 v
.add
("res->value = value;")
755 v
.add
("return (val*)res;")
760 var is_native_array
= mclass
.name
== "NativeArray"
763 if is_native_array
then
764 sig
= "int length, struct type* type"
766 sig
= "struct type* type"
769 #Build instance struct
770 #extern const struct instance_array__NativeArray instance_array__NativeArray;
771 self.header
.add_decl
("struct instance_{c_name} \{")
772 self.header
.add_decl
("const struct type *type;")
773 self.header
.add_decl
("const struct class *class;")
774 self.header
.add_decl
("nitattribute_t attrs[{attrs.length}];")
775 if is_native_array
then
776 # NativeArrays are just a instance header followed by an array of values
777 self.header
.add_decl
("val* values[0];")
779 self.header
.add_decl
("\};")
782 self.header
.add_decl
("{mtype.ctype} NEW_{c_name}({sig});")
783 v
.add_decl
("/* allocate {mtype} */")
784 v
.add_decl
("{mtype.ctype} NEW_{c_name}({sig}) \{")
785 var res
= v
.new_named_var
(mtype
, "self")
787 if is_native_array
then
788 var mtype_elt
= mtype
.arguments
.first
789 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
791 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
793 v
.add
("{res}->type = type;")
794 if v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then
795 v
.add
("if(type == NULL) \{")
796 v
.add_abort
("type null")
798 v
.add
("if(type->unanchored_table == NULL) \{")
799 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", type->name);")
800 v
.add_abort
("type dead")
803 v
.add
("{res}->class = (struct class*) &class_{c_name};")
805 self.generate_init_attr
(v
, res
, mtype
)
806 v
.add
("return {res};")
809 generate_check_init_instance
(mtype
)
812 redef fun generate_check_init_instance
(mtype
)
814 if self.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
816 var v
= self.new_visitor
817 var c_name
= mtype
.mclass
.c_name
818 var res
= new RuntimeVariable("self", mtype
, mtype
)
819 self.header
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype});")
820 v
.add_decl
("/* allocate {mtype} */")
821 v
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype} {res}) \{")
822 self.generate_check_attr
(v
, res
, mtype
)
826 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
830 redef fun display_stats
833 if self.modelbuilder
.toolcontext
.opt_typing_table_metrics
.value
then
840 print
"# size of tables"
841 print
"\trs size\trs hole\tst size\tst hole"
846 var rtables
= unanchored_types_tables
847 if rtables
!= null then
848 for unanch
, table
in rtables
do
849 rt_table
+= table
.length
850 for e
in table
do if e
== null then rt_holes
+= 1
854 var ttables
= type_tables
855 if ttables
!= null then
856 for t
, table
in ttables
do
857 st_table
+= table
.length
858 for e
in table
do if e
== null then st_holes
+= 1
861 print
"\t{rt_table}\t{rt_holes}\t{st_table}\t{st_holes}"
865 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
866 class SeparateCompilerVisitor
867 super AbstractCompilerVisitor
869 redef type COMPILER: SeparateCompiler
871 redef fun adapt_signature
(m
, args
)
873 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
874 var recv
= args
.first
875 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
876 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
878 for i
in [0..msignature
.arity
[ do
879 var t
= msignature
.mparameters
[i
].mtype
880 if i
== msignature
.vararg_rank
then
883 args
[i
+1] = self.autobox
(args
[i
+1], t
)
887 redef fun autobox
(value
, mtype
)
889 if value
.mtype
== mtype
then
891 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
893 else if value
.mtype
.ctype
== "val*" then
894 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
895 else if mtype
.ctype
== "val*" then
896 var valtype
= value
.mtype
.as(MClassType)
897 var res
= self.new_var
(mtype
)
898 if not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
899 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
900 self.add
("printf(\"Dead code executed
!\\n\
"); exit(1);")
903 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
906 # Bad things will appen!
907 var res
= self.new_var
(mtype
)
908 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
909 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); exit(1);")
914 # Return a C expression returning the runtime type structure of the value
915 # The point of the method is to works also with primitives types.
916 fun type_info
(value
: RuntimeVariable): String
918 if value
.mtype
.ctype
== "val*" then
919 return "{value}->type"
921 return "(&type_{value.mtype.c_name})"
925 redef fun send
(mmethod
, arguments
)
927 if arguments
.first
.mcasttype
.ctype
!= "val*" then
928 return self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
931 var res
: nullable RuntimeVariable
932 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
933 var ret
= msignature
.return_mtype
934 if mmethod
.is_new
then
935 ret
= arguments
.first
.mtype
936 res
= self.new_var
(ret
)
937 else if ret
== null then
940 res
= self.new_var
(ret
)
946 var recv
= arguments
.first
949 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
950 for i
in [0..msignature
.arity
[ do
951 var a
= arguments
[i
+1]
952 var t
= msignature
.mparameters
[i
].mtype
953 if i
== msignature
.vararg_rank
then
954 t
= arguments
[i
+1].mcasttype
956 s
.append
(", {t.ctype}")
957 a
= self.autobox
(a
, t
)
961 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
962 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
964 self.add
("if ({recv} == NULL) \{")
965 if mmethod
.name
== "==" then
967 var arg
= arguments
[1]
968 if arg
.mcasttype
isa MNullableType then
969 self.add
("{res} = ({arg} == NULL);")
970 else if arg
.mcasttype
isa MNullType then
971 self.add
("{res} = 1; /* is null */")
973 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
975 else if mmethod
.name
== "!=" then
977 var arg
= arguments
[1]
978 if arg
.mcasttype
isa MNullableType then
979 self.add
("{res} = ({arg} != NULL);")
980 else if arg
.mcasttype
isa MNullType then
981 self.add
("{res} = 0; /* is null */")
983 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
986 self.add_abort
("Reciever is null")
988 self.add
("\} else \{")
990 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
992 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
993 var arg
= arguments
[1]
994 if arg
.mcasttype
isa MNullType then
995 if mmethod
.name
== "==" then
996 self.add
("{res} = 0; /* arg is null but recv is not */")
998 self.add
("{res} = 1; /* arg is null and recv is not */")
1008 if ret
== null then r
= "void" else r
= ret
.ctype
1009 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{mmethod.const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
1012 self.add
("{res} = {call};")
1024 redef fun call
(mmethoddef
, recvtype
, arguments
)
1026 var res
: nullable RuntimeVariable
1027 var ret
= mmethoddef
.msignature
.return_mtype
1028 if mmethoddef
.mproperty
.is_new
then
1029 ret
= arguments
.first
.mtype
1030 res
= self.new_var
(ret
)
1031 else if ret
== null then
1034 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1035 res
= self.new_var
(ret
)
1038 if self.compiler
.modelbuilder
.mpropdef2npropdef
.has_key
(mmethoddef
) and
1039 self.compiler
.modelbuilder
.mpropdef2npropdef
[mmethoddef
] isa AInternMethPropdef and
1040 not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
then
1041 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
1042 frame
.returnlabel
= self.get_name
("RET_LABEL")
1043 frame
.returnvar
= res
1044 var old_frame
= self.frame
1046 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) */")
1047 mmethoddef
.compile_inside_to_c
(self, arguments
)
1048 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1050 self.frame
= old_frame
1055 self.adapt_signature
(mmethoddef
, arguments
)
1058 self.add
("{mmethoddef.c_name}({arguments.join(", ")});")
1061 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1067 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1069 # A vararg must be stored into an new array
1070 # The trick is that the dymaic type of the array may depends on the receiver
1071 # of the method (ie recv) if the static type is unresolved
1072 # This is more complex than usual because the unanchored type must not be resolved
1073 # with the current receiver (ie self).
1074 # Therefore to isolate the resolution from self, a local Frame is created.
1075 # One can see this implementation as an inlined method of the receiver whose only
1076 # job is to allocate the array
1077 var old_frame
= self.frame
1078 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1080 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1081 var res
= self.array_instance
(varargs
, elttype
)
1082 self.frame
= old_frame
1086 redef fun isset_attribute
(a
, recv
)
1088 self.check_recv_notnull
(recv
)
1089 var res
= self.new_var
(bool_type
)
1091 # What is the declared type of the attribute?
1092 var mtype
= a
.intro
.static_mtype
.as(not null)
1093 var intromclassdef
= a
.intro
.mclassdef
1094 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1096 if mtype
isa MNullableType then
1097 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1101 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1102 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1105 if mtype
.ctype
== "val*" then
1106 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1108 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1114 redef fun read_attribute
(a
, recv
)
1116 self.check_recv_notnull
(recv
)
1118 # What is the declared type of the attribute?
1119 var ret
= a
.intro
.static_mtype
.as(not null)
1120 var intromclassdef
= a
.intro
.mclassdef
1121 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1123 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1124 # Get the attribute or a box (ie. always a val*)
1125 var cret
= self.object_type
.as_nullable
1126 var res
= self.new_var
(cret
)
1129 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1131 # Check for Uninitialized attribute
1132 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1133 self.add
("if ({res} == NULL) \{")
1134 self.add_abort
("Uninitialized attribute {a.name}")
1138 # Return the attribute or its unboxed version
1139 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1140 return self.autobox
(res
, ret
)
1142 var res
= self.new_var
(ret
)
1143 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1145 # Check for Uninitialized attribute
1146 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1147 self.add
("if ({res} == NULL) \{")
1148 self.add_abort
("Uninitialized attribute {a.name}")
1156 redef fun write_attribute
(a
, recv
, value
)
1158 self.check_recv_notnull
(recv
)
1160 # What is the declared type of the attribute?
1161 var mtype
= a
.intro
.static_mtype
.as(not null)
1162 var intromclassdef
= a
.intro
.mclassdef
1163 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1165 # Adapt the value to the declared type
1166 value
= self.autobox
(value
, mtype
)
1168 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1169 var attr
= "{recv}->attrs[{a.const_color}]"
1170 if mtype
.ctype
!= "val*" then
1171 assert mtype
isa MClassType
1172 # The attribute is primitive, thus we store it in a box
1173 # The trick is to create the box the first time then resuse the box
1174 self.add
("if ({attr} != NULL) \{")
1175 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1176 self.add
("\} else \{")
1177 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1178 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1181 # The attribute is not primitive, thus store it direclty
1182 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1185 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1189 # Build livetype structure retrieving
1190 # ENSURE: mtype.need_anchor
1191 fun retrieve_anchored_livetype
(mtype
: MGenericType, buffer
: Buffer) do
1192 assert mtype
.need_anchor
1194 var compiler
= self.compiler
1195 for ft
in mtype
.arguments
do
1199 if ntype
isa MNullableType then
1203 var recv
= self.frame
.arguments
.first
1204 var recv_type_info
= self.type_info
(recv
)
1205 if ntype
isa MParameterType then
1206 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1207 buffer
.append
("[{recv_type_info}->fts_table->types[HASH({recv_type_info}->fts_table->mask, {ntype.const_color})]->livecolor]")
1209 buffer
.append
("[{recv_type_info}->fts_table->types[{ntype.const_color}]->livecolor]")
1211 else if ntype
isa MVirtualType then
1212 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1213 buffer
.append
("[{recv_type_info}->vts_table->types[HASH({recv_type_info}->vts_table->mask, {ntype.mproperty.const_color})]->livecolor]")
1215 buffer
.append
("[{recv_type_info}->vts_table->types[{ntype.mproperty.const_color}]->livecolor]")
1217 else if ntype
isa MGenericType and ntype
.need_anchor
then
1218 var bbuff
= new Buffer
1219 retrieve_anchored_livetype
(ntype
, bbuff
)
1220 buffer
.append
("[livetypes_{ntype.mclass.c_name}{bbuff.to_s}->livecolor]")
1221 else if ntype
isa MClassType then
1222 compiler
.undead_types
.add
(ft
)
1223 buffer
.append
("[type_{ft.c_name}.livecolor]")
1225 self.add
("printf(\"NOT YET IMPLEMENTED: init_instance
(%s
, {mtype}).\\n\
", \"{ft}\
"); exit(1);")
1230 redef fun init_instance
(mtype
)
1232 var compiler
= self.compiler
1233 if mtype
isa MGenericType and mtype
.need_anchor
then
1234 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1235 var recv
= self.frame
.arguments
.first
1236 var recv_type_info
= self.type_info
(recv
)
1237 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1238 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->unanchored_table->types[HASH({recv_type_info}->unanchored_table->mask, {mtype.const_color})])", mtype
)
1240 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->unanchored_table->types[{mtype.const_color}])", mtype
)
1243 compiler
.undead_types
.add
(mtype
)
1244 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) &type_{mtype.c_name})", mtype
)
1247 redef fun check_init_instance
(value
, mtype
)
1249 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
1250 self.add
("CHECK_NEW_{mtype.mclass.c_name}({value});")
1253 redef fun type_test
(value
, mtype
, tag
)
1255 self.add
("/* {value.inspect} isa {mtype} */")
1256 var compiler
= self.compiler
1258 var recv
= self.frame
.arguments
.first
1259 var recv_type_info
= self.type_info
(recv
)
1261 var res
= self.new_var
(bool_type
)
1263 var cltype
= self.get_name
("cltype")
1264 self.add_decl
("int {cltype};")
1265 var idtype
= self.get_name
("idtype")
1266 self.add_decl
("int {idtype};")
1268 var maybe_null
= self.maybe_null
(value
)
1269 var accept_null
= "0"
1271 if ntype
isa MNullableType then
1276 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1277 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1278 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1279 self.compiler
.count_type_test_skipped
[tag
] += 1
1280 self.add
("count_type_test_skipped_{tag}++;")
1285 if ntype
.need_anchor
then
1286 var type_struct
= self.get_name
("type_struct")
1287 self.add_decl
("struct type* {type_struct};")
1289 # Either with unanchored_table with a direct resolution
1290 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, ntype
)
1291 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1292 self.add
("{type_struct} = {recv_type_info}->unanchored_table->types[HASH({recv_type_info}->unanchored_table->mask, {ntype.const_color})];")
1294 self.add
("{type_struct} = {recv_type_info}->unanchored_table->types[{ntype.const_color}];")
1296 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1297 self.compiler
.count_type_test_unresolved
[tag
] += 1
1298 self.add
("count_type_test_unresolved_{tag}++;")
1300 self.add
("{cltype} = {type_struct}->color;")
1301 self.add
("{idtype} = {type_struct}->id;")
1302 if maybe_null
and accept_null
== "0" then
1303 var is_nullable
= self.get_name
("is_nullable")
1304 self.add_decl
("short int {is_nullable};")
1305 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1306 accept_null
= is_nullable
.to_s
1308 else if ntype
isa MClassType then
1309 compiler
.undead_types
.add
(mtype
)
1310 self.add
("{cltype} = type_{mtype.c_name}.color;")
1311 self.add
("{idtype} = type_{mtype.c_name}.id;")
1312 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1313 self.compiler
.count_type_test_resolved
[tag
] += 1
1314 self.add
("count_type_test_resolved_{tag}++;")
1317 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); exit(1);")
1320 # check color is in table
1322 self.add
("if({value} == NULL) \{")
1323 self.add
("{res} = {accept_null};")
1324 self.add
("\} else \{")
1326 var value_type_info
= self.type_info
(value
)
1327 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1328 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1330 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1331 self.add
("{res} = 0;")
1332 self.add
("\} else \{")
1333 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1342 redef fun is_same_type_test
(value1
, value2
)
1344 var res
= self.new_var
(bool_type
)
1345 # Swap values to be symetric
1346 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1351 if value1
.mtype
.ctype
!= "val*" then
1352 if value2
.mtype
== value1
.mtype
then
1353 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1354 else if value2
.mtype
.ctype
!= "val*" then
1355 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1357 var mtype1
= value1
.mtype
.as(MClassType)
1358 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name}); /* is_same_type_test */")
1361 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1366 redef fun class_name_string
(value
)
1368 var res
= self.get_name
("var_class_name")
1369 self.add_decl
("const char* {res};")
1370 if value
.mtype
.ctype
== "val*" then
1371 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1373 self.add
"{res} = type_{value.mtype.c_name}.name;"
1378 redef fun equal_test
(value1
, value2
)
1380 var res
= self.new_var
(bool_type
)
1381 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1386 if value1
.mtype
.ctype
!= "val*" then
1387 if value2
.mtype
== value1
.mtype
then
1388 self.add
("{res} = {value1} == {value2};")
1389 else if value2
.mtype
.ctype
!= "val*" then
1390 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1392 var mtype1
= value1
.mtype
.as(MClassType)
1393 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name});")
1394 self.add
("if ({res}) \{")
1395 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1400 var maybe_null
= true
1401 var test
= new Array[String]
1402 var t1
= value1
.mcasttype
1403 if t1
isa MNullableType then
1404 test
.add
("{value1} != NULL")
1409 var t2
= value2
.mcasttype
1410 if t2
isa MNullableType then
1411 test
.add
("{value2} != NULL")
1417 var incompatible
= false
1419 if t1
.ctype
!= "val*" then
1422 # No need to compare class
1423 else if t2
.ctype
!= "val*" then
1425 else if can_be_primitive
(value2
) then
1426 test
.add
("{value1}->class == {value2}->class")
1430 else if t2
.ctype
!= "val*" then
1432 if can_be_primitive
(value1
) then
1433 test
.add
("{value1}->class == {value2}->class")
1441 if incompatible
then
1443 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1446 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1450 if primitive
!= null then
1451 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1452 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1453 test
.add
("{value1}->class == {value2}->class")
1454 var s
= new Array[String]
1455 for t
, v
in self.compiler
.box_kinds
do
1456 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1458 test
.add
("({s.join(" || ")})")
1460 self.add
("{res} = {value1} == {value2};")
1463 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1467 fun can_be_primitive
(value
: RuntimeVariable): Bool
1469 var t
= value
.mcasttype
1470 if t
isa MNullableType then t
= t
.mtype
1471 if not t
isa MClassType then return false
1472 var k
= t
.mclass
.kind
1473 return k
== interface_kind
or t
.ctype
!= "val*"
1476 fun maybe_null
(value
: RuntimeVariable): Bool
1478 var t
= value
.mcasttype
1479 return t
isa MNullableType or t
isa MNullType
1482 redef fun array_instance
(array
, elttype
)
1484 var nclass
= self.get_class
("NativeArray")
1485 var arrayclass
= self.get_class
("Array")
1486 var arraytype
= arrayclass
.get_mtype
([elttype
])
1487 var res
= self.init_instance
(arraytype
)
1488 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1489 var length
= self.int_instance
(array
.length
)
1490 var nat
= native_array_instance
(elttype
, length
)
1491 for i
in [0..array
.length
[ do
1492 var r
= self.autobox
(array
[i
], self.object_type
)
1493 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1495 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1496 self.check_init_instance
(res
, arraytype
)
1501 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1503 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1504 assert mtype
isa MGenericType
1505 var compiler
= self.compiler
1506 if mtype
.need_anchor
then
1507 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1508 var recv
= self.frame
.arguments
.first
1509 var recv_type_info
= self.type_info
(recv
)
1510 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1511 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->unanchored_table->types[HASH({recv_type_info}->unanchored_table->mask, {mtype.const_color})])", mtype
)
1513 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->unanchored_table->types[{mtype.const_color}])", mtype
)
1516 compiler
.undead_types
.add
(mtype
)
1517 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) &type_{mtype.c_name})", mtype
)
1520 redef fun native_array_def
(pname
, ret_type
, arguments
)
1522 var elttype
= arguments
.first
.mtype
1523 var nclass
= self.get_class
("NativeArray")
1524 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1525 if pname
== "[]" then
1526 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1528 else if pname
== "[]=" then
1529 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1531 else if pname
== "copy_to" then
1532 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1533 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1538 redef fun calloc_array
(ret_type
, arguments
)
1540 var mclass
= self.get_class
("ArrayCapable")
1541 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1542 var res
= self.native_array_instance
(ft
, arguments
[1])
1546 fun link_unanchored_type
(mclassdef
: MClassDef, mtype
: MType) do
1547 assert mtype
.need_anchor
1548 var compiler
= self.compiler
1549 if not compiler
.live_unanchored_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1550 compiler
.live_unanchored_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1552 compiler
.live_unanchored_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1556 # The C function associated to a methoddef separately compiled
1557 class SeparateRuntimeFunction
1558 super AbstractRuntimeFunction
1560 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1562 redef fun to_s
do return self.mmethoddef
.to_s
1564 redef fun compile_to_c
(compiler
)
1566 var mmethoddef
= self.mmethoddef
1568 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1569 var v
= compiler
.new_visitor
1570 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1571 var arguments
= new Array[RuntimeVariable]
1572 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1575 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1577 var sig
= new Buffer
1578 var comment
= new Buffer
1579 var ret
= msignature
.return_mtype
1581 sig
.append
("{ret.ctype} ")
1582 else if mmethoddef
.mproperty
.is_new
then
1584 sig
.append
("{ret.ctype} ")
1588 sig
.append
(self.c_name
)
1589 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1590 comment
.append
("(self: {selfvar}")
1591 arguments
.add
(selfvar
)
1592 for i
in [0..msignature
.arity
[ do
1593 var mtype
= msignature
.mparameters
[i
].mtype
1594 if i
== msignature
.vararg_rank
then
1595 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1597 comment
.append
(", {mtype}")
1598 sig
.append
(", {mtype.ctype} p{i}")
1599 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1600 arguments
.add
(argvar
)
1605 comment
.append
(": {ret}")
1607 compiler
.header
.add_decl
("{sig};")
1609 v
.add_decl
("/* method {self} for {comment} */")
1610 v
.add_decl
("{sig} \{")
1612 frame
.returnvar
= v
.new_var
(ret
)
1614 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1616 if recv
!= arguments
.first
.mtype
then
1617 #print "{self} {recv} {arguments.first}"
1619 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1621 v
.add
("{frame.returnlabel.as(not null)}:;")
1623 v
.add
("return {frame.returnvar.as(not null)};")
1629 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1630 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1631 class VirtualRuntimeFunction
1632 super AbstractRuntimeFunction
1634 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1636 redef fun to_s
do return self.mmethoddef
.to_s
1638 redef fun compile_to_c
(compiler
)
1640 var mmethoddef
= self.mmethoddef
1642 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1643 var v
= compiler
.new_visitor
1644 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1645 var arguments
= new Array[RuntimeVariable]
1646 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1649 var sig
= new Buffer
1650 var comment
= new Buffer
1652 # Because the function is virtual, the signature must match the one of the original class
1653 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1654 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1655 var ret
= msignature
.return_mtype
1657 sig
.append
("{ret.ctype} ")
1658 else if mmethoddef
.mproperty
.is_new
then
1660 sig
.append
("{ret.ctype} ")
1664 sig
.append
(self.c_name
)
1665 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1666 comment
.append
("(self: {selfvar}")
1667 arguments
.add
(selfvar
)
1668 for i
in [0..msignature
.arity
[ do
1669 var mtype
= msignature
.mparameters
[i
].mtype
1670 if i
== msignature
.vararg_rank
then
1671 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1673 comment
.append
(", {mtype}")
1674 sig
.append
(", {mtype.ctype} p{i}")
1675 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1676 arguments
.add
(argvar
)
1681 comment
.append
(": {ret}")
1683 compiler
.header
.add_decl
("{sig};")
1685 v
.add_decl
("/* method {self} for {comment} */")
1686 v
.add_decl
("{sig} \{")
1688 frame
.returnvar
= v
.new_var
(ret
)
1690 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1692 if recv
!= arguments
.first
.mtype
then
1693 #print "{self} {recv} {arguments.first}"
1695 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1697 v
.add
("{frame.returnlabel.as(not null)}:;")
1699 v
.add
("return {frame.returnvar.as(not null)};")
1705 redef fun call
(v
, arguments
) do abort
1709 fun const_color
: String do return "COLOR_{c_name}"
1712 redef class MProperty
1713 fun const_color
: String do return "COLOR_{c_name}"