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
21 # Add separate compiler specific options
22 redef class ToolContext
24 var opt_separate
: OptionBool = new OptionBool("Use separate compilation", "--separate")
26 var opt_no_inline_intern
: OptionBool = new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
27 # --no-union-attribute
28 var opt_no_union_attribute
: OptionBool = new OptionBool("Put primitive attibutes in a box instead of an union", "--no-union-attribute")
29 # --no-shortcut-equate
30 var opt_no_shortcut_equate
: OptionBool = new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
31 # --inline-coloring-numbers
32 var opt_inline_coloring_numbers
: OptionBool = new OptionBool("Inline colors and ids", "--inline-coloring-numbers")
33 # --use-naive-coloring
34 var opt_bm_typing
: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
35 # --use-mod-perfect-hashing
36 var opt_phmod_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
37 # --use-and-perfect-hashing
38 var opt_phand_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
39 # --generic-resolution-tree
40 var opt_typing_table_metrics
: OptionBool = new OptionBool("Enable static size measuring of tables used for typing and resolution", "--typing-table-metrics")
45 self.option_context
.add_option
(self.opt_separate
)
46 self.option_context
.add_option
(self.opt_no_inline_intern
)
47 self.option_context
.add_option
(self.opt_no_union_attribute
)
48 self.option_context
.add_option
(self.opt_no_shortcut_equate
)
49 self.option_context
.add_option
(self.opt_inline_coloring_numbers
)
50 self.option_context
.add_option
(self.opt_bm_typing
)
51 self.option_context
.add_option
(self.opt_phmod_typing
)
52 self.option_context
.add_option
(self.opt_phand_typing
)
53 self.option_context
.add_option
(self.opt_typing_table_metrics
)
57 redef class ModelBuilder
58 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: RapidTypeAnalysis)
61 self.toolcontext
.info
("*** COMPILING TO C ***", 1)
63 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
64 compiler
.compile_header
66 # compile class structures
67 for m
in mainmodule
.in_importation
.greaters
do
68 for mclass
in m
.intro_mclasses
do
69 compiler
.compile_class_to_c
(mclass
)
73 # The main function of the C
75 compiler
.compile_main_function
78 for m
in mainmodule
.in_importation
.greaters
do
80 compiler
.compile_module_to_c
(m
)
83 # compile live & cast type structures
85 var mtypes
= compiler
.do_type_coloring
87 compiler
.compile_type_to_c
(t
)
90 compiler
.display_stats
92 write_and_make
(compiler
)
96 # Singleton that store the knowledge about the separate compilation process
97 class SeparateCompiler
98 super AbstractCompiler
101 protected var classids
: HashMap[MClassType, String] = new HashMap[MClassType, String]
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 protected var typeids
: HashMap[MType, Int] protected writable = new HashMap[MType, Int]
110 private var type_colors
: Map[MType, Int] = typeids
111 private var type_tables
: nullable Map[MType, Array[nullable MType]] = null
113 private var live_unanchored_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
115 private var unanchored_types_colors
: nullable Map[MType, Int]
116 private var unanchored_types_tables
: nullable Map[MClassType, Array[nullable MType]]
117 private var unanchored_types_masks
: nullable Map[MClassType, Int]
119 protected var class_coloring
: ClassColoring
121 protected var method_colors
: Map[MMethod, Int]
122 protected var method_tables
: Map[MClass, Array[nullable MMethodDef]]
124 protected var attr_colors
: Map[MAttribute, Int]
125 protected var attr_tables
: Map[MClass, Array[nullable MAttributeDef]]
127 protected var vt_colors
: Map[MVirtualTypeProp, Int]
128 protected var vt_tables
: Map[MClass, Array[nullable MVirtualTypeDef]]
129 protected var vt_masks
: nullable Map[MClass, Int]
131 private var ft_colors
: nullable Map[MParameterType, Int]
132 private var ft_tables
: nullable Map[MClass, Array[nullable MParameterType]]
133 private var ft_masks
: nullable Map[MClass, Int]
135 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: RapidTypeAnalysis) do
137 self.header
= new_visitor
138 self.runtime_type_analysis
= runtime_type_analysis
139 self.do_property_coloring
140 self.compile_box_kinds
143 redef fun compile_header_structs
do
144 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
145 self.compile_header_attribute_structs
146 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
148 # With unanchored_table, all live type resolution are stored in a big table: unanchored_table
149 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. */")
151 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
152 self.header
.add_decl
("struct types \{ int mask; struct type *types[1]; \}; /* a list types (used for vts, fts and unanchored lists). */")
154 self.header
.add_decl
("struct types \{ struct type *types[1]; \}; /* a list types (used for vts, fts and unanchored lists). */")
157 self.header
.add_decl
("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
160 fun compile_header_attribute_structs
162 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
163 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
165 self.header
.add_decl
("typedef union \{")
166 self.header
.add_decl
("void* val;")
167 for c
, v
in self.box_kinds
do
168 var t
= c
.mclass_type
169 self.header
.add_decl
("{t.ctype} {t.ctypename};")
171 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
175 fun compile_box_kinds
177 # Collect all bas box class
178 # FIXME: this is not completely fine with a separate compilation scheme
179 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
180 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
181 if classes
== null then continue
182 assert classes
.length
== 1 else print classes
.join
(", ")
183 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
187 var box_kinds
= new HashMap[MClass, Int]
189 fun box_kind_of
(mclass
: MClass): Int
191 if mclass
.mclass_type
.ctype
== "val*" then
193 else if mclass
.kind
== extern_kind
then
194 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
196 return self.box_kinds
[mclass
]
201 fun compile_color_consts
(colors
: Map[Object, Int]) do
202 for m
, c
in colors
do
203 if m
isa MProperty then
204 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
205 self.header
.add_decl
("#define {m.const_color} {c}")
207 self.header
.add_decl
("extern const int {m.const_color};")
208 self.header
.add
("const int {m.const_color} = {c};")
210 else if m
isa MType then
211 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
212 self.header
.add_decl
("#define {m.const_color} {c}")
214 self.header
.add_decl
("extern const int {m.const_color};")
215 self.header
.add
("const int {m.const_color} = {c};")
221 # colorize classe properties
222 fun do_property_coloring
do
225 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
226 self.class_coloring
= new ClassColoring(mainmodule
)
227 class_coloring
.colorize
(mclasses
)
230 var method_coloring
= new MethodColoring(self.class_coloring
)
231 self.method_colors
= method_coloring
.colorize
232 self.method_tables
= method_coloring
.build_property_tables
233 self.compile_color_consts
(self.method_colors
)
235 # attributes coloration
236 var attribute_coloring
= new AttributeColoring(self.class_coloring
)
237 self.attr_colors
= attribute_coloring
.colorize
238 self.attr_tables
= attribute_coloring
.build_property_tables
239 self.compile_color_consts
(self.attr_colors
)
241 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
242 self.class_coloring
= new NaiveClassColoring(mainmodule
)
243 self.class_coloring
.colorize
(mclasses
)
247 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
248 var vt_coloring
= new NaiveVTColoring(self.class_coloring
)
249 self.vt_colors
= vt_coloring
.colorize
250 self.vt_tables
= vt_coloring
.build_property_tables
251 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
252 var vt_coloring
= new VTModPerfectHashing(self.class_coloring
)
253 self.vt_colors
= vt_coloring
.colorize
254 self.vt_masks
= vt_coloring
.compute_masks
255 self.vt_tables
= vt_coloring
.build_property_tables
256 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
257 var vt_coloring
= new VTAndPerfectHashing(self.class_coloring
)
258 self.vt_colors
= vt_coloring
.colorize
259 self.vt_masks
= vt_coloring
.compute_masks
260 self.vt_tables
= vt_coloring
.build_property_tables
262 var vt_coloring
= new VTColoring(self.class_coloring
)
263 self.vt_colors
= vt_coloring
.colorize
264 self.vt_tables
= vt_coloring
.build_property_tables
266 self.compile_color_consts
(self.vt_colors
)
269 # colorize live types of the program
270 private fun do_type_coloring
: Set[MType] do
271 var mtypes
= new HashSet[MType]
272 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
273 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
274 mtypes
.add_all
(self.undead_types
)
275 for c
in self.box_kinds
.keys
do
276 mtypes
.add
(c
.mclass_type
)
279 for mtype
in mtypes
do
280 retieve_live_partial_types
(mtype
)
282 mtypes
.add_all
(self.partial_types
)
285 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
286 var sorted_mtypes
= new Array[MType].from
(mtypes
)
287 var sorter
= new ReverseTypeSorter(self.mainmodule
)
288 sorter
.sort
(sorted_mtypes
)
289 for mtype
in sorted_mtypes
do
290 self.typeids
[mtype
] = self.typeids
.length
+ 1
293 for mtype
in mtypes
do
294 self.typeids
[mtype
] = self.typeids
.length
298 # VT and FT are stored with other unresolved types in the big unanchored_tables
299 self.compile_unanchored_tables
(mtypes
)
302 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
303 var type_coloring
= new NaiveTypeColoring(self.mainmodule
)
304 self.type_colors
= type_coloring
.colorize
(mtypes
)
305 self.type_tables
= type_coloring
.build_type_tables
(mtypes
, type_colors
)
306 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
307 var type_coloring
= new TypeModPerfectHashing(self.mainmodule
)
308 self.type_colors
= type_coloring
.compute_masks
(mtypes
, typeids
)
309 self.type_tables
= type_coloring
.hash_type_tables
(mtypes
, typeids
, type_colors
)
310 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
311 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
312 var type_coloring
= new TypeAndPerfectHashing(self.mainmodule
)
313 self.type_colors
= type_coloring
.compute_masks
(mtypes
, typeids
)
314 self.type_tables
= type_coloring
.hash_type_tables
(mtypes
, typeids
, type_colors
)
315 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
317 var type_coloring
= new TypeColoring(self.mainmodule
)
318 self.type_colors
= type_coloring
.colorize
(mtypes
)
319 self.type_tables
= type_coloring
.build_type_tables
(mtypes
, type_colors
)
326 protected fun compile_unanchored_tables
(mtypes
: Set[MType]) do
327 # Unanchored_tables is used to perform a type resolution at runtime in O(1)
329 # During the visit of the body of classes, live_unanchored_types are collected
331 # Collect all live_unanchored_types (visited in the body of classes)
333 # Determinate fo each livetype what are its possible requested anchored types
334 var mtype2unanchored
= new HashMap[MClassType, Set[MType]]
335 for mtype
in self.runtime_type_analysis
.live_types
do
336 var set
= new HashSet[MType]
337 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
338 if self.live_unanchored_types
.has_key
(cd
) then
339 set
.add_all
(self.live_unanchored_types
[cd
])
342 mtype2unanchored
[mtype
] = set
345 # Compute the table layout with the prefered method
346 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
347 var unanchored_type_coloring
= new NaiveUnanchoredTypeColoring
348 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
349 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
350 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
351 var unanchored_type_coloring
= new UnanchoredTypeModPerfectHashing
352 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
353 self.unanchored_types_masks
= unanchored_type_coloring
.compute_masks
(mtype2unanchored
)
354 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
355 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
356 var unanchored_type_coloring
= new UnanchoredTypeAndPerfectHashing
357 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
358 self.unanchored_types_masks
= unanchored_type_coloring
.compute_masks
(mtype2unanchored
)
359 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
361 var unanchored_type_coloring
= new UnanchoredTypeColoring
362 self.unanchored_types_colors
= unanchored_type_coloring
.colorize
(mtype2unanchored
)
363 self.unanchored_types_tables
= unanchored_type_coloring
.build_tables
(mtype2unanchored
)
366 # Compile a C constant for each collected unanchored type.
367 # Either to a color, or to -1 if the unanchored type is dead (no live receiver can require it)
368 var all_unanchored
= new HashSet[MType]
369 for t
in self.live_unanchored_types
.values
do
370 all_unanchored
.add_all
(t
)
372 var all_unanchored_types_colors
= new HashMap[MType, Int]
373 for t
in all_unanchored
do
374 if unanchored_types_colors
.has_key
(t
) then
375 all_unanchored_types_colors
[t
] = unanchored_types_colors
[t
]
377 all_unanchored_types_colors
[t
] = -1
380 self.compile_color_consts
(all_unanchored_types_colors
)
383 #for k, v in unanchored_types_tables.as(not null) do
384 # print "{k}: {v.join(", ")}"
389 fun retieve_live_partial_types
(mtype
: MType) do
390 # add formal types arguments to mtypes
391 if mtype
isa MGenericType then
392 for ft
in mtype
.arguments
do
393 if ft
.need_anchor
then
394 print
("Why do we need anchor here ?")
397 self.partial_types
.add
(ft
)
398 retieve_live_partial_types
(ft
)
401 var mclass_type
: MClassType
402 if mtype
isa MNullableType then
403 mclass_type
= mtype
.mtype
.as(MClassType)
405 mclass_type
= mtype
.as(MClassType)
408 # add virtual types to mtypes
409 for vt
in self.vt_tables
[mclass_type
.mclass
] do
411 var anchored
= vt
.bound
.anchor_to
(self.mainmodule
, mclass_type
)
412 self.partial_types
.add
(anchored
)
417 # Separately compile all the method definitions of the module
418 fun compile_module_to_c
(mmodule
: MModule)
420 var old_module
= self.mainmodule
421 self.mainmodule
= mmodule
422 for cd
in mmodule
.mclassdefs
do
423 for pd
in cd
.mpropdefs
do
424 if not pd
isa MMethodDef then continue
425 #print "compile {pd} @ {cd} @ {mmodule}"
426 var r
= new SeparateRuntimeFunction(pd
)
428 if true or cd
.bound_mtype
.ctype
!= "val*" then
429 var r2
= new VirtualRuntimeFunction(pd
)
430 r2
.compile_to_c
(self)
434 self.mainmodule
= old_module
437 # Globaly compile the type structure of a live type
438 fun compile_type_to_c
(mtype
: MType)
440 var c_name
= mtype
.c_name
441 var v
= new SeparateCompilerVisitor(self)
442 v
.add_decl
("/* runtime type {mtype} */")
444 # extern const struct type_X
445 self.header
.add_decl
("extern const struct type_{c_name} type_{c_name};")
446 self.header
.add_decl
("struct type_{c_name} \{")
447 self.header
.add_decl
("int id;")
448 self.header
.add_decl
("const char *name;")
449 self.header
.add_decl
("int color;")
450 self.header
.add_decl
("short int is_nullable;")
451 self.header
.add_decl
("const struct types *unanchored_table;")
452 self.header
.add_decl
("int table_size;")
453 self.header
.add_decl
("int type_table[{self.type_tables[mtype].length}];")
454 self.header
.add_decl
("\};")
456 # const struct type_X
457 v
.add_decl
("const struct type_{c_name} type_{c_name} = \{")
458 v
.add_decl
("{self.typeids[mtype]},")
459 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
460 v
.add_decl
("{self.type_colors[mtype]},")
461 if mtype
isa MNullableType then
466 if compile_type_unanchored_table
(mtype
) then
467 v
.add_decl
("(struct types*) &unanchored_table_{c_name},")
471 v
.add_decl
("{self.type_tables[mtype].length},")
473 for stype
in self.type_tables
[mtype
] do
474 if stype
== null then
475 v
.add_decl
("-1, /* empty */")
477 v
.add_decl
("{self.typeids[stype]}, /* {stype} */")
484 protected fun compile_type_fts_table
(mtype
: MType): Bool do
486 var mclass_type
: MClassType
487 if mtype
isa MNullableType then
488 mclass_type
= mtype
.mtype
.as(MClassType)
490 mclass_type
= mtype
.as(MClassType)
492 if self.ft_tables
[mclass_type
.mclass
].is_empty
then return false
494 # extern const struct fst_table_X fst_table_X
495 self.header
.add_decl
("extern const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name};")
496 self.header
.add_decl
("struct fts_table_{mtype.c_name} \{")
497 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
498 self.header
.add_decl
("int mask;")
500 self.header
.add_decl
("struct type *types[{self.ft_tables[mclass_type.mclass].length}];")
501 self.header
.add_decl
("\};")
503 # const struct fts_table_X fts_table_X
505 v
.add_decl
("const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name} = \{")
506 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
507 v
.add_decl
("{self.ft_masks[mclass_type.mclass]},")
510 for ft
in self.ft_tables
[mclass_type
.mclass
] do
512 v
.add_decl
("NULL, /* empty */")
515 if ft
.mclass
== mclass_type
.mclass
then
516 ntype
= mclass_type
.arguments
[ft
.rank
]
518 ntype
= ft
.anchor_to
(self.mainmodule
, mclass_type
)
520 if self.typeids
.has_key
(ntype
) then
521 v
.add_decl
("(struct type*)&type_{ntype.c_name}, /* {ft} ({ntype}) */")
523 v
.add_decl
("NULL, /* empty ({ft} not a live type) */")
532 protected fun compile_type_vts_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.vt_tables
[mclass_type
.mclass
].is_empty
then return false
542 # extern const struct vts_table_X vts_table_X
543 self.header
.add_decl
("extern const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name};")
544 self.header
.add_decl
("struct vts_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.vt_tables[mclass_type.mclass].length}];")
549 self.header
.add_decl
("\};")
551 # const struct vts_table_X vts_table_X
553 v
.add_decl
("const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name} = \{")
554 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
555 v
.add_decl
("{vt_masks[mclass_type.mclass]},")
559 for vt
in self.vt_tables
[mclass_type
.mclass
] do
561 v
.add_decl
("NULL, /* empty */")
564 if bound
== null then
565 #FIXME how can a bound be null here ?
566 print
"No bound found for virtual type {vt} ?"
570 if bound
isa MNullableType then
572 is_nullable
= "nullable_"
574 if bound
isa MVirtualType then
575 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
576 else if bound
isa MParameterType then
577 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
578 else if bound
isa MGenericType and bound
.need_anchor
then
579 bound
= bound
.anchor_to
(self.mainmodule
, mclass_type
)
580 else if bound
isa MClassType then
582 print
"NOT YET IMPLEMENTED: mtype_to_livetype with type: {bound}"
586 if self.typeids
.has_key
(bound
) then
587 v
.add_decl
("(struct type*)&type_{is_nullable}{bound.c_name}, /* {bound} */")
589 v
.add_decl
("NULL, /* dead type {bound} */")
599 fun compile_type_unanchored_table
(mtype
: MType): Bool do
601 var mclass_type
: MClassType
602 if mtype
isa MNullableType then
603 mclass_type
= mtype
.mtype
.as(MClassType)
605 mclass_type
= mtype
.as(MClassType)
607 if not self.unanchored_types_tables
.has_key
(mclass_type
) then return false
609 # extern const struct unanchored_table_X unanchored_table_X
610 self.header
.add_decl
("extern const struct unanchored_table_{mtype.c_name} unanchored_table_{mtype.c_name};")
612 self.header
.add_decl
("struct unanchored_table_{mtype.c_name} \{")
613 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
614 self.header
.add_decl
("int mask;")
616 self.header
.add_decl
("struct type *types[{self.unanchored_types_tables[mclass_type].length}];")
617 self.header
.add_decl
("\};")
619 # const struct fts_table_X fts_table_X
621 v
.add_decl
("const struct unanchored_table_{mtype.c_name} unanchored_table_{mtype.c_name} = \{")
622 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
623 v
.add_decl
("{self.unanchored_types_masks[mclass_type]},")
626 for t
in self.unanchored_types_tables
[mclass_type
] do
628 v
.add_decl
("NULL, /* empty */")
630 # The table stores the result of the type resolution
631 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
632 # the value stored is tv.
633 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
634 # FIXME: What typeids means here? How can a tv not be live?
635 if self.typeids
.has_key
(tv
) then
636 v
.add_decl
("(struct type*)&type_{tv.c_name}, /* {t}: {tv} */")
638 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
647 # Globally compile the table of the class mclass
648 # In a link-time optimisation compiler, tables are globally computed
649 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
650 fun compile_class_to_c
(mclass
: MClass)
652 var mtype
= mclass
.intro
.bound_mtype
653 var c_name
= mclass
.c_name
655 var vft
= self.method_tables
[mclass
]
656 var attrs
= self.attr_tables
[mclass
]
659 v
.add_decl
("/* runtime class {c_name} */")
660 var idnum
= classids
.length
661 var idname
= "ID_" + c_name
662 self.classids
[mtype
] = idname
663 #self.header.add_decl("#define {idname} {idnum} /* {c_name} */")
665 self.header
.add_decl
("struct class_{c_name} \{")
666 self.header
.add_decl
("int box_kind;")
667 self.header
.add_decl
("nitmethod_t vft[{vft.length}];")
668 self.header
.add_decl
("\};")
671 self.header
.add_decl
("extern const struct class_{c_name} class_{c_name};")
672 v
.add_decl
("const struct class_{c_name} class_{c_name} = \{")
673 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
675 for i
in [0 .. vft
.length
[ do
676 var mpropdef
= vft
[i
]
677 if mpropdef
== null then
678 v
.add_decl
("NULL, /* empty */")
680 if true or mpropdef
.mclassdef
.bound_mtype
.ctype
!= "val*" then
681 v
.add_decl
("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
683 v
.add_decl
("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
690 if mtype
.ctype
!= "val*" then
691 #Build instance struct
692 self.header
.add_decl
("struct instance_{c_name} \{")
693 self.header
.add_decl
("const struct type *type;")
694 self.header
.add_decl
("const struct class *class;")
695 self.header
.add_decl
("{mtype.ctype} value;")
696 self.header
.add_decl
("\};")
698 if not self.runtime_type_analysis
.live_types
.has
(mtype
) then return
700 self.header
.add_decl
("val* BOX_{c_name}({mtype.ctype});")
701 v
.add_decl
("/* allocate {mtype} */")
702 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
703 v
.add
("struct instance_{c_name}*res = GC_MALLOC(sizeof(struct instance_{c_name}));")
704 v
.add
("res->type = (struct type*) &type_{c_name};")
705 v
.add
("res->class = (struct class*) &class_{c_name};")
706 v
.add
("res->value = value;")
707 v
.add
("return (val*)res;")
712 var is_native_array
= mclass
.name
== "NativeArray"
715 if is_native_array
then
716 sig
= "int length, struct type* type"
718 sig
= "struct type* type"
721 #Build instance struct
722 #extern const struct instance_array__NativeArray instance_array__NativeArray;
723 self.header
.add_decl
("struct instance_{c_name} \{")
724 self.header
.add_decl
("const struct type *type;")
725 self.header
.add_decl
("const struct class *class;")
726 self.header
.add_decl
("nitattribute_t attrs[{attrs.length}];")
727 if is_native_array
then
728 # NativeArrays are just a instance header followed by an array of values
729 self.header
.add_decl
("val* values[0];")
731 self.header
.add_decl
("\};")
734 self.header
.add_decl
("{mtype.ctype} NEW_{c_name}({sig});")
735 v
.add_decl
("/* allocate {mtype} */")
736 v
.add_decl
("{mtype.ctype} NEW_{c_name}({sig}) \{")
737 var res
= v
.new_named_var
(mtype
, "self")
739 if is_native_array
then
740 var mtype_elt
= mtype
.arguments
.first
741 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
743 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
745 v
.add
("{res}->type = type;")
746 if v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then
747 v
.add
("if(type == NULL) \{")
748 v
.add_abort
("type null")
750 v
.add
("if(type->unanchored_table == NULL) \{")
751 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", type->name);")
752 v
.add_abort
("type dead")
755 v
.add
("{res}->class = (struct class*) &class_{c_name};")
757 self.generate_init_attr
(v
, res
, mtype
)
758 v
.add
("return {res};")
761 generate_check_init_instance
(mtype
)
764 redef fun generate_check_init_instance
(mtype
)
766 if self.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
768 var v
= self.new_visitor
769 var c_name
= mtype
.mclass
.c_name
770 var res
= new RuntimeVariable("self", mtype
, mtype
)
771 self.header
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype});")
772 v
.add_decl
("/* allocate {mtype} */")
773 v
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype} {res}) \{")
774 self.generate_check_attr
(v
, res
, mtype
)
778 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
782 redef fun display_stats
785 if self.modelbuilder
.toolcontext
.opt_typing_table_metrics
.value
then
792 print
"# size of tables"
793 print
"\trs size\trs hole\tst size\tst hole"
798 var rtables
= unanchored_types_tables
799 if rtables
!= null then
800 for unanch
, table
in rtables
do
801 rt_table
+= table
.length
802 for e
in table
do if e
== null then rt_holes
+= 1
806 var ttables
= type_tables
807 if ttables
!= null then
808 for t
, table
in ttables
do
809 st_table
+= table
.length
810 for e
in table
do if e
== null then st_holes
+= 1
813 print
"\t{rt_table}\t{rt_holes}\t{st_table}\t{st_holes}"
817 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
818 class SeparateCompilerVisitor
819 super AbstractCompilerVisitor
821 redef type COMPILER: SeparateCompiler
823 redef fun adapt_signature
(m
, args
)
825 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
826 var recv
= args
.first
827 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
828 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
830 for i
in [0..msignature
.arity
[ do
831 var t
= msignature
.mparameters
[i
].mtype
832 if i
== msignature
.vararg_rank
then
835 args
[i
+1] = self.autobox
(args
[i
+1], t
)
839 redef fun autobox
(value
, mtype
)
841 if value
.mtype
== mtype
then
843 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
845 else if value
.mtype
.ctype
== "val*" then
846 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
847 else if mtype
.ctype
== "val*" then
848 var valtype
= value
.mtype
.as(MClassType)
849 var res
= self.new_var
(mtype
)
850 if not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
851 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
852 self.add
("printf(\"Dead code executed
!\\n\
"); exit(1);")
855 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
858 # Bad things will appen!
859 var res
= self.new_var
(mtype
)
860 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
861 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); exit(1);")
866 # Return a C expression returning the runtime type structure of the value
867 # The point of the method is to works also with primitives types.
868 fun type_info
(value
: RuntimeVariable): String
870 if value
.mtype
.ctype
== "val*" then
871 return "{value}->type"
873 return "(&type_{value.mtype.c_name})"
877 redef fun send
(mmethod
, arguments
)
879 if arguments
.first
.mcasttype
.ctype
!= "val*" then
880 return self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
883 var res
: nullable RuntimeVariable
884 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
885 var ret
= msignature
.return_mtype
886 if mmethod
.is_new
then
887 ret
= arguments
.first
.mtype
888 res
= self.new_var
(ret
)
889 else if ret
== null then
892 res
= self.new_var
(ret
)
898 var recv
= arguments
.first
901 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
902 for i
in [0..msignature
.arity
[ do
903 var a
= arguments
[i
+1]
904 var t
= msignature
.mparameters
[i
].mtype
905 if i
== msignature
.vararg_rank
then
906 t
= arguments
[i
+1].mcasttype
908 s
.append
(", {t.ctype}")
909 a
= self.autobox
(a
, t
)
913 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
914 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
916 self.add
("if ({recv} == NULL) \{")
917 if mmethod
.name
== "==" then
919 var arg
= arguments
[1]
920 if arg
.mcasttype
isa MNullableType then
921 self.add
("{res} = ({arg} == NULL);")
922 else if arg
.mcasttype
isa MNullType then
923 self.add
("{res} = 1; /* is null */")
925 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
927 else if mmethod
.name
== "!=" then
929 var arg
= arguments
[1]
930 if arg
.mcasttype
isa MNullableType then
931 self.add
("{res} = ({arg} != NULL);")
932 else if arg
.mcasttype
isa MNullType then
933 self.add
("{res} = 0; /* is null */")
935 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
938 self.add_abort
("Reciever is null")
940 self.add
("\} else \{")
942 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
944 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
945 var arg
= arguments
[1]
946 if arg
.mcasttype
isa MNullType then
947 if mmethod
.name
== "==" then
948 self.add
("{res} = 0; /* arg is null but recv is not */")
950 self.add
("{res} = 1; /* arg is null and recv is not */")
960 if ret
== null then r
= "void" else r
= ret
.ctype
961 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{mmethod.const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
964 self.add
("{res} = {call};")
976 redef fun call
(mmethoddef
, recvtype
, arguments
)
978 var res
: nullable RuntimeVariable
979 var ret
= mmethoddef
.msignature
.return_mtype
980 if mmethoddef
.mproperty
.is_new
then
981 ret
= arguments
.first
.mtype
982 res
= self.new_var
(ret
)
983 else if ret
== null then
986 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
987 res
= self.new_var
(ret
)
990 if self.compiler
.modelbuilder
.mpropdef2npropdef
.has_key
(mmethoddef
) and
991 self.compiler
.modelbuilder
.mpropdef2npropdef
[mmethoddef
] isa AInternMethPropdef and
992 not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
then
993 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
994 frame
.returnlabel
= self.get_name
("RET_LABEL")
995 frame
.returnvar
= res
996 var old_frame
= self.frame
998 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) */")
999 mmethoddef
.compile_inside_to_c
(self, arguments
)
1000 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
1002 self.frame
= old_frame
1007 self.adapt_signature
(mmethoddef
, arguments
)
1010 self.add
("{mmethoddef.c_name}({arguments.join(", ")});")
1013 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1019 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1021 # A vararg must be stored into an new array
1022 # The trick is that the dymaic type of the array may depends on the receiver
1023 # of the method (ie recv) if the static type is unresolved
1024 # This is more complex than usual because the unanchored type must not be resolved
1025 # with the current receiver (ie self).
1026 # Therefore to isolate the resolution from self, a local Frame is created.
1027 # One can see this implementation as an inlined method of the receiver whose only
1028 # job is to allocate the array
1029 var old_frame
= self.frame
1030 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1032 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1033 var res
= self.array_instance
(varargs
, elttype
)
1034 self.frame
= old_frame
1038 redef fun isset_attribute
(a
, recv
)
1040 self.check_recv_notnull
(recv
)
1041 var res
= self.new_var
(bool_type
)
1043 # What is the declared type of the attribute?
1044 var mtype
= a
.intro
.static_mtype
.as(not null)
1045 var intromclassdef
= a
.intro
.mclassdef
1046 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1048 if mtype
isa MNullableType then
1049 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1053 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1054 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1057 if mtype
.ctype
== "val*" then
1058 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1060 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1066 redef fun read_attribute
(a
, recv
)
1068 self.check_recv_notnull
(recv
)
1070 # What is the declared type of the attribute?
1071 var ret
= a
.intro
.static_mtype
.as(not null)
1072 var intromclassdef
= a
.intro
.mclassdef
1073 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
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 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1121 var attr
= "{recv}->attrs[{a.const_color}]"
1122 if mtype
.ctype
!= "val*" then
1123 assert mtype
isa MClassType
1124 # The attribute is primitive, thus we store it in a box
1125 # The trick is to create the box the first time then resuse the box
1126 self.add
("if ({attr} != NULL) \{")
1127 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1128 self.add
("\} else \{")
1129 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1130 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1133 # The attribute is not primitive, thus store it direclty
1134 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1137 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1141 # Build livetype structure retrieving
1142 # ENSURE: mtype.need_anchor
1143 fun retrieve_anchored_livetype
(mtype
: MGenericType, buffer
: Buffer) do
1144 assert mtype
.need_anchor
1146 var compiler
= self.compiler
1147 for ft
in mtype
.arguments
do
1151 if ntype
isa MNullableType then
1155 var recv
= self.frame
.arguments
.first
1156 var recv_type_info
= self.type_info
(recv
)
1157 if ntype
isa MParameterType then
1158 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1159 buffer
.append
("[{recv_type_info}->fts_table->types[HASH({recv_type_info}->fts_table->mask, {ntype.const_color})]->livecolor]")
1161 buffer
.append
("[{recv_type_info}->fts_table->types[{ntype.const_color}]->livecolor]")
1163 else if ntype
isa MVirtualType then
1164 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1165 buffer
.append
("[{recv_type_info}->vts_table->types[HASH({recv_type_info}->vts_table->mask, {ntype.mproperty.const_color})]->livecolor]")
1167 buffer
.append
("[{recv_type_info}->vts_table->types[{ntype.mproperty.const_color}]->livecolor]")
1169 else if ntype
isa MGenericType and ntype
.need_anchor
then
1170 var bbuff
= new Buffer
1171 retrieve_anchored_livetype
(ntype
, bbuff
)
1172 buffer
.append
("[livetypes_{ntype.mclass.c_name}{bbuff.to_s}->livecolor]")
1173 else if ntype
isa MClassType then
1174 compiler
.undead_types
.add
(ft
)
1175 buffer
.append
("[type_{ft.c_name}.livecolor]")
1177 self.add
("printf(\"NOT YET IMPLEMENTED: init_instance
(%s
, {mtype}).\\n\
", \"{ft}\
"); exit(1);")
1182 redef fun init_instance
(mtype
)
1184 var compiler
= self.compiler
1185 if mtype
isa MGenericType and mtype
.need_anchor
then
1186 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1187 var recv
= self.frame
.arguments
.first
1188 var recv_type_info
= self.type_info
(recv
)
1189 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1190 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
)
1192 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->unanchored_table->types[{mtype.const_color}])", mtype
)
1195 compiler
.undead_types
.add
(mtype
)
1196 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) &type_{mtype.c_name})", mtype
)
1199 redef fun check_init_instance
(value
, mtype
)
1201 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
1202 self.add
("CHECK_NEW_{mtype.mclass.c_name}({value});")
1205 redef fun type_test
(value
, mtype
, tag
)
1207 self.add
("/* {value.inspect} isa {mtype} */")
1208 var compiler
= self.compiler
1210 var recv
= self.frame
.arguments
.first
1211 var recv_type_info
= self.type_info
(recv
)
1213 var res
= self.new_var
(bool_type
)
1215 var cltype
= self.get_name
("cltype")
1216 self.add_decl
("int {cltype};")
1217 var idtype
= self.get_name
("idtype")
1218 self.add_decl
("int {idtype};")
1220 var maybe_null
= self.maybe_null
(value
)
1221 var accept_null
= "0"
1223 if ntype
isa MNullableType then
1228 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1229 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1230 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1231 self.compiler
.count_type_test_skipped
[tag
] += 1
1232 self.add
("count_type_test_skipped_{tag}++;")
1237 if ntype
.need_anchor
then
1238 var type_struct
= self.get_name
("type_struct")
1239 self.add_decl
("struct type* {type_struct};")
1241 # Either with unanchored_table with a direct resolution
1242 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, ntype
)
1243 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1244 self.add
("{type_struct} = {recv_type_info}->unanchored_table->types[HASH({recv_type_info}->unanchored_table->mask, {ntype.const_color})];")
1246 self.add
("{type_struct} = {recv_type_info}->unanchored_table->types[{ntype.const_color}];")
1248 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1249 self.compiler
.count_type_test_unresolved
[tag
] += 1
1250 self.add
("count_type_test_unresolved_{tag}++;")
1252 self.add
("{cltype} = {type_struct}->color;")
1253 self.add
("{idtype} = {type_struct}->id;")
1254 if maybe_null
and accept_null
== "0" then
1255 var is_nullable
= self.get_name
("is_nullable")
1256 self.add_decl
("short int {is_nullable};")
1257 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1258 accept_null
= is_nullable
.to_s
1260 else if ntype
isa MClassType then
1261 compiler
.undead_types
.add
(mtype
)
1262 self.add
("{cltype} = type_{mtype.c_name}.color;")
1263 self.add
("{idtype} = type_{mtype.c_name}.id;")
1264 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1265 self.compiler
.count_type_test_resolved
[tag
] += 1
1266 self.add
("count_type_test_resolved_{tag}++;")
1269 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); exit(1);")
1272 # check color is in table
1274 self.add
("if({value} == NULL) \{")
1275 self.add
("{res} = {accept_null};")
1276 self.add
("\} else \{")
1278 var value_type_info
= self.type_info
(value
)
1279 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1280 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1282 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1283 self.add
("{res} = 0;")
1284 self.add
("\} else \{")
1285 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1294 redef fun is_same_type_test
(value1
, value2
)
1296 var res
= self.new_var
(bool_type
)
1297 # Swap values to be symetric
1298 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1303 if value1
.mtype
.ctype
!= "val*" then
1304 if value2
.mtype
== value1
.mtype
then
1305 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1306 else if value2
.mtype
.ctype
!= "val*" then
1307 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1309 var mtype1
= value1
.mtype
.as(MClassType)
1310 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name}); /* is_same_type_test */")
1313 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1318 redef fun class_name_string
(value
)
1320 var res
= self.get_name
("var_class_name")
1321 self.add_decl
("const char* {res};")
1322 if value
.mtype
.ctype
== "val*" then
1323 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1325 self.add
"{res} = type_{value.mtype.c_name}.name;"
1330 redef fun equal_test
(value1
, value2
)
1332 var res
= self.new_var
(bool_type
)
1333 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1338 if value1
.mtype
.ctype
!= "val*" then
1339 if value2
.mtype
== value1
.mtype
then
1340 self.add
("{res} = {value1} == {value2};")
1341 else if value2
.mtype
.ctype
!= "val*" then
1342 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1344 var mtype1
= value1
.mtype
.as(MClassType)
1345 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name});")
1346 self.add
("if ({res}) \{")
1347 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1352 var maybe_null
= true
1353 var test
= new Array[String]
1354 var t1
= value1
.mcasttype
1355 if t1
isa MNullableType then
1356 test
.add
("{value1} != NULL")
1361 var t2
= value2
.mcasttype
1362 if t2
isa MNullableType then
1363 test
.add
("{value2} != NULL")
1369 var incompatible
= false
1371 if t1
.ctype
!= "val*" then
1374 # No need to compare class
1375 else if t2
.ctype
!= "val*" then
1377 else if can_be_primitive
(value2
) then
1378 test
.add
("{value1}->class == {value2}->class")
1382 else if t2
.ctype
!= "val*" then
1384 if can_be_primitive
(value1
) then
1385 test
.add
("{value1}->class == {value2}->class")
1393 if incompatible
then
1395 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1398 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1402 if primitive
!= null then
1403 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1404 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1405 test
.add
("{value1}->class == {value2}->class")
1406 var s
= new Array[String]
1407 for t
, v
in self.compiler
.box_kinds
do
1408 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1410 test
.add
("({s.join(" || ")})")
1412 self.add
("{res} = {value1} == {value2};")
1415 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1419 fun can_be_primitive
(value
: RuntimeVariable): Bool
1421 var t
= value
.mcasttype
1422 if t
isa MNullableType then t
= t
.mtype
1423 if not t
isa MClassType then return false
1424 var k
= t
.mclass
.kind
1425 return k
== interface_kind
or t
.ctype
!= "val*"
1428 fun maybe_null
(value
: RuntimeVariable): Bool
1430 var t
= value
.mcasttype
1431 return t
isa MNullableType or t
isa MNullType
1434 redef fun array_instance
(array
, elttype
)
1436 var nclass
= self.get_class
("NativeArray")
1437 var arrayclass
= self.get_class
("Array")
1438 var arraytype
= arrayclass
.get_mtype
([elttype
])
1439 var res
= self.init_instance
(arraytype
)
1440 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1441 var length
= self.int_instance
(array
.length
)
1442 var nat
= native_array_instance
(elttype
, length
)
1443 for i
in [0..array
.length
[ do
1444 var r
= self.autobox
(array
[i
], self.object_type
)
1445 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1447 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1448 self.check_init_instance
(res
, arraytype
)
1453 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1455 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1456 assert mtype
isa MGenericType
1457 var compiler
= self.compiler
1458 if mtype
.need_anchor
then
1459 link_unanchored_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1460 var recv
= self.frame
.arguments
.first
1461 var recv_type_info
= self.type_info
(recv
)
1462 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1463 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
)
1465 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->unanchored_table->types[{mtype.const_color}])", mtype
)
1468 compiler
.undead_types
.add
(mtype
)
1469 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) &type_{mtype.c_name})", mtype
)
1472 redef fun native_array_def
(pname
, ret_type
, arguments
)
1474 var elttype
= arguments
.first
.mtype
1475 var nclass
= self.get_class
("NativeArray")
1476 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1477 if pname
== "[]" then
1478 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1480 else if pname
== "[]=" then
1481 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1483 else if pname
== "copy_to" then
1484 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1485 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1490 redef fun calloc_array
(ret_type
, arguments
)
1492 var mclass
= self.get_class
("ArrayCapable")
1493 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1494 var res
= self.native_array_instance
(ft
, arguments
[1])
1498 fun link_unanchored_type
(mclassdef
: MClassDef, mtype
: MType) do
1499 assert mtype
.need_anchor
1500 var compiler
= self.compiler
1501 if not compiler
.live_unanchored_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1502 compiler
.live_unanchored_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1504 compiler
.live_unanchored_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1508 # The C function associated to a methoddef separately compiled
1509 class SeparateRuntimeFunction
1510 super AbstractRuntimeFunction
1512 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1514 redef fun to_s
do return self.mmethoddef
.to_s
1516 redef fun compile_to_c
(compiler
)
1518 var mmethoddef
= self.mmethoddef
1520 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1521 var v
= compiler
.new_visitor
1522 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1523 var arguments
= new Array[RuntimeVariable]
1524 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1527 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1529 var sig
= new Buffer
1530 var comment
= new Buffer
1531 var ret
= msignature
.return_mtype
1533 sig
.append
("{ret.ctype} ")
1534 else if mmethoddef
.mproperty
.is_new
then
1536 sig
.append
("{ret.ctype} ")
1540 sig
.append
(self.c_name
)
1541 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1542 comment
.append
("(self: {selfvar}")
1543 arguments
.add
(selfvar
)
1544 for i
in [0..msignature
.arity
[ do
1545 var mtype
= msignature
.mparameters
[i
].mtype
1546 if i
== msignature
.vararg_rank
then
1547 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1549 comment
.append
(", {mtype}")
1550 sig
.append
(", {mtype.ctype} p{i}")
1551 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1552 arguments
.add
(argvar
)
1557 comment
.append
(": {ret}")
1559 compiler
.header
.add_decl
("{sig};")
1561 v
.add_decl
("/* method {self} for {comment} */")
1562 v
.add_decl
("{sig} \{")
1564 frame
.returnvar
= v
.new_var
(ret
)
1566 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1568 if recv
!= arguments
.first
.mtype
then
1569 #print "{self} {recv} {arguments.first}"
1571 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1573 v
.add
("{frame.returnlabel.as(not null)}:;")
1575 v
.add
("return {frame.returnvar.as(not null)};")
1581 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1582 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1583 class VirtualRuntimeFunction
1584 super AbstractRuntimeFunction
1586 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1588 redef fun to_s
do return self.mmethoddef
.to_s
1590 redef fun compile_to_c
(compiler
)
1592 var mmethoddef
= self.mmethoddef
1594 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1595 var v
= compiler
.new_visitor
1596 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1597 var arguments
= new Array[RuntimeVariable]
1598 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1601 var sig
= new Buffer
1602 var comment
= new Buffer
1604 # Because the function is virtual, the signature must match the one of the original class
1605 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1606 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1607 var ret
= msignature
.return_mtype
1609 sig
.append
("{ret.ctype} ")
1610 else if mmethoddef
.mproperty
.is_new
then
1612 sig
.append
("{ret.ctype} ")
1616 sig
.append
(self.c_name
)
1617 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1618 comment
.append
("(self: {selfvar}")
1619 arguments
.add
(selfvar
)
1620 for i
in [0..msignature
.arity
[ do
1621 var mtype
= msignature
.mparameters
[i
].mtype
1622 if i
== msignature
.vararg_rank
then
1623 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1625 comment
.append
(", {mtype}")
1626 sig
.append
(", {mtype.ctype} p{i}")
1627 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1628 arguments
.add
(argvar
)
1633 comment
.append
(": {ret}")
1635 compiler
.header
.add_decl
("{sig};")
1637 v
.add_decl
("/* method {self} for {comment} */")
1638 v
.add_decl
("{sig} \{")
1640 frame
.returnvar
= v
.new_var
(ret
)
1642 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1644 if recv
!= arguments
.first
.mtype
then
1645 #print "{self} {recv} {arguments.first}"
1647 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1649 v
.add
("{frame.returnlabel.as(not null)}:;")
1651 v
.add
("return {frame.returnvar.as(not null)};")
1657 redef fun call
(v
, arguments
) do abort
1661 fun const_color
: String do return "COLOR_{c_name}"
1664 redef class MProperty
1665 fun const_color
: String do return "COLOR_{c_name}"