1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 # Separate compilation of a Nit program
16 module separate_compiler
18 import abstract_compiler
19 import layout_builders
20 import rapid_type_analysis
22 # Add separate compiler specific options
23 redef class ToolContext
25 var opt_separate
: OptionBool = new OptionBool("Use separate compilation", "--separate")
27 var opt_no_inline_intern
: OptionBool = new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
28 # --no-union-attribute
29 var opt_no_union_attribute
: OptionBool = new OptionBool("Put primitive attibutes in a box instead of an union", "--no-union-attribute")
30 # --no-shortcut-equate
31 var opt_no_shortcut_equate
: OptionBool = new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
32 # --inline-coloring-numbers
33 var opt_inline_coloring_numbers
: OptionBool = new OptionBool("Inline colors and ids", "--inline-coloring-numbers")
34 # --use-naive-coloring
35 var opt_bm_typing
: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
36 # --use-mod-perfect-hashing
37 var opt_phmod_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
38 # --use-and-perfect-hashing
39 var opt_phand_typing
: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
41 var opt_tables_metrics
: OptionBool = new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
46 self.option_context
.add_option
(self.opt_separate
)
47 self.option_context
.add_option
(self.opt_no_inline_intern
)
48 self.option_context
.add_option
(self.opt_no_union_attribute
)
49 self.option_context
.add_option
(self.opt_no_shortcut_equate
)
50 self.option_context
.add_option
(self.opt_inline_coloring_numbers
)
51 self.option_context
.add_option
(self.opt_bm_typing
)
52 self.option_context
.add_option
(self.opt_phmod_typing
)
53 self.option_context
.add_option
(self.opt_phand_typing
)
54 self.option_context
.add_option
(self.opt_tables_metrics
)
58 redef class ModelBuilder
59 fun run_separate_compiler
(mainmodule
: MModule, runtime_type_analysis
: RapidTypeAnalysis)
62 self.toolcontext
.info
("*** COMPILING TO C ***", 1)
64 var compiler
= new SeparateCompiler(mainmodule
, self, runtime_type_analysis
)
65 compiler
.compile_header
67 # compile class structures
68 for m
in mainmodule
.in_importation
.greaters
do
69 for mclass
in m
.intro_mclasses
do
70 compiler
.compile_class_to_c
(mclass
)
74 # The main function of the C
76 compiler
.compile_main_function
79 for m
in mainmodule
.in_importation
.greaters
do
81 compiler
.compile_module_to_c
(m
)
84 # compile live & cast type structures
86 var mtypes
= compiler
.do_type_coloring
88 compiler
.compile_type_to_c
(t
)
91 compiler
.display_stats
93 write_and_make
(compiler
)
97 # Singleton that store the knowledge about the separate compilation process
98 class SeparateCompiler
99 super AbstractCompiler
101 # The result of the RTA (used to know live types and methods)
102 var runtime_type_analysis
: RapidTypeAnalysis
104 private var undead_types
: Set[MType] = new HashSet[MType]
105 private var partial_types
: Set[MType] = new HashSet[MType]
106 private var live_unresolved_types
: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
108 private var type_layout
: nullable Layout[MType]
109 private var resolution_layout
: nullable Layout[MType]
110 protected var method_layout
: nullable PropertyLayout[MMethod]
111 protected var attr_layout
: nullable PropertyLayout[MAttribute]
113 init(mainmodule
: MModule, mmbuilder
: ModelBuilder, runtime_type_analysis
: RapidTypeAnalysis) do
114 super(mainmodule
, mmbuilder
)
115 self.header
= new_visitor
116 self.runtime_type_analysis
= runtime_type_analysis
117 self.do_property_coloring
118 self.compile_box_kinds
121 redef fun compile_header_structs
do
122 self.header
.add_decl
("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
123 self.compile_header_attribute_structs
124 self.header
.add_decl
("struct class \{ int box_kind; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
126 # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
127 self.header
.add_decl
("struct type \{ int id; const char *name; int color; short int is_nullable; struct types *resolution_table; int table_size; int type_table[1]; \}; /* general C type representing a Nit type. */")
129 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
or modelbuilder
.toolcontext
.opt_phand_typing
.value
then
130 self.header
.add_decl
("struct types \{ int mask; struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
132 self.header
.add_decl
("struct types \{ struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
135 if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
136 self.header
.add_decl
("#define HASH(mask, id) ((mask)%(id))")
137 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
138 self.header
.add_decl
("#define HASH(mask, id) ((mask)&(id))")
141 self.header
.add_decl
("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
144 fun compile_header_attribute_structs
146 if modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
147 self.header
.add_decl
("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
149 self.header
.add_decl
("typedef union \{")
150 self.header
.add_decl
("void* val;")
151 for c
, v
in self.box_kinds
do
152 var t
= c
.mclass_type
153 self.header
.add_decl
("{t.ctype} {t.ctypename};")
155 self.header
.add_decl
("\} nitattribute_t; /* general C type representing a Nit attribute. */")
159 fun compile_box_kinds
161 # Collect all bas box class
162 # FIXME: this is not completely fine with a separate compilation scheme
163 for classname
in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
164 var classes
= self.mainmodule
.model
.get_mclasses_by_name
(classname
)
165 if classes
== null then continue
166 assert classes
.length
== 1 else print classes
.join
(", ")
167 self.box_kinds
[classes
.first
] = self.box_kinds
.length
+ 1
171 var box_kinds
= new HashMap[MClass, Int]
173 fun box_kind_of
(mclass
: MClass): Int
175 if mclass
.mclass_type
.ctype
== "val*" then
177 else if mclass
.kind
== extern_kind
then
178 return self.box_kinds
[self.mainmodule
.get_primitive_class
("Pointer")]
180 return self.box_kinds
[mclass
]
185 fun compile_color_consts
(colors
: Map[Object, Int]) do
186 for m
, c
in colors
do
187 if color_consts_done
.has
(m
) then continue
188 if m
isa MProperty then
189 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
190 self.header
.add_decl
("#define {m.const_color} {c}")
192 self.header
.add_decl
("extern const int {m.const_color};")
193 self.header
.add
("const int {m.const_color} = {c};")
195 else if m
isa MType then
196 if modelbuilder
.toolcontext
.opt_inline_coloring_numbers
.value
then
197 self.header
.add_decl
("#define {m.const_color} {c}")
199 self.header
.add_decl
("extern const int {m.const_color};")
200 self.header
.add
("const int {m.const_color} = {c};")
203 color_consts_done
.add
(m
)
207 private var color_consts_done
= new HashSet[Object]
209 # colorize classe properties
210 fun do_property_coloring
do
211 var mclasses
= new HashSet[MClass].from
(modelbuilder
.model
.mclasses
)
214 var method_coloring
= new CLPropertyLayoutBuilder[MMethod](new MMethodColorer(mainmodule
))
215 var method_layout
= method_coloring
.build_layout
(mclasses
)
216 self.method_tables
= build_method_tables
(mclasses
, method_layout
)
217 self.compile_color_consts
(method_layout
.pos
)
218 self.method_layout
= method_layout
220 # attributes coloration
221 var attribute_coloring
= new CLPropertyLayoutBuilder[MAttribute](new MAttributeColorer(mainmodule
))
222 var attr_layout
= attribute_coloring
.build_layout
(mclasses
)
223 self.attr_tables
= build_attr_tables
(mclasses
, attr_layout
)
224 self.compile_color_consts
(attr_layout
.pos
)
225 self.attr_layout
= attr_layout
228 fun build_method_tables
(mclasses
: Set[MClass], layout
: PropertyLayout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
229 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
230 for mclass
in mclasses
do
231 var table
= new Array[nullable MPropDef]
232 # first, fill table from parents by reverse linearization order
233 var parents
= self.mainmodule
.super_mclasses
(mclass
)
234 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
236 for mproperty
in self.mainmodule
.properties
(parent
) do
237 if not mproperty
isa MMethod then continue
238 var color
= layout
.pos
[mproperty
]
239 if table
.length
<= color
then
240 for i
in [table
.length
.. color
[ do
244 for mpropdef
in mproperty
.mpropdefs
do
245 if mpropdef
.mclassdef
.mclass
== parent
then
246 table
[color
] = mpropdef
252 # then override with local properties
253 for mproperty
in self.mainmodule
.properties
(mclass
) do
254 if not mproperty
isa MMethod then continue
255 var color
= layout
.pos
[mproperty
]
256 if table
.length
<= color
then
257 for i
in [table
.length
.. color
[ do
261 for mpropdef
in mproperty
.mpropdefs
do
262 if mpropdef
.mclassdef
.mclass
== mclass
then
263 table
[color
] = mpropdef
267 tables
[mclass
] = table
272 fun build_attr_tables
(mclasses
: Set[MClass], layout
: PropertyLayout[MProperty]): Map[MClass, Array[nullable MPropDef]] do
273 var tables
= new HashMap[MClass, Array[nullable MPropDef]]
274 for mclass
in mclasses
do
275 var table
= new Array[nullable MPropDef]
276 # first, fill table from parents by reverse linearization order
277 var parents
= self.mainmodule
.super_mclasses
(mclass
)
278 var lin
= self.mainmodule
.reverse_linearize_mclasses
(parents
)
280 for mproperty
in self.mainmodule
.properties
(parent
) do
281 if not mproperty
isa MAttribute then continue
282 var color
= layout
.pos
[mproperty
]
283 if table
.length
<= color
then
284 for i
in [table
.length
.. color
[ do
288 for mpropdef
in mproperty
.mpropdefs
do
289 if mpropdef
.mclassdef
.mclass
== parent
then
290 table
[color
] = mpropdef
296 # then override with local properties
297 for mproperty
in self.mainmodule
.properties
(mclass
) do
298 if not mproperty
isa MAttribute then continue
299 var color
= layout
.pos
[mproperty
]
300 if table
.length
<= color
then
301 for i
in [table
.length
.. color
[ do
305 for mpropdef
in mproperty
.mpropdefs
do
306 if mpropdef
.mclassdef
.mclass
== mclass
then
307 table
[color
] = mpropdef
311 tables
[mclass
] = table
316 # colorize live types of the program
317 private fun do_type_coloring
: Set[MType] do
318 var mtypes
= new HashSet[MType]
319 mtypes
.add_all
(self.runtime_type_analysis
.live_types
)
320 mtypes
.add_all
(self.runtime_type_analysis
.live_cast_types
)
321 mtypes
.add_all
(self.undead_types
)
322 for c
in self.box_kinds
.keys
do
323 mtypes
.add
(c
.mclass_type
)
326 for mtype
in mtypes
do
327 retieve_live_partial_types
(mtype
)
329 mtypes
.add_all
(self.partial_types
)
332 var layout_builder
: TypingLayoutBuilder[MType]
333 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
334 layout_builder
= new BMTypeLayoutBuilder(self.mainmodule
)
335 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
336 layout_builder
= new PHTypeLayoutBuilder(self.mainmodule
, new PHModOperator)
337 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
338 layout_builder
= new PHTypeLayoutBuilder(self.mainmodule
, new PHAndOperator)
340 layout_builder
= new CLTypingLayoutBuilder[MType](new MTypeColorer(self.mainmodule
))
344 self.type_layout
= layout_builder
.build_layout
(mtypes
)
345 self.type_tables
= self.build_type_tables
(mtypes
)
347 # VT and FT are stored with other unresolved types in the big resolution_tables
348 self.compile_resolution_tables
(mtypes
)
354 fun build_type_tables
(mtypes
: Set[MType]): Map[MType, Array[nullable MType]] do
355 var tables
= new HashMap[MType, Array[nullable MType]]
356 var layout
= self.type_layout
357 for mtype
in mtypes
do
358 var table
= new Array[nullable MType]
359 var supers
= new HashSet[MType]
360 supers
.add_all
(self.mainmodule
.super_mtypes
(mtype
, mtypes
))
364 if layout
isa PHLayout[MType, MType] then
365 color
= layout
.hashes
[mtype
][sup
]
367 color
= layout
.pos
[sup
]
369 if table
.length
<= color
then
370 for i
in [table
.length
.. color
[ do
376 tables
[mtype
] = table
381 protected fun compile_resolution_tables
(mtypes
: Set[MType]) do
382 # resolution_tables is used to perform a type resolution at runtime in O(1)
384 # During the visit of the body of classes, live_unresolved_types are collected
386 # Collect all live_unresolved_types (visited in the body of classes)
388 # Determinate fo each livetype what are its possible requested anchored types
389 var mtype2unresolved
= new HashMap[MClassType, Set[MType]]
390 for mtype
in self.runtime_type_analysis
.live_types
do
391 var set
= new HashSet[MType]
392 for cd
in mtype
.collect_mclassdefs
(self.mainmodule
) do
393 if self.live_unresolved_types
.has_key
(cd
) then
394 set
.add_all
(self.live_unresolved_types
[cd
])
397 mtype2unresolved
[mtype
] = set
400 # Compute the table layout with the prefered method
401 var resolution_builder
: ResolutionLayoutBuilder
402 if modelbuilder
.toolcontext
.opt_bm_typing
.value
then
403 resolution_builder
= new BMResolutionLayoutBuilder
404 else if modelbuilder
.toolcontext
.opt_phmod_typing
.value
then
405 resolution_builder
= new PHResolutionLayoutBuilder(new PHModOperator)
406 else if modelbuilder
.toolcontext
.opt_phand_typing
.value
then
407 resolution_builder
= new PHResolutionLayoutBuilder(new PHAndOperator)
409 resolution_builder
= new CLResolutionLayoutBuilder
411 self.resolution_layout
= resolution_builder
.build_layout
(mtype2unresolved
)
412 self.resolution_tables
= self.build_resolution_tables
(mtype2unresolved
)
414 # Compile a C constant for each collected unresolved type.
415 # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
416 var all_unresolved
= new HashSet[MType]
417 for t
in self.live_unresolved_types
.values
do
418 all_unresolved
.add_all
(t
)
420 var all_unresolved_types_colors
= new HashMap[MType, Int]
421 for t
in all_unresolved
do
422 if self.resolution_layout
.pos
.has_key
(t
) then
423 all_unresolved_types_colors
[t
] = self.resolution_layout
.pos
[t
]
425 all_unresolved_types_colors
[t
] = -1
428 self.compile_color_consts
(all_unresolved_types_colors
)
431 #for k, v in unresolved_types_tables.as(not null) do
432 # print "{k}: {v.join(", ")}"
437 fun build_resolution_tables
(elements
: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
438 var tables
= new HashMap[MClassType, Array[nullable MType]]
439 var layout
= self.resolution_layout
440 for mclasstype
, mtypes
in elements
do
441 var table
= new Array[nullable MType]
442 for mtype
in mtypes
do
444 if layout
isa PHLayout[MClassType, MType] then
445 color
= layout
.hashes
[mclasstype
][mtype
]
447 color
= layout
.pos
[mtype
]
449 if table
.length
<= color
then
450 for i
in [table
.length
.. color
[ do
456 tables
[mclasstype
] = table
461 fun retieve_live_partial_types
(mtype
: MType) do
462 # add formal types arguments to mtypes
463 if mtype
isa MGenericType then
464 for ft
in mtype
.arguments
do
465 if ft
.need_anchor
then
466 print
("Why do we need anchor here ?")
469 self.partial_types
.add
(ft
)
470 retieve_live_partial_types
(ft
)
473 var mclass_type
: MClassType
474 if mtype
isa MNullableType then
475 mclass_type
= mtype
.mtype
.as(MClassType)
477 mclass_type
= mtype
.as(MClassType)
480 # add virtual types to mtypes
481 for vt
in self.mainmodule
.properties
(mclass_type
.mclass
) do
482 if vt
isa MVirtualTypeProp then
483 var anchored
= vt
.mvirtualtype
.lookup_bound
(self.mainmodule
, mclass_type
).anchor_to
(self.mainmodule
, mclass_type
)
484 self.partial_types
.add
(anchored
)
489 # Separately compile all the method definitions of the module
490 fun compile_module_to_c
(mmodule
: MModule)
492 var old_module
= self.mainmodule
493 self.mainmodule
= mmodule
494 for cd
in mmodule
.mclassdefs
do
495 for pd
in cd
.mpropdefs
do
496 if not pd
isa MMethodDef then continue
497 #print "compile {pd} @ {cd} @ {mmodule}"
498 var r
= new SeparateRuntimeFunction(pd
)
500 if true or cd
.bound_mtype
.ctype
!= "val*" then
501 var r2
= new VirtualRuntimeFunction(pd
)
502 r2
.compile_to_c
(self)
506 self.mainmodule
= old_module
509 # Globaly compile the type structure of a live type
510 fun compile_type_to_c
(mtype
: MType)
512 var c_name
= mtype
.c_name
513 var v
= new SeparateCompilerVisitor(self)
514 v
.add_decl
("/* runtime type {mtype} */")
516 # extern const struct type_X
517 self.header
.add_decl
("extern const struct type_{c_name} type_{c_name};")
518 self.header
.add_decl
("struct type_{c_name} \{")
519 self.header
.add_decl
("int id;")
520 self.header
.add_decl
("const char *name;")
521 self.header
.add_decl
("int color;")
522 self.header
.add_decl
("short int is_nullable;")
523 self.header
.add_decl
("const struct types *resolution_table;")
524 self.header
.add_decl
("int table_size;")
525 self.header
.add_decl
("int type_table[{self.type_tables[mtype].length}];")
526 self.header
.add_decl
("\};")
528 # const struct type_X
529 v
.add_decl
("const struct type_{c_name} type_{c_name} = \{")
530 v
.add_decl
("{self.type_layout.ids[mtype]},")
531 v
.add_decl
("\"{mtype}\
", /* class_name_string */")
532 var layout
= self.type_layout
533 if layout
isa PHLayout[MType, MType] then
534 v
.add_decl
("{layout.masks[mtype]},")
536 v
.add_decl
("{layout.pos[mtype]},")
538 if mtype
isa MNullableType then
543 if compile_type_resolution_table
(mtype
) then
544 v
.add_decl
("(struct types*) &resolution_table_{c_name},")
548 v
.add_decl
("{self.type_tables[mtype].length},")
550 for stype
in self.type_tables
[mtype
] do
551 if stype
== null then
552 v
.add_decl
("-1, /* empty */")
554 v
.add_decl
("{self.type_layout.ids[stype]}, /* {stype} */")
561 fun compile_type_resolution_table
(mtype
: MType): Bool do
563 var mclass_type
: MClassType
564 if mtype
isa MNullableType then
565 mclass_type
= mtype
.mtype
.as(MClassType)
567 mclass_type
= mtype
.as(MClassType)
569 if not self.resolution_tables
.has_key
(mclass_type
) then return false
571 var layout
= self.resolution_layout
573 # extern const struct resolution_table_X resolution_table_X
574 self.header
.add_decl
("extern const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name};")
575 self.header
.add_decl
("struct resolution_table_{mtype.c_name} \{")
576 if layout
isa PHLayout[MClassType, MType] then
577 self.header
.add_decl
("int mask;")
579 self.header
.add_decl
("struct type *types[{self.resolution_tables[mclass_type].length}];")
580 self.header
.add_decl
("\};")
582 # const struct fts_table_X fts_table_X
584 v
.add_decl
("const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name} = \{")
585 if layout
isa PHLayout[MClassType, MType] then
586 v
.add_decl
("{layout.masks[mclass_type]},")
589 for t
in self.resolution_tables
[mclass_type
] do
591 v
.add_decl
("NULL, /* empty */")
593 # The table stores the result of the type resolution
594 # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
595 # the value stored is tv.
596 var tv
= t
.resolve_for
(mclass_type
, mclass_type
, self.mainmodule
, true)
597 # FIXME: What typeids means here? How can a tv not be live?
598 if self.type_layout
.ids
.has_key
(tv
) then
599 v
.add_decl
("(struct type*)&type_{tv.c_name}, /* {t}: {tv} */")
601 v
.add_decl
("NULL, /* empty ({t}: {tv} not a live type) */")
610 # Globally compile the table of the class mclass
611 # In a link-time optimisation compiler, tables are globally computed
612 # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
613 fun compile_class_to_c
(mclass
: MClass)
615 var mtype
= mclass
.intro
.bound_mtype
616 var c_name
= mclass
.c_name
618 var vft
= self.method_tables
[mclass
]
619 var attrs
= self.attr_tables
[mclass
]
622 v
.add_decl
("/* runtime class {c_name} */")
624 self.header
.add_decl
("struct class_{c_name} \{")
625 self.header
.add_decl
("int box_kind;")
626 self.header
.add_decl
("nitmethod_t vft[{vft.length}];")
627 self.header
.add_decl
("\};")
630 self.header
.add_decl
("extern const struct class_{c_name} class_{c_name};")
631 v
.add_decl
("const struct class_{c_name} class_{c_name} = \{")
632 v
.add_decl
("{self.box_kind_of(mclass)}, /* box_kind */")
634 for i
in [0 .. vft
.length
[ do
635 var mpropdef
= vft
[i
]
636 if mpropdef
== null then
637 v
.add_decl
("NULL, /* empty */")
639 if true or mpropdef
.mclassdef
.bound_mtype
.ctype
!= "val*" then
640 v
.add_decl
("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
642 v
.add_decl
("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
649 if mtype
.ctype
!= "val*" then
650 #Build instance struct
651 self.header
.add_decl
("struct instance_{c_name} \{")
652 self.header
.add_decl
("const struct type *type;")
653 self.header
.add_decl
("const struct class *class;")
654 self.header
.add_decl
("{mtype.ctype} value;")
655 self.header
.add_decl
("\};")
657 if not self.runtime_type_analysis
.live_types
.has
(mtype
) then return
659 self.header
.add_decl
("val* BOX_{c_name}({mtype.ctype});")
660 v
.add_decl
("/* allocate {mtype} */")
661 v
.add_decl
("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
662 v
.add
("struct instance_{c_name}*res = GC_MALLOC(sizeof(struct instance_{c_name}));")
663 v
.add
("res->type = (struct type*) &type_{c_name};")
664 v
.add
("res->class = (struct class*) &class_{c_name};")
665 v
.add
("res->value = value;")
666 v
.add
("return (val*)res;")
671 var is_native_array
= mclass
.name
== "NativeArray"
674 if is_native_array
then
675 sig
= "int length, struct type* type"
677 sig
= "struct type* type"
680 #Build instance struct
681 #extern const struct instance_array__NativeArray instance_array__NativeArray;
682 self.header
.add_decl
("struct instance_{c_name} \{")
683 self.header
.add_decl
("const struct type *type;")
684 self.header
.add_decl
("const struct class *class;")
685 self.header
.add_decl
("nitattribute_t attrs[{attrs.length}];")
686 if is_native_array
then
687 # NativeArrays are just a instance header followed by an array of values
688 self.header
.add_decl
("val* values[0];")
690 self.header
.add_decl
("\};")
693 self.header
.add_decl
("{mtype.ctype} NEW_{c_name}({sig});")
694 v
.add_decl
("/* allocate {mtype} */")
695 v
.add_decl
("{mtype.ctype} NEW_{c_name}({sig}) \{")
696 var res
= v
.new_named_var
(mtype
, "self")
698 if is_native_array
then
699 var mtype_elt
= mtype
.arguments
.first
700 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
702 v
.add
("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
704 v
.add
("{res}->type = type;")
705 if v
.compiler
.modelbuilder
.toolcontext
.opt_hardening
.value
then
706 v
.add
("if(type == NULL) \{")
707 v
.add_abort
("type null")
709 v
.add
("if(type->resolution_table == NULL) \{")
710 v
.add
("fprintf(stderr, \"Insantiation of a dead
type: %s\\n\
", type->name);")
711 v
.add_abort
("type dead")
714 v
.add
("{res}->class = (struct class*) &class_{c_name};")
716 self.generate_init_attr
(v
, res
, mtype
)
717 v
.add
("return {res};")
720 generate_check_init_instance
(mtype
)
723 redef fun generate_check_init_instance
(mtype
)
725 if self.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
727 var v
= self.new_visitor
728 var c_name
= mtype
.mclass
.c_name
729 var res
= new RuntimeVariable("self", mtype
, mtype
)
730 self.header
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype});")
731 v
.add_decl
("/* allocate {mtype} */")
732 v
.add_decl
("void CHECK_NEW_{c_name}({mtype.ctype} {res}) \{")
733 self.generate_check_attr
(v
, res
, mtype
)
737 redef fun new_visitor
do return new SeparateCompilerVisitor(self)
741 private var type_tables
: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
742 private var resolution_tables
: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
743 protected var method_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
744 protected var attr_tables
: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
746 redef fun display_stats
749 if self.modelbuilder
.toolcontext
.opt_tables_metrics
.value
then
756 print
"# size of subtyping tables"
757 print
"\ttotal \tholes"
760 for t
, table
in type_tables
do
761 total
+= table
.length
762 for e
in table
do if e
== null then holes
+= 1
764 print
"\t{total}\t{holes}"
766 print
"# size of resolution tables"
767 print
"\ttotal \tholes"
770 for t
, table
in resolution_tables
do
771 total
+= table
.length
772 for e
in table
do if e
== null then holes
+= 1
774 print
"\t{total}\t{holes}"
776 print
"# size of methods tables"
777 print
"\ttotal \tholes"
780 for t
, table
in method_tables
do
781 total
+= table
.length
782 for e
in table
do if e
== null then holes
+= 1
784 print
"\t{total}\t{holes}"
786 print
"# size of attributes tables"
787 print
"\ttotal \tholes"
790 for t
, table
in attr_tables
do
791 total
+= table
.length
792 for e
in table
do if e
== null then holes
+= 1
794 print
"\t{total}\t{holes}"
798 # A visitor on the AST of property definition that generate the C code of a separate compilation process.
799 class SeparateCompilerVisitor
800 super AbstractCompilerVisitor
802 redef type COMPILER: SeparateCompiler
804 redef fun adapt_signature
(m
, args
)
806 var msignature
= m
.msignature
.resolve_for
(m
.mclassdef
.bound_mtype
, m
.mclassdef
.bound_mtype
, m
.mclassdef
.mmodule
, true)
807 var recv
= args
.first
808 if recv
.mtype
.ctype
!= m
.mclassdef
.mclass
.mclass_type
.ctype
then
809 args
.first
= self.autobox
(args
.first
, m
.mclassdef
.mclass
.mclass_type
)
811 for i
in [0..msignature
.arity
[ do
812 var t
= msignature
.mparameters
[i
].mtype
813 if i
== msignature
.vararg_rank
then
816 args
[i
+1] = self.autobox
(args
[i
+1], t
)
820 redef fun autobox
(value
, mtype
)
822 if value
.mtype
== mtype
then
824 else if value
.mtype
.ctype
== "val*" and mtype
.ctype
== "val*" then
826 else if value
.mtype
.ctype
== "val*" then
827 return self.new_expr
("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype
)
828 else if mtype
.ctype
== "val*" then
829 var valtype
= value
.mtype
.as(MClassType)
830 var res
= self.new_var
(mtype
)
831 if not compiler
.runtime_type_analysis
.live_types
.has
(valtype
) then
832 self.add
("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
833 self.add
("printf(\"Dead code executed
!\\n\
"); exit(1);")
836 self.add
("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
839 # Bad things will appen!
840 var res
= self.new_var
(mtype
)
841 self.add
("/* {res} left unintialized (cannot convert {value.mtype} to {mtype}) */")
842 self.add
("printf(\"Cast error
: Cannot cast
%s to
%s
.\\n\
", \"{value.mtype}\
", \"{mtype}\
"); exit(1);")
847 # Return a C expression returning the runtime type structure of the value
848 # The point of the method is to works also with primitives types.
849 fun type_info
(value
: RuntimeVariable): String
851 if value
.mtype
.ctype
== "val*" then
852 return "{value}->type"
854 return "(&type_{value.mtype.c_name})"
858 redef fun send
(mmethod
, arguments
)
860 if arguments
.first
.mcasttype
.ctype
!= "val*" then
861 return self.monomorphic_send
(mmethod
, arguments
.first
.mcasttype
, arguments
)
864 var res
: nullable RuntimeVariable
865 var msignature
= mmethod
.intro
.msignature
.resolve_for
(mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.bound_mtype
, mmethod
.intro
.mclassdef
.mmodule
, true)
866 var ret
= msignature
.return_mtype
867 if mmethod
.is_new
then
868 ret
= arguments
.first
.mtype
869 res
= self.new_var
(ret
)
870 else if ret
== null then
873 res
= self.new_var
(ret
)
879 var recv
= arguments
.first
882 self.varargize
(mmethod
.intro
, mmethod
.intro
.msignature
.as(not null), arguments
)
883 for i
in [0..msignature
.arity
[ do
884 var a
= arguments
[i
+1]
885 var t
= msignature
.mparameters
[i
].mtype
886 if i
== msignature
.vararg_rank
then
887 t
= arguments
[i
+1].mcasttype
889 s
.append
(", {t.ctype}")
890 a
= self.autobox
(a
, t
)
894 var consider_null
= not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_other
.value
or mmethod
.name
== "==" or mmethod
.name
== "!="
895 var maybenull
= recv
.mcasttype
isa MNullableType and consider_null
897 self.add
("if ({recv} == NULL) \{")
898 if mmethod
.name
== "==" then
900 var arg
= arguments
[1]
901 if arg
.mcasttype
isa MNullableType then
902 self.add
("{res} = ({arg} == NULL);")
903 else if arg
.mcasttype
isa MNullType then
904 self.add
("{res} = 1; /* is null */")
906 self.add
("{res} = 0; /* {arg.inspect} cannot be null */")
908 else if mmethod
.name
== "!=" then
910 var arg
= arguments
[1]
911 if arg
.mcasttype
isa MNullableType then
912 self.add
("{res} = ({arg} != NULL);")
913 else if arg
.mcasttype
isa MNullType then
914 self.add
("{res} = 0; /* is null */")
916 self.add
("{res} = 1; /* {arg.inspect} cannot be null */")
919 self.add_abort
("Reciever is null")
921 self.add
("\} else \{")
923 if not self.compiler
.modelbuilder
.toolcontext
.opt_no_shortcut_equate
.value
and (mmethod
.name
== "==" or mmethod
.name
== "!=") then
925 # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
926 var arg
= arguments
[1]
927 if arg
.mcasttype
isa MNullType then
928 if mmethod
.name
== "==" then
929 self.add
("{res} = 0; /* arg is null but recv is not */")
931 self.add
("{res} = 1; /* arg is null and recv is not */")
941 if ret
== null then r
= "void" else r
= ret
.ctype
942 var call
= "(({r} (*)({s}))({arguments.first}->class->vft[{mmethod.const_color}]))({ss}) /* {mmethod} on {arguments.first.inspect}*/"
945 self.add
("{res} = {call};")
957 redef fun call
(mmethoddef
, recvtype
, arguments
)
959 var res
: nullable RuntimeVariable
960 var ret
= mmethoddef
.msignature
.return_mtype
961 if mmethoddef
.mproperty
.is_new
then
962 ret
= arguments
.first
.mtype
963 res
= self.new_var
(ret
)
964 else if ret
== null then
967 ret
= ret
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
968 res
= self.new_var
(ret
)
971 if self.compiler
.modelbuilder
.mpropdef2npropdef
.has_key
(mmethoddef
) and
972 self.compiler
.modelbuilder
.mpropdef2npropdef
[mmethoddef
] isa AInternMethPropdef and
973 not compiler
.modelbuilder
.toolcontext
.opt_no_inline_intern
.value
then
974 var frame
= new Frame(self, mmethoddef
, recvtype
, arguments
)
975 frame
.returnlabel
= self.get_name
("RET_LABEL")
976 frame
.returnvar
= res
977 var old_frame
= self.frame
979 self.add
("\{ /* Inline {mmethoddef} ({arguments.join(",")}) */")
980 mmethoddef
.compile_inside_to_c
(self, arguments
)
981 self.add
("{frame.returnlabel.as(not null)}:(void)0;")
983 self.frame
= old_frame
988 self.adapt_signature
(mmethoddef
, arguments
)
991 self.add
("{mmethoddef.c_name}({arguments.join(", ")});")
994 self.add
("{res} = {mmethoddef.c_name}({arguments.join(", ")});")
1000 redef fun vararg_instance
(mpropdef
, recv
, varargs
, elttype
)
1002 # A vararg must be stored into an new array
1003 # The trick is that the dymaic type of the array may depends on the receiver
1004 # of the method (ie recv) if the static type is unresolved
1005 # This is more complex than usual because the unresolved type must not be resolved
1006 # with the current receiver (ie self).
1007 # Therefore to isolate the resolution from self, a local Frame is created.
1008 # One can see this implementation as an inlined method of the receiver whose only
1009 # job is to allocate the array
1010 var old_frame
= self.frame
1011 var frame
= new Frame(self, mpropdef
, mpropdef
.mclassdef
.bound_mtype
, [recv
])
1013 #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
1014 var res
= self.array_instance
(varargs
, elttype
)
1015 self.frame
= old_frame
1019 redef fun isset_attribute
(a
, recv
)
1021 self.check_recv_notnull
(recv
)
1022 var res
= self.new_var
(bool_type
)
1024 # What is the declared type of the attribute?
1025 var mtype
= a
.intro
.static_mtype
.as(not null)
1026 var intromclassdef
= a
.intro
.mclassdef
1027 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1029 if mtype
isa MNullableType then
1030 self.add
("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
1034 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1035 self.add
("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
1038 if mtype
.ctype
== "val*" then
1039 self.add
("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
1041 self.add
("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
1047 redef fun read_attribute
(a
, recv
)
1049 self.check_recv_notnull
(recv
)
1051 # What is the declared type of the attribute?
1052 var ret
= a
.intro
.static_mtype
.as(not null)
1053 var intromclassdef
= a
.intro
.mclassdef
1054 ret
= ret
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1056 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1057 # Get the attribute or a box (ie. always a val*)
1058 var cret
= self.object_type
.as_nullable
1059 var res
= self.new_var
(cret
)
1062 self.add
("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
1064 # Check for Uninitialized attribute
1065 if not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1066 self.add
("if ({res} == NULL) \{")
1067 self.add_abort
("Uninitialized attribute {a.name}")
1071 # Return the attribute or its unboxed version
1072 # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
1073 return self.autobox
(res
, ret
)
1075 var res
= self.new_var
(ret
)
1076 self.add
("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
1078 # Check for Uninitialized attribute
1079 if ret
.ctype
== "val*" and not ret
isa MNullableType and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then
1080 self.add
("if ({res} == NULL) \{")
1081 self.add_abort
("Uninitialized attribute {a.name}")
1089 redef fun write_attribute
(a
, recv
, value
)
1091 self.check_recv_notnull
(recv
)
1093 # What is the declared type of the attribute?
1094 var mtype
= a
.intro
.static_mtype
.as(not null)
1095 var intromclassdef
= a
.intro
.mclassdef
1096 mtype
= mtype
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1098 # Adapt the value to the declared type
1099 value
= self.autobox
(value
, mtype
)
1101 if self.compiler
.modelbuilder
.toolcontext
.opt_no_union_attribute
.value
then
1102 var attr
= "{recv}->attrs[{a.const_color}]"
1103 if mtype
.ctype
!= "val*" then
1104 assert mtype
isa MClassType
1105 # The attribute is primitive, thus we store it in a box
1106 # The trick is to create the box the first time then resuse the box
1107 self.add
("if ({attr} != NULL) \{")
1108 self.add
("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
1109 self.add
("\} else \{")
1110 value
= self.autobox
(value
, self.object_type
.as_nullable
)
1111 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1114 # The attribute is not primitive, thus store it direclty
1115 self.add
("{attr} = {value}; /* {a} on {recv.inspect} */")
1118 self.add
("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
1122 redef fun init_instance
(mtype
)
1124 var compiler
= self.compiler
1125 if mtype
isa MGenericType and mtype
.need_anchor
then
1126 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1127 var recv
= self.frame
.arguments
.first
1128 var recv_type_info
= self.type_info
(recv
)
1129 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1130 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1132 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1135 compiler
.undead_types
.add
(mtype
)
1136 return self.new_expr
("NEW_{mtype.mclass.c_name}((struct type *) &type_{mtype.c_name})", mtype
)
1139 redef fun check_init_instance
(value
, mtype
)
1141 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_initialization
.value
then return
1142 self.add
("CHECK_NEW_{mtype.mclass.c_name}({value});")
1145 redef fun type_test
(value
, mtype
, tag
)
1147 self.add
("/* {value.inspect} isa {mtype} */")
1148 var compiler
= self.compiler
1150 var recv
= self.frame
.arguments
.first
1151 var recv_type_info
= self.type_info
(recv
)
1153 var res
= self.new_var
(bool_type
)
1155 var cltype
= self.get_name
("cltype")
1156 self.add_decl
("int {cltype};")
1157 var idtype
= self.get_name
("idtype")
1158 self.add_decl
("int {idtype};")
1160 var maybe_null
= self.maybe_null
(value
)
1161 var accept_null
= "0"
1163 if ntype
isa MNullableType then
1168 if value
.mcasttype
.is_subtype
(self.frame
.mpropdef
.mclassdef
.mmodule
, self.frame
.mpropdef
.mclassdef
.bound_mtype
, mtype
) then
1169 self.add
("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
1170 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1171 self.compiler
.count_type_test_skipped
[tag
] += 1
1172 self.add
("count_type_test_skipped_{tag}++;")
1177 if ntype
.need_anchor
then
1178 var type_struct
= self.get_name
("type_struct")
1179 self.add_decl
("struct type* {type_struct};")
1181 # Either with resolution_table with a direct resolution
1182 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, ntype
)
1183 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1184 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {ntype.const_color})];")
1186 self.add
("{type_struct} = {recv_type_info}->resolution_table->types[{ntype.const_color}];")
1188 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1189 self.compiler
.count_type_test_unresolved
[tag
] += 1
1190 self.add
("count_type_test_unresolved_{tag}++;")
1192 self.add
("{cltype} = {type_struct}->color;")
1193 self.add
("{idtype} = {type_struct}->id;")
1194 if maybe_null
and accept_null
== "0" then
1195 var is_nullable
= self.get_name
("is_nullable")
1196 self.add_decl
("short int {is_nullable};")
1197 self.add
("{is_nullable} = {type_struct}->is_nullable;")
1198 accept_null
= is_nullable
.to_s
1200 else if ntype
isa MClassType then
1201 compiler
.undead_types
.add
(mtype
)
1202 self.add
("{cltype} = type_{mtype.c_name}.color;")
1203 self.add
("{idtype} = type_{mtype.c_name}.id;")
1204 if compiler
.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1205 self.compiler
.count_type_test_resolved
[tag
] += 1
1206 self.add
("count_type_test_resolved_{tag}++;")
1209 self.add
("printf(\"NOT YET IMPLEMENTED: type_test
(%s
, {mtype}).\\n\
", \"{value.inspect}\
"); exit(1);")
1212 # check color is in table
1214 self.add
("if({value} == NULL) \{")
1215 self.add
("{res} = {accept_null};")
1216 self.add
("\} else \{")
1218 var value_type_info
= self.type_info
(value
)
1219 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1220 self.add
("{cltype} = HASH({value_type_info}->color, {idtype});")
1222 self.add
("if({cltype} >= {value_type_info}->table_size) \{")
1223 self.add
("{res} = 0;")
1224 self.add
("\} else \{")
1225 self.add
("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
1234 redef fun is_same_type_test
(value1
, value2
)
1236 var res
= self.new_var
(bool_type
)
1237 # Swap values to be symetric
1238 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1243 if value1
.mtype
.ctype
!= "val*" then
1244 if value2
.mtype
== value1
.mtype
then
1245 self.add
("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
1246 else if value2
.mtype
.ctype
!= "val*" then
1247 self.add
("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
1249 var mtype1
= value1
.mtype
.as(MClassType)
1250 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name}); /* is_same_type_test */")
1253 self.add
("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {value1}->class == {value2}->class); /* is_same_type_test */")
1258 redef fun class_name_string
(value
)
1260 var res
= self.get_name
("var_class_name")
1261 self.add_decl
("const char* {res};")
1262 if value
.mtype
.ctype
== "val*" then
1263 self.add
"{res} = {value} == NULL ? \"null\
" : {value}->type->name;"
1265 self.add
"{res} = type_{value.mtype.c_name}.name;"
1270 redef fun equal_test
(value1
, value2
)
1272 var res
= self.new_var
(bool_type
)
1273 if value2
.mtype
.ctype
!= "val*" and value1
.mtype
.ctype
== "val*" then
1278 if value1
.mtype
.ctype
!= "val*" then
1279 if value2
.mtype
== value1
.mtype
then
1280 self.add
("{res} = {value1} == {value2};")
1281 else if value2
.mtype
.ctype
!= "val*" then
1282 self.add
("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
1284 var mtype1
= value1
.mtype
.as(MClassType)
1285 self.add
("{res} = ({value2} != NULL) && ({value2}->class == (struct class*) &class_{mtype1.c_name});")
1286 self.add
("if ({res}) \{")
1287 self.add
("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
1292 var maybe_null
= true
1293 var test
= new Array[String]
1294 var t1
= value1
.mcasttype
1295 if t1
isa MNullableType then
1296 test
.add
("{value1} != NULL")
1301 var t2
= value2
.mcasttype
1302 if t2
isa MNullableType then
1303 test
.add
("{value2} != NULL")
1309 var incompatible
= false
1311 if t1
.ctype
!= "val*" then
1314 # No need to compare class
1315 else if t2
.ctype
!= "val*" then
1317 else if can_be_primitive
(value2
) then
1318 test
.add
("{value1}->class == {value2}->class")
1322 else if t2
.ctype
!= "val*" then
1324 if can_be_primitive
(value1
) then
1325 test
.add
("{value1}->class == {value2}->class")
1333 if incompatible
then
1335 self.add
("{res} = {value1} == {value2}; /* incompatible types {t1} vs. {t2}; but may be NULL*/")
1338 self.add
("{res} = 0; /* incompatible types {t1} vs. {t2}; cannot be NULL */")
1342 if primitive
!= null then
1343 test
.add
("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
1344 else if can_be_primitive
(value1
) and can_be_primitive
(value2
) then
1345 test
.add
("{value1}->class == {value2}->class")
1346 var s
= new Array[String]
1347 for t
, v
in self.compiler
.box_kinds
do
1348 s
.add
"({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
1350 test
.add
("({s.join(" || ")})")
1352 self.add
("{res} = {value1} == {value2};")
1355 self.add
("{res} = {value1} == {value2} || ({test.join(" && ")});")
1359 fun can_be_primitive
(value
: RuntimeVariable): Bool
1361 var t
= value
.mcasttype
1362 if t
isa MNullableType then t
= t
.mtype
1363 if not t
isa MClassType then return false
1364 var k
= t
.mclass
.kind
1365 return k
== interface_kind
or t
.ctype
!= "val*"
1368 fun maybe_null
(value
: RuntimeVariable): Bool
1370 var t
= value
.mcasttype
1371 return t
isa MNullableType or t
isa MNullType
1374 redef fun array_instance
(array
, elttype
)
1376 var nclass
= self.get_class
("NativeArray")
1377 var arrayclass
= self.get_class
("Array")
1378 var arraytype
= arrayclass
.get_mtype
([elttype
])
1379 var res
= self.init_instance
(arraytype
)
1380 self.add
("\{ /* {res} = array_instance Array[{elttype}] */")
1381 var length
= self.int_instance
(array
.length
)
1382 var nat
= native_array_instance
(elttype
, length
)
1383 for i
in [0..array
.length
[ do
1384 var r
= self.autobox
(array
[i
], self.object_type
)
1385 self.add
("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
1387 self.send
(self.get_property
("with_native", arrayclass
.intro
.bound_mtype
), [res
, nat
, length
])
1388 self.check_init_instance
(res
, arraytype
)
1393 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable
1395 var mtype
= self.get_class
("NativeArray").get_mtype
([elttype
])
1396 assert mtype
isa MGenericType
1397 var compiler
= self.compiler
1398 if mtype
.need_anchor
then
1399 link_unresolved_type
(self.frame
.mpropdef
.mclassdef
, mtype
)
1400 var recv
= self.frame
.arguments
.first
1401 var recv_type_info
= self.type_info
(recv
)
1402 if compiler
.modelbuilder
.toolcontext
.opt_phmod_typing
.value
or compiler
.modelbuilder
.toolcontext
.opt_phand_typing
.value
then
1403 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype
)
1405 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype
)
1408 compiler
.undead_types
.add
(mtype
)
1409 return self.new_expr
("NEW_{mtype.mclass.c_name}({length}, (struct type *) &type_{mtype.c_name})", mtype
)
1412 redef fun native_array_def
(pname
, ret_type
, arguments
)
1414 var elttype
= arguments
.first
.mtype
1415 var nclass
= self.get_class
("NativeArray")
1416 var recv
= "((struct instance_{nclass.c_name}*){arguments[0]})->values"
1417 if pname
== "[]" then
1418 self.ret
(self.new_expr
("{recv}[{arguments[1]}]", ret_type
.as(not null)))
1420 else if pname
== "[]=" then
1421 self.add
("{recv}[{arguments[1]}]={arguments[2]};")
1423 else if pname
== "copy_to" then
1424 var recv1
= "((struct instance_{nclass.c_name}*){arguments[1]})->values"
1425 self.add
("memcpy({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
1430 redef fun calloc_array
(ret_type
, arguments
)
1432 var mclass
= self.get_class
("ArrayCapable")
1433 var ft
= mclass
.mclass_type
.arguments
.first
.as(MParameterType)
1434 var res
= self.native_array_instance
(ft
, arguments
[1])
1438 fun link_unresolved_type
(mclassdef
: MClassDef, mtype
: MType) do
1439 assert mtype
.need_anchor
1440 var compiler
= self.compiler
1441 if not compiler
.live_unresolved_types
.has_key
(self.frame
.mpropdef
.mclassdef
) then
1442 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
] = new HashSet[MType]
1444 compiler
.live_unresolved_types
[self.frame
.mpropdef
.mclassdef
].add
(mtype
)
1448 # The C function associated to a methoddef separately compiled
1449 class SeparateRuntimeFunction
1450 super AbstractRuntimeFunction
1452 redef fun build_c_name
: String do return "{mmethoddef.c_name}"
1454 redef fun to_s
do return self.mmethoddef
.to_s
1456 redef fun compile_to_c
(compiler
)
1458 var mmethoddef
= self.mmethoddef
1460 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1461 var v
= compiler
.new_visitor
1462 var selfvar
= new RuntimeVariable("self", recv
, recv
)
1463 var arguments
= new Array[RuntimeVariable]
1464 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1467 var msignature
= mmethoddef
.msignature
.resolve_for
(mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.bound_mtype
, mmethoddef
.mclassdef
.mmodule
, true)
1469 var sig
= new Buffer
1470 var comment
= new Buffer
1471 var ret
= msignature
.return_mtype
1473 sig
.append
("{ret.ctype} ")
1474 else if mmethoddef
.mproperty
.is_new
then
1476 sig
.append
("{ret.ctype} ")
1480 sig
.append
(self.c_name
)
1481 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1482 comment
.append
("(self: {selfvar}")
1483 arguments
.add
(selfvar
)
1484 for i
in [0..msignature
.arity
[ do
1485 var mtype
= msignature
.mparameters
[i
].mtype
1486 if i
== msignature
.vararg_rank
then
1487 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1489 comment
.append
(", {mtype}")
1490 sig
.append
(", {mtype.ctype} p{i}")
1491 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1492 arguments
.add
(argvar
)
1497 comment
.append
(": {ret}")
1499 compiler
.header
.add_decl
("{sig};")
1501 v
.add_decl
("/* method {self} for {comment} */")
1502 v
.add_decl
("{sig} \{")
1504 frame
.returnvar
= v
.new_var
(ret
)
1506 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1508 if recv
!= arguments
.first
.mtype
then
1509 #print "{self} {recv} {arguments.first}"
1511 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1513 v
.add
("{frame.returnlabel.as(not null)}:;")
1515 v
.add
("return {frame.returnvar.as(not null)};")
1521 # The C function associated to a methoddef on a primitive type, stored into a VFT of a class
1522 # The first parameter (the reciever) is always typed by val* in order to accept an object value
1523 class VirtualRuntimeFunction
1524 super AbstractRuntimeFunction
1526 redef fun build_c_name
: String do return "VIRTUAL_{mmethoddef.c_name}"
1528 redef fun to_s
do return self.mmethoddef
.to_s
1530 redef fun compile_to_c
(compiler
)
1532 var mmethoddef
= self.mmethoddef
1534 var recv
= self.mmethoddef
.mclassdef
.bound_mtype
1535 var v
= compiler
.new_visitor
1536 var selfvar
= new RuntimeVariable("self", v
.object_type
, recv
)
1537 var arguments
= new Array[RuntimeVariable]
1538 var frame
= new Frame(v
, mmethoddef
, recv
, arguments
)
1541 var sig
= new Buffer
1542 var comment
= new Buffer
1544 # Because the function is virtual, the signature must match the one of the original class
1545 var intromclassdef
= self.mmethoddef
.mproperty
.intro
.mclassdef
1546 var msignature
= mmethoddef
.mproperty
.intro
.msignature
.resolve_for
(intromclassdef
.bound_mtype
, intromclassdef
.bound_mtype
, intromclassdef
.mmodule
, true)
1547 var ret
= msignature
.return_mtype
1549 sig
.append
("{ret.ctype} ")
1550 else if mmethoddef
.mproperty
.is_new
then
1552 sig
.append
("{ret.ctype} ")
1556 sig
.append
(self.c_name
)
1557 sig
.append
("({selfvar.mtype.ctype} {selfvar}")
1558 comment
.append
("(self: {selfvar}")
1559 arguments
.add
(selfvar
)
1560 for i
in [0..msignature
.arity
[ do
1561 var mtype
= msignature
.mparameters
[i
].mtype
1562 if i
== msignature
.vararg_rank
then
1563 mtype
= v
.get_class
("Array").get_mtype
([mtype
])
1565 comment
.append
(", {mtype}")
1566 sig
.append
(", {mtype.ctype} p{i}")
1567 var argvar
= new RuntimeVariable("p{i}", mtype
, mtype
)
1568 arguments
.add
(argvar
)
1573 comment
.append
(": {ret}")
1575 compiler
.header
.add_decl
("{sig};")
1577 v
.add_decl
("/* method {self} for {comment} */")
1578 v
.add_decl
("{sig} \{")
1580 frame
.returnvar
= v
.new_var
(ret
)
1582 frame
.returnlabel
= v
.get_name
("RET_LABEL")
1584 if recv
!= arguments
.first
.mtype
then
1585 #print "{self} {recv} {arguments.first}"
1587 mmethoddef
.compile_inside_to_c
(v
, arguments
)
1589 v
.add
("{frame.returnlabel.as(not null)}:;")
1591 v
.add
("return {frame.returnvar.as(not null)};")
1597 redef fun call
(v
, arguments
) do abort
1601 fun const_color
: String do return "COLOR_{c_name}"
1604 redef class MProperty
1605 fun const_color
: String do return "COLOR_{c_name}"