/[eiffelstudio]/branches/CAT_mono/Src/Eiffel/eiffel/genericity/cl_type_i.e
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Revision 37130 - (hide annotations)
Mon May 5 18:08:43 2003 UTC (16 years, 9 months ago) by manus
Original Path: trunk/Src/bench/Eiffel/eiffel/genericity/cl_type_i.e
File size: 13985 byte(s)
Minor optimization of `element_type to avoid useless information retrieval.
Removed `is_out' related code since we are now using TYPED_POINTER [XX] to
  represent them.

1 manus 26913 indexing
2     description: "Type class."
3     date: "$Date$"
4     revision: "$Revision$"
5 grator 18
6     class CL_TYPE_I
7    
8     inherit
9     TYPE_I
10     redefine
11     is_reference,
12 manus 26913 is_true_expanded,
13 xavierl 4623 is_separate,
14 grator 236 is_valid,
15 manus 11218 is_explicit,
16 manus 28380 is_external,
17 grator 18 same_as,
18     c_type,
19 grator 930 instantiation_in,
20 manus 10818 complete_instantiation_in,
21     conforms_to_array,
22     generated_id,
23 manus 11298 generate_cid,
24 manus 14013 make_gen_type_byte_code,
25     generate_cid_array,
26 manus 30169 generate_cid_init,
27 manus 35665 generate_gen_type_il,
28     generate_expanded_creation
29 grator 18 end
30 manus 30169
31     DEBUG_OUTPUT
32     export
33     {NONE} all
34     end
35 grator 18
36 manus 33952 SHARED_IL_CASING
37     export
38     {NONE} all
39     end
40    
41 manus 35665 SHARED_GENERATION
42     export
43     {NONE} all
44     end
45    
46     SHARED_DECLARATIONS
47     export
48     {NONE} all
49     end
50    
51 manus 30224 create
52     make
53    
54     feature {NONE} -- Initialization
55    
56     make (id: INTEGER) is
57 manus 30293 -- Create new instance of `Current' with `class_id'
58 manus 30224 -- assigned with `id'.
59     require
60     valid_id: id > 0
61     do
62 manus 30293 class_id := id
63 manus 30224 ensure
64 manus 30293 class_id_set: class_id = id
65 manus 30224 end
66    
67 manus 26913 feature -- Access
68 grator 18
69 manus 30293 class_id: INTEGER
70 grator 18 -- Base class id of the type class
71    
72     meta_generic: META_GENERIC is
73     -- Meta generic array describing the type class
74     do
75     -- No meta generic in non-generic type
76 manus 9655 end
77 grator 18
78 manus 10890 cr_info : CREATE_INFO
79     -- Additional information for the creation
80     -- of generic types with anchored parameters
81    
82 manus 10818 true_generics : ARRAY [TYPE_I] is
83     -- Array of generics: no mapping reference -> REFERENCE_I
84     do
85     -- Non generic types don't have them
86     end
87    
88 grator 18 base_class: CLASS_C is
89     -- Base class associated to the class type
90     do
91 manus 30293 Result := System.class_of_id (class_id)
92 manus 9655 end
93 grator 18
94 manus 26913 type_a: CL_TYPE_A is
95 grator 236 do
96 manus 30293 create Result.make (class_id)
97 manus 26913 Result.set_is_true_expanded (is_true_expanded)
98     Result.set_is_separate (is_separate)
99 manus 9655 end
100 grator 236
101 manus 33952 il_type_name (a_prefix: STRING): STRING is
102 manus 26913 -- Class name of current type.
103 manus 29681 local
104     l_class_c: like base_class
105 manus 34253 l_is_precompiled: BOOLEAN
106     l_cl_type: like associated_class_type
107 grator 18 do
108 manus 29681 l_class_c := base_class
109     if l_class_c.is_external then
110 manus 34253 Result := clone (l_class_c.external_class_name)
111 manus 29681 else
112 manus 34253 l_is_precompiled := l_class_c.is_precompiled
113     if l_is_precompiled then
114     l_cl_type := associated_class_type
115     l_is_precompiled := l_cl_type.is_precompiled
116     if l_is_precompiled then
117     Result := associated_class_type.il_type_name (a_prefix)
118     end
119     end
120     if not l_is_precompiled then
121     Result := internal_il_type_name (clone (l_class_c.name), a_prefix)
122     end
123 manus 29681 end
124 manus 11218 end
125    
126 grator 18 instantiation_in (other: GEN_TYPE_I): CL_TYPE_I is
127     -- Instantiation of Current in context of `other'
128 grator 282 require else
129     True
130 grator 18 do
131 manus 9655 Result := Current
132     end
133 grator 18
134 manus 10818 complete_instantiation_in (other: GEN_TYPE_I): CL_TYPE_I is
135     -- Instantiation of Current in context of `other'
136     require else
137     True
138     do
139     Result := Current
140     end
141    
142 grator 18 description: ATTR_DESC is
143     -- Type description for skeletons
144     local
145 michaels 7681 exp: EXPANDED_DESC
146     ref: REFERENCE_DESC
147 grator 485 do
148 manus 26913 if is_true_expanded then
149 manus 10140 !! exp
150 manus 26913 is_true_expanded := False
151 manus 32282 exp.set_class_type (base_class.types.search_item (Current))
152 manus 26913 is_true_expanded := True
153 manus 13232 exp.set_type_i (Current)
154 manus 9655 Result := exp
155 xavierl 4623 elseif is_separate then
156     -- FIXME
157     Result := c_type.description
158 grator 18 else
159 manus 9655 Result := c_type.description
160     end
161 michaels 7681
162     ref ?= Result
163     if ref /= Void then
164 manus 34621 ref.set_type_i (Current)
165 michaels 7681 end
166 manus 9655 end
167 grator 18
168     c_type: TYPE_C is
169     -- Associated C type
170     do
171 manus 9655 Result := Reference_c_type
172     end
173 grator 18
174 manus 28618 typecode: INTEGER is
175     -- Typecode for TUPLE element.
176     do
177     Result := feature {SHARED_TYPECODE}.reference_code
178     end
179    
180 grator 18 associated_class_type: CLASS_TYPE is
181     -- Associated class type
182 michaels 7681 require
183 manus 16188 -- has: has_associated_class_type
184 grator 485 do
185 manus 26913 if is_true_expanded then
186     is_true_expanded := False
187 manus 32282 Result := base_class.types.search_item (Current)
188 manus 26913 is_true_expanded := True
189 xavierl 4623 elseif is_separate then
190 manus 11065 is_separate := False
191 manus 32282 Result := base_class.types.search_item (Current)
192 manus 11065 is_separate := True
193 grator 485 else
194 manus 32282 Result := base_class.types.search_item (Current)
195 manus 9655 end
196     end
197 grator 18
198     type_id: INTEGER is
199     -- Type id of the correponding class type
200     do
201 manus 9655 Result := associated_class_type.type_id
202     end
203 grator 18
204 manus 26913 sk_value: INTEGER is
205     -- Generate SK value associated to the current type.
206 grator 18 do
207 xavierl 4623 -- FIXME????: separate
208 manus 26913 if not is_true_expanded then
209 manus 31263 Result := Sk_ref | (type_id - 1)
210 grator 18 else
211 manus 26913 is_true_expanded := False
212 manus 31263 Result := Sk_exp | (type_id - 1)
213 manus 26913 is_true_expanded := True
214 manus 9655 end
215     end
216 grator 18
217 manus 26913 cecil_value: INTEGER is
218     do
219     -- FIXME????: separate
220     if not is_true_expanded then
221     Result := Sk_dtype
222     else
223 manus 31263 Result := Sk_exp | class_id
224 manus 26913 end
225     end
226    
227 grator 18 hash_code: INTEGER is
228     -- Hash code for current type
229     do
230 manus 30293 Result := Other_code + class_id
231 manus 9655 end
232 grator 18
233 manus 26913 feature -- Status
234    
235 manus 31541 element_type: INTEGER_8 is
236     -- Void element type
237     do
238 manus 31580 if is_expanded and base_class.is_external then
239     -- We only support expanded for external class at the moment.
240 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_valuetype
241     else
242 manus 37130 if class_id = System.system_string_class.compiled_class.class_id then
243 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_string
244 manus 37130 elseif class_id = System.system_object_id then
245 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_object
246     else
247     Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_class
248     end
249     end
250     end
251    
252 manus 26913 is_true_expanded: BOOLEAN
253     -- Is the type expanded?
254    
255     is_separate: BOOLEAN
256     -- Is the type separate?
257    
258     is_enum: BOOLEAN is
259     -- Is current type an IL enum type?
260     -- Useful to find out if some call optimization can be done
261     -- in FEATURE_B.
262     require
263     il_generation: System.il_generation
264 grator 18 do
265 manus 26913 Result := is_true_expanded and then base_class.is_enum
266     end
267    
268 manus 28380 is_external: BOOLEAN is
269     -- Is current type an IL enum type?
270     -- Useful to find out if some call optimization can be done
271     -- in FEATURE_B.
272     do
273     Result := base_class.is_external
274     end
275    
276 manus 26913 is_valid: BOOLEAN is
277 manus 35544 -- Is the base class still in the system and matches its specification?
278 manus 26913 do
279 manus 35544 Result := base_class /= Void and then (base_class.generics = Void)
280 manus 26913 end
281    
282     is_reference: BOOLEAN is
283     -- Is the type a reference type ?
284     do
285     Result := not is_true_expanded
286     end;
287    
288     is_explicit: BOOLEAN is
289    
290     do
291     Result := (cr_info = Void) or else is_expanded
292     end
293    
294     has_associated_class_type: BOOLEAN is
295     -- Has `Current' an associated class type?
296     do
297     if is_true_expanded then
298     is_true_expanded := False
299     Result := base_class.types.has_type (Current)
300     is_true_expanded := True
301     elseif is_separate then
302     is_separate := False
303     Result := base_class.types.has_type (Current)
304     is_separate := True
305 grator 18 else
306 manus 26913 Result := base_class.types.has_type (Current)
307 manus 9655 end
308     end
309 grator 18
310 manus 26913 same_as (other: TYPE_I): BOOLEAN is
311     -- Is `other' equal to Current ?
312     local
313     other_cl_type: CL_TYPE_I
314 grator 508 do
315 manus 26913 other_cl_type ?= other
316     Result := other_cl_type /= Void -- FIXME
317 manus 30293 and then other_cl_type.class_id = class_id
318 manus 26913 and then other_cl_type.is_true_expanded = is_true_expanded
319     and then other_cl_type.is_separate = is_separate
320     and then other_cl_type.meta_generic = Void
321     and then other_cl_type.true_generics = Void
322     end
323    
324     feature -- Setting
325    
326     set_is_true_expanded (b: BOOLEAN) is
327     -- Assign `b' to `is_true_expanded'.
328     do
329     is_true_expanded := b
330 manus 35178 ensure
331     is_true_expanded_set: is_true_expanded = b
332 manus 26913 end
333    
334     set_is_separate (b: BOOLEAN) is
335     -- Assign `b' to `is_separate'.
336     do
337     is_separate := b
338 manus 35178 ensure
339     is_separate_set: is_separate = b
340 manus 26913 end
341    
342     set_cr_info (cinfo : CREATE_INFO) is
343     -- Set `cr_info' to `cinfo'.
344 manus 30224 require
345     create_info_not_void: cinfo /= Void
346 manus 26913 do
347     cr_info := cinfo
348     ensure
349     cr_info_set : cr_info = cinfo
350     end
351    
352     feature -- Formatting
353    
354     append_signature (st: STRUCTURED_TEXT) is
355     do
356     if is_true_expanded then
357     st.add_string ("expanded ")
358     elseif is_separate then
359     st.add_string ("separate ")
360     end
361     base_class.append_signature (st)
362     end
363    
364     dump (buffer: GENERATION_BUFFER) is
365     do
366 manus 30169 buffer.putstring (debug_output)
367 manus 26913 end
368    
369     feature -- C generation
370    
371 manus 35665 generate_expanded_creation (byte_code: BYTE_CODE; reg: REGISTRABLE; workbench_mode: BOOLEAN) is
372     -- Generate creation of expanded object associated to Current.
373     local
374     gen_type: GEN_TYPE_I
375     written_class: CLASS_C
376     class_type, written_type: CLASS_TYPE
377     creation_feature: FEATURE_I
378     c_name: STRING
379     buffer: GENERATION_BUFFER
380     do
381     buffer := byte_code.buffer
382    
383     gen_type ?= Current
384    
385     if gen_type /= Void then
386     byte_code.generate_block_open
387     byte_code.generate_gen_type_conversion (gen_type)
388     end
389     reg.print_register
390     if workbench_mode then
391     -- RTLX is a macro used to create
392     -- expanded types
393     if gen_type /= Void then
394     buffer.putstring (" = RTLX(typres")
395     else
396     buffer.putstring (" = RTLX(RTUD(")
397     buffer.generate_type_id (associated_class_type.static_type_id)
398     buffer.putchar (')')
399     end
400     else
401     if gen_type /= Void then
402     buffer.putstring (" = RTLN(typres")
403     else
404     buffer.putstring (" = RTLN(")
405     buffer.putint (type_id - 1)
406     end
407     class_type := associated_class_type
408     creation_feature := class_type.associated_class.creation_feature
409     if creation_feature /= Void then
410     written_class := System.class_of_id (creation_feature.written_in)
411     if written_class.generics = Void then
412     written_type := written_class.types.first
413     else
414     written_type :=
415     written_class.meta_type (class_type.type).associated_class_type
416     end
417     c_name := Encoder.feature_name (written_type.static_type_id,
418     creation_feature.body_index)
419 manus 35702 buffer.putstring (");")
420     buffer.new_line
421 manus 35665 buffer.putstring (c_name)
422     buffer.putchar ('(')
423     reg.print_register
424     Extern_declarations.add_routine_with_signature (Void_c_type,
425     c_name, <<"EIF_REFERENCE">>)
426     end
427     end
428     buffer.putchar (')')
429     buffer.putchar (';')
430    
431     if gen_type /= Void then
432     byte_code.generate_block_close
433     end
434     buffer.new_line
435     end
436    
437 manus 26913 generate_cecil_value (buffer: GENERATION_BUFFER) is
438     -- Generate cecil value
439     do
440 xavierl 4623 -- FIXME????: separate
441 manus 26913 if not is_true_expanded then
442     buffer.putstring ("SK_DTYPE")
443 grator 508 else
444 manus 26913 buffer.putstring ("SK_EXP + (uint32) ")
445 manus 34563 buffer.putint (associated_class_type.type_id - 1)
446 manus 9655 end
447     end
448 grator 508
449 grator 930 feature -- Array optimization
450    
451     conforms_to_array: BOOLEAN is
452     do
453     Result := base_class.conform_to (array_class_c)
454 manus 9655 end
455 grator 930
456     feature {NONE} -- Array optimization
457    
458     array_class_c: CLASS_C is
459     once
460     Result := System.array_class.compiled_class
461 manus 9655 end
462 grator 930
463 manus 10818 feature -- Generic conformance
464    
465     generated_id (final_mode : BOOLEAN) : INTEGER is
466 manus 11298
467 manus 10818 do
468 manus 11298 if final_mode then
469     Result := type_id - 1
470 manus 10818 else
471 manus 26913 Result := associated_class_type.static_type_id-1
472 manus 10818 end
473 manus 11298
474 manus 26913 if is_true_expanded then
475     Result := Expanded_level - Result
476 manus 11298 end
477 manus 10818 end
478    
479 manus 11599 generate_cid (buffer : GENERATION_BUFFER; final_mode, use_info : BOOLEAN) is
480 manus 11298
481 manus 10818 do
482 manus 11209 if
483     use_info and then (cr_info /= Void)
484 manus 26913 and then not is_expanded
485 manus 11209 then
486     -- It's an anchored type
487 manus 11599 cr_info.generate_cid (buffer, final_mode)
488 manus 10890 end
489 manus 11599 buffer.putint (generated_id (final_mode))
490     buffer.putstring (", ")
491 manus 10818 end
492    
493 manus 10890 make_gen_type_byte_code (ba : BYTE_ARRAY; use_info : BOOLEAN) is
494 manus 10818 do
495 manus 11209 if
496     use_info and then (cr_info /= Void)
497 manus 26913 and then not is_expanded
498 manus 11209 then
499     -- It's an anchored type
500 manus 10890 cr_info.make_gen_type_byte_code (ba)
501     end
502 manus 10818 ba.append_short_integer (generated_id (False))
503     end
504    
505 manus 14013 generate_cid_array (buffer : GENERATION_BUFFER;
506     final_mode, use_info : BOOLEAN; idx_cnt : COUNTER) is
507     local
508     dummy : INTEGER
509     do
510     if
511     use_info and then (cr_info /= Void)
512 manus 26913 and then not is_expanded
513 manus 14013 then
514     -- It's an anchored type
515     cr_info.generate_cid_array (buffer, final_mode, idx_cnt)
516     end
517     buffer.putint (generated_id (final_mode))
518     buffer.putstring (", ")
519    
520     -- Increment counter
521     dummy := idx_cnt.next
522     end
523    
524     generate_cid_init (buffer : GENERATION_BUFFER;
525     final_mode, use_info : BOOLEAN; idx_cnt : COUNTER) is
526     local
527     dummy : INTEGER
528     do
529     if
530     use_info and then (cr_info /= Void)
531 manus 26913 and then not is_expanded
532 manus 14013 then
533     -- It's an anchored type
534     cr_info.generate_cid_init (buffer, final_mode, idx_cnt)
535     end
536    
537     dummy := idx_cnt.next
538     end
539 manus 30169
540     feature -- Generic conformance for IL
541    
542     generate_gen_type_il (il_generator: IL_CODE_GENERATOR; use_info : BOOLEAN) is
543     -- `use_info' is true iff we generate code for a
544     -- creation instruction.
545     do
546     if use_info and then cr_info /= Void then
547 manus 30582 -- It's an anchored type, we call feature
548     -- that will tell us the real type of the
549     -- anchor in the context of Current.
550     cr_info.generate_il_type
551     else
552     il_generator.generate_class_type_instance (Current)
553 manus 30169 end
554     end
555    
556     feature -- Output
557    
558     debug_output: STRING is
559     -- String that should be displayed in debugger to represent `Current'.
560     do
561     create Result.make (32)
562     if is_true_expanded then
563     Result.append ("expanded ")
564     elseif is_separate then
565     Result.append ("separate ")
566     end
567     Result.append (base_class.name_in_upper)
568     end
569 manus 33952
570     feature {NONE} -- Implementation
571    
572     internal_il_type_name (a_base_name, a_prefix: STRING): STRING is
573     -- Full type name of `a_base_name' using `a_prefix' in IL code generation
574     -- with namespace specification
575     require
576     a_base_name_not_void: a_base_name /= Void
577     local
578     l_name: STRING
579     do
580     Result := a_base_name
581     l_name := base_class.lace_class.actual_namespace
582     if a_prefix /= Void then
583     if l_name.is_empty then
584     l_name := a_prefix + "."
585     else
586 manus 34253 l_name := il_casing.namespace_casing (System.dotnet_naming_convention,
587     l_name) + "." + a_prefix + "."
588 manus 33952 end
589     else
590     if not l_name.is_empty then
591 manus 34253 l_name := il_casing.namespace_casing (System.dotnet_naming_convention,
592     l_name) + "."
593 manus 33952 end
594     end
595 manus 34253 Result := l_name + il_casing.pascal_casing (System.dotnet_naming_convention,
596     Result, feature {IL_CASING_CONVERSION}.upper_case)
597 manus 33952 ensure
598     internal_il_type_name_not_void: Result /= Void
599     internal_il_type_name_not_empty: not Result.is_empty
600     end
601    
602 grator 18 end

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