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Revision 40771 - (hide annotations)
Thu Dec 11 23:36:44 2003 UTC (16 years, 2 months ago) by manus
Original Path: trunk/Src/bench/Eiffel/eiffel/genericity/cl_type_i.e
File size: 13991 byte(s)
Use `twin' instead of `clone' which is now made obsolete.
Use `as_lower' and `as_upper' whenever appropriate instead of cloning and
  then calling `to_lower' or `to_upper'.

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 40771 Result := l_class_c.external_class_name.twin
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 manus 40771 Result := internal_il_type_name (l_class_c.name.twin, a_prefix)
122 manus 34253 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 julieng 37663 create 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 manus 28618
174 grator 18 associated_class_type: CLASS_TYPE is
175     -- Associated class type
176 michaels 7681 require
177 manus 16188 -- has: has_associated_class_type
178 grator 485 do
179 manus 26913 if is_true_expanded then
180     is_true_expanded := False
181 manus 32282 Result := base_class.types.search_item (Current)
182 manus 26913 is_true_expanded := True
183 xavierl 4623 elseif is_separate then
184 manus 11065 is_separate := False
185 manus 32282 Result := base_class.types.search_item (Current)
186 manus 11065 is_separate := True
187 grator 485 else
188 manus 32282 Result := base_class.types.search_item (Current)
189 manus 9655 end
190     end
191 grator 18
192     type_id: INTEGER is
193     -- Type id of the correponding class type
194     do
195 manus 9655 Result := associated_class_type.type_id
196     end
197 grator 18
198 manus 26913 sk_value: INTEGER is
199     -- Generate SK value associated to the current type.
200 grator 18 do
201 xavierl 4623 -- FIXME????: separate
202 manus 26913 if not is_true_expanded then
203 manus 31263 Result := Sk_ref | (type_id - 1)
204 grator 18 else
205 manus 26913 is_true_expanded := False
206 manus 31263 Result := Sk_exp | (type_id - 1)
207 manus 26913 is_true_expanded := True
208 manus 9655 end
209     end
210 grator 18
211 manus 26913 cecil_value: INTEGER is
212     do
213     -- FIXME????: separate
214     if not is_true_expanded then
215     Result := Sk_dtype
216     else
217 manus 31263 Result := Sk_exp | class_id
218 manus 26913 end
219     end
220    
221 grator 18 hash_code: INTEGER is
222     -- Hash code for current type
223     do
224 manus 30293 Result := Other_code + class_id
225 manus 9655 end
226 grator 18
227 manus 26913 feature -- Status
228    
229 manus 31541 element_type: INTEGER_8 is
230     -- Void element type
231     do
232 manus 31580 if is_expanded and base_class.is_external then
233     -- We only support expanded for external class at the moment.
234 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_valuetype
235     else
236 manus 37130 if class_id = System.system_string_class.compiled_class.class_id then
237 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_string
238 manus 37130 elseif class_id = System.system_object_id then
239 manus 31541 Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_object
240     else
241     Result := feature {MD_SIGNATURE_CONSTANTS}.Element_type_class
242     end
243     end
244     end
245    
246 manus 26913 is_true_expanded: BOOLEAN
247     -- Is the type expanded?
248    
249     is_separate: BOOLEAN
250     -- Is the type separate?
251    
252     is_enum: BOOLEAN is
253     -- Is current type an IL enum type?
254     -- Useful to find out if some call optimization can be done
255     -- in FEATURE_B.
256     require
257     il_generation: System.il_generation
258 grator 18 do
259 manus 26913 Result := is_true_expanded and then base_class.is_enum
260     end
261    
262 manus 28380 is_external: BOOLEAN is
263     -- Is current type an IL enum type?
264     -- Useful to find out if some call optimization can be done
265     -- in FEATURE_B.
266     do
267     Result := base_class.is_external
268     end
269    
270 manus 26913 is_valid: BOOLEAN is
271 manus 35544 -- Is the base class still in the system and matches its specification?
272 manus 26913 do
273 manus 35544 Result := base_class /= Void and then (base_class.generics = Void)
274 manus 26913 end
275    
276     is_reference: BOOLEAN is
277     -- Is the type a reference type ?
278     do
279     Result := not is_true_expanded
280     end;
281    
282     is_explicit: BOOLEAN is
283 manus 39713 -- Is Current type fixed at compile time?
284 manus 26913 do
285 manus 39713 if cr_info /= Void then
286     Result := cr_info.is_explicit
287     else
288     Result := True
289     end
290 manus 26913 end
291    
292     has_associated_class_type: BOOLEAN is
293     -- Has `Current' an associated class type?
294     do
295     if is_true_expanded then
296     is_true_expanded := False
297     Result := base_class.types.has_type (Current)
298     is_true_expanded := True
299     elseif is_separate then
300     is_separate := False
301     Result := base_class.types.has_type (Current)
302     is_separate := True
303 grator 18 else
304 manus 26913 Result := base_class.types.has_type (Current)
305 manus 9655 end
306     end
307 grator 18
308 manus 26913 same_as (other: TYPE_I): BOOLEAN is
309     -- Is `other' equal to Current ?
310     local
311     other_cl_type: CL_TYPE_I
312 grator 508 do
313 manus 26913 other_cl_type ?= other
314     Result := other_cl_type /= Void -- FIXME
315 manus 30293 and then other_cl_type.class_id = class_id
316 manus 26913 and then other_cl_type.is_true_expanded = is_true_expanded
317     and then other_cl_type.is_separate = is_separate
318     and then other_cl_type.meta_generic = Void
319     and then other_cl_type.true_generics = Void
320     end
321    
322     feature -- Setting
323    
324     set_is_true_expanded (b: BOOLEAN) is
325     -- Assign `b' to `is_true_expanded'.
326     do
327     is_true_expanded := b
328 manus 35178 ensure
329     is_true_expanded_set: is_true_expanded = b
330 manus 26913 end
331    
332     set_is_separate (b: BOOLEAN) is
333     -- Assign `b' to `is_separate'.
334     do
335     is_separate := b
336 manus 35178 ensure
337     is_separate_set: is_separate = b
338 manus 26913 end
339    
340     set_cr_info (cinfo : CREATE_INFO) is
341     -- Set `cr_info' to `cinfo'.
342 manus 30224 require
343     create_info_not_void: cinfo /= Void
344 manus 26913 do
345     cr_info := cinfo
346     ensure
347     cr_info_set : cr_info = cinfo
348     end
349    
350     feature -- Formatting
351    
352     append_signature (st: STRUCTURED_TEXT) is
353     do
354     if is_true_expanded then
355     st.add_string ("expanded ")
356     elseif is_separate then
357     st.add_string ("separate ")
358     end
359     base_class.append_signature (st)
360     end
361    
362     dump (buffer: GENERATION_BUFFER) is
363     do
364 manus 30169 buffer.putstring (debug_output)
365 manus 26913 end
366    
367     feature -- C generation
368    
369 manus 35665 generate_expanded_creation (byte_code: BYTE_CODE; reg: REGISTRABLE; workbench_mode: BOOLEAN) is
370     -- Generate creation of expanded object associated to Current.
371     local
372     gen_type: GEN_TYPE_I
373     written_class: CLASS_C
374     class_type, written_type: CLASS_TYPE
375     creation_feature: FEATURE_I
376     c_name: STRING
377     buffer: GENERATION_BUFFER
378     do
379     buffer := byte_code.buffer
380    
381     gen_type ?= Current
382    
383     if gen_type /= Void then
384     byte_code.generate_block_open
385     byte_code.generate_gen_type_conversion (gen_type)
386     end
387     reg.print_register
388     if workbench_mode then
389     -- RTLX is a macro used to create
390     -- expanded types
391     if gen_type /= Void then
392     buffer.putstring (" = RTLX(typres")
393     else
394     buffer.putstring (" = RTLX(RTUD(")
395     buffer.generate_type_id (associated_class_type.static_type_id)
396     buffer.putchar (')')
397     end
398     else
399     if gen_type /= Void then
400     buffer.putstring (" = RTLN(typres")
401     else
402     buffer.putstring (" = RTLN(")
403     buffer.putint (type_id - 1)
404     end
405     class_type := associated_class_type
406     creation_feature := class_type.associated_class.creation_feature
407     if creation_feature /= Void then
408     written_class := System.class_of_id (creation_feature.written_in)
409     if written_class.generics = Void then
410     written_type := written_class.types.first
411     else
412     written_type :=
413     written_class.meta_type (class_type.type).associated_class_type
414     end
415     c_name := Encoder.feature_name (written_type.static_type_id,
416     creation_feature.body_index)
417 manus 35702 buffer.putstring (");")
418     buffer.new_line
419 manus 35665 buffer.putstring (c_name)
420     buffer.putchar ('(')
421     reg.print_register
422     Extern_declarations.add_routine_with_signature (Void_c_type,
423     c_name, <<"EIF_REFERENCE">>)
424     end
425     end
426     buffer.putchar (')')
427     buffer.putchar (';')
428    
429     if gen_type /= Void then
430     byte_code.generate_block_close
431     end
432     buffer.new_line
433     end
434    
435 manus 26913 generate_cecil_value (buffer: GENERATION_BUFFER) is
436     -- Generate cecil value
437     do
438 xavierl 4623 -- FIXME????: separate
439 manus 26913 if not is_true_expanded then
440     buffer.putstring ("SK_DTYPE")
441 grator 508 else
442 manus 26913 buffer.putstring ("SK_EXP + (uint32) ")
443 manus 34563 buffer.putint (associated_class_type.type_id - 1)
444 manus 9655 end
445     end
446 grator 508
447 grator 930 feature -- Array optimization
448    
449     conforms_to_array: BOOLEAN is
450     do
451     Result := base_class.conform_to (array_class_c)
452 manus 9655 end
453 grator 930
454     feature {NONE} -- Array optimization
455    
456     array_class_c: CLASS_C is
457     once
458     Result := System.array_class.compiled_class
459 manus 9655 end
460 grator 930
461 manus 10818 feature -- Generic conformance
462    
463     generated_id (final_mode : BOOLEAN) : INTEGER is
464 manus 11298
465 manus 10818 do
466 manus 11298 if final_mode then
467     Result := type_id - 1
468 manus 10818 else
469 manus 26913 Result := associated_class_type.static_type_id-1
470 manus 10818 end
471 manus 11298
472 manus 26913 if is_true_expanded then
473     Result := Expanded_level - Result
474 manus 11298 end
475 manus 10818 end
476    
477 manus 11599 generate_cid (buffer : GENERATION_BUFFER; final_mode, use_info : BOOLEAN) is
478 manus 11298
479 manus 10818 do
480 manus 11209 if
481     use_info and then (cr_info /= Void)
482 manus 26913 and then not is_expanded
483 manus 11209 then
484     -- It's an anchored type
485 manus 11599 cr_info.generate_cid (buffer, final_mode)
486 manus 39412 else
487     buffer.putint (generated_id (final_mode))
488     buffer.putstring (", ")
489 manus 10890 end
490 manus 10818 end
491    
492 manus 10890 make_gen_type_byte_code (ba : BYTE_ARRAY; use_info : BOOLEAN) is
493 manus 10818 do
494 manus 11209 if
495     use_info and then (cr_info /= Void)
496 manus 26913 and then not is_expanded
497 manus 11209 then
498     -- It's an anchored type
499 manus 10890 cr_info.make_gen_type_byte_code (ba)
500 manus 39412 else
501     ba.append_short_integer (generated_id (False))
502 manus 10890 end
503 manus 10818 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 manus 39412 -- It's an anchored type
515 manus 14013 cr_info.generate_cid_array (buffer, final_mode, idx_cnt)
516 manus 39412 else
517     buffer.putint (generated_id (final_mode))
518     buffer.putstring (", ")
519    
520     -- Increment counter
521     dummy := idx_cnt.next
522 manus 14013 end
523     end
524    
525     generate_cid_init (buffer : GENERATION_BUFFER;
526     final_mode, use_info : BOOLEAN; idx_cnt : COUNTER) is
527     local
528     dummy : INTEGER
529     do
530     if
531     use_info and then (cr_info /= Void)
532 manus 26913 and then not is_expanded
533 manus 14013 then
534     -- It's an anchored type
535     cr_info.generate_cid_init (buffer, final_mode, idx_cnt)
536 manus 39412 else
537     dummy := idx_cnt.next
538 manus 14013 end
539     end
540 manus 30169
541     feature -- Generic conformance for IL
542    
543     generate_gen_type_il (il_generator: IL_CODE_GENERATOR; use_info : BOOLEAN) is
544     -- `use_info' is true iff we generate code for a
545     -- creation instruction.
546     do
547     if use_info and then cr_info /= Void then
548 manus 30582 -- It's an anchored type, we call feature
549     -- that will tell us the real type of the
550     -- anchor in the context of Current.
551     cr_info.generate_il_type
552     else
553     il_generator.generate_class_type_instance (Current)
554 manus 30169 end
555     end
556    
557     feature -- Output
558    
559     debug_output: STRING is
560     -- String that should be displayed in debugger to represent `Current'.
561     do
562     create Result.make (32)
563     if is_true_expanded then
564     Result.append ("expanded ")
565     elseif is_separate then
566     Result.append ("separate ")
567     end
568     Result.append (base_class.name_in_upper)
569     end
570 manus 33952
571     feature {NONE} -- Implementation
572    
573     internal_il_type_name (a_base_name, a_prefix: STRING): STRING is
574     -- Full type name of `a_base_name' using `a_prefix' in IL code generation
575     -- with namespace specification
576     require
577     a_base_name_not_void: a_base_name /= Void
578     local
579     l_name: STRING
580     do
581     Result := a_base_name
582     l_name := base_class.lace_class.actual_namespace
583     if a_prefix /= Void then
584     if l_name.is_empty then
585     l_name := a_prefix + "."
586     else
587 manus 34253 l_name := il_casing.namespace_casing (System.dotnet_naming_convention,
588     l_name) + "." + a_prefix + "."
589 manus 33952 end
590     else
591     if not l_name.is_empty then
592 manus 34253 l_name := il_casing.namespace_casing (System.dotnet_naming_convention,
593     l_name) + "."
594 manus 33952 end
595     end
596 manus 34253 Result := l_name + il_casing.pascal_casing (System.dotnet_naming_convention,
597     Result, feature {IL_CASING_CONVERSION}.upper_case)
598 manus 33952 ensure
599     internal_il_type_name_not_void: Result /= Void
600     internal_il_type_name_not_empty: not Result.is_empty
601     end
602    
603 grator 18 end

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