convertDynamics.icl 31.2 KB
Newer Older
1
/*
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
2
	module owner: Ronny Wichers Schreur
3
*/
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
4
5
implementation module convertDynamics

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
6
7
8
import syntax, transform, utilities, convertcases, compilerSwitches
// import RWSDebug

9
from type_io_common import PredefinedModuleName
10
// Optional
11
extended_unify_and_coerce no yes :== no;	// change also _unify and _coerce in StdDynamic
Martijn Vervoort's avatar
Martijn Vervoort committed
12

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
13
import type_io;
14
//import pp;
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
15

16
:: TypeCodeVariableInfo = TCI_TypeVar !Expression | TCI_TypePatternVar !Expression
17
18
:: DynamicValueAliasInfo :== BoundVar

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
19
::	*ConversionState =
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
20
21
22
	{	ci_predef_symb		:: !*PredefinedSymbols
	,	ci_var_heap			:: !*VarHeap
	,	ci_expr_heap		:: !*ExpressionHeap
23
	,	ci_new_variables 	:: ![FreeVar]
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
24
25

	,	ci_type_pattern_var_count	:: !Int	
26
	,	ci_type_var_count :: !Int
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
27
28
	}

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
29
30
31
32
33
34
:: DynamicRepresentation =
	{	dr_type_ident		:: SymbIdent
	,	dr_dynamic_type		:: Global Index
	,	dr_dynamic_symbol	:: Global DefinedSymbol
	}

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
35
::	ConversionInput =
36
	{	cinp_dynamic_representation	:: DynamicRepresentation
37
	,	cinp_st_args		:: ![FreeVar]
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
38
	,	cinp_subst_var		:: !BoundVar
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
39
40
	}

41
42
F :: !a .b -> .b
F a b = b
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
43

44
45
46
fatal :: {#Char} {#Char} -> .a
fatal function_name message
	=	abort ("convertDynamics, " +++ function_name +++ ": " +++ message)
47

48
write_tcl_file main_dcl_module_n dcl_mods=:{[main_dcl_module_n] = main_dcl_module} icl_common_defs tcl_file directly_imported_dcl_modules type_heaps 
49
			   predefined_symbols imported_types var_heap common_defs icl_mod
Martijn Vervoort's avatar
Martijn Vervoort committed
50
	# (pre_mod, predefined_symbols) = predefined_symbols![PD_PredefinedModule]
51
52
	# write_type_info_state2
		= { WriteTypeInfoState |
53
54
55
56
57
58
59
60
			wtis_n_type_vars				= 0
		,	wtis_predefined_module_def		= pre_mod.pds_module
		,	wtis_common_defs				= common_defs
		,	wtis_type_defs					= imported_types
	  	, 	wtis_collected_conses			= []
	  	, 	wtis_type_heaps					= type_heaps
	  	, 	wtis_var_heap					= var_heap
	  	, 	wtis_main_dcl_module_n			= main_dcl_module_n
61
		};
62

63
64
	# (j,tcl_file)
		= fposition tcl_file
65

66
	#! (tcl_file,write_type_info_state)
67
68
		= write_type_info icl_common_defs tcl_file write_type_info_state2

69
70
	#! (tcl_file,write_type_info_state)
		= write_type_info directly_imported_dcl_modules tcl_file write_type_info_state
71
72
73

	// dynamic pattern matches
	#! (tcl_file,write_type_info_state)
74
75
76
77
78
		= write_type_info no_type_symb_ident tcl_file write_type_info_state
		with
			no_type_symb_ident :: [TypeSymbIdent]
			no_type_symb_ident
				=	[]
Martijn Vervoort's avatar
Martijn Vervoort committed
79
80
81
82
83
84

	#! (tcl_file,write_type_info_state)
		= write_type_info (help_20_compiler { dcl_name.id_name\\ {dcl_name} <-: dcl_mods }) tcl_file write_type_info_state
			with 
				help_20_compiler :: {#{#Char}} -> {#{#Char}}
				help_20_compiler l = l
85
		
86
		 
Martijn Vervoort's avatar
Martijn Vervoort committed
87
88
	#! tcl_file
		= fwritei (size main_dcl_module.dcl_common.com_type_defs) tcl_file
Martijn Vervoort's avatar
Martijn Vervoort committed
89
	#! tcl_file
90
91
92
93
	 	= fwritei (size main_dcl_module.dcl_common.com_cons_defs) tcl_file
	 
	#! (type_heaps,imported_types,var_heap)
		= f write_type_info_state;	
Martijn Vervoort's avatar
Martijn Vervoort committed
94
				
95
	= (True,tcl_file,type_heaps,predefined_symbols,imported_types,var_heap) 
96
where
97
98
	f write_type_info_state=:{wtis_type_heaps,wtis_type_defs,wtis_var_heap}
		= (wtis_type_heaps,wtis_type_defs,wtis_var_heap)
99

Martijn Vervoort's avatar
Martijn Vervoort committed
100
101
102
103
/*2.0
f (Yes tcl_file)
	= tcl_file;
0.2*/
104
			
105
convertDynamicPatternsIntoUnifyAppls :: !{# CommonDefs} !Int !*{! Group} !*{#FunDef} !*PredefinedSymbols !*VarHeap !*TypeHeaps !*ExpressionHeap (Optional *File) {# DclModule} !IclModule [String]
John van Groningen's avatar
John van Groningen committed
106
			-> (!*{! Group}, !*{#FunDef}, !*PredefinedSymbols, !*{#{# CheckedTypeDef}}, !ImportedConstructors, !*VarHeap, !*TypeHeaps, !*ExpressionHeap, (Optional *File))
107
convertDynamicPatternsIntoUnifyAppls common_defs main_dcl_module_n groups fun_defs predefined_symbols var_heap type_heaps expr_heap tcl_file dcl_mods icl_mod directly_imported_dcl_modules
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
108
109
110
	#! (dynamic_representation,predefined_symbols)
		=	create_dynamic_and_selector_idents common_defs predefined_symbols

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
111
	#! nr_of_funs = size fun_defs
112
	# imported_types = {com_type_defs \\ {com_type_defs} <-: common_defs }
113
114
	# (groups, (fun_defs, {ci_predef_symb, ci_var_heap, ci_expr_heap}))
			= convert_groups 0 groups dynamic_representation (fun_defs, {	
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
115
							ci_predef_symb = predefined_symbols, ci_var_heap = var_heap, ci_expr_heap = expr_heap,
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
116
							ci_new_variables = [],
117
							ci_type_var_count = 0,
118
							ci_type_pattern_var_count = 0
119
120
121
							})
			
	// store type info			
122
	# (tcl_file,type_heaps,ci_predef_symb,imported_types,ci_var_heap)
123
124
		= case tcl_file of
			No
125
				-> (No,type_heaps,ci_predef_symb,imported_types,ci_var_heap)
126
127
			_ 
				# tcl_file = f tcl_file;
128
				# (ok,tcl_file,type_heaps,ci_predef_symb,imported_types,ci_var_heap)
129
					= write_tcl_file main_dcl_module_n dcl_mods icl_mod.icl_common tcl_file directly_imported_dcl_modules type_heaps ci_predef_symb 
130
									 imported_types ci_var_heap common_defs icl_mod
131
132
				| not ok
					-> abort "convertDynamicPatternsIntoUnifyAppls: error writing tcl file"
133
					-> (Yes tcl_file,type_heaps,ci_predef_symb,imported_types,ci_var_heap)
134

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
135
	= (groups, fun_defs, ci_predef_symb, imported_types, [], ci_var_heap, type_heaps, ci_expr_heap, tcl_file)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
136
where
137
	convert_groups group_nr groups dynamic_representation fun_defs_and_ci
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
138
139
		| group_nr == size groups
			= (groups, fun_defs_and_ci)
140
			# (group, groups) = groups![group_nr]
141
			= convert_groups (inc group_nr) groups dynamic_representation (foldSt (convert_function group_nr dynamic_representation) group.group_members fun_defs_and_ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
142

143
	convert_function group_nr dynamic_representation fun (fun_defs, ci)
Sjaak Smetsers's avatar
bug fix    
Sjaak Smetsers committed
144
145
146
147
		# (fun_def, fun_defs) = fun_defs![fun]
		  {fun_body, fun_type, fun_info} = fun_def
		| isEmpty fun_info.fi_dynamics
			= (fun_defs, ci)
148
			
149
150
151
152
			// For each function which uses dynamics, a module id is constructed regardless
			// of its use. In some very specific cases, the let generated here is superfluous.
			# (TransformedBody fun_body=:{tb_rhs})
				= fun_body
153
			# fun_body
154
155
156
				= {fun_body & tb_rhs = tb_rhs}
			# fun_body
				= TransformedBody fun_body
157
			
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
158
159
160
			# (unify_subst_var, ci)
			  	=	newVariable "unify_subst" VI_Empty ci
			# ci
161
				= {ci & ci_type_pattern_var_count = 0, ci_type_var_count = 0}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
162
163
164
165

			# (fun_body, ci) = convertDynamics {cinp_st_args = [], cinp_dynamic_representation = dynamic_representation,
					cinp_subst_var = unify_subst_var} fun_body ci

Sjaak Smetsers's avatar
bug fix    
Sjaak Smetsers committed
166
167
			= ({fun_defs & [fun] = { fun_def & fun_body = fun_body, fun_info = { fun_info & fi_local_vars = ci.ci_new_variables ++ fun_info.fi_local_vars }}},
				{ ci & ci_new_variables = [] })
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192

class convertDynamics a :: !ConversionInput !a !*ConversionState -> (!a, !*ConversionState)

instance convertDynamics [a] | convertDynamics a where
	convertDynamics cinp xs ci
		=	mapSt (convertDynamics cinp) xs ci

instance convertDynamics (Optional a) | convertDynamics a where
	convertDynamics cinp (Yes x) ci
		# (x, ci)
			=	convertDynamics cinp x ci
		=	(Yes x, ci)
	convertDynamics _ No ci
		=	(No, ci)

instance convertDynamics FunctionBody where
	convertDynamics cinp (TransformedBody body) ci
		# (body, ci)
			=	convertDynamics cinp body ci
		=	(TransformedBody body, ci)

instance convertDynamics TransformedBody where
	convertDynamics cinp body=:{tb_args,tb_rhs} ci=:{ci_var_heap}
		// this actually marks all arguments as type terms (also the regular arguments
		// and dictionaries)
193
194
//		# ci_var_heap
//			=	foldSt mark_var tb_args ci_var_heap
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
195
196
197
198
199
200
201
202
		# (tb_rhs, ci)
			=	convertDynamics cinp tb_rhs {ci & ci_var_heap = ci_var_heap}
		# (global_tpvs, subst, ci)
			=	foldSt collect_global_type_pattern_var tb_args ([], cinp.cinp_subst_var, ci)
		# (tb_rhs, ci)
			=	share_init_subst subst global_tpvs tb_rhs ci
		=	({body & tb_rhs = tb_rhs}, ci)
		where
203
204
205
//			mark_var :: FreeVar *VarHeap -> *VarHeap
//			mark_var {fv_info_ptr} var_heap
//				=	writePtr fv_info_ptr (VI_TypeCodeVariable TCI_TypeTerm) var_heap
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
206
207
208
209
210
211
212
213

			collect_global_type_pattern_var :: FreeVar ([LetBind], BoundVar, *ConversionState) -> ([LetBind], BoundVar, *ConversionState)
			collect_global_type_pattern_var {fv_info_ptr} (l, subst, ci)
				# (var_info, ci_var_heap)
					=	readPtr fv_info_ptr ci.ci_var_heap
				# ci
					=	{ci & ci_var_heap = ci_var_heap}
				=	case var_info of
214
						VI_TypeCodeVariable (TCI_TypePatternVar tpv)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
215
216
217
							# (bind_global_tpv_symb, ci) 
								=	getSymbol PD_Dyn_bind_global_type_pattern_var SK_Function 3 ci
							# type_code
218
								=	{var_ident = a_ij_var_name, var_info_ptr = fv_info_ptr, var_expr_ptr = nilPtr}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
							# (unify_subst_var, ci)
							  	=	newVariable "gtpv_subst" VI_Empty ci
							  unify_subst_fv
							  	=	varToFreeVar unify_subst_var 1
							# let_bind
								= { lb_src = App {	app_symb		= bind_global_tpv_symb,
													app_args 		= [tpv, Var type_code, Var unify_subst_var],
													app_info_ptr	= nilPtr }
								,	lb_dst =  varToFreeVar subst 1
								,	lb_position = NoPos
								}
							->	([let_bind:l], unify_subst_var, ci)
						_
							->	(l, subst, ci)

			share_init_subst :: BoundVar [LetBind] Expression *ConversionState
					-> (Expression, *ConversionState)
236
			share_init_subst subst global_tpv_binds rhs ci=:{ci_type_pattern_var_count, ci_type_var_count}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
237
				#  (initial_unifier_symb, ci) 
238
					=	getSymbol PD_Dyn_initial_unification_environment SK_Function 2 ci
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
239
240
241

				# let_bind_initial_subst
					= { lb_src = App {	app_symb		= initial_unifier_symb,
242
243
										app_args 		=
												[	BasicExpr (BVInt ci_type_pattern_var_count)
244
												,	BasicExpr (BVInt ci_type_var_count)
245
												],
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
246
247
248
249
										app_info_ptr	= nilPtr }
					,	lb_dst =  varToFreeVar subst 1
					,	lb_position = NoPos
					}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
250

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
				# let_binds
					=	[let_bind_initial_subst : global_tpv_binds]
				# (let_info_ptr,  ci)	= let_ptr (length let_binds) ci
				# ci
					= { ci & 
						ci_new_variables	= [lb_dst  \\ {lb_dst} <- let_binds] ++ ci.ci_new_variables
					}
				# rhs
					= Let {	let_strict_binds	= [],
							let_lazy_binds		= let_binds,
							let_expr			= rhs,
							let_info_ptr		= let_info_ptr,
							let_expr_position	= NoPos
					}
				=	(rhs, ci)

instance convertDynamics LetBind where
	convertDynamics cinp binding=:{lb_src} ci
		# (lb_src, ci)
			=	convertDynamics cinp lb_src ci
		=	({binding &  lb_src = lb_src}, ci)

instance convertDynamics (Bind a b) | convertDynamics a where
	convertDynamics cinp binding=:{bind_src} ci
		# (bind_src, ci)
			=	convertDynamics cinp bind_src ci
		=	({binding &  bind_src = bind_src}, ci)

instance convertDynamics Expression where
	convertDynamics cinp (TypeCodeExpression tce) ci
281
		# (dyn_type_code, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
282
			=	convertExprTypeCode cinp tce ci
283
		=	(dyn_type_code, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
	convertDynamics cinp (Var var) ci
		# (info, ci_var_heap)
			=	readPtr var.var_info_ptr ci.ci_var_heap
		# ci
			=	{ci & ci_var_heap = ci_var_heap}
		=	case (info, ci) of
				(VI_DynamicValueAlias value_var, ci)
					->	(Var value_var, ci)
				(_, ci)
					->	(Var var, ci)
	convertDynamics cinp (App app) ci
		# (app, ci)
			= convertDynamics cinp app ci
		=	(App app, ci)
	convertDynamics cinp (expr @ exprs) ci
		# (expr, ci)
			=	convertDynamics cinp expr  ci
		  (exprs, ci)
		  	=	convertDynamics cinp exprs ci
		=	(expr @ exprs, ci)
	convertDynamics cinp (Let letje) ci
		# (letje, ci)
			=	convertDynamics cinp letje  ci
		=	(Let letje, ci)
	convertDynamics cinp (Case kees) ci
		# (kees,  ci)
			=	convertDynamics cinp kees  ci
		=	(Case kees, ci)
	convertDynamics cinp (Selection opt_symb expression selections) ci
		# (expression,ci)
			=	convertDynamics cinp expression ci
		# (selections,ci)
			=	convertDynamics cinp selections ci
		=	(Selection opt_symb expression selections, ci)
	convertDynamics cinp (Update expression1 selections expression2) ci
		# (expression1, ci)
			=	convertDynamics cinp expression1 ci
		# (selections, ci)
			=	convertDynamics cinp selections ci
		# (expression2, ci)
			=	convertDynamics cinp expression2 ci
		=	(Update expression1 selections expression2, ci)
	convertDynamics cinp (RecordUpdate cons_symbol expression expressions) ci
		# (expression, ci)
			=	convertDynamics cinp expression ci
		# (expressions, ci)
			=	convertDynamics cinp expressions ci
		=	(RecordUpdate cons_symbol expression expressions, ci)
	convertDynamics cinp (TupleSelect definedSymbol int expression) ci
		# (expression, ci)
			=	convertDynamics cinp expression ci
		=	(TupleSelect definedSymbol int expression, ci)
	convertDynamics _ be=:(BasicExpr _) ci
		=	(be, ci)
	convertDynamics _ code_expr=:(AnyCodeExpr _ _ _) ci
		=	(code_expr, ci)
	convertDynamics _ code_expr=:(ABCCodeExpr _ _) ci
		=	(code_expr, ci)
	convertDynamics cinp (MatchExpr symb expression) ci
		# (expression, ci)
			=	convertDynamics cinp expression ci
		=	(MatchExpr symb expression, ci)
	convertDynamics cinp (DynamicExpr dyno) ci
		=	convertDynamic cinp dyno ci
	convertDynamics cinp EE ci
		=	(EE, ci)
	convertDynamics cinp expr=:(NoBind _) ci
		=	(expr,ci)

instance convertDynamics App where
	convertDynamics cinp app=:{app_args} ci
		# (app_args,ci)
			=	convertDynamics cinp app_args ci
		=	({app & app_args = app_args}, ci)

instance convertDynamics Let where
	convertDynamics cinp letje=:{let_strict_binds, let_lazy_binds,
											let_expr, let_info_ptr} ci
		# (let_strict_binds, ci)
		  	=	convertDynamics cinp let_strict_binds ci
		  (let_lazy_binds, ci)
		  	=	convertDynamics cinp let_lazy_binds ci
		  (let_expr,  ci)
		   	=	convertDynamics cinp let_expr  ci
		  letje
		  	=	{ letje &  let_strict_binds = let_strict_binds,
		  			let_lazy_binds = let_lazy_binds, let_expr = let_expr}
		= (letje, ci)

instance convertDynamics Case where
	convertDynamics cinp kees=:{case_expr, case_guards, case_default} ci
		# (case_expr, ci)
			=	convertDynamics cinp case_expr ci
		# (case_default, ci)
			=	convertDynamics cinp case_default ci
		# kees
			=	{kees & case_expr=case_expr, case_default=case_default}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
381
		= case case_guards of
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
382
383
			DynamicPatterns alts
				->	convertDynamicCase cinp kees ci
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
384
			_
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
				# (case_guards, ci)
					=	convertDynamics cinp case_guards ci
				# kees
					=	{kees & case_explicit=False, case_guards=case_guards}
				->	(kees, ci)

instance convertDynamics CasePatterns where
	convertDynamics cinp (BasicPatterns type alts) ci
		# (alts, ci)
			=	convertDynamics cinp alts ci
		=	(BasicPatterns type alts, ci)
	convertDynamics cinp (AlgebraicPatterns type alts) ci
		# (alts, ci)
			=	convertDynamics cinp alts ci
		=	(AlgebraicPatterns type alts, ci)
	convertDynamics cinp (OverloadedListPatterns type decons alts) ci
		# (alts, ci)
			=	convertDynamics cinp alts ci
		=	(OverloadedListPatterns type decons alts, ci)

convertDynamic cinp=:{cinp_dynamic_representation={dr_type_ident}}
					{dyn_expr, dyn_type_code} ci
	# (dyn_expr, ci)
		=	convertDynamics cinp dyn_expr ci
	# (dyn_type_code, ci)
		=	convertExprTypeCode cinp dyn_type_code ci
	=	(App {	app_symb		= dr_type_ident,
412
				app_args 		= [dyn_expr, dyn_type_code],
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
				app_info_ptr	= nilPtr }, ci)
convertDynamicCase cinp=:{cinp_dynamic_representation={dr_dynamic_symbol, dr_dynamic_type}}
			kees=:{case_guards=DynamicPatterns alts, case_info_ptr, case_default} ci
	# (value_var, ci)
		=	newVariable "value" VI_Empty ci
	# (type_var, ci)
		=	newVariable "type" VI_Empty ci
	# ci
		=	{ci & ci_new_variables	= [varToFreeVar value_var 1, varToFreeVar type_var 1 : ci.ci_new_variables ]}

	# (result_type, ci)
		=	getResultType case_info_ptr ci
	# (matches, ci)
		=	case convertDynamicAlts cinp kees type_var value_var result_type case_default alts ci of
				(Yes matches, ci) -> (matches, ci)
				_ -> abort "where are those converted dynamics?"
	# match =
		{	ap_symbol	= dr_dynamic_symbol
		,	ap_vars		= [varToFreeVar value_var 1, varToFreeVar type_var 1]
		,	ap_expr		= matches
		,	ap_position	= position alts
		}
	# (case_info_ptr, ci)
		=	dummy_case_ptr result_type ci
	# kees
		=	{kees & case_explicit=False, case_guards=AlgebraicPatterns dr_dynamic_type [match],
								case_default=No, case_info_ptr = case_info_ptr}
	=	(kees, ci)

convertDynamicAlts _ _ _ _ _ defoult [] ci
	=	(defoult, ci)
convertDynamicAlts cinp kees type_var value_var result_type defoult [{dp_rhs, dp_position, dp_type_code, dp_var}:alts] ci
	# (type_code, binds, ci)
		=	convertPatternTypeCode cinp dp_type_code ci

	#  (unify_symb, ci) 
		=	getSymbol PD_Dyn_unify SK_Function (extended_unify_and_coerce 3 4) /*3 was 2 */ ci

	# unify_call
		=	App { app_symb = unify_symb,  app_args = [ Var cinp.cinp_subst_var, Var type_var, type_code],  app_info_ptr = nilPtr }

	// FIXME, more precise types (not all TEs)
	# (let_info_ptr, ci)
		=	let_ptr (/* 4 */ 3+length binds) ci

	  (unify_result_var, ci)
	  	=	newVariable "result" VI_Empty ci
	  unify_result_fv
	  	=	varToFreeVar unify_result_var 1
	  (unify_bool_var, ci)
	  	=	newVariable "unify_bool" VI_Empty ci
	  unify_bool_fv
	  	=	varToFreeVar unify_bool_var 1

	  (unify_subst_var, ci)
	  	=	newVariable "unify_subst" VI_Empty ci
	  unify_subst_fv
	  	=	varToFreeVar unify_subst_var 1

	# ci_var_heap = writePtr dp_var.fv_info_ptr (VI_DynamicValueAlias value_var) ci.ci_var_heap
	# ci = {ci & ci_var_heap = ci_var_heap}

	# (dp_rhs, ci)
		=	convertDynamics {cinp & cinp_subst_var=unify_subst_var} dp_rhs ci

	# (case_info_ptr, ci)
		=	bool_case_ptr result_type ci
	# case_guards
		=	BasicPatterns BT_Bool
				[{bp_value = BVB True, bp_expr = dp_rhs, bp_position = dp_position}]
	# (case_default, ci)
		=	convertDynamicAlts cinp
				kees type_var value_var result_type defoult alts ci

	# kees
		=	{kees & case_info_ptr=case_info_ptr, case_guards=case_guards,
						case_default=case_default, case_explicit=False, case_expr=Var unify_bool_var}
490

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
	# ci
		=	{ci & ci_new_variables	= [unify_result_fv, unify_bool_fv, unify_subst_fv : ci.ci_new_variables ]}

	  (twotuple, ci)
	  	=	getTupleSymbol 2 ci

	  letje
		=	{	let_strict_binds = [{ lb_src =  unify_call,
		  							   lb_dst = unify_result_fv, lb_position = NoPos },
		  							{ lb_src =  TupleSelect twotuple 0 (Var unify_result_var),
		  							   lb_dst = unify_bool_fv, lb_position = NoPos }]
		  	,	let_lazy_binds = [ // { lb_src = Var value_var, lb_dst = dp_var, lb_position = NoPos },
		  	{ lb_src = TupleSelect twotuple 1 (Var unify_result_var),
		  							   lb_dst = unify_subst_fv, lb_position = NoPos }] ++ binds
			,	let_info_ptr = let_info_ptr
			,	let_expr = Case kees
			,	let_expr_position = NoPos // FIXME, add correct position
			} 

	=	(Yes (Let letje), ci)


class position a :: a -> Position

instance position [a] | position a where
	position []
		=	NoPos
	position [h:_]
		=	position h

instance position DynamicPattern where
	position {dp_position}
		=	dp_position

instance convertDynamics BasicPattern where
	convertDynamics cinp alt=:{bp_expr} ci
		# (bp_expr, ci)
			=	convertDynamics cinp bp_expr ci
		= ({alt & bp_expr=bp_expr}, ci)

instance convertDynamics AlgebraicPattern where
	convertDynamics cinp alt=:{ap_expr} ci
		# (ap_expr, ci)
			=	convertDynamics cinp ap_expr ci
		=	({alt & ap_expr=ap_expr}, ci)

instance convertDynamics Selection where
	convertDynamics cinp selection=:(RecordSelection _ _) ci
		=	(selection, ci)
	convertDynamics cinp (ArraySelection selector expr_ptr expr) ci
		# (expr, ci)
			=	convertDynamics cinp expr ci
		=	(ArraySelection selector expr_ptr expr, ci)
	convertDynamics cinp (DictionarySelection var selectors expr_ptr expr) ci
		# (expr, ci)
			=	convertDynamics cinp expr ci
		=	(DictionarySelection var selectors expr_ptr expr, ci)

convertExprTypeCode
	::	!ConversionInput !TypeCodeExpression !*ConversionState
	->	(!Expression, !*ConversionState)
convertExprTypeCode cinp tce ci
553
554
	# (type_code, (has_var, binds, ci))
		=	convertTypeCode False cinp tce (False, [], ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
555
556
557
558
	// sanity check ...
	| not (isEmpty binds)
		=	abort "unexpected binds in expression type code"
	// ... sanity check	
559
560
561
562
563
564
565
566
567
	| has_var
		# (normalise_symb, ci) 
			=	getSymbol PD_Dyn_normalise SK_Function 2 ci
		# type_code
			=	App { app_symb = normalise_symb,
					app_args = [ Var cinp.cinp_subst_var, type_code],  app_info_ptr = nilPtr }
		=	(type_code, ci)
	// otherwise
		=	(type_code, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
568
569
570
571

convertPatternTypeCode :: !ConversionInput !TypeCodeExpression !*ConversionState
										-> (!Expression, ![LetBind], !*ConversionState)
convertPatternTypeCode cinp tce ci
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
572
	# (type_code, (_, binds, ci))
573
574
		=	convertTypeCode True cinp tce (False, [], ci)
	=	(type_code, binds, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
575

576
577
578
convertTypeCode :: !Bool !ConversionInput !TypeCodeExpression (!Bool, ![LetBind], !*ConversionState)
										-> (!Expression, (!Bool, ![LetBind], !*ConversionState))
convertTypeCode pattern _ (TCE_Var var_info_ptr) (has_var, binds, ci=:{ci_var_heap})
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
579
580
581
582
583
	# (var_info, ci_var_heap)
		=	readPtr var_info_ptr ci_var_heap
	  ci
	  	=	{ci & ci_var_heap = ci_var_heap}
	=	case var_info of
584
585
586
587
			VI_TypeCodeVariable (TCI_TypeVar tv)
				->	(tv, (has_var, binds, ci))
			VI_TypeCodeVariable (TCI_TypePatternVar tpv)
				->	(tpv, (True, binds, ci))
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
588
589
590
591
592
			_
				# (expr, ci)
					=	createTypePatternVariable ci
				# ci
					=	{ci & ci_var_heap
593
594
595
						=	writePtr var_info_ptr (VI_TypeCodeVariable (TCI_TypePatternVar expr)) ci.ci_var_heap}
				->	(expr, (True, binds, ci))
convertTypeCode pattern _ (TCE_TypeTerm var_info_ptr) (has_var, binds, ci=:{ci_var_heap})
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
596
597
598
599
600
	# (var_info, ci_var_heap)
		=	readPtr var_info_ptr ci_var_heap
	  ci
	  	=	{ci & ci_var_heap = ci_var_heap}
	=	case var_info of
601
602
603
604
605
606
607
608
609
610
611
612
613
			VI_TypeCodeVariable (TCI_TypeVar tv)
				->	(tv, (has_var, binds, ci))
			VI_TypeCodeVariable (TCI_TypePatternVar tpv)
				->	(tpv, (True, binds, ci))
			_
				# (expr, ci)
					=	createTypePatternVariable ci
				# ci
					=	{ci & ci_var_heap
						=	writePtr var_info_ptr (VI_TypeCodeVariable (TCI_TypePatternVar expr)) ci.ci_var_heap}
				->	(expr, (True, binds, ci))

convertTypeCode pattern cinp (TCE_App t arg) (has_var, binds, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
614
615
	# (typeapp_symb, ci)
		=	getSymbol PD_Dyn_TypeApp SK_Constructor 2 ci
616
617
618
619
	# (typecode_t, st)
	  	=	convertTypeCode pattern cinp t (has_var, binds, ci)
	# (typecode_arg, st)
	  	=	convertTypeCode pattern cinp arg st
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
620
	= (App {app_symb		= typeapp_symb,
621
622
			app_args 		= [typecode_t, typecode_arg],
			app_info_ptr	= nilPtr}, st)
623
convertTypeCode pattern cinp (TCE_Constructor cons []) (has_var, binds, ci)
624
625
626
	# (typecons_symb, ci)
		=	getSymbol PD_Dyn_TypeCons SK_Constructor 1 ci
	# (constructor, ci)
627
		=	typeConstructor cons ci
628
629
630
	= (App {app_symb		= typecons_symb,
			app_args 		= [constructor],
			app_info_ptr	= nilPtr}, (has_var, binds, ci))
631
where
632
633
634
	constructorExp :: Index ((Global Index) -> SymbKind) Int !*ConversionState
		-> (Expression, !*ConversionState)
	constructorExp index symb_kind arity ci
635
		# (cons_ident, ci)
636
			=	getSymbol index symb_kind arity ci
637
		=	(App {app_symb = cons_ident, app_args = [], app_info_ptr = nilPtr}, ci)
638
		
639
640
641
642
643
644
645
646
647
648
649
	typeConstructor (GTT_PredefTypeConstructor {glob_object=type_index}) ci
		| PD_Arity2TupleTypeIndex <= type_index && type_index <= PD_Arity32TupleTypeIndex
			# arity
				=	type_index - PD_Arity2TupleTypeIndex + 2
			# (tuple_symb, ci)
				=	getSymbol PD_Dyn_TypeCodeConstructor_Tuple SK_Function 1 ci 
			=	(App {app_symb = tuple_symb, app_args = [BasicExpr (BVInt arity)], app_info_ptr = nilPtr}, ci)
		// otherwise
			# predef_type_index
				=	type_index + FirstTypePredefinedSymbolIndex
			=	constructorExp (predefinedTypeConstructor predef_type_index) SK_Function 0 ci
650
	typeConstructor (GTT_Constructor cons_ident) ci
651
		=	(App {app_symb = cons_ident, app_args = [], app_info_ptr = nilPtr}, ci)
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
	typeConstructor (GTT_Basic basic_type) ci
		=	constructorExp (basicTypeConstructor basic_type) SK_Function 0 ci
	typeConstructor GTT_Function ci
		=	constructorExp PD_Dyn_TypeCodeConstructor_Arrow SK_Function 0 ci

	basicTypeConstructor BT_Int
		=	PD_Dyn_TypeCodeConstructorInt
	basicTypeConstructor BT_Char	
		=	PD_Dyn_TypeCodeConstructorChar
	basicTypeConstructor BT_Real	
		=	PD_Dyn_TypeCodeConstructorReal
	basicTypeConstructor BT_Bool	
		=	PD_Dyn_TypeCodeConstructorBool
	basicTypeConstructor BT_Dynamic	
		=	PD_Dyn_TypeCodeConstructorDynamic
	basicTypeConstructor BT_File	
		=	PD_Dyn_TypeCodeConstructorFile
	basicTypeConstructor BT_World	
		=	PD_Dyn_TypeCodeConstructorWorld
671
	
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
	predefinedTypeConstructor predef_type_index
		| predef_type_index == PD_ListType
			=	PD_Dyn_TypeCodeConstructor_List
		| predef_type_index == PD_StrictListType
			=	PD_Dyn_TypeCodeConstructor_StrictList
		| predef_type_index == PD_UnboxedListType
			=	PD_Dyn_TypeCodeConstructor_UnboxedList
		| predef_type_index == PD_TailStrictListType
			=	PD_Dyn_TypeCodeConstructor_TailStrictList
		| predef_type_index == PD_StrictTailStrictListType
			=	PD_Dyn_TypeCodeConstructor_StrictTailStrictList
		| predef_type_index == PD_UnboxedTailStrictListType
			=	PD_Dyn_TypeCodeConstructor_UnboxedTailStrictList
		| predef_type_index == PD_LazyArrayType
			=	PD_Dyn_TypeCodeConstructor_LazyArray
		| predef_type_index == PD_StrictArrayType
			=	PD_Dyn_TypeCodeConstructor_StrictArray
		| predef_type_index == PD_UnboxedArrayType
			=	PD_Dyn_TypeCodeConstructor_UnboxedArray
		// otherwise
			=	fatal "predefinedType" "TC code from predef"
693
convertTypeCode pattern cinp (TCE_Constructor cons args) st
694
	# curried_type
695
		=	foldl TCE_App (TCE_Constructor cons []) args
696
697
	=	convertTypeCode pattern cinp curried_type st
convertTypeCode pattern cinp (TCE_UniType uni_vars type_code) (has_var, binds, ci)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
698
		# (tv_symb, ci)
699
			=	getSymbol (if pattern PD_Dyn__TypeFixedVar PD_Dyn_TypeVar) SK_Constructor 1 ci
700
		# init_count
701
			=	if pattern ci.ci_type_var_count ci.ci_type_pattern_var_count
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
702
		# (count, ci_var_heap)
703
			=	foldSt (mark_uni_var pattern (build_tv tv_symb)) uni_vars (init_count, ci.ci_var_heap)
704
		# ci
705
706
707
708
			=	{	ci
				&	ci_type_var_count = if pattern count ci.ci_type_var_count
				,	ci_type_pattern_var_count = if pattern ci.ci_type_pattern_var_count count
				,	ci_var_heap = ci_var_heap}
709
710
		# (type_code, (has_var, binds, ci))
	  		=	convertTypeCode pattern cinp type_code (has_var, binds, ci)
711
	  	| count > init_count
712
713
714
			# (type_scheme_sym, ci)
				=	getSymbol PD_Dyn_TypeScheme SK_Constructor 2 ci
			=	(App {	app_symb = type_scheme_sym,
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
715
716
							app_args = [BasicExpr (BVInt (count - init_count)), type_code],
							app_info_ptr = nilPtr }, (has_var || init_count <> 0, binds, ci))
717
718
719
720
721
722
		// otherwise
			=	(type_code, (has_var, binds, ci))

		where
			mark_uni_var :: Bool (Int -> Expression) VarInfoPtr (Int, *VarHeap) -> (Int, *VarHeap)
			mark_uni_var pattern build_var_code var_info_ptr (count, var_heap)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
723
724
				# var_info
					=	VI_TypeCodeVariable (TCI_TypeVar (build_var_code count))
725
				=	(count + (if pattern -1 1), writePtr var_info_ptr var_info var_heap)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
726
727
728
729
730
731

			build_tv :: SymbIdent Int -> Expression
			build_tv tv_symb number
				=	App {	app_symb = tv_symb,
							app_args = [BasicExpr (BVInt number)],
							app_info_ptr = nilPtr }
732
733
734
735
736
737
738
739
convertTypeCode pattern cinp (TCE_UnqType type) (has_var, binds, ci)
	# (typeunique_symb, ci)
		=	getSymbol PD_Dyn_TypeUnique SK_Constructor 1 ci
	# (type, (has_var, binds, ci))
		=	convertTypeCode pattern cinp type (has_var, binds, ci)
	= (App {app_symb		= typeunique_symb,
			app_args 		= [type],
			app_info_ptr	= nilPtr}, (has_var, binds, ci))
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
740

741
742
743
744
convertTypeCode pattern cinp (TCE_Selector selections var_info_ptr) st
	# (var, st)		
		=	convertTypeCode pattern cinp (TCE_Var var_info_ptr) st
	=	(Selection NormalSelector var selections, st)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
745
746
747
748

createTypePatternVariable :: !*ConversionState -> (!Expression, !*ConversionState)
createTypePatternVariable ci
	# (tpv_symb, ci)
749
750
//		=	getSymbol PD_Dyn_TypePatternVar SK_Constructor 1 ci
		=	getSymbol PD_Dyn_TypeVar SK_Constructor 1 ci
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
751
752
753
754
	=	(App {	app_symb = tpv_symb,
						app_args = [BasicExpr (BVInt ci.ci_type_pattern_var_count)],
						app_info_ptr = nilPtr },
		{ci & ci_type_pattern_var_count = ci.ci_type_pattern_var_count + 1})
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
755
756
757

/**************************************************************************************************/

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
758
newVariable :: String !VarInfo !*ConversionState -> *(!BoundVar,!*ConversionState)
759
newVariable var_ident var_info ci=:{ci_var_heap}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
760
	# (var_info_ptr, ci_var_heap) = newPtr var_info ci_var_heap
761
	= ( { var_ident = {id_name = var_ident, id_info = nilPtr},  var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr},
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
762
763
764
	    { ci & ci_var_heap = ci_var_heap })	

varToFreeVar :: BoundVar Int -> FreeVar
765
766
varToFreeVar {var_ident, var_info_ptr} count
	= {fv_def_level = NotALevel, fv_ident = var_ident, fv_info_ptr = var_info_ptr, fv_count = count}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
767
768

freeVarToVar ::  FreeVar -> BoundVar
769
770
freeVarToVar {fv_ident, fv_info_ptr}
	= { var_ident = fv_ident,  var_info_ptr = fv_info_ptr, var_expr_ptr = nilPtr}
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
771
772


Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
773
getResultType :: ExprInfoPtr !*ConversionState -> (!AType, !*ConversionState)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
774
775
776
777
getResultType case_info_ptr ci=:{ci_expr_heap}
	# (EI_CaseType {ct_result_type}, ci_expr_heap) = readPtr case_info_ptr ci_expr_heap
	= (ct_result_type, {ci & ci_expr_heap = ci_expr_heap})

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
778
getSymbol :: Index ((Global Index) -> SymbKind) Int !*ConversionState -> (SymbIdent, !*ConversionState)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
779
getSymbol index symb_kind arity ci=:{ci_predef_symb}
780
781
	# ({pds_module, pds_def}, ci_predef_symb) = ci_predef_symb![index]
	# pds_ident = predefined_idents.[index]
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
782
	  ci = {ci & ci_predef_symb = ci_predef_symb}
783
	  symbol = { symb_ident = pds_ident, symb_kind = symb_kind { glob_module = pds_module, glob_object = pds_def} }
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
784
785
786
	= (symbol, ci)

getTupleSymbol arity ci=:{ci_predef_symb}
787
788
	# ({pds_def}, ci_predef_symb) = ci_predef_symb![GetTupleConsIndex arity]
	# pds_ident = predefined_idents.[GetTupleConsIndex arity]
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
789
790
791
    = ( {ds_ident = pds_ident, ds_arity = arity, ds_index = pds_def}, {ci & ci_predef_symb = ci_predef_symb })

a_ij_var_name :== { id_name = "a_ij", id_info = nilPtr }
Martijn Vervoort's avatar
Martijn Vervoort committed
792

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
793
bool_case_ptr :: !AType !*ConversionState -> (ExprInfoPtr, !*ConversionState)
794
bool_case_ptr result_type ci=:{ci_expr_heap}
795
	# (expr_info_ptr, ci_expr_heap) = newPtr (EI_CaseType {	ct_pattern_type = toAType (TB BT_Bool),
796
															ct_result_type = result_type, //empty_attributed_type,
797
798
799
															ct_cons_types = [[toAType (TB BT_Bool)]]}) ci_expr_heap
	= (expr_info_ptr, {ci &  ci_expr_heap = ci_expr_heap})

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
800
801
dummy_case_ptr :: !AType !*ConversionState -> (ExprInfoPtr, !*ConversionState)
dummy_case_ptr result_type ci=:{ci_expr_heap}
802
	# (expr_info_ptr, ci_expr_heap) = newPtr (EI_CaseType {	ct_pattern_type = toAType TE,
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
803
804
805
806
															ct_result_type = result_type, //empty_attributed_type,
															ct_cons_types = [[empty_attributed_type, empty_attributed_type]]}) ci_expr_heap
	= (expr_info_ptr, {ci &  ci_expr_heap = ci_expr_heap})

807

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
808
let_ptr :: !Int !*ConversionState -> (ExprInfoPtr, !*ConversionState)
809
let_ptr nr_of_binds ci=:{ci_expr_heap}
810
811
	= let_ptr2 (repeatn nr_of_binds empty_attributed_type) ci

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
812
813
814
typed_let_ptr :: TypeSymbIdent !*ConversionState -> (ExprInfoPtr, !*ConversionState)
typed_let_ptr type_id ci=:{ci_expr_heap}
	= let_ptr2 [toAType (TA type_id [])] ci
815

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
816
let_ptr2 :: [AType] !*ConversionState -> (ExprInfoPtr, !*ConversionState)
817
818
let_ptr2 let_types ci=:{ci_expr_heap}
	# (expr_info_ptr, ci_expr_heap) = newPtr (EI_LetType let_types) ci_expr_heap
819
820
821
	= (expr_info_ptr, {ci &  ci_expr_heap = ci_expr_heap})

toAType :: Type -> AType
822
toAType type = { at_attribute = TA_Multi, at_type = type }
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
823
824

empty_attributed_type :: AType
825
empty_attributed_type = toAType TE
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
826

827
instance <<< (Ptr a)
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
828
829
830
where
	(<<<) file ptr = file <<< ptrToInt ptr  

Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847

create_dynamic_and_selector_idents common_defs predefined_symbols 
	| predefined_symbols.[PD_StdDynamic].pds_module == NoIndex
		=	({	dr_type_ident		= undef
			,	dr_dynamic_type		= undef
			,	dr_dynamic_symbol	= undef
			},predefined_symbols)
	// otherwise	
		# ({pds_module=pds_module1, pds_def=pds_def1} , predefined_symbols) = predefined_symbols![PD_Dyn_DynamicTemp]
		# {td_rhs=RecordType {rt_constructor,rt_fields}} = common_defs.[pds_module1].com_type_defs.[pds_def1]
	
		# dynamic_defined_symbol
			= {glob_module = pds_module1, glob_object = rt_constructor}
		# dynamic_type = {glob_module = pds_module1, glob_object = pds_def1}

		# dynamic_temp_symb_ident
			= { SymbIdent |
848
				symb_ident	= rt_constructor.ds_ident
Ronny Wichers Schreur's avatar
Ronny Wichers Schreur committed
849
850
851
852
853
854
855
			,	symb_kind 	= SK_Constructor {glob_module = pds_module1, glob_object = rt_constructor.ds_index} 
			}
		= ({	dr_type_ident		= dynamic_temp_symb_ident
			,	dr_dynamic_type		= dynamic_type
			,	dr_dynamic_symbol	= dynamic_defined_symbol
			}, predefined_symbols)