1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
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
281
282
283
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
381
382
383
384
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
412
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
490
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
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369 | ------------------------------------------------------------------------------
-- --
-- GNAT2XML COMPONENTS --
-- --
-- G N A T 2 X M L . A D A _ T R E E S --
-- --
-- B o d y --
-- --
-- Copyright (C) 2012-2019, AdaCore --
-- --
-- Gnat2xml is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 2, or (at your option) any later --
-- version. Gnat2xml is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General --
-- Public License for more details. You should have received a copy of the --
-- GNU General Public License distributed with GNAT; see file COPYING. If --
-- not, write to the Free Software Foundation, 59 Temple Place Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- The gnat2xml tool was derived from the Avatox sources. --
------------------------------------------------------------------------------
pragma Ada_2012;
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Exceptions;
with Ada.Wide_Text_IO;
with Unchecked_Deallocation;
with System.WCh_Con;
use type System.WCh_Con.WC_Encoding_Method;
with GNAT.OS_Lib;
with Snames;
with Types;
use type Types.Int;
with ASIS_UL.Generic_Formatted_Output;
with ASIS_UL.Output; use ASIS_UL;
with ASIS_UL.Common;
with Pp.Formatting.Dictionaries;
with Ada_Trees.Self_Rep;
separate (Ada_Trees.Formatting)
procedure Tree_To_Ada
(Root : Ada_Tree;
Src_Buf : in out Buffer;
Write_BOM : Boolean;
Source_Name : String;
Options : Formatting_Options;
Output_Name : String;
Form_String : String;
Do_Diff : Boolean;
Output_Written : out Boolean)
is
pragma Warnings (Off); -- ????
-- Miscellaneous useful Name_Ids:
Name_Empty : constant Name_Id := Name_Find ("");
Name_Semicolon : constant Name_Id := Name_Find (";");
Name_L_Paren : constant Name_Id := Name_Find ("(");
Name_R_Paren : constant Name_Id := Name_Find (")");
Name_Colon : constant Name_Id := Name_Find (":");
Name_Assign : constant Name_Id := Name_Find (":=");
Name_Bang : constant Name_Id := Name_Find ("!");
Name_Bar : constant Name_Id := Name_Find ("|");
Name_Arrow : constant Name_Id := Name_Find ("=>");
Name_Dot : constant Name_Id := Name_Find (".");
Name_And_Then : constant Name_Id := Name_Find ("and then");
Name_Or_Else : constant Name_Id := Name_Find ("or else");
Name_Q_And : constant Name_Id := Name_Find ("""and""");
Name_Q_Or : constant Name_Id := Name_Find ("""or""");
Name_Q_Xor : constant Name_Id := Name_Find ("""xor""");
Name_Q_Mod : constant Name_Id := Name_Find ("""mod""");
Name_Q_Rem : constant Name_Id := Name_Find ("""rem""");
Name_Q_Abs : constant Name_Id := Name_Find ("""abs""");
Name_Q_Not : constant Name_Id := Name_Find ("""not""");
Name_Depends : constant Name_Id := Name_Find ("Depends");
Name_Refined_Depends : constant Name_Id := Name_Find ("Refined_Depends");
Name_Tab_Insertion_Point : constant Name_Id :=
Name_Find ("tab insertion point");
Name_Tab_In_Out : constant Name_Id := Name_Find ("tab in out");
Name_Dot_Dot : constant Name_Id := Name_Find ("..");
Name_R_Sq : constant Name_Id := Name_Find ("]");
Op_Sym_Table : constant array (Positive range <>) of Name_Id :=
(Name_Q_And,
Name_Q_Or,
Name_Q_Xor,
Name_Q_Mod,
Name_Q_Rem,
Name_Q_Abs,
Name_Q_Not);
function Is_Op_Sym_With_Letters
(N : Name_Id)
return Boolean is
(for some Op of Op_Sym_Table => N = Op);
-- True if N looks like a string literal that can be used as an operator
-- symbol containing letters, so case might matter. N should be in all
-- lower case.
pragma Warnings (On);
procedure Put_To_Buffer (C : W_Char);
-- Append C to Buffer
procedure Init_Template_Table;
-- We call this to initialize Template_Table the first time Tree_To_Ada
-- is called, so that we can base the initialization in part on the
-- command-line options.
procedure Init_Pp_Off_And_On;
-- Initialize Pp_Off_On_Delimiters from Options
procedure Assert_No_Trailing_Blanks (S : W_Str);
-- Assert that there are no lines with trailing blanks in S.
function Id_With_Casing
(Id : Name_Id;
Kind : Opt_ASIS_Elems;
Is_Predef : Boolean;
Use_Name_Casing_For_Nils : Boolean := False)
return W_Str;
-- This handles casing of defining names and usage names, converting to
-- the appropriate case based on command-line options. Kind is the kind of
-- declaration denoted by Id, or an attribute, or nil. Is_Predef is True if
-- Id denotes a predefined Ada or GNAT identifier.
--
-- This is called early (during Subtree_To_Ada). Casing of reserved words
-- is handled later, in a separate pass (see Keyword_Casing), because they
-- are not explicit in the tree, except that operator symbols are handled
-- here. All of the Ada_Templates have reserved words in lower case.
--
-- Id_With_Casing is used for Def_Names, Usage_Names and pragmas. For
-- Def_Names, the Kind comes from the Symbol_Table, which only works
-- because it's within one unit. That doesn't work for Usage_Names; we
-- use the Decl_Kind attribute, which includes declared entities and
-- attributes. For pragmas, we use the Kind of the pragma node.
--
-- Is_Predef comes from the Is_Predef attribute of Usage_Names. It is
-- always False for Def_Names and pragmas.
--
-- Use_Name_Casing_For_Nils is documented in Do_Usage_Name.
procedure Put_To_Buffer (C : W_Char) is
begin
pragma Assert
(if
Check_Whitespace and then Options.Par_Specs_Threshold = Natural'Last
then
(if C = ' ' then Lookback (Out_Buf) /= ' '));
-- No double blanks. Except that there is one special case when the
-- Par_Specs_Threshold switch is used, where we have an extra blank
-- (see Subp_Decl_With_Hard_Breaks).
pragma Assert (if C = NL then Lookback (Out_Buf) /= ' ');
-- no trailing blanks
Append_Any (Out_Buf, C);
end Put_To_Buffer;
Name_CPP_Class : aliased constant W_Str := "CPP_Class";
Name_CPP_Constructor : aliased constant W_Str := "CPP_Constructor";
Name_CPP_Virtual : aliased constant W_Str := "CPP_Virtual";
Name_CPP_Vtable : aliased constant W_Str := "CPP_Vtable ";
Name_CPU : aliased constant W_Str := "CPU";
Name_Persistent_BSS : aliased constant W_Str := "Persistent_BSS";
Name_SPARK_Mode : aliased constant W_Str := "SPARK_Mode";
Name_Use_VADS_Size : aliased constant W_Str := "Use_VADS_Size";
Name_VADS_Size : aliased constant W_Str := "VADS_size";
Special_Case_Names : constant
array (Positive range <>) of access constant W_Str :=
(Name_CPP_Class'Access,
Name_CPP_Constructor'Access,
Name_CPP_Virtual'Access,
Name_CPP_Vtable 'Access,
Name_CPU'Access,
Name_Persistent_BSS'Access,
Name_SPARK_Mode'Access,
Name_Use_VADS_Size'Access,
Name_VADS_Size'Access);
function Id_With_Casing
(Id : Name_Id;
Kind : Opt_ASIS_Elems;
Is_Predef : Boolean;
Use_Name_Casing_For_Nils : Boolean := False)
return W_Str
is
Str : W_Str := Get_Name_String (Id);
-- This is the name as declared
pragma Assert (Str'First = 1);
-- If it's a character literal, we want As_Declared -- it would be
-- unfortunate to turn 'a' into 'A'. Operators go by keyword casing.
-- Operator symbols (quoted) do so also, which seems wrong, but we're
-- going to mimic the old gnatpp for now. Note that some reserved
-- words can be an operator or an attribute name; hence the check
-- for Flat_Attribute_Reference_Kinds below. Predefined names use
-- As_Declared unless Use_Predefined_Casing is turned off. For
-- everything else, we use the appropriate option based on the Kind.
Casing : constant PP_Casing :=
(if Str (1) = ''' then As_Declared
elsif
Kind not in Flat_Attribute_Reference_Kinds
and then
(Str (1) = '"' -- operator symbol
or else Snames.Is_Keyword_Name (Id)
or else Id = Name_And_Then
or else Id = Name_Or_Else)
then
Options.PP_Keyword_Casing
elsif
Is_Predef and then Options.Use_Predefined_Casing
then
As_Declared
else
(case Kind is
when Flat_Attribute_Reference_Kinds =>
Options.PP_Attribute_Casing,
when Flat_Pragma_Kinds => Options.PP_Pragma_Casing,
when An_Enumeration_Literal_Specification =>
Options.PP_Enum_Literal_Casing,
when A_Flat_Type_Declaration |
A_Subtype_Declaration |
A_Formal_Type_Declaration |
A_Formal_Incomplete_Type_Declaration |
A_Task_Body_Declaration |
A_Protected_Body_Declaration =>
Options.PP_Type_Casing,
when A_Flat_Number_Declaration => Options.PP_Nnumbers_Casing,
when Not_An_Element =>
(if
Options.Is_PP
and then not Use_Name_Casing_For_Nils
and then Options.PP_Name_Casing = As_Declared
then
Mixed
else Options.PP_Name_Casing),
when others => Options.PP_Name_Casing));
-- The Not_An_Element case is for identifiers specific to pragmas
-- and the like. But that only works if the Decl_Kind field is set,
-- which isn't true in xml2gnat, so we use PP_Name_Casing (which is
-- As_Declared) in that case.
use Pp.Formatting.Dictionaries;
begin
if Options.Use_Dictionary then
Check_With_Dictionary (Ada_Name => Str, Casing => Casing);
return Str;
else
case Casing is
when Lower_Case =>
return To_Lower (Str);
when Upper_Case =>
return To_Upper (Str);
when Mixed =>
if Kind in Flat_Attribute_Reference_Kinds | Flat_Pragma_Kinds
then
-- Handle pragma and attribute names that are special cases
-- (some portion should be in ALL CAPS).
declare
Lower : constant W_Str := To_Lower (Str);
begin
for Special of Special_Case_Names loop
if Lower = To_Lower (Special.all) then
return Special.all;
end if;
end loop;
end;
end if;
return Capitalize (Str);
when As_Declared =>
return Str;
end case;
end if;
end Id_With_Casing;
package Buffered_Output is new ASIS_UL.Generic_Formatted_Output
(W_Char,
W_Str,
Basic_Put_Char => Put_To_Buffer);
procedure Indent (Amount : Integer);
procedure Indent (Amount : Integer) is
pragma Assert
(abs (Amount) in
0 |
1 |
Options.PP_Indentation |
Options.PP_Cont_Line_Indentation);
Line_Breaks : Line_Break_Vector renames All_Line_Breaks;
begin
Cur_Indentation := Cur_Indentation + Amount;
if abs (Amount) = Options.PP_Indentation then
pragma Assert (Point (Out_Buf) = Last_Position (Out_Buf) + 1);
if Last_Position (Out_Buf) =
Position (Out_Buf, Line_Breaks (Last (Line_Breaks)).Mark)
then
-- pragma Assert (At_Point (Out_Buf, Line_Breaks (Last (Line_Breaks)).Mark));
Line_Breaks (Last (Line_Breaks)).Indentation := Cur_Indentation;
end if;
end if;
end Indent;
procedure Append_Line_Break
(Hard : Boolean;
Affects_Comments : Boolean;
Level : Nesting_Level;
Kind : Ada_Tree_Kind;
Template : Name_Id);
function Max_Nesting_Increment (Temp : Ada_Template) return Nesting_Level;
-- If a digit occurs after '@', this is an additional "nesting increment"
-- to be added to the nesting level when we recursively process the
-- subtree. This is intended to allow some line breaks to have precedence
-- over others. If no such digit occurs, the default is zero. This function
-- returns the maximum such nesting increment in the template.
function New_Level
(Tree : Ada_Tree;
Subtree_Index : Query_Index;
Cur_Level : Nesting_Level;
Temp : Ada_Template)
return Nesting_Level;
-- Compute a new nesting level for a subtree. This is usually one more than
-- the current level, but we also add in Max_Nesting_Increment.
procedure If_Statement_Check_1;
procedure If_Statement_Check_2 (Level_Of_If : Nesting_Level);
-- The above are for a special check related to if_statements, which comes
-- in two parts. If_Statement_Check_1 and _2 are called before and after
-- calling Subtree_To_Ada on the condition of an 'if'.
--
-- The compiler style checks complain if "then" appears by itself on the
-- line immediately following "if" (still true???), as in:
-- if <condition>
-- then
-- where <condition> is just long enough to split the line before "then",
-- but not long enough to be split itself. To avoid that, we make sure
-- at least one line break in <condition> is at the same level as the one
-- just before "then", thus ensuring that if the latter is enabled, some
-- line break within <condition> will also be enabled. The same goes for
-- "elsif".
--
-- Part _1 remembers the index of the first line break for the condition.
-- Then the condition is walked, possibly inserting some line breaks. Part
-- _2 then finds the minimum nested level (i.e. outermost), and patches
-- that to equal the level of the 'if'. If there are no line breaks in the
-- condition, but it is still long enough to force the "then" onto the next
-- line, then there's not much we can do -- the style check will fail in
-- that unlikely case.
procedure Append_Line_Break
(Hard : Boolean;
Affects_Comments : Boolean;
Level : Nesting_Level;
Kind : Ada_Tree_Kind;
Template : Name_Id)
is
pragma Unreferenced (Kind);
Line_Breaks : Line_Break_Vector renames All_Line_Breaks;
begin
-- If we see two line breaks in a row, we take the least indented one.
if Hard and then Lookback (Out_Buf) = NL then
if Line_Breaks (Last_Index (Line_Breaks)).Indentation >
Cur_Indentation
then
Line_Breaks (Last_Index (Line_Breaks)).Indentation :=
Cur_Indentation;
end if;
if not Options.Insert_Blank_Lines then
return;
end if;
end if;
Append
(Line_Breaks,
Line_Break'
(Mark => Mark (Out_Buf, Name => (if Hard then '$' else '@')),
Hard => Hard,
Affects_Comments => Affects_Comments,
Enabled => Hard,
Level => Level,
Indentation => Cur_Indentation,
Length => <>,
-- Kind => Kind,
Template => Template,
UID => Next_Line_Break_Unique_Id));
Next_Line_Break_Unique_Id := Next_Line_Break_Unique_Id + 1;
-- A hard line break gets NL
if Hard then
Buffered_Output.Put_Char (NL);
end if;
end Append_Line_Break;
function Max_Nesting_Increment (Temp : Ada_Template) return Nesting_Level is
J : Positive := Temp'First;
C : W_Char;
begin
return Result : Nesting_Level := 0 do
while J <= Temp'Last loop
C := Temp (J);
case C is
when '@' =>
declare
Digit : W_Char;
Increment : Nesting_Level;
begin
if J < Temp'Last and then Temp (J + 1) in '0' .. '9' then
J := J + 1;
Digit := Temp (J);
Increment := Nesting_Level (Char_To_Digit (Digit));
else
Increment := 0;
end if;
Result := Nesting_Level'Max (Result, Increment);
end;
when others =>
null;
end case;
J := J + 1;
end loop;
end return;
end Max_Nesting_Increment;
function New_Level
(Tree : Ada_Tree;
Subtree_Index : Query_Index;
Cur_Level : Nesting_Level;
Temp : Ada_Template)
return Nesting_Level
is
begin
pragma Assert
(if Tree.Kind in An_If_Path | An_Elsif_Path then Subtree_Index = 1);
return Cur_Level + Max_Nesting_Increment (Temp) + 1;
end New_Level;
First_If_Line_Break : Line_Break_Index;
-- Valid only between calls to If_Statement_Check_1 and
-- If_Statement_Check_2. Set by _1 to 1 past the end of the table, which
-- is where the next line break will be placed. Used by _2 to find the
-- first line break (if any) belonging to the condition.
procedure If_Statement_Check_1 is
Line_Breaks : Line_Break_Vector renames All_Line_Breaks;
begin
First_If_Line_Break := Last_Index (Line_Breaks) + 1;
end If_Statement_Check_1;
procedure If_Statement_Check_2 (Level_Of_If : Nesting_Level) is
Line_Breaks : Line_Break_Vector renames All_Line_Breaks;
Min : Nesting_Level := Nesting_Level'Last;
begin
-- Find the minimum level:
for J in First_If_Line_Break .. Last_Index (Line_Breaks) loop
Min := Nesting_Level'Min (Min, Line_Breaks (J).Level);
end loop;
-- Overwrite all line breaks at the minimum level to the level of the
-- 'if':
for J in First_If_Line_Break .. Last_Index (Line_Breaks) loop
if Line_Breaks (J).Level = Min then
Line_Breaks (J).Level := Level_Of_If;
end if;
end loop;
end If_Statement_Check_2;
function Remove_Extra_Line_Breaks return Char_Vector;
-- Removes extra NL's. The result has exactly one NL at the beginning, and
-- exactly one at the end. Also, if Preserve_Blank_Lines is False, we
-- collapse 3 or more NL's in a row down to 2. ???It would be cleaner if
-- we didn't put multiple blank lines in in the first place.
--
-- This also converts LF to CRLF if appropriate.
-- Wide_Text_IO accepts a Form parameter that inserts CR's on windows, but
-- it doesn't do that on unix, so we insert CR's by hand.
function Remove_Extra_Line_Breaks return Char_Vector is
Is_Windows : constant Boolean := GNAT.OS_Lib.Directory_Separator = '\';
Add_CR : constant Boolean :=
(case Output.Out_File_Format is
when Output.Default => (if Is_Windows then True else False),
when Output.CRLF => True,
when Output.LF => False);
-- True if we should convert LF to CRLF -- if it was requested on the
-- command line, or if we're on windows an nothing was requested.
begin
-- Optimize the case where we're not changing anything. The reason
-- Remove_Extra_Line_Breaks keeps the initial NL is that this
-- optimization wouldn't work otherwise.
if Options.Preserve_Blank_Lines and then not Add_CR then
return To_Vector (Out_Buf);
end if;
declare
Result : Char_Vector;
begin
while Cur (Out_Buf) = NL loop
Move_Forward (Out_Buf);
end loop;
Append (Result, W_LF);
-- We don't want a CR here; caller skips the one LF character
loop
declare
NL_Count : Natural := 0;
begin
while Cur (Out_Buf) = NL loop
Move_Forward (Out_Buf);
NL_Count := NL_Count + 1;
end loop;
exit when At_End (Out_Buf);
if not Options.Preserve_Blank_Lines and then NL_Count > 2 then
NL_Count := 2;
end if;
for J in 1 .. NL_Count loop
if Add_CR then
Append (Result, W_CR);
end if;
Append (Result, W_LF);
end loop;
end;
pragma Assert (Cur (Out_Buf) /= NL);
Append (Result, Cur (Out_Buf));
Move_Forward (Out_Buf);
end loop;
if Add_CR then
Append (Result, W_CR);
end if;
Append (Result, W_LF);
Reset (Out_Buf);
pragma Assert (Result (1) = NL);
pragma Assert (Result (2) /= NL);
if not Add_CR then
pragma Assert (Result (Last_Index (Result) - 1) /= NL);
pragma Assert (Result (Last_Index (Result)) = NL);
end if;
return Result;
end;
end Remove_Extra_Line_Breaks;
procedure Write_Str (Out_Elems : W_Str);
procedure Write_Out_Buf (Out_Vec : Char_Vector);
procedure Write_Src_Buf;
-- Write_Out_Buf writes Out_Buf to the output. This is the normal
-- case. Write_Src_Buf writes the Src_Buf to the output. Write_Str is the
-- code common to both Write_Out_Buf and Write_Src_Buf.
procedure Write_Str (Out_Elems : W_Str) is
use Wide_Text_IO;
Out_File : File_Type;
begin
-- ???
-- if False then -- ???Messes up the diff's.
-- Formatted_Output.Put
-- ("-- ???Inner_Loop_Count = \1\n",
-- Image (Inner_Loop_Count));
-- end if;
Output_Written := True;
if Output_Name /= "" then
-- If Output_Name = "", leave Current_Output pointing to standard
-- output; otherwise point it to the file.
Create (Out_File, Name => Output_Name,
Form => Form_String & ",Text_Translation=NO");
Set_Output (Out_File);
end if;
-- If a BOM (byte order mark) was found in the input, we want to put it
-- in the output.
if Write_BOM then
if Options.Output_Encoding /= System.WCh_Con.WCEM_UTF8 then
raise Program_Error;
end if;
Put (W_Char'Val (16#FEFF#)); -- BOM as a wide character
end if;
-- We must call New_Line for LF's (at least for the last one in the
-- Out_Elems), because otherwise Wide_Text_IO adds an annoying blank
-- line to the end of the file. It would probably be better to avoid
-- Wide_Text_IO altogether, but we're currently using it to do Unicode
-- encoding transformations. Note that Put(CR) is not guaranteed to work
-- by the Ada standard, but the GNAT implementation won't molest it.
for C of Out_Elems loop
if C = W_LF then
New_Line;
else
Put (C);
end if;
end loop;
if Output_Name /= "" then
Close (Out_File);
Set_Output (Ada.Wide_Text_IO.Standard_Output);
end if;
end Write_Str;
procedure Write_Out_Buf (Out_Vec : Char_Vector) is
pragma Assert (Point (Out_Buf) = 1);
Out_Elems : W_Str renames Elems (Out_Vec)
(2 .. Last_Index (Out_Vec)); -- 2 to skip initial NL
begin
-- In Do_Diff mode, don't write the output if it is identical to the
-- input.
if Do_Diff then
declare
Src_Elems : W_Str renames Elements (Src_Buf)
(1 .. Last_Position (Src_Buf));
begin
if Out_Elems = Src_Elems then
Output_Written := False;
return;
end if;
end;
end if;
Write_Str (Out_Elems);
end Write_Out_Buf;
procedure Write_Src_Buf is
Out_Elems : W_Str renames Elements (Src_Buf)
(1 .. Last_Position (Src_Buf));
begin
Write_Str (Out_Elems);
end Write_Src_Buf;
procedure Subtree_To_Ada
(Tree : Ada_Tree;
Cur_Level : Nesting_Level;
Index_In_Parent : Query_Index);
-- We recursively walk the tree, and for most nodes, take the template
-- from Template_Table, and pass it to Interpret_Template. Some nodes
-- need special casing, and bypass the Template_Table. Subtree_To_Ada is
-- directly recursive, and also mutually recursive with Interpret_Template.
procedure Convert_Tree_To_Ada (Tree : Ada_Tree);
-- Subtree_To_Ada with initial values for Cur_Level and Index_In_Parent,
-- along with some fix-ups. In particular, we add a sentinel Line_Break
-- at the beginning, and a sentinel Tab at the end.
type Tree_Stack_Index is new Positive;
type Tree_Array is array (Tree_Stack_Index range <>) of Ada_Tree;
package Tree_Stacks is new ASIS_UL.Vectors
(Tree_Stack_Index,
Ada_Tree,
Tree_Array);
use Tree_Stacks;
-- use all type Tree_Stacks.Vector;
Tree_Stack : Tree_Stacks.Vector;
-- Stack of trees that we're in the process of traversing. Pushed and
-- popped at the beginning and end of Subtree_To_Ada.
function Ancestor_Tree
(N : Tree_Stack_Index)
return Ada_Tree;
-- Returns the N'th ancestor of the current tree. Ancestor (0) is the
-- current tree, Ancestor (1) is the parent of the current tree, Ancestor
-- (2) is the grandparent of the current tree, and so on. Nil if the tree
-- isn't deep enough.
function Ancestor_Tree
(N : Tree_Stack_Index)
return Ada_Tree is
begin
if Last_Index (Tree_Stack) <= N then
return Nil;
else
return Tree_Stack (Last_Index (Tree_Stack) - N);
end if;
end Ancestor_Tree;
function Parent_Tree return Ada_Tree is (Ancestor_Tree (1));
Implicit_Null_Statement_Seen : Boolean := False;
-- See the comments about labels under "when A_Null_Statement =>" below for
-- an explanation of this.
function Munge_Template
(T : Ada_Template;
Kind : Ada_Tree_Kind)
return Ada_Template;
-- Modify the template in certain ways based on command-line options and
-- the like.
function Subp_Decl_With_Hard_Breaks
(Tree : Ada_Tree;
Is_Function, Is_Body : Boolean)
return Ada_Template;
-- For implementing Par_Specs_Threshold. This replaces the soft line break
-- between parameters with a hard line break. If Is_Function is True, put
-- a hard line break before "return". If Is_Body is True, put a hard line
-- break before "is".
function Munge_Template
(T : Ada_Template;
Kind : Ada_Tree_Kind)
return Ada_Template
is
begin
if not Options.RM_Style_Spacing then
return T;
end if;
declare
Result : Bounded_W_Str (Max_Length => T'Length * 2);
X : Natural := T'First;
function C return W_Char is (T (X));
function Match
(S : Ada_Template)
return Boolean is
(T (X .. Natural'Min (T'Last, X + S'Length - 1)) = S);
begin
while X <= T'Last loop
if Options.RM_Style_Spacing then
if Match (" (") or else Match (" @(") then
X := X + 1; -- skip ' ' before '('
elsif Match (" ^:") and then not Match (" ^:=") then
X := X + 1; -- skip ' ' before ':'
elsif Kind in
A_Loop_Statement |
A_While_Loop_Statement |
A_For_Loop_Statement |
A_Block_Statement
and then Match (" :")
then
X := X + 1; -- skip ' ' before ':' for statement name
end if;
end if;
Append (Result, C);
X := X + 1;
end loop;
return Ada_Template (To_String (Result));
end;
end Munge_Template;
function Subp_Decl_With_Hard_Breaks
(Tree : Ada_Tree;
Is_Function, Is_Body : Boolean)
return Ada_Template
is
T : Ada_Template renames Template_Table (Tree.Kind).all;
T1 : constant W_Str :=
(if Options.RM_Style_Spacing
then Must_Replace (W_Str (T), "[@(~;@ ~)]", "[$(~;$~)]")
else Must_Replace (W_Str (T), "[@ (~;@ ~)]", "[$(~;$~)]"));
T2 : constant W_Str :=
(if Is_Function
then Must_Replace (T1, "@1 return", "$ return")
else T1);
T3 : constant W_Str :=
(if Is_Body and then Options.Separate_Line_For_IS
then Must_Replace (T2, "@ is$", "$is$")
else T2);
begin
return Result : constant Ada_Template := Ada_Template (T3) do
if Assert_Enabled then
if Result = T then
Self_Rep.Stdo;
Self_Rep.Put_Ada_Tree (Tree);
Wide_Text_IO.Put_Line ("T = " & W_Str (T));
Wide_Text_IO.Put_Line ("Result = " & W_Str (Result));
end if;
pragma Assert (Result /= T);
end if;
end return;
end Subp_Decl_With_Hard_Breaks;
package Alternative_Templates is
-- Some templates that are used instead of the ones in Template_Table
Prefix_Notation_Call_Alt_Templ_1 : constant Ada_Template :=
Munge_Template (" @(", A_Function_Call);
Prefix_Notation_Call_Alt_Templ_2 : constant Ada_Template :=
Munge_Template ("[$(", A_Function_Call);
Accept_Statement_Alt_Templ : constant Ada_Template :=
Munge_Template
(Labels & "accept !? @(~~)~?[ @(~;@ ~)]~!!",
An_Accept_Statement);
-- The last "!!" generates nothing, but satisfies the requirement that
-- we use all the subtrees.
-- ???Is the following correct for multi-dim arrays (only some indices
-- need "range")?
Constrained_Array_Definition_Alt_Templ_1 : constant Ada_Template :=
Munge_Template
("array @(?range ~, range ~~) of !",
A_Constrained_Array_Definition);
Constrained_Array_Definition_Alt_Templ_2 : constant Ada_Template :=
Munge_Template
("array @(?~, ~~) of !",
A_Constrained_Array_Definition);
Pragma_Alt_Templ : constant Ada_Template :=
Munge_Template ("?[ @(~,@ ~)]~", Flat_Pragma_Kinds'First);
Parameter_Specification_Alt_Templ : constant Ada_Template :=
Munge_Template (" ^: ", A_Parameter_Specification);
Block_Statement_Alt_Templ_1 : constant Ada_Template :=
Munge_Template
(Labels & "?~~ : ~!" & Handled_Seq_2,
A_Block_Statement);
Block_Statement_Alt_Templ_2 : constant Ada_Template :=
Munge_Template
(Labels & "?~~ : ~?declare$" & "{~;$~;$$}~" & Handled_Seq_2,
A_Block_Statement);
Extended_Return_Statement_Alt_Templ : constant Ada_Template :=
Munge_Template (Labels & "return !!!", An_Extended_Return_Statement);
-- The last "!!" generates nothing, but satisfies the requirement that
-- we use all the subtrees.
end Alternative_Templates;
procedure Subtree_To_Ada
(Tree : Ada_Tree;
Cur_Level : Nesting_Level;
Index_In_Parent : Query_Index)
is
pragma Unreferenced (Index_In_Parent); -- ???Needed?
Line_Breaks : Line_Break_Vector renames All_Line_Breaks;
procedure Subtrees_To_Ada
(Tree : Ada_Tree;
Pre, Between, Post : Ada_Template);
procedure Interpret_Template
(T : Ada_Template := Template_Table (Tree.Kind).all;
Subtrees : Ada_Tree_Array := Tree.Subtrees;
Cur_Level : Nesting_Level := Subtree_To_Ada.Cur_Level;
Kind : Ada_Tree_Kind := Tree.Kind);
-- Interpret the template, printing literal characters, and recursively
-- calling Subtree_To_Ada when the template calls for a subnode. Kind is
-- for debugging.
procedure Prefix_Notation_Call (Label_Names, Callee, Actuals : Ada_Tree);
-- This is called for A_Function_Call and A_Procedure_Call_Statement
-- when the Is_Prefix_Notation subtree is True. Prefix notation calls
-- have special visibility rules, so we don't want to turn X.F(Y) into
-- F(X, Y). Label_Names is always empty for function calls.
procedure Append_Tab
(Parent, Tree : Ada_Tree_Base;
T : Ada_Template;
Token_Text : Name_Id;
Index_In_Line : Tab_Index_In_Line;
Is_Insertion_Point : Boolean);
-- Append a Tab_Rec onto Tabs. If Token is Name_Empty, get the token
-- from the template T.
--
-- Handling of "fake tabs":
-- Fake tabs are used to deal with situations like this:
--
-- A_Long_Var_Name : T := 123;
-- X : A_Long_Type_Name;
-- A_Long_Constant_Name : constant T := 123;
--
-- where we wish to align the ":" and ":=" tokens. But the
-- Insert_Alignment algorithm doesn't align things unless subsequent
-- lines "match", which includes having the same number of tabs. But X
-- has no ":=", so we add a fake tab so it will match the preceding and
-- following lines.
--
-- Append_Tab inserts a fake tab after each ":" tab. If there is no
-- ":=" following, the fake tab remains. If there IS a ":=", a real
-- tab replaces the fake one.
--
-- Fake tabs initially have the same position as the preceding ":" tab.
-- When Insert_Alignment calculates Max_Col, it ignores the fake ones,
-- so they won't push anything further to the right. It sets the Col of
-- the fake ones to Max_Col; hence Num_Blanks will be zero, so fake tabs
-- won't insert any blanks.
--
-- Context clauses are handled in a similar manner:
--
-- with Ada.Characters.Handling; use Ada.Characters.Handling;
-- with Ada.Exceptions;
-- with Ada.Strings; use Ada.Strings;
procedure Append_Tab
(Parent, Tree : Ada_Tree_Base;
T : Ada_Template;
Token_Text : Name_Id;
Index_In_Line : Tab_Index_In_Line;
Is_Insertion_Point : Boolean)
is
Text : Name_Id;
Pa : Ada_Tree_Base := Parent;
Tr : Ada_Tree_Base := Tree;
procedure Maybe_Replace_Fake_Tab;
-- Replace a fake tab with a real one, if appropriate. In particular,
-- if the last tab is fake, and the current one has the same
-- Index_In_Line, Tree, and Parent, then the current one replaces the
-- fake one.
function Tab_Token (T : Ada_Template) return Name_Id;
-- Returns the text of the token at the beginning of T, which is the
-- portion of an Ada_Template immediately following "^".
procedure Maybe_Replace_Fake_Tab is
begin
if Is_Empty (Tabs) then
return;
end if;
declare
Tb : constant Tab_Rec := Last_Element (Tabs);
begin
if Tb.Is_Fake
and then Tb.Index_In_Line = Index_In_Line
and then Tb.Tree = Tr
and then Tb.Parent = Pa
then
pragma Assert (Tb.Token = Text);
pragma Assert
((Text = Name_Assign and then Index_In_Line in 2 | 4)
or else
(Text = Snames.Name_Use and then Index_In_Line = 2));
pragma Assert (not Is_Insertion_Point);
Delete_Last (Tabs); -- replace fake tab with this real one
end if;
end;
end Maybe_Replace_Fake_Tab;
function Tab_Token (T : Ada_Template) return Name_Id is
-- There is a limited number of possibilities, and we take
-- advantage of that for efficiency. Currently, the only tokens
-- that can follow "^" in templates are as shown below. This needs
-- to be changed if we add more tabbing to templates.
Tok : Scanner.Token;
Text : Name_Id;
begin
if T = "" then
pragma Assert
(Tree.Kind in
A_Parameter_Specification | A_Formal_Object_Declaration);
Text := Name_Tab_In_Out;
else
case T (T'First) is
when ':' =>
if Has_Prefix (W_Str (T), Prefix => ":=") then
Text := Name_Assign;
else
Text := Name_Colon;
end if;
when '|' =>
Text := Name_Bar;
when '=' =>
pragma Assert (Has_Prefix (W_Str (T), Prefix => "=>"));
Text := Name_Arrow;
when 'a' =>
pragma Assert (Has_Prefix (W_Str (T), Prefix => "at"));
Text := Snames.Name_At;
when 'r' =>
pragma Assert (Has_Prefix (W_Str (T), Prefix => "range"));
Text := Snames.Name_Range;
when '.' =>
pragma Assert (Tree.Kind in A_Component_Clause);
pragma Assert (Has_Prefix (W_Str (T), Prefix => ".."));
Text := Name_Dot_Dot;
when ']' =>
pragma Assert (Tree.Kind in A_Component_Clause);
Text := Name_R_Sq;
goto Skip_Assertion; -- ']' is not a legal token
when others =>
pragma Assert (False);
end case;
if Assert_Enabled then
Tok := Scanner.Get_Token (W_Str (T));
pragma Assert (Text = Tok.Normalized);
pragma Assert (Tok.Sloc.First = 1);
end if;
<<Skip_Assertion>>
end if;
pragma Assert
(Text in
Name_Tab_In_Out |
Name_Assign |
Name_Colon |
Name_Arrow |
Name_Bar |
Snames.Name_At |
Snames.Name_Range |
Name_Dot_Dot |
Name_R_Sq);
return Text;
end Tab_Token;
-- Start of processing for Append_Tab
begin
if not Alignment_Enabled (Options) then
return;
end if;
if Tree /= null and then Tree.Kind = A_With_Clause then
if Is_Nil (Get (Tree, Has_Limited))
and then Is_Nil (Get (Tree, Has_Private))
then
Pa := null;
Tr := null;
Text := Snames.Name_With;
else
return; -- ignore "limited with" and "private with"
end if;
elsif Token_Text = Name_Empty then
if Is_Insertion_Point then
Text := Name_Tab_Insertion_Point;
else
Text := Tab_Token (T);
end if;
else
Text := Token_Text;
end if;
Maybe_Replace_Fake_Tab;
pragma Assert
(Point (Out_Buf) =
Last_Position (Out_Buf) + 1); -- ???Do we need Last_Position?
Append
(Tabs,
Tab_Rec'
(Pa,
Tr,
Token => Text,
Mark => Mark (Out_Buf, '^'),
Index_In_Line => Index_In_Line,
Col => <>,
Num_Blanks => <>,
Is_Fake => False,
Is_Insertion_Point => Is_Insertion_Point));
pragma Assert
(Position (Out_Buf, Last_Element (Tabs).Mark) =
Last_Position (Out_Buf) + 1);
-- Append a fake tab if appropriate
if Tree /= null and then not Is_Insertion_Point then
case Tree.Kind is
when A_Variable_Declaration |
A_Constant_Declaration |
An_Integer_Number_Declaration |
A_Real_Number_Declaration |
A_Discriminant_Specification |
A_Component_Declaration |
A_Return_Variable_Specification =>
if Index_In_Line = 1 then
pragma Assert (Text = Name_Colon);
Append
(Tabs,
Tab_Rec'
(Parent => Pa,
Tree => Tr,
Token => Name_Assign,
Mark => Mark (Out_Buf, '^'),
Index_In_Line => 2,
Col => <>,
Num_Blanks => <>,
Is_Fake => True,
Is_Insertion_Point => False));
end if;
when A_Parameter_Specification | A_Formal_Object_Declaration =>
if Index_In_Line = 3 then
pragma Assert (Text = Name_Tab_In_Out);
Append
(Tabs,
Tab_Rec'
(Parent => Pa,
Tree => Tr,
Token => Name_Assign,
Mark => Mark (Out_Buf, '^'),
Index_In_Line => 4,
Col => <>,
Num_Blanks => <>,
Is_Fake => True,
Is_Insertion_Point => False));
end if;
when A_With_Clause =>
if Index_In_Line = 1 then
pragma Assert (Text = Snames.Name_With);
Append
(Tabs,
Tab_Rec'
(Parent => Pa,
Tree => Tr,
Token => Snames.Name_Use,
Mark => Mark (Out_Buf, '^'),
Index_In_Line => 2,
Col => <>,
Num_Blanks => <>,
Is_Fake => True,
Is_Insertion_Point => False));
end if;
when A_Variant |
An_Aspect_Specification |
A_For_All_Quantified_Expression |
A_For_Some_Quantified_Expression |
An_Assignment_Statement |
A_Case_Path |
A_Select_Path |
An_Or_Path |
A_Case_Expression_Path |
A_Component_Clause |
An_Exception_Handler |
An_Exception_Renaming_Declaration |
An_Exception_Declaration =>
null;
when A_Pragma_Argument_Association |
A_Discriminant_Association |
A_Record_Component_Association |
An_Array_Component_Association |
A_Parameter_Association |
A_Generic_Association =>
null;
when others =>
-- No other tree kinds have tabs
pragma Assert (False);
end case;
end if;
end Append_Tab;
procedure Subtrees_To_Ada
(Tree : Ada_Tree;
Pre, Between, Post : Ada_Template)
is
procedure Check_Between;
-- Assert that Between doesn't contain any indentation or similar, so
-- we don't need special processing as for Keep_Indentation.
function Keep_Indentation (Post : Ada_Template) return Ada_Template;
-- Remove everything from Post except for indentation commands
procedure Check_Between is
begin
for X of Between loop
if X in '{' | '}' | '[' | ']' | '(' | ')' | '&' |
'!' | '?' | '~'
then
Self_Rep.Stdo;
Self_Rep.Put_Ada_Tree (Tree);
Wide_Text_IO.Put_Line
("Incorrect Between string: " & W_Str (Between));
pragma Assert (False);
end if;
end loop;
end Check_Between;
pragma Debug (Check_Between);
function Keep_Indentation (Post : Ada_Template) return Ada_Template is
Result : Bounded_W_Str (Max_Length => Post'Length);
begin
for X of Post loop
pragma Assert (X not in '(' | ')');
if X in '{' | '}' | '[' | ']' then
Append (Result, X);
end if;
end loop;
return Ada_Template (To_String (Result));
end Keep_Indentation;
pragma Assert (Tree.Kind in Flat_List_Kinds);
Prev_With : Ada_Tree_Base := null;
-- See Use_Same_Line below
begin
if Tree.Subtree_Count = 0 then
return;
end if;
Interpret_Template (Pre, Subtrees => Empty_Tree_Array);
for Index in 1 .. Tree.Subtree_Count loop
declare
Subtree : constant Ada_Tree := Tree.Subtrees (Index);
function Use_Same_Line return Boolean;
-- Special case for use_package_clauses: We want to print "with
-- A.B; use A.B;" on one line. Also, things like "with A.B; use
-- A; use A.B;". This returns True in these cases. We don't do
-- this special processing for use type clauses.
function Has_Prefix (X, Y : Ada_Tree) return Boolean with
Pre => X.Kind in Usage_Names | A_Selected_Component
and then Y.Kind in Usage_Names | A_Selected_Component;
-- True if X contains Y, as in "A.B.C.D" contains "A.B".
-- I.e. if Y is a prefix of X.
function Has_Prefix (X, Y : Ada_Tree) return Boolean is
begin
if Ref (X) = Ref (Y) then
return True;
elsif X.Kind in Usage_Names then
return False;
else
pragma Assert (X.Kind = A_Selected_Component);
return Has_Prefix (X.Subtrees (1), Y);
end if;
end Has_Prefix;
function Use_Same_Line return Boolean is
begin
-- For a with clause followed by one or more use package
-- clauses, Prev_With will be the with clause when
-- processing the use clauses. Otherwise, Prev_With is null.
if Prev_With = null
or else Options.Separate_Line_For_USE
then
return False; -- usual case
end if;
declare
pragma Assert (Prev_With.Kind = A_With_Clause);
With_Names : constant Ada_Tree := Prev_With.Subtrees (3);
Next_Subtree : constant Ada_Tree :=
Tree.Subtrees (Index + 1);
begin
if Next_Subtree.Kind = A_Use_Package_Clause
and then Next_Subtree.Subtrees (1).Subtree_Count = 1
and then With_Names.Subtree_Count = 1
then
declare
W : constant Ada_Tree := With_Names.Subtrees (1);
U : constant Ada_Tree :=
Next_Subtree.Subtrees (1).Subtrees (1);
begin
if Has_Prefix (W, U) or else Has_Prefix (U, W) then
return True;
end if;
end;
end if;
end;
return False; -- usual case
end Use_Same_Line;
begin
pragma Assert (Tree.Kind not in An_If_Path | An_Elsif_Path);
-- No need for If_Statement_Check here
Subtree_To_Ada
(Subtree,
New_Level (Tree, Index, Cur_Level, Pre & Between & Post),
Index);
-- ???Shouldn't this use the entire template?
case Subtree.Kind is
when A_With_Clause =>
if Is_Nil (Get (Subtree, Has_Limited))
and then Is_Nil (Get (Subtree, Has_Private))
then
Prev_With := Subtree;
else
-- ignore "limited with" and "private with"
Prev_With := null;
end if;
when A_Use_Package_Clause =>
null; -- Leave Prev_With alone
when others =>
Prev_With := null;
end case;
if Index < Tree.Subtree_Count then
declare
Same_Line : constant Boolean := Use_Same_Line;
pragma Assert (if Same_Line then Between = ";$");
Tween : constant Ada_Template :=
(if
Same_Line
then
(if Prev_With = Tree.Subtrees (Index) then ";@ "
else ";$")
else -- else ";@1 "???
Between);
begin
if Subtree.Kind /= A_Comment then
Interpret_Template
(Tween, Subtrees => Empty_Tree_Array);
end if;
if Same_Line then
Append_Tab
(Parent => null,
Tree => null,
T => "",
Token_Text => Snames.Name_Use,
Index_In_Line => 2,
Is_Insertion_Point => False);
end if;
end;
else
pragma Assert (Index = Tree.Subtree_Count);
if Subtree.Kind = A_Comment then
Interpret_Template
(Keep_Indentation (Post), Subtrees => Empty_Tree_Array);
else
Interpret_Template (Post, Subtrees => Empty_Tree_Array);
end if;
end if;
end;
end loop;
end Subtrees_To_Ada;
procedure Interpret_Template
(T : Ada_Template := Template_Table (Tree.Kind).all;
Subtrees : Ada_Tree_Array := Tree.Subtrees;
Cur_Level : Nesting_Level := Subtree_To_Ada.Cur_Level;
Kind : Ada_Tree_Kind := Tree.Kind)
is
pragma Assert (T = Munge_Template (T, Kind));
J : Positive := T'First;
subtype Subtrees_Index is Query_Index range 1 .. Subtrees'Last;
Used : array (Subtrees_Index) of Boolean := (others => False);
Cur_Subtree_Index : Query_Count := 0;
Numeric_Arg : Boolean;
C : W_Char;
function Debug_Template return Name_Id;
function Debug_Template return Name_Id is
begin
if False then
return W_Name_Find
("X" & W_Str (T) & "X [" & From_UTF8 (Image (J)) & "]");
else
return Name_Empty;
end if;
end Debug_Template;
Nesting_Increment : Nesting_Level;
-- Start of processing for Interpret_Template
begin
while J <= T'Last loop
Numeric_Arg := False;
C := T (J);
case C is
-- The following characters are not currently used in templates
-- (as literal text, or as the initial character of a special
-- character sequence); reserved for future use.
when '0' .. '9' |
'~' |
'#' |
'*' |
'_' |
'"' |
'\' |
'/' =>
raise Program_Error with "Illegal template character";
when '$' | '%' =>
Append_Line_Break
(Hard => True,
Affects_Comments => C = '$',
Level => Cur_Level,
Kind => Kind,
Template => Debug_Template);
when '@' =>
if J < T'Last and then T (J + 1) in '0' .. '9' then
J := J + 1;
Nesting_Increment :=
Nesting_Level (Char_To_Digit (T (J)));
else
Nesting_Increment := 0;
end if;
Append_Line_Break
(Hard => False,
Affects_Comments => False,
Level => Cur_Level + Nesting_Increment,
Kind => Kind,
Template => Debug_Template);
when '{' =>
Indent (Options.PP_Indentation);
when '}' =>
Indent (-Options.PP_Indentation);
when '[' =>
Indent (Options.PP_Cont_Line_Indentation);
when ']' =>
Indent (-Options.PP_Cont_Line_Indentation);
when '(' =>
Buffered_Output.Put_Char (C);
Indent (1); -- extra indentation
when ')' =>
Buffered_Output.Put_Char (C);
Indent (-1);
when '^' | '&' =>
declare
Index_In_Line : Tab_Index_In_Line;
Par : Ada_Tree := Parent_Tree;
begin
if J < T'Last and then T (J + 1) in '0' .. '9' then
J := J + 1;
Index_In_Line :=
Tab_Index_In_Line (Char_To_Digit (T (J)));
else
Index_In_Line := 1;
end if;
if Par = Tree then
Par := Ancestor_Tree (2); -- up one more level
end if;
Append_Tab
(Par,
Tree,
T (J + 1 .. T'Last),
Name_Empty,
Index_In_Line => Index_In_Line,
Is_Insertion_Point => C = '&');
end;
when '!' | '?' =>
if J < T'Last and then T (J + 1) in '0' .. '9' then
Numeric_Arg := True;
J := J + 1;
else
Cur_Subtree_Index := Cur_Subtree_Index + 1;
end if;
declare
Subtree_Index : Query_Index;
begin
if Numeric_Arg then
Subtree_Index := Query_Index (Char_To_Digit (T (J)));
else
Subtree_Index := Cur_Subtree_Index;
end if;
pragma Assert (Subtree_Index in Subtrees_Index);
-- Put ("Subtree_Index = \1, not in \2..\3 <<\4>>\n",
-- Image (Subtree_Index), Image (Subtrees'First), Image
-- (Subtrees'Last), "???Image (Tr.Kind)");
declare
Subtree : constant Ada_Tree :=
Subtrees (Subtree_Index);
begin
Used (Subtree_Index) := True;
if C = '!' then
if Tree.Kind in An_If_Path | An_Elsif_Path then
pragma Assert (Subtree_Index = 1);
If_Statement_Check_1;
end if;
Subtree_To_Ada
(Subtree,
New_Level (Tree, Subtree_Index, Cur_Level, T),
Subtree_Index);
if Tree.Kind in An_If_Path | An_Elsif_Path then
If_Statement_Check_2 (Cur_Level);
end if;
else
pragma Assert (C = '?');
declare
function Scan_To_Tilde return Positive;
function Scan_To_Tilde return Positive is
begin
loop
J := J + 1;
exit when T (J) = '~';
end loop;
return J - 1;
end Scan_To_Tilde;
Pre_First : constant Positive := J + 1;
Pre_Last : constant Positive := Scan_To_Tilde;
pragma Assert (T (J) = '~');
Between_First : constant Positive := J + 1;
Between_Last : constant Positive :=
Scan_To_Tilde;
pragma Assert (T (J) = '~');
Post_First : constant Positive := J + 1;
Post_Last : constant Positive := Scan_To_Tilde;
pragma Assert (T (J) = '~');
begin
Used (Subtree_Index) := True;
-- ???The following could use some cleanup
case Subtree.Kind is
when Flat_List_Kinds =>
Append (Tree_Stack, Subtree); -- push
Subtrees_To_Ada
(Subtree,
T (Pre_First .. Pre_Last),
T (Between_First .. Between_Last),
T (Post_First .. Post_Last));
Delete_Last (Tree_Stack); -- pop
when Not_An_Element =>
null;
when others =>
Interpret_Template
(T (Pre_First .. Pre_Last),
Subtrees => Empty_Tree_Array);
-- ???
-- if False and then Between /= "" then
-- Put ("\1, \2: ???Between = <<\3>>, " &
-- "T = <<\4>>\n", "???Image (Tr.Kind)",
-- Image (Subtree.Kind), String (Between),
-- String (T)); pragma Assert (Between =
-- ""); end if;
pragma Assert
(Kind not in An_If_Path | An_Elsif_Path);
-- No need for If_Statement_Check here
Subtree_To_Ada
(Subtree,
New_Level
(Tree,
Subtree_Index,
Cur_Level,
T),
Subtree_Index);
Interpret_Template
(T (Post_First .. Post_Last),
Subtrees => Empty_Tree_Array);
end case;
end;
end if;
end;
end;
when ';' =>
if Implicit_Null_Statement_Seen then
Implicit_Null_Statement_Seen := False;
else
Buffered_Output.Put_Char (C);
end if;
when others =>
Buffered_Output.Put_Char (C);
end case;
J := J + 1;
end loop;
if Used /= (Subtrees_Index => True) then -- ???
Buffered_Output.Put ("???Not all used: \1", "???Image (Tr.Kind)");
end if;
-- ???pragma Assert (Used = (Subtrees_Index => True));
end Interpret_Template;
use Alternative_Templates;
function Past_Call_Threshold (Actuals : Ada_Tree) return Boolean is
(Natural (Actuals.Subtree_Count) >
Options.Par_Associations_Threshold
and then
(for some Assoc of Actuals.Subtrees =>
Assoc.Subtrees (1).Kind /= Not_An_Element));
-- True if there are more parameter associations than the threshold,
-- and at least one of them is named.
function Hard_Breaks_For_Call (Kind : Ada_Tree_Kind) return Ada_Template
is (Ada_Template (Must_Replace
(W_Str (Template_Table (Kind).all),
"@ (~,@ ~)", "%(~,%~)")));
-- We use % instead of $ here, so that the indentation of these will not
-- affect following comments.
procedure Prefix_Notation_Call
(Label_Names, Callee, Actuals : Ada_Tree)
is
-- For X.F(Y,Z), which is shorthand for F(X,Y,Z), First is X and Rest
-- is Y,Z.
First : constant Ada_Tree := Actuals.Subtrees (1);
The_Rest : aliased Ada_Tree_Rec :=
(Kind => An_Association_List,
Checks => Asis.Extensions.Empty_Check_Set,
Subtree_Count => Actuals.Subtree_Count - 1,
Sloc => Asis.Text.Nil_Span,
Subtrees => Actuals.Subtrees (2 .. Actuals.Subtree_Count));
Rest : constant Ada_Tree := The_Rest'Unchecked_Access;
Past : constant Boolean := Past_Call_Threshold (Rest);
begin
if Label_Names.Subtree_Count /= 0 then
raise Program_Error
with "labeled prefix calls not yet implemented";
end if;
-- ???Work around possible bug in Function_Call_Parameters. Not sure
-- why Callee would be A_Selected_Component.
if Callee.Kind /= A_Selected_Component then
Subtree_To_Ada (First, Cur_Level + 1, Index_In_Parent => 1);
Buffered_Output.Put (".");
end if;
Subtree_To_Ada (Callee, Cur_Level + 1, Index_In_Parent => 2);
Subtrees_To_Ada
(Rest,
Pre =>
(if Past
then Prefix_Notation_Call_Alt_Templ_2
else Prefix_Notation_Call_Alt_Templ_1),
Between => (if Past then ",$" else ", "),
Post => (if Past then ")]" else ")"));
end Prefix_Notation_Call;
procedure Maybe_Blank_Line;
procedure Maybe_Blank_Line is
Insert_Blank_Line_Before : Boolean := False;
begin
if not Options.Insert_Blank_Lines then
return;
end if;
if Tree.Kind = A_Compilation_Unit then
Insert_Blank_Line_Before := True;
end if;
if Tree.Kind in
An_Ordinary_Type_Declaration |
-- ???(if rec etc)A_Record_Type_Definition
-- A_Derived_Record_Extension_Definition
A_Task_Type_Declaration |
A_Protected_Type_Declaration |
A_Single_Task_Declaration |
A_Single_Protected_Declaration |
A_Procedure_Body_Declaration |
A_Function_Body_Declaration |
A_Package_Declaration | -- ???(non lib unit)
A_Package_Body_Declaration |
A_Task_Body_Declaration |
A_Protected_Body_Declaration |
An_Entry_Body_Declaration |
A_Generic_Procedure_Declaration |
A_Generic_Function_Declaration |
A_Generic_Package_Declaration |
An_Enumeration_Type_Definition | --???(if big)
A_Loop_Statement |
A_While_Loop_Statement |
A_For_Loop_Statement |
A_Block_Statement |
An_Extended_Return_Statement |
An_Accept_Statement |
A_Selective_Accept_Statement |
A_Timed_Entry_Call_Statement |
A_Conditional_Entry_Call_Statement |
An_Asynchronous_Select_Statement |
An_If_Path | --???look up to If_Statement, then up to list.
An_Elsif_Path |
An_Else_Path |
A_Case_Statement |
A_Variant_Part |
A_Case_Path |
A_Record_Representation_Clause
-- An_Exception_Handler |???
then
declare
Parent : constant Ada_Tree := Parent_Tree;
begin
if Parent.Kind in Flat_List_Kinds then
if Parent.Subtrees (1) /= Tree then
Insert_Blank_Line_Before := True;
end if;
end if;
end;
end if;
if Insert_Blank_Line_Before then
pragma Assert (Line_Breaks (Last (Line_Breaks)).Hard);
pragma Assert
(Point (Out_Buf) =
Last_Position (Out_Buf) + 1); -- ???Do we need Last_Position?
pragma Assert
(Position (Out_Buf, Line_Breaks (Last (Line_Breaks)).Mark) =
Last_Position (Out_Buf));
pragma Assert (Lookback (Out_Buf) = NL);
-- There should already be a hard line break here; we're about to
-- add another one.
Append_Line_Break
(Hard => True,
Affects_Comments => False,
Level => 0,
Kind => Tree.Kind,
Template => Name_Find ("Maybe_Blank_Line"));
end if;
end Maybe_Blank_Line;
use Asis;
Index : Query_Index := 1;
-- Procedures for formatting the various kinds of node that are not
-- fully covered by Template_Table:
procedure Do_Accept_Statement;
procedure Do_Array_Aggregate;
procedure Do_Association;
procedure Do_Attribute_Reference;
procedure Do_Block_Statement;
procedure Do_Compilation_Unit;
procedure Do_Comment;
procedure Do_Case_Path;
procedure Do_Case_Statement;
procedure Do_Component_Clause;
procedure Do_Constrained_Array_Definition; -- also generic formal
procedure Do_Def_Name;
procedure Do_Extended_Return_Statement;
procedure Do_Extension_Aggregate;
procedure Do_Function_Call;
procedure Do_List;
procedure Do_Literal;
procedure Do_Null_Statement;
procedure Do_Ordinary_Type_Declaration;
procedure Do_Parameter_Specification; -- also Formal_Object_Declaration
procedure Do_Pragma;
procedure Do_Procedure_Call_Statement; -- also Entry_Call_Statement
procedure Do_Qualified_Expression;
procedure Do_Record_Aggregate;
procedure Do_Single_Task_Declaration;
procedure Do_Subp_Decl -- subprograms and the like
(Is_Function, Is_Body : Boolean;
Params_Query : Structural_Queries);
procedure Do_Subtype_Indication;
procedure Do_Task_Type_Declaration;
procedure Do_Usage_Name;
procedure Do_Others; -- anything not listed above
procedure Do_Accept_Statement is
begin
-- If there are no statements or exception handlers, use short form
if Tree.Subtrees (5).Subtree_Count = 0
and then Tree.Subtrees (6).Subtree_Count = 0
then
Interpret_Template (Accept_Statement_Alt_Templ);
else
Interpret_Template;
end if;
end Do_Accept_Statement;
procedure Do_Array_Aggregate is
begin
if Parent_Tree.Kind = An_Enumeration_Representation_Clause then
Interpret_Template ("?[@(~,@ ~)]~");
else
Interpret_Template;
end if;
end Do_Array_Aggregate;
procedure Do_Association is
-- Some have a single name before the "=>", and some have a list
-- separated by "|". Single_Name_Only is True in the former case.
-- Positional_Notation is True if there are no names (no "=>").
-- Single_Name is True if there is a single name before "=>",
-- regardless of whether a list is allowed.
Single_Name_Only : constant Boolean :=
(case Tree.Kind is
when A_Pragma_Argument_Association |
A_Parameter_Association |
A_Generic_Association =>
True,
when A_Discriminant_Association |
A_Record_Component_Association |
An_Array_Component_Association =>
False,
when others => False); -- Can't happen
Positional_Notation : constant Boolean :=
(if Single_Name_Only then Tree.Subtrees (1).Kind = Not_An_Element
else Tree.Subtrees (1).Subtree_Count = 0 -- list length 0?
);
begin
if Positional_Notation then
Interpret_Template ("?~~~!");
-- The "?~~~" generates nothing.
else
declare
Single_Name : constant Boolean :=
Single_Name_Only or else Tree.Subtrees (1).Subtree_Count = 1;
begin
-- This is needed because the "[]" is not properly nested with
-- the "?~~~".
if Single_Name then
Interpret_Template ("?~~ ^=>[@ ~!]");
else
Interpret_Template ("?~ ^|@ ~ ^=>[@ ~!]");
end if;
end;
end if;
end Do_Association;
procedure Do_Attribute_Reference is
Attribute_Designator_Id : constant String :=
To_Lower (Get_Name_String (Tree.Subtrees (2).Ref_Name));
begin
-- If the Attribute_Designator_Identifier is "Update", then we need
-- to avoid generating an extra pair of parentheses, because ASIS
-- represents X'Update(X => Y) as an attribute reference whose
-- Attribute_Designator_Expressions is a list containing the
-- aggregate (X => Y), so it would otherwise come out as
-- X'Update((X => Y)).
if Attribute_Designator_Id = "update" then
pragma Assert (Tree.Kind = An_Implementation_Defined_Attribute);
Interpret_Template ("!'[@!? @~, ~~]");
else
Interpret_Template;
end if;
end Do_Attribute_Reference;
procedure Do_Block_Statement is
begin
-- If Block_Declarative_Items is empty, leave off the "declare"
if Tree.Subtrees (3).Subtree_Count = 0 then
Interpret_Template (Block_Statement_Alt_Templ_1);
else
Interpret_Template (Block_Statement_Alt_Templ_2);
end if;
end Do_Block_Statement;
use Buffered_Output;
procedure Do_Compilation_Unit is
begin
-- Put ("-- \1 = \2", "Unit_Kind", Capitalize (Tree.Unit_Kind'Img));
-- Interpret_Template ("$", Subtrees => Empty_Tree_Array);
-- Put
-- ("-- \1 = \2",
-- "Unit_Class",
-- Capitalize (Tree.Unit_Class'Img));
-- Interpret_Template ("$", Subtrees => Empty_Tree_Array);
-- Put
-- ("-- \1 = \2",
-- "Unit_Origin",
-- Capitalize (Tree.Unit_Origin'Img));
-- Interpret_Template ("$", Subtrees => Empty_Tree_Array);
-- Interpret_Template ("$", Subtrees => Empty_Tree_Array);
Subtrees_To_Ada
(Tree.Subtrees (1),
Pre => "",
Between => ";$",
Post => ";$$");
-- If it's a subunit, we need "separate (Parent.Name)"
if Tree.Unit_Kind in A_Subunit then
declare
N : constant W_Str := Get_Name_String (Tree.Unit_Full_Name);
Last : Positive := N'Last;
begin
-- Determine parent name by searching for the last '.'
while N (Last) /= '.' loop
Last := Last - 1;
end loop;
Last := Last - 1;
Put
("separate\1(\2)",
(if Options.RM_Style_Spacing then "" else " "),
N (1 .. Last));
Interpret_Template ("$", Subtrees => Empty_Tree_Array);
end;
end if;
case Tree.Unit_Class is
when A_Private_Declaration =>
Put ("private ");
when A_Public_Declaration |
A_Public_Body |
A_Public_Declaration_And_Body |
A_Private_Body |
A_Separate_Body =>
null;
when Not_A_Class =>
raise Program_Error;
end case;
Subtree_To_Ada
(Tree.Subtrees (2),
Cur_Level + 1,
Index_In_Parent => 2);
Put (";");
Interpret_Template ("$", Subtrees => Empty_Tree_Array);
Subtrees_To_Ada
(Tree.Subtrees (3),
Pre => "",
Between => ";$",
Post => ";$");
end Do_Compilation_Unit;
procedure Do_Comment is
S : constant W_Str := Get_Name_String (Tree.Text);
pragma Assert (S in Scanner.Gen_Plus | Scanner.Gen_Minus);
-- These are the only ones used, for now.
Gen_Indent : constant Natural :=
Good_Column (Options.PP_Indentation,
Options.Max_Line_Length - Cur_Indentation - S'Length);
pragma Assert ((Gen_Indent mod Options.PP_Indentation) = 0);
begin
pragma Assert (Check_Whitespace);
Check_Whitespace := False;
Interpret_Template
((1 .. Gen_Indent => ' '),
Subtrees => Empty_Tree_Array);
Interpret_Template
(Ada_Template (S),
Subtrees => Empty_Tree_Array);
Check_Whitespace := True;
Interpret_Template ("$", Subtrees => Empty_Tree_Array);
if S = Scanner.Gen_Minus then
Interpret_Template ("$", Subtrees => Empty_Tree_Array);
end if;
end Do_Comment;
procedure Do_Case_Path is
Stms : constant Ada_Tree := Tree.Subtrees (2);
begin
-- If the statement list is a single block statement that starts on
-- the same line as the "when", then we assume the user wants to keep
-- it that way. For example:
--
-- when Upper_Case => Upper_Case_Case : begin
if Stms.Subtree_Count = 1
and then Stms.Subtrees (1).Kind = A_Block_Statement
and then Stms.Subtrees (1).Sloc.First_Line = Tree.Sloc.First_Line
then
Interpret_Template ("when ?[@~ |@ ~]~ => " & "?~~;$~");
else
Interpret_Template;
end if;
end Do_Case_Path;
procedure Do_Case_Statement is
-- If all the "when"s appear in the same column as "case", then we
-- assume that's what the user intended, and avoid indenting the
-- "when"s. ???But the old gnatpp doesn't do that, so disable it
-- for now.
Case_Col : constant Positive := Tree.Sloc.First_Column;
-- Column in which "case" appears
Whens_Col : Positive :=
Tree.Subtrees (3).Subtrees (1).Sloc.First_Column;
-- Column in which all the "when"s appear, if they're all the same
begin
for W of Tree.Subtrees (3).Subtrees loop
if W.Sloc.First_Column /= Whens_Col then
Whens_Col := Positive'Last; -- not all the same
end if;
end loop;
Whens_Col := Positive'Last; -- ???disable for now
if Case_Col = Whens_Col and then Case_Col /= 1 then
Interpret_Template (Labels & "case[@ !]@ is$" & "!" & "end case");
else
Interpret_Template;
end if;
end Do_Case_Statement;
procedure Do_Component_Clause is
-- We use "&" to right-justify the three expressions X, Y, and Z in
-- "at X range Y .. Z". We need to lift the Y and Z expressions up so
-- they appear at the same level as X, so the Tree and Parent of the
-- "&" will match that of the following "^". The Index_In_Lines must
-- also match. The end result will be something like:
-- Thing at 0 range 0 .. 127;
-- Thing_2 at 0 range 128 .. 1023;
pragma Assert
(Tree.Subtrees (3).Kind = A_Discrete_Simple_Expression_Range);
Subtrees : constant Ada_Tree_Array :=
Tree.Subtrees (1 .. 2) & Tree.Subtrees (3).Subtrees;
pragma Assert (Subtrees'Last = 4);
Cc_Templ : constant Ada_Template :=
"! ^at &2! ^2range [@&3! ^3..[@ &4!^4]]";
begin
Interpret_Template (Cc_Templ, Subtrees);
end Do_Component_Clause;
procedure Do_Constrained_Array_Definition is
begin
case Tree.Subtrees (1).Subtrees (1).Kind is
when A_Range_Attribute_Reference | A_Simple_Expression_Range =>
Interpret_Template (Constrained_Array_Definition_Alt_Templ_1);
when others =>
Interpret_Template (Constrained_Array_Definition_Alt_Templ_2);
end case;
end Do_Constrained_Array_Definition;
procedure Do_Def_Name is
Kind : Ada_Tree_Kind;
begin
if Tree.Kind = A_Defining_Expanded_Name then
Interpret_Template ("![@.!]");
else
-- Odd special case for task and protected bodies: If we have
-- "task body T is...", what casing rule should be used for "T"?
-- If the spec is a task type declaration, we should use the rule
-- for types, but if it's a single task declaration, we should use
-- the rule for other names. This is only relevant if
-- PP_Type_Casing /= PP_Name_Casing, which is hardly ever the
-- case.
if Decl_Of_Def (Symtab, Tree).Kind in
A_Task_Body_Declaration | A_Protected_Body_Declaration
then
Kind := Decl_Of_Def_Kind (Symtab, Spec_Of_Body (Symtab, Tree));
else
Kind := Decl_Of_Def_Kind (Symtab, Tree);
end if;
Put ("\1",
Id_With_Casing (Tree.Def_Name, Kind, Is_Predef => False));
end if;
end Do_Def_Name;
procedure Do_Extended_Return_Statement is
begin
-- If there are no statements or exception handlers, use short form
if Tree.Subtrees (3).Subtree_Count = 0
and then Tree.Subtrees (4).Subtree_Count = 0
then
Interpret_Template (Extended_Return_Statement_Alt_Templ);
else
Interpret_Template;
end if;
end Do_Extended_Return_Statement;
procedure Do_Extension_Aggregate is
begin
if Tree.Subtrees (2).Subtree_Count = 0 then
Interpret_Template ("@(! with @" & "null record)!");
else
Interpret_Template;
end if;
end Do_Extension_Aggregate;
type Precedence_Level is range 1 .. 7;
function Precedence (Expr : Ada_Tree) return Precedence_Level;
function Precedence (Expr : Ada_Tree) return Precedence_Level is
begin
case Expr.Kind is
-- ???Don't treat membership tests as operators, for now
-- when An_In_Membership_Test | A_Not_In_Membership_Test =>
-- return 1;
when An_And_Then_Short_Circuit | An_Or_Else_Short_Circuit =>
return 2;
when A_Function_Call =>
-- Binary operator using operator notation
if Expr.Subtrees (3).Kind /= An_Is_Prefix_Call
and then Expr.Subtrees (2).Subtree_Count /= 1
then
pragma Assert
(Expr.Subtrees (4).Kind /= An_Is_Prefix_Notation);
pragma Assert (Expr.Subtrees (2).Subtree_Count = 2);
case Expr.Subtrees (1).Kind is
when An_And_Operator | An_Or_Operator | An_Xor_Operator =>
return 2; -- same as 'and then' and 'or else'
when An_Equal_Operator |
A_Not_Equal_Operator |
A_Less_Than_Operator |
A_Less_Than_Or_Equal_Operator |
A_Greater_Than_Operator |
A_Greater_Than_Or_Equal_Operator =>
return 3;
when A_Plus_Operator |
A_Minus_Operator |
A_Concatenate_Operator =>
return 4;
when A_Multiply_Operator |
A_Divide_Operator |
A_Mod_Operator |
A_Rem_Operator =>
return 5;
when An_Exponentiate_Operator =>
return 6;
when others =>
raise Program_Error;
end case;
-- Unary operator or normal function-call notation
else
return 7;
end if;
-- Assume anything else is a primary (highest precedence)
when others =>
return 7;
end case;
end Precedence;
function Get_Arg (Expr : Ada_Tree; N : Query_Index) return Ada_Tree;
function Get_Arg (Expr : Ada_Tree; N : Query_Index) return Ada_Tree is
Assoc : constant Ada_Tree := Expr.Subtrees (2).Subtrees (N);
pragma Assert (Assoc.Kind = A_Parameter_Association);
function Is_Positional
(Assoc : Ada_Tree)
return Boolean is
(Assoc.Subtrees (1).Kind = Not_An_Element);
pragma Assert (Is_Positional (Assoc));
begin
return Assoc.Subtrees (2);
end Get_Arg;
function Make_Op (Expr : Ada_Tree) return Ada_Tree;
-- Create operator node. This is a separate function to reduce stack
-- usage (for example long strings of "&" can cause deep recursion).
function Make_Op (Expr : Ada_Tree) return Ada_Tree is
begin
return Result : constant Ada_Tree := Make (An_Identifier) do
case Expr.Kind is
when A_Function_Call =>
declare
Q_Op_Sym : constant String :=
To_Lower (Get_Name_String (Expr.Subtrees (1).Ref_Name));
Un_Q : constant String (1 .. Q_Op_Sym'Length - 2) :=
Q_Op_Sym (2 .. Q_Op_Sym'Last - 1);
-- Strip off quotes
begin
Result.Ref := Name_Find (Un_Q);
end;
when An_And_Then_Short_Circuit =>
Result.Ref := Name_And_Then;
when An_Or_Else_Short_Circuit =>
Result.Ref := Name_Or_Else;
when others =>
raise Program_Error;
end case;
Result.Ref_Name := Result.Ref;
end return;
end Make_Op;
procedure Do_Unary_Operator (Expr : Ada_Tree);
procedure Do_Binary_Operator
(Expr : Ada_Tree;
Is_Right : Boolean;
Cur_Level : Nesting_Level);
-- Also handles some things that look like operators, like "and then".
-- Is_Right is True if Expr is the right-hand argument of an outer
-- binary operator. Otherwise (Expr is the left-hand argument, or Expr's
-- parent is something else, like a parenthesized expression), Is_Right
-- is False.
function Is_Bin_Op (Expr : Ada_Tree) return Boolean;
procedure Do_Unary_Operator (Expr : Ada_Tree) is
Op : constant Ada_Tree := Make_Op (Expr);
Arg1 : constant Ada_Tree := Get_Arg (Expr, 1);
begin
-- First we have a special case for the Depends and Refined_Depends
-- aspect specifications. We want to pretend that "=>+" is an
-- operator, so we print: "Depends => (A =>+ B)" instead of
-- "Depends => (A => +B)". We don't bother with this for pragma
-- [Refined_]Depends, because that's mainly for the compiler's
-- implementation of the aspect, so we don't expect it to be used
-- much.
if Ancestor_Tree (4).Kind = An_Aspect_Specification
and then Ancestor_Tree (4).Subtrees (1).Ref_Name in
Name_Depends | Name_Refined_Depends
then
pragma Assert (Expr.Subtrees (1).Kind = A_Unary_Plus_Operator);
pragma Assert
(Slice (Out_Buf, Point (Out_Buf) - 4, Point (Out_Buf) - 1)
= " => ");
declare
Subtrees : constant Ada_Tree_Array := (1 => Arg1);
begin
Replace_Previous (Out_Buf, '+');
Interpret_Template (" !", Subtrees);
end;
-- No special "[Refined_]Depends" case. Put a space after the
-- operator, except for "+" and "-".
else
declare
Subtrees : constant Ada_Tree_Array := (Op, Arg1);
begin
if Expr.Subtrees (1).Kind in
A_Unary_Plus_Operator | A_Unary_Minus_Operator
then
Interpret_Template ("!!", Subtrees);
else
Interpret_Template ("! !", Subtrees);
end if;
end;
end if;
end Do_Unary_Operator;
function Is_Bin_Op (Expr : Ada_Tree) return Boolean is
begin
case Expr.Kind is
when A_Function_Call =>
return Expr.Subtrees (3).Kind /= An_Is_Prefix_Call
and then Expr.Subtrees (2).Subtree_Count = 2;
when An_And_Then_Short_Circuit | An_Or_Else_Short_Circuit =>
return True;
when others =>
return False;
end case;
end Is_Bin_Op;
procedure Do_Binary_Operator
(Expr : Ada_Tree;
Is_Right : Boolean;
Cur_Level : Nesting_Level)
is
Is_Short_C : constant Boolean :=
Expr.Kind in An_And_Then_Short_Circuit | An_Or_Else_Short_Circuit;
Is_Expon : constant Boolean := -- True for "**"
(Expr.Kind in A_Function_Call
and then Expr.Subtrees (1).Kind = An_Exponentiate_Operator);
Op : constant Ada_Tree := Make_Op (Expr);
Arg1, Arg2 : Ada_Tree;
Arg1_Higher : Boolean; -- Arg1 is higher precedence than Expr
-- Calculate template fragments for the args (Arg1/2_T), that indent
-- if the arg is a higher precedence binary operator than the whole
-- expression.
-- Start of processing for Do_Binary_Operator
begin
if Is_Short_C then
Arg1 := Expr.Subtrees (1);
Arg2 := Expr.Subtrees (2);
else -- function call
Arg1 := Get_Arg (Expr, 1);
Arg2 := Get_Arg (Expr, 2);
end if;
-- The arguments can't have lower precedence than the expression as
-- a whole; that's what precedence means -- you need parens to put
-- a "+" inside a "*". The right-hand argument can't have equal
-- precedence, because Ada has no right-associative binary operators.
pragma Assert (Precedence (Arg1) >= Precedence (Expr));
pragma Assert (Precedence (Arg2) > Precedence (Expr));
Arg1_Higher := Precedence (Arg1) > Precedence (Expr);
-- The recursive calls to Do_Binary_Operator below bypass the
-- normal recursion via Subtree_To_Ada, so we need to pass along the
-- Cur_Level to Interpret_Template. When we reach something that's
-- not a binary op, we switch back to the normal recursion via
-- Interpret_Template on the Arg. We split lines after the
-- operator symbol, as in:
-- Some_Long_Thing +
-- Some_Other_Long_Thing
-- except in the case of short circuits:
-- Some_Long_Thing
-- and then Some_Other_Long_Thing
-- The --split-line-before-op switch causes all operators to be
-- treated like short circuits in this regard.
--
-- All operators are surrounded by blanks, except for "**":
-- Max : constant := 2**31 - 1;
if Is_Bin_Op (Arg1) then
if Is_Right and then Arg1_Higher then
Interpret_Template ("[@", Empty_Tree_Array, Cur_Level);
end if;
Do_Binary_Operator
(Arg1,
Is_Right => Is_Right,
Cur_Level => Cur_Level + (if Arg1_Higher then 1 else 0));
if Is_Right and then Arg1_Higher then
Interpret_Template ("]", Empty_Tree_Array, Cur_Level);
end if;
else
Interpret_Template
("!",
Subtrees => (1 => Arg1),
Cur_Level => Cur_Level);
end if;
if Is_Short_C or Options.Split_Line_Before_Op then
Interpret_Template ("@", Empty_Tree_Array, Cur_Level);
end if;
Interpret_Template
((if Is_Expon then "!" else " ! "), -- no blanks for "**"
Subtrees => (1 => Op),
Cur_Level => Cur_Level);
if not (Is_Short_C or Options.Split_Line_Before_Op) then
Interpret_Template ("@", Empty_Tree_Array, Cur_Level);
end if;
if Is_Bin_Op (Arg2) then
Interpret_Template ("[@", Empty_Tree_Array, Cur_Level + 1);
Do_Binary_Operator
(Arg2,
Is_Right => True,
Cur_Level => Cur_Level + 1);
Interpret_Template ("]", Empty_Tree_Array, Cur_Level + 1);
else
Interpret_Template
("!",
Subtrees => (1 => Arg2),
Cur_Level => Cur_Level + 1);
end if;
end Do_Binary_Operator;
procedure Do_Function_Call is
begin
-- Note: Is_Prefix_Notation is for Object.Operation(...) notation,
-- whereas Is_Prefix_Call is for anything that's not an operator
-- notation call. Thus Is_Prefix_Call is True for "&"(X, Y), and
-- False for X&Y.
if Tree.Subtrees (4).Kind = An_Is_Prefix_Notation then
pragma Assert (Tree.Subtrees (3).Kind = An_Is_Prefix_Call);
Prefix_Notation_Call
(Label_Names => Empty (A_Defining_Name_List),
Callee => Tree.Subtrees (1),
Actuals => Tree.Subtrees (2));
-- Determine whether to use operator notation, like X+Y instead of
-- "+"(X,Y). We can use operator notation if it's an operator call,
-- and the argument(s) are in positional notation (not named). ???We
-- must use operator notation for "/=", to work around compiler bug.
-- In some cases, "/="(X, Y) doesn't work (on access types?), so we
-- generate (X /= Y) instead.
-- We don't want to translate "&" (STRING'("AB"), STRING'("CDEF"))(5)
-- /= CHARACTER'('E') into ((STRING'("AB") & STRING'("CDEF"))(5)
-- /= CHARACTER'('E')) because an operator-notation call is not a
-- name, and therefore cannot be used as the prefix of an indexed
-- component.
elsif Tree.Subtrees (3).Kind = An_Is_Prefix_Call then
if Past_Call_Threshold (Tree.Subtrees (2)) then
Interpret_Template (Hard_Breaks_For_Call (Tree.Kind));
else
Interpret_Template; -- normal "F (X)" notation
end if;
-- Operator notation:
else
pragma Assert
(Tree.Subtrees (1).Kind in Flat_Operator_Symbol_Kinds);
pragma Assert (Tree.Subtrees (2).Subtree_Count in 1 .. 2);
-- Unary operator
if Tree.Subtrees (2).Subtree_Count = 1 then
Do_Unary_Operator (Tree);
-- Binary operator
else
Do_Binary_Operator
(Tree,
Is_Right => False,
Cur_Level => Cur_Level);
end if;
end if;
end Do_Function_Call;
procedure Do_List is
-- This formats the list elements with a hard line break in between. It
-- is called when a "!" in a template refers to a list subtree. If you
-- don't want this formatting, you must use "?" instead of "!". See,
-- for example, the template for An_If_Expression, where we want soft
-- line breaks in between paths. Sometimes this is called for a list
-- of one element, in which case the Between doesn't matter (e.g.
-- Defining_Name_List, where there is only one).
begin
Subtrees_To_Ada (Tree, Pre => "", Between => "$", Post => "");
end Do_List;
procedure Do_Literal is
S : constant W_Str := Get_Name_String (Tree.Lit_Val);
function Last_Digit
(First : Positive; Based : Boolean) return Positive;
-- Returns the index of the last digit in S starting at
-- First
procedure Put_With_Underscores
(Part : W_Str; Grouping : Positive; Int : Boolean);
-- Part is the integer part (before the '.', if any) or the
-- fractional part (after the '.'). Int is True for the integer part.
-- For example, for "16#12345.67890#e2", this will be called for Part
-- = "12345" and Int = True, then for Part = "67890" and Int = False.
-- We want to get "16#1_2345.6789_0#e2" (assuming Grouping = 4).
procedure Put_With_Underscores
(Part : W_Str; Grouping : Positive; Int : Boolean)
is
Count : Natural := (if Int then Part'Length else 0);
Inc : constant Integer := (if Int then -1 else 1);
-- For the integer part, we count downward from the Length; for
-- the fractional part, we count upward from zero. If Count is
-- divisible by Grouping, the next character should be preceded by
-- an underscore, except there is never a leading underscore.
begin
for J in Part'Range loop
if J /= Part'First and then Count mod Grouping = 0 then
Put_Char ('_');
end if;
Put_Char (Part (J));
Count := Count + Inc;
end loop;
end Put_With_Underscores;
function Last_Digit
(First : Positive; Based : Boolean) return Positive
is
begin
for J in First .. S'Last loop
if Is_Digit (S (J)) then
null;
elsif Based and then Is_Letter (S (J)) then
null;
else
return J - 1;
end if;
end loop;
return S'Last;
end Last_Digit;
-- Start of processing for Do_Literal
begin
pragma Assert (Check_Whitespace);
Check_Whitespace := False;
-- In most cases, we simply print out S. All of the complicated code
-- below is for the --decimal-grouping and --based-grouping
-- switches. If --decimal-grouping was used to specify a nonzero
-- value, and we have a numeric literal without a base, and that
-- literal contains no underscores, we insert underscores. Similarly
-- for --based-grouping. A based literal is one containing "#" or
-- ":"; note that "10#...#" is considered based, not decimal.
case Tree.Kind is
when A_String_Literal =>
Put ("\1", S);
when An_Integer_Literal | A_Real_Literal =>
if Options.Decimal_Grouping = 0
and then Options.Based_Grouping = 0
then
Put ("\1", S);
else
declare
Sharp : constant Natural :=
(if Find (S, "#") /= 0 then Find (S, "#")
else Find (S, ":"));
Underscore : constant Natural := Find (S, "_");
Grouping : constant Natural :=
(if Underscore /= 0 then 0
elsif Sharp = 0 then Options.Decimal_Grouping
else Options.Based_Grouping);
Int_First, Int_Last, Frac_First, Frac_Last : Natural;
-- These point to the slices of the literal that should
-- have underscores inserted. For example:
-- For 12345 or 12345E6:
-- S (Int_First .. Int_Last) = "12345"
-- For 12345.6789 or 16#12345.6789#E-3:
-- S (Int_First .. Int_Last) = "12345", and
-- S (Frac_First .. Frac_Last) = "6789"
begin
if Grouping = 0 then
Put ("\1", S);
else
Int_First := Sharp + 1;
Int_Last :=
Last_Digit (Int_First, Based => Sharp /= 0);
Put ("\1", S (1 .. Sharp));
Put_With_Underscores
(S (Int_First .. Int_Last),
Grouping, Int => True);
if Tree.Kind = An_Integer_Literal then
Put ("\1", S (Int_Last + 1 .. S'Last));
else
Frac_First := Int_Last + 2; -- skip '.'
Frac_Last := Last_Digit
(Frac_First, Based => Sharp /= 0);
pragma Assert
(S (Int_Last + 1 .. Frac_First - 1) = ".");
Put_Char ('.');
Put_With_Underscores
(S (Frac_First .. Frac_Last),
Grouping, Int => False);
Put ("\1", S (Frac_Last + 1 .. S'Last));
end if;
end if;
end;
end if;
when others => raise Program_Error;
end case;
Check_Whitespace := True;
end Do_Literal;
procedure Do_Null_Statement is
begin
-- If a label comes at the end of a statement list, as allowed in Ada
-- 2012, ASIS inserts an extra implicit null statement to hang the
-- label off of. We don't want to print that statement, because
-- it wasn't in the source code. We can detect such implicit null
-- statements by checking for a nil Sloc. We also need to suppress
-- the ";" that comes after the implicit 'null', which is the purpose
-- of Implicit_Null_Statement_Seen. We set that flag True here, and
-- the very next template character seen by Interpret_Template will
-- be that ";", so Interpret_Template will suppress the ";" and reset
-- Implicit_Null_Statement_Seen to False.
if Tree.Subtrees (1).Subtree_Count /= 0
and then Asis.Text.Is_Nil (Tree.Sloc)
then
Interpret_Template (Labels);
Implicit_Null_Statement_Seen := True;
else
Interpret_Template;
end if;
end Do_Null_Statement;
procedure Do_Ordinary_Type_Declaration is
begin
if Tree.Subtrees (3).Kind in
A_Derived_Record_Extension_Definition |
A_Record_Type_Definition |
A_Tagged_Record_Type_Definition |
An_Access_To_Procedure |
An_Access_To_Protected_Procedure |
An_Access_To_Function |
An_Access_To_Protected_Function
then
Interpret_Template ("type !! is !" & Aspects);
-- Record_Definition or other subtree will take care of new lines.
-- ???It might be better to have a *weak* newline, though.
else
Interpret_Template;
end if;
end Do_Ordinary_Type_Declaration;
procedure Do_Others is
begin
if Template_Table (Tree.Kind) = null then
-- Put ("null templ:\1", Image (Tree.Kind));
Subtrees_To_Ada (Tree, Pre => "{", Between => "|", Post => "}");
raise Program_Error;
else
Interpret_Template;
end if;
end Do_Others;
procedure Do_Parameter_Specification is
begin
Subtrees_To_Ada
(Tree.Subtrees (Index),
Pre => "",
Between => ",@ ",
Post => "");
Interpret_Template
(Parameter_Specification_Alt_Templ,
Subtrees => Empty_Tree_Array);
case Tree.Kind is
when A_Parameter_Specification =>
Index := Index + 1;
if Tree.Subtrees (Index).Kind /=
Not_An_Element
then -- "aliased"
Subtree_To_Ada (Tree.Subtrees (Index), Cur_Level + 1, Index);
Put (" ");
end if;
when A_Formal_Object_Declaration =>
null; -- A_Formal_Object_Declaration doesn't have "aliased"
when others =>
raise Program_Error;
end case;
if Tree.Mode in An_In_Mode | An_In_Out_Mode then
Put ("in ");
end if;
Interpret_Template ("^2", Subtrees => Empty_Tree_Array);
if Tree.Mode in An_Out_Mode | An_In_Out_Mode then
Put ("out ");
end if;
Interpret_Template ("^3", Subtrees => Empty_Tree_Array);
Index := Index + 1;
if Tree.Subtrees (Index).Kind /= Not_An_Element then -- "not null"
Subtree_To_Ada (Tree.Subtrees (Index), Cur_Level + 1, Index);
Put (" ");
end if;
Index := Index + 1;
Subtree_To_Ada (Tree.Subtrees (Index), Cur_Level + 1, Index);
Index := Index + 1;
if Tree.Subtrees (Index).Kind /= Not_An_Element then
Interpret_Template
(" ^4:=[@ !]",
Subtrees => (1 => Tree.Subtrees (Index)));
end if;
end Do_Parameter_Specification;
procedure Do_Pragma is
begin
Put
("pragma \1",
Id_With_Casing (Tree.Pragma_Name, Tree.Kind, Is_Predef => False));
Interpret_Template (Pragma_Alt_Templ);
end Do_Pragma;
procedure Do_Procedure_Call_Statement is
begin
if Tree.Kind = A_Procedure_Call_Statement
and then Tree.Subtrees (4).Kind = An_Is_Prefix_Notation
then
Prefix_Notation_Call
(Label_Names => Tree.Subtrees (1),
Callee => Tree.Subtrees (2),
Actuals => Tree.Subtrees (3));
elsif Past_Call_Threshold (Tree.Subtrees (3)) then
Interpret_Template (Hard_Breaks_For_Call (Tree.Kind));
else
Interpret_Template;
end if;
end Do_Procedure_Call_Statement;
procedure Do_Qualified_Expression is
begin
if Tree.Subtrees (2).Kind in
A_Record_Aggregate |
An_Extension_Aggregate |
A_Positional_Array_Aggregate |
A_Named_Array_Aggregate
then
Interpret_Template ("!'[@!]");
-- If the thing after the ' is an aggregate, we leave out the
-- parentheses here, because the aggregate will insert them. We
-- want T'(X, Y, Z), not T'((X, Y, Z)).
else
Interpret_Template;
end if;
end Do_Qualified_Expression;
procedure Do_Record_Aggregate is
begin
if Tree.Subtrees (1).Subtree_Count = 0 then
Interpret_Template ("@(null record)!");
else
Interpret_Template;
end if;
end Do_Record_Aggregate;
procedure Do_Single_Task_Declaration is
begin
-- For single task declarations, use short form if
-- Object_Declaration_View is Nil
if Is_Nil (Tree.Subtrees (4)) then
Interpret_Template ("task !" & Aspects & "!!");
else
Interpret_Template;
end if;
end Do_Single_Task_Declaration;
procedure Do_Subp_Decl
(Is_Function, Is_Body : Boolean;
Params_Query : Structural_Queries)
-- Params_Query is the query for getting the formal parameters
is
-- This is for subprogram declarations and the like -- everything
-- that has a formal parameter list.
Param_Count : constant Query_Count :=
Get (Tree, Params_Query).Subtree_Count +
Boolean'Pos (Is_Function); -- Add one extra for function result
begin
if (Options.Par_Specs_Threshold = 0
and then Options.Separate_Line_For_IS)
or else Param_Count > Query_Count (Options.Par_Specs_Threshold)
then
Interpret_Template
(Subp_Decl_With_Hard_Breaks (Tree, Is_Function, Is_Body));
else
Interpret_Template;
end if;
end Do_Subp_Decl;
procedure Do_Subtype_Indication is
begin
if Tree.Subtrees (4).Kind in
A_Range_Attribute_Reference |
A_Simple_Expression_Range
then
Interpret_Template ("?~~ ~?~~ ~!? range ~~~");
elsif Options.RM_Style_Spacing
and then Tree.Subtrees (4).Kind = An_Index_Constraint
then
Interpret_Template ("?~~ ~?~~ ~!?~~~");
else
Interpret_Template ("?~~ ~?~~ ~!? ~~~");
end if;
end Do_Subtype_Indication;
procedure Do_Task_Type_Declaration is
begin
-- For task type declarations, use short form if
-- Type_Declaration_View is Nil
if Is_Nil (Tree.Subtrees (5)) then
Interpret_Template ("task type !!" & Aspects & "!!");
else
Interpret_Template;
end if;
end Do_Task_Type_Declaration;
procedure Do_Usage_Name is
-- The following works around a compiler limitation related to
-- 'Elab_Spec and 'Elab_Body attributes. For something like
-- "Ada.Text_IO'Elab_Spec", the compiler does not analyze the prefix
-- "Ada.Text_IO", so it looks like a name that doesn't denote
-- anything, like an identifier specific to a pragma. Setting
-- Elab_Spec_Seen to True tells Id_With_Casing to treat it like a
-- normal name (it really DOES denote something).
Elab_Spec_Seen : Boolean := False;
N : Tree_Stack_Index := Last_Index (Tree_Stack);
P : Ada_Tree_Base;
A : Name_Id;
begin
while N > 1 and then Tree_Stack (N - 1).Kind = A_Selected_Component
loop
N := N - 1;
end loop;
if N > 1 then
P := Tree_Stack (N - 1);
if P.Kind = An_Implementation_Defined_Attribute then
A := P.Subtrees (2).Ref_Name;
if
(A = Name_Find ("Elab_Spec")
or else A = Name_Find ("Elab_Body"))
and then P.Subtrees (1) = Tree_Stack (N)
then
Elab_Spec_Seen := True;
end if;
end if;
end if;
-- End special handling for 'Elab_Spec and 'Elab_Body
Put
("\1",
Id_With_Casing
(Tree.Ref_Name,
Tree.Decl_Kind,
Tree.Is_Predef,
Use_Name_Casing_For_Nils => Elab_Spec_Seen));
end Do_Usage_Name;
-- Start of processing for Subtree_To_Ada
begin
Append (Tree_Stack, Tree); -- push
Maybe_Blank_Line;
case Tree.Kind is
when A_Compilation_Unit =>
Do_Compilation_Unit;
when A_Comment =>
pragma Assert (False); -- not used
Do_Comment;
when Def_Names =>
Do_Def_Name;
when Usage_Names =>
Do_Usage_Name;
when An_Integer_Literal | A_Real_Literal | A_String_Literal =>
Do_Literal;
when Flat_Pragma_Kinds =>
Do_Pragma;
when A_Null_Statement =>
Do_Null_Statement;
when An_Ordinary_Type_Declaration =>
Do_Ordinary_Type_Declaration;
when A_Procedure_Call_Statement | An_Entry_Call_Statement =>
Do_Procedure_Call_Statement;
when A_Function_Call =>
Do_Function_Call;
when An_And_Then_Short_Circuit | An_Or_Else_Short_Circuit =>
Do_Binary_Operator
(Tree,
Is_Right => False,
Cur_Level => Cur_Level);
when A_Task_Type_Declaration =>
Do_Task_Type_Declaration;
when A_Single_Task_Declaration =>
Do_Single_Task_Declaration;
when A_Pragma_Argument_Association |
A_Discriminant_Association |
A_Record_Component_Association |
An_Array_Component_Association |
A_Parameter_Association |
A_Generic_Association =>
Do_Association;
when Flat_Attribute_Reference_Kinds =>
Do_Attribute_Reference;
when A_Block_Statement =>
Do_Block_Statement;
when A_Subtype_Indication =>
Do_Subtype_Indication;
when A_Case_Path =>
Do_Case_Path;
when A_Case_Statement =>
Do_Case_Statement;
when A_Component_Clause =>
Do_Component_Clause;
when A_Constrained_Array_Definition |
A_Formal_Constrained_Array_Definition =>
Do_Constrained_Array_Definition;
when An_Extended_Return_Statement =>
Do_Extended_Return_Statement;
when An_Accept_Statement =>
Do_Accept_Statement;
when A_Positional_Array_Aggregate |
A_Named_Array_Aggregate =>
Do_Array_Aggregate;
when A_Qualified_Expression =>
Do_Qualified_Expression;
when A_Record_Aggregate =>
Do_Record_Aggregate;
when An_Extension_Aggregate =>
Do_Extension_Aggregate;
when A_Parameter_Specification | A_Formal_Object_Declaration =>
Do_Parameter_Specification;
when A_Procedure_Declaration |
A_Null_Procedure_Declaration |
A_Procedure_Renaming_Declaration |
An_Entry_Declaration |
A_Generic_Procedure_Declaration |
A_Formal_Procedure_Declaration |
A_Procedure_Body_Stub =>
-- An_Accept_Statement goes through Do_Accept_Statement
Do_Subp_Decl
(Is_Function => False,
Is_Body => False,
Params_Query => Parameter_Profile);
when A_Procedure_Body_Declaration |
An_Entry_Body_Declaration =>
Do_Subp_Decl
(Is_Function => False,
Is_Body => True,
Params_Query => Parameter_Profile);
when An_Access_To_Procedure |
An_Access_To_Protected_Procedure |
An_Anonymous_Access_To_Procedure |
An_Anonymous_Access_To_Protected_Procedure |
A_Formal_Access_To_Procedure |
A_Formal_Access_To_Protected_Procedure =>
Do_Subp_Decl
(Is_Function => False,
Is_Body => False,
Params_Query => Access_To_Subprogram_Parameter_Profile);
when A_Function_Declaration |
An_Expression_Function_Declaration |
A_Function_Renaming_Declaration |
A_Generic_Function_Declaration |
A_Formal_Function_Declaration |
A_Function_Body_Stub =>
Do_Subp_Decl
(Is_Function => True,
Is_Body => False,
Params_Query => Parameter_Profile);
when A_Function_Body_Declaration =>
Do_Subp_Decl
(Is_Function => True,
Is_Body => True,
Params_Query => Parameter_Profile);
when An_Access_To_Function |
An_Access_To_Protected_Function |
An_Anonymous_Access_To_Function |
An_Anonymous_Access_To_Protected_Function |
A_Formal_Access_To_Function |
A_Formal_Access_To_Protected_Function =>
Do_Subp_Decl
(Is_Function => True,
Is_Body => False,
Params_Query => Access_To_Subprogram_Parameter_Profile);
when Flat_List_Kinds =>
Do_List;
when others =>
Do_Others;
end case;
Delete_Last (Tree_Stack); -- pop
end Subtree_To_Ada;
procedure Convert_Tree_To_Ada (Tree : Ada_Tree) is
begin
Append_Line_Break
(Hard => True,
Affects_Comments => True,
Level => 0,
Kind => Not_An_Element,
Template => Name_Empty);
pragma Assert (Check_Whitespace);
Subtree_To_Ada (Tree, Cur_Level => 0, Index_In_Parent => 1);
pragma Debug (Assert_No_Trailing_Blanks (To_W_Str (Out_Buf)));
Append
(Tabs,
Tab_Rec'
(Parent | Tree => null, Mark => Mark (Out_Buf, '$'), others => <>));
-- Append a sentinel tab, whose Position is greater than any actual
-- position. This ensures that as we step through Tabs, there is
-- always one more.
pragma Assert (Is_Empty (Tree_Stack));
Reset (Out_Buf);
pragma Assert (Cur_Indentation = 0);
end Convert_Tree_To_Ada;
procedure Assert_No_Trailing_Blanks (S : W_Str) is
begin
pragma Assert (S'First = 1);
for X in 2 .. S'Last loop
pragma Assert (if S (X) /= ' ' then not Is_Space (S (X)));
if S (X) = NL then
pragma Assert (S (X - 1) /= ' ');
end if;
end loop;
pragma Assert (S (S'Last) = NL);
end Assert_No_Trailing_Blanks;
function Replacements (T : Ada_Template) return Ada_Template;
function Replacements (T : Ada_Template) return Ada_Template is
Temp : W_Str_Access := new W_Str'(W_Str (T));
begin
-- Replacements inserting soft line breaks
Temp := Replace_All (Temp, "? @(~; ~)~", "?[@ (~;@ ~)]~");
Temp := Replace_All (Temp, "? @(~, ~)~", "?[@ (~,@ ~)]~");
Temp := Replace_All (Temp, "? := ~~~", "? :=[@ ~~]~");
Temp := Replace_All (Temp, " renames !", " renames[@ !]");
-- ???Should be a weaker @, at least for function renamings.
Temp := Replace_All (Temp, "? and ~ and ~~", "? and[@ ~ and@ ~]~");
Temp := Replace_All (Temp, " => !", " =>[@ !]");
-- Replacements inserting tabs
Temp := Replace_All (Temp, "=>", "^=>");
Temp :=
Replace_All
(Temp,
"?~, ~~ :? ~~~ !? :=[@ ~~]~",
"?~, ~~ ^:? ~~~ !? ^2:=[@ ~~]~");
Temp :=
Replace_All
(Temp,
"?~, ~~ :? ~~~ constant !? :=[@ ~~]~",
"?~, ~~ ^:? ~~~ constant !? ^2:=[@ ~~]~");
-- This doesn't cover A_Parameter_Specification, which is handled
-- specially by Do_Parameter_Specification.
-- Replacements inserting soft line breaks in comma-separated lists of
-- defining identifiers.
Temp := Replace_All (Temp, "?~, ~~ ^:", "?~,@ ~~ ^:");
-- Note @ without []
-- Replacements for --no-separate-is
if not Options.Separate_Line_For_IS then
Temp := Replace_All (Temp, "@ is", " is");
end if;
-- If the --no-end-id switch was given, do not insert names after "end"
-- during the Convert_Tree_To_Ada pass. Instead, insert them during
-- Insert_Comments_And_Blank_Lines, and only if they are present in the
-- source.
if not Options.End_Id then
Temp := Replace_All (Temp, "end !1", "end");
Temp := Replace_All (Temp, "end !2", "end");
Temp := Replace_All (Temp, "end?1 ~~~", "end");
Temp := Replace_All (Temp, "end?2 ~~~", "end");
Temp := Replace_All (Temp, "end?3 ~~~", "end");
end if;
return Result : constant Ada_Template := Ada_Template (Temp.all) do
Free (Temp);
end return;
end Replacements;
procedure Free is new Unchecked_Deallocation
(Ada_Template, Ada_Template_Ptr);
procedure Replace_One (Kind : Ada_Tree_Kind; From, To : W_Str);
-- Replace From with To in the template for Kind
procedure Replace_One (Kind : Ada_Tree_Kind; From, To : W_Str) is
Temp : Ada_Template_Ptr := Template_Table (Kind);
begin
Template_Table (Kind) :=
new Ada_Template'(Ada_Template
(Must_Replace (W_Str (Temp.all), From, To)));
Free (Temp);
end Replace_One;
procedure Init_Template_Table is
begin
pragma Assert (not Template_Table_Initialized);
Template_Table_Initialized := True;
-- We can't initialize Template_Table with an aggregate, because we
-- refer to the Kind. The following case-within-loop construction may
-- look odd, but it accomplishes two goals: the 'case' requires full
-- coverage, so the items left null are done so explicitly, and the
-- 'for' provides the Kind value to each sub-case that needs it.
-- The 'case' we're talking about is in Template_For_Kind.
for Kind in Ada_Tree_Kind loop
declare
Temp : Ada_Template_Ptr := Template_For_Kind (Kind);
begin
if Temp = null then
Template_Table (Kind) := null;
else
Template_Table (Kind) :=
new Ada_Template'
(Munge_Template (Replacements (Temp.all), Kind));
Free (Temp);
end if;
end;
end loop;
-- Some more-specific replacements
-- For Separate_Line_For_THEN_and_LOOP, we want a hard line break before
-- "then" and "loop".
if Options.Separate_Line_For_THEN_and_LOOP then
Replace_One (An_If_Path, "@ then$", "$then$");
Replace_One (An_Elsif_Path, "@ then$", "$then$");
Replace_One (A_While_Loop_Statement, "@ loop$", "$loop$");
Replace_One (A_For_Loop_Statement, "@ loop$", "$loop$");
-- For No_Separate_Line_For_THEN_and_LOOP, we remove the soft line break
-- before "then" and "loop".
elsif Options.No_Separate_Line_For_THEN_and_LOOP then
Replace_One (An_If_Path, "@ then$", " then$");
Replace_One (An_Elsif_Path, "@ then$", " then$");
Replace_One (A_While_Loop_Statement, "@ loop$", " loop$");
Replace_One (A_For_Loop_Statement, "@ loop$", " loop$");
end if;
-- Now do some validity checking on the templates
for Kind in Ada_Tree_Kind loop
declare
T : constant Ada_Template_Ptr := Template_Table (Kind);
begin
if T /= null then
declare
subtype Constrained_Query_Count is
Query_Count range 0 .. Num_Queries (Kind);
Subtree_Count : Query_Count := 0;
begin
for J in T'Range loop
case T (J) is
when '!' | '?' =>
if J < T'Last and then T (J + 1) in '1' .. '9' then
pragma Assert
(Query_Index (Char_To_Digit (T (J + 1))) in
Constrained_Query_Count);
else
Subtree_Count := Subtree_Count + 1;
end if;
-- ??? "{" is always preceded by "$"; we might want a
-- short-hand for "${".
when '{' =>
pragma Assert (T (J - 1) = '$');
when others =>
null;
end case;
end loop;
if Subtree_Count /= Constrained_Query_Count'Last then
raise Program_Error
with "Wrong Subtree_Count: " & Kind'Img;
end if;
end;
end if;
end;
end loop;
if Debug_Mode then
Put_Ada_Templates;
end if;
end Init_Template_Table;
procedure Init_Pp_Off_And_On is
pragma Warnings (Off);
-- Suppress warning about useless use clause
use type GNAT.OS_Lib.String_Access;
pragma Warnings (On);
begin
if Options.Pp_Off_String /= null then
pragma Assert (Options.Pp_Off_String.all /= "");
Pp_Off_On_Delimiters.Off := new W_Str'
("--" & To_Wide_String (Options.Pp_Off_String.all));
end if;
if Options.Pp_On_String /= null then
pragma Assert (Options.Pp_On_String.all /= "");
Pp_Off_On_Delimiters.On := new W_Str'
("--" & To_Wide_String (Options.Pp_On_String.all));
end if;
end Init_Pp_Off_And_On;
use Scanner;
-- use all type Token_Vector;
-- Start of processing for Tree_To_Ada
begin
if Debug_Mode then
ASIS_UL.Dbg_Out.Output_Enabled := True;
end if;
if not Template_Table_Initialized then
Init_Template_Table;
Init_Pp_Off_And_On;
end if;
-- Note that if we're processing multiple files, we will get here multiple
-- times, so we need to clear out data structures left over from last time.
pragma Assert (Cur_Indentation = 0);
Clear (All_Line_Breaks);
Clear (Tabs);
Get_Tokens (Src_Buf, Src_Tokens, Pp_Off_On_Delimiters);
if Debug_Mode then
Dbg_Out.Put ("Src_Tokens:\n");
Put_Tokens (Src_Tokens);
Dbg_Out.Put ("end Src_Tokens:\n");
end if;
Clear (Out_Buf);
-- If --comments-only was specified, format the comments and quit
if Options.Comments_Only then
Do_Comments_Only (Lines_Data, Src_Buf, Options);
else
-- Otherwise, convert the tree to text, and
-- then run all the text-based passes.
Convert_Tree_To_Ada (Root);
Post_Tree_Phases
(Lines_Data, Get_Name_String (Root.Source_File), Src_Buf, Options);
end if;
-- Finally, print out the result to Current_Output
declare
Out_Vec : constant Char_Vector := Remove_Extra_Line_Breaks;
begin
Write_Out_Buf (Out_Vec);
end;
exception
-- If we got an error, don't produce output
when Common.Fatal_Error =>
raise;
when X : others =>
-- In order to avoid damaging the user's source code, if there is a bug
-- (like a token mismatch in Final_Check), we avoid writing the output
-- file in Do_Diff mode; otherwise, we write the input to the output
-- unchanged. This happens only in production builds.
--
-- Raise_Token_Mismatch includes the file name and source location in
-- the message; include that if available.
declare
use Ada.Exceptions;
Loc : constant String :=
(if Exception_Identity (X) = Token_Mismatch'Identity
then Exception_Message (X) else "");
begin
Output.Error
(Source_Name & ":" & Loc &
": pretty-printing failed; unable to format");
end;
if Enable_Token_Mismatch then
raise;
else
if Do_Diff then
Output_Written := False;
else
if not At_Beginning (Src_Buf) then
while not At_End (Src_Buf) loop
Move_Forward (Src_Buf);
end loop;
Reset (Src_Buf);
end if;
Write_Src_Buf;
end if;
end if;
end Tree_To_Ada;
|