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
|
-- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries
--
-- SmartEiffel is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License, as published by the
-- Free Software Foundation; either version 2, or (at your option) any later
-- version.
-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT
-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 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 along with SmartEiffel; see the file COPYING. If not, write to
-- the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-- MA 02111-1307, USA.
--
-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.
-- - University of Nancy 1 - FRANCE
-- Copyright(C) 2003: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne
-- - University of Nancy 2 - FRANCE
--
-- Dominique COLNET, Suzanne COLLIN, Olivier ZENDRA,
-- Philippe RIBET, Cyril ADRIAN
--
-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
--
class WHEN_ITEM_1
--
-- To store a single value of a when clause in an inspect instruction.
--
-- Exemple :
-- inspect ...
-- when foo, bar, then ...
--
inherit WHEN_ITEM
creation {E_WHEN, WHEN_ITEM_1} make
feature
expression: EXPRESSION
expression_value: INTEGER
start_position: POSITION is
do
Result := expression.start_position
end
feature {E_WHEN}
simplify_2(index: INTEGER; cc: CHARACTER_CONSTANT; ic: INTEGER_CONSTANT) is
local
cc2: CHARACTER_CONSTANT; ic2: INTEGER_CONSTANT
do
expression := expression.simplify_2
if cc /= Void then
cc2 ?= expression
if cc2 /= Void then
if cc.value = cc2.value then
e_when.always_selected(index)
end
end
elseif ic /= Void then
ic2 ?= expression
if ic2 /= Void then
if ic.value_memory = ic2.value_memory then
e_when.always_selected(index)
end
end
end
end
verify_scoop(allowed: FORMAL_ARG_LIST) is
local
dummy: BOOLEAN
do
if expression /= Void then
dummy := expression.verify_scoop(allowed)
end
end
feature {E_WHEN, WHEN_ITEM_1}
to_runnable_integer(ew: like e_when): like Current is
local
ct: E_TYPE; e: like expression
do
if e_when = Void then
e_when := ew
ct := smart_eiffel.top_rf.current_type
e := expression.to_runnable(ct)
if e /= Void and then e.result_type.is_integer then
expression := e
expression_value := expression.to_integer_or_error
e_when.add_when_item_1(Current)
else
error(expression.start_position,fz_biv)
end
Result := Current
else
!!Result.make(expression)
Result := Result.to_runnable_integer(ew)
end
end
to_runnable_character(ew: like e_when): like Current is
local
ct: E_TYPE; e: like expression
do
if e_when = Void then
e_when := ew
ct := smart_eiffel.top_rf.current_type
e := expression.to_runnable(ct)
if e /= Void and then e.result_type.is_character then
expression := e
expression_value := expression.to_integer_or_error
e_when.add_when_item_1(Current)
else
error(expression.start_position,fz_bcv)
end
Result := Current
else
!!Result.make(expression)
Result := Result.to_runnable_character(ew)
end
end
to_runnable_string(ew: like e_when): like Current is
local
ct: E_TYPE; e: like expression;
do
if e_when = Void then
e_when := ew;
ct := smart_eiffel.top_rf.current_type;
e := expression.to_runnable(ct);
if e /= Void and then e.is_manifest_string then
expression := e;
e_when.add_when_item_1(Current);
-- `expression_value' was computed before by
-- MANIFEST_STRING_INSPECTOR calling `set_expression_value'
else
error(expression.start_position,fz_biv);
end;
Result := Current;
else
!!Result.make(expression);
Result := Result.to_runnable_string(ew);
end;
end;
pretty_print is
do
expression.pretty_print
end
feature {MANIFEST_STRING_INSPECTOR}
set_expression_value(ev: INTEGER) is
do
expression_value := ev;
end;
feature {WHEN_ITEM_1_VISITOR}
accept(visitor: WHEN_ITEM_1_VISITOR) is
do
visitor.visit_when_item_1(Current)
end
feature {NONE}
make(v: like expression) is
require
v /= Void
do
expression := v
ensure
expression = v
end
end -- WHEN_ITEM_1
|
