1 error: called `map(f)` on an Option value where `f` is a unit function
2 --> $DIR/map_unit_fn.rs:33:5
4 33 | x.field.map(do_nothing);
5 | ^^^^^^^^^^^^^^^^^^^^^^^-
7 | help: try this: `if let Some(x_field) = x.field { do_nothing(...) }`
9 = note: `-D option-map-unit-fn` implied by `-D warnings`
11 error: called `map(f)` on an Option value where `f` is a unit function
12 --> $DIR/map_unit_fn.rs:35:5
14 35 | x.field.map(do_nothing);
15 | ^^^^^^^^^^^^^^^^^^^^^^^-
17 | help: try this: `if let Some(x_field) = x.field { do_nothing(...) }`
19 error: called `map(f)` on an Option value where `f` is a unit function
20 --> $DIR/map_unit_fn.rs:37:5
22 37 | x.field.map(diverge);
23 | ^^^^^^^^^^^^^^^^^^^^-
25 | help: try this: `if let Some(x_field) = x.field { diverge(...) }`
27 error: called `map(f)` on an Option value where `f` is a unit closure
28 --> $DIR/map_unit_fn.rs:43:5
30 43 | x.field.map(|value| x.do_option_nothing(value + captured));
31 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
33 | help: try this: `if let Some(value) = x.field { x.do_option_nothing(value + captured) }`
35 error: called `map(f)` on an Option value where `f` is a unit closure
36 --> $DIR/map_unit_fn.rs:45:5
38 45 | x.field.map(|value| { x.do_option_plus_one(value + captured); });
39 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
41 | help: try this: `if let Some(value) = x.field { x.do_option_plus_one(value + captured); }`
43 error: called `map(f)` on an Option value where `f` is a unit closure
44 --> $DIR/map_unit_fn.rs:48:5
46 48 | x.field.map(|value| do_nothing(value + captured));
47 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
49 | help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
51 error: called `map(f)` on an Option value where `f` is a unit closure
52 --> $DIR/map_unit_fn.rs:50:5
54 50 | x.field.map(|value| { do_nothing(value + captured) });
55 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
57 | help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
59 error: called `map(f)` on an Option value where `f` is a unit closure
60 --> $DIR/map_unit_fn.rs:52:5
62 52 | x.field.map(|value| { do_nothing(value + captured); });
63 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
65 | help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }`
67 error: called `map(f)` on an Option value where `f` is a unit closure
68 --> $DIR/map_unit_fn.rs:54:5
70 54 | x.field.map(|value| { { do_nothing(value + captured); } });
71 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
73 | help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }`
75 error: called `map(f)` on an Option value where `f` is a unit closure
76 --> $DIR/map_unit_fn.rs:57:5
78 57 | x.field.map(|value| diverge(value + captured));
79 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
81 | help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
83 error: called `map(f)` on an Option value where `f` is a unit closure
84 --> $DIR/map_unit_fn.rs:59:5
86 59 | x.field.map(|value| { diverge(value + captured) });
87 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
89 | help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
91 error: called `map(f)` on an Option value where `f` is a unit closure
92 --> $DIR/map_unit_fn.rs:61:5
94 61 | x.field.map(|value| { diverge(value + captured); });
95 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
97 | help: try this: `if let Some(value) = x.field { diverge(value + captured); }`
99 error: called `map(f)` on an Option value where `f` is a unit closure
100 --> $DIR/map_unit_fn.rs:63:5
102 63 | x.field.map(|value| { { diverge(value + captured); } });
103 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
105 | help: try this: `if let Some(value) = x.field { diverge(value + captured); }`
107 error: called `map(f)` on an Option value where `f` is a unit closure
108 --> $DIR/map_unit_fn.rs:68:5
110 68 | x.field.map(|value| { let y = plus_one(value + captured); });
111 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
113 | help: try this: `if let Some(value) = x.field { let y = plus_one(value + captured); }`
115 error: called `map(f)` on an Option value where `f` is a unit closure
116 --> $DIR/map_unit_fn.rs:70:5
118 70 | x.field.map(|value| { plus_one(value + captured); });
119 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
121 | help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
123 error: called `map(f)` on an Option value where `f` is a unit closure
124 --> $DIR/map_unit_fn.rs:72:5
126 72 | x.field.map(|value| { { plus_one(value + captured); } });
127 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
129 | help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
131 error: called `map(f)` on an Option value where `f` is a unit closure
132 --> $DIR/map_unit_fn.rs:75:5
134 75 | x.field.map(|ref value| { do_nothing(value + captured) });
135 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
137 | help: try this: `if let Some(ref value) = x.field { do_nothing(value + captured) }`
139 error: called `map(f)` on an Option value where `f` is a unit closure
140 --> $DIR/map_unit_fn.rs:78:5
142 78 | x.field.map(|value| { do_nothing(value); do_nothing(value) });
143 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
145 | help: try this: `if let Some(value) = x.field { ... }`
147 error: called `map(f)` on an Option value where `f` is a unit closure
148 --> $DIR/map_unit_fn.rs:80:5
150 80 | x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
151 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
153 | help: try this: `if let Some(value) = x.field { ... }`
155 error: called `map(f)` on an Option value where `f` is a unit closure
156 --> $DIR/map_unit_fn.rs:84:5
158 84 | x.field.map(|value| {
162 85 | || do_nothing(value);
163 86 | || do_nothing(value)
165 | ||______^- help: try this: `if let Some(value) = x.field { ... }`
169 error: called `map(f)` on an Option value where `f` is a unit closure
170 --> $DIR/map_unit_fn.rs:88:5
172 88 | x.field.map(|value| { do_nothing(value); do_nothing(value); });
173 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
175 | help: try this: `if let Some(value) = x.field { ... }`
177 error: called `map(f)` on an Option value where `f` is a unit function
178 --> $DIR/map_unit_fn.rs:91:5
180 91 | Some(42).map(diverge);
181 | ^^^^^^^^^^^^^^^^^^^^^-
183 | help: try this: `if let Some(_) = Some(42) { diverge(...) }`
185 error: called `map(f)` on an Option value where `f` is a unit function
186 --> $DIR/map_unit_fn.rs:92:5
188 92 | "12".parse::<i32>().ok().map(diverge);
189 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
191 | help: try this: `if let Some(_) = "12".parse::<i32>().ok() { diverge(...) }`
193 error: called `map(f)` on an Option value where `f` is a unit function
194 --> $DIR/map_unit_fn.rs:93:5
196 93 | Some(plus_one(1)).map(do_nothing);
197 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
199 | help: try this: `if let Some(_) = Some(plus_one(1)) { do_nothing(...) }`
201 error: called `map(f)` on an Option value where `f` is a unit function
202 --> $DIR/map_unit_fn.rs:97:5
204 97 | y.map(do_nothing);
207 | help: try this: `if let Some(_y) = y { do_nothing(...) }`
209 error: aborting due to 25 previous errors