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1 error: use Option::map_or instead of an if let/else
2 --> $DIR/option_if_let_else.rs:7:5
3 |
4 LL | / if let Some(x) = string {
5 LL | | (true, x)
6 LL | | } else {
7 LL | | (false, "hello")
8 LL | | }
9 | |_____^ help: try: `string.map_or((false, "hello"), |x| (true, x))`
10 |
11 = note: `-D clippy::option-if-let-else` implied by `-D warnings`
12
13 error: use Option::map_or instead of an if let/else
14 --> $DIR/option_if_let_else.rs:17:12
15 |
16 LL | } else if let Some(x) = string {
17 | ____________^
18 LL | | Some((true, x))
19 LL | | } else {
20 LL | | Some((false, ""))
21 LL | | }
22 | |_____^ help: try: `{ string.map_or(Some((false, "")), |x| Some((true, x))) }`
23
24 error: use Option::map_or instead of an if let/else
25 --> $DIR/option_if_let_else.rs:25:13
26 |
27 LL | let _ = if let Some(s) = *string { s.len() } else { 0 };
28 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `string.map_or(0, |s| s.len())`
29
30 error: use Option::map_or instead of an if let/else
31 --> $DIR/option_if_let_else.rs:26:13
32 |
33 LL | let _ = if let Some(s) = &num { s } else { &0 };
34 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `num.as_ref().map_or(&0, |s| s)`
35
36 error: use Option::map_or instead of an if let/else
37 --> $DIR/option_if_let_else.rs:27:13
38 |
39 LL | let _ = if let Some(s) = &mut num {
40 | _____________^
41 LL | | *s += 1;
42 LL | | s
43 LL | | } else {
44 LL | | &mut 0
45 LL | | };
46 | |_____^
47 |
48 help: try
49 |
50 LL | let _ = num.as_mut().map_or(&mut 0, |s| {
51 LL | *s += 1;
52 LL | s
53 LL | });
54 |
55
56 error: use Option::map_or instead of an if let/else
57 --> $DIR/option_if_let_else.rs:33:13
58 |
59 LL | let _ = if let Some(ref s) = num { s } else { &0 };
60 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `num.as_ref().map_or(&0, |s| s)`
61
62 error: use Option::map_or instead of an if let/else
63 --> $DIR/option_if_let_else.rs:34:13
64 |
65 LL | let _ = if let Some(mut s) = num {
66 | _____________^
67 LL | | s += 1;
68 LL | | s
69 LL | | } else {
70 LL | | 0
71 LL | | };
72 | |_____^
73 |
74 help: try
75 |
76 LL | let _ = num.map_or(0, |mut s| {
77 LL | s += 1;
78 LL | s
79 LL | });
80 |
81
82 error: use Option::map_or instead of an if let/else
83 --> $DIR/option_if_let_else.rs:40:13
84 |
85 LL | let _ = if let Some(ref mut s) = num {
86 | _____________^
87 LL | | *s += 1;
88 LL | | s
89 LL | | } else {
90 LL | | &mut 0
91 LL | | };
92 | |_____^
93 |
94 help: try
95 |
96 LL | let _ = num.as_mut().map_or(&mut 0, |s| {
97 LL | *s += 1;
98 LL | s
99 LL | });
100 |
101
102 error: use Option::map_or instead of an if let/else
103 --> $DIR/option_if_let_else.rs:49:5
104 |
105 LL | / if let Some(x) = arg {
106 LL | | let y = x * x;
107 LL | | y * y
108 LL | | } else {
109 LL | | 13
110 LL | | }
111 | |_____^
112 |
113 help: try
114 |
115 LL | arg.map_or(13, |x| {
116 LL | let y = x * x;
117 LL | y * y
118 LL | })
119 |
120
121 error: use Option::map_or_else instead of an if let/else
122 --> $DIR/option_if_let_else.rs:62:13
123 |
124 LL | let _ = if let Some(x) = arg {
125 | _____________^
126 LL | | x
127 LL | | } else {
128 LL | | // map_or_else must be suggested
129 LL | | side_effect()
130 LL | | };
131 | |_____^ help: try: `arg.map_or_else(|| side_effect(), |x| x)`
132
133 error: use Option::map_or_else instead of an if let/else
134 --> $DIR/option_if_let_else.rs:71:13
135 |
136 LL | let _ = if let Some(x) = arg {
137 | _____________^
138 LL | | x * x * x * x
139 LL | | } else {
140 LL | | let mut y = 1;
141 ... |
142 LL | | y
143 LL | | };
144 | |_____^
145 |
146 help: try
147 |
148 LL | let _ = arg.map_or_else(|| {
149 LL | let mut y = 1;
150 LL | y = (y + 2 / y) / 2;
151 LL | y = (y + 2 / y) / 2;
152 LL | y
153 LL | }, |x| x * x * x * x);
154 |
155
156 error: use Option::map_or instead of an if let/else
157 --> $DIR/option_if_let_else.rs:100:13
158 |
159 LL | let _ = if let Some(x) = optional { x + 2 } else { 5 };
160 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `optional.map_or(5, |x| x + 2)`
161
162 error: aborting due to 12 previous errors
163