5fa04bc3cd
Instead of searching for all the successive expressions after a vector allocation, check only the first expression. This is done to minimize the amount of false positives of the lint.
71 lines
2.8 KiB
Text
71 lines
2.8 KiB
Text
error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:23:5
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22 | let mut vec1 = Vec::with_capacity(len);
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| ----------------------- help: consider replace allocation with: `vec![0; len]`
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23 | vec1.extend(repeat(0).take(len));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::slow-vector-initialization` implied by `-D warnings`
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:27:5
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26 | let mut vec2 = Vec::with_capacity(len - 10);
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| ---------------------------- help: consider replace allocation with: `vec![0; len - 10]`
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27 | vec2.extend(repeat(0).take(len - 10));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:41:5
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40 | let mut resized_vec = Vec::with_capacity(30);
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| ---------------------- help: consider replace allocation with: `vec![0; 30]`
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41 | resized_vec.resize(30, 0);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:44:5
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43 | let mut extend_vec = Vec::with_capacity(30);
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| ---------------------- help: consider replace allocation with: `vec![0; 30]`
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44 | extend_vec.extend(repeat(0).take(30));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:51:5
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50 | let mut vec1 = Vec::with_capacity(len);
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| ----------------------- help: consider replace allocation with: `vec![0; len]`
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51 | vec1.resize(len, 0);
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| ^^^^^^^^^^^^^^^^^^^
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:59:5
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58 | let mut vec3 = Vec::with_capacity(len - 10);
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| ---------------------------- help: consider replace allocation with: `vec![0; len - 10]`
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59 | vec3.resize(len - 10, 0);
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: slow zero-filling initialization
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--> $DIR/slow_vector_initialization.rs:63:5
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62 | vec1 = Vec::with_capacity(10);
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| ---------------------- help: consider replace allocation with: `vec![0; 10]`
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63 | vec1.resize(10, 0);
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| ^^^^^^^^^^^^^^^^^^
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error: unsafe vector initialization
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--> $DIR/slow_vector_initialization.rs:70:9
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67 | let mut unsafe_vec: Vec<u8> = Vec::with_capacity(200);
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| ----------------------- help: consider replace allocation with: `vec![0; 200]`
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...
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70 | unsafe_vec.set_len(200);
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: #[deny(clippy::unsafe_vector_initialization)] on by default
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error: aborting due to 8 previous errors
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