| 1 | // RUN: %check_clang_tidy %s modernize-shrink-to-fit %t |
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| 2 | |
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| 3 | namespace std { |
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| 4 | template <typename T> struct vector { void swap(vector &other); }; |
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| 5 | } |
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| 6 | |
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| 7 | void f() { |
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| 8 | std::vector<int> v; |
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| 9 | |
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| 10 | std::vector<int>(v).swap(other&: v); |
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| 11 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should be used to reduce the capacity of a shrinkable container [modernize-shrink-to-fit] |
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| 12 | // CHECK-FIXES: {{^ }}v.shrink_to_fit();{{$}} |
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| 13 | |
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| 14 | std::vector<int> &vref = v; |
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| 15 | std::vector<int>(vref).swap(other&: vref); |
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| 16 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 17 | // CHECK-FIXES: {{^ }}vref.shrink_to_fit();{{$}} |
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| 18 | |
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| 19 | std::vector<int> *vptr = &v; |
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| 20 | std::vector<int>(*vptr).swap(other&: *vptr); |
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| 21 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 22 | // CHECK-FIXES: {{^ }}vptr->shrink_to_fit();{{$}} |
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| 23 | } |
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| 24 | |
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| 25 | struct X { |
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| 26 | std::vector<int> v; |
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| 27 | void f() { |
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| 28 | std::vector<int>(v).swap(other&: v); |
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| 29 | // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: the shrink_to_fit method should |
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| 30 | // CHECK-FIXES: {{^ }}v.shrink_to_fit();{{$}} |
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| 31 | |
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| 32 | std::vector<int> *vptr = &v; |
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| 33 | std::vector<int>(*vptr).swap(other&: *vptr); |
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| 34 | // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: the shrink_to_fit method should |
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| 35 | // CHECK-FIXES: {{^ }}vptr->shrink_to_fit();{{$}} |
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| 36 | } |
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| 37 | }; |
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| 38 | |
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| 39 | template <typename T> void g() { |
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| 40 | std::vector<int> v; |
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| 41 | std::vector<int>(v).swap(other&: v); |
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| 42 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 43 | // CHECK-FIXES: {{^ }}v.shrink_to_fit();{{$}} |
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| 44 | |
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| 45 | std::vector<T> v2; |
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| 46 | std::vector<T>(v2).swap(v2); |
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| 47 | // CHECK-FIXES: {{^ }}std::vector<T>(v2).swap(v2);{{$}} |
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| 48 | } |
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| 49 | |
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| 50 | template <typename T> void g2() { |
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| 51 | std::vector<int> v; |
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| 52 | std::vector<int>(v).swap(other&: v); |
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| 53 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 54 | // CHECK-FIXES: {{^ }}v.shrink_to_fit();{{$}} |
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| 55 | |
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| 56 | T v3; |
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| 57 | T(v3).swap(v3); |
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| 58 | // CHECK-FIXES: {{^ }}T(v3).swap(v3);{{$}} |
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| 59 | } |
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| 60 | |
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| 61 | #define COPY_AND_SWAP_INT_VEC(x) std::vector<int>(x).swap(x) |
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| 62 | // CHECK-FIXES: #define COPY_AND_SWAP_INT_VEC(x) std::vector<int>(x).swap(x) |
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| 63 | |
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| 64 | void h() { |
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| 65 | g<int>(); |
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| 66 | g<double>(); |
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| 67 | g<bool>(); |
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| 68 | g2<std::vector<int>>(); |
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| 69 | std::vector<int> v; |
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| 70 | COPY_AND_SWAP_INT_VEC(v); |
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| 71 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 72 | // CHECK-FIXES: {{^ }}COPY_AND_SWAP_INT_VEC(v);{{$}} |
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| 73 | } |
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| 74 | |
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| 75 | void PR38315() { |
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| 76 | typedef std::vector<int> Vector; |
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| 77 | Vector v; |
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| 78 | Vector(v).swap(other&: v); |
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| 79 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 80 | // CHECK-FIXES: {{^ }}v.shrink_to_fit();{{$}} |
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| 81 | |
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| 82 | using Vector2 = std::vector<int>; |
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| 83 | Vector2 v2; |
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| 84 | Vector2(v2).swap(other&: v2); |
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| 85 | // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the shrink_to_fit method should |
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| 86 | // CHECK-FIXES: {{^ }}v2.shrink_to_fit();{{$}} |
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| 87 | } |
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| 88 | |
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