whisperity updated this revision to Diff 339533.
whisperity edited the summary of this revision.
whisperity added a comment.
- **NFC** Fix lint of header guard nomenclature
- **NFC** Tear out obsolete `LLVM_DEBUG` calls from the implementation
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D20689/new/
https://reviews.llvm.org/D20689
Files:
clang-tools-extra/clang-tidy/readability/CMakeLists.txt
clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp
clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.cpp
clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.h
clang-tools-extra/docs/ReleaseNotes.rst
clang-tools-extra/docs/clang-tidy/checks/list.rst
clang-tools-extra/docs/clang-tidy/checks/readability-suspicious-call-argument.rst
clang-tools-extra/test/clang-tidy/checkers/readability-suspicious-call-argument.cpp
Index: clang-tools-extra/test/clang-tidy/checkers/readability-suspicious-call-argument.cpp
===================================================================
--- /dev/null
+++ clang-tools-extra/test/clang-tidy/checkers/readability-suspicious-call-argument.cpp
@@ -0,0 +1,477 @@
+// RUN: %check_clang_tidy %s readability-suspicious-call-argument %t -- -- -std=c++11
+
+void foo_1(int aaaaaa, int bbbbbb) {}
+
+void foo_2(int source, int aaaaaa) {}
+
+void foo_3(int valToRet, int aaaaaa) {}
+
+void foo_4(int pointer, int aaaaaa) {}
+
+void foo_5(int aaaaaa, int bbbbbb, int cccccc, ...) {}
+
+void foo_6(const int dddddd, bool &eeeeee) {}
+
+void foo_7(int aaaaaa, int bbbbbb, int cccccc, int ffffff = 7) {}
+
+void foo_8(int frobble1, int frobble2) {}
+
+// Test functions for convertible argument--parameter types.
+void fun(const int &m);
+void fun2() {
+ int m = 3;
+ fun(m);
+}
+
+// Test cases for parameters of const reference and value.
+void value_const_reference(int llllll, const int &kkkkkk);
+
+void const_ref_value_swapped() {
+ const int &kkkkkk = 42;
+ const int &llllll = 42;
+ value_const_reference(kkkkkk, llllll);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'kkkkkk' (passed to 'llllll') looks like it might be swapped with the 2nd, 'llllll' (passed to 'kkkkkk') [readability-suspicious-call-argument]
+ // CHECK-MESSAGES: :[[@LINE-7]]:6: note: in the call to 'value_const_reference', declared here
+}
+
+// Const, non const references.
+void const_nonconst_parameters(const int &mmmmmm, int &nnnnnn);
+
+void const_nonconst_swap1() {
+ const int &nnnnnn = 42;
+ int mmmmmm;
+ // Do not check, because non-const reference parameter cannot bind to const reference argument.
+ const_nonconst_parameters(nnnnnn, mmmmmm);
+}
+
+void const_nonconst_swap3() {
+ const int nnnnnn = 42;
+ int m = 42;
+ int &mmmmmm = m;
+ // Do not check, const int does not bind to non const reference.
+ const_nonconst_parameters(nnnnnn, mmmmmm);
+}
+
+void const_nonconst_swap2() {
+ int nnnnnn;
+ int mmmmmm;
+ // Check for swapped arguments. (Both arguments are non-const.)
+ const_nonconst_parameters(nnnnnn, mmmmmm);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'nnnnnn' (passed to 'mmmmmm') looks like it might be swapped with the 2nd, 'mmmmmm' (passed to 'nnnnnn')
+}
+
+void const_nonconst_pointers(const int *mmmmmm, int *nnnnnn);
+void const_nonconst_pointers2(const int *mmmmmm, const int *nnnnnn);
+
+void const_nonconst_pointers_swapped() {
+ int *mmmmmm;
+ const int *nnnnnn;
+ const_nonconst_pointers(nnnnnn, mmmmmm);
+}
+
+void const_nonconst_pointers_swapped2() {
+ const int *mmmmmm;
+ int *nnnnnn;
+ const_nonconst_pointers2(nnnnnn, mmmmmm);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'nnnnnn' (passed to 'mmmmmm') looks like it might be swapped with the 2nd, 'mmmmmm' (passed to 'nnnnnn')
+}
+
+// Test cases for pointers and arrays.
+void pointer_array_parameters(
+ int *pppppp, int qqqqqq[4]);
+
+void pointer_array_swap() {
+ int qqqqqq[5];
+ int *pppppp;
+ // Check for swapped arguments. An array implicitly converts to a pointer.
+ pointer_array_parameters(qqqqqq, pppppp);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'qqqqqq' (passed to 'pppppp') looks like it might be swapped with the 2nd, 'pppppp' (passed to 'qqqqqq')
+}
+
+// Test cases for multilevel pointers.
+void multilevel_pointer_parameters(int *const **pppppp,
+ const int *const *volatile const *qqqqqq);
+void multilevel_pointer_parameters2(
+ char *****nnnnnn, char *volatile *const *const *const *const &mmmmmm);
+
+typedef float T;
+typedef T *S;
+typedef S *const volatile R;
+typedef R *Q;
+typedef Q *P;
+typedef P *O;
+void multilevel_pointer_parameters3(float **const volatile ***rrrrrr, O &ssssss);
+
+void multilevel_pointer_swap() {
+ int *const **qqqqqq;
+ int *const **pppppp;
+ multilevel_pointer_parameters(qqqqqq, pppppp);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'qqqqqq' (passed to 'pppppp') looks like it might be swapped with the 2nd, 'pppppp' (passed to 'qqqqqq')
+
+ char *****mmmmmm;
+ char *****nnnnnn;
+ multilevel_pointer_parameters2(mmmmmm, nnnnnn);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'mmmmmm' (passed to 'nnnnnn') looks like it might be swapped with the 2nd, 'nnnnnn' (passed to 'mmmmmm')
+
+ float **const volatile ***rrrrrr;
+ float **const volatile ***ssssss;
+ multilevel_pointer_parameters3(ssssss, rrrrrr);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'ssssss' (passed to 'rrrrrr') looks like it might be swapped with the 2nd, 'rrrrrr' (passed to 'ssssss')
+}
+
+void multilevel_pointer_parameters4(char ****pppppp,
+ char *const volatile **const *qqqqqq);
+void multilevel_pointer_parameters5(
+ bool *****nnnnnn, bool *volatile *const *const *const *&mmmmmm);
+void multilevel_pointer_parameters6(double **llllll, char **&kkkkkk);
+void multilevel_pointer_parameters7(const volatile int ***iiiiii,
+ const int *const *const *jjjjjj);
+
+void multilevel_pointer_swap3() {
+ char ****qqqqqq;
+ char *const volatile **const *pppppp;
+ // Do not check.
+ multilevel_pointer_parameters4(qqqqqq, pppppp);
+
+ bool *****mmmmmm;
+ bool *volatile *const *const *const *nnnnnn;
+ // Do not check.
+ multilevel_pointer_parameters5(mmmmmm, nnnnnn);
+
+ double **kkkkkk;
+ char **llllll;
+ multilevel_pointer_parameters6(kkkkkk, llllll);
+
+ const volatile int ***jjjjjj;
+ const int *const *const *iiiiii;
+ multilevel_pointer_parameters7(jjjjjj, iiiiii);
+}
+
+// Test cases for multidimesional arrays.
+void multilevel_array_parameters(int pppppp[2][2][2], const int qqqqqq[][2][2]);
+
+void multilevel_array_parameters2(int (*mmmmmm)[2][2], int nnnnnn[9][2][23]);
+
+void multilevel_array_parameters3(int (*eeeeee)[2][2], int (&ffffff)[1][2][2]);
+
+void multilevel_array_parameters4(int (*llllll)[2][2], int kkkkkk[2][2]);
+
+void multilevel_array_parameters5(int iiiiii[2][2], char jjjjjj[2][2]);
+
+void multilevel_array_parameters6(int (*bbbbbb)[2][2], int cccccc[1][2][2]);
+
+void multilevel_array_swap() {
+ int qqqqqq[1][2][2];
+ int pppppp[][2][2] = {{{1, 2}, {1, 2}}, {{1, 2}, {1, 2}}}; // int [2][2][2]
+ multilevel_array_parameters(qqqqqq, pppppp);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'qqqqqq' (passed to 'pppppp') looks like it might be swapped with the 2nd, 'pppppp' (passed to 'qqqqqq')
+
+ int(*nnnnnn)[2][2];
+ int mmmmmm[9][2][23];
+ // Do not check, array sizes has to match in every dimension, except the first.
+ multilevel_array_parameters2(nnnnnn, mmmmmm);
+
+ int ffffff[][2][2] = {{{1, 2}, {1, 2}}, {{1, 2}, {1, 2}}}; // int [2][2][2]
+ int eeeeee[1][2][2] = {{{1, 2}, {1, 2}}}; // int [1][2][2]
+ // Do not check, for array references, size has to match in every dimension.
+ multilevel_array_parameters3(ffffff, eeeeee);
+
+ int kkkkkk[2][2][2];
+ int(*llllll)[2];
+ // Do not check, argument dimensions differ.
+ multilevel_array_parameters4(kkkkkk, llllll);
+
+ int jjjjjj[2][2];
+ char iiiiii[2][2];
+ // Do not check, array element types differ.
+ multilevel_array_parameters5(jjjjjj, iiiiii);
+
+ int t[][2][2] = {{{1, 2}, {1, 2}}, {{1, 2}, {1, 2}}}; // int [2][2][2]
+ int(*cccccc)[2][2] = t; // int (*)[2][2]
+ int bbbbbb[][2][2] = {{{1, 2}, {1, 2}}}; // int [1][2][2]
+ multilevel_array_parameters6(cccccc, bbbbbb);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'bbbbbb') looks like it might be swapped with the 2nd, 'bbbbbb' (passed to 'cccccc')
+}
+
+void multilevel_array_swap2() {
+ int qqqqqq[2][2][2];
+ const int pppppp[][2][2] = {{{1, 2}, {1, 2}}, {{1, 2}, {1, 2}}};
+ // Do not check, pppppp is const and cannot bind to an array with nonconst elements.
+ multilevel_array_parameters(qqqqqq, pppppp);
+}
+
+// Complex test case.
+void multilevel_pointer_array_parameters(const int(*const (*volatile const (*const (*const (*const &aaaaaa)[1])[32])[4])[3][2][2]), const int(*const (*volatile const (*const (*const (*&bbbbbb)[1])[32])[4])[3][2][2]));
+
+void multilevel_pointer_array_swap() {
+ const int(
+ *const(*volatile const(*const(*const(*aaaaaa)[1])[32])[4])[3][2][2]);
+ const int(
+ *const(*volatile const(*const(*const(*bbbbbb)[1])[32])[4])[3][2][2]);
+ multilevel_pointer_array_parameters(bbbbbb, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'bbbbbb' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaaaa' (passed to 'bbbbbb')
+}
+
+enum class numbers_scoped { one,
+ two };
+
+// Test cases for arithmetic types.
+void arithmetic_type_parameters(float vvvvvv, int wwwwww);
+void arithmetic_type_parameters2(numbers_scoped vvvvvv, int wwwwww);
+
+void arithmetic_types_swap1() {
+ bool wwwwww;
+ float vvvvvv;
+ arithmetic_type_parameters(wwwwww, vvvvvv);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'wwwwww' (passed to 'vvvvvv') looks like it might be swapped with the 2nd, 'vvvvvv' (passed to 'wwwwww')
+}
+
+void arithmetic_types_swap3() {
+ char wwwwww;
+ unsigned long long int vvvvvv;
+ arithmetic_type_parameters(wwwwww, vvvvvv);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'wwwwww' (passed to 'vvvvvv') looks like it might be swapped with the 2nd, 'vvvvvv' (passed to 'wwwwww')
+}
+
+void arithmetic_types_swap4() {
+ enum numbers { one,
+ two };
+ numbers wwwwww = numbers::one;
+ int vvvvvv;
+ arithmetic_type_parameters(wwwwww, vvvvvv);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'wwwwww' (passed to 'vvvvvv') looks like it might be swapped with the 2nd, 'vvvvvv' (passed to 'wwwwww')
+}
+
+void arithmetic_types_swap5() {
+ wchar_t vvvvvv;
+ float wwwwww;
+ arithmetic_type_parameters(wwwwww, vvvvvv);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'wwwwww' (passed to 'vvvvvv') looks like it might be swapped with the 2nd, 'vvvvvv' (passed to 'wwwwww')
+}
+
+void arithmetic_types_swap6() {
+ wchar_t vvvvvv;
+ numbers_scoped wwwwww = numbers_scoped::one;
+ // Do not check, numers is a scoped enum type.
+ arithmetic_type_parameters2(wwwwww, vvvvvv);
+}
+
+// Base, derived
+class TestClass {
+public:
+ void thisFunction(int integerParam, int thisIsPARAM) {}
+};
+
+class DerivedTestClass : public TestClass {};
+
+void base_derived_pointer_parameters(TestClass *aaaaaa,
+ DerivedTestClass *bbbbbb);
+
+void base_derived_swap1() {
+ TestClass *bbbbbb;
+ DerivedTestClass *aaaaaa;
+ // Do not check, because TestClass does not convert implicitly to DerivedTestClass.
+ base_derived_pointer_parameters(bbbbbb, aaaaaa);
+}
+
+void base_derived_swap2() {
+ DerivedTestClass *bbbbbb, *aaaaaa;
+ // Check for swapped arguments, DerivedTestClass converts to TestClass implicitly.
+ base_derived_pointer_parameters(bbbbbb, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'bbbbbb' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaaaa' (passed to 'bbbbbb')
+}
+
+// Multilevel inheritance
+class DerivedOfDerivedTestClass : public DerivedTestClass {};
+
+void multi_level_inheritance_swap() {
+ DerivedOfDerivedTestClass *aaaaaa, *bbbbbb;
+ // Check for swapped arguments. Derived classes implicitly convert to their base.
+ base_derived_pointer_parameters(
+ bbbbbb, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: 1st argument 'bbbbbb' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaaaa' (passed to 'bbbbbb')
+}
+
+// Tests for function pointer swaps
+void funct_ptr_params(double (*ffffff)(int, int), double (*gggggg)(int, int));
+void funct_ptr_params(double (*ffffff)(int, int), int (*gggggg)(int, int));
+
+double ffffff(int a, int b) { return 0; }
+double gggggg(int a, int b) { return 0; }
+
+void funtionc_ptr_params_swap() {
+ funct_ptr_params(gggggg, ffffff);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'gggggg' (passed to 'ffffff') looks like it might be swapped with the 2nd, 'ffffff' (passed to 'gggggg')
+}
+
+int fffff(int a, int b) { return 0; }
+
+void function_ptr_swap2() {
+ // Do not check, because the function `ffffff` cannot convert to a function
+ // with prototype: double(int,int).
+ funct_ptr_params(gggggg, fffff);
+}
+
+// Paraphrased example from Z3 (src/qe/qe_arrays.cpp) which originally produced
+// a false positive. Operator() calls should ignore the called object
+// "argument".
+struct type1;
+struct type2;
+struct type3;
+
+struct callable1 {
+ void operator()(type1 &mdl, type2 &arr_vars, type3 &fml, type2 &aux_vars) const {}
+};
+
+struct callable2 {
+ void operator()(type1 &mdl, type2 &arr_vars, type3 &fml, type2 &aux_vars,
+ bool reduce_all_selects) const {
+ (void)reduce_all_selects;
+ callable1 pe;
+ pe(mdl, arr_vars, fml, aux_vars);
+ // NO-WARN: Argument and parameter names match perfectly, "pe" should be
+ // ignored!
+ }
+};
+
+struct binop_t {};
+
+binop_t operator+(const binop_t &lhs, const binop_t &rhs) { return lhs; }
+bool operator<(const binop_t &lhs, const binop_t &rhs) { return true; }
+bool operator>(const binop_t &aaaaaa, const binop_t &bbbbbb) { return false; }
+
+void binop_test() {
+ // NO-WARN: Binary operators are ignored.
+ binop_t lhs, rhs;
+ if (lhs + rhs < rhs)
+ return;
+
+ if (operator<(rhs, lhs))
+ return;
+
+ binop_t aaaaaa, cccccc;
+ if (operator>(cccccc, aaaaaa))
+ return;
+}
+
+int recursion(int aaaa, int bbbb) {
+ if (aaaa)
+ return 0;
+
+ int cccc = 0;
+ return recursion(bbbb, cccc);
+ // NO-WARN: Recursive calls usually shuffle with arguments and we ignore those.
+}
+
+void pass_by_copy(binop_t xxxx, binop_t yyyy) {}
+
+// Paraphrased example from LLVM's code (lib/Analysis/InstructionSimplify.cpp)
+// that generated a false positive.
+struct value;
+enum opcode { Foo,
+ Bar };
+static value *SimplifyRightShift(
+ opcode Opcode, value *Op0, value *Op1, bool isExact,
+ const type1 &Q, unsigned MaxRecurse) {}
+static value *SimplifyLShrInst(value *Op0, value *Op1, bool isExact,
+ const type1 &Q, unsigned MaxRecurse) {
+ if (value *V = SimplifyRightShift(Foo, Op0, Op1, isExact, Q, MaxRecurse))
+ return V;
+ // NO-WARN: Argument names perfectly match parameter names, sans the enum.
+
+ return nullptr;
+}
+
+void has_unnamed(int aaaaaa, int) {}
+
+int main() {
+ // Equality test.
+ int aaaaaa, cccccc = 0;
+ foo_1(cccccc, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaaaa' (passed to 'bbbbbb')
+
+ binop_t xxxx, yyyy;
+ pass_by_copy(yyyy, xxxx);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'yyyy' (passed to 'xxxx') looks like it might be swapped with the 2nd, 'xxxx' (passed to 'yyyy')
+
+ // Abbreviation test.
+ int src = 0;
+ foo_2(aaaaaa, src);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'aaaaaa' (passed to 'source') looks like it might be swapped with the 2nd, 'src' (passed to 'aaaaaa')
+
+ // Levenshtein test.
+ int aaaabb = 0;
+ foo_1(cccccc, aaaabb);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaabb' (passed to 'bbbbbb')
+
+ // Prefix test.
+ int aaaa = 0;
+ foo_1(cccccc, aaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaa' (passed to 'bbbbbb')
+
+ // Suffix test.
+ int urce = 0;
+ foo_2(cccccc, urce);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'source') looks like it might be swapped with the 2nd, 'urce' (passed to 'aaaaaa')
+
+ // Substring test.
+ int ourc = 0;
+ foo_2(cccccc, ourc);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'source') looks like it might be swapped with the 2nd, 'ourc' (passed to 'aaaaaa')
+
+ // Jaro-Winkler test.
+ int iPonter = 0;
+ foo_4(cccccc, iPonter);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'pointer') looks like it might be swapped with the 2nd, 'iPonter' (passed to 'aaaaaa')
+
+ // Dice test.
+ int aaabaa = 0;
+ foo_1(cccccc, aaabaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaabaa' (passed to 'bbbbbb')
+
+ // Variadic function test.
+ int bbbbbb = 0;
+ foo_5(src, bbbbbb, cccccc, aaaaaa); // Should pass.
+ foo_5(cccccc, bbbbbb, aaaaaa, src);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 3rd, 'aaaaaa' (passed to 'cccccc')
+
+ // Test function with default argument.
+ foo_7(src, bbbbbb, cccccc, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'src' (passed to 'aaaaaa') looks like it might be swapped with the 4th, 'aaaaaa' (passed to 'ffffff')
+
+ foo_7(cccccc, bbbbbb, aaaaaa, src);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'cccccc' (passed to 'aaaaaa') looks like it might be swapped with the 3rd, 'aaaaaa' (passed to 'cccccc')
+
+ int ffffff = 0;
+ foo_7(ffffff, bbbbbb, cccccc); // NO-WARN: Even though 'ffffff' is passed to 'aaaaaa' and there is a 4th parameter 'ffffff', there isn't a **swap** here.
+
+ int frobble1 = 1, frobble2 = 2;
+ foo_8(frobble2, frobble1);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'frobble2' (passed to 'frobble1') looks like it might be swapped with the 2nd, 'frobble1' (passed to 'frobble2')
+
+ int bar1 = 1, bar2 = 2;
+ foo_8(bar2, bar1); // NO-WARN.
+
+ // Type match
+ bool dddddd = false;
+ int eeeeee = 0;
+ auto szam = 0;
+ foo_6(eeeeee, dddddd);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'eeeeee' (passed to 'dddddd') looks like it might be swapped with the 2nd, 'dddddd' (passed to 'eeeeee')
+ foo_1(szam, aaaaaa);
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 1st argument 'szam' (passed to 'aaaaaa') looks like it might be swapped with the 2nd, 'aaaaaa' (passed to 'bbbbbb')
+
+ // Test lambda.
+ auto testMethod = [&](int method, int randomParam) { return 0; };
+ int method = 0;
+ testMethod(method, 0); // Should pass.
+
+ // Member function test.
+ TestClass test;
+ int integ, thisIsAnArg = 0;
+ test.thisFunction(integ, thisIsAnArg); // Should pass.
+
+ has_unnamed(1, bbbbbb);
+
+ return 0;
+}
Index: clang-tools-extra/docs/clang-tidy/checks/readability-suspicious-call-argument.rst
===================================================================
--- /dev/null
+++ clang-tools-extra/docs/clang-tidy/checks/readability-suspicious-call-argument.rst
@@ -0,0 +1,242 @@
+.. title:: clang-tidy - readability-suspicious-call-argument
+
+readability-suspicious-call-argument
+====================================
+
+Finds function calls where the arguments passed are provided out of order,
+based on the difference between the argument name and the parameter names
+of the function.
+
+Given a function call ``f(foo, bar);`` and a function signature
+``void f(T tvar, U uvar)``, the arguments ``foo`` and ``bar`` are swapped if
+``foo`` (the argument name) is more similar to ``uvar`` (the other parameter)
+than ``tvar`` (the parameter it is currently passed to) **and** ``bar`` is
+more similar to ``tvar`` than ``uvar``.
+
+Warnings might indicate either that the arguments are swapped, or that the
+names' cross-similarity might hinder code comprehension.
+
+.. _heuristics:
+
+Heuristics
+----------
+
+The following heuristics are implemented in the check.
+If **any** of the enabled heuristics deem the arguments to be provided out of
+order, a warning will be issued.
+
+The heuristics themselves are implemented by considering pairs of strings, and
+are symmetric, so in the following there is no distinction on which string is
+the argument name and which string is the parameter name.
+
+Equality
+^^^^^^^^
+
+The most trivial heuristic, which compares the two strings for case-insensitive
+equality.
+
+.. _abbreviation_heuristic:
+
+Abbreviation
+^^^^^^^^^^^^
+
+Common abbreviations can be specified which will deem the strings similar if
+the abbreviated and the abbreviation stand together.
+For example, if ``src`` is registered as an abbreviation for ``source``, then
+the following code example will be warned about.
+
+.. code-block:: c++
+
+ void foo(int source, int x);
+
+ foo(b, src);
+
+The abbreviations to recognise can be configured with the
+:ref:`Abbreviations<opt_Abbreviations>` check option.
+This heuristic is case-insensitive.
+
+Prefix
+^^^^^^
+
+The *prefix* heuristic reports if one of the strings is a sufficiently long
+prefix of the other string, e.g. ``target`` to ``targetPtr``.
+The similarity percentage is the length ratio of the prefix to the longer
+string, in the previous example, it would be `6 / 9 = 66.66...`\%.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `25`\% dissimilar and above `30`\% similar.
+This heuristic is case-insensitive.
+
+Suffix
+^^^^^^
+
+Analogous to the `Prefix` heuristic.
+In the case of ``oldValue`` and ``value`` compared, the similarity percentage
+is `8 / 5 = 62.5`\%.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `25`\% dissimilar and above `30`\% similar.
+This heuristic is case-insensitive.
+
+Substring
+^^^^^^^^^
+
+The substring heuristic combines the prefix and the suffix heuristic, and tries
+to find the *longest common substring* in the two strings provided.
+The similarity percentage is the ratio of the found longest common substring
+against the *longer* of the two input strings.
+For example, given ``val`` and ``rvalue``, the similarity is `3 / 6 = 50`\%.
+If no characters are common in the two string, `0`\%.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `40`\% dissimilar and above `50`\% similar.
+This heuristic is case-sensitive.
+
+Levenshtein distance (as `Levenshtein`)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The `Levenshtein distance <http://en.wikipedia.org/wiki/Levenshtein_distance>`_
+describes how many single-character changes (additions, changes, or removals)
+must be applied to transform one string into another.
+
+The Levenshtein distance is translated into a similarity percentage by dividing
+it with the length of the *longer* string, and taking its complement with
+regards to `100`\%.
+For example, given ``something`` and ``anything``, the distance is `4` edits,
+and the similarity percentage is `100`\% `- 4 / 9 = 55.55...`\%.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `50`\% dissimilar and above `66`\% similar.
+This heuristic is case-sensitive.
+
+JaroâWinkler distance (as `JaroWinkler`)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The `JaroâWinkler distance <http://en.wikipedia.org/wiki/JaroâWinkler_distance>`_
+is an edit distance like the Levenshtein distance.
+It is calculated from the amount of common characters that are sufficiently
+close to each other in position, and to-be-changed characters.
+The original definition of Jaro has been extended by Winkler to weigh prefix
+similarities more.
+The similarity percentage is expressed as an average of the common and
+non-common characters against the length of both strings.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `75`\% dissimilar and above `85`\% similar.
+This heuristic is case-insensitive.
+
+SørensenâDice coefficient (as `Dice`)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The `SørensenâDice coefficient <http://en.wikipedia.org/wiki/SørensenâDice_coefficient>`_
+was originally defined to measure the similarity of two sets.
+Formally, the coefficient is calculated by dividing `2 * #(intersection)` with
+`#(set1) + #(set2)`, where `#()` is the cardinality function of sets.
+This metric is applied to strings by creating bigrams (substring sequences of
+length 2) of the two strings and using the set of bigrams for the two strings
+as the two sets.
+
+This heuristic can be configured with :ref:`bounds<opt_Bounds>`.
+The default bounds are: below `60`\% dissimilar and above `70`\% similar.
+This heuristic is case-insensitive.
+
+
+Options
+-------
+
+.. option:: MinimumIdentifierNameLength
+
+ Sets the minimum required length the argument and parameter names
+ need to have. Names shorter than this length will be ignored.
+ Defaults to `3`.
+
+.. _opt_Abbreviations:
+
+.. option:: Abbreviations
+
+ For the **Abbreviation** heuristic
+ (:ref:`see here<abbreviation_heuristic>`), this option configures the
+ abbreviations in the `"abbreviation=abbreviated_value"` format.
+ The option is a string, with each value joined by `";"`.
+
+ By default, the following abbreviations are set:
+
+ * `addr=address`
+ * `arr=array`
+ * `attr=attribute`
+ * `buf=buffer`
+ * `cl=client`
+ * `cnt=count`
+ * `col=column`
+ * `cpy=copy`
+ * `dest=destination`
+ * `dist=distance`
+ * `dst=distance`
+ * `elem=element`
+ * `hght=height`
+ * `i=index`
+ * `idx=index`
+ * `len=length`
+ * `ln=line`
+ * `lst=list`
+ * `nr=number`
+ * `num=number`
+ * `pos=position`
+ * `ptr=pointer`
+ * `ref=reference`
+ * `src=source`
+ * `srv=server`
+ * `stmt=statement`
+ * `str=string`
+ * `val=value`
+ * `var=variable`
+ * `vec=vector`
+ * `wdth=width`
+
+The configuration options for each implemented heuristic (see above) is
+constructed dynamically.
+In the following, `<HeuristicName>` refers to one of the keys from the
+heuristics implemented.
+
+.. option:: <HeuristicName>
+
+ `True` or `False`, whether a particular heuristic, such as `Equality` or
+ `Levenshtein` is enabled.
+
+ Defaults to `True` for every heuristic.
+
+.. _opt_Bounds:
+
+.. option:: <HeuristicName>DissimilarBelow, <HeuristicName>SimilarAbove
+
+ A value between `0` and `100`, expressing a percentage.
+ The bounds set what percentage of similarity the heuristic must deduce
+ for the two identifiers to be considered similar or dissimilar by the
+ check.
+
+ Given arguments ``arg1`` and ``arg2`` passed to ``param1`` and ``param2``,
+ respectively, the bounds check is performed in the following way:
+ If the similarity of the currently passed argument order
+ (``arg1`` to ``param1``) is **below** the `DissimilarBelow` threshold, and
+ the similarity of the suggested swapped order (``arg1`` to ``param2``) is
+ **above** the `SimilarAbove` threshold, the swap is reported.
+
+ For the defaults of each heuristic, :ref:`see above<heuristics>`.
+
+
+Name synthesis
+--------------
+
+When comparing the argument names and parameter names, the following logic is
+used to gather the names for comparison:
+
+Parameter names are the identifiers as written in the source code.
+
+Argument names are:
+
+ * If a variable is passed, the variable's name.
+ * If a subsequent function call's return value is used as argument, the called
+ function's name.
+ * Otherwise, empty string.
+
+Empty argument or parameter names are ignored by the heuristics.
Index: clang-tools-extra/docs/clang-tidy/checks/list.rst
===================================================================
--- clang-tools-extra/docs/clang-tidy/checks/list.rst
+++ clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -309,6 +309,7 @@
`readability-static-accessed-through-instance <readability-static-accessed-through-instance.html>`_, "Yes"
`readability-static-definition-in-anonymous-namespace <readability-static-definition-in-anonymous-namespace.html>`_, "Yes"
`readability-string-compare <readability-string-compare.html>`_, "Yes"
+ `readability-suspicious-call-argument <readability-suspicious-call-argument.html>`_,
`readability-uniqueptr-delete-release <readability-uniqueptr-delete-release.html>`_, "Yes"
`readability-uppercase-literal-suffix <readability-uppercase-literal-suffix.html>`_, "Yes"
`readability-use-anyofallof <readability-use-anyofallof.html>`_,
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -110,6 +110,13 @@
:doc:`concurrency-thread-canceltype-asynchronous
<clang-tidy/checks/concurrency-thread-canceltype-asynchronous>` was added.
+- New `readability-suspicious-call-argument
+ <clang-tidy/checks/readability-suspicious-call-argument>`_ check
+
+ Finds function calls where the arguments passed are provided out of order,
+ based on the difference between the argument name and the parameter names
+ of the function.
+
Changes in existing checks
^^^^^^^^^^^^^^^^^^^^^^^^^^
Index: clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.h
===================================================================
--- /dev/null
+++ clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.h
@@ -0,0 +1,100 @@
+//===--- SuspiciousCallArgumentCheck.h - clang-tidy -------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_SUSPICIOUSCALLARGUMENT_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_SUSPICIOUSCALLARGUMENT_H
+
+#include "../ClangTidyCheck.h"
+#include "llvm/ADT/StringSet.h"
+
+namespace clang {
+namespace tidy {
+namespace readability {
+
+/// Finds function calls where the arguments passed are provided out of order,
+/// based on the difference between the argument name and the parameter names
+/// of the function.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/readability-suspicious-call-argument.html
+class SuspiciousCallArgumentCheck : public ClangTidyCheck {
+ enum class Heuristic {
+ Equality,
+ Abbreviation,
+ Prefix,
+ Suffix,
+ Substring,
+ Levenshtein,
+ JaroWinkler,
+ Dice
+ };
+
+ /// When applying a heuristic, the value of this enum decides which kind of
+ /// bound will be selected from the bounds configured for the heuristic.
+ /// This only applies to heuristics that can take bounds.
+ enum class BoundKind {
+ /// Check for dissimilarity of the names. Names are deemed dissimilar if
+ /// the similarity measurement is **below** the configured threshold.
+ DissimilarBelow,
+
+ /// Check for similarity of the names. Names are deemed similar if the
+ /// similarity measurement (the result of heuristic) is **above** the
+ /// configured threshold.
+ SimilarAbove
+ };
+
+public:
+ static constexpr std::size_t SmallVectorSize = 8;
+ static constexpr std::size_t HeuristicCount =
+ static_cast<std::size_t>(Heuristic::Dice) + 1;
+
+ SuspiciousCallArgumentCheck(StringRef Name, ClangTidyContext *Context);
+ void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+
+private:
+ const std::size_t MinimumIdentifierNameLength;
+
+ /// The configuration for which heuristics were enabled.
+ SmallVector<Heuristic, HeuristicCount> AppliedHeuristics;
+
+ /// The lower and upper bounds for each heuristic, as configured by the user.
+ SmallVector<std::pair<int8_t, int8_t>, HeuristicCount> ConfiguredBounds;
+
+ /// The abbreviation-to-abbreviated map for the Abbreviation heuristic.
+ llvm::StringMap<std::string> AbbreviationDictionary;
+
+ bool isHeuristicEnabled(Heuristic H) const;
+ Optional<int8_t> getBound(Heuristic H, BoundKind BK) const;
+
+ // Runtime information of the currently analyzed function call.
+ SmallVector<QualType, SmallVectorSize> ArgTypes;
+ SmallVector<StringRef, SmallVectorSize> ArgNames;
+ SmallVector<QualType, SmallVectorSize> ParamTypes;
+ SmallVector<StringRef, SmallVectorSize> ParamNames;
+
+ void setParamNamesAndTypes(const FunctionDecl *CalleeFuncDecl);
+
+ void setArgNamesAndTypes(const CallExpr *MatchedCallExpr,
+ std::size_t InitialArgIndex);
+
+ bool areParamAndArgComparable(std::size_t Position1, std::size_t Position2,
+ const ASTContext &Ctx) const;
+
+ bool areArgsSwapped(std::size_t Position1, std::size_t Position2) const;
+
+ bool areNamesSimilar(StringRef Arg, StringRef Param, Heuristic H,
+ BoundKind BK) const;
+};
+
+} // namespace readability
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_SUSPICIOUS_CALL_ARGUMENT_H
Index: clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.cpp
===================================================================
--- /dev/null
+++ clang-tools-extra/clang-tidy/readability/SuspiciousCallArgumentCheck.cpp
@@ -0,0 +1,805 @@
+//===--- SuspiciousCallArgumentCheck.cpp - clang-tidy ---------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "SuspiciousCallArgumentCheck.h"
+#include "../utils/OptionsUtils.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Type.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include <sstream>
+
+using namespace clang::ast_matchers;
+namespace optutils = clang::tidy::utils::options;
+
+namespace clang {
+namespace tidy {
+namespace readability {
+
+namespace {
+struct DefaultHeuristicConfiguration {
+ /// Whether the heuristic is to be enabled by default.
+ const bool Enabled;
+
+ /// The upper bound of % of similarity the two strings might have to be
+ /// considered dissimilar.
+ /// (For purposes of configuration, -1 if the heuristic is not configurable
+ /// with bounds.)
+ const int8_t DissimilarBelow;
+
+ /// The lower bound of % of similarity the two string must have to be
+ /// considered similar.
+ /// (For purposes of configuration, -1 if the heuristic is not configurable
+ /// with bounds.)
+ const int8_t SimilarAbove;
+
+ /// Can the heuristic be configured with bounds?
+ bool hasBounds() const { return DissimilarBelow > -1 && SimilarAbove > -1; }
+};
+} // namespace
+
+static constexpr std::size_t DefaultMinimumIdentifierNameLength = 3;
+
+static constexpr StringRef HeuristicToString[] = {
+ "Equality", "Abbreviation", "Prefix", "Suffix",
+ "Substring", "Levenshtein", "JaroWinkler", "Dice"};
+
+static constexpr DefaultHeuristicConfiguration Defaults[] = {
+ {true, -1, -1}, // Equality.
+ {true, -1, -1}, // Abbreviation.
+ {true, 25, 30}, // Prefix.
+ {true, 25, 30}, // Suffix.
+ {true, 40, 50}, // Substring.
+ {true, 50, 66}, // Levenshtein.
+ {true, 75, 85}, // Jaro-Winkler.
+ {true, 60, 70}, // Dice.
+};
+
+static_assert(
+ sizeof(HeuristicToString) / sizeof(HeuristicToString[0]) ==
+ SuspiciousCallArgumentCheck::HeuristicCount,
+ "Ensure that every heuristic has a corresponding stringified name");
+static_assert(sizeof(Defaults) / sizeof(Defaults[0]) ==
+ SuspiciousCallArgumentCheck::HeuristicCount,
+ "Ensure that every heuristic has a default configuration.");
+
+namespace {
+template <std::size_t I> struct HasWellConfiguredBounds {
+ static constexpr bool Value =
+ !((Defaults[I].DissimilarBelow == -1) ^ (Defaults[I].SimilarAbove == -1));
+ static_assert(Value, "A heuristic must either have a dissimilarity and "
+ "similarity bound, or neither!");
+};
+
+template <std::size_t I> struct HasWellConfiguredBoundsFold {
+ static constexpr bool Value = HasWellConfiguredBounds<I>::Value &&
+ HasWellConfiguredBoundsFold<I - 1>::Value;
+};
+
+template <> struct HasWellConfiguredBoundsFold<0> {
+ static constexpr bool Value = HasWellConfiguredBounds<0>::Value;
+};
+
+struct AllHeuristicsBoundsWellConfigured {
+ static constexpr bool Value =
+ HasWellConfiguredBoundsFold<SuspiciousCallArgumentCheck::HeuristicCount -
+ 1>::Value;
+};
+
+static_assert(AllHeuristicsBoundsWellConfigured::Value, "");
+} // namespace
+
+static const std::string DefaultAbbreviations =
+ optutils::serializeStringList({"addr=address",
+ "arr=array",
+ "attr=attribute",
+ "buf=buffer",
+ "cl=client",
+ "cnt=count",
+ "col=column",
+ "cpy=copy",
+ "dest=destination",
+ "dist=distance"
+ "dst=distance",
+ "elem=element",
+ "hght=height",
+ "i=index",
+ "idx=index",
+ "len=length",
+ "ln=line",
+ "lst=list",
+ "nr=number",
+ "num=number",
+ "pos=position",
+ "ptr=pointer",
+ "ref=reference",
+ "src=source",
+ "srv=server",
+ "stmt=statement",
+ "str=string",
+ "val=value",
+ "var=variable",
+ "vec=vector",
+ "wdth=width"});
+
+static constexpr std::size_t SmallVectorSize =
+ SuspiciousCallArgumentCheck::SmallVectorSize;
+
+/// Returns how many % X is of Y.
+static inline double percentage(double X, double Y) { return X / Y * 100.0; }
+
+static bool applyEqualityHeuristic(StringRef Arg, StringRef Param) {
+ return Arg.equals_lower(Param);
+}
+
+static bool applyAbbreviationHeuristic(
+ const llvm::StringMap<std::string> &AbbreviationDictionary, StringRef Arg,
+ StringRef Param) {
+ if (AbbreviationDictionary.find(Arg) != AbbreviationDictionary.end() &&
+ Param.equals(AbbreviationDictionary.lookup(Arg)))
+ return true;
+
+ if (AbbreviationDictionary.find(Param) != AbbreviationDictionary.end() &&
+ Arg.equals(AbbreviationDictionary.lookup(Param)))
+ return true;
+
+ return false;
+}
+
+/// Check whether the shorter String is a prefix of the longer String.
+static bool applyPrefixHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ StringRef Shorter = Arg.size() < Param.size() ? Arg : Param;
+ StringRef Longer = Arg.size() >= Param.size() ? Arg : Param;
+
+ if (Longer.startswith_lower(Shorter))
+ return percentage(Shorter.size(), Longer.size()) > Threshold;
+
+ return false;
+}
+
+/// Check whether the shorter String is a suffix of the longer String.
+static bool applySuffixHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ StringRef Shorter = Arg.size() < Param.size() ? Arg : Param;
+ StringRef Longer = Arg.size() >= Param.size() ? Arg : Param;
+
+ if (Longer.endswith_lower(Shorter))
+ return percentage(Shorter.size(), Longer.size()) > Threshold;
+
+ return false;
+}
+
+static bool applySubstringHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ std::size_t MaxLength = 0;
+ SmallVector<std::size_t, SmallVectorSize> Current(Param.size());
+ SmallVector<std::size_t, SmallVectorSize> Previous(Param.size());
+
+ for (std::size_t I = 0; I < Arg.size(); ++I) {
+ for (std::size_t J = 0; J < Param.size(); ++J) {
+ if (Arg[I] == Param[J]) {
+ if (I == 0 || J == 0)
+ Current[J] = 1;
+ else
+ Current[J] = 1 + Previous[J - 1];
+
+ MaxLength = std::max(MaxLength, Current[J]);
+ } else
+ Current[J] = 0;
+ }
+
+ Current.swap(Previous);
+ }
+
+ size_t LongerLength = std::max(Arg.size(), Param.size());
+ return percentage(MaxLength, LongerLength) > Threshold;
+}
+
+static bool applyLevenshteinHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ std::size_t LongerLength = std::max(Arg.size(), Param.size());
+ double Dist = Arg.edit_distance(Param);
+ Dist = (1 - Dist / LongerLength) * 100;
+ return Dist > Threshold;
+}
+
+// Based on http://en.wikipedia.org/wiki/JaroâWinkler_distance.
+static bool applyJaroWinklerHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ std::size_t Match = 0, Transpos = 0;
+ std::ptrdiff_t ArgLen = Arg.size();
+ std::ptrdiff_t ParamLen = Param.size();
+ SmallVector<int, SmallVectorSize> ArgFlags(ArgLen);
+ SmallVector<int, SmallVectorSize> ParamFlags(ParamLen);
+ std::ptrdiff_t Range =
+ std::max(std::ptrdiff_t{0}, std::max(ArgLen, ParamLen) / 2 - 1);
+
+ // Calculate matching characters.
+ for (std::ptrdiff_t I = 0; I < ParamLen; ++I)
+ for (std::ptrdiff_t J = std::max(I - Range, std::ptrdiff_t{0}),
+ L = std::min(I + Range + 1, ArgLen);
+ J < L; ++J)
+ if (tolower(Param[I]) == tolower(Arg[J]) && !ArgFlags[J]) {
+ ArgFlags[J] = 1;
+ ParamFlags[I] = 1;
+ ++Match;
+ break;
+ }
+
+ if (!Match)
+ return false;
+
+ // Calculate character transpositions.
+ std::ptrdiff_t L = 0;
+ for (std::ptrdiff_t I = 0; I < ParamLen; ++I) {
+ if (ParamFlags[I] == 1) {
+ std::ptrdiff_t J;
+ for (J = L; J < ArgLen; ++J)
+ if (ArgFlags[J] == 1) {
+ L = J + 1;
+ break;
+ }
+
+ if (tolower(Param[I]) != tolower(Arg[J]))
+ ++Transpos;
+ }
+ }
+ Transpos /= 2;
+
+ // Jaro distance.
+ double MatchD = Match;
+ double Dist = ((MatchD / ArgLen) + (MatchD / ParamLen) +
+ ((MatchD - Transpos) / Match)) /
+ 3.0;
+
+ // Calculate common string prefix up to 4 chars.
+ L = 0;
+ for (std::ptrdiff_t I = 0;
+ I < std::min(std::min(ArgLen, ParamLen), std::ptrdiff_t{4}); ++I)
+ if (tolower(Arg[I]) == tolower(Param[I]))
+ ++L;
+
+ // Jaro-Winkler distance.
+ Dist = (Dist + (L * 0.1 * (1 - Dist))) * 100;
+ return Dist > Threshold;
+}
+
+// Based on http://en.wikipedia.org/wiki/SørensenâDice_coefficient
+static bool applyDiceHeuristic(StringRef Arg, StringRef Param,
+ int8_t Threshold) {
+ llvm::StringSet<> ArgBigrams;
+ llvm::StringSet<> ParamBigrams;
+
+ // Extract character bigrams from Arg.
+ for (std::ptrdiff_t I = 0; I < static_cast<std::ptrdiff_t>(Arg.size()) - 1;
+ ++I)
+ ArgBigrams.insert(Arg.substr(I, 2).lower());
+
+ // Extract character bigrams from Param.
+ for (std::ptrdiff_t I = 0; I < static_cast<std::ptrdiff_t>(Param.size()) - 1;
+ ++I)
+ ParamBigrams.insert(Param.substr(I, 2).lower());
+
+ std::size_t Intersection = 0;
+
+ // Find the intersection between the two sets.
+ for (auto IT = ParamBigrams.begin(); IT != ParamBigrams.end(); ++IT)
+ Intersection += ArgBigrams.count((IT->getKey()));
+
+ // Calculate Dice coefficient.
+ return percentage(Intersection * 2.0,
+ ArgBigrams.size() + ParamBigrams.size()) > Threshold;
+}
+
+/// Checks if ArgType binds to ParamType ragerding reference-ness and
+/// cv-qualifiers.
+static bool areRefAndQualCompatible(QualType ArgType, QualType ParamType) {
+ return !ParamType->isReferenceType() ||
+ ParamType.getNonReferenceType().isAtLeastAsQualifiedAs(
+ ArgType.getNonReferenceType());
+}
+
+static bool isPointerOrArray(const QualType &TypeToCheck) {
+ return TypeToCheck->isPointerType() || TypeToCheck->isArrayType();
+}
+
+/// Checks whether ArgType is an array type identical to ParamType's array type.
+/// Enforces array elements' qualifier compatibility as well.
+static bool isCompatibleWithArrayReference(const QualType &ArgType,
+ const QualType &ParamType) {
+ if (!ArgType->isArrayType())
+ return false;
+ // Here, qualifiers belong to the elements of the arrays.
+ if (!ParamType.isAtLeastAsQualifiedAs(ArgType))
+ return false;
+
+ return ParamType.getUnqualifiedType() == ArgType.getUnqualifiedType();
+}
+
+static void convertToPointeeOrArrayElementQualType(QualType &TypeToConvert) {
+ unsigned CVRqualifiers = 0;
+ // Save array element qualifiers, since getElementType() removes qualifiers
+ // from array elements.
+ if (TypeToConvert->isArrayType())
+ CVRqualifiers = TypeToConvert.getLocalQualifiers().getCVRQualifiers();
+ TypeToConvert = TypeToConvert->isPointerType()
+ ? TypeToConvert->getPointeeType()
+ : TypeToConvert->getAsArrayTypeUnsafe()->getElementType();
+ TypeToConvert = TypeToConvert.withCVRQualifiers(CVRqualifiers);
+}
+
+/// Checks if multilevel pointers' qualifiers compatibility continues on the
+/// current pointer level. For multilevel pointers, C++ permits conversion, if
+/// every cv-qualifier in ArgType also appears in the corresponding position in
+/// ParamType, and if PramType has a cv-qualifier that's not in ArgType, then
+/// every * in ParamType to the right of that cv-qualifier, except the last
+/// one, must also be const-qualified.
+static bool arePointersStillQualCompatible(QualType ArgType, QualType ParamType,
+ bool &IsParamContinuouslyConst) {
+ // The types are compatible, if the parameter is at least as qualified as the
+ // argument, and if it is more qualified, it has to be const on upper pointer
+ // levels.
+ bool AreTypesQualCompatible =
+ ParamType.isAtLeastAsQualifiedAs(ArgType) &&
+ (!ParamType.hasQualifiers() || IsParamContinuouslyConst);
+ // Check whether the parameter's constness continues at the current pointer
+ // level.
+ IsParamContinuouslyConst &= ParamType.isConstQualified();
+
+ return AreTypesQualCompatible;
+}
+
+/// Checks whether multilevel pointers are compatible in terms of levels,
+/// qualifiers and pointee type.
+static bool arePointerTypesCompatible(QualType ArgType, QualType ParamType,
+ bool IsParamContinuouslyConst) {
+
+ if (!arePointersStillQualCompatible(ArgType, ParamType,
+ IsParamContinuouslyConst))
+ return false;
+
+ do {
+ // Step down one pointer level.
+ convertToPointeeOrArrayElementQualType(ArgType);
+ convertToPointeeOrArrayElementQualType(ParamType);
+
+ // Check whether cv-qualifiers premit compatibility on
+ // current level.
+ if (!arePointersStillQualCompatible(ArgType, ParamType,
+ IsParamContinuouslyConst))
+ return false;
+
+ if (ParamType.getUnqualifiedType() == ArgType.getUnqualifiedType())
+ return true;
+
+ } while (ParamType->isPointerType() && ArgType->isPointerType());
+ // The final type does not match, or pointer levels differ.
+ return false;
+}
+
+/// Checks whether ArgType converts implicitly to ParamType.
+static bool areTypesCompatible(QualType ArgType, QualType ParamType,
+ const ASTContext &Ctx) {
+ if (ArgType.isNull() || ParamType.isNull())
+ return false;
+
+ ArgType = ArgType.getCanonicalType();
+ ParamType = ParamType.getCanonicalType();
+
+ if (ArgType == ParamType)
+ return true;
+
+ // Check for constness and reference compatibility.
+ if (!areRefAndQualCompatible(ArgType, ParamType))
+ return false;
+
+ bool IsParamReference = ParamType->isReferenceType();
+
+ // Reference-ness has already been checked ad should be removed
+ // before further checking.
+ ArgType = ArgType.getNonReferenceType();
+ ParamType = ParamType.getNonReferenceType();
+
+ bool IsParamContinuouslyConst =
+ !IsParamReference || ParamType.getNonReferenceType().isConstQualified();
+
+ if (ParamType.getUnqualifiedType() == ArgType.getUnqualifiedType())
+ return true;
+
+ // Arithmetic types are interconvertible, except scoped enums.
+ if (ParamType->isArithmeticType() && ArgType->isArithmeticType()) {
+ if ((ParamType->isEnumeralType() &&
+ ParamType->getAs<EnumType>()->getDecl()->isScoped()) ||
+ (ArgType->isEnumeralType() &&
+ ArgType->getAs<EnumType>()->getDecl()->isScoped()))
+ return false;
+
+ return true;
+ }
+
+ // Check if the argument and the param are both function types (the parameter
+ // decayed to
+ // a function pointer).
+ if (ArgType->isFunctionType() && ParamType->isFunctionPointerType()) {
+ ParamType = ParamType->getPointeeType();
+ return ArgType == ParamType;
+ }
+
+ // Arrays or pointer arguments convert to array or pointer parameters.
+ if (!(isPointerOrArray(ArgType) && isPointerOrArray(ParamType)))
+ return false;
+
+ // When ParamType is an array reference, ArgType has to be of the same sized,
+ // array type with cv-compatible elements.
+ if (IsParamReference && ParamType->isArrayType())
+ return isCompatibleWithArrayReference(ArgType, ParamType);
+
+ // Remove the first level of indirection.
+ convertToPointeeOrArrayElementQualType(ArgType);
+ convertToPointeeOrArrayElementQualType(ParamType);
+
+ // Check qualifier compatibility on the next level.
+ if (!ParamType.isAtLeastAsQualifiedAs(ArgType))
+ return false;
+
+ if (ParamType.getUnqualifiedType() == ArgType.getUnqualifiedType())
+ return true;
+
+ // At this point, all possible C language implicit conversion were checked
+ if (!Ctx.getLangOpts().CPlusPlus)
+ return false;
+
+ // Check whether ParamType and ArgType were both pointers to a class or a
+ // struct, and check for inheritance.
+ if (ParamType->isStructureOrClassType() &&
+ ArgType->isStructureOrClassType()) {
+ auto *ArgDecl = ArgType->getAsCXXRecordDecl();
+ auto *ParamDecl = ParamType->getAsCXXRecordDecl();
+ if (!ArgDecl || !ArgDecl->hasDefinition() || !ParamDecl ||
+ !ParamDecl->hasDefinition())
+ return false;
+
+ return ArgDecl->isDerivedFrom(ParamDecl);
+ }
+
+ // Unless argument and param are both multilevel pointers, the types are not
+ // convertible.
+ if (!(ParamType->isAnyPointerType() && ArgType->isAnyPointerType()))
+ return false;
+
+ return arePointerTypesCompatible(ArgType, ParamType,
+ IsParamContinuouslyConst);
+}
+
+static bool isOverloadedUnaryOrBinarySymbolOperator(const FunctionDecl *FD) {
+ switch (FD->getOverloadedOperator()) {
+ case OO_None:
+ case OO_Call:
+ case OO_Subscript:
+ case OO_New:
+ case OO_Delete:
+ case OO_Array_New:
+ case OO_Array_Delete:
+ case OO_Conditional:
+ case OO_Coawait:
+ return false;
+
+ default:
+ return FD->getNumParams() <= 2;
+ }
+}
+
+SuspiciousCallArgumentCheck::SuspiciousCallArgumentCheck(
+ StringRef Name, ClangTidyContext *Context)
+ : ClangTidyCheck(Name, Context),
+ MinimumIdentifierNameLength(Options.get(
+ "MinimumIdentifierNameLength", DefaultMinimumIdentifierNameLength)) {
+ auto GetToggleOpt = [this](Heuristic H) -> bool {
+ auto Idx = static_cast<std::size_t>(H);
+ assert(Idx < HeuristicCount);
+ return Options.get(HeuristicToString[Idx], Defaults[Idx].Enabled);
+ };
+ auto GetBoundOpt = [this](Heuristic H, BoundKind BK) -> int8_t {
+ auto Idx = static_cast<std::size_t>(H);
+ assert(Idx < HeuristicCount);
+
+ SmallString<32> Key = HeuristicToString[Idx];
+ Key.append(BK == BoundKind::DissimilarBelow ? "DissimilarBelow"
+ : "SimilarAbove");
+ int8_t Default = BK == BoundKind::DissimilarBelow
+ ? Defaults[Idx].DissimilarBelow
+ : Defaults[Idx].SimilarAbove;
+ return Options.get(Key, Default);
+ };
+ for (std::size_t Idx = 0; Idx < HeuristicCount; ++Idx) {
+ auto H = static_cast<Heuristic>(Idx);
+ if (GetToggleOpt(H))
+ AppliedHeuristics.emplace_back(H);
+ ConfiguredBounds.emplace_back(
+ std::make_pair(GetBoundOpt(H, BoundKind::DissimilarBelow),
+ GetBoundOpt(H, BoundKind::SimilarAbove)));
+ }
+
+ for (const std::string &Abbreviation : optutils::parseStringList(
+ Options.get("Abbreviations", DefaultAbbreviations))) {
+ auto KeyAndValue = StringRef{Abbreviation}.split("=");
+ assert(!KeyAndValue.first.empty() && !KeyAndValue.second.empty());
+ AbbreviationDictionary.insert(
+ std::make_pair(KeyAndValue.first.str(), KeyAndValue.second.str()));
+ }
+}
+
+void SuspiciousCallArgumentCheck::storeOptions(
+ ClangTidyOptions::OptionMap &Opts) {
+ Options.store(Opts, "MinimumIdentifierNameLength",
+ MinimumIdentifierNameLength);
+ const auto &SetToggleOpt = [this, &Opts](Heuristic H) -> void {
+ auto Idx = static_cast<std::size_t>(H);
+ Options.store(Opts, HeuristicToString[Idx], isHeuristicEnabled(H));
+ };
+ const auto &SetBoundOpt = [this, &Opts](Heuristic H, BoundKind BK) -> void {
+ auto Idx = static_cast<std::size_t>(H);
+ assert(Idx < HeuristicCount);
+ if (!Defaults[Idx].hasBounds())
+ return;
+
+ SmallString<32> Key = HeuristicToString[Idx];
+ Key.append(BK == BoundKind::DissimilarBelow ? "DissimilarBelow"
+ : "SimilarAbove");
+ Options.store(Opts, Key, getBound(H, BK).getValue());
+ };
+
+ for (std::size_t Idx = 0; Idx < HeuristicCount; ++Idx) {
+ auto H = static_cast<Heuristic>(Idx);
+ SetToggleOpt(H);
+ SetBoundOpt(H, BoundKind::DissimilarBelow);
+ SetBoundOpt(H, BoundKind::SimilarAbove);
+ }
+
+ SmallVector<std::string, 32> Abbreviations;
+ for (const auto &Abbreviation : AbbreviationDictionary) {
+ SmallString<32> EqualSignJoined;
+ EqualSignJoined.append(Abbreviation.first());
+ EqualSignJoined.append("=");
+ EqualSignJoined.append(Abbreviation.second);
+
+ if (!Abbreviation.second.empty())
+ Abbreviations.emplace_back(EqualSignJoined.str());
+ }
+ Options.store(Opts, "Abbreviations",
+ optutils::serializeStringList(Abbreviations));
+}
+
+bool SuspiciousCallArgumentCheck::isHeuristicEnabled(Heuristic H) const {
+ return llvm::find(AppliedHeuristics, H) != AppliedHeuristics.end();
+}
+
+Optional<int8_t> SuspiciousCallArgumentCheck::getBound(Heuristic H,
+ BoundKind BK) const {
+ auto Idx = static_cast<std::size_t>(H);
+ assert(Idx < HeuristicCount);
+
+ if (!Defaults[Idx].hasBounds())
+ return {};
+
+ switch (BK) {
+ case BoundKind::DissimilarBelow:
+ return ConfiguredBounds[Idx].first;
+ case BoundKind::SimilarAbove:
+ return ConfiguredBounds[Idx].second;
+ }
+ llvm_unreachable("Unhandled Bound kind.");
+}
+
+void SuspiciousCallArgumentCheck::registerMatchers(MatchFinder *Finder) {
+ // Only match calls with at least 2 arguments.
+ Finder->addMatcher(
+ functionDecl(forEachDescendant(callExpr(unless(anyOf(argumentCountIs(0),
+ argumentCountIs(1))))
+ .bind("functionCall")))
+ .bind("callingFunc"),
+ this);
+}
+
+void SuspiciousCallArgumentCheck::check(
+ const MatchFinder::MatchResult &Result) {
+ const auto *MatchedCallExpr =
+ Result.Nodes.getNodeAs<CallExpr>("functionCall");
+ const auto *Caller = Result.Nodes.getNodeAs<FunctionDecl>("callingFunc");
+ assert(MatchedCallExpr && Caller);
+
+ const Decl *CalleeDecl = MatchedCallExpr->getCalleeDecl();
+ if (!CalleeDecl)
+ return;
+
+ const FunctionDecl *CalleeFuncDecl = CalleeDecl->getAsFunction();
+ if (!CalleeFuncDecl)
+ return;
+ if (CalleeFuncDecl == Caller)
+ // Ignore recursive calls.
+ return;
+ if (isOverloadedUnaryOrBinarySymbolOperator(CalleeFuncDecl))
+ return;
+
+ // Get param attributes.
+ setParamNamesAndTypes(CalleeFuncDecl);
+
+ if (ParamNames.empty())
+ return;
+
+ // Get Arg attributes.
+ std::size_t InitialArgIndex = 0;
+
+ if (const auto *MethodDecl = dyn_cast<CXXMethodDecl>(CalleeFuncDecl)) {
+ if (MethodDecl->getParent()->isLambda())
+ // Lambda functions' first Arg are the lambda object.
+ InitialArgIndex = 1;
+ else if (MethodDecl->getOverloadedOperator() == OO_Call)
+ // For custom operator()s, the first Arg is the called object.
+ InitialArgIndex = 1;
+ }
+
+ setArgNamesAndTypes(MatchedCallExpr, InitialArgIndex);
+
+ if (ArgNames.empty())
+ return;
+
+ std::size_t ParamCount = ParamNames.size();
+
+ // Check similarity.
+ for (std::size_t I = 0; I < ParamCount; ++I) {
+ for (std::size_t J = I + 1; J < ParamCount; ++J) {
+ // Do not check if param or arg names are short, or not convertible.
+ if (!areParamAndArgComparable(I, J, *Result.Context))
+ continue;
+ if (!areArgsSwapped(I, J))
+ continue;
+
+ // Warning at the call itself.
+ diag(MatchedCallExpr->getExprLoc(),
+ "%ordinal0 argument '%1' (passed to '%2') looks like it might be "
+ "swapped with the %ordinal3, '%4' (passed to '%5')")
+ << static_cast<unsigned>(I + 1) << ArgNames[I] << ParamNames[I]
+ << static_cast<unsigned>(J + 1) << ArgNames[J] << ParamNames[J]
+ << MatchedCallExpr->getArg(I)->getSourceRange()
+ << MatchedCallExpr->getArg(J)->getSourceRange();
+
+ // Note at the functions declaration.
+ SourceLocation IParNameLoc =
+ CalleeFuncDecl->getParamDecl(I)->getLocation();
+ SourceLocation JParNameLoc =
+ CalleeFuncDecl->getParamDecl(J)->getLocation();
+
+ diag(CalleeFuncDecl->getLocation(), "in the call to %0, declared here",
+ DiagnosticIDs::Note)
+ << CalleeFuncDecl
+ << CharSourceRange::getTokenRange(IParNameLoc, IParNameLoc)
+ << CharSourceRange::getTokenRange(JParNameLoc, JParNameLoc);
+ }
+ }
+}
+
+void SuspiciousCallArgumentCheck::setParamNamesAndTypes(
+ const FunctionDecl *CalleeFuncDecl) {
+ // Reset vectors, and fill them with the currently checked function's
+ // parameters' data.
+ ParamNames.clear();
+ ParamTypes.clear();
+
+ for (std::size_t I = 0, E = CalleeFuncDecl->getNumParams(); I != E; ++I) {
+ if (const auto *Param = CalleeFuncDecl->getParamDecl(I)) {
+ ParamTypes.push_back(Param->getType());
+
+ if (IdentifierInfo *II = Param->getIdentifier())
+ ParamNames.push_back(II->getName());
+ else
+ ParamNames.push_back(StringRef());
+ }
+ }
+}
+
+void SuspiciousCallArgumentCheck::setArgNamesAndTypes(
+ const CallExpr *MatchedCallExpr, std::size_t InitialArgIndex) {
+ // Reset vectors, and fill them with the currently checked function's
+ // arguments' data.
+ ArgNames.clear();
+ ArgTypes.clear();
+
+ for (std::size_t I = InitialArgIndex, J = MatchedCallExpr->getNumArgs();
+ I < J; ++I) {
+ if (const auto *ArgExpr = dyn_cast<DeclRefExpr>(
+ MatchedCallExpr->getArg(I)->IgnoreUnlessSpelledInSource())) {
+ if (const auto *Var = dyn_cast<VarDecl>(ArgExpr->getDecl())) {
+ ArgTypes.push_back(Var->getType());
+ ArgNames.push_back(Var->getName());
+ } else if (const auto *FCall =
+ dyn_cast<FunctionDecl>(ArgExpr->getDecl())) {
+ ArgTypes.push_back(FCall->getType());
+ ArgNames.push_back(FCall->getName());
+ } else {
+ ArgTypes.push_back(QualType());
+ ArgNames.push_back(StringRef());
+ }
+ } else {
+ ArgTypes.push_back(QualType());
+ ArgNames.push_back(StringRef());
+ }
+ }
+}
+
+bool SuspiciousCallArgumentCheck::areParamAndArgComparable(
+ std::size_t Position1, std::size_t Position2, const ASTContext &Ctx) const {
+ if (Position1 >= ArgNames.size() || Position2 >= ArgNames.size())
+ return false;
+
+ // Do not report for too short strings.
+ if (ArgNames[Position1].size() < MinimumIdentifierNameLength ||
+ ArgNames[Position2].size() < MinimumIdentifierNameLength ||
+ ParamNames[Position1].size() < MinimumIdentifierNameLength ||
+ ParamNames[Position2].size() < MinimumIdentifierNameLength)
+ return false;
+
+ if (!areTypesCompatible(ArgTypes[Position1], ParamTypes[Position2], Ctx) ||
+ !areTypesCompatible(ArgTypes[Position2], ParamTypes[Position1], Ctx))
+ return false;
+
+ return true;
+}
+
+bool SuspiciousCallArgumentCheck::areArgsSwapped(std::size_t Position1,
+ std::size_t Position2) const {
+ for (Heuristic H : AppliedHeuristics) {
+ bool A1ToP2Similar = areNamesSimilar(
+ ArgNames[Position2], ParamNames[Position1], H, BoundKind::SimilarAbove);
+ bool A2ToP1Similar = areNamesSimilar(
+ ArgNames[Position1], ParamNames[Position2], H, BoundKind::SimilarAbove);
+
+ bool A1ToP1Dissimilar =
+ !areNamesSimilar(ArgNames[Position1], ParamNames[Position1], H,
+ BoundKind::DissimilarBelow);
+ bool A2ToP2Dissimilar =
+ !areNamesSimilar(ArgNames[Position2], ParamNames[Position2], H,
+ BoundKind::DissimilarBelow);
+
+ if ((A1ToP2Similar || A2ToP1Similar) && A1ToP1Dissimilar &&
+ A2ToP2Dissimilar)
+ return true;
+ }
+ return false;
+}
+
+bool SuspiciousCallArgumentCheck::areNamesSimilar(StringRef Arg,
+ StringRef Param, Heuristic H,
+ BoundKind BK) const {
+ int8_t Threshold = -1;
+ if (Optional<int8_t> GotBound = getBound(H, BK))
+ Threshold = GotBound.getValue();
+
+ switch (H) {
+ case Heuristic::Equality:
+ return applyEqualityHeuristic(Arg, Param);
+ case Heuristic::Abbreviation:
+ return applyAbbreviationHeuristic(AbbreviationDictionary, Arg, Param);
+ case Heuristic::Prefix:
+ return applyPrefixHeuristic(Arg, Param, Threshold);
+ case Heuristic::Suffix:
+ return applySuffixHeuristic(Arg, Param, Threshold);
+ case Heuristic::Substring:
+ return applySubstringHeuristic(Arg, Param, Threshold);
+ case Heuristic::Levenshtein:
+ return applyLevenshteinHeuristic(Arg, Param, Threshold);
+ case Heuristic::JaroWinkler:
+ return applyJaroWinklerHeuristic(Arg, Param, Threshold);
+ case Heuristic::Dice:
+ return applyDiceHeuristic(Arg, Param, Threshold);
+ }
+}
+
+} // namespace readability
+} // namespace tidy
+} // namespace clang
Index: clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp
+++ clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp
@@ -43,6 +43,7 @@
#include "StaticAccessedThroughInstanceCheck.h"
#include "StaticDefinitionInAnonymousNamespaceCheck.h"
#include "StringCompareCheck.h"
+#include "SuspiciousCallArgumentCheck.h"
#include "UniqueptrDeleteReleaseCheck.h"
#include "UppercaseLiteralSuffixCheck.h"
#include "UseAnyOfAllOfCheck.h"
@@ -122,6 +123,8 @@
"readability-redundant-string-init");
CheckFactories.registerCheck<SimplifyBooleanExprCheck>(
"readability-simplify-boolean-expr");
+ CheckFactories.registerCheck<SuspiciousCallArgumentCheck>(
+ "readability-suspicious-call-argument");
CheckFactories.registerCheck<UniqueptrDeleteReleaseCheck>(
"readability-uniqueptr-delete-release");
CheckFactories.registerCheck<UppercaseLiteralSuffixCheck>(
Index: clang-tools-extra/clang-tidy/readability/CMakeLists.txt
===================================================================
--- clang-tools-extra/clang-tidy/readability/CMakeLists.txt
+++ clang-tools-extra/clang-tidy/readability/CMakeLists.txt
@@ -40,6 +40,7 @@
StaticAccessedThroughInstanceCheck.cpp
StaticDefinitionInAnonymousNamespaceCheck.cpp
StringCompareCheck.cpp
+ SuspiciousCallArgumentCheck.cpp
UniqueptrDeleteReleaseCheck.cpp
UppercaseLiteralSuffixCheck.cpp
UseAnyOfAllOfCheck.cpp
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