clang/test/SemaCXX/typo-correction-delayed.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-c++11-extensions %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 -Wno-c++11-extensions %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   4
   5 struct A {};
   6 struct B {};
   7 struct D {
   8   A fizbin;  // expected-note 2 {{declared here}}
   9   A foobar;  // expected-note 2 {{declared here}}
  10   B roxbin;  // expected-note 2 {{declared here}}
  11   B toobad;  // expected-note 2 {{declared here}}
  12   void BooHoo();
  13   void FoxBox();
  14 };
  15
  16 void something(A, B);
  17 void test() {
  18   D obj;
  19   something(obj.fixbin,   // expected-error {{did you mean 'fizbin'?}}
  20             obj.toobat);  // expected-error {{did you mean 'toobad'?}}
  21   something(obj.toobat,   // expected-error {{did you mean 'foobar'?}}
  22             obj.fixbin);  // expected-error {{did you mean 'roxbin'?}}
  23   something(obj.fixbin,   // expected-error {{did you mean 'fizbin'?}}
  24             obj.fixbin);  // expected-error {{did you mean 'roxbin'?}}
  25   something(obj.toobat,   // expected-error {{did you mean 'foobar'?}}
  26             obj.toobat);  // expected-error {{did you mean 'toobad'?}}
  27   // Both members could be corrected to methods, but that isn't valid.
  28   something(obj.boohoo,   // expected-error-re {{no member named 'boohoo' in 'D'{{$}}}}
  29             obj.foxbox);  // expected-error-re {{no member named 'foxbox' in 'D'{{$}}}}
  30   // The first argument has a usable correction but the second doesn't.
  31   something(obj.boobar,   // expected-error-re {{no member named 'boobar' in 'D'{{$}}}}
  32             obj.foxbox);  // expected-error-re {{no member named 'foxbox' in 'D'{{$}}}}
  33 }
  34
  35 // Ensure the delayed typo correction does the right thing when trying to
  36 // recover using a seemingly-valid correction for which a valid expression to
  37 // replace the TypoExpr cannot be created (but which does have a second
  38 // correction candidate that would be a valid and usable correction).
  39 class Foo {
  40 public:
  41   template <> void testIt();  // expected-error {{no function template matches}}
  42   void textIt();  // expected-note {{'textIt' declared here}}
  43 };
  44 void testMemberExpr(Foo *f) {
  45   f->TestIt();  // expected-error {{no member named 'TestIt' in 'Foo'; did you mean 'textIt'?}}
  46 }
  47
  48 void callee(double, double);
  49 void testNoCandidates() {
  50   callee(xxxxxx,   // expected-error-re {{use of undeclared identifier 'xxxxxx'{{$}}}}
  51          zzzzzz);  // expected-error-re {{use of undeclared identifier 'zzzzzz'{{$}}}}
  52 }
  53
  54 class string {};
  55 struct Item {
  56   void Nest();
  57   string text();
  58   Item* next();  // expected-note {{'next' declared here}}
  59 };
  60 void testExprFilter(Item *i) {
  61   Item *j;
  62   j = i->Next();  // expected-error {{no member named 'Next' in 'Item'; did you mean 'next'?}}
  63 }
  64
  65 // Test that initializer expressions are handled correctly and that the type
  66 // being initialized is taken into account when choosing a correction.
  67 namespace initializerCorrections {
  68 struct Node {
  69   string text() const;
  70   // Node* Next() is not implemented yet
  71 };
  72 void f(Node *node) {
  73   // text is only an edit distance of 1 from Next, but would trigger type
  74   // conversion errors if used in this initialization expression.
  75   Node *next = node->Next();  // expected-error-re {{no member named 'Next' in 'initializerCorrections::Node'{{$}}}}
  76 }
  77
  78 struct LinkedNode {
  79   LinkedNode* next();  // expected-note {{'next' declared here}}
  80   string text() const;
  81 };
  82 void f(LinkedNode *node) {
  83   // text and next are equidistant from Next, but only one results in a valid
  84   // initialization expression.
  85   LinkedNode *next = node->Next();  // expected-error {{no member named 'Next' in 'initializerCorrections::LinkedNode'; did you mean 'next'?}}
  86 }
  87
  88 struct NestedNode {
  89   NestedNode* Nest();
  90   NestedNode* next();
  91   string text() const;
  92 };
  93 void f(NestedNode *node) {
  94   // There are two equidistant, usable corrections for Next: next and Nest
  95   NestedNode *next = node->Next();  // expected-error-re {{no member named 'Next' in 'initializerCorrections::NestedNode'{{$}}}}
  96 }
  97 }
  98
  99 namespace PR21669 {
 100 void f(int *i) {
 101   // Check that arguments to a builtin with custom type checking are corrected
 102   // properly, since calls to such builtins bypass much of the normal code path
 103   // for building and checking the call.
 104   __atomic_load(i, i, something_something);  // expected-error-re {{use of undeclared identifier 'something_something'{{$}}}}
 105 }
 106 }
 107
 108 const int DefaultArg = 9;  // expected-note {{'DefaultArg' declared here}}
 109 template <int I = defaultArg> struct S {};  // expected-error {{use of undeclared identifier 'defaultArg'; did you mean 'DefaultArg'?}}
 110 S<1> s;
 111
 112 namespace foo {}
 113 void test_paren_suffix() {
 114   foo::bar({5, 6});  // expected-error-re {{no member named 'bar' in namespace 'foo'{{$}}}}
 115 #if __cplusplus <= 199711L
 116   // expected-error@-2 {{expected expression}}
 117 #endif
 118 }
 119
 120 const int kNum = 10;  // expected-note {{'kNum' declared here}}
 121 class SomeClass {
 122   int Kind;
 123 public:
 124   explicit SomeClass() : Kind(kSum) {}  // expected-error {{use of undeclared identifier 'kSum'; did you mean 'kNum'?}}
 125 };
 126
 127 // There used to be an issue with typo resolution inside overloads.
 128 struct AssertionResult { ~AssertionResult(); };
 129 AssertionResult Overload(const char *a);
 130 AssertionResult Overload(int a);
 131 void UseOverload() {
 132   // expected-note@+1 {{'result' declared here}}
 133   const char *result;
 134   // expected-error@+1 {{use of undeclared identifier 'resulta'; did you mean 'result'?}}
 135   Overload(resulta);
 136 }
 137
 138 namespace PR21925 {
 139 struct X {
 140   int get() { return 7; }  // expected-note {{'get' declared here}}
 141 };
 142 void test() {
 143   X variable;  // expected-note {{'variable' declared here}}
 144
 145   // expected-error@+2 {{use of undeclared identifier 'variableX'; did you mean 'variable'?}}
 146   // expected-error@+1 {{no member named 'getX' in 'PR21925::X'; did you mean 'get'?}}
 147   int x = variableX.getX();
 148 }
 149 }
 150
 151 namespace PR21905 {
 152 int (*a)() = (void)Z; // expected-error-re {{use of undeclared identifier 'Z'{{$}}}} \
 153                       // expected-error {{cannot initialize a variable of type 'int (*)()' with an rvalue of type 'void'}}
 154 }
 155
 156 namespace PR21947 {
 157 int blue;  // expected-note {{'blue' declared here}}
 158 __typeof blur y;  // expected-error {{use of undeclared identifier 'blur'; did you mean 'blue'?}}
 159 }
 160
 161 namespace PR22092 {
 162 a = b ? : 0;  // expected-error {{C++ requires a type specifier for all declarations}} \
 163               // expected-error-re {{use of undeclared identifier 'b'{{$}}}}
 164 }
 165
 166 extern long clock (void);
 167 struct Pointer {
 168   void set_xpos(int);
 169   void set_ypos(int);
 170 };
 171 void MovePointer(Pointer &Click, int x, int y) {  // expected-note 2 {{'Click' declared here}}
 172   click.set_xpos(x);  // expected-error {{use of undeclared identifier 'click'; did you mean 'Click'?}}
 173   click.set_ypos(x);  // expected-error {{use of undeclared identifier 'click'; did you mean 'Click'?}}
 174 }
 175
 176 namespace PR22250 {
 177 // expected-error@+4 {{use of undeclared identifier 'size_t'; did you mean 'sizeof'?}}
 178 // expected-error-re@+3 {{use of undeclared identifier 'y'{{$}}}}
 179 // expected-error-re@+2 {{use of undeclared identifier 'z'{{$}}}}
 180 // expected-error@+1 {{expected ';' after top level declarator}}
 181 int getenv_s(size_t *y, char(&z)) {}
 182 }
 183
 184 namespace PR22291 {
 185 template <unsigned I> void f() {
 186   unsigned *prio_bits_array;  // expected-note {{'prio_bits_array' declared here}}
 187   // expected-error@+1 {{use of undeclared identifier 'prio_op_array'; did you mean 'prio_bits_array'?}}
 188   __atomic_store_n(prio_op_array + I, false, __ATOMIC_RELAXED);
 189 }
 190 }
 191
 192 namespace PR22297 {
 193 double pow(double x, double y);
 194 struct TimeTicks {
 195   static void Now();  // expected-note {{'Now' declared here}}
 196 };
 197 void f() {
 198   TimeTicks::now();  // expected-error {{no member named 'now' in 'PR22297::TimeTicks'; did you mean 'Now'?}}
 199 }
 200 }
 201
 202 namespace PR23005 {
 203 void f() { int a = Unknown::b(c); }  // expected-error {{use of undeclared identifier 'Unknown'}}
 204 // expected-error@-1 {{use of undeclared identifier 'c'}}
 205 }
 206
 207 namespace PR23350 {
 208 int z = 1 ? N : ;  // expected-error {{expected expression}}
 209 // expected-error-re@-1 {{use of undeclared identifier 'N'{{$}}}}
 210 }
 211
 212 // PR 23285. This test must be at the end of the file to avoid additional,
 213 // unwanted diagnostics.
 214 // expected-error-re@+2 {{use of undeclared identifier 'uintmax_t'{{$}}}}
 215 // expected-error@+1 {{expected ';' after top level declarator}}
 216 unsigned int a = 0(uintmax_t