reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -ast-dump %s | FileCheck %s

// We are checking that implicit casts don't get marked with 'part_of_explicit_cast',
// while in explicit casts, the implicitly-inserted implicit casts are marked with 'part_of_explicit_cast'

unsigned char implicitcast_0(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_0 'unsigned char (unsigned int)'{{$}}
  // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return x;
}

signed char implicitcast_1(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_1 'signed char (unsigned int)'{{$}}
  // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return x;
}

unsigned char implicitcast_2(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_2 'unsigned char (int)'{{$}}
  // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return x;
}

signed char implicitcast_3(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_3 'signed char (int)'{{$}}
  // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return x;
}

//----------------------------------------------------------------------------//

unsigned char cstylecast_0(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_0 'unsigned char (unsigned int)'{{$}}
  // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return (unsigned char)x;
}

signed char cstylecast_1(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_1 'signed char (unsigned int)'{{$}}
  // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return (signed char)x;
}

unsigned char cstylecast_2(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_2 'unsigned char (int)'{{$}}
  // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return (unsigned char)x;
}

signed char cstylecast_3(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_3 'signed char (int)'{{$}}
  // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return (signed char)x;
}

//----------------------------------------------------------------------------//

unsigned char cxxstaticcast_0(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_0 'unsigned char (unsigned int)'{{$}}
  // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'unsigned char' static_cast<unsigned char> <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return static_cast<unsigned char>(x);
}

signed char cxxstaticcast_1(unsigned int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_1 'signed char (unsigned int)'{{$}}
  // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'signed char' static_cast<signed char> <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  return static_cast<signed char>(x);
}

unsigned char cxxstaticcast_2(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_2 'unsigned char (int)'{{$}}
  // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'unsigned char' static_cast<unsigned char> <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return static_cast<unsigned char>(x);
}

signed char cxxstaticcast_3(signed int x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_3 'signed char (int)'{{$}}
  // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'signed char' static_cast<signed char> <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  return static_cast<signed char>(x);
}

//----------------------------------------------------------------------------//

using UnsignedChar = unsigned char;
using SignedChar = signed char;
using UnsignedInt = unsigned int;
using SignedInt = signed int;

UnsignedChar cxxfunctionalcast_0(UnsignedInt x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_0 'UnsignedChar (UnsignedInt)'{{$}}
  // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' functional cast to UnsignedChar <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' lvalue ParmVar {{.*}} 'x' 'UnsignedInt':'unsigned int'{{$}}
  return UnsignedChar(x);
}

SignedChar cxxfunctionalcast_1(UnsignedInt x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_1 'SignedChar (UnsignedInt)'{{$}}
  // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' functional cast to SignedChar <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' lvalue ParmVar {{.*}} 'x' 'UnsignedInt':'unsigned int'{{$}}
  return SignedChar(x);
}

UnsignedChar cxxfunctionalcast_2(SignedInt x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_2 'UnsignedChar (SignedInt)'{{$}}
  // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' functional cast to UnsignedChar <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' lvalue ParmVar {{.*}} 'x' 'SignedInt':'int'{{$}}
  return UnsignedChar(x);
}

SignedChar cxxfunctionalcast_3(SignedInt x) {
  // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_3 'SignedChar (SignedInt)'{{$}}
  // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' functional cast to SignedChar <NoOp>{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' <IntegralCast> part_of_explicit_cast{{$}}
  // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' <LValueToRValue> part_of_explicit_cast{{$}}
  // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' lvalue ParmVar {{.*}} 'x' 'SignedInt':'int'{{$}}
  return SignedChar(x);
}