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b5f8171a1b
When a '>>' token is split into two '>' tokens (in C++11 onwards), or (as an extension) when we do the same for other tokens starting with a '>', we can't just use a location pointing to the first '>' as the location of the split token, because that would result in our miscomputing the length and spelling for the token. As a consequence, for example, a refactoring replacing 'A<X>' with something else would sometimes replace one character too many, and similarly diagnostics highlighting a template-id source range would highlight one character too many. Fix this by creating an expansion range covering the first character of the '>>' token, whose spelling is '>'. For this to work, we generalize the expansion range of a macro FileID to be either a token range (the common case) or a character range (used in this new case). llvm-svn: 331155
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
// RUN: not %clang_cc1 %s -fdiagnostics-print-source-range-info 2>&1 | FileCheck %s --strict-whitespace
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template<typename T> class C {};
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template<int> class D {};
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void g() {
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// The range ending in the first > character does not extend to the second >
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// character.
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// CHECK: :{[[@LINE+3]]:5-[[@LINE+3]]:11}: error:
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// CHECK-NEXT: D<C<int>> a;
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// CHECK-NEXT: ^~~~~~{{$}}
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D<C<int>> a;
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// The range ending in the second > character does not extend to the third >
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// character.
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// CHECK: :{[[@LINE+3]]:5-[[@LINE+3]]:14}: error:
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// CHECK-NEXT: D<C<C<int>>> b;
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// CHECK-NEXT: ^~~~~~~~~{{$}}
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D<C<C<int>>> b;
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}
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template<int> int V;
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// Here, we split the >>= token into a > followed by a >=.
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// Then we split the >= token into a > followed by an =,
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// which we merge with the other = to form an ==.
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// CHECK: error: a space is required
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// CHECK-NEXT: int k = V<C<int>>==0;
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// CHECK-NEXT: ^~{{$}}
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// CHECK-NEXT: > >{{$}}
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// CHECK: error: a space is required
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// CHECK-NEXT: int k = V<C<int>>==0;
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// CHECK-NEXT: ^~{{$}}
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// CHECK-NEXT: > ={{$}}
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// CHECK: :{[[@LINE+3]]:11-[[@LINE+3]]:17}: error:
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// CHECK-NEXT: int k = V<C<int>>==0;
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// CHECK-NEXT: ^~~~~~{{$}}
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int k = V<C<int>>==0;
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template<typename> int W;
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// CHECK: :{[[@LINE+3]]:9-[[@LINE+3]]:18}{[[@LINE+3]]:20-[[@LINE+3]]:22}: error: comparison
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// CHECK-NEXT: int l = W<C<int>>==&k;
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// CHECK-NEXT: ~~~~~~~~~^ ~~{{$}}
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int l = W<C<int>>==&k;
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