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37 lines
1.5 KiB
37 lines
1.5 KiB
==========
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ClangCheck
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==========
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`ClangCheck` is a small wrapper around :doc:`LibTooling` which can be used to
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do basic error checking and AST dumping.
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.. code-block:: console
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$ cat <<EOF > snippet.cc
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> void f() {
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> int a = 0
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> }
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> EOF
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$ ~/clang/build/bin/clang-check snippet.cc -ast-dump --
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Processing: /Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc.
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/Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:2:12: error: expected ';' at end of
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declaration
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int a = 0
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^
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;
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(TranslationUnitDecl 0x7ff3a3029ed0 <<invalid sloc>>
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(TypedefDecl 0x7ff3a302a410 <<invalid sloc>> __int128_t '__int128')
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(TypedefDecl 0x7ff3a302a470 <<invalid sloc>> __uint128_t 'unsigned __int128')
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(TypedefDecl 0x7ff3a302a830 <<invalid sloc>> __builtin_va_list '__va_list_tag [1]')
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(FunctionDecl 0x7ff3a302a8d0 </Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:1:1, line:3:1> f 'void (void)'
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(CompoundStmt 0x7ff3a302aa10 <line:1:10, line:3:1>
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(DeclStmt 0x7ff3a302a9f8 <line:2:3, line:3:1>
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(VarDecl 0x7ff3a302a980 <line:2:3, col:11> a 'int'
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(IntegerLiteral 0x7ff3a302a9d8 <col:11> 'int' 0))))))
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1 error generated.
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Error while processing snippet.cc.
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The '--' at the end is important as it prevents :program:`clang-check` from
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searching for a compilation database. For more information on how to setup and
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use :program:`clang-check` in a project, see :doc:`HowToSetupToolingForLLVM`.
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