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45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// Part of the Concrete Compiler Project, under the BSD3 License with Zama
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// Exceptions. See
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// https://github.com/zama-ai/concrete-compiler-internal/blob/master/LICENSE.txt
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// for license information.
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#ifndef CONCRETELANG_SUPPORT_LOGGING_H_
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#define CONCRETELANG_SUPPORT_LOGGING_H_
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#include <llvm/Support/raw_ostream.h>
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namespace mlir {
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namespace concretelang {
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// Returning references to instances of different classes `S` and `T`
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// is prohibited, even if `T` inherits from `S`. The wrapper class
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// `StreamWrap` can be initialized with a pointer to an instance of
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// `S` or any of its subclasses and acts as a proxy transparently
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// forwarding all calls to `S::operator<<`. The class thus hides the
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// dereferencing of the pointer and a reference to it can be used as a
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// replacement for a reference to `S`.
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template <class S> class StreamWrap {
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public:
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StreamWrap() = delete;
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StreamWrap(S *s) : s(s) {}
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// Forward all invocations of
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// `StreamWrap<S>::operator<<` to S::operator<<`.
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template <class T> StreamWrap<S> &operator<<(const T &v) {
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*this->s << v;
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return *this;
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}
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private:
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S *s = nullptr;
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};
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StreamWrap<llvm::raw_ostream> &log_error(void);
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StreamWrap<llvm::raw_ostream> &log_verbose(void);
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void setupLogging(bool verbose);
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bool isVerbose();
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} // namespace concretelang
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} // namespace mlir
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#endif
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