forked from OSchip/llvm-project
141 lines
3.6 KiB
C++
141 lines
3.6 KiB
C++
//===--- Query.h - clang-query ----------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_QUERY_QUERY_H
|
|
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_QUERY_QUERY_H
|
|
|
|
#include "clang/ASTMatchers/Dynamic/VariantValue.h"
|
|
#include "llvm/ADT/IntrusiveRefCntPtr.h"
|
|
#include "llvm/ADT/Optional.h"
|
|
#include <string>
|
|
|
|
namespace clang {
|
|
namespace query {
|
|
|
|
enum OutputKind {
|
|
OK_Diag,
|
|
OK_Print,
|
|
OK_Dump
|
|
};
|
|
|
|
enum QueryKind {
|
|
QK_Invalid,
|
|
QK_NoOp,
|
|
QK_Help,
|
|
QK_Let,
|
|
QK_Match,
|
|
QK_SetBool,
|
|
QK_SetOutputKind,
|
|
QK_Quit
|
|
};
|
|
|
|
class QuerySession;
|
|
|
|
struct Query : llvm::RefCountedBase<Query> {
|
|
Query(QueryKind Kind) : Kind(Kind) {}
|
|
virtual ~Query();
|
|
|
|
/// Perform the query on \p QS and print output to \p OS.
|
|
///
|
|
/// \return false if an error occurs, otherwise return true.
|
|
virtual bool run(llvm::raw_ostream &OS, QuerySession &QS) const = 0;
|
|
|
|
const QueryKind Kind;
|
|
};
|
|
|
|
typedef llvm::IntrusiveRefCntPtr<Query> QueryRef;
|
|
|
|
/// Any query which resulted in a parse error. The error message is in ErrStr.
|
|
struct InvalidQuery : Query {
|
|
InvalidQuery(const Twine &ErrStr) : Query(QK_Invalid), ErrStr(ErrStr.str()) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
std::string ErrStr;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_Invalid; }
|
|
};
|
|
|
|
/// No-op query (i.e. a blank line).
|
|
struct NoOpQuery : Query {
|
|
NoOpQuery() : Query(QK_NoOp) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_NoOp; }
|
|
};
|
|
|
|
/// Query for "help".
|
|
struct HelpQuery : Query {
|
|
HelpQuery() : Query(QK_Help) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_Help; }
|
|
};
|
|
|
|
/// Query for "quit".
|
|
struct QuitQuery : Query {
|
|
QuitQuery() : Query(QK_Quit) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_Quit; }
|
|
};
|
|
|
|
/// Query for "match MATCHER".
|
|
struct MatchQuery : Query {
|
|
MatchQuery(const ast_matchers::dynamic::DynTypedMatcher &Matcher)
|
|
: Query(QK_Match), Matcher(Matcher) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
ast_matchers::dynamic::DynTypedMatcher Matcher;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_Match; }
|
|
};
|
|
|
|
struct LetQuery : Query {
|
|
LetQuery(StringRef Name, const ast_matchers::dynamic::VariantValue &Value)
|
|
: Query(QK_Let), Name(Name), Value(Value) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override;
|
|
|
|
std::string Name;
|
|
ast_matchers::dynamic::VariantValue Value;
|
|
|
|
static bool classof(const Query *Q) { return Q->Kind == QK_Let; }
|
|
};
|
|
|
|
template <typename T> struct SetQueryKind {};
|
|
|
|
template <> struct SetQueryKind<bool> {
|
|
static const QueryKind value = QK_SetBool;
|
|
};
|
|
|
|
template <> struct SetQueryKind<OutputKind> {
|
|
static const QueryKind value = QK_SetOutputKind;
|
|
};
|
|
|
|
/// Query for "set VAR VALUE".
|
|
template <typename T> struct SetQuery : Query {
|
|
SetQuery(T QuerySession::*Var, T Value)
|
|
: Query(SetQueryKind<T>::value), Var(Var), Value(Value) {}
|
|
bool run(llvm::raw_ostream &OS, QuerySession &QS) const override {
|
|
QS.*Var = Value;
|
|
return true;
|
|
}
|
|
|
|
static bool classof(const Query *Q) {
|
|
return Q->Kind == SetQueryKind<T>::value;
|
|
}
|
|
|
|
T QuerySession::*Var;
|
|
T Value;
|
|
};
|
|
|
|
} // namespace query
|
|
} // namespace clang
|
|
|
|
#endif
|