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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
//===--- InputInfo.h - Input Source & Type Information ----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_DRIVER_INPUTINFO_H
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#define LLVM_CLANG_LIB_DRIVER_INPUTINFO_H
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#include "clang/Driver/Action.h"
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#include "clang/Driver/Types.h"
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#include "llvm/Option/Arg.h"
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#include <cassert>
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#include <string>
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namespace clang {
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namespace driver {
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/// InputInfo - Wrapper for information about an input source.
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class InputInfo {
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// FIXME: The distinction between filenames and inputarg here is
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// gross; we should probably drop the idea of a "linker
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// input". Doing so means tweaking pipelining to still create link
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// steps when it sees linker inputs (but not treat them as
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// arguments), and making sure that arguments get rendered
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// correctly.
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enum Class {
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Nothing,
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Filename,
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InputArg,
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Pipe
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};
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union {
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const char *Filename;
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const llvm::opt::Arg *InputArg;
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} Data;
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Class Kind;
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const Action* Act;
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types::ID Type;
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const char *BaseInput;
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static types::ID GetActionType(const Action *A) {
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return A != nullptr ? A->getType() : types::TY_Nothing;
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}
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public:
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InputInfo() : InputInfo(nullptr, nullptr) {}
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InputInfo(const Action *A, const char *_BaseInput)
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: Kind(Nothing), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) {}
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InputInfo(types::ID _Type, const char *_Filename, const char *_BaseInput)
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: Kind(Filename), Act(nullptr), Type(_Type), BaseInput(_BaseInput) {
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Data.Filename = _Filename;
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}
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InputInfo(const Action *A, const char *_Filename, const char *_BaseInput)
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: Kind(Filename), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) {
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Data.Filename = _Filename;
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}
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InputInfo(types::ID _Type, const llvm::opt::Arg *_InputArg,
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const char *_BaseInput)
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: Kind(InputArg), Act(nullptr), Type(_Type), BaseInput(_BaseInput) {
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Data.InputArg = _InputArg;
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}
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InputInfo(const Action *A, const llvm::opt::Arg *_InputArg,
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const char *_BaseInput)
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: Kind(InputArg), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) {
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Data.InputArg = _InputArg;
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}
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bool isNothing() const { return Kind == Nothing; }
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bool isFilename() const { return Kind == Filename; }
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bool isInputArg() const { return Kind == InputArg; }
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types::ID getType() const { return Type; }
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const char *getBaseInput() const { return BaseInput; }
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/// The action for which this InputInfo was created. May be null.
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const Action *getAction() const { return Act; }
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void setAction(const Action *A) { Act = A; }
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const char *getFilename() const {
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assert(isFilename() && "Invalid accessor.");
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return Data.Filename;
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}
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const llvm::opt::Arg &getInputArg() const {
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assert(isInputArg() && "Invalid accessor.");
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return *Data.InputArg;
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}
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/// getAsString - Return a string name for this input, for
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/// debugging.
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std::string getAsString() const {
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if (isFilename())
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return std::string("\"") + getFilename() + '"';
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else if (isInputArg())
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return "(input arg)";
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else
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return "(nothing)";
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}
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};
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} // end namespace driver
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} // end namespace clang
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#endif
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