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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--- InputInfo.h - Input Source & Type Information ----------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |||
| 9 | #ifndef LLVM_CLANG_DRIVER_INPUTINFO_H |
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| 10 | #define LLVM_CLANG_DRIVER_INPUTINFO_H |
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| 11 | |||
| 12 | #include "clang/Driver/Action.h" |
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| 13 | #include "clang/Driver/Types.h" |
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| 14 | #include "llvm/Option/Arg.h" |
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| 15 | #include <cassert> |
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| 16 | #include <string> |
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| 17 | |||
| 18 | namespace clang { |
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| 19 | namespace driver { |
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| 20 | |||
| 21 | /// InputInfo - Wrapper for information about an input source. |
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| 22 | class InputInfo { |
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| 23 | // FIXME: The distinction between filenames and inputarg here is |
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| 24 | // gross; we should probably drop the idea of a "linker |
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| 25 | // input". Doing so means tweaking pipelining to still create link |
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| 26 | // steps when it sees linker inputs (but not treat them as |
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| 27 | // arguments), and making sure that arguments get rendered |
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| 28 | // correctly. |
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| 29 | enum Class { |
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| 30 | Nothing, |
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| 31 | Filename, |
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| 32 | InputArg, |
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| 33 | Pipe |
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| 34 | }; |
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| 35 | |||
| 36 | union { |
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| 37 | const char *Filename; |
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| 38 | const llvm::opt::Arg *InputArg; |
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| 39 | } Data; |
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| 40 | Class Kind; |
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| 41 | const Action* Act; |
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| 42 | types::ID Type; |
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| 43 | const char *BaseInput; |
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| 44 | |||
| 45 | static types::ID GetActionType(const Action *A) { |
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| 46 | return A != nullptr ? A->getType() : types::TY_Nothing; |
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| 47 | } |
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| 48 | |||
| 49 | public: |
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| 50 | InputInfo() : InputInfo(nullptr, nullptr) {} |
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| 51 | InputInfo(const Action *A, const char *_BaseInput) |
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| 52 | : Kind(Nothing), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) {} |
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| 53 | |||
| 54 | InputInfo(types::ID _Type, const char *_Filename, const char *_BaseInput) |
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| 55 | : Kind(Filename), Act(nullptr), Type(_Type), BaseInput(_BaseInput) { |
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| 56 | Data.Filename = _Filename; |
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| 57 | } |
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| 58 | InputInfo(const Action *A, const char *_Filename, const char *_BaseInput) |
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| 59 | : Kind(Filename), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) { |
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| 60 | Data.Filename = _Filename; |
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| 61 | } |
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| 62 | |||
| 63 | InputInfo(types::ID _Type, const llvm::opt::Arg *_InputArg, |
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| 64 | const char *_BaseInput) |
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| 65 | : Kind(InputArg), Act(nullptr), Type(_Type), BaseInput(_BaseInput) { |
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| 66 | Data.InputArg = _InputArg; |
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| 67 | } |
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| 68 | InputInfo(const Action *A, const llvm::opt::Arg *_InputArg, |
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| 69 | const char *_BaseInput) |
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| 70 | : Kind(InputArg), Act(A), Type(GetActionType(A)), BaseInput(_BaseInput) { |
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| 71 | Data.InputArg = _InputArg; |
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| 72 | } |
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| 73 | |||
| 74 | bool isNothing() const { return Kind == Nothing; } |
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| 75 | bool isFilename() const { return Kind == Filename; } |
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| 76 | bool isInputArg() const { return Kind == InputArg; } |
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| 77 | types::ID getType() const { return Type; } |
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| 78 | const char *getBaseInput() const { return BaseInput; } |
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| 79 | /// The action for which this InputInfo was created. May be null. |
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| 80 | const Action *getAction() const { return Act; } |
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| 81 | void setAction(const Action *A) { Act = A; } |
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| 82 | |||
| 83 | const char *getFilename() const { |
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| 84 | assert(isFilename() && "Invalid accessor."); |
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| 85 | return Data.Filename; |
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| 86 | } |
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| 87 | const llvm::opt::Arg &getInputArg() const { |
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| 88 | assert(isInputArg() && "Invalid accessor."); |
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| 89 | return *Data.InputArg; |
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| 90 | } |
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| 91 | |||
| 92 | /// getAsString - Return a string name for this input, for |
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| 93 | /// debugging. |
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| 94 | std::string getAsString() const { |
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| 95 | if (isFilename()) |
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| 96 | return std::string("\"") + getFilename() + '"'; |
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| 97 | else if (isInputArg()) |
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| 98 | return "(input arg)"; |
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| 99 | else |
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| 100 | return "(nothing)"; |
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| 101 | } |
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| 102 | }; |
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| 103 | |||
| 104 | } // end namespace driver |
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| 105 | } // end namespace clang |
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| 106 | |||
| 107 | #endif |