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14 | pmbaty | 1 | //===- DependencyScanningService.h - clang-scan-deps service ===-*- 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_TOOLING_DEPENDENCYSCANNING_DEPENDENCYSCANNINGSERVICE_H |
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10 | #define LLVM_CLANG_TOOLING_DEPENDENCYSCANNING_DEPENDENCYSCANNINGSERVICE_H |
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11 | |||
12 | #include "clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h" |
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13 | |||
14 | namespace clang { |
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15 | namespace tooling { |
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16 | namespace dependencies { |
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17 | |||
18 | /// The mode in which the dependency scanner will operate to find the |
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19 | /// dependencies. |
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20 | enum class ScanningMode { |
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21 | /// This mode is used to compute the dependencies by running the preprocessor |
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22 | /// over the source files. |
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23 | CanonicalPreprocessing, |
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24 | |||
25 | /// This mode is used to compute the dependencies by running the preprocessor |
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26 | /// with special kind of lexing after scanning header and source files to get |
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27 | /// the minimum necessary preprocessor directives for evaluating includes. |
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28 | DependencyDirectivesScan, |
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29 | }; |
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30 | |||
31 | /// The format that is output by the dependency scanner. |
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32 | enum class ScanningOutputFormat { |
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33 | /// This is the Makefile compatible dep format. This will include all of the |
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34 | /// deps necessary for an implicit modules build, but won't include any |
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35 | /// intermodule dependency information. |
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36 | Make, |
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37 | |||
38 | /// This outputs the full clang module dependency graph suitable for use for |
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39 | /// explicitly building modules. |
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40 | Full, |
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41 | |||
42 | /// This outputs the dependency graph for standard c++ modules in P1689R5 |
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43 | /// format. |
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44 | P1689, |
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45 | }; |
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46 | |||
47 | /// The dependency scanning service contains shared configuration and state that |
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48 | /// is used by the individual dependency scanning workers. |
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49 | class DependencyScanningService { |
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50 | public: |
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51 | DependencyScanningService(ScanningMode Mode, ScanningOutputFormat Format, |
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52 | bool OptimizeArgs = false, |
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53 | bool EagerLoadModules = false); |
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54 | |||
55 | ScanningMode getMode() const { return Mode; } |
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56 | |||
57 | ScanningOutputFormat getFormat() const { return Format; } |
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58 | |||
59 | bool canOptimizeArgs() const { return OptimizeArgs; } |
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60 | |||
61 | bool shouldEagerLoadModules() const { return EagerLoadModules; } |
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62 | |||
63 | DependencyScanningFilesystemSharedCache &getSharedCache() { |
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64 | return SharedCache; |
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65 | } |
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66 | |||
67 | private: |
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68 | const ScanningMode Mode; |
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69 | const ScanningOutputFormat Format; |
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70 | /// Whether to optimize the modules' command-line arguments. |
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71 | const bool OptimizeArgs; |
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72 | /// Whether to set up command-lines to load PCM files eagerly. |
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73 | const bool EagerLoadModules; |
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74 | /// The global file system cache. |
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75 | DependencyScanningFilesystemSharedCache SharedCache; |
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76 | }; |
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77 | |||
78 | } // end namespace dependencies |
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79 | } // end namespace tooling |
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80 | } // end namespace clang |
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81 | |||
82 | #endif // LLVM_CLANG_TOOLING_DEPENDENCYSCANNING_DEPENDENCYSCANNINGSERVICE_H |