tools/gn/substitution_type.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef TOOLS_GN_SUBSTITUTION_TYPE_H_
   6 #define TOOLS_GN_SUBSTITUTION_TYPE_H_
   7
   8 #include <vector>
   9
  10 class Err;
  11 class ParseNode;
  12
  13 // Keep kSubstitutionNames, kSubstitutionNinjaNames and the
  14 // IsValid*Substutition functions in sync if you change anything here.
  15 enum SubstitutionType {
  16   SUBSTITUTION_LITERAL = 0,
  17
  18   // The index of the first pattern. To loop overal all patterns, go from here
  19   // until NUM_TYPES.
  20   SUBSTITUTION_FIRST_PATTERN,
  21
  22   // These map to Ninja's {in} and {out} variables.
  23   SUBSTITUTION_SOURCE = SUBSTITUTION_FIRST_PATTERN,  // {{source}}
  24   SUBSTITUTION_OUTPUT,  // {{output}}
  25
  26   // Valid for all compiler tools.
  27   SUBSTITUTION_SOURCE_NAME_PART,  // {{source_name_part}}
  28   SUBSTITUTION_SOURCE_FILE_PART,  // {{source_file_part}}
  29   SUBSTITUTION_SOURCE_DIR,  // {{source_dir}}
  30   SUBSTITUTION_SOURCE_ROOT_RELATIVE_DIR,  // {{root_relative_dir}}
  31   SUBSTITUTION_SOURCE_GEN_DIR,  // {{source_gen_dir}}
  32   SUBSTITUTION_SOURCE_OUT_DIR,  // {{source_out_dir}}
  33
  34   // Valid for all compiler and linker tools. These depend on the target and
  35   // no not vary on a per-file basis.
  36   SUBSTITUTION_LABEL,  // {{label}}
  37   SUBSTITUTION_ROOT_GEN_DIR,  // {{root_gen_dir}}
  38   SUBSTITUTION_ROOT_OUT_DIR,  // {{root_out_dir}}
  39   SUBSTITUTION_TARGET_GEN_DIR,  // {{target_gen_dir}}
  40   SUBSTITUTION_TARGET_OUT_DIR,  // {{target_out_dir}}
  41   SUBSTITUTION_TARGET_OUTPUT_NAME,  // {{target_output_name}}
  42
  43   // Valid for compiler tools.
  44   SUBSTITUTION_CFLAGS,  // {{cflags}}
  45   SUBSTITUTION_CFLAGS_C,  // {{cflags_c}}
  46   SUBSTITUTION_CFLAGS_CC,  // {{cflags_cc}}
  47   SUBSTITUTION_CFLAGS_OBJC,  // {{cflags_objc}}
  48   SUBSTITUTION_CFLAGS_OBJCC,  // {{cflags_objcc}}
  49   SUBSTITUTION_DEFINES,  // {{defines}}
  50   SUBSTITUTION_INCLUDE_DIRS,  // {{include_dirs}}
  51
  52   // Valid for linker tools.
  53   SUBSTITUTION_LINKER_INPUTS,  // {{inputs}}
  54   SUBSTITUTION_LINKER_INPUTS_NEWLINE,  // {{inputs_newline}}
  55   SUBSTITUTION_LDFLAGS,  // {{ldflags}}
  56   SUBSTITUTION_LIBS,  // {{libs}}
  57   SUBSTITUTION_OUTPUT_EXTENSION,  // {{output_extension}}
  58   SUBSTITUTION_SOLIBS,  // {{solibs}}
  59
  60   SUBSTITUTION_NUM_TYPES  // Must be last.
  61 };
  62
  63 // An array of size SUBSTITUTION_NUM_TYPES that lists the names of the
  64 // substitution patterns, including the curly braces. So, for example,
  65 // kSubstitutionNames[SUBSTITUTION_SOURCE] == "{{source}}".
  66 extern const char* kSubstitutionNames[SUBSTITUTION_NUM_TYPES];
  67
  68 // Ninja variables corresponding to each substitution. These do not include
  69 // the dollar sign.
  70 extern const char* kSubstitutionNinjaNames[SUBSTITUTION_NUM_TYPES];
  71
  72 // A wrapper around an array if flags indicating whether a given substitution
  73 // type is required in some context. By convention, the LITERAL type bit is
  74 // not set.
  75 struct SubstitutionBits {
  76   SubstitutionBits();
  77
  78   // Merges any bits set in the given "other" to this one. This object will
  79   // then be the union of all bits in the two lists.
  80   void MergeFrom(const SubstitutionBits& other);
  81
  82   // Converts the substitution type bitfield (with a true set for each required
  83   // item) to a vector of the types listed. Does not include LITERAL.
  84   void FillVector(std::vector<SubstitutionType>* vect) const;
  85
  86   bool used[SUBSTITUTION_NUM_TYPES];
  87 };
  88
  89 // Returns true if the given substitution pattern references the output
  90 // directory. This is used to check strings that begin with a substitution to
  91 // verify that the produce a file in the output directory.
  92 bool SubstitutionIsInOutputDir(SubstitutionType type);
  93
  94 // Returns true if the given substitution is valid for the named purpose.
  95 bool IsValidSourceSubstitution(SubstitutionType type);
  96 // Both compiler and linker tools.
  97 bool IsValidToolSubstutition(SubstitutionType type);
  98 bool IsValidCompilerSubstitution(SubstitutionType type);
  99 bool IsValidCompilerOutputsSubstitution(SubstitutionType type);
 100 bool IsValidLinkerSubstitution(SubstitutionType type);
 101 bool IsValidLinkerOutputsSubstitution(SubstitutionType type);
 102 bool IsValidCopySubstitution(SubstitutionType type);
 103
 104 // Like the "IsValid..." version above but checks a list of types and sets a
 105 // an error blaming the given source if the test fails.
 106 bool EnsureValidSourcesSubstitutions(
 107     const std::vector<SubstitutionType>& types,
 108     const ParseNode* origin,
 109     Err* err);
 110
 111 #endif  // TOOLS_GN_SUBSTITUTION_TYPE_H_