Home | History | Annotate | Download | only in gn 
      1 // Copyright (c) 2013 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 #include "tools/gn/config_values_generator.h"
      6 
      7 #include "tools/gn/config_values.h"
      8 #include "tools/gn/scope.h"
      9 #include "tools/gn/value.h"
     10 #include "tools/gn/value_extractors.h"
     11 
     12 namespace {
     13 
     14 void GetStringList(
     15     Scope* scope,
     16     const char* var_name,
     17     ConfigValues* config_values,
     18     void (ConfigValues::* swapper_inner)(std::vector<std::string>*),
     19     Err* err) {
     20   const Value* value = scope->GetValue(var_name, true);
     21   if (!value)
     22     return;  // No value, empty input and succeed.
     23 
     24   std::vector<std::string> result;
     25   ExtractListOfStringValues(*value, &result, err);
     26   (config_values->*swapper_inner)(&result);
     27 }
     28 
     29 }  // namespace
     30 
     31 ConfigValuesGenerator::ConfigValuesGenerator(ConfigValues* dest_values,
     32                                              Scope* scope,
     33                                              const Token& function_token,
     34                                              const SourceDir& input_dir,
     35                                              Err* err)
     36     : config_values_(dest_values),
     37       scope_(scope),
     38       function_token_(function_token),
     39       input_dir_(input_dir),
     40       err_(err) {
     41 }
     42 
     43 ConfigValuesGenerator::~ConfigValuesGenerator() {
     44 }
     45 
     46 void ConfigValuesGenerator::Run() {
     47   FillIncludes();
     48 
     49 #define FILL_CONFIG_VALUE(name) \
     50     GetStringList(scope_, #name, config_values_, \
     51                   &ConfigValues::swap_in_##name, err_);
     52 
     53   FILL_CONFIG_VALUE(defines)
     54   FILL_CONFIG_VALUE(cflags)
     55   FILL_CONFIG_VALUE(cflags_c)
     56   FILL_CONFIG_VALUE(cflags_cc)
     57   FILL_CONFIG_VALUE(cflags_objc)
     58   FILL_CONFIG_VALUE(cflags_objcc)
     59   FILL_CONFIG_VALUE(ldflags)
     60 
     61 #undef FILL_CONFIG_VALUE
     62 }
     63 
     64 void ConfigValuesGenerator::FillIncludes() {
     65   const Value* value = scope_->GetValue("includes", true);
     66   if (!value)
     67     return;  // No value, empty input and succeed.
     68 
     69   std::vector<SourceDir> includes;
     70   if (!ExtractListOfRelativeDirs(*value, input_dir_, &includes, err_))
     71     return;
     72   config_values_->swap_in_includes(&includes);
     73 }
     74