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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "tools/gn/config_values_generator.h"
#include "base/strings/string_util.h"
#include "tools/gn/config_values.h"
#include "tools/gn/scope.h"
#include "tools/gn/settings.h"
#include "tools/gn/value.h"
#include "tools/gn/value_extractors.h"
#include "tools/gn/variables.h"
namespace {
void GetStringList(Scope* scope,
const char* var_name,
ConfigValues* config_values,
std::vector<std::string>& (ConfigValues::*accessor)(),
Err* err) {
const Value* value = scope->GetValue(var_name, true);
if (!value)
return; // No value, empty input and succeed.
ExtractListOfStringValues(*value, &(config_values->*accessor)(), err);
}
void GetDirList(Scope* scope,
const char* var_name,
ConfigValues* config_values,
const SourceDir input_dir,
std::vector<SourceDir>& (ConfigValues::*accessor)(),
Err* err) {
const Value* value = scope->GetValue(var_name, true);
if (!value)
return; // No value, empty input and succeed.
std::vector<SourceDir> result;
ExtractListOfRelativeDirs(scope->settings()->build_settings(), *value,
input_dir, &result, err);
(config_values->*accessor)().swap(result);
}
} // namespace
ConfigValuesGenerator::ConfigValuesGenerator(ConfigValues* dest_values,
Scope* scope,
const SourceDir& input_dir,
Err* err)
: config_values_(dest_values),
scope_(scope),
input_dir_(input_dir),
err_(err) {}
ConfigValuesGenerator::~ConfigValuesGenerator() = default;
void ConfigValuesGenerator::Run() {
#define FILL_STRING_CONFIG_VALUE(name) \
GetStringList(scope_, #name, config_values_, &ConfigValues::name, err_);
#define FILL_DIR_CONFIG_VALUE(name) \
GetDirList(scope_, #name, config_values_, input_dir_, &ConfigValues::name, \
err_);
FILL_STRING_CONFIG_VALUE(arflags)
FILL_STRING_CONFIG_VALUE(asmflags)
FILL_STRING_CONFIG_VALUE(cflags)
FILL_STRING_CONFIG_VALUE(cflags_c)
FILL_STRING_CONFIG_VALUE(cflags_cc)
FILL_STRING_CONFIG_VALUE(cflags_objc)
FILL_STRING_CONFIG_VALUE(cflags_objcc)
FILL_STRING_CONFIG_VALUE(defines)
FILL_DIR_CONFIG_VALUE(include_dirs)
FILL_STRING_CONFIG_VALUE(ldflags)
FILL_DIR_CONFIG_VALUE(lib_dirs)
#undef FILL_STRING_CONFIG_VALUE
#undef FILL_DIR_CONFIG_VALUE
// Inputs
const Value* inputs_value = scope_->GetValue(variables::kInputs, true);
if (inputs_value) {
ExtractListOfRelativeFiles(scope_->settings()->build_settings(),
*inputs_value, input_dir_,
&config_values_->inputs(), err_);
}
// Libs
const Value* libs_value = scope_->GetValue("libs", true);
if (libs_value) {
ExtractListOfLibs(scope_->settings()->build_settings(), *libs_value,
input_dir_, &config_values_->libs(), err_);
}
// Precompiled headers.
const Value* precompiled_header_value =
scope_->GetValue(variables::kPrecompiledHeader, true);
if (precompiled_header_value) {
if (!precompiled_header_value->VerifyTypeIs(Value::STRING, err_))
return;
// Check for common errors. This is a string and not a file.
const std::string& pch_string = precompiled_header_value->string_value();
if (base::StartsWith(pch_string, "//", base::CompareCase::SENSITIVE)) {
*err_ = Err(
*precompiled_header_value, "This precompiled_header value is wrong.",
"You need to specify a string that the compiler will match against\n"
"the #include lines rather than a GN-style file name.\n");
return;
}
config_values_->set_precompiled_header(pch_string);
}
const Value* precompiled_source_value =
scope_->GetValue(variables::kPrecompiledSource, true);
if (precompiled_source_value) {
config_values_->set_precompiled_source(input_dir_.ResolveRelativeFile(
*precompiled_source_value, err_,
scope_->settings()->build_settings()->root_path_utf8()));
if (err_->has_error())
return;
}
}
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