Index: tools/gn/target_generator.cc |
diff --git a/tools/gn/target_generator.cc b/tools/gn/target_generator.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..90c8fe65e33cb0b581b02595ed1aafb985b92370 |
--- /dev/null |
+++ b/tools/gn/target_generator.cc |
@@ -0,0 +1,334 @@ |
+// 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/target_generator.h" |
+ |
+#include "base/files/file_path.h" |
+#include "base/logging.h" |
+#include "tools/gn/build_settings.h" |
+#include "tools/gn/config.h" |
+#include "tools/gn/config_values_generator.h" |
+#include "tools/gn/err.h" |
+#include "tools/gn/filesystem_utils.h" |
+#include "tools/gn/functions.h" |
+#include "tools/gn/input_file.h" |
+#include "tools/gn/item_node.h" |
+#include "tools/gn/ninja_target_writer.h" |
+#include "tools/gn/parse_tree.h" |
+#include "tools/gn/scheduler.h" |
+#include "tools/gn/scope.h" |
+#include "tools/gn/target_manager.h" |
+#include "tools/gn/token.h" |
+#include "tools/gn/value.h" |
+#include "tools/gn/value_extractors.h" |
+ |
+namespace { |
+ |
+bool TypeHasConfigs(Target::OutputType type) { |
+ return type == Target::EXECUTABLE || |
+ type == Target::SHARED_LIBRARY || |
+ type == Target::STATIC_LIBRARY || |
+ type == Target::LOADABLE_MODULE; |
+} |
+ |
+bool TypeHasConfigValues(Target::OutputType type) { |
+ return type == Target::EXECUTABLE || |
+ type == Target::SHARED_LIBRARY || |
+ type == Target::STATIC_LIBRARY || |
+ type == Target::LOADABLE_MODULE; |
+} |
+ |
+bool TypeHasSources(Target::OutputType type) { |
+ return type != Target::NONE; |
+} |
+ |
+bool TypeHasData(Target::OutputType type) { |
+ return type != Target::NONE; |
+} |
+ |
+bool TypeHasDestDir(Target::OutputType type) { |
+ return type == Target::COPY_FILES; |
+} |
+ |
+bool TypeHasOutputs(Target::OutputType type) { |
+ return type == Target::CUSTOM; |
+} |
+ |
+} // namespace |
+ |
+TargetGenerator::TargetGenerator(Target* target, |
+ Scope* scope, |
+ const Token& function_token, |
+ const std::vector<Value>& args, |
+ const std::string& output_type, |
+ Err* err) |
+ : target_(target), |
+ scope_(scope), |
+ function_token_(function_token), |
+ args_(args), |
+ output_type_(output_type), |
+ err_(err), |
+ input_directory_(function_token.location().file()->dir()) { |
+} |
+ |
+TargetGenerator::~TargetGenerator() { |
+} |
+ |
+void TargetGenerator::Run() { |
+ // Output type. |
+ Target::OutputType output_type = GetOutputType(); |
+ target_->set_output_type(output_type); |
+ if (err_->has_error()) |
+ return; |
+ |
+ if (TypeHasConfigs(output_type)) { |
+ FillConfigs(); |
+ FillAllDependentConfigs(); |
+ FillDirectDependentConfigs(); |
+ } |
+ if (TypeHasSources(output_type)) |
+ FillSources(); |
+ if (TypeHasData(output_type)) |
+ FillData(); |
+ if (output_type == Target::CUSTOM) { |
+ FillScript(); |
+ FillScriptArgs(); |
+ } |
+ if (TypeHasOutputs(output_type)) |
+ FillOutputs(); |
+ FillDependencies(); // All types have dependencies. |
+ |
+ if (TypeHasConfigValues(output_type)) { |
+ ConfigValuesGenerator gen(&target_->config_values(), scope_, |
+ function_token_, input_directory_, err_); |
+ gen.Run(); |
+ if (err_->has_error()) |
+ return; |
+ } |
+ |
+ if (TypeHasDestDir(output_type)) |
+ FillDestDir(); |
+ |
+ // Set the toolchain as a dependency of the target. |
+ // TODO(brettw) currently we lock separately for each config, dep, and |
+ // toolchain we add which is bad! Do this in one lock. |
+ { |
+ ItemTree* tree = &GetBuildSettings()->item_tree(); |
+ base::AutoLock lock(tree->lock()); |
+ ItemNode* tc_node = |
+ tree->GetExistingNodeLocked(ToolchainLabelForScope(scope_)); |
+ tree->GetExistingNodeLocked(target_->label())->AddDependency(tc_node); |
+ } |
+ |
+ target_->SetGenerated(&function_token_); |
+ GetBuildSettings()->target_manager().TargetGenerationComplete( |
+ target_->label()); |
+} |
+ |
+// static |
+void TargetGenerator::GenerateTarget(Scope* scope, |
+ const Token& function_token, |
+ const std::vector<Value>& args, |
+ const std::string& output_type, |
+ Err* err) { |
+ // Name is the argument to the function. |
+ if (args.size() != 1u || args[0].type() != Value::STRING) { |
+ *err = Err(function_token, |
+ "Target generator requires one string argument.", |
+ "Otherwise I'm not sure what to call this target."); |
+ return; |
+ } |
+ |
+ // The location of the target is the directory name with no slash at the end. |
+ // FIXME(brettw) validate name. |
+ const Label& toolchain_label = ToolchainLabelForScope(scope); |
+ Label label(function_token.location().file()->dir(), |
+ args[0].string_value(), |
+ toolchain_label.dir(), toolchain_label.name()); |
+ |
+ if (g_scheduler->verbose_logging()) |
+ g_scheduler->Log("Generating target", label.GetUserVisibleName(true)); |
+ |
+ Target* t = scope->settings()->build_settings()->target_manager().GetTarget( |
+ label, function_token.range(), NULL, err); |
+ if (err->has_error()) |
+ return; |
+ |
+ TargetGenerator gen(t, scope, function_token, args, output_type, err); |
+ gen.Run(); |
+} |
+ |
+Target::OutputType TargetGenerator::GetOutputType() const { |
+ if (output_type_ == functions::kGroup) |
+ return Target::NONE; |
+ if (output_type_ == functions::kExecutable) |
+ return Target::EXECUTABLE; |
+ if (output_type_ == functions::kSharedLibrary) |
+ return Target::SHARED_LIBRARY; |
+ if (output_type_ == functions::kStaticLibrary) |
+ return Target::STATIC_LIBRARY; |
+ // TODO(brettw) what does loadable module mean? |
+ //if (output_type_ == ???) |
+ // return Target::LOADABLE_MODULE; |
+ if (output_type_ == functions::kCopy) |
+ return Target::COPY_FILES; |
+ if (output_type_ == functions::kCustom) |
+ return Target::CUSTOM; |
+ |
+ *err_ = Err(function_token_, "Not a known output type", |
+ "I am very confused."); |
+ return Target::NONE; |
+} |
+ |
+void TargetGenerator::FillGenericConfigs( |
+ const char* var_name, |
+ void (Target::*setter)(std::vector<const Config*>*)) { |
+ const Value* value = scope_->GetValue(var_name, true); |
+ if (!value) |
+ return; |
+ |
+ std::vector<Label> labels; |
+ if (!ExtractListOfLabels(*value, input_directory_, |
+ ToolchainLabelForScope(scope_), &labels, err_)) |
+ return; |
+ |
+ std::vector<const Config*> dest_configs; |
+ dest_configs.resize(labels.size()); |
+ for (size_t i = 0; i < labels.size(); i++) { |
+ dest_configs[i] = Config::GetConfig( |
+ scope_->settings(), |
+ value->list_value()[i].origin()->GetRange(), |
+ labels[i], target_, err_); |
+ if (err_->has_error()) |
+ return; |
+ } |
+ (target_->*setter)(&dest_configs); |
+} |
+ |
+void TargetGenerator::FillConfigs() { |
+ FillGenericConfigs("configs", &Target::swap_in_configs); |
+} |
+ |
+void TargetGenerator::FillAllDependentConfigs() { |
+ FillGenericConfigs("all_dependent_configs", |
+ &Target::swap_in_all_dependent_configs); |
+} |
+ |
+void TargetGenerator::FillDirectDependentConfigs() { |
+ FillGenericConfigs("direct_dependent_configs", |
+ &Target::swap_in_direct_dependent_configs); |
+} |
+ |
+void TargetGenerator::FillSources() { |
+ const Value* value = scope_->GetValue("sources", true); |
+ if (!value) |
+ return; |
+ |
+ Target::FileList dest_sources; |
+ if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_sources, |
+ err_)) |
+ return; |
+ target_->swap_in_sources(&dest_sources); |
+} |
+ |
+void TargetGenerator::FillData() { |
+ const Value* value = scope_->GetValue("data", true); |
+ if (!value) |
+ return; |
+ |
+ Target::FileList dest_data; |
+ if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_data, |
+ err_)) |
+ return; |
+ target_->swap_in_data(&dest_data); |
+} |
+ |
+void TargetGenerator::FillDependencies() { |
+ const Value* value = scope_->GetValue("deps", true); |
+ if (!value) |
+ return; |
+ |
+ std::vector<Label> labels; |
+ if (!ExtractListOfLabels(*value, input_directory_, |
+ ToolchainLabelForScope(scope_), &labels, err_)) |
+ return; |
+ |
+ std::vector<const Target*> dest_deps; |
+ dest_deps.resize(labels.size()); |
+ for (size_t i = 0; i < labels.size(); i++) { |
+ dest_deps[i] = GetBuildSettings()->target_manager().GetTarget( |
+ labels[i], value->list_value()[i].origin()->GetRange(), target_, err_); |
+ if (err_->has_error()) |
+ return; |
+ } |
+ |
+ target_->swap_in_deps(&dest_deps); |
+} |
+ |
+void TargetGenerator::FillDestDir() { |
+ // Destdir is required for all targets that use it. |
+ const Value* value = scope_->GetValue("destdir", true); |
+ if (!value) { |
+ *err_ = Err(function_token_, "This target type requires a \"destdir\"."); |
+ return; |
+ } |
+ if (!value->VerifyTypeIs(Value::STRING, err_)) |
+ return; |
+ |
+ if (!EnsureStringIsInOutputDir( |
+ GetBuildSettings()->build_dir(), |
+ value->string_value(), *value, err_)) |
+ return; |
+ target_->set_destdir(SourceDir(value->string_value())); |
+} |
+ |
+void TargetGenerator::FillScript() { |
+ // If this gets called, the target type requires a script, so error out |
+ // if it doesn't have one. |
+ const Value* value = scope_->GetValue("script", true); |
+ if (!value) { |
+ *err_ = Err(function_token_, "This target type requires a \"script\"."); |
+ return; |
+ } |
+ if (!value->VerifyTypeIs(Value::STRING, err_)) |
+ return; |
+ |
+ target_->set_script( |
+ input_directory_.ResolveRelativeFile(value->string_value())); |
+} |
+ |
+void TargetGenerator::FillScriptArgs() { |
+ const Value* value = scope_->GetValue("args", true); |
+ if (!value) |
+ return; |
+ |
+ std::vector<std::string> args; |
+ if (!ExtractListOfStringValues(*value, &args, err_)) |
+ return; |
+ target_->swap_in_script_args(&args); |
+} |
+ |
+void TargetGenerator::FillOutputs() { |
+ const Value* value = scope_->GetValue("outputs", true); |
+ if (!value) |
+ return; |
+ |
+ Target::FileList outputs; |
+ if (!ExtractListOfRelativeFiles(*value, input_directory_, &outputs, err_)) |
+ return; |
+ |
+ // Validate that outputs are in the output dir. |
+ CHECK(outputs.size() == value->list_value().size()); |
+ for (size_t i = 0; i < outputs.size(); i++) { |
+ if (!EnsureStringIsInOutputDir( |
+ GetBuildSettings()->build_dir(), |
+ outputs[i].value(), value->list_value()[i], err_)) |
+ return; |
+ } |
+ target_->swap_in_outputs(&outputs); |
+} |
+ |
+const BuildSettings* TargetGenerator::GetBuildSettings() const { |
+ return scope_->settings()->build_settings(); |
+} |