230 lines
7.3 KiB
C++
230 lines
7.3 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "tools/gn/target_generator.h"
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#include "tools/gn/binary_target_generator.h"
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#include "tools/gn/build_settings.h"
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#include "tools/gn/config.h"
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#include "tools/gn/copy_target_generator.h"
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#include "tools/gn/err.h"
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#include "tools/gn/functions.h"
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#include "tools/gn/group_target_generator.h"
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#include "tools/gn/item_node.h"
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#include "tools/gn/parse_tree.h"
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#include "tools/gn/scheduler.h"
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#include "tools/gn/scope.h"
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#include "tools/gn/script_target_generator.h"
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#include "tools/gn/target_manager.h"
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#include "tools/gn/token.h"
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#include "tools/gn/value.h"
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#include "tools/gn/value_extractors.h"
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#include "tools/gn/variables.h"
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TargetGenerator::TargetGenerator(Target* target,
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Scope* scope,
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const Token& function_token,
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Err* err)
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: target_(target),
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scope_(scope),
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function_token_(function_token),
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err_(err),
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input_directory_(function_token.location().file()->dir()) {
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}
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TargetGenerator::~TargetGenerator() {
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}
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void TargetGenerator::Run() {
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// All target types use these.
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FillDependentConfigs();
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FillData();
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FillDependencies();
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// To type-specific generation.
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DoRun();
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// Mark the target as complete.
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if (!err_->has_error()) {
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target_->SetGenerated(&function_token_);
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GetBuildSettings()->target_manager().TargetGenerationComplete(
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target_->label(), err_);
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}
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}
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// static
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void TargetGenerator::GenerateTarget(Scope* scope,
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const Token& function_token,
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const std::vector<Value>& args,
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const std::string& output_type,
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Err* err) {
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// Name is the argument to the function.
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if (args.size() != 1u || args[0].type() != Value::STRING) {
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*err = Err(function_token,
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"Target generator requires one string argument.",
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"Otherwise I'm not sure what to call this target.");
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return;
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}
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// The location of the target is the directory name with no slash at the end.
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// FIXME(brettw) validate name.
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const Label& toolchain_label = ToolchainLabelForScope(scope);
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Label label(function_token.location().file()->dir(),
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args[0].string_value(),
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toolchain_label.dir(), toolchain_label.name());
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if (g_scheduler->verbose_logging())
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g_scheduler->Log("Generating target", label.GetUserVisibleName(true));
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Target* target =
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scope->settings()->build_settings()->target_manager().GetTarget(
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label, function_token.range(), NULL, err);
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if (err->has_error())
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return;
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// Create and call out to the proper generator.
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if (output_type == functions::kCopy) {
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CopyTargetGenerator generator(target, scope, function_token, err);
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generator.Run();
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} else if (output_type == functions::kCustom) {
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ScriptTargetGenerator generator(target, scope, function_token, err);
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generator.Run();
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} else if (output_type == functions::kExecutable) {
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BinaryTargetGenerator generator(target, scope, function_token,
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Target::EXECUTABLE, err);
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generator.Run();
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} else if (output_type == functions::kGroup) {
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GroupTargetGenerator generator(target, scope, function_token, err);
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generator.Run();
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} else if (output_type == functions::kSharedLibrary) {
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BinaryTargetGenerator generator(target, scope, function_token,
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Target::SHARED_LIBRARY, err);
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generator.Run();
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} else if (output_type == functions::kStaticLibrary) {
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BinaryTargetGenerator generator(target, scope, function_token,
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Target::STATIC_LIBRARY, err);
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generator.Run();
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} else {
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*err = Err(function_token, "Not a known output type",
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"I am very confused.");
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}
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}
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const BuildSettings* TargetGenerator::GetBuildSettings() const {
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return scope_->settings()->build_settings();
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}
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void TargetGenerator::FillSources() {
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const Value* value = scope_->GetValue(variables::kSources, true);
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if (!value)
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return;
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Target::FileList dest_sources;
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if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_sources,
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err_))
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return;
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target_->swap_in_sources(&dest_sources);
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}
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void TargetGenerator::FillConfigs() {
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FillGenericConfigs(variables::kConfigs, &Target::swap_in_configs);
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}
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void TargetGenerator::FillDependentConfigs() {
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FillGenericConfigs(variables::kAllDependentConfigs,
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&Target::swap_in_all_dependent_configs);
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FillGenericConfigs(variables::kDirectDependentConfigs,
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&Target::swap_in_direct_dependent_configs);
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}
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void TargetGenerator::FillData() {
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// TODO(brettW) hook this up to the constant when we have cleaned up
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// how data files are used.
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const Value* value = scope_->GetValue("data", true);
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if (!value)
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return;
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Target::FileList dest_data;
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if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_data,
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err_))
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return;
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target_->swap_in_data(&dest_data);
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}
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void TargetGenerator::FillDependencies() {
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FillGenericDeps(variables::kDeps, &Target::swap_in_deps);
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FillGenericDeps(variables::kDatadeps, &Target::swap_in_datadeps);
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}
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void TargetGenerator::SetToolchainDependency() {
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// TODO(brettw) currently we lock separately for each config, dep, and
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// toolchain we add which is bad! Do this in one lock.
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ItemTree* tree = &GetBuildSettings()->item_tree();
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base::AutoLock lock(tree->lock());
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ItemNode* tc_node =
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tree->GetExistingNodeLocked(ToolchainLabelForScope(scope_));
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tree->GetExistingNodeLocked(target_->label())->AddDependency(
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GetBuildSettings(), function_token_.range(), tc_node, err_);
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}
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void TargetGenerator::FillGenericConfigs(
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const char* var_name,
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void (Target::*setter)(std::vector<const Config*>*)) {
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const Value* value = scope_->GetValue(var_name, true);
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if (!value)
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return;
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std::vector<Label> labels;
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if (!ExtractListOfLabels(*value, input_directory_,
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ToolchainLabelForScope(scope_), &labels, err_))
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return;
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std::vector<const Config*> dest_configs;
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dest_configs.resize(labels.size());
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for (size_t i = 0; i < labels.size(); i++) {
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dest_configs[i] = Config::GetConfig(
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scope_->settings(),
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value->list_value()[i].origin()->GetRange(),
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labels[i], target_, err_);
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if (err_->has_error())
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return;
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}
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(target_->*setter)(&dest_configs);
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}
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void TargetGenerator::FillGenericDeps(
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const char* var_name,
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void (Target::*setter)(std::vector<const Target*>*)) {
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const Value* value = scope_->GetValue(var_name, true);
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if (!value)
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return;
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std::vector<Label> labels;
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if (!ExtractListOfLabels(*value, input_directory_,
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ToolchainLabelForScope(scope_), &labels, err_))
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return;
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std::vector<const Target*> dest_deps;
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dest_deps.resize(labels.size());
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for (size_t i = 0; i < labels.size(); i++) {
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dest_deps[i] = GetBuildSettings()->target_manager().GetTarget(
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labels[i], value->list_value()[i].origin()->GetRange(), target_, err_);
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if (err_->has_error())
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return;
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}
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(target_->*setter)(&dest_deps);
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}
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