#define TOOLS_GN_TOOLCHAIN_H_
#include "base/compiler_specific.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
#include "base/strings/string_piece.h"
#include "tools/gn/item.h"
#include "tools/gn/label_ptr.h"
#include "tools/gn/scope.h"
+#include "tools/gn/source_file_type.h"
+#include "tools/gn/substitution_type.h"
+#include "tools/gn/tool.h"
#include "tools/gn/value.h"
// Holds information on a specific toolchain. This data is filled in when we
// before generating the build for that target.
//
// Note on threadsafety: The label of the toolchain never changes so can
-// safetly be accessed from any thread at any time (we do this when asking for
+// safely be accessed from any thread at any time (we do this when asking for
// the toolchain name). But the values in the toolchain do, so these can't
// be accessed until this Item is resolved.
class Toolchain : public Item {
static const char* kToolStamp;
static const char* kToolCopy;
- struct Tool {
- Tool();
- ~Tool();
-
- std::string command;
- std::string depfile;
- std::string depsformat;
- std::string description;
- std::string lib_dir_prefix;
- std::string lib_prefix;
- std::string pool;
- std::string restat;
- std::string rspfile;
- std::string rspfile_content;
- };
-
Toolchain(const Settings* settings, const Label& label);
virtual ~Toolchain();
static ToolType ToolNameToType(const base::StringPiece& str);
static std::string ToolTypeToName(ToolType type);
- const Tool& GetTool(ToolType type) const;
- void SetTool(ToolType type, const Tool& t);
+ // Returns null if the tool hasn't been defined.
+ const Tool* GetTool(ToolType type) const;
+
+ // Set a tool. When all tools are configured, you should call
+ // ToolchainSetupComplete().
+ void SetTool(ToolType type, scoped_ptr<Tool> t);
+
+ // Does final setup on the toolchain once all tools are known.
+ void ToolchainSetupComplete();
// Targets that must be resolved before compiling any targets.
const LabelTargetVector& deps() const { return deps_; }
Scope::KeyValueMap& args() { return args_; }
const Scope::KeyValueMap& args() const { return args_; }
+ // Returns the tool for compiling the given source file type.
+ static ToolType GetToolTypeForSourceType(SourceFileType type);
+ const Tool* GetToolForSourceType(SourceFileType type);
+
+ // Returns the tool that produces the final output for the given target type.
+ // This isn't necessarily the tool you would expect. For copy target, this
+ // will return the stamp tool ionstead since the final output of a copy
+ // target is to stamp the set of copies done so there is one output.
+ static ToolType GetToolTypeForTargetFinalOutput(const Target* target);
+ const Tool* GetToolForTargetFinalOutput(const Target* target) const;
+
+ const SubstitutionBits& substitution_bits() const {
+ DCHECK(setup_complete_);
+ return substitution_bits_;
+ }
+
+ void set_concurrent_links(int cl) { concurrent_links_ = cl; }
+ int concurrent_links() const { return concurrent_links_; }
+
private:
- Tool tools_[TYPE_NUMTYPES];
+ scoped_ptr<Tool> tools_[TYPE_NUMTYPES];
+
+ // How many links to run in parallel. Only the default toolchain's version of
+ // this variable applies.
+ int concurrent_links_;
+
+ bool setup_complete_;
+
+ // Substitutions used by the tools in this toolchain.
+ SubstitutionBits substitution_bits_;
LabelTargetVector deps_;
Scope::KeyValueMap args_;