X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftool.h;h=36d1be165b4f614a994d99ca08bcda4b37674ecd;hb=722d53055cc78a7a7d9901d2b1fe23a2a33fb623;hp=1905555e1818955515a25fe8b1fbca2e5149630a;hpb=4facd021514ab372c23b1b132d6b4b62baa4efbf;p=builder.git

diff --git a/source/tool.h b/source/tool.h
index 1905555..36d1be1 100644
--- a/source/tool.h
+++ b/source/tool.h
@@ -10,6 +10,10 @@ class Component;
 class Target;
 class Task;
 
+/**
+Base class for tools.  Tools are used to turn targets into other targets.
+Examples include compilers and linkers.
+*/
 class Tool
 {
 public:
@@ -34,9 +38,23 @@ public:
 	const SearchPath &get_system_path() const { return system_path; }
 
 	virtual Target *create_source(const Component &, const Msp::FS::Path &) const { return 0; }
+	virtual Target *create_source(const Msp::FS::Path &) const { return 0; }
 	Target *create_target(Target &, const std::string & = std::string()) const;
 	virtual Target *create_target(const std::list<Target *> &, const std::string & = std::string()) const = 0;
 	virtual Task *run(const Target &) const = 0;
 };
 
+/**
+Intermediate base class for tool facets.  For example, a linker may need to
+use different commands depending on whether C++ source files are present or
+not, but their presence can't be directly determined from the object files.
+*/
+class SubTool: public Tool
+{
+protected:
+	Tool &parent;
+
+	SubTool(Tool &);
+};
+
 #endif