X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftool.h;h=7371103213b91f56483f630da8cada940d3fda66;hb=f75a99316e896cf1e424a489ce360a67844d86b0;hp=c302f3cffb432949706d4967a3ec18344e273738;hpb=e09cea0ffcef4ab5ea35c47c5b34237c44d0741f;p=builder.git

diff --git a/source/tool.h b/source/tool.h
index c302f3c..7371103 100644
--- a/source/tool.h
+++ b/source/tool.h
@@ -7,9 +7,14 @@
 
 class Builder;
 class Component;
+class FileTarget;
 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:
@@ -19,6 +24,7 @@ public:
 protected:
 	Builder &builder;
 	std::string tag;
+	FileTarget *executable;
 	SuffixList input_suffixes;
 	SuffixList aux_suffixes;
 	SearchPath system_path;
@@ -28,6 +34,8 @@ public:
 	virtual ~Tool() { }
 
 	const std::string &get_tag() const { return tag; }
+	// XXX The executable target should be retrieved when first needed
+	FileTarget *get_executable() const { return executable; }
 	const SuffixList &get_input_suffixes() const { return input_suffixes; }
 	const SuffixList &get_auxiliary_suffixes() const { return aux_suffixes; }
 	bool accepts_suffix(const std::string &, bool = false) const;
@@ -40,4 +48,17 @@ public:
 	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