Support building modular programs

[builder.git] / source / component.h

diff --git a/source/component.h b/source/component.h
index 04a0a41103b858a2a483c7b97e8ff75c2b3fcb68..e1df73a5b232aefd9c554010b2767f9f7697c297 100644 (file)
--- a/source/component.h
+++ b/source/component.h
@@ -10,9 +10,16 @@
 
 class Package;
 
+/**
+Components specify things to be built.  Each component may build one binary (it
+may also build none), as well as install a bunch of headers.  Components inherit
+dependencies and build info from the package they belong to, and may also add
+their own.
+*/
 class Component
 {
 public:
+       /// Loads a Component from file.  Used from Package::Loader.
        class Loader: public Msp::Parser::Loader
        {
        public:
@@ -23,6 +30,8 @@ public:
 
                void source(const std::string &);
                void require(const std::string &);
+               void modular();
+               void host(const std::string &);
                void build_info();
        };
        
@@ -42,6 +51,8 @@ public:
        const BuildInfo   &get_build_info() const      { return build_info; }
        bool              get_install() const          { return install; }
        const std::string &get_install_headers() const { return install_headers; }
+       bool              get_modular() const          { return modular; }
+       const PkgRefList  &get_requires() const        { return requires; }
        void              resolve_refs();
        void              create_build_info();
 protected:
@@ -51,8 +62,10 @@ protected:
        PathList    sources;
        bool        install;
        std::string install_headers;
+       const Component *module_host;
+       bool        modular;
        BuildInfo   build_info;
-       std::list<PackageRef> requires;
+       PkgRefList  requires;
 };
 typedef std::list<Component> ComponentList;