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Diffstat (limited to 'build/scope')
| -rw-r--r-- | build/scope | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/build/scope b/build/scope index 2b621e7..2eb8ac7 100644 --- a/build/scope +++ b/build/scope @@ -88,6 +88,8 @@ namespace build private: friend class scope_map; + friend class temp_scope; + typedef path_map<scope>::const_iterator iterator; scope (): variables (*this) {} @@ -97,6 +99,20 @@ namespace build scope* root_; }; + // Temporary scope. The idea is to be able to create a temporary + // scope in order not to change the variables in the current scope. + // Such a scope is not entered in to the scope map. As a result it + // can only be used as a temporary set of variables. In particular, + // defining targets/prerequsites directly in such a scope will surely + // end up badly. Defining any nested scopes will be as if defining + // such a scope in the parent (since path() returns parent's path). + // + class temp_scope: public scope + { + public: + temp_scope (scope& p) {i_ = p.i_; parent_ = &p; root_ = p.root_;} + }; + class scope_map: public path_map<scope> { public: |