diff options
Diffstat (limited to 'build2/variable')
| -rw-r--r-- | build2/variable | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/build2/variable b/build2/variable index 0c945c7..1a52566 100644 --- a/build2/variable +++ b/build2/variable @@ -161,6 +161,12 @@ namespace build2 inline bool operator!= (const value& x, const value& y) {return !(x == y);} + // Assign value type to the value. This triggers the assign callback. + // + template <typename T> + void assign (value&, const variable&); + void assign (value&, const value_type*, const variable&); + // lookup // // A variable can be undefined, NULL, or contain a (potentially @@ -203,12 +209,8 @@ namespace build2 // template <typename T> struct value_traits; - // Assign value type to the value. + // Value cast. // - template <typename T> - void assign (value&, const variable&); - void assign (value&, const value_type*, const variable&); - template <typename T> typename value_traits<T>::type as (value&); template <typename T> typename value_traits<T>::const_type as (const value&); @@ -758,8 +760,8 @@ namespace build2 return operator[] (var_pool.find (name)); } - // The second member in the pair indicates whether the new - // value (which will be NULL) was assigned. + // The second member in the pair indicates whether the new value (which + // will be NULL) was assigned. // pair<reference_wrapper<value>, bool> assign (const variable& var) @@ -781,6 +783,13 @@ namespace build2 return assign (var_pool.find (name, type)); } + template <typename T> + pair<reference_wrapper<value>, bool> + assign (const string& name) + { + return assign (var_pool.find (name, &value_traits<T>::value_type)); + } + pair<const_iterator, const_iterator> find_namespace (const string& ns) const { |