diff options
Diffstat (limited to 'build2/target-type.hxx')
| -rw-r--r-- | build2/target-type.hxx | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/build2/target-type.hxx b/build2/target-type.hxx index ebe60db..408a520 100644 --- a/build2/target-type.hxx +++ b/build2/target-type.hxx @@ -34,12 +34,14 @@ namespace build2 // returns NULL, then it means the default extension for this target could // not be derived. // - // The default extension is used in two (key; there are others) places: + // The default extension is used in two key (there are others) places: // search_existing_file() (called for a prerequisite with the last argument // true) and in target::derive_extension() (called for a target with the // last argument false); see their respective implementations for details. - // Note that the default extension supplied to derive_extension() (e.g., by - // a rule) takes precedence over the one returned by default_extension. + // The third argument is the default extension that is supplied (e.g., by a + // rule) to derive_extension(), if any. The implementation can decide which + // takes precedence, etc (see the exe{} target type for some interesting + // logic). // // If the pattern function is not NULL, then it is used to amend a pattern // or match (reverse is false) and then, if the amendment call returned @@ -55,6 +57,7 @@ namespace build2 const char* (*fixed_extension) (const target_key&); optional<string> (*default_extension) (const target_key&, const scope&, + const char*, bool search); bool (*pattern) (const target_type&, const scope&, string&, bool reverse); |