cmDepends: Define DependencyMap instead of DependencyVector

In `cmDepends` use
`typedef std::map<std::string, std::vector<std::string>> DependencyMap`
instead of defining a
`class DependencyVector : public std::vector<std::string>`
and using it in `std::map<std::string, DependencyVector>`.

Since `std::map<std::string, std::vector<std::string>>` is used in various
other places, we now reuse all of it's auto generated methods.  This doesn't
happen when we use `DependencyVector` in a `std::map`, because it is a
different class than `std::vector<std::string>`.

1 files changed, 2 insertions, 3 deletions

diff --git a/Source/cmDependsC.h b/Source/cmDependsC.h
index eee5ae1..3fc839e 100644
--- a/Source/cmDependsC.h
+++ b/Source/cmDependsC.h
@@ -27,8 +27,7 @@ public:
       relative path from the build directory to the target file.  */
   cmDependsC();
   cmDependsC(cmLocalGenerator* lg, const std::string& targetDir,
-             const std::string& lang,
-             const std::map<std::string, DependencyVector>* validDeps);
+             const std::string& lang, const DependencyMap* validDeps);
 
   /** Virtual destructor to cleanup subclasses properly.  */
   ~cmDependsC() override;
@@ -81,7 +80,7 @@ public:
   };
 
 protected:
-  const std::map<std::string, DependencyVector>* ValidDeps = nullptr;
+  const DependencyMap* ValidDeps = nullptr;
   std::set<std::string> Encountered;
   std::queue<UnscannedEntry> Unscanned;