Autogen: Iterate source files only once

This is a large commit that serves multiple purposes

- Iterate source files only once and store all extracted
  information in a cmQtAutogenDigest class that can be reused.
  This is brings speed improvements because several properties
  are only evaluated once. More that that it helps to avoid
  duplication of code with non trivial files property checks.
- Fix the Visual Studio generator to use PRE_BUILD when possible.
- Convert `for( ... )` loops to C++11 range base loops where possible
  (cmQtAutogen*.cxx only).
- String concatenation optimizations.

1 files changed, 0 insertions, 39 deletions

diff --git a/Source/cmQtAutoGeneratorCommon.h b/Source/cmQtAutoGeneratorCommon.h
deleted file mode 100644
index 23a882a..0000000
--- a/Source/cmQtAutoGeneratorCommon.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
-#ifndef cmQtAutoGeneratorCommon_h
-#define cmQtAutoGeneratorCommon_h
-
-#include "cmConfigure.h" // IWYU pragma: keep
-
-#include <string>
-#include <vector>
-
-class cmQtAutoGeneratorCommon
-{
-  // - Types and statics
-public:
-  static const char* listSep;
-
-  enum GeneratorType
-  {
-    MOC,
-    UIC,
-    RCC
-  };
-
-public:
-  /// @brief Returns a the string escaped and enclosed in quotes
-  ///
-  static std::string Quoted(const std::string& text);
-
-  /// @brief Reads the resource files list from from a .qrc file
-  /// @arg fileName Must be the absolute path of the .qrc file
-  /// @return True if the rcc file was successfully parsed
-  static bool RccListInputs(const std::string& qtMajorVersion,
-                            const std::string& rccCommand,
-                            const std::string& fileName,
-                            std::vector<std::string>& files,
-                            std::string* errorMessage = nullptr);
-};
-
-#endif