Split the parser-related build code into its own file.

build/Parser.lua

@@ -0,0 +1,35 @@
+newoption {
+     trigger = "parser",
+     description = "Controls which version of the parser is enabled.",
+     value = "version",
+     allowed = {
+          { "cpp", "Cross-platform C++ parser."},
+          { "cli", "VS-only C++/CLI parser."},
+     }
+}
+
+function SetupCLIParser()
+  local parser = _OPTIONS["parser"]
+  if not parser or parser == "cli" then
+    defines { "OLD_PARSER" }
+    links { "CppSharp.Parser" }
+  else
+    links { "CppSharp.Parser.CLI" }
+  end
+end
+
+function SetupCSharpParser()
+  links
+  {
+    "CppSharp.Parser.CSharp",
+    "CppSharp.Runtime"
+  }
+end
+
+function SetupParser()
+  if string.match(action, "vs*") then
+    SetupCLIParser()
+  else
+    SetupCSharpParser()
+  end
+end

build/premake4.lua

@@ -6,45 +6,8 @@ config = {}
 
 dofile "Helpers.lua"
 dofile "Tests.lua"
-
--- Setup the LLVM dependency
 dofile "LLVM.lua"
-
+dofile "Parser.lua"
-newoption {
-     trigger = "parser",
-     description = "Controls which version of the parser is enabled.",
-     value = "version",
-     allowed = {
-          { "cpp", "Cross-platform C++ parser."},
-          { "cli", "VS-only C++/CLI parser."},
-     }
-}
-
-function SetupCLIParser()
-  local parser = _OPTIONS["parser"]
-  if not parser or parser == "cli" then
-    defines { "OLD_PARSER" }
-    links { "CppSharp.Parser" }
-  else
-    links { "CppSharp.Parser.CLI" }
-  end
-end
-
-function SetupCSharpParser()
-  links
-  {
-    "CppSharp.Parser.CSharp",
-    "CppSharp.Runtime"
-  }
-end
-
-function SetupParser()
-  if string.match(action, "vs*") then
-    SetupCLIParser()
-  else
-    SetupCSharpParser()
-  end
-end
 
 solution "CppSharp"