Add new editAndContinue() API to replace NoEditAndContinue flag

Make it easier and more intuitive to support platforms/toolsets where edit-and-continue is available but turned off by default. Can now turn off with editAndContinue("off") instead of flags("NoEditAndContinue"), and turn it on with editAndContinue("on") instead of removeflags("NoEditAndContinue").

The NoEditAndContinue flag is still in place, and continues to behave as it did before, but will be marked deprecated in the documentation.

src/_premake_init.lua

@@ -234,6 +234,13 @@
 	}
 
 
+	api.register {
+		name = "editAndContinue",
+		scope = "config",
+		kind = "boolean",
+	}
+
+
 	-- For backward compatibility, excludes() is now an alias for removefiles()
 	function excludes(value)
 		removefiles(value)
@@ -285,7 +292,7 @@
 			"NativeWChar",         -- DEPRECATED
 			"No64BitChecks",
 			"NoCopyLocal",
-			"NoEditAndContinue",
+			"NoEditAndContinue",   -- DEPRECATED
 			"NoExceptions",
 			"NoFramePointer",
 			"NoImplicitLink",
@@ -847,6 +854,17 @@
 		warnings "Default"
 	end)
 
+	-- 10 Nov 2014
+
+	api.deprecateValue("flags", "NoEditAndContinue", nil,
+	function(value)
+		editAndContinue "Off"
+	end,
+	function(value)
+		editAndContinue "On"
+	end)
+
+
 
 -----------------------------------------------------------------------------
 --
@@ -947,6 +965,8 @@
 --
 -----------------------------------------------------------------------------
 
+	editAndContinue "On"
+
 	-- Setting a default language makes some validation easier later
 
 	language "C++"

src/actions/vstudio/vs200x_vcproj.lua

@@ -749,7 +749,7 @@
 			return 1
 		else
 			-- Edit-and-continue doesn't work for some configurations
-			if cfg.flags.NoEditAndContinue or
+			if not cfg.editAndContinue or
 				config.isOptimizedBuild(cfg) or
 			    cfg.flags.Managed or
 			    cfg.system == "x64"

src/actions/vstudio/vs2010_vcxproj.lua

@@ -994,7 +994,7 @@
 			elseif cfg.architecture == "x64" or
 			       cfg.flags.Managed or
 				   config.isOptimizedBuild(cfg) or
-				   cfg.flags.NoEditAndContinue
+				   not cfg.editAndContinue
 			then
 				value = "ProgramDatabase"
 			else

tests/actions/vstudio/vc2010/test_compile_settings.lua

@@ -569,11 +569,12 @@
 
 
 --
--- Check the handling of the NoEditAndContinue flag.
+-- Check the handling of the editAndContinue flag.
 --
 
-	function suite.debugFormat_onNoEditAndContinue()
-		flags { "Symbols", "NoEditAndContinue" }
+	function suite.debugFormat_onEditAndContinueOff()
+		flags { "Symbols" }
+		editAndContinue "Off"
 		prepare()
 		test.capture [[
 <ClCompile>