Symbols API. (#523)

* Symbols API.

* presedence bugfix.

src/_premake_init.lua

@@ -489,7 +489,7 @@
 			"SEH",                 -- DEPRECATED
 			"ShadowedVariables",
 			"StaticRuntime",
-			"Symbols",
+			"Symbols",             -- DEPRECATED
 			"UndefinedIdentifiers",
 			"Unicode",             -- DEPRECATED
 			"Unsafe",              -- DEPRECATED
@@ -945,6 +945,17 @@
 		}
 	}
 
+	api.register {
+		name = "symbols",
+		scope = "config",
+		kind = "string",
+		allowed = {
+			"Default",
+			"On",
+			"Off",
+		},
+	}
+
 	api.register {
 		name = "sysincludedirs",
 		scope = "config",
@@ -1275,7 +1286,7 @@
 		exceptionhandling "Default"
 	end)
 
-	api.deprecateValue("flags", "Unsafe", nil,
+	api.deprecateValue("flags", "Unsafe", 'Use `clr "Unsafe"` instead',
 	function(value)
 		clr "Unsafe"
 	end,
@@ -1285,7 +1296,7 @@
 
 	-- 18 Dec 2015
 
-	api.deprecateValue("flags", "Unicode", nil,
+	api.deprecateValue("flags", "Unicode", 'Use `characterset "Unicode"` instead',
 	function(value)
 		characterset "Unicode"
 	end,
@@ -1293,6 +1304,16 @@
 		characterset "Default"
 	end)
 
+	-- 21 June 2016
+
+	api.deprecateValue("flags", "Symbols", 'Use `symbols "On"` instead',
+	function(value)
+		symbols "On"
+	end,
+	function(value)
+		symbols "Default"
+	end)
+
 
 
 -----------------------------------------------------------------------------

src/actions/vstudio/vs2005_csproj.lua

@@ -254,7 +254,7 @@
 --
 
 	function cs2005.debugProps(cfg)
-		if cfg.flags.Symbols then
+		if cfg.symbols == p.ON then
 			_p(2,'<DebugSymbols>true</DebugSymbols>')
 			_p(2,'<DebugType>full</DebugType>')
 		else

src/actions/vstudio/vs200x_vcproj.lua

@@ -749,7 +749,7 @@
 --
 
 	function m.symbols(cfg)
-		if not cfg.flags.Symbols then
+		if not (cfg.symbols == p.ON) then
 			return 0
 		elseif cfg.debugformat == "c7" then
 			return 1

src/actions/vstudio/vs2010_vcxproj.lua

@@ -1230,7 +1230,7 @@
 	function m.debugInformationFormat(cfg)
 		local value
 		local tool, toolVersion = p.config.toolset(cfg)
-		if cfg.flags.Symbols then
+		if cfg.symbols == p.ON then
 			if cfg.debugformat == "c7" then
 				value = "OldStyle"
 			elseif cfg.architecture == "x86_64" or
@@ -1243,9 +1243,10 @@
 			else
 				value = "EditAndContinue"
 			end
-		end
-		if value then
-			m.element("DebugInformationFormat", nil, value)
+
+			if value then
+				m.element("DebugInformationFormat", nil, value)
+			end
 		end
 	end
 
@@ -1368,7 +1369,7 @@
 
 
 	function m.generateDebugInformation(cfg)
-		m.element("GenerateDebugInformation", nil, tostring(cfg.flags.Symbols ~= nil))
+		m.element("GenerateDebugInformation", nil, tostring(cfg.symbols == p.ON))
 	end
 
 

src/tools/snc.lua

@@ -87,7 +87,7 @@
 	function snc.getldflags(cfg)
 		local flags = { }
 
-		if not cfg.flags.Symbols then
+		if not (cfg.symbols == p.ON) then
 			table.insert(flags, "-s")
 		end