added @in (but not working due to moonscript bug) and @out

Build.moon

@@ -24,13 +24,13 @@ with public target 'install'
 with public target 'install-bin'
 	\depends BIN
 	\produces _.patsubst BIN, 'out/%', '/usr/local/bin/%'
-	\fn => _.cmd 'sudo', 'cp', @infile, @outfile
+	\fn => _.cmd 'sudo', 'cp', @infile, @out
 	\sync!
 
 with public target 'install-lib'
 	\depends LIB
 	\produces "/usr/local/share/lua/#{LUA\gsub 'lua', ''}/moonbuild.lua"
-	\fn => _.cmd 'sudo', 'cp', @infile, @outfile
+	\fn => _.cmd 'sudo', 'cp', @infile, @out
 	\sync!
 
 with public target 'clean'
@@ -52,16 +52,16 @@ with target BIN, pattern: 'out/%'
 	\produces 'out/%'
 	\mkdirs!
 	\fn =>
-		_.writefile @outfile, "#!/usr/bin/env #{LUA}\n#{_.readfile @infile}"
+		_.writefile @out, "#!/usr/bin/env #{LUA}\n#{_.readfile @infile}"
-		_.cmd 'chmod', '+x', @outfile
+		_.cmd 'chmod', '+x', @out
 
 with target LIB
 	\depends 'moonbuild/init.lua'
 	\depends LIB_LUA
 	\produces '%'
-	\fn => _.cmd AMALG, '-o', @outfile, '-s', @infile, _.exclude MODULES, 'moonbuild.init'
+	\fn => _.cmd AMALG, '-o', @out, '-s', @infile, _.exclude MODULES, 'moonbuild.init'
 
 with target {LIB_LUA, BIN_LUA}, pattern: '%.lua'
 	\depends '%.moon'
 	\produces '%.lua'
-	\fn => _.moonc @infile, @outfile
+	\fn => _.moonc @infile, @out

moonbuild/core/DAG.moon

@@ -108,12 +108,12 @@ class DepNode
 			ctx = setmetatable {},
 				__index: (_, k) ->
 					switch k
-						when 'infile'
+						when 'infile', 'in'
 							f = first deps
 							f and f.name
 						when 'infiles'
 							foreach deps, => @name
-						when 'outfile'
+						when 'outfile', 'out'
 							f = first @outs
 							f and f.name
 						when 'outfiles'
@@ -182,9 +182,9 @@ class DepNode
 		ctx = setmetatable {},
 			__index: (_, k) ->
 				switch k
-					when 'infile' then @ins[1]
+					when 'infile', 'in' then @ins[1]
 					when 'infiles' then @ins
-					when 'outfile' then @outs[1]
+					when 'outfile', 'out' then @outs[1]
 					when 'outfiles' then @outs
 					when 'name' then @name
 					else error "No such field in TargetContext: #{k}"

out/moonbuild.lua

@@ -1952,11 +1952,11 @@ do
       local ctx = setmetatable({ }, {
         __index = function(_, k)
           local _exp_0 = k
-          if 'infile' == _exp_0 then
+          if 'infile' == _exp_0 or 'in' == _exp_0 then
             return self.ins[1]
           elseif 'infiles' == _exp_0 then
             return self.ins
-          elseif 'outfile' == _exp_0 then
+          elseif 'outfile' == _exp_0 or 'out' == _exp_0 then
             return self.outs[1]
           elseif 'outfiles' == _exp_0 then
             return self.outs
@@ -2010,14 +2010,14 @@ do
         local ctx = setmetatable({ }, {
           __index = function(_, k)
             local _exp_0 = k
-            if 'infile' == _exp_0 then
+            if 'infile' == _exp_0 or 'in' == _exp_0 then
               local f = first(deps)
               return f and f.name
             elseif 'infiles' == _exp_0 then
               return foreach(deps, function(self)
                 return self.name
               end)
-            elseif 'outfile' == _exp_0 then
+            elseif 'outfile' == _exp_0 or 'out' == _exp_0 then
               local f = first(self.outs)
               return f and f.name
             elseif 'outfiles' == _exp_0 then