Added placeholders for type casts

src/types/Common.go

@@ -3,6 +3,7 @@ package types
 var (
 	Any        = &Base{name: "any", size: 0}
 	AnyArray   = &Array{Of: Any}
+	AnyInt     = &Base{name: "int"}
 	AnyPointer = &Pointer{To: Any}
 	Bool       = &Base{name: "bool", size: 1}
 	Int64      = &Base{name: "int64", size: 8}
@@ -12,15 +13,15 @@ var (
 	Float64    = &Base{name: "float64", size: 8}
 	Float32    = &Base{name: "float32", size: 4}
 	String     = &Array{Of: Byte}
+	UInt64     = &Base{name: "uint64", size: 8}
+	UInt32     = &Base{name: "uint32", size: 4}
+	UInt16     = &Base{name: "uint16", size: 2}
+	UInt8      = &Base{name: "uint8", size: 1}
 )
 
 var (
-	Byte   = UInt8
-	Int    = Int64
-	Float  = Float64
-	UInt   = Int
-	UInt64 = Int64
-	UInt32 = Int32
-	UInt16 = Int16
-	UInt8  = Int8
+	Byte  = UInt8
+	Float = Float64
+	Int   = Int64
+	UInt  = UInt64
 )

src/types/Is.go

@@ -25,13 +25,11 @@ func Is(a Type, b Type) bool {
 		return true
 	}
 
-	// Temporary hacks
-	if a == Int32 && b == Int64 {
-		return true
-	}
-
-	if a == Int64 && b == Int32 {
-		return true
+	if a == AnyInt {
+		switch b {
+		case Int64, Int32, Int16, Int8, UInt64, UInt32, UInt16, UInt8:
+			return true
+		}
 	}
 
 	return false

src/types/types_test.go

@@ -13,7 +13,7 @@ func TestName(t *testing.T) {
 	assert.Equal(t, types.AnyPointer.Name(), "*any")
 	assert.Equal(t, (&types.Pointer{To: types.Int}).Name(), "*int64")
 	assert.Equal(t, (&types.Array{Of: types.Int}).Name(), "[]int64")
-	assert.Equal(t, types.String.Name(), "[]int8")
+	assert.Equal(t, types.String.Name(), "[]uint8")
 }
 
 func TestSize(t *testing.T) {