Cleanup compiler

Author: antonmedv

compiler/compiler.go

@@ -48,6 +48,8 @@ func Compile(tree *parser.Tree, config *conf.Config) (program *Program, err erro
 	return
 }
 
+const placeholder = MaxOpcode
+
 type compiler struct {
 	locations []file.Location
 	constants []interface{}
@@ -116,10 +118,6 @@ func (c *compiler) addConstant(constant interface{}) Opcode {
 	return p
 }
 
-func (c *compiler) placeholder() Opcode {
-	return 0
-}
-
 func (c *compiler) patchJump(placeholder int) {
 	offset := len(c.bytecode) - 1 - placeholder
 	c.bytecode[placeholder] = Opcode(offset)
@@ -718,16 +716,3 @@ func kind(node ast.Node) reflect.Kind {
 	}
 	return t.Kind()
 }
-
-func deref(t reflect.Type) reflect.Type {
-	for t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-	return t
-}
-
-func isStruct(t reflect.Type) bool {
-	return t.Kind() == reflect.Struct
-}
-
-const placeholder = math.MaxUint32

vm/opcodes.go

@@ -1,7 +1,11 @@
 package vm
 
+import "math"
+
 type Opcode uint32
 
+const MaxOpcode = math.MaxUint32
+
 const (
 	OpPush Opcode = iota
 	OpPop