Simplified ast package

src/core/CompileTokens.go

@@ -2,18 +2,16 @@ package core
 
 import (
 	"git.akyoto.dev/cli/q/src/ast"
-	"git.akyoto.dev/cli/q/src/errors"
 	"git.akyoto.dev/cli/q/src/token"
 )
 
 // CompileTokens compiles a token list.
 func (f *Function) CompileTokens(tokens []token.Token) error {
-	body, err := ast.Parse(tokens, f.File.Bytes)
+	tree, err := ast.Parse(tokens, f.File)
 
 	if err != nil {
-		err.(*errors.Error).File = f.File
 		return err
 	}
 
-	return f.CompileAST(body)
+	return f.CompileAST(tree)
 }