From 710eefe85a976c438da255499fbefd1a6c989ef6 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Mon, 9 Jul 2018 20:47:07 +0200
Subject: pkg/compiler: support negative integers

Currently we have to use 0xffffffffffffffff to represent -1,
and we can't express e.g. -20:20 int range.
Support negative consts to fix both problems.
---
 pkg/ast/ast.go | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

(limited to 'pkg/ast/ast.go')

diff --git a/pkg/ast/ast.go b/pkg/ast/ast.go
index 610d22f30..1e1e97221 100644
--- a/pkg/ast/ast.go
+++ b/pkg/ast/ast.go
@@ -169,19 +169,20 @@ func (n *String) Info() (Pos, string, string) {
 	return n.Pos, tok2str[tokString], ""
 }
 
-type intFmt int
+type IntFmt int
 
 const (
-	intFmtDec intFmt = iota
-	intFmtHex
-	intFmtChar
+	IntFmtDec IntFmt = iota
+	IntFmtNeg
+	IntFmtHex
+	IntFmtChar
 )
 
 type Int struct {
 	Pos Pos
 	// Only one of Value, Ident, CExpr is filled.
 	Value    uint64
-	valueFmt intFmt
+	ValueFmt IntFmt
 	Ident    string
 	CExpr    string
 }
@@ -194,7 +195,7 @@ type Type struct {
 	Pos Pos
 	// Only one of Value, Ident, String is filled.
 	Value     uint64
-	valueFmt  intFmt
+	ValueFmt  IntFmt
 	Ident     string
 	String    string
 	HasString bool
@@ -202,7 +203,7 @@ type Type struct {
 	HasColon  bool
 	Pos2      Pos
 	Value2    uint64
-	value2Fmt intFmt
+	Value2Fmt IntFmt
 	Ident2    string
 	Args      []*Type
 }
-- 
cgit mrf-deployment