From db0debf76ec630312fa7edff2f38a7ea578d5c12 Mon Sep 17 00:00:00 2001
From: caixw <xnotepad@gmail.com>
Date: Wed, 29 Jul 2020 15:36:45 +0800
Subject: [PATCH] =?UTF-8?q?fix(internal/lsp/search):=20=E5=85=81=E8=AE=B8?=
 =?UTF-8?q?=E9=95=BF=E5=BA=A6=E4=B8=BA=E9=9B=B6=E7=9A=84=20token?=
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比如 default="" 的属性形式，其值的长度为 0
---
 internal/lsp/search/semantic.go      |  2 +-
 internal/lsp/search/semantic_test.go | 11 +++++------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/internal/lsp/search/semantic.go b/internal/lsp/search/semantic.go
index 3f12f800..8156c0eb 100644
--- a/internal/lsp/search/semantic.go
+++ b/internal/lsp/search/semantic.go
@@ -31,7 +31,7 @@ func (b *tokenBuilder) append(r core.Range, token int) {
 	}
 
 	l := r.End.Character - r.Start.Character
-	if l <= 0 {
+	if l < 0 { // 可能存在长度为 0 的，比如 default="" 值的长度为 0
 		panic(fmt.Sprintf("无效的参数 range，其长度为 %d", l))
 	}
 
diff --git a/internal/lsp/search/semantic_test.go b/internal/lsp/search/semantic_test.go
index 4e2099c8..5444136a 100644
--- a/internal/lsp/search/semantic_test.go
+++ b/internal/lsp/search/semantic_test.go
@@ -27,12 +27,11 @@ func TestTokenBuilder_append(t *testing.T) {
 	a.Equal(1, len(b.tokens))
 
 	// 长度为 0
-	a.Panic(func() {
-		b.append(core.Range{
-			Start: core.Position{Line: 1, Character: 11},
-			End:   core.Position{Line: 1, Character: 11},
-		}, 1)
-	})
+	b.append(core.Range{
+		Start: core.Position{Line: 1, Character: 11},
+		End:   core.Position{Line: 1, Character: 11},
+	}, 1)
+	a.Equal(2, len(b.tokens))
 
 	// 长度为负数
 	a.Panic(func() {