From fa2bca619f118b5000ec6f1852d0bbbaf014efa8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Mart=C3=AD?= <mvdan@mvdan.cc>
Date: Mon, 8 Dec 2025 16:38:42 +0000
Subject: [PATCH] cue/parser: delay ast.Field allocation in parseField
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Very simple tidy up; in some cases we don't need the allocation,
so only do it once we know we will need it.

Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Change-Id: Id84ef49f3866a80e3d4acd6b3768ea4bbb63b9f3
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1227718
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
Reviewed-by: Roger Peppe <rogpeppe@gmail.com>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
---
 cue/parser/parser.go | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/cue/parser/parser.go b/cue/parser/parser.go
index 179cf8aa7..f9b50ca53 100644
--- a/cue/parser/parser.go
+++ b/cue/parser/parser.go
@@ -874,17 +874,12 @@ func (p *parser) parseField() (decl ast.Decl) {
 	defer func() { c.closeNode(p, decl) }()
 
 	pos := p.pos
-
-	this := &ast.Field{Label: nil}
-	m := this
-
 	tok := p.tok
 
 	label, expr, decl, ok := p.parseLabel(false)
 	if decl != nil {
 		return decl
 	}
-	m.Label = label
 
 	if !ok {
 		if expr == nil {
@@ -900,6 +895,10 @@ func (p *parser) parseField() (decl ast.Decl) {
 		return e
 	}
 
+	this := &ast.Field{}
+	m := this
+	m.Label = label
+
 	// Parse postfix alias if present
 	m.Alias = p.parsePostfixAlias()
 
-- 
2.54.0