From 0c16f27814a344f0694b8d4ae580f82393a0d540 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Sun, 6 Feb 2022 11:50:27 +0000
Subject: [PATCH] Update parser for `#sparse`

---
 core/odin/parser/parser.odin | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/core/odin/parser/parser.odin b/core/odin/parser/parser.odin
index 0ebabfd70..cc802e7d2 100644
--- a/core/odin/parser/parser.odin
+++ b/core/odin/parser/parser.odin
@@ -2273,6 +2273,24 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 			return original_type
 
 		case "partial":
+			tag := ast.new(ast.Basic_Directive, tok.pos, end_pos(name))
+			tag.tok = tok
+			tag.name = name.text
+			original_expr := parse_expr(p, lhs)
+			expr := ast.unparen_expr(original_expr)
+			switch t in &expr.derived {
+			case ast.Comp_Lit:
+				t.tag = tag
+			case ast.Array_Type:
+				t.tag = tag
+				error(p, tok.pos, "#%s has been replaced with #sparse for non-contiguous enumerated array types", name.text)
+			case:
+				error(p, tok.pos, "expected a compound literal after #%s", name.text)
+
+			}
+			return original_expr
+
+		case "sparse":
 			tag := ast.new(ast.Basic_Directive, tok.pos, end_pos(name))
 			tag.tok = tok
 			tag.name = name.text