syntax: allow consecutive case values

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

2 files changed, 27 insertions, 0 deletions

diff --git a/parser.y b/parser.y
index 481a6ea..1d5ccb1 100644
--- a/parser.y
+++ b/parser.y
@@ -185,6 +185,7 @@ switch_cases(A) ::= switch_cases(B) switch_case(C).		{ A = append_op(B, C); }
 switch_cases(A) ::= switch_case(B).						{ A = B; }
 
 switch_case(A) ::= T_CASE(B) exp(C) T_COLON stmts(D).	{ A = wrap_op(B, C, D); }
+switch_case(A) ::= T_CASE(B) exp(C) T_COLON.			{ A = wrap_op(B, C); }
 switch_case(A) ::= T_DEFAULT(B) T_COLON stmts(C).		{ A = wrap_op(B, C); }
 
 args(A) ::= args(B) T_COMMA T_LABEL(C).					{ A = append_op(B, C); }
diff --git a/tests/02_runtime/04_switch_case b/tests/02_runtime/04_switch_case
index 2102ee5..d3f6c94 100644
--- a/tests/02_runtime/04_switch_case
+++ b/tests/02_runtime/04_switch_case
@@ -271,3 +271,29 @@ In test(), line 6, byte 7:
 	print(test(1), "\n");
 %}
 -- End --
+
+
+11. Ensure that consecutive cases values are properly handled.
+
+-- Expect stdout --
+three and four
+-- End --
+
+-- Testcase --
+{%
+	switch (3) {
+	case 1:
+	case 2:
+		print("one and two\n");
+		break;
+
+	case 3:
+	case 4:
+		print("three and four\n");
+		break;
+
+	default:
+		print("five\n");
+	}
+%}
+-- End --