Add none structures and allow mismatched destructuring

1 files changed, 55 insertions, 1 deletions

diff --git a/subex/main_test.go b/subex/main_test.go
index 78a62c4..d7424b3 100644
--- a/subex/main_test.go
+++ b/subex/main_test.go
@@ -61,6 +61,15 @@ func TestSubexMain(t *testing.T) {
 			},
 		},
 		{
+			subex: `~(.)~`,
+			input: []walk.Value {
+				walk.StringValue("a"),
+			},
+			expected: []walk.Value {
+				walk.StringValue("a"),
+			},
+		},
+		{
 			subex: `~(.$_(.{-0}))~`,
 			input: []walk.Value {
 				walk.StringValue("hello"),
@@ -182,9 +191,54 @@ func TestSubexMain(t *testing.T) {
 				},
 			},
 		},
+		{
+			subex: "-(`0`.)@",
+			input: []walk.Value {
+				walk.NumberValue(4),
+			},
+			expected: []walk.Value {
+				walk.ArrayValue {
+					{
+						Index: 0,
+						Value: walk.NumberValue(4),
+					},
+				},
+			},
+		},
+		{
+			subex: `@(.$_~(.{-0})-{-0})~`,
+			input: []walk.Value {
+				walk.ArrayValue {
+					{
+						Index: 0,
+						Value: walk.StringValue("ab"),
+					},
+					{
+						Index: 1,
+						Value: walk.StringValue("cd"),
+					},
+					{
+						Index: 2,
+						Value: walk.StringValue("efg"),
+					},
+					{
+						Index: 3,
+						Value: walk.StringValue(""),
+					},
+					{
+						Index: 4,
+						Value: walk.StringValue("hijklm"),
+					},
+				},
+			},
+			expected: []walk.Value {
+				walk.StringValue("abcdefghijklm"),
+			},
+		},
 	}
 
-	for _, test := range tests {
+	for i, test := range tests {
+		t.Logf("Running test: %d", i)
 		lexer := NewStringRuneReader(test.subex)
 		ast := Parse(lexer)
 		transducer := CompileTransducer(ast)