eq? for many things

1 files changed, 28 insertions, 0 deletions

diff --git a/parser.d b/parser.d
index 6974662..440cae0 100644
--- a/parser.d
+++ b/parser.d
@@ -320,6 +320,34 @@ struct Value {
     As as;
 }
 
+bool areValuesEqual(Value left, Value right) {
+    if (left.type != right.type) {
+        return false;
+    }
+
+    switch (left.type) {
+        case ValueType.NUMBER:
+            return left.as.number == right.as.number;
+        case ValueType.BOOLEAN:
+            return left.as.boolean == right.as.boolean;
+        case ValueType.SEQ:
+            Seq leftSeq = cast(Seq)left.as.seq;
+            Seq rightSeq = cast(Seq)right.as.seq;
+            if (leftSeq.type != rightSeq.type) {
+                return false;
+            } else if (leftSeq.type == SeqType.STRING) {
+                return (cast(String)leftSeq).str == (cast(String)rightSeq).str;
+            } else {
+                // NOTE if eq? should work for lists, that logic goes here
+                return false;
+            }
+        default:
+            writeln("!!! THIS VALUE TYPE IS NOT SUPPORTED BY eq?");
+            return false;
+    }
+
+}
+
 Value makeStringValue(string str) {
     As as = { str: str };
     Value val = { ValueType.STRING, as };