1 files changed, 17 insertions, 0 deletions
diff --git a/compiler.d b/compiler.d
index f721e86..2480918 100644
--- a/compiler.d
+++ b/compiler.d
@@ -582,6 +582,19 @@ class Compiler {
     }
 
     // LISP-Y
+    void compileApply(Form[] args) {
+        if (args.length != 2) {
+            this.error(format("'apply?': expected [2] argument, received %d", to!int(args.length)), -1);
+            return;
+        }
+        ValueType vt1 = this.resolve(args[0], ValueType.ANY);  // this should be a function
+        vt1 = this.resolve(args[1], ValueType.ANY);
+
+        // ungroup the list and call the function
+        this.func.chunk.writeOp(OpCode.OP_UNGROUP, args[1].line);
+        this.func.chunk.writeOp(OpCode.OP_CALL_N, args[1].line);
+    }
+
     void compileBlock(Form form) {
         Block block = cast(Block)form;
         this.beginScope();
@@ -1088,6 +1101,9 @@ class Compiler {
                 break;
 
             // OTHER
+            case "apply":
+                this.compileApply(cons.tail);
+                break;
             case "print":
                 this.compilePrint(cons.tail);
                 break;
@@ -1223,6 +1239,7 @@ class Compiler {
         this.globals["reverse"] = 1;
 
         // OTHER
+        this.globals["apply"] = 2;
         this.globals["print"] = 1;
     }