'or' control statement

1 files changed, 23 insertions, 0 deletions

diff --git a/compiler.d b/compiler.d
index c05aeaa..6482f50 100644
--- a/compiler.d
+++ b/compiler.d
@@ -242,6 +242,26 @@ class Compiler {
         }
     }
 
+    void compileOr(Form form) {
+        Or or_ = cast(Or)form;
+
+        resolve(or_.clauses[0]);
+        int[] jumps;
+        jumps ~= jump(OpCode.OP_JUMP_IF_TRUE);
+        int count = 1;
+        while (count < or_.clauses.length) {
+            this.func.chunk.writeOp(OpCode.OP_POP, or_.line);
+            resolve(or_.clauses[count]);
+            jumps ~= jump(OpCode.OP_JUMP_IF_TRUE);
+            count++;
+        }
+
+        // patch all the jumps
+        foreach (int jmp; jumps) {
+            patchJump(jmp);
+        }
+    }
+
     void compileBlock(Form form) {
         Block block = cast(Block)form;
         beginScope();
@@ -327,6 +347,9 @@ class Compiler {
             case FormType.AND:
                 this.compileAnd(form);
                 break;
+            case FormType.OR:
+                this.compileOr(form);
+                break;
             default:
                 write("not sure how to resolve: ");
                 printForm(form);