From 57f06b7309aad18d83e9ecb04d7c59ccea527f17 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 25 Jan 2026 22:10:05 +0900
Subject: implement and/or operators

---
 src/jq/execute.zig | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'src/jq/execute.zig')

diff --git a/src/jq/execute.zig b/src/jq/execute.zig
index caf525a..b30bd3d 100644
--- a/src/jq/execute.zig
+++ b/src/jq/execute.zig
@@ -183,9 +183,34 @@ pub const Runtime = struct {
                 .jump => |offset| {
                     self.pc += offset - 1;
                 },
+                .jump_unless => |offset| {
+                    std.debug.assert(self.values.ensureSize(1));
+
+                    const value = self.values.pop();
+                    const is_falsy = switch (value) {
+                        .null => true,
+                        .bool => |b| !b,
+                        else => false,
+                    };
+                    if (is_falsy) {
+                        self.pc += offset - 1;
+                    }
+                    // FIXME: optimize pop and push
+                    try self.values.push(value);
+                },
                 .fork => |offset| {
                     try self.save_stack(self.pc + offset);
                 },
+                .dup => {
+                    std.debug.assert(self.values.ensureSize(1));
+
+                    try self.values.dup();
+                },
+                .pop => {
+                    std.debug.assert(self.values.ensureSize(1));
+
+                    _ = self.values.pop();
+                },
                 .subexp_begin => try self.values.dup(),
                 .subexp_end => try self.values.swap(),
                 .index => {
@@ -309,6 +334,18 @@ pub const Runtime = struct {
                     _ = self.values.pop();
                     try self.values.push(self.constants.items[@intFromEnum(idx)]);
                 },
+                .const_true => {
+                    std.debug.assert(self.values.ensureSize(1));
+
+                    _ = self.values.pop();
+                    try self.values.push(.{ .bool = true });
+                },
+                .const_false => {
+                    std.debug.assert(self.values.ensureSize(1));
+
+                    _ = self.values.pop();
+                    try self.values.push(.{ .bool = false });
+                },
             }
         }
 
-- 
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