implement object key access

1 files changed, 13 insertions, 0 deletions

diff --git a/src/jq/execute.zig b/src/jq/execute.zig
index a07204a..8e9bbb0 100644
--- a/src/jq/execute.zig
+++ b/src/jq/execute.zig
@@ -66,6 +66,14 @@ const ValueStack = struct {
             else => error.InvalidType,
         };
     }
+
+    pub fn popObject(self: *Self) ExecuteError!jv.Object {
+        const value = try self.pop();
+        return switch (value) {
+            .object => |o| o,
+            else => error.InvalidType,
+        };
+    }
 };
 
 pub fn execute(allocator: std.mem.Allocator, instrs: []const Instr, input: jv.Value) !jv.Value {
@@ -86,6 +94,11 @@ pub fn execute(allocator: std.mem.Allocator, instrs: []const Instr, input: jv.Va
                 const result = if (index < array.items.len) array.items[index] else .null;
                 try value_stack.push(result);
             },
+            .object_key => |key| {
+                const obj = try value_stack.popObject();
+                const result = obj.get(key) orelse .null;
+                try value_stack.push(result);
+            },
             .literal => |value| {
                 try value_stack.push(value.*);
             },