Reduce url buffer

Author: sjorsdonkers

src/browser/browser.zig

@@ -193,7 +193,7 @@ pub const Session = struct {
         // can't use the page arena, because we're about to reset it
         // and don't want to use the session's arena, because that'll start to
         // look like a leak if we navigate from page to page a lot.
-        var buf: [4096]u8 = undefined;
+        var buf: [2048]u8 = undefined;
         var fba = std.heap.FixedBufferAllocator.init(&buf);
         const url = try self.page.?.url.resolve(fba.allocator(), url_string);
 
@@ -732,7 +732,7 @@ pub const Page = struct {
             _ = repeat_delay;
             const self: *DelayedNavigation = @fieldParentPtr("navigate_node", node);
             self.session.pageNavigate(self.href) catch |err| {
-                log.err("Delayed navigation error {}", .{err});
+                log.err("Delayed navigation error {}", .{err}); // TODO: should we trigger a specific event here?
             };
         }
     };

src/url.zig

@@ -82,3 +82,19 @@ pub const URL = struct {
         return WebApiURL.init(allocator, self.uri);
     }
 };
+
+test "Url resolve size" {
+    const base = "https://www.lightpande.io";
+    const url = try URL.parse(base, null);
+
+    var url_string: [511]u8 = undefined; // Currently this is the largest url we support, it is however recommmended to at least support 2000 characters
+    @memset(&url_string, 'a');
+
+    var buf: [2048]u8 = undefined; // This is approximately the required size to support the current largest supported URL
+    var fba = std.heap.FixedBufferAllocator.init(&buf);
+    const out_url = try url.resolve(fba.allocator(), &url_string);
+
+    try std.testing.expectEqualStrings(out_url.raw[0..25], base);
+    try std.testing.expectEqual(out_url.raw[25], '/');
+    try std.testing.expectEqualStrings(out_url.raw[26..], &url_string);
+}