Merging upstream version 1.75.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 963 insertions, 0 deletions

diff --git a/vendor/tracing-0.1.37/tests/macros.rs b/vendor/tracing-0.1.37/tests/macros.rs
new file mode 100644
index 000000000..a9679a3e9
--- /dev/null
+++ b/vendor/tracing-0.1.37/tests/macros.rs
@@ -0,0 +1,963 @@
+#![deny(warnings)]
+use tracing::{
+    callsite, debug, debug_span, enabled, error, error_span, event, event_enabled, info, info_span,
+    span, span_enabled, trace, trace_span, warn, warn_span, Level,
+};
+
+// Tests that macros work across various invocation syntax.
+//
+// These are quite repetitive, and _could_ be generated by a macro. However,
+// they're compile-time tests, so I want to get line numbers etc out of
+// failures, and producing them with a macro would muddy the waters a bit.
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span() {
+    span!(target: "foo_events", Level::DEBUG, "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    span!(target: "foo_events", Level::DEBUG, "foo", bar.baz = 2, quux = 3);
+    span!(target: "foo_events", Level::DEBUG, "foo", bar.baz = 2, quux = 4,);
+    span!(target: "foo_events", Level::DEBUG, "foo");
+    span!(target: "foo_events", Level::DEBUG, "bar",);
+    span!(Level::DEBUG, "foo", bar.baz = 2, quux = 3);
+    span!(Level::DEBUG, "foo", bar.baz = 2, quux = 4,);
+    span!(Level::DEBUG, "foo", bar.baz = 2, quux = 3);
+    span!(Level::DEBUG, "foo", bar.baz = 2, quux = 4,);
+    span!(Level::DEBUG, "foo", bar.baz = ?2);
+    span!(Level::DEBUG, "foo", bar.baz = %2);
+    span!(Level::DEBUG, "foo");
+    span!(Level::DEBUG, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace_span() {
+    trace_span!(target: "foo_events", "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    trace_span!(target: "foo_events", "foo", bar.baz = 2, quux = 3);
+    trace_span!(target: "foo_events", "foo", bar.baz = 2, quux = 4,);
+    trace_span!(target: "foo_events", "foo");
+    trace_span!(target: "foo_events", "bar",);
+    trace_span!("foo", bar.baz = 2, quux = 3);
+    trace_span!("foo", bar.baz = 2, quux = 4,);
+    trace_span!("foo", bar.baz = ?2);
+    trace_span!("foo", bar.baz = %2);
+    trace_span!("bar");
+    trace_span!("bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_span() {
+    debug_span!(target: "foo_events", "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    debug_span!(target: "foo_events", "foo", bar.baz = 2, quux = 3);
+    debug_span!(target: "foo_events", "foo", bar.baz = 2, quux = 4,);
+    debug_span!(target: "foo_events", "foo");
+    debug_span!(target: "foo_events", "bar",);
+    debug_span!("foo", bar.baz = 2, quux = 3);
+    debug_span!("foo", bar.baz = 2, quux = 4,);
+    debug_span!("foo", bar.baz = ?2);
+    debug_span!("foo", bar.baz = %2);
+    debug_span!("bar");
+    debug_span!("bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info_span() {
+    info_span!(target: "foo_events", "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    info_span!(target: "foo_events", "foo", bar.baz = 2, quux = 3);
+    info_span!(target: "foo_events", "foo", bar.baz = 2, quux = 4,);
+    info_span!(target: "foo_events", "foo");
+    info_span!(target: "foo_events", "bar",);
+    info_span!("foo", bar.baz = 2, quux = 3);
+    info_span!("foo", bar.baz = 2, quux = 4,);
+    info_span!("foo", bar.baz = ?2);
+    info_span!("foo", bar.baz = %2);
+    info_span!("bar");
+    info_span!("bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn_span() {
+    warn_span!(target: "foo_events", "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    warn_span!(target: "foo_events", "foo", bar.baz = 2, quux = 3);
+    warn_span!(target: "foo_events", "foo", bar.baz = 2, quux = 4,);
+    warn_span!(target: "foo_events", "foo");
+    warn_span!(target: "foo_events", "bar",);
+    warn_span!("foo", bar.baz = 2, quux = 3);
+    warn_span!("foo", bar.baz = 2, quux = 4,);
+    warn_span!("foo", bar.baz = ?2);
+    warn_span!("foo", bar.baz = %2);
+    warn_span!("bar");
+    warn_span!("bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error_span() {
+    error_span!(target: "foo_events", "foo", bar.baz = ?2, quux = %3, quuux = 4);
+    error_span!(target: "foo_events", "foo", bar.baz = 2, quux = 3);
+    error_span!(target: "foo_events", "foo", bar.baz = 2, quux = 4,);
+    error_span!(target: "foo_events", "foo");
+    error_span!(target: "foo_events", "bar",);
+    error_span!("foo", bar.baz = 2, quux = 3);
+    error_span!("foo", bar.baz = 2, quux = 4,);
+    error_span!("foo", bar.baz = ?2);
+    error_span!("foo", bar.baz = %2);
+    error_span!("bar");
+    error_span!("bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_root() {
+    span!(target: "foo_events", parent: None, Level::TRACE, "foo", bar.baz = 2, quux = 3);
+    span!(target: "foo_events", parent: None, Level::TRACE, "foo", bar.baz = 2, quux = 3);
+    span!(target: "foo_events", parent: None, Level::TRACE, "foo", bar.baz = 2, quux = 4,);
+    span!(target: "foo_events", parent: None, Level::TRACE, "foo");
+    span!(target: "foo_events", parent: None, Level::TRACE, "bar",);
+    span!(parent: None, Level::DEBUG, "foo", bar.baz = 2, quux = 3);
+    span!(parent: None, Level::DEBUG, "foo", bar.baz = 2, quux = 4,);
+    span!(parent: None, Level::DEBUG, "foo");
+    span!(parent: None, Level::DEBUG, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace_span_root() {
+    trace_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 3);
+    trace_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 4,);
+    trace_span!(target: "foo_events", parent: None, "foo");
+    trace_span!(target: "foo_events", parent: None, "bar",);
+    trace_span!(parent: None, "foo", bar.baz = 2, quux = 3);
+    trace_span!(parent: None, "foo", bar.baz = 2, quux = 4,);
+    trace_span!(parent: None, "foo");
+    trace_span!(parent: None, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_span_root() {
+    debug_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 3);
+    debug_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 4,);
+    debug_span!(target: "foo_events", parent: None, "foo");
+    debug_span!(target: "foo_events", parent: None, "bar",);
+    debug_span!(parent: None, "foo", bar.baz = 2, quux = 3);
+    debug_span!(parent: None, "foo", bar.baz = 2, quux = 4,);
+    debug_span!(parent: None, "foo");
+    debug_span!(parent: None, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info_span_root() {
+    info_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 3);
+    info_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 4,);
+    info_span!(target: "foo_events", parent: None, "foo");
+    info_span!(target: "foo_events", parent: None, "bar",);
+    info_span!(parent: None, "foo", bar.baz = 2, quux = 3);
+    info_span!(parent: None, "foo", bar.baz = 2, quux = 4,);
+    info_span!(parent: None, "foo");
+    info_span!(parent: None, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn_span_root() {
+    warn_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 3);
+    warn_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 4,);
+    warn_span!(target: "foo_events", parent: None, "foo");
+    warn_span!(target: "foo_events", parent: None, "bar",);
+    warn_span!(parent: None, "foo", bar.baz = 2, quux = 3);
+    warn_span!(parent: None, "foo", bar.baz = 2, quux = 4,);
+    warn_span!(parent: None, "foo");
+    warn_span!(parent: None, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error_span_root() {
+    error_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 3);
+    error_span!(target: "foo_events", parent: None, "foo", bar.baz = 2, quux = 4,);
+    error_span!(target: "foo_events", parent: None, "foo");
+    error_span!(target: "foo_events", parent: None, "bar",);
+    error_span!(parent: None, "foo", bar.baz = 2, quux = 3);
+    error_span!(parent: None, "foo", bar.baz = 2, quux = 4,);
+    error_span!(parent: None, "foo");
+    error_span!(parent: None, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    span!(target: "foo_events", parent: &p, Level::TRACE, "foo", bar.baz = 2, quux = 3);
+    span!(target: "foo_events", parent: &p, Level::TRACE, "foo", bar.baz = 2, quux = 4,);
+    span!(target: "foo_events", parent: &p, Level::TRACE, "foo");
+    span!(target: "foo_events", parent: &p, Level::TRACE, "bar",);
+    span!(parent: &p, Level::DEBUG, "foo", bar.baz = 2, quux = 3);
+    span!(parent: &p, Level::DEBUG, "foo", bar.baz = 2, quux = 4,);
+    span!(parent: &p, Level::DEBUG, "foo");
+    span!(parent: &p, Level::DEBUG, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace_span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    trace_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 3);
+    trace_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 4,);
+    trace_span!(target: "foo_events", parent: &p, "foo");
+    trace_span!(target: "foo_events", parent: &p, "bar",);
+
+    trace_span!(parent: &p, "foo", bar.baz = 2, quux = 3);
+    trace_span!(parent: &p, "foo", bar.baz = 2, quux = 4,);
+
+    trace_span!(parent: &p, "foo");
+    trace_span!(parent: &p, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    debug_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 3);
+    debug_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 4,);
+    debug_span!(target: "foo_events", parent: &p, "foo");
+    debug_span!(target: "foo_events", parent: &p, "bar",);
+
+    debug_span!(parent: &p, "foo", bar.baz = 2, quux = 3);
+    debug_span!(parent: &p, "foo", bar.baz = 2, quux = 4,);
+
+    debug_span!(parent: &p, "foo");
+    debug_span!(parent: &p, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info_span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    info_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 3);
+    info_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 4,);
+    info_span!(target: "foo_events", parent: &p, "foo");
+    info_span!(target: "foo_events", parent: &p, "bar",);
+
+    info_span!(parent: &p, "foo", bar.baz = 2, quux = 3);
+    info_span!(parent: &p, "foo", bar.baz = 2, quux = 4,);
+
+    info_span!(parent: &p, "foo");
+    info_span!(parent: &p, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn_span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    warn_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 3);
+    warn_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 4,);
+    warn_span!(target: "foo_events", parent: &p, "foo");
+    warn_span!(target: "foo_events", parent: &p, "bar",);
+
+    warn_span!(parent: &p, "foo", bar.baz = 2, quux = 3);
+    warn_span!(parent: &p, "foo", bar.baz = 2, quux = 4,);
+
+    warn_span!(parent: &p, "foo");
+    warn_span!(parent: &p, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error_span_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    error_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 3);
+    error_span!(target: "foo_events", parent: &p, "foo", bar.baz = 2, quux = 4,);
+    error_span!(target: "foo_events", parent: &p, "foo");
+    error_span!(target: "foo_events", parent: &p, "bar",);
+
+    error_span!(parent: &p, "foo", bar.baz = 2, quux = 3);
+    error_span!(parent: &p, "foo", bar.baz = 2, quux = 4,);
+
+    error_span!(parent: &p, "foo");
+    error_span!(parent: &p, "bar",);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_with_non_rust_symbol() {
+    span!(Level::TRACE, "non-rust", "guid:x-request-id" = ?"abcdef", "more {}", 42);
+    span!(Level::TRACE, "non-rust", "guid:x-request-id" = %"abcdef", "more {}", 51);
+    span!(
+        Level::TRACE,
+        "non-rust",
+        "guid:x-request-id" = "abcdef",
+        "more {}",
+        60
+    );
+    span!(Level::TRACE, "non-rust", "guid:x-request-id" = ?"abcdef");
+    span!(Level::TRACE, "non-rust", "guid:x-request-id" = %"abcdef");
+    span!(Level::TRACE, "non-rust", "guid:x-request-id" = "abcdef");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn event() {
+    event!(Level::DEBUG, foo = ?3, bar.baz = %2, quux = false);
+    event!(Level::DEBUG, foo = 3, bar.baz = 2, quux = false);
+    event!(Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(Level::DEBUG, "foo");
+    event!(Level::DEBUG, "foo: {}", 3);
+    event!(Level::INFO, foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    event!(
+        Level::INFO,
+        foo = 3,
+        bar.baz = 2,
+        quux = false,
+        "hello world {:?}",
+        42
+    );
+    event!(Level::INFO, foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    event!(Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(Level::DEBUG, { foo = ?2, bar.baz = %78 }, "quux");
+    event!(target: "foo_events", Level::DEBUG, foo = 3, bar.baz = 2, quux = false);
+    event!(target: "foo_events", Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(target: "foo_events", Level::DEBUG, "foo");
+    event!(target: "foo_events", Level::DEBUG, "foo: {}", 3);
+    event!(target: "foo_events", Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(target: "foo_events", Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(target: "foo_events", Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(target: "foo_events", Level::DEBUG, { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    event!(Level::DEBUG, ?foo);
+    event!(Level::DEBUG, %foo);
+    event!(Level::DEBUG, foo);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn enabled() {
+    enabled!(Level::DEBUG, foo, bar.baz, quux,);
+    enabled!(Level::DEBUG, message);
+    enabled!(Level::INFO, foo, bar.baz, quux, message,);
+    enabled!(Level::INFO, foo, bar., message,);
+    enabled!(Level::DEBUG, foo);
+
+    enabled!(Level::DEBUG);
+    enabled!(target: "rando", Level::DEBUG);
+    enabled!(target: "rando", Level::DEBUG, field);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_enabled() {
+    span_enabled!(Level::DEBUG, foo, bar.baz, quux,);
+    span_enabled!(Level::DEBUG, message);
+    span_enabled!(Level::INFO, foo, bar.baz, quux, message,);
+    span_enabled!(Level::INFO, foo, bar., message,);
+    span_enabled!(Level::DEBUG, foo);
+
+    span_enabled!(Level::DEBUG);
+    span_enabled!(target: "rando", Level::DEBUG);
+    span_enabled!(target: "rando", Level::DEBUG, field);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn event_enabled() {
+    event_enabled!(Level::DEBUG, foo, bar.baz, quux,);
+    event_enabled!(Level::DEBUG, message);
+    event_enabled!(Level::INFO, foo, bar.baz, quux, message,);
+    event_enabled!(Level::INFO, foo, bar., message,);
+    event_enabled!(Level::DEBUG, foo);
+
+    event_enabled!(Level::DEBUG);
+    event_enabled!(target: "rando", Level::DEBUG);
+    event_enabled!(target: "rando", Level::DEBUG, field);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn locals_with_message() {
+    let data = (42, "forty-two");
+    let private_data = "private";
+    let error = "a bad error";
+    event!(Level::ERROR, %error, "Received error");
+    event!(
+        target: "app_events",
+        Level::WARN,
+        private_data,
+        ?data,
+        "App warning: {}",
+        error
+    );
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn locals_no_message() {
+    let data = (42, "forty-two");
+    let private_data = "private";
+    let error = "a bad error";
+    event!(
+        target: "app_events",
+        Level::WARN,
+        private_data,
+        ?data,
+    );
+    event!(
+        target: "app_events",
+        Level::WARN,
+        private_data,
+        ?data,
+        error,
+    );
+    event!(
+        target: "app_events",
+        Level::WARN,
+        private_data,
+        ?data,
+        error
+    );
+    event!(Level::WARN, private_data, ?data, error,);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace() {
+    trace!(foo = ?3, bar.baz = %2, quux = false);
+    trace!(foo = 3, bar.baz = 2, quux = false);
+    trace!(foo = 3, bar.baz = 3,);
+    trace!("foo");
+    trace!("foo: {}", 3);
+    trace!(foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    trace!(foo = 3, bar.baz = 2, quux = false, "hello world {:?}", 42);
+    trace!(foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    trace!({ foo = 3, bar.baz = 80 }, "quux");
+    trace!({ foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!({ foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!({ foo = 2, bar.baz = 78 }, "quux");
+    trace!({ foo = ?2, bar.baz = %78 }, "quux");
+    trace!(target: "foo_events", foo = 3, bar.baz = 2, quux = false);
+    trace!(target: "foo_events", foo = 3, bar.baz = 3,);
+    trace!(target: "foo_events", "foo");
+    trace!(target: "foo_events", "foo: {}", 3);
+    trace!(target: "foo_events", { foo = 3, bar.baz = 80 }, "quux");
+    trace!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!(target: "foo_events", { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    trace!(?foo);
+    trace!(%foo);
+    trace!(foo);
+    trace!(target: "foo_events", ?foo);
+    trace!(target: "foo_events", %foo);
+    trace!(target: "foo_events", foo);
+    trace!(target: "foo_events", ?foo, true, "message");
+    trace!(target: "foo_events", %foo, true, "message");
+    trace!(target: "foo_events", foo, true, "message");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug() {
+    debug!(foo = ?3, bar.baz = %2, quux = false);
+    debug!(foo = 3, bar.baz = 2, quux = false);
+    debug!(foo = 3, bar.baz = 3,);
+    debug!("foo");
+    debug!("foo: {}", 3);
+    debug!(foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    debug!(foo = 3, bar.baz = 2, quux = false, "hello world {:?}", 42);
+    debug!(foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    debug!({ foo = 3, bar.baz = 80 }, "quux");
+    debug!({ foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!({ foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!({ foo = 2, bar.baz = 78 }, "quux");
+    debug!({ foo = ?2, bar.baz = %78 }, "quux");
+    debug!(target: "foo_events", foo = 3, bar.baz = 2, quux = false);
+    debug!(target: "foo_events", foo = 3, bar.baz = 3,);
+    debug!(target: "foo_events", "foo");
+    debug!(target: "foo_events", "foo: {}", 3);
+    debug!(target: "foo_events", { foo = 3, bar.baz = 80 }, "quux");
+    debug!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!(target: "foo_events", { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    debug!(?foo);
+    debug!(%foo);
+    debug!(foo);
+    debug!(target: "foo_events", ?foo);
+    debug!(target: "foo_events", %foo);
+    debug!(target: "foo_events", foo);
+    debug!(target: "foo_events", ?foo, true, "message");
+    debug!(target: "foo_events", %foo, true, "message");
+    debug!(target: "foo_events", foo, true, "message");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info() {
+    info!(foo = ?3, bar.baz = %2, quux = false);
+    info!(foo = 3, bar.baz = 2, quux = false);
+    info!(foo = 3, bar.baz = 3,);
+    info!("foo");
+    info!("foo: {}", 3);
+    info!(foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    info!(foo = 3, bar.baz = 2, quux = false, "hello world {:?}", 42);
+    info!(foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    info!({ foo = 3, bar.baz = 80 }, "quux");
+    info!({ foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!({ foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!({ foo = 2, bar.baz = 78 }, "quux");
+    info!({ foo = ?2, bar.baz = %78 }, "quux");
+    info!(target: "foo_events", foo = 3, bar.baz = 2, quux = false);
+    info!(target: "foo_events", foo = 3, bar.baz = 3,);
+    info!(target: "foo_events", "foo");
+    info!(target: "foo_events", "foo: {}", 3);
+    info!(target: "foo_events", { foo = 3, bar.baz = 80 }, "quux");
+    info!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!(target: "foo_events", { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    info!(?foo);
+    info!(%foo);
+    info!(foo);
+    info!(target: "foo_events", ?foo);
+    info!(target: "foo_events", %foo);
+    info!(target: "foo_events", foo);
+    info!(target: "foo_events", ?foo, true, "message");
+    info!(target: "foo_events", %foo, true, "message");
+    info!(target: "foo_events", foo, true, "message");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn() {
+    warn!(foo = ?3, bar.baz = %2, quux = false);
+    warn!(foo = 3, bar.baz = 2, quux = false);
+    warn!(foo = 3, bar.baz = 3,);
+    warn!("foo");
+    warn!("foo: {}", 3);
+    warn!(foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    warn!(foo = 3, bar.baz = 2, quux = false, "hello world {:?}", 42);
+    warn!(foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    warn!({ foo = 3, bar.baz = 80 }, "quux");
+    warn!({ foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!({ foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!({ foo = 2, bar.baz = 78 }, "quux");
+    warn!({ foo = ?2, bar.baz = %78 }, "quux");
+    warn!(target: "foo_events", foo = 3, bar.baz = 2, quux = false);
+    warn!(target: "foo_events", foo = 3, bar.baz = 3,);
+    warn!(target: "foo_events", "foo");
+    warn!(target: "foo_events", "foo: {}", 3);
+    warn!(target: "foo_events", { foo = 3, bar.baz = 80 }, "quux");
+    warn!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!(target: "foo_events", { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    warn!(?foo);
+    warn!(%foo);
+    warn!(foo);
+    warn!(target: "foo_events", ?foo);
+    warn!(target: "foo_events", %foo);
+    warn!(target: "foo_events", foo);
+    warn!(target: "foo_events", ?foo, true, "message");
+    warn!(target: "foo_events", %foo, true, "message");
+    warn!(target: "foo_events", foo, true, "message");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error() {
+    error!(foo = ?3, bar.baz = %2, quux = false);
+    error!(foo = 3, bar.baz = 2, quux = false);
+    error!(foo = 3, bar.baz = 3,);
+    error!("foo");
+    error!("foo: {}", 3);
+    error!(foo = ?3, bar.baz = %2, quux = false, "hello world {:?}", 42);
+    error!(foo = 3, bar.baz = 2, quux = false, "hello world {:?}", 42);
+    error!(foo = 3, bar.baz = 3, "hello world {:?}", 42,);
+    error!({ foo = 3, bar.baz = 80 }, "quux");
+    error!({ foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!({ foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!({ foo = 2, bar.baz = 78, }, "quux");
+    error!({ foo = ?2, bar.baz = %78 }, "quux");
+    error!(target: "foo_events", foo = 3, bar.baz = 2, quux = false);
+    error!(target: "foo_events", foo = 3, bar.baz = 3,);
+    error!(target: "foo_events", "foo");
+    error!(target: "foo_events", "foo: {}", 3);
+    error!(target: "foo_events", { foo = 3, bar.baz = 80 }, "quux");
+    error!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!(target: "foo_events", { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!(target: "foo_events", { foo = 2, bar.baz = 78, }, "quux");
+    let foo = 1;
+    error!(?foo);
+    error!(%foo);
+    error!(foo);
+    error!(target: "foo_events", ?foo);
+    error!(target: "foo_events", %foo);
+    error!(target: "foo_events", foo);
+    error!(target: "foo_events", ?foo, true, "message");
+    error!(target: "foo_events", %foo, true, "message");
+    error!(target: "foo_events", foo, true, "message");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn event_root() {
+    event!(parent: None, Level::DEBUG, foo = ?3, bar.baz = %2, quux = false);
+    event!(
+        parent: None,
+        Level::DEBUG,
+        foo = 3,
+        bar.baz = 2,
+        quux = false
+    );
+    event!(parent: None, Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(parent: None, Level::DEBUG, "foo");
+    event!(parent: None, Level::DEBUG, "foo: {}", 3);
+    event!(parent: None, Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(parent: None, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(parent: None, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(parent: None, Level::DEBUG, { foo = ?2, bar.baz = %78 }, "quux");
+    event!(target: "foo_events", parent: None, Level::DEBUG, foo = 3, bar.baz = 2, quux = false);
+    event!(target: "foo_events", parent: None, Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(target: "foo_events", parent: None, Level::DEBUG, "foo");
+    event!(target: "foo_events", parent: None, Level::DEBUG, "foo: {}", 3);
+    event!(target: "foo_events", parent: None, Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(target: "foo_events", parent: None, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(target: "foo_events", parent: None, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(target: "foo_events", parent: None, Level::DEBUG, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace_root() {
+    trace!(parent: None, foo = ?3, bar.baz = %2, quux = false);
+    trace!(parent: None, foo = 3, bar.baz = 2, quux = false);
+    trace!(parent: None, foo = 3, bar.baz = 3,);
+    trace!(parent: None, "foo");
+    trace!(parent: None, "foo: {}", 3);
+    trace!(parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    trace!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!(parent: None, { foo = 2, bar.baz = 78 }, "quux");
+    trace!(parent: None, { foo = ?2, bar.baz = %78 }, "quux");
+    trace!(target: "foo_events", parent: None, foo = 3, bar.baz = 2, quux = false);
+    trace!(target: "foo_events", parent: None, foo = 3, bar.baz = 3,);
+    trace!(target: "foo_events", parent: None, "foo");
+    trace!(target: "foo_events", parent: None, "foo: {}", 3);
+    trace!(target: "foo_events", parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    trace!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!(target: "foo_events", parent: None, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_root() {
+    debug!(parent: None, foo = ?3, bar.baz = %2, quux = false);
+    debug!(parent: None, foo = 3, bar.baz = 2, quux = false);
+    debug!(parent: None, foo = 3, bar.baz = 3,);
+    debug!(parent: None, "foo");
+    debug!(parent: None, "foo: {}", 3);
+    debug!(parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    debug!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!(parent: None, { foo = 2, bar.baz = 78 }, "quux");
+    debug!(parent: None, { foo = ?2, bar.baz = %78 }, "quux");
+    debug!(target: "foo_events", parent: None, foo = 3, bar.baz = 2, quux = false);
+    debug!(target: "foo_events", parent: None, foo = 3, bar.baz = 3,);
+    debug!(target: "foo_events", parent: None, "foo");
+    debug!(target: "foo_events", parent: None, "foo: {}", 3);
+    debug!(target: "foo_events", parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    debug!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!(target: "foo_events", parent: None, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info_root() {
+    info!(parent: None, foo = ?3, bar.baz = %2, quux = false);
+    info!(parent: None, foo = 3, bar.baz = 2, quux = false);
+    info!(parent: None, foo = 3, bar.baz = 3,);
+    info!(parent: None, "foo");
+    info!(parent: None, "foo: {}", 3);
+    info!(parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    info!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!(parent: None, { foo = 2, bar.baz = 78 }, "quux");
+    info!(parent: None, { foo = ?2, bar.baz = %78 }, "quux");
+    info!(target: "foo_events", parent: None, foo = 3, bar.baz = 2, quux = false);
+    info!(target: "foo_events", parent: None, foo = 3, bar.baz = 3,);
+    info!(target: "foo_events", parent: None, "foo");
+    info!(target: "foo_events", parent: None, "foo: {}", 3);
+    info!(target: "foo_events", parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    info!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!(target: "foo_events", parent: None, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn_root() {
+    warn!(parent: None, foo = ?3, bar.baz = %2, quux = false);
+    warn!(parent: None, foo = 3, bar.baz = 2, quux = false);
+    warn!(parent: None, foo = 3, bar.baz = 3,);
+    warn!(parent: None, "foo");
+    warn!(parent: None, "foo: {}", 3);
+    warn!(parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    warn!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!(parent: None, { foo = 2, bar.baz = 78 }, "quux");
+    warn!(parent: None, { foo = ?2, bar.baz = %78 }, "quux");
+    warn!(target: "foo_events", parent: None, foo = 3, bar.baz = 2, quux = false);
+    warn!(target: "foo_events", parent: None, foo = 3, bar.baz = 3,);
+    warn!(target: "foo_events", parent: None, "foo");
+    warn!(target: "foo_events", parent: None, "foo: {}", 3);
+    warn!(target: "foo_events", parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    warn!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!(target: "foo_events", parent: None, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error_root() {
+    error!(parent: None, foo = ?3, bar.baz = %2, quux = false);
+    error!(parent: None, foo = 3, bar.baz = 2, quux = false);
+    error!(parent: None, foo = 3, bar.baz = 3,);
+    error!(parent: None, "foo");
+    error!(parent: None, "foo: {}", 3);
+    error!(parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    error!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!(parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!(parent: None, { foo = 2, bar.baz = 78 }, "quux");
+    error!(parent: None, { foo = ?2, bar.baz = %78 }, "quux");
+    error!(target: "foo_events", parent: None, foo = 3, bar.baz = 2, quux = false);
+    error!(target: "foo_events", parent: None, foo = 3, bar.baz = 3,);
+    error!(target: "foo_events", parent: None, "foo");
+    error!(target: "foo_events", parent: None, "foo: {}", 3);
+    error!(target: "foo_events", parent: None, { foo = 3, bar.baz = 80 }, "quux");
+    error!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!(target: "foo_events", parent: None, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!(target: "foo_events", parent: None, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn event_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    event!(parent: &p, Level::DEBUG, foo = ?3, bar.baz = %2, quux = false);
+    event!(parent: &p, Level::DEBUG, foo = 3, bar.baz = 2, quux = false);
+    event!(parent: &p, Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(parent: &p, Level::DEBUG, "foo");
+    event!(parent: &p, Level::DEBUG, "foo: {}", 3);
+    event!(parent: &p, Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(parent: &p, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(parent: &p, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(parent: &p, Level::DEBUG, { foo = ?2, bar.baz = %78 }, "quux");
+    event!(target: "foo_events", parent: &p, Level::DEBUG, foo = 3, bar.baz = 2, quux = false);
+    event!(target: "foo_events", parent: &p, Level::DEBUG, foo = 3, bar.baz = 3,);
+    event!(target: "foo_events", parent: &p, Level::DEBUG, "foo");
+    event!(target: "foo_events", parent: &p, Level::DEBUG, "foo: {}", 3);
+    event!(target: "foo_events", parent: &p, Level::DEBUG, { foo = 3, bar.baz = 80 }, "quux");
+    event!(target: "foo_events", parent: &p, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    event!(target: "foo_events", parent: &p, Level::DEBUG, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    event!(target: "foo_events", parent: &p, Level::DEBUG, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn trace_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    trace!(parent: &p, foo = ?3, bar.baz = %2, quux = false);
+    trace!(parent: &p, foo = 3, bar.baz = 2, quux = false);
+    trace!(parent: &p, foo = 3, bar.baz = 3,);
+    trace!(parent: &p, "foo");
+    trace!(parent: &p, "foo: {}", 3);
+    trace!(parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    trace!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!(parent: &p, { foo = 2, bar.baz = 78 }, "quux");
+    trace!(parent: &p, { foo = ?2, bar.baz = %78 }, "quux");
+    trace!(target: "foo_events", parent: &p, foo = 3, bar.baz = 2, quux = false);
+    trace!(target: "foo_events", parent: &p, foo = 3, bar.baz = 3,);
+    trace!(target: "foo_events", parent: &p, "foo");
+    trace!(target: "foo_events", parent: &p, "foo: {}", 3);
+    trace!(target: "foo_events", parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    trace!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    trace!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    trace!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    debug!(parent: &p, foo = ?3, bar.baz = %2, quux = false);
+    debug!(parent: &p, foo = 3, bar.baz = 2, quux = false);
+    debug!(parent: &p, foo = 3, bar.baz = 3,);
+    debug!(parent: &p, "foo");
+    debug!(parent: &p, "foo: {}", 3);
+    debug!(parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    debug!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!(parent: &p, { foo = 2, bar.baz = 78 }, "quux");
+    debug!(parent: &p, { foo = ?2, bar.baz = %78 }, "quux");
+    debug!(target: "foo_events", parent: &p, foo = 3, bar.baz = 2, quux = false);
+    debug!(target: "foo_events", parent: &p, foo = 3, bar.baz = 3,);
+    debug!(target: "foo_events", parent: &p, "foo");
+    debug!(target: "foo_events", parent: &p, "foo: {}", 3);
+    debug!(target: "foo_events", parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    debug!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    debug!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    debug!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn info_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    info!(parent: &p, foo = ?3, bar.baz = %2, quux = false);
+    info!(parent: &p, foo = 3, bar.baz = 2, quux = false);
+    info!(parent: &p, foo = 3, bar.baz = 3,);
+    info!(parent: &p, "foo");
+    info!(parent: &p, "foo: {}", 3);
+    info!(parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    info!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!(parent: &p, { foo = 2, bar.baz = 78 }, "quux");
+    info!(parent: &p, { foo = ?2, bar.baz = %78 }, "quux");
+    info!(target: "foo_events", parent: &p, foo = 3, bar.baz = 2, quux = false);
+    info!(target: "foo_events", parent: &p, foo = 3, bar.baz = 3,);
+    info!(target: "foo_events", parent: &p, "foo");
+    info!(target: "foo_events", parent: &p, "foo: {}", 3);
+    info!(target: "foo_events", parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    info!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    info!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    info!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn warn_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    warn!(parent: &p, foo = ?3, bar.baz = %2, quux = false);
+    warn!(parent: &p, foo = 3, bar.baz = 2, quux = false);
+    warn!(parent: &p, foo = 3, bar.baz = 3,);
+    warn!(parent: &p, "foo");
+    warn!(parent: &p, "foo: {}", 3);
+    warn!(parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    warn!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!(parent: &p, { foo = 2, bar.baz = 78 }, "quux");
+    warn!(parent: &p, { foo = ?2, bar.baz = %78 }, "quux");
+    warn!(target: "foo_events", parent: &p, foo = 3, bar.baz = 2, quux = false);
+    warn!(target: "foo_events", parent: &p, foo = 3, bar.baz = 3,);
+    warn!(target: "foo_events", parent: &p, "foo");
+    warn!(target: "foo_events", parent: &p, "foo: {}", 3);
+    warn!(target: "foo_events", parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    warn!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    warn!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    warn!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn error_with_parent() {
+    let p = span!(Level::TRACE, "im_a_parent!");
+    error!(parent: &p, foo = ?3, bar.baz = %2, quux = false);
+    error!(parent: &p, foo = 3, bar.baz = 2, quux = false);
+    error!(parent: &p, foo = 3, bar.baz = 3,);
+    error!(parent: &p, "foo");
+    error!(parent: &p, "foo: {}", 3);
+    error!(parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    error!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!(parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!(parent: &p, { foo = 2, bar.baz = 78 }, "quux");
+    error!(parent: &p, { foo = ?2, bar.baz = %78 }, "quux");
+    error!(target: "foo_events", parent: &p, foo = 3, bar.baz = 2, quux = false);
+    error!(target: "foo_events", parent: &p, foo = 3, bar.baz = 3,);
+    error!(target: "foo_events", parent: &p, "foo");
+    error!(target: "foo_events", parent: &p, "foo: {}", 3);
+    error!(target: "foo_events", parent: &p, { foo = 3, bar.baz = 80 }, "quux");
+    error!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}", true);
+    error!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 79 }, "quux {:?}, {quux}", true, quux = false);
+    error!(target: "foo_events", parent: &p, { foo = 2, bar.baz = 78, }, "quux");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn field_shorthand_only() {
+    #[derive(Debug)]
+    struct Position {
+        x: f32,
+        y: f32,
+    }
+    let pos = Position {
+        x: 3.234,
+        y: -1.223,
+    };
+
+    trace!(?pos.x, ?pos.y);
+    debug!(?pos.x, ?pos.y);
+    info!(?pos.x, ?pos.y);
+    warn!(?pos.x, ?pos.y);
+    error!(?pos.x, ?pos.y);
+    event!(Level::TRACE, ?pos.x, ?pos.y);
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn borrow_val_events() {
+    // Reproduces https://github.com/tokio-rs/tracing/issues/954
+    let mut foo = (String::new(), String::new());
+    let zero = &mut foo.0;
+    trace!(one = ?foo.1);
+    debug!(one = ?foo.1);
+    info!(one = ?foo.1);
+    warn!(one = ?foo.1);
+    error!(one = ?foo.1);
+    zero.push_str("hello world");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn borrow_val_spans() {
+    // Reproduces https://github.com/tokio-rs/tracing/issues/954
+    let mut foo = (String::new(), String::new());
+    let zero = &mut foo.0;
+    let _span = trace_span!("span", one = ?foo.1);
+    let _span = debug_span!("span", one = ?foo.1);
+    let _span = info_span!("span", one = ?foo.1);
+    let _span = warn_span!("span", one = ?foo.1);
+    let _span = error_span!("span", one = ?foo.1);
+    zero.push_str("hello world");
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn callsite_macro_api() {
+    // This test should catch any inadvertent breaking changes
+    // caused by changes to the macro.
+    let _callsite = callsite! {
+        name: "test callsite",
+        kind: tracing::metadata::Kind::EVENT,
+        target: "test target",
+        level: tracing::Level::TRACE,
+        fields: foo, bar,
+    };
+    let _callsite = callsite! {
+        name: "test callsite",
+        kind: tracing::metadata::Kind::SPAN,
+        level: tracing::Level::TRACE,
+        fields: foo,
+    };
+    let _callsite = callsite! {
+        name: "test callsite",
+        kind: tracing::metadata::Kind::SPAN,
+        fields: foo,
+    };
+}