use built-in 'Default' trait

capnp-futures/test/test.rs

@@ -114,7 +114,7 @@ mod tests {
 
         let io = futures::future::join(done_reading, write_queue.map(|_| ()));
 
-        let mut m = capnp::message::Builder::new_default();
+        let mut m = capnp::message::Builder::default();
         populate_address_book(m.init_root());
 
         spawner.spawn_local(sender.send(m).map(|_| ())).unwrap();
@@ -153,7 +153,7 @@ mod tests {
 
     #[test]
     fn single_segment() {
-        fill_and_send_message(capnp::message::Builder::new_default());
+        fill_and_send_message(capnp::message::Builder::default());
     }
 
     #[test]
@@ -169,7 +169,7 @@ mod tests {
     fn static_lifetime_not_required_funcs() {
         let (mut write, mut read) = async_byte_channel::channel();
         let _ = serialize::try_read_message(&mut read, message::ReaderOptions::default());
-        let _ = serialize::write_message(&mut write, message::Builder::new_default());
+        let _ = serialize::write_message(&mut write, message::Builder::default());
     }
 
     #[test]

capnp-rpc/src/broken.rs

@@ -59,7 +59,7 @@ impl Request {
     pub fn new(error: Error, _size_hint: Option<::capnp::MessageSize>) -> Self {
         Self {
             error,
-            message: ::capnp::message::Builder::new_default(),
+            message: ::capnp::message::Builder::default(),
             cap_table: Vec::new(),
         }
     }

capnp-rpc/src/local.rs

@@ -90,7 +90,7 @@ struct Results {
 impl Results {
     fn new(fulfiller: oneshot::Sender<Box<dyn ResultsDoneHook>>) -> Self {
         Self {
-            message: Some(::capnp::message::Builder::new_default()),
+            message: Some(::capnp::message::Builder::default()),
             cap_table: Vec::new(),
             results_done_fulfiller: Some(fulfiller),
         }
@@ -191,7 +191,7 @@ impl Request {
         client: Box<dyn ClientHook>,
     ) -> Self {
         Self {
-            message: message::Builder::new_default(),
+            message: message::Builder::default(),
             cap_table: Vec::new(),
             interface_id,
             method_id,

capnp-rpc/src/rpc.rs

@@ -2209,7 +2209,7 @@
                 }
                 _ => {
                     self.variant = Some(ResultsVariant::LocallyRedirected(
-                        ::capnp::message::Builder::new_default(),
+                        ::capnp::message::Builder::default(),
                         Vec::new(),
                     ));
                 }

capnp-rpc/src/twoparty.rs

@@ -151,7 +151,7 @@ where
         _first_segment_word_size: u32,
     ) -> Box<dyn crate::OutgoingMessage> {
         Box::new(OutgoingMessage {
-            message: ::capnp::message::Builder::new_default(),
+            message: ::capnp::message::Builder::default(),
             sender: self.inner.borrow().sender.clone(),
         })
     }

capnp-rpc/test/test.rs

@@ -352,7 +352,7 @@ fn pipelining_return_null() {
 
 #[test]
 fn null_capability() {
-    let mut message = ::capnp::message::Builder::new_default();
+    let mut message = ::capnp::message::Builder::default();
     let root: crate::test_capnp::test_all_types::Builder = message.get_root().unwrap();
 
     // In capnproto-c++, this would return a BrokenCap. Here, it returns a decode error.

capnp/fuzz/fuzzers/test_all_types.rs

@@ -129,7 +129,7 @@ fn try_go(mut data: &[u8]) -> ::capnp::Result<()> {
     root.total_size()?;
     traverse(root)?;
 
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     message.set_root(root)?;
 
     assert_equal(

capnp/src/any_pointer.rs

@@ -292,7 +292,7 @@ impl<'a> From<Builder<'a>> for crate::dynamic_value::Builder<'a> {
 #[cfg(feature = "alloc")]
 #[test]
 fn init_clears_value() {
-    let mut message = crate::message::Builder::new_default();
+    let mut message = crate::message::Builder::default();
     {
         let root: crate::any_pointer::Builder = message.init_root();
         let mut list: crate::primitive_list::Builder<u16> = root.initn_as(10);

capnp/src/message.rs

@@ -51,7 +51,7 @@
 //! use capnp::message::{self, TypedBuilder, TypedReader};
 //!
 //! fn main() {
-//!     let mut builder = TypedBuilder::<simple_struct::Owned>::new_default();
+//!     let mut builder = TypedBuilder::<simple_struct::Owned>::default();
 //!     let mut builder_root = builder.init_root();
 //!     builder_root.set_x(10);
 //!     builder_root.set_y(20);
@@ -462,7 +462,7 @@
 
     pub fn get_root_as_reader<'a, T: FromPointerReader<'a>>(&'a self) -> Result<T> {
         if self.arena.is_empty() {
-            any_pointer::Reader::new(layout::PointerReader::new_default()).get_as()
+            any_pointer::Reader::new(layout::PointerReader::default()).get_as()
         } else {
             let (segment_start, _segment_len) = self.arena.get_segment(0)?;
             let pointer_reader = layout::PointerReader::get_root(
@@ -571,8 +571,19 @@
 where
     T: Owned,
 {
+    #[deprecated(since = "0.18.7", note = "use `TypedBuilder::default()`")]
     pub fn new_default() -> Self {
-        Self::new(Builder::new_default())
+        Self::default()
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl<T> Default for TypedBuilder<T, HeapAllocator>
+where
+    T: Owned,
+{
+    fn default() -> Self {
+        Self::new(Builder::default())
     }
 }
 
@@ -764,7 +775,17 @@
 impl Builder<HeapAllocator> {
     /// Constructs a new `message::Builder<HeapAllocator>` whose first segment has length
     /// `SUGGESTED_FIRST_SEGMENT_WORDS`.
+    #[deprecated(since = "0.18.7", note = "use `Builder::default()`")]
     pub fn new_default() -> Self {
+        Self::default()
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Default for Builder<HeapAllocator> {
+    /// Constructs a new `message::Builder<HeapAllocator>` whose first segment has length
+    /// `SUGGESTED_FIRST_SEGMENT_WORDS`.
+    fn default() -> Self {
         Self::new(HeapAllocator::new())
     }
 }

capnp/src/private/layout.rs

@@ -1348,7 +1348,7 @@
 
         if (*orig_ref).is_null() {
             if default_value.is_null() || (*(default_value as *const WirePointer)).is_null() {
-                return Ok(ListBuilder::new_default(arena));
+                return Ok(ListBuilder::new(arena));
             }
             let (new_orig_ref_target, new_orig_ref, new_orig_segment_id) = copy_message(
                 arena,
@@ -1478,7 +1478,7 @@
 
         if (*orig_ref).is_null() {
             if default_value.is_null() || (*(default_value as *const WirePointer)).is_null() {
-                return Ok(ListBuilder::new_default(arena));
+                return Ok(ListBuilder::new(arena));
             }
             let (new_orig_ref_target, new_orig_ref, new_orig_segment_id) = copy_message(
                 arena,
@@ -2352,9 +2352,9 @@
     ) -> Result<StructReader<'a>> {
         if (*reff).is_null() {
             match default {
-                None => return Ok(StructReader::new_default()),
+                None => return Ok(StructReader::default()),
                 Some(d) if (*(d.as_ptr() as *const WirePointer)).is_null() => {
-                    return Ok(StructReader::new_default())
+                    return Ok(StructReader::default())
                 }
                 Some(d) => {
                     reff = d.as_ptr() as *const _;
@@ -2440,7 +2440,7 @@
     ) -> Result<ListReader<'_>> {
         if (*reff).is_null() {
             if default_value.is_null() || (*(default_value as *const WirePointer)).is_null() {
-                return Ok(ListReader::new_default());
+                return Ok(ListReader::default());
             }
             reff = default_value as *const _;
             arena = &super::NULL_ARENA;
@@ -2842,16 +2842,23 @@
     nesting_limit: i32,
 }
 
-impl<'a> PointerReader<'a> {
-    pub fn new_default<'b>() -> PointerReader<'b> {
-        PointerReader {
+impl<'a> Default for PointerReader<'a> {
+    fn default() -> Self {
+        Self {
             arena: &NULL_ARENA,
             segment_id: 0,
             cap_table: Default::default(),
             pointer: ptr::null(),
             nesting_limit: 0x7fffffff,
         }
     }
+}
+
+impl<'a> PointerReader<'a> {
+    #[deprecated(since = "0.18.7", note = "use `PointerReader::default()`")]
+    pub fn new_default() -> Self {
+        Self::default()
+    }
 
     pub fn get_root(
         arena: &'a dyn ReaderArena,
@@ -3375,9 +3382,9 @@
     nesting_limit: i32,
 }
 
-impl<'a> StructReader<'a> {
-    pub fn new_default<'b>() -> StructReader<'b> {
-        StructReader {
+impl<'a> Default for StructReader<'a> {
+    fn default() -> Self {
+        Self {
             arena: &NULL_ARENA,
             segment_id: 0,
             cap_table: Default::default(),
@@ -3388,6 +3395,13 @@
             nesting_limit: 0x7fffffff,
         }
     }
+}
+
+impl<'a> StructReader<'a> {
+    #[deprecated(since = "0.18.7", note = "use `StructReader::default()`")]
+    pub fn new_default() -> Self {
+        Self::default()
+    }
 
     pub fn imbue(&mut self, cap_table: CapTableReader) {
         self.cap_table = cap_table
@@ -3479,7 +3493,7 @@
                 nesting_limit: self.nesting_limit,
             }
         } else {
-            PointerReader::new_default()
+            PointerReader::default()
         }
     }
 
@@ -3786,9 +3800,9 @@
     element_size: ElementSize,
 }
 
-impl<'a> ListReader<'a> {
-    pub fn new_default<'b>() -> ListReader<'b> {
-        ListReader {
+impl<'a> Default for ListReader<'a> {
+    fn default() -> Self {
+        Self {
             arena: &NULL_ARENA,
             segment_id: 0,
             cap_table: Default::default(),
@@ -3801,6 +3815,13 @@
             nesting_limit: 0x7fffffff,
         }
     }
+}
+
+impl<'a> ListReader<'a> {
+    #[deprecated(since = "0.18.7", note = "use `ListReader::default()`")]
+    pub fn new_default() -> Self {
+        Self::default()
+    }
 
     pub fn imbue(&mut self, cap_table: CapTableReader) {
         self.cap_table = cap_table
@@ -3996,8 +4017,14 @@
 
 impl<'a> ListBuilder<'a> {
     #[inline]
-    pub fn new_default(arena: &mut dyn BuilderArena) -> ListBuilder<'_> {
-        ListBuilder {
+    #[deprecated(since = "0.18.7", note = "use `ListBuilder::new()`")]
+    pub fn new_default(arena: &'a mut dyn BuilderArena) -> Self {
+        Self::new(arena)
+    }
+
+    #[inline]
+    pub fn new(arena: &'a mut dyn BuilderArena) -> Self {
+        Self {
             arena,
             segment_id: 0,
             cap_table: Default::default(),

capnp/src/serialize.rs

@@ -1073,7 +1073,7 @@ pub mod test {
     #[test]
     fn compute_serialized_size() {
         const LIST_LENGTH_IN_WORDS: u32 = 5;
-        let mut m = message::Builder::new_default();
+        let mut m = message::Builder::default();
         {
             let root: crate::any_pointer::Builder = m.init_root();
             let _list_builder: crate::primitive_list::Builder<u64> =

capnpc/test/dynamic.rs

@@ -5,7 +5,7 @@
 
 #[test]
 fn test_dynamic_reader() {
-    let mut builder = message::Builder::new_default();
+    let mut builder = message::Builder::default();
     let root: test_all_types::Builder<'_> = builder.init_root();
     let mut root: dynamic_value::Builder<'_> = root.into();
 
@@ -18,7 +18,7 @@
 
 #[test]
 fn test_dynamic_builder() {
-    let mut builder = message::Builder::new_default();
+    let mut builder = message::Builder::default();
     let root: test_all_types::Builder<'_> = builder.init_root();
     let mut root: dynamic_value::Builder<'_> = root.into();
     test_util::dynamic_init_test_message(root.reborrow().downcast());
@@ -32,7 +32,7 @@
 fn test_defaults() {
     use crate::test_capnp::test_defaults;
 
-    let message = message::Builder::new_default();
+    let message = message::Builder::default();
     let test_defaults = message
         .get_root_as_reader::<test_defaults::Reader<'_>>()
         .expect("get_root_as_reader()");
@@ -44,7 +44,7 @@
 fn test_defaults_builder() {
     use crate::test_capnp::test_defaults;
 
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let test_defaults = message.get_root::<test_defaults::Builder<'_>>().unwrap();
     let root: dynamic_value::Builder<'_> = test_defaults.into();
     test_util::dynamic_check_test_message_builder(root.downcast());
@@ -54,7 +54,7 @@
 fn test_unions() {
     use crate::test_capnp::test_union;
     use capnp::{dynamic_struct, dynamic_value};
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let mut root: test_union::Builder<'_> = message.init_root();
     root.reborrow().get_union0().set_u0f1s32(1234567);
     root.reborrow().get_union1().set_u1f1sp("foo");
@@ -150,7 +150,7 @@
 fn test_generics() {
     use crate::test_capnp::{test_all_types, test_generics};
     use capnp::text;
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let root: test_generics::Builder<'_, test_all_types::Owned, text::Owned> = message.init_root();
 
     let root: dynamic_value::Builder<'_> = root.into();
@@ -179,7 +179,7 @@
 #[test]
 fn test_generic_annotation() -> ::capnp::Result<()> {
     use crate::test_capnp::{test_generics, test_use_generics};
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let root: test_use_generics::Builder<'_> = message.init_root();
     let root: dynamic_value::Builder<'_> = root.into();
     let root: dynamic_struct::Builder<'_> = root.downcast();
@@ -198,7 +198,7 @@
 fn test_complex_list() {
     use crate::test_capnp::test_complex_list;
 
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let root = message.init_root::<test_complex_list::Builder<'_>>();
     let root: dynamic_value::Builder<'_> = root.into();
     let mut root: dynamic_struct::Builder<'_> = root.downcast();
@@ -237,7 +237,7 @@
 #[test]
 fn test_stringify() {
     use crate::test_capnp::{test_all_types, TestEnum};
-    let mut message = message::Builder::new_default();
+    let mut message = message::Builder::default();
     let mut root: test_all_types::Builder<'_> = message.init_root();
     root.set_int8_field(3);
     root.set_enum_field(TestEnum::Bar);
@@ -256,7 +256,7 @@
 fn test_stringify_union_list() {
     use crate::test_capnp::test_union;
     use capnp::struct_list;
     let mut message = message::Builder::new_default();
     let mut root: struct_list::Builder<'_, test_union::Owned> = message.initn_root(2);
     {
         let mut union0 = root.reborrow().get(0).get_union0();