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Diffstat (limited to 'vendor/writeable/examples/writeable_message.rs')
| -rw-r--r-- | vendor/writeable/examples/writeable_message.rs | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/vendor/writeable/examples/writeable_message.rs b/vendor/writeable/examples/writeable_message.rs deleted file mode 100644 index ca7c773d..00000000 --- a/vendor/writeable/examples/writeable_message.rs +++ /dev/null @@ -1,61 +0,0 @@ -// This file is part of ICU4X. For terms of use, please see the file -// called LICENSE at the top level of the ICU4X source tree -// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ). - -// This example illustrates a very simple type implementing Writeable. - -#![no_main] // https://github.com/unicode-org/icu4x/issues/395 -icu_benchmark_macros::instrument!(); - -use std::fmt; -use writeable::*; - -struct WriteableMessage<W: Writeable>(W); - -const GREETING: Part = Part { - category: "meaning", - value: "greeting", -}; - -const EMOJI: Part = Part { - category: "meaning", - value: "emoji", -}; - -impl<V: Writeable> Writeable for WriteableMessage<V> { - fn write_to_parts<W: PartsWrite + ?Sized>(&self, sink: &mut W) -> fmt::Result { - use fmt::Write; - sink.with_part(GREETING, |g| { - g.write_str("Hello")?; - g.write_str(" ")?; - self.0.write_to(g) - })?; - sink.write_char(' ')?; - sink.with_part(EMOJI, |e| e.write_char('😅')) - } - - fn writeable_length_hint(&self) -> LengthHint { - LengthHint::exact(11) + self.0.writeable_length_hint() - } -} - -impl<V: Writeable> fmt::Display for WriteableMessage<V> { - #[inline] - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { - self.write_to(f) - } -} - -fn main() { - let (string, parts) = - writeable::_internal::writeable_to_parts_for_test(&WriteableMessage("world")); - - assert_eq!(string, "Hello world 😅"); - - // Print the greeting only - let (start, end, _) = parts - .into_iter() - .find(|(_, _, part)| part == &GREETING) - .unwrap(); - println!("{}", &string[start..end]); -} |
