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#![cfg_attr(feature = "external_doc", feature(external_doc))] #![cfg_attr(feature = "external_doc", doc(include = "../README.md"))] mod error; #[macro_use] mod utils; mod readable; mod readable_impl; mod reader; mod writable; mod writable_impl; mod writer; mod context; mod endianness; mod varint; mod circular_buffer; #[cfg(feature = "chrono")] mod ext_chrono; #[cfg(feature = "smallvec")] mod ext_smallvec; #[doc(hidden)] pub mod private; #[cfg(feature = "speedy-derive")] pub use speedy_derive::{Readable, Writable}; pub use crate::readable::Readable; pub use crate::reader::Reader; pub use crate::writable::Writable; pub use crate::writer::Writer; pub use crate::endianness::Endianness; pub use crate::context::{BigEndian, Context, LittleEndian}; pub use crate::error::{Error, IsEof}; #[cfg(test)] mod tests { use std::io; use std::borrow::Cow; use super::{ Reader, Readable, Writer, Writable, Context, Endianness }; #[derive(PartialEq, Debug)] struct SimpleStruct { a: u8, b: u8, c: u8 } impl< C: Context > Writable< C > for SimpleStruct { fn write_to< T: ?Sized + Writer< C > >( &self, writer: &mut T ) -> Result< (), C::Error > { writer.write_value( &self.a )?; writer.write_value( &self.b )?; writer.write_value( &self.c )?; Ok(()) } } impl< 'a, C: Context > Readable< 'a, C > for SimpleStruct { fn read_from< R: Reader< 'a, C > >( reader: &mut R ) -> Result< Self, C::Error > { let a = reader.read_u8()?; let b = reader.read_u8()?; let c = reader.read_u8()?; Ok( SimpleStruct { a, b, c } ) } } #[test] fn simple_write_to_vec() { let value = SimpleStruct { a: 1, b: 2, c: 3 }; let data = value.write_to_vec_with_ctx( Endianness::NATIVE ).unwrap(); assert_eq!( data, vec![ 1, 2, 3 ] ); } #[test] fn simple_read_from_stream_unbuffered() { let data = vec![ 1, 2, 3 ]; let cursor = io::Cursor::new( data ); let value = SimpleStruct::read_from_stream_unbuffered_with_ctx( Endianness::NATIVE, cursor ).unwrap(); assert_eq!( value, SimpleStruct { a: 1, b: 2, c: 3 } ); } #[test] fn simple_read_from_stream_buffered() { let data = vec![ 1, 2, 3 ]; let cursor = io::Cursor::new( data ); let value = SimpleStruct::read_from_stream_buffered_with_ctx( Endianness::NATIVE, cursor ).unwrap(); assert_eq!( value, SimpleStruct { a: 1, b: 2, c: 3 } ); } #[test] fn simple_read_from_buffer() { let data = vec![ 1, 2, 3 ]; let value = SimpleStruct::read_from_buffer_with_ctx( Endianness::NATIVE, &data ).unwrap(); assert_eq!( value, SimpleStruct { a: 1, b: 2, c: 3 } ); } #[test] fn simple_read_bytes_from_buffer_owned() { let data = vec![ 2, 0, 0, 0, 12, 34 ]; let value: Cow< [u8] > = Readable::read_from_buffer_owned_with_ctx( Endianness::LittleEndian, &data ).unwrap(); assert_eq!( &*value, &[12, 34] ); assert_ne!( value.as_ptr(), data[ 4.. ].as_ptr() ); } #[test] fn simple_read_bytes_from_buffer_borrowed() { let data = vec![ 2, 0, 0, 0, 12, 34 ]; let value: Cow< [u8] > = Readable::read_from_buffer_with_ctx( Endianness::LittleEndian, &data ).unwrap(); assert_eq!( &*value, &[12, 34] ); assert_eq!( value.as_ptr(), data[ 4.. ].as_ptr() ); } #[test] fn read_from_buffer_owned_with_default_ctx() { let data = vec![ 2, 0 ]; let value = u16::read_from_buffer_owned( &data ).unwrap(); assert_eq!( value, 2 ); } #[test] fn read_from_buffer_borrowed_with_default_ctx() { let data = vec![ 2, 0 ]; let value = u16::read_from_buffer( &data ).unwrap(); assert_eq!( value, 2 ); } #[test] fn read_from_stream_unbuffered_with_default_ctx() { let data = vec![ 2, 0 ]; let value = u16::read_from_stream_unbuffered( io::Cursor::new( data ) ).unwrap(); assert_eq!( value, 2 ); } #[test] fn read_from_stream_buffered_with_default_ctx() { let data = vec![ 2, 0 ]; let value = u16::read_from_stream_buffered( io::Cursor::new( data ) ).unwrap(); assert_eq!( value, 2 ); } #[test] fn write_to_buffer_with_default_ctx() { let mut buffer = [0, 0]; 2_u16.write_to_buffer( &mut buffer ).unwrap(); assert_eq!( buffer, [2, 0] ); } #[test] fn write_to_vec_with_default_ctx() { let buffer = 2_u16.write_to_vec().unwrap(); assert_eq!( buffer, [2, 0] ); } #[test] fn write_to_stream_with_default_ctx() { let mut buffer = [0, 0]; 2_u16.write_to_stream( io::Cursor::new( &mut buffer[..] ) ).unwrap(); assert_eq!( buffer, [2, 0] ); } #[test] fn read_write_u8_vec() { let original: Vec< u8 > = vec![ 1, 2, 3 ]; let serialized = original.write_to_vec_with_ctx( Endianness::NATIVE ).unwrap(); let deserialized: Vec< u8 > = Vec::< u8 >::read_from_buffer_with_ctx( Endianness::NATIVE, &serialized ).unwrap(); assert_eq!( original, deserialized ); } #[test] fn read_write_u64_vec() { let original: Vec< u64 > = vec![ 1, 2, 3 ]; let serialized = original.write_to_vec_with_ctx( Endianness::NATIVE ).unwrap(); let deserialized: Vec< u64 > = Vec::< u64 >::read_from_buffer_with_ctx( Endianness::NATIVE, &serialized ).unwrap(); assert_eq!( original, deserialized ); } #[test] fn read_write_string() { let original: String = "Hello world!".to_owned(); let serialized = original.write_to_vec_with_ctx( Endianness::NATIVE ).unwrap(); let deserialized: String = String::read_from_buffer_with_ctx( Endianness::NATIVE, &serialized ).unwrap(); assert_eq!( original, deserialized ); } #[test] fn read_big_vector_of_vectors_from_stream_buffered() { const fn hash32( x: u32 ) -> u32 { let mut x = x.wrapping_mul( 0xa4d94a4f ); let a = x >> 16; let b = x >> 30; x ^= a >> b; x.wrapping_mul( 0xa4d94a4f ) } struct TestStream { buffer: Vec< u8 >, position: usize } impl io::Read for TestStream { fn read( &mut self, output: &mut [u8] ) -> Result< usize, io::Error > { if self.position >= self.buffer.len() || output.len() == 0 { return Ok(0); } let random = hash32( self.position as u32 + output.len() as u32 ) as usize; let length = std::cmp::min( random % output.len() + 1, self.buffer.len() - self.position ); output[ ..length ].copy_from_slice( &self.buffer[ self.position..self.position + length ] ); self.position += length; Ok( length ) } } let mut original: Vec< Vec< u8 > > = Vec::new(); for nth in 0..10000 { let mut buffer = Vec::new(); let random = hash32( nth as u32 ); for byte in 0..(random % 128) as u8 { buffer.push( byte ); } original.push( buffer ); } let serialized = original.write_to_vec().unwrap(); let stream = TestStream { buffer: serialized, position: 0 }; let deserialized: Vec< Vec< u8 > > = Readable::read_from_stream_buffered( stream ).unwrap(); assert_eq!( original, deserialized ); } }