parse derive macro

parse_gen/tests/test.rs

@@ -0,0 +1,37 @@
+use bitstream_reader::{BitBuffer, BitStream, LittleEndian};
+
+use tf_demo_parse_derive::Parse;
+use tf_demo_parser::Parse;
+use tf_demo_parser::ParserState;
+
+#[derive(Parse, PartialEq, Debug)]
+struct TestStruct {
+    foo: u8,
+    str: String,
+    #[size = 2]
+    truncated: String,
+    bar: u16,
+    float: f32,
+    #[size = 3]
+    asd: u8,
+}
+
+#[test]
+fn test_read_struct() {
+    let float: [u8; 4] = 12.5f32.to_bits().to_le_bytes();
+    let bytes = &[
+        12, 'h' as u8, 'e' as u8, 'l' as u8, 'l' as u8, 'o' as u8, 0, 'f' as u8,
+        'o' as u8, 'o' as u8, 0, float[0], float[1], float[2], float[3], 0b0101_0101
+    ];
+    let buffer = BitBuffer::new(bytes, LittleEndian);
+    let mut stream = BitStream::new(buffer, None, None);
+    let state = ParserState::new(&stream);
+    assert_eq!(TestStruct {
+        foo: 12,
+        str: "hello".to_owned(),
+        truncated: "fo".to_owned(),
+        bar: 'o' as u16,
+        float: 12.5,
+        asd: 0b101,
+    }, TestStruct::parse(&mut stream, &state).unwrap());
+}