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|
use yaxpeax_arch::AddressBase;
mod reader;
#[test]
fn test_u16() {
for l in 0..100 {
for r in 0..=core::u16::MAX {
assert_eq!(r.wrapping_offset(l.diff(&r).expect("u16 addresses always have valid diffs")), l);
}
}
}
#[test]
#[cfg(std)]
fn generic_error_can_bail() {
use yaxpeax_arch::{Arch, Decoder, Reader};
#[allow(dead_code)]
fn decode<A: Arch, U: Into<impl Reader<A::Address, A::Word>>>(data: U, decoder: &A::Decoder) -> anyhow::Result<()> {
let mut reader = data.into();
decoder.decode(&mut reader)?;
Ok(())
}
}
#[test]
#[cfg(std)]
fn error_can_bail() {
use yaxpeax_arch::{Arch, AddressDiff, Decoder, Reader, LengthedInstruction, Instruction, StandardDecodeError, U8Reader};
struct TestIsa {}
#[derive(Debug, Default)]
struct TestInst {}
impl Arch for TestIsa {
type Word = u8;
type Address = u64;
type Instruction = TestInst;
type Decoder = TestIsaDecoder;
type DecodeError = StandardDecodeError;
type Operand = ();
}
impl Instruction for TestInst {
fn well_defined(&self) -> bool { true }
}
impl LengthedInstruction for TestInst {
type Unit = AddressDiff<u64>;
fn len(&self) -> Self::Unit { AddressDiff::from_const(1) }
fn min_size() -> Self::Unit { AddressDiff::from_const(1) }
}
struct TestIsaDecoder {}
impl Default for TestIsaDecoder {
fn default() -> Self {
TestIsaDecoder {}
}
}
impl Decoder<TestIsa> for TestIsaDecoder {
fn decode_into<T: Reader<u64, u8>>(&self, _inst: &mut TestInst, _words: &mut T) -> Result<(), StandardDecodeError> {
Err(StandardDecodeError::ExhaustedInput)
}
}
#[derive(Debug, PartialEq, thiserror::Error)]
pub enum Error {
#[error("decode error")]
TestDecode(#[from] StandardDecodeError),
}
fn exercise_eq() -> Result<(), Error> {
let mut reader = U8Reader::new(&[]);
TestIsaDecoder::default().decode(&mut reader)?;
Ok(())
}
assert_eq!(exercise_eq(), Err(Error::TestDecode(StandardDecodeError::ExhaustedInput)));
}
#[test]
fn example_arch_impl() {
use yaxpeax_arch::{Arch, AddressDiff, Decoder, Reader, LengthedInstruction, Instruction, StandardDecodeError, U8Reader};
struct TestIsa {}
#[derive(Debug, Default)]
struct TestInst {}
impl Arch for TestIsa {
type Word = u8;
type Address = u64;
type Instruction = TestInst;
type Decoder = TestIsaDecoder;
type DecodeError = StandardDecodeError;
type Operand = ();
}
impl Instruction for TestInst {
fn well_defined(&self) -> bool { true }
}
impl LengthedInstruction for TestInst {
type Unit = AddressDiff<u64>;
fn len(&self) -> Self::Unit { AddressDiff::from_const(1) }
fn min_size() -> Self::Unit { AddressDiff::from_const(1) }
}
struct TestIsaDecoder {}
impl Default for TestIsaDecoder {
fn default() -> Self {
TestIsaDecoder {}
}
}
impl Decoder<TestIsa> for TestIsaDecoder {
fn decode_into<T: Reader<u64, u8>>(&self, _inst: &mut TestInst, _words: &mut T) -> Result<(), StandardDecodeError> {
Err(StandardDecodeError::ExhaustedInput)
}
}
fn exercise_eq() -> Result<(), StandardDecodeError> {
let mut reader = U8Reader::new(&[]);
TestIsaDecoder::default().decode(&mut reader)?;
Ok(())
}
assert_eq!(exercise_eq(), Err(StandardDecodeError::ExhaustedInput));
}
|
