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Mar 28, 2019
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bytearray: convert to new args style #757

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228 changes: 101 additions & 127 deletions vm/src/obj/objbytearray.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,12 +6,12 @@ use std::ops::{Deref, DerefMut};

use num_traits::ToPrimitive;

use crate::function::{OptionalArg, PyFuncArgs};
use crate::pyobject::{PyContext, PyObjectRef, PyRef, PyResult, PyValue, TypeProtocol};
use crate::function::OptionalArg;
use crate::pyobject::{PyContext, PyObjectRef, PyRef, PyResult, PyValue};
use crate::vm::VirtualMachine;

use super::objint;
use super::objtype::{self, PyClassRef};
use super::objtype::PyClassRef;

#[derive(Debug)]
pub struct PyByteArray {
Expand Down Expand Up @@ -63,22 +63,22 @@ pub fn init(context: &PyContext) {

extend_class!(context, bytearray_type, {
"__doc__" => context.new_str(bytearray_doc.to_string()),
"__eq__" => context.new_rustfunc(bytearray_eq),
"__len__" => context.new_rustfunc(bytesarray_len),
"__new__" => context.new_rustfunc(bytearray_new),
"__repr__" => context.new_rustfunc(bytearray_repr),
"clear" => context.new_rustfunc(bytearray_clear),
"isalnum" => context.new_rustfunc(bytearray_isalnum),
"isalpha" => context.new_rustfunc(bytearray_isalpha),
"isascii" => context.new_rustfunc(bytearray_isascii),
"isdigit" => context.new_rustfunc(bytearray_isdigit),
"islower" => context.new_rustfunc(bytearray_islower),
"isspace" => context.new_rustfunc(bytearray_isspace),
"istitle" =>context.new_rustfunc(bytearray_istitle),
"isupper" => context.new_rustfunc(bytearray_isupper),
"lower" => context.new_rustfunc(bytearray_lower),
"pop" => context.new_rustfunc(bytearray_pop),
"upper" => context.new_rustfunc(bytearray_upper)
"__eq__" => context.new_rustfunc(PyByteArrayRef::eq),
"__len__" => context.new_rustfunc(PyByteArrayRef::len),
"__repr__" => context.new_rustfunc(PyByteArrayRef::repr),
"clear" => context.new_rustfunc(PyByteArrayRef::clear),
"isalnum" => context.new_rustfunc(PyByteArrayRef::isalnum),
"isalpha" => context.new_rustfunc(PyByteArrayRef::isalpha),
"isascii" => context.new_rustfunc(PyByteArrayRef::isascii),
"isdigit" => context.new_rustfunc(PyByteArrayRef::isdigit),
"islower" => context.new_rustfunc(PyByteArrayRef::islower),
"isspace" => context.new_rustfunc(PyByteArrayRef::isspace),
"istitle" =>context.new_rustfunc(PyByteArrayRef::istitle),
"isupper" => context.new_rustfunc(PyByteArrayRef::isupper),
"lower" => context.new_rustfunc(PyByteArrayRef::lower),
"pop" => context.new_rustfunc(PyByteArrayRef::pop),
"upper" => context.new_rustfunc(PyByteArrayRef::upper)
});
}

Expand Down Expand Up @@ -107,89 +107,69 @@ fn bytearray_new(
PyByteArray::new(value).into_ref_with_type(vm, cls.clone())
}

fn bytesarray_len(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(a, Some(vm.ctx.bytearray_type()))]);

let byte_vec = get_value(a).to_vec();
Ok(vm.ctx.new_int(byte_vec.len()))
}

fn bytearray_eq(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(
vm,
args,
required = [(a, Some(vm.ctx.bytearray_type())), (b, None)]
);
impl PyByteArrayRef {
fn len(self, _vm: &VirtualMachine) -> usize {
self.value.borrow().len()
}

let result = if objtype::isinstance(b, &vm.ctx.bytearray_type()) {
get_value(a).to_vec() == get_value(b).to_vec()
} else {
false
};
Ok(vm.ctx.new_bool(result))
}
fn eq(self, other: PyObjectRef, vm: &VirtualMachine) -> PyObjectRef {
if let Ok(other) = other.downcast::<PyByteArray>() {
vm.ctx
.new_bool(self.value.borrow().as_slice() == other.value.borrow().as_slice())
} else {
vm.ctx.not_implemented()
}
}

fn bytearray_isalnum(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_alphanumeric())))
}
fn isalnum(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_alphanumeric())
}

fn bytearray_isalpha(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_alphabetic())))
}
fn isalpha(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_alphabetic())
}

fn bytearray_isascii(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_ascii())))
}
fn isascii(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_ascii())
}

fn bytearray_isdigit(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_digit(10))))
}
fn isdigit(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_digit(10))
}

fn bytearray_islower(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(
fn islower(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty()
&& bytes
.iter()
.filter(|x| !char::from(**x).is_whitespace())
.all(|x| char::from(*x).is_lowercase()),
))
}
.all(|x| char::from(*x).is_lowercase())
}

fn bytearray_isspace(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_whitespace())))
}
fn isspace(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty() && bytes.iter().all(|x| char::from(*x).is_whitespace())
}

fn bytearray_isupper(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
Ok(vm.new_bool(
fn isupper(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
!bytes.is_empty()
&& bytes
.iter()
.filter(|x| !char::from(**x).is_whitespace())
.all(|x| char::from(*x).is_uppercase()),
))
}
.all(|x| char::from(*x).is_uppercase())
}

fn bytearray_istitle(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
let bytes = get_value(zelf);
fn istitle(self, _vm: &VirtualMachine) -> bool {
let bytes = self.value.borrow();
if bytes.is_empty() {
return false;
}

if bytes.is_empty() {
Ok(vm.new_bool(false))
} else {
let mut iter = bytes.iter().peekable();
let mut prev_cased = false;

Expand All @@ -198,21 +178,52 @@ fn bytearray_istitle(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
let next = if let Some(k) = iter.peek() {
char::from(**k)
} else if current.is_uppercase() {
return Ok(vm.new_bool(!prev_cased));
return !prev_cased;
} else {
return Ok(vm.new_bool(prev_cased));
return prev_cased;
};

if (is_cased(current) && next.is_uppercase() && !prev_cased)
|| (!is_cased(current) && next.is_lowercase())
{
return Ok(vm.new_bool(false));
return false;
}

prev_cased = is_cased(current);
}

Ok(vm.new_bool(true))
true
}

fn repr(self, _vm: &VirtualMachine) -> String {
let bytes = self.value.borrow();
let data = String::from_utf8(bytes.to_vec()).unwrap_or_else(|_| to_hex(&bytes.to_vec()));
format!("bytearray(b'{}')", data)
}

fn clear(self, _vm: &VirtualMachine) {
self.value.borrow_mut().clear();
}

fn pop(self, vm: &VirtualMachine) -> PyResult<u8> {
let mut bytes = self.value.borrow_mut();
bytes
.pop()
.ok_or_else(|| vm.new_index_error("pop from empty bytearray".to_string()))
}

fn lower(self, _vm: &VirtualMachine) -> PyByteArray {
let bytes = self.value.borrow().clone().to_ascii_lowercase();
PyByteArray {
value: RefCell::new(bytes),
}
}

fn upper(self, _vm: &VirtualMachine) -> PyByteArray {
let bytes = self.value.borrow().clone().to_ascii_uppercase();
PyByteArray {
value: RefCell::new(bytes),
}
}
}

Expand All @@ -222,7 +233,7 @@ fn is_cased(c: char) -> bool {
}

/*
fn bytearray_getitem(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
fn getitem(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(
vm,
args,
Expand All @@ -239,56 +250,19 @@ fn set_value(obj: &PyObjectRef, value: Vec<u8>) {
*/

/// Return a lowercase hex representation of a bytearray
fn bytearray_to_hex(bytearray: &[u8]) -> String {
fn to_hex(bytearray: &[u8]) -> String {
bytearray.iter().fold(String::new(), |mut s, b| {
let _ = write!(s, "\\x{:02x}", b);
s
})
}

fn bytearray_repr(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(obj, Some(vm.ctx.bytearray_type()))]);
let value = get_value(obj);
let data =
String::from_utf8(value.to_vec()).unwrap_or_else(|_| bytearray_to_hex(&value.to_vec()));
Ok(vm.new_str(format!("bytearray(b'{}')", data)))
}

fn bytearray_clear(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(zelf, Some(vm.ctx.bytearray_type()))]);
get_mut_value(zelf).clear();
Ok(vm.get_none())
}

fn bytearray_pop(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(obj, Some(vm.ctx.bytearray_type()))]);
let mut value = get_mut_value(obj);

if let Some(i) = value.pop() {
Ok(vm.ctx.new_int(i))
} else {
Err(vm.new_index_error("pop from empty bytearray".to_string()))
}
}

fn bytearray_lower(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(obj, Some(vm.ctx.bytearray_type()))]);
let value = get_value(obj).to_vec().to_ascii_lowercase();
Ok(vm.ctx.new_bytearray(value))
}

fn bytearray_upper(vm: &VirtualMachine, args: PyFuncArgs) -> PyResult {
arg_check!(vm, args, required = [(obj, Some(vm.ctx.bytearray_type()))]);
let value = get_value(obj).to_vec().to_ascii_uppercase();
Ok(vm.ctx.new_bytearray(value))
}

#[cfg(test)]
mod tests {
use super::*;

#[test]
fn bytearray_to_hex_formatting() {
assert_eq!(&bytearray_to_hex(&[11u8, 222u8]), "\\x0b\\xde");
assert_eq!(&to_hex(&[11u8, 222u8]), "\\x0b\\xde");
}
}