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use core::ops::Deref;
use xmltree::Element;
use crate::types::Parse;
#[cfg(feature = "unproven")]
use crate::elementext::ElementExt;
#[cfg(feature = "unproven")]
use crate::encode::Encode;
use crate::svd::{dimelement::DimElement, registerinfo::RegisterInfo};
use anyhow::Result;
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
#[derive(Clone, Debug, PartialEq)]
pub enum Register {
Single(RegisterInfo),
Array(RegisterInfo, DimElement),
}
impl Deref for Register {
type Target = RegisterInfo;
fn deref(&self) -> &RegisterInfo {
match self {
Register::Single(info) => info,
Register::Array(info, _) => info,
}
}
}
impl Parse for Register {
type Object = Register;
type Error = anyhow::Error;
fn parse(tree: &Element) -> Result<Register> {
assert_eq!(tree.name, "register");
let info = RegisterInfo::parse(tree)?;
if tree.get_child("dimIncrement").is_some() {
let array_info = DimElement::parse(tree)?;
assert!(info.name.contains("%s"));
if let Some(indices) = &array_info.dim_index {
assert_eq!(array_info.dim as usize, indices.len())
}
Ok(Register::Array(info, array_info))
} else {
Ok(Register::Single(info))
}
}
}
#[cfg(feature = "unproven")]
impl Encode for Register {
type Error = anyhow::Error;
fn encode(&self) -> Result<Element> {
match self {
Register::Single(info) => info.encode(),
Register::Array(info, array_info) => {
let base = info.encode()?;
base.merge(&array_info.encode()?);
Ok(base)
}
}
}
}