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use Formatter::debug_struct for packet debug impl
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jake 2022-08-02 21:31:29 -06:00
parent 3cf9cf5392
commit 2996b176a7
1 changed files with 46 additions and 42 deletions
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88
psopacket/src/lib.rs
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@ -205,55 +205,59 @@ fn generate_psopacket_impl(pkt_cmd: u16, name: syn::Ident, attrs: &Vec<AttrType>
}
fn generate_debug_impl(name: syn::Ident, attrs: &Vec<AttrType>) -> proc_macro2::TokenStream {
let mut dbg_write = Vec::new();
for attr in attrs {
let element = match attr {
AttrType::Value(ty, name, meta) => {
let ident_str = name.to_string();
let type_str = ty.path.segments[0].ident.to_string();
match meta {
AttrMeta::NoDebug => quote! {
write!(f, " {} {}: [...]\n", #ident_str, #type_str)?;
},
_ => quote! {
write!(f, " {} {}: {:?}\n", #ident_str, #type_str, self.#name)?;
let dbg_write = attrs
.iter()
.map(|attr| {
match attr {
AttrType::Value(ty, name, meta) => {
let ident_str = name.to_string();
let type_str = ty.path.segments[0].ident.to_string();
match meta {
AttrMeta::NoDebug => quote! {
.field(&format!("{} [{}]", #ident_str, #type_str), &format_args!("[...]"))
},
_ => quote! {
.field(&format!("{} [{}]", #ident_str, #type_str), &self.#name)
}
}
},
AttrType::Array(ty, name, len, meta) => {
let ident_str = name.to_string();
let type_str = ty.path.segments[0].ident.to_string();
match meta {
AttrMeta::Utf8 => quote! {
.field(&format!("{} [utf8; {}]", #ident_str, #len),
match std::str::from_utf8(&self.#name) {
Ok(ref s) => s,
Err(_) => &self.#name
})
},
AttrMeta::Utf16 => quote! {
.field(&format!("{} [utf16; {}]", #ident_str, #len),
match std::str::from_utf16(&self.#name) {
Ok(ref s) => s,
Err(_) => &self.#name
})
},
AttrMeta::NoDebug => quote! {
.field(&format!("{} [{}; {}]", #ident_str, #type_str, #len), &format_args!("[...]"))
},
_ => quote! {
.field(&format!("{} [{}; {}]", #ident_str, #type_str, #len), &format_args!("{:?}", &self.#name))
}
}
}
},
AttrType::Array(ty, name, len, meta) => {
let ident_str = name.to_string();
let type_str = ty.path.segments[0].ident.to_string();
match meta {
AttrMeta::Utf8 => quote! {
match std::str::from_utf8(&self.#name) {
Ok(v) => write!(f, " {} [utf8; {}]: {:?}\n", #ident_str, #len, v)?,
Err(_) => write!(f, " {} [{}; {}]: {:?}\n", #ident_str, #type_str, #len, self.#name.to_vec())?,
};
},
AttrMeta::Utf16 => quote! {
match String::from_utf16(&self.#name) {
Ok(v) => write!(f, " {} [utf16; {}]: {:?}\n", #ident_str, #len, v)?,
Err(_) => write!(f, " {} [{}; {}]: {:?}\n", #ident_str, #type_str, #len, self.#name.to_vec())?,
};
},
AttrMeta::NoDebug => quote! {
write!(f, " {} [{}; {}]: [...]\n", #ident_str, #type_str, #len)?;
},
_ => quote! {
write!(f, " {} [{}; {}]: {:?}\n", #ident_str, #type_str, #len, self.#name.to_vec())?;
},
}
}
};
dbg_write.push(element);
}
})
.collect::<Vec<_>>();
let name_str = name.to_string();
quote! {
impl std::fmt::Debug for #name {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{} {{\n", #name_str)?;
#(#dbg_write)*
write!(f, "}}")
f.debug_struct(#name_str)
#(#dbg_write)*
.finish()
}
}
}