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#![recursion_limit="128"]
#[macro_use]
extern crate quote;
extern crate syn;
#[macro_use]
extern crate quick_error;
#[macro_use]
extern crate nom;
extern crate serde;
extern crate serde_json;
extern crate serde_derive_internals;
extern crate chrono;
pub mod elastic_type;
pub mod date_format;
fn get_elastic_meta_items(attr: &syn::Attribute) -> Option<&[syn::NestedMetaItem]> {
match attr.value {
syn::MetaItem::List(ref name, ref items) if name == &"elastic" => Some(items),
_ => None,
}
}
fn get_elastic_attr_name_value<'a>(name: &str, item: &'a syn::MacroInput) -> Option<&'a syn::Lit> {
for meta_items in item.attrs.iter().filter_map(get_elastic_meta_items) {
for meta_item in meta_items {
match *meta_item {
syn::NestedMetaItem::MetaItem(syn::MetaItem::NameValue(ref key, ref lit))
if key == name => {
return Some(lit);
}
_ => (),
}
}
}
None
}
fn get_ident_from_lit(lit: &syn::Lit) -> Result<syn::Ident, &'static str> {
get_str_from_lit(lit).map(|s| syn::Ident::from(s))
}
fn get_str_from_lit<'a>(lit: &'a syn::Lit) -> Result<&'a str, &'static str> {
match *lit {
syn::Lit::Str(ref s, _) => Ok(s.as_str()),
_ => {
return Err("Unable to get str from lit");
}
}
}