extern crate failure;
#[macro_use]
extern crate failure_derive;
#[macro_use]
extern crate quote;
extern crate syn;
mod types;
mod processing;
mod parsing;
pub use types::{SupportedArgumentType, SupportedCopyTy, SupportedRetType};
pub use processing::{extract_func_info, get_argument_types, get_ret_type, JsFnInfo,
TransformedRustIdent};
pub use parsing::{transform_mac_to_items, transform_macro_input_to_items};
#[derive(Debug, Fail)]
pub enum MacroError {
#[fail(display = "expected function, found invalid item '{:?}'", kind)]
InvalidItemKind { kind: syn::ItemKind },
#[fail(display = "expected regular non-self function parameter, found '{:?}'", arg)]
InvalidArgument { arg: syn::FnArg },
#[fail(display = "expected one of the supported argument types, found '{:?}", ty)]
UnhandledArgumentType { ty: syn::Ty },
#[fail(display = "expected one of the supported return types, found '{:?}", ty)]
UnhandledRetType { ty: syn::Ty },
#[fail(display = "expected macro to contain a single delimited token tree, found \
multiple: {:?}",
tokens)]
UnexpectedMultiTokenMacro { tokens: Vec<syn::TokenTree> },
#[fail(display = "expected multiple tokens in js_fn! macro invocation, found single \
token: '{:?}'",
token)]
UnexpectedSingleToken { token: syn::Token },
#[fail(display = "expected all complete `fn a(..) => ..;` or `fn a(..) {{ .. }}` \
inside js_fn! macro, found incomplete tokens left: {:?}",
tokens)]
UnexpectedEndOfMacroInvocation { tokens: quote::Tokens },
#[fail(display = "failed to parse processed macro invocation: {:?}", err_msg)]
UnexpectedReparseFailure { err_msg: String },
}