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extern crate proc_macro;

#[macro_use]
mod macros;

mod from_sql_row;
mod query;

use proc_macro::TokenStream;
use proc_macro_hack::proc_macro_hack;
use syn::{parse_macro_input, DeriveInput};

#[proc_macro_hack]
pub fn query_static(input: TokenStream) -> TokenStream {
    let query = parse_macro_input!(input as query::QueryInput);

    let output = match query.convert_to_struct_static() {
        Ok(output) => output,
        Err(e) => e.to_compile_error(),
    };

    TokenStream::from(output)
}

#[proc_macro_hack]
pub fn query_dynamic(input: TokenStream) -> TokenStream {
    let query = parse_macro_input!(input as query::QueryInput);

    let output = match query.convert_to_struct_dynamic() {
        Ok(output) => output,
        Err(e) => e.to_compile_error(),
    };

    TokenStream::from(output)
}

#[proc_macro_derive(FromSqlRow, attributes(row))]
pub fn from_sql_row(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);
    let output = from_sql_row::derive(input);
    TokenStream::from(output)
}