sqlx_macros_oldapi/
lib.rs

1#![allow(clippy::large_enum_variant)]
2#![cfg_attr(
3    not(any(feature = "postgres", feature = "mysql", feature = "offline")),
4    allow(dead_code, unused_macros, unused_imports)
5)]
6#![cfg_attr(
7    any(sqlx_macros_unstable, procmacro2_semver_exempt),
8    feature(track_path, proc_macro_tracked_env)
9)]
10extern crate proc_macro;
11
12use proc_macro::TokenStream;
13
14use quote::quote;
15
16use syn::parse::{Parse, ParseStream};
17use syn::punctuated::Punctuated;
18use syn::{parse_macro_input, DeriveInput, ItemFn, LitStr, Meta, Token};
19
20type Error = Box<dyn std::error::Error>;
21
22type Result<T> = std::result::Result<T, Error>;
23
24mod common;
25mod database;
26mod derives;
27mod query;
28
29// The compiler gives misleading help messages about `#[cfg(test)]` when this is just named `test`.
30mod test_attr;
31
32#[cfg(feature = "migrate")]
33mod migrate;
34
35struct ArgsParser(Punctuated<Meta, Token![,]>);
36
37impl Parse for ArgsParser {
38    fn parse(input: ParseStream) -> syn::Result<Self> {
39        Ok(ArgsParser(Punctuated::<Meta, Token![,]>::parse_terminated(
40            input,
41        )?))
42    }
43}
44
45#[proc_macro]
46pub fn expand_query(input: TokenStream) -> TokenStream {
47    let input = syn::parse_macro_input!(input as query::QueryMacroInput);
48
49    match query::expand_input(input) {
50        Ok(ts) => ts.into(),
51        Err(e) => {
52            if let Some(parse_err) = e.downcast_ref::<syn::Error>() {
53                parse_err.to_compile_error().into()
54            } else {
55                let msg = e.to_string();
56                quote!(::std::compile_error!(#msg)).into()
57            }
58        }
59    }
60}
61
62#[proc_macro_derive(Encode, attributes(sqlx))]
63pub fn derive_encode(tokenstream: TokenStream) -> TokenStream {
64    let input = syn::parse_macro_input!(tokenstream as syn::DeriveInput);
65    match derives::expand_derive_encode(&input) {
66        Ok(ts) => ts.into(),
67        Err(e) => e.to_compile_error().into(),
68    }
69}
70
71#[proc_macro_derive(Decode, attributes(sqlx))]
72pub fn derive_decode(tokenstream: TokenStream) -> TokenStream {
73    let input = syn::parse_macro_input!(tokenstream as syn::DeriveInput);
74    match derives::expand_derive_decode(&input) {
75        Ok(ts) => ts.into(),
76        Err(e) => e.to_compile_error().into(),
77    }
78}
79
80#[proc_macro_derive(Type, attributes(sqlx))]
81pub fn derive_type(tokenstream: TokenStream) -> TokenStream {
82    let input = syn::parse_macro_input!(tokenstream as syn::DeriveInput);
83    match derives::expand_derive_type_encode_decode(&input) {
84        Ok(ts) => ts.into(),
85        Err(e) => e.to_compile_error().into(),
86    }
87}
88
89#[proc_macro_derive(FromRow, attributes(sqlx))]
90pub fn derive_from_row(input: TokenStream) -> TokenStream {
91    let input = syn::parse_macro_input!(input as syn::DeriveInput);
92
93    match derives::expand_derive_from_row(&input) {
94        Ok(ts) => ts.into(),
95        Err(e) => e.to_compile_error().into(),
96    }
97}
98
99#[cfg(feature = "migrate")]
100#[proc_macro]
101pub fn migrate(input: TokenStream) -> TokenStream {
102    use syn::LitStr;
103
104    let input = syn::parse_macro_input!(input as LitStr);
105    match migrate::expand_migrator_from_lit_dir(input) {
106        Ok(ts) => ts.into(),
107        Err(e) => {
108            if let Some(parse_err) = e.downcast_ref::<syn::Error>() {
109                parse_err.to_compile_error().into()
110            } else {
111                let msg = e.to_string();
112                quote!(::std::compile_error!(#msg)).into()
113            }
114        }
115    }
116}
117
118#[proc_macro_attribute]
119pub fn test(
120    args: proc_macro::TokenStream,
121    input: proc_macro::TokenStream,
122) -> proc_macro::TokenStream {
123    let args = parse_macro_input!(args as ArgsParser).0;
124    let input = parse_macro_input!(input as ItemFn);
125
126    test_attr::expand(args, input)
127}
sqlx_macros_oldapi/lib.rs

sqlx_macros_oldapi/
lib.rs
