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-rw-r--r--validator_derive/src/lib.rs110
1 files changed, 60 insertions, 50 deletions
diff --git a/validator_derive/src/lib.rs b/validator_derive/src/lib.rs
index f3796b4..6f74202 100644
--- a/validator_derive/src/lib.rs
+++ b/validator_derive/src/lib.rs
@@ -1,21 +1,11 @@
#![recursion_limit = "128"]
-
-#[macro_use]
-extern crate if_chain;
-#[macro_use]
-extern crate lazy_static;
extern crate proc_macro;
-extern crate proc_macro2;
-#[macro_use]
-extern crate quote;
-extern crate regex;
-#[macro_use]
-extern crate syn;
-extern crate validator;
-
-use proc_macro::TokenStream;
+
+use if_chain::if_chain;
+use quote::quote;
use quote::ToTokens;
use std::collections::HashMap;
+use syn::parse_quote;
use validator::Validator;
mod asserts;
@@ -29,7 +19,7 @@ use quoting::{quote_field_validation, quote_schema_validation, FieldQuoter};
use validation::*;
#[proc_macro_derive(Validate, attributes(validate))]
-pub fn derive_validation(input: TokenStream) -> TokenStream {
+pub fn derive_validation(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
impl_validate(&ast).into()
}
@@ -110,11 +100,12 @@ fn find_struct_validation(struct_attrs: &Vec<syn::Attribute>) -> Option<SchemaVa
}
if_chain! {
- if let Some(syn::Meta::List(syn::MetaList { ref nested, .. })) = attr.interpret_meta();
+ if let Ok(syn::Meta::List(syn::MetaList { ref nested, .. })) = attr.parse_meta();
if let syn::NestedMeta::Meta(ref item) = nested[0];
- if let &syn::Meta::List(syn::MetaList { ref ident, ref nested, .. }) = item;
+ if let &syn::Meta::List(syn::MetaList { ref path, ref nested, .. }) = item;
then {
+ let ident = path.get_ident().unwrap();
if ident != "schema" {
error("Only `schema` is allowed as validator on a struct")
}
@@ -127,9 +118,10 @@ fn find_struct_validation(struct_attrs: &Vec<syn::Attribute>) -> Option<SchemaVa
for arg in nested {
if_chain! {
if let syn::NestedMeta::Meta(ref item) = *arg;
- if let syn::Meta::NameValue(syn::MetaNameValue { ref ident, ref lit, .. }) = *item;
+ if let syn::Meta::NameValue(syn::MetaNameValue { ref path, ref lit, .. }) = *item;
then {
+ let ident = path.get_ident().unwrap();
match ident.to_string().as_ref() {
"function" => {
function = match lit_to_string(lit) {
@@ -251,8 +243,8 @@ fn find_validators_for_field(
has_validate = true;
}
- match attr.interpret_meta() {
- Some(syn::Meta::List(syn::MetaList { ref nested, .. })) => {
+ match attr.parse_meta() {
+ Ok(syn::Meta::List(syn::MetaList { ref nested, .. })) => {
let meta_items = nested.iter().collect();
// original name before serde rename
if attr.path == parse_quote!(serde) {
@@ -266,32 +258,43 @@ fn find_validators_for_field(
for meta_item in meta_items {
match *meta_item {
syn::NestedMeta::Meta(ref item) => match *item {
- // email, url, phone
- syn::Meta::Word(ref name) => match name.to_string().as_ref() {
- "email" => {
- assert_string_type("email", field_type);
- validators.push(FieldValidation::new(Validator::Email));
- }
- "url" => {
- assert_string_type("url", field_type);
- validators.push(FieldValidation::new(Validator::Url));
- }
- #[cfg(feature = "phone")]
- "phone" => {
- assert_string_type("phone", field_type);
- validators.push(FieldValidation::new(Validator::Phone));
- }
- #[cfg(feature = "card")]
- "credit_card" => {
- assert_string_type("credit_card", field_type);
- validators.push(FieldValidation::new(Validator::CreditCard));
+ // email, url, phone, credit_card, non_control_character
+ syn::Meta::Path(ref name) => {
+ match name.get_ident().unwrap().to_string().as_ref() {
+ "email" => {
+ assert_string_type("email", field_type);
+ validators.push(FieldValidation::new(Validator::Email));
+ }
+ "url" => {
+ assert_string_type("url", field_type);
+ validators.push(FieldValidation::new(Validator::Url));
+ }
+ #[cfg(feature = "phone")]
+ "phone" => {
+ assert_string_type("phone", field_type);
+ validators.push(FieldValidation::new(Validator::Phone));
+ }
+ #[cfg(feature = "card")]
+ "credit_card" => {
+ assert_string_type("credit_card", field_type);
+ validators
+ .push(FieldValidation::new(Validator::CreditCard));
+ }
+ #[cfg(feature = "unic")]
+ "non_control_character" => {
+ assert_string_type("non_control_character", field_type);
+ validators.push(FieldValidation::new(
+ Validator::NonControlCharacter,
+ ));
+ }
+ _ => panic!("Unexpected validator: {:?}", name.get_ident()),
}
- _ => panic!("Unexpected validator: {}", name),
- },
+ }
// custom, contains, must_match, regex
syn::Meta::NameValue(syn::MetaNameValue {
- ref ident, ref lit, ..
+ ref path, ref lit, ..
}) => {
+ let ident = path.get_ident().unwrap();
match ident.to_string().as_ref() {
"custom" => {
match lit_to_string(lit) {
@@ -324,8 +327,9 @@ fn find_validators_for_field(
};
}
// Validators with several args
- syn::Meta::List(syn::MetaList { ref ident, ref nested, .. }) => {
+ syn::Meta::List(syn::MetaList { ref path, ref nested, .. }) => {
let meta_items = nested.iter().cloned().collect();
+ let ident = path.get_ident().unwrap();
match ident.to_string().as_ref() {
"length" => {
assert_has_len(rust_ident.clone(), field_type);
@@ -341,7 +345,11 @@ fn find_validators_for_field(
&meta_items,
));
}
- "email" | "url" | "phone" | "credit_card" => {
+ "email"
+ | "url"
+ | "phone"
+ | "credit_card"
+ | "non_control_character" => {
validators.push(extract_argless_validation(
ident.to_string(),
rust_ident.clone(),
@@ -396,10 +404,11 @@ fn find_validators_for_field(
};
}
}
- Some(syn::Meta::Word(_)) => validators.push(FieldValidation::new(Validator::Nested)),
- _ => unreachable!(
- "Got something other than a list of attributes while checking field `{}`",
- field_ident
+ Ok(syn::Meta::Path(_)) => validators.push(FieldValidation::new(Validator::Nested)),
+ Ok(syn::Meta::NameValue(_)) => panic!("Unexpected name=value argument"),
+ Err(e) => unreachable!(
+ "Got something other than a list of attributes while checking field `{}`: {:?}",
+ field_ident, e
),
}
}
@@ -422,8 +431,9 @@ fn find_original_field_name(meta_items: &Vec<&syn::NestedMeta>) -> Option<String
for meta_item in meta_items {
match **meta_item {
syn::NestedMeta::Meta(ref item) => match *item {
- syn::Meta::Word(_) => continue,
- syn::Meta::NameValue(syn::MetaNameValue { ref ident, ref lit, .. }) => {
+ syn::Meta::Path(_) => continue,
+ syn::Meta::NameValue(syn::MetaNameValue { ref path, ref lit, .. }) => {
+ let ident = path.get_ident().unwrap();
if ident == "rename" {
original_name = Some(lit_to_string(lit).unwrap());
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-02 23:00:28 +0000