79 lines
2.0 KiB
Rust
79 lines
2.0 KiB
Rust
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use darling::FromMeta;
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use proc_macro2::TokenStream;
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use quote::quote;
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#[derive(FromMeta, Default, Clone)]
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pub struct Validators {
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#[darling(default)]
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multiple_of: Option<f64>,
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#[darling(default)]
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maximum: Option<f64>,
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#[darling(default)]
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minimum: Option<f64>,
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#[darling(default)]
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max_length: Option<usize>,
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#[darling(default)]
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min_length: Option<usize>,
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#[darling(default)]
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max_items: Option<usize>,
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#[darling(default)]
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min_items: Option<usize>,
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#[darling(default, multiple)]
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custom: Vec<String>,
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}
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impl Validators {
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pub fn create_validators(
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&self,
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crate_name: &TokenStream,
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value: TokenStream,
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map_err: TokenStream,
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) -> TokenStream {
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let mut codes = Vec::new();
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if let Some(n) = &self.multiple_of {
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codes.push(quote! {
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#crate_name::validators::multiple_of(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.maximum {
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codes.push(quote! {
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#crate_name::validators::maximum(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.minimum {
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codes.push(quote! {
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#crate_name::validators::minimum(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.max_length {
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codes.push(quote! {
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#crate_name::validators::max_length(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.min_length {
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codes.push(quote! {
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#crate_name::validators::min_length(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.max_items {
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codes.push(quote! {
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#crate_name::validators::max_items(#value, #n) #map_err
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});
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}
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if let Some(n) = &self.min_items {
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codes.push(quote! {
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#crate_name::validators::min_items(#value, #n) #map_err
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});
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}
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quote!(#(#codes;)*)
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}
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}
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