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#![allow(clippy::cognitive_complexity)] #![forbid(unsafe_code)] extern crate proc_macro; mod args; mod r#enum; mod input_object; mod interface; mod merged_object; mod merged_subscription; mod object; mod output_type; mod scalar; mod simple_object; mod subscription; mod union; mod utils; use crate::utils::parse_derive; use proc_macro::TokenStream; use syn::parse_macro_input; use syn::{AttributeArgs, ItemImpl}; #[proc_macro_attribute] #[allow(non_snake_case)] pub fn GQLObject(args: TokenStream, input: TokenStream) -> TokenStream { let object_args = match args::Object::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; let mut item_impl = parse_macro_input!(input as ItemImpl); match object::generate(&object_args, &mut item_impl) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLSimpleObject, attributes(field, graphql))] pub fn derive_simple_object(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let object_args = match args::Object::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; match simple_object::generate(&object_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLEnum, attributes(item, graphql))] pub fn derive_enum(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let enum_args = match args::Enum::parse(parse_macro_input!(args as AttributeArgs)) { Ok(enum_args) => enum_args, Err(err) => return err.to_compile_error().into(), }; match r#enum::generate(&enum_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLInputObject, attributes(field, graphql))] pub fn derive_input_object(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let object_args = match args::InputObject::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; match input_object::generate(&object_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLInterface, attributes(graphql))] pub fn derive_interface(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let interface_args = match args::Interface::parse(parse_macro_input!(args as AttributeArgs)) { Ok(interface_args) => interface_args, Err(err) => return err.to_compile_error().into(), }; match interface::generate(&interface_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLUnion, attributes(graphql))] pub fn derive_union(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let union_args = match args::Interface::parse(parse_macro_input!(args as AttributeArgs)) { Ok(union_args) => union_args, Err(err) => return err.to_compile_error().into(), }; match union::generate(&union_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_attribute] #[allow(non_snake_case)] pub fn GQLSubscription(args: TokenStream, input: TokenStream) -> TokenStream { let object_args = match args::Object::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; let mut item_impl = parse_macro_input!(input as ItemImpl); match subscription::generate(&object_args, &mut item_impl) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_attribute] #[allow(non_snake_case)] pub fn GQLScalar(args: TokenStream, input: TokenStream) -> TokenStream { let scalar_args = match args::Scalar::parse(parse_macro_input!(args as AttributeArgs)) { Ok(scalar_args) => scalar_args, Err(err) => return err.to_compile_error().into(), }; let mut item_impl = parse_macro_input!(input as ItemImpl); match scalar::generate(&scalar_args, &mut item_impl) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLMergedObject, attributes(item, graphql))] pub fn derive_merged_object(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let object_args = match args::Object::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; match merged_object::generate(&object_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } } #[proc_macro_derive(GQLMergedSubscription, attributes(item, graphql))] pub fn derive_merged_subscription(input: TokenStream) -> TokenStream { let (args, input) = match parse_derive(input.into()) { Ok(r) => r, Err(err) => return err.to_compile_error().into(), }; let object_args = match args::Object::parse(parse_macro_input!(args as AttributeArgs)) { Ok(object_args) => object_args, Err(err) => return err.to_compile_error().into(), }; match merged_subscription::generate(&object_args, &input) { Ok(expanded) => expanded, Err(err) => err.to_compile_error().into(), } }