fork/Graphite
1
0
Fork 0
mirror of https://github.com/GraphiteEditor/Graphite.git synced 2026-09-16 23:08:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

Try and fail to make nodes object-safe in node graph

Browse Source
This commit is contained in:
Dennis
2022-04-02 20:50:53 +02:00
committed by Keavon Chambers
parent 800fb4dbc1
commit 3243b80cf2
12 changed files with 200 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
node-graph/proc-macro/src/lib.rs
View File

@@ -1,28 +1,27 @@
use graphene_core;
use proc_macro::TokenStream;
use proc_macro_roids::*;
use quote::{quote, ToTokens};
use syn::punctuated::Punctuated;
use syn::{parse_macro_input, FnArg, ItemFn, Pat, Type};
fn extract_type(a: FnArg) -> Box<Type> {
fn extract_type(a: FnArg) -> Type {
match a {
FnArg::Typed(p) => p.ty, // notice `ty` instead of `pat`
FnArg::Typed(p) => *p.ty, // notice `ty` instead of `pat`
_ => panic!("Not supported on types with `self`!"),
}
}
fn extract_arg_types(fn_args: Punctuated<FnArg, syn::token::Comma>) -> Vec<Box<Type>> {
return fn_args.into_iter().map(extract_type).collect::<Vec<_>>();
fn extract_arg_types(fn_args: Punctuated<FnArg, syn::token::Comma>) -> Vec<Type> {
fn_args.into_iter().map(extract_type).collect::<Vec<_>>()
}
fn extract_arg_idents(fn_args: Punctuated<FnArg, syn::token::Comma>) -> Vec<Box<Pat>> {
return fn_args.into_iter().map(extract_arg_pat).collect::<Vec<_>>();
fn extract_arg_idents(fn_args: Punctuated<FnArg, syn::token::Comma>) -> Vec<Pat> {
fn_args.into_iter().map(extract_arg_pat).collect::<Vec<_>>()
}
fn extract_arg_pat(a: FnArg) -> Box<Pat> {
fn extract_arg_pat(a: FnArg) -> Pat {
match a {
FnArg::Typed(p) => p.pat,
FnArg::Typed(p) => *p.pat,
_ => panic!("Not supported on types with `self`!"),
}
}
@@ -30,7 +29,7 @@ fn extract_arg_pat(a: FnArg) -> Box<Pat> {
#[proc_macro_attribute] // 2
pub fn to_node(_attr: TokenStream, item: TokenStream) -> TokenStream {
let string = item.to_string();
let item2 = item.clone();
let item2 = item;
let parsed = parse_macro_input!(item2 as ItemFn); // 3
//item.extend(generate_to_string(parsed, string)); // 4
//item
@@ -56,9 +55,16 @@ fn generate_to_string(parsed: ItemFn, string: String) -> TokenStream {
.iter()
.map(|t| t.to_token_stream())
.collect::<Vec<_>>();
let const_idents = idents
.iter()
.map(|t| {
let name = t.to_string().to_uppercase();
quote! {#name}
})
.collect::<Vec<_>>();
let node_fn_name = fn_name.append("_node");
let struct_name = fn_name.append("_node");
let struct_name = fn_name.append("_input");
let return_type_string = fn_return_type
.to_token_stream()
.to_string()
@@ -68,15 +74,18 @@ fn generate_to_string(parsed: ItemFn, string: String) -> TokenStream {
.map(|t| t.to_string())
.collect::<Vec<_>>()
.join(", ");
let error = format!("called {} with the wrong type", fn_name.to_string());
let error = format!("called {} with the wrong type", fn_name);
let x = quote! {
//#whole_function
mod #fn_name {
#(const #const_idents: DefaultNode<#types> = DefaultNode::new();)*
struct #struct_name {
#(#idents: #types,)*
}
impl Node for #struct_name {
}
impl
}
fn #node_fn_name #generics() -> Node<'static> {