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rusalka: implement attributes

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This commit is contained in:
Daniel Bulant 2023-10-30 22:57:43 +01:00
parent 3d6ac6cdcf
commit c83bd506ab
3 changed files with 91 additions and 10 deletions
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5
mangades/src/component_demo_syntax.rs
View file

@ -7,7 +7,10 @@ use rusalka::nodes::primitives::{Rectangle, RectangleAttributes};
make_component!(
ComponentDemo,
Logic {
let radius = 5.;
let radius = attrs.radius;
}
Attributes {
radius: f32
}
Component {
@layout {

92
rusalka-macro/src/lib.rs
View file

@ -1,4 +1,4 @@
use proc_macro::{TokenStream, TokenTree, Ident, Group, Punct, Span};
use proc_macro::{TokenStream, TokenTree, Ident, Group, Punct, Span, Literal};
use quote::quote;
#[derive(Debug)]
@ -264,11 +264,20 @@ pub fn make_component(item: TokenStream) -> TokenStream {
output.extend(Some(TokenTree::Group(component_struct_group)));
// attributes TBD
// attributes
let attributes_struct_stream = TokenStream::new();
let mut attributes_struct_stream = TokenStream::new();
output.extend(TokenStream::from(quote!(#[derive(Default)] pub struct)));
output.extend(Some(TokenTree::Ident(attributes_ident.clone())));
for attribute in &attributes {
attributes_struct_stream.extend(TokenStream::from(quote!(pub)));
attributes_struct_stream.extend(Some(TokenTree::Ident(attribute.name.clone())));
attributes_struct_stream.extend(TokenStream::from(quote!(:)));
attributes_struct_stream.extend(attribute.type_.clone());
attributes_struct_stream.extend(TokenStream::from(quote!(,)));
}
output.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, attributes_struct_stream))));
// partial attributes
@ -276,7 +285,17 @@ pub fn make_component(item: TokenStream) -> TokenStream {
let partial_attributes_ident = Ident::new(&format!("Partial{str_name}Attributes"), Span::call_site());
output.extend(TokenStream::from(quote!(#[derive(Default)] pub struct)));
output.extend(Some(TokenTree::Ident(partial_attributes_ident.clone())));
output.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, TokenStream::new()))));
let mut attributes_default_struct_stream = TokenStream::new();
for attribute in &attributes {
attributes_default_struct_stream.extend(TokenStream::from(quote!(pub)));
attributes_default_struct_stream.extend(Some(TokenTree::Ident(attribute.name.clone())));
attributes_default_struct_stream.extend(TokenStream::from(quote!(: Option<)));
attributes_default_struct_stream.extend(attribute.type_.clone());
attributes_default_struct_stream.extend(TokenStream::from(quote!(>,)));
}
output.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, attributes_default_struct_stream))));
// impl From<Attributes> for PartialAttributes
@ -295,8 +314,24 @@ pub fn make_component(item: TokenStream) -> TokenStream {
from_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Parenthesis, from_args))));
from_stream.extend(TokenStream::from(quote!(-> Self)));
let mut from_fn_stream = TokenStream::new();
from_fn_stream.extend(TokenStream::from(quote!(Self {})));
let mut from_fn_stream = TokenStream::from(quote!(Self));
let mut from_fn_stream_inner = TokenStream::new();
for attribute in &attributes {
from_fn_stream_inner.extend(Some(TokenTree::Ident(attribute.name.clone())));
from_fn_stream_inner.extend(TokenStream::from(quote!(:)));
from_fn_stream_inner.extend(TokenStream::from(quote!(Some)));
let mut from_fn_stream_inner_inner = TokenStream::new();
from_fn_stream_inner_inner.extend(TokenStream::from(quote!(attrs.)));
from_fn_stream_inner_inner.extend(Some(TokenTree::Ident(attribute.name.clone())));
from_fn_stream_inner.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Parenthesis, from_fn_stream_inner_inner))));
}
from_fn_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, from_fn_stream_inner))));
from_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, from_fn_stream))));
output.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, from_stream))));
@ -314,6 +349,9 @@ pub fn make_component(item: TokenStream) -> TokenStream {
component_impl_stream.extend(TokenStream::from(quote!(type PartialComponentAttrs =)));
component_impl_stream.extend(Some(TokenTree::Ident(partial_attributes_ident.clone())));
component_impl_stream.extend(TokenStream::from(quote!(;)));
component_impl_stream.extend(TokenStream::from(quote!(const UPDATE_LENGTH : usize =)));
component_impl_stream.extend(Some(TokenTree::Literal(Literal::usize_unsuffixed(attributes.len()))));
component_impl_stream.extend(TokenStream::from(quote!(;)));
// fn new
@ -385,7 +423,47 @@ pub fn make_component(item: TokenStream) -> TokenStream {
// fn set
component_impl_stream.extend(TokenStream::from(quote!(fn set(&mut self, attrs: Self::PartialComponentAttrs))));
let set_stream = TokenStream::new();
let mut set_stream = TokenStream::new();
if attributes.len() > 0 {
set_stream.extend(TokenStream::from(quote!(let mut to_update = [0; Self::UPDATE_LENGTH];)));
let mut i = 0;
for attribute in &attributes {
set_stream.extend(TokenStream::from(quote!(if let Some)));
let mut some_inner = TokenStream::new();
some_inner.extend(Some(TokenTree::Ident(attribute.name.clone())));
set_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Parenthesis, some_inner))));
set_stream.extend(TokenStream::from(quote!(= attrs.)));
set_stream.extend(Some(TokenTree::Ident(attribute.name.clone())));
let mut set_stream_inner = TokenStream::new();
set_stream_inner.extend(TokenStream::from(quote!(self.attrs.)));
set_stream_inner.extend(Some(TokenTree::Ident(attribute.name.clone())));
set_stream_inner.extend(TokenStream::from(quote!(=)));
set_stream_inner.extend(Some(TokenTree::Ident(attribute.name.clone())));
set_stream_inner.extend(TokenStream::from(quote!(; to_update)));
let mut to_update_stream = TokenStream::new();
to_update_stream.extend(Some(TokenTree::Literal(Literal::u32_unsuffixed(i / 32))));
set_stream_inner.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Bracket, to_update_stream))));
set_stream_inner.extend(TokenStream::from(quote!(|= 1 <<)));
set_stream_inner.extend(Some(TokenTree::Literal(Literal::u32_unsuffixed(i % 32))));
set_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, set_stream_inner))));
i+=1;
}
set_stream.extend(TokenStream::from(quote!(if to_update.into_iter().reduce(|a,b| a+b).unwrap() != 0 { self.update(&to_update); })));
}
component_impl_stream.extend(Some(TokenTree::Group(Group::new(proc_macro::Delimiter::Brace, set_stream))));

4
rusalka/src/nodes/primitives.rs
View file

@ -58,12 +58,12 @@ impl Component for Rectangle {
}
fn set(&mut self, attrs: Self::PartialComponentAttrs) {
let mut to_update = [0];
let mut to_update = [0; Self::UPDATE_LENGTH];
if let Some(radius) = attrs.radius {
self.attrs.radius = radius;
to_update[0] |= 1;
}
if to_update[0] != 0 {
if to_update.into_iter().reduce(|a,b| a+b).unwrap() != 0 {
self.update(&to_update);
}
}