WIP - Next: implement Element derive macro
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Nathan Sobo
parent
6d2b27689d
commit
dfeb702544
21 changed files with 980 additions and 119 deletions
332
crates/gpui3_macros/src/style_helpers.rs
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332
crates/gpui3_macros/src/style_helpers.rs
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@ -0,0 +1,332 @@
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use proc_macro::TokenStream;
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use proc_macro2::TokenStream as TokenStream2;
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use quote::{format_ident, quote};
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use syn::{
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parse::{Parse, ParseStream, Result},
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parse_macro_input,
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};
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struct StyleableMacroInput;
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impl Parse for StyleableMacroInput {
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fn parse(_input: ParseStream) -> Result<Self> {
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Ok(StyleableMacroInput)
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}
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}
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pub fn style_helpers(input: TokenStream) -> TokenStream {
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let _ = parse_macro_input!(input as StyleableMacroInput);
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let methods = generate_methods();
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for method in &methods {
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println!("method: {}", method);
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}
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let output = quote! {
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#(#methods)*
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};
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output.into()
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}
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fn generate_methods() -> Vec<TokenStream2> {
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let mut methods = Vec::new();
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for (prefix, auto_allowed, fields) in box_prefixes() {
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for (suffix, length_tokens) in box_suffixes() {
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if auto_allowed || suffix != "auto" {
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let method = generate_method(prefix, suffix, &fields, length_tokens);
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methods.push(method);
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}
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}
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}
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for (prefix, fields) in corner_prefixes() {
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for (suffix, radius_tokens) in corner_suffixes() {
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let method = generate_method(prefix, suffix, &fields, radius_tokens);
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methods.push(method);
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}
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}
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for (prefix, fields) in border_prefixes() {
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for (suffix, width_tokens) in border_suffixes() {
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let method = generate_method(prefix, suffix, &fields, width_tokens);
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methods.push(method);
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}
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}
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methods
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}
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fn generate_method(
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prefix: &'static str,
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suffix: &'static str,
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fields: &Vec<TokenStream2>,
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length_tokens: TokenStream2,
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) -> TokenStream2 {
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let method_name = if suffix.is_empty() {
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format_ident!("{}", prefix)
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} else {
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format_ident!("{}_{}", prefix, suffix)
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};
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let field_assignments = fields
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.iter()
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.map(|field_tokens| {
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quote! {
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style.#field_tokens = Some(gpui2::#length_tokens.into());
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}
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})
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.collect::<Vec<_>>();
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let method = quote! {
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fn #method_name(mut self) -> Self where Self: std::marker::Sized {
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let style = self.declared_style();
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#(#field_assignments)*
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self
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}
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};
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method
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}
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fn box_prefixes() -> Vec<(&'static str, bool, Vec<TokenStream2>)> {
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vec![
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("w", true, vec![quote! { size.width }]),
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("h", true, vec![quote! { size.height }]),
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(
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"size",
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true,
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vec![quote! {size.width}, quote! {size.height}],
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),
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("min_w", false, vec![quote! { min_size.width }]),
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("min_h", false, vec![quote! { min_size.height }]),
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("max_w", false, vec![quote! { max_size.width }]),
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("max_h", false, vec![quote! { max_size.height }]),
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(
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"m",
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true,
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vec![
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quote! { margin.top },
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quote! { margin.bottom },
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quote! { margin.left },
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quote! { margin.right },
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],
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),
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("mt", true, vec![quote! { margin.top }]),
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("mb", true, vec![quote! { margin.bottom }]),
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(
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"my",
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true,
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vec![quote! { margin.top }, quote! { margin.bottom }],
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),
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(
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"mx",
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true,
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vec![quote! { margin.left }, quote! { margin.right }],
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),
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("ml", true, vec![quote! { margin.left }]),
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("mr", true, vec![quote! { margin.right }]),
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(
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"p",
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false,
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vec![
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quote! { padding.top },
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quote! { padding.bottom },
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quote! { padding.left },
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quote! { padding.right },
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],
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),
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("pt", false, vec![quote! { padding.top }]),
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("pb", false, vec![quote! { padding.bottom }]),
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(
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"px",
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false,
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vec![quote! { padding.left }, quote! { padding.right }],
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),
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(
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"py",
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false,
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vec![quote! { padding.top }, quote! { padding.bottom }],
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),
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("pl", false, vec![quote! { padding.left }]),
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("pr", false, vec![quote! { padding.right }]),
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("top", true, vec![quote! { inset.top }]),
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("bottom", true, vec![quote! { inset.bottom }]),
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("left", true, vec![quote! { inset.left }]),
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("right", true, vec![quote! { inset.right }]),
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(
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"gap",
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false,
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vec![quote! { gap.width }, quote! { gap.height }],
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),
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("gap_x", false, vec![quote! { gap.width }]),
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("gap_y", false, vec![quote! { gap.height }]),
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]
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}
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fn box_suffixes() -> Vec<(&'static str, TokenStream2)> {
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vec![
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("0", quote! { px(0.) }),
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("0p5", quote! { rems(0.125) }),
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("1", quote! { rems(0.25) }),
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("1p5", quote! { rems(0.375) }),
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("2", quote! { rems(0.5) }),
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("2p5", quote! { rems(0.625) }),
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("3", quote! { rems(0.75) }),
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("3p5", quote! { rems(0.875) }),
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("4", quote! { rems(1.) }),
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("5", quote! { rems(1.25) }),
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("6", quote! { rems(1.5) }),
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("7", quote! { rems(1.75) }),
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("8", quote! { rems(2.0) }),
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("9", quote! { rems(2.25) }),
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("10", quote! { rems(2.5) }),
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("11", quote! { rems(2.75) }),
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("12", quote! { rems(3.) }),
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("16", quote! { rems(4.) }),
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("20", quote! { rems(5.) }),
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("24", quote! { rems(6.) }),
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("32", quote! { rems(8.) }),
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("40", quote! { rems(10.) }),
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("48", quote! { rems(12.) }),
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("56", quote! { rems(14.) }),
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("64", quote! { rems(16.) }),
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("72", quote! { rems(18.) }),
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("80", quote! { rems(20.) }),
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("96", quote! { rems(24.) }),
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("auto", quote! { auto() }),
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("px", quote! { px(1.) }),
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("full", quote! { relative(1.) }),
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("1_2", quote! { relative(0.5) }),
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("1_3", quote! { relative(1./3.) }),
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("2_3", quote! { relative(2./3.) }),
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("1_4", quote! { relative(0.25) }),
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("2_4", quote! { relative(0.5) }),
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("3_4", quote! { relative(0.75) }),
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("1_5", quote! { relative(0.2) }),
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("2_5", quote! { relative(0.4) }),
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("3_5", quote! { relative(0.6) }),
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("4_5", quote! { relative(0.8) }),
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("1_6", quote! { relative(1./6.) }),
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("5_6", quote! { relative(5./6.) }),
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("1_12", quote! { relative(1./12.) }),
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// ("screen_50", quote! { DefiniteLength::Vh(50.0) }),
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// ("screen_75", quote! { DefiniteLength::Vh(75.0) }),
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// ("screen", quote! { DefiniteLength::Vh(100.0) }),
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]
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}
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fn corner_prefixes() -> Vec<(&'static str, Vec<TokenStream2>)> {
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vec![
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(
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"rounded",
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vec![
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quote! { corner_radii.top_left },
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quote! { corner_radii.top_right },
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quote! { corner_radii.bottom_right },
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quote! { corner_radii.bottom_left },
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],
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),
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(
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"rounded_t",
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vec![
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quote! { corner_radii.top_left },
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quote! { corner_radii.top_right },
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],
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),
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(
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"rounded_b",
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vec![
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quote! { corner_radii.bottom_left },
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quote! { corner_radii.bottom_right },
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],
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),
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(
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"rounded_r",
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vec![
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quote! { corner_radii.top_right },
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quote! { corner_radii.bottom_right },
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],
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),
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(
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"rounded_l",
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vec![
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quote! { corner_radii.top_left },
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quote! { corner_radii.bottom_left },
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],
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),
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("rounded_tl", vec![quote! { corner_radii.top_left }]),
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("rounded_tr", vec![quote! { corner_radii.top_right }]),
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("rounded_bl", vec![quote! { corner_radii.bottom_left }]),
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("rounded_br", vec![quote! { corner_radii.bottom_right }]),
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]
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}
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fn corner_suffixes() -> Vec<(&'static str, TokenStream2)> {
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vec![
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("none", quote! { px(0.) }),
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("sm", quote! { rems(0.125) }),
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("md", quote! { rems(0.25) }),
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("lg", quote! { rems(0.5) }),
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("xl", quote! { rems(0.75) }),
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("2xl", quote! { rems(1.) }),
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("3xl", quote! { rems(1.5) }),
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("full", quote! { px(9999.) }),
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]
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}
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fn border_prefixes() -> Vec<(&'static str, Vec<TokenStream2>)> {
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vec![
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(
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"border",
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vec![
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quote! { border_widths.top },
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quote! { border_widths.right },
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quote! { border_widths.bottom },
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quote! { border_widths.left },
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],
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),
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("border_t", vec![quote! { border_widths.top }]),
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("border_b", vec![quote! { border_widths.bottom }]),
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("border_r", vec![quote! { border_widths.right }]),
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("border_l", vec![quote! { border_widths.left }]),
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(
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"border_x",
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vec![
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quote! { border_widths.left },
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quote! { border_widths.right },
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],
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),
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(
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"border_y",
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vec![
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quote! { border_widths.top },
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quote! { border_widths.bottom },
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],
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),
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]
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}
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fn border_suffixes() -> Vec<(&'static str, TokenStream2)> {
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vec![
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("", quote! { px(1.) }),
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("0", quote! { px(0.) }),
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("1", quote! { px(1.) }),
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("2", quote! { px(2.) }),
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("3", quote! { px(3.) }),
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("4", quote! { px(4.) }),
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("5", quote! { px(5.) }),
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("6", quote! { px(6.) }),
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("7", quote! { px(7.) }),
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("8", quote! { px(8.) }),
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("9", quote! { px(9.) }),
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("10", quote! { px(10.) }),
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("11", quote! { px(11.) }),
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("12", quote! { px(12.) }),
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("16", quote! { px(16.) }),
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("20", quote! { px(20.) }),
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("24", quote! { px(24.) }),
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("32", quote! { px(32.) }),
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]
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}
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