ZIm/crates/gpui2_macros/src/styleable_helpers.rs
2023-09-09 11:30:35 -04:00

326 lines
11 KiB
Rust

use proc_macro::TokenStream;
use proc_macro2::TokenStream as TokenStream2;
use quote::{format_ident, quote};
use syn::{
parse::{Parse, ParseStream, Result},
parse_macro_input,
};
struct StyleableMacroInput;
impl Parse for StyleableMacroInput {
fn parse(_input: ParseStream) -> Result<Self> {
Ok(StyleableMacroInput)
}
}
pub fn styleable_helpers(input: TokenStream) -> TokenStream {
let _ = parse_macro_input!(input as StyleableMacroInput);
let methods = generate_methods();
let output = quote! {
#(#methods)*
};
output.into()
}
fn generate_methods() -> Vec<TokenStream2> {
let mut methods = Vec::new();
for (prefix, auto_allowed, fields) in box_prefixes() {
for (suffix, length_tokens, doc_string) in box_suffixes() {
if auto_allowed || suffix != "auto" {
let method = generate_method(prefix, suffix, &fields, length_tokens, doc_string);
methods.push(method);
}
}
}
for (prefix, fields) in corner_prefixes() {
for (suffix, radius_tokens, doc_string) in corner_suffixes() {
let method = generate_method(prefix, suffix, &fields, radius_tokens, doc_string);
methods.push(method);
}
}
for (prefix, fields) in border_prefixes() {
for (suffix, width_tokens, doc_string) in border_suffixes() {
let method = generate_method(prefix, suffix, &fields, width_tokens, doc_string);
methods.push(method);
}
}
methods
}
fn generate_method(
prefix: &'static str,
suffix: &'static str,
fields: &Vec<TokenStream2>,
length_tokens: TokenStream2,
doc_string: &'static str,
) -> TokenStream2 {
let method_name = if suffix.is_empty() {
format_ident!("{}", prefix)
} else {
format_ident!("{}_{}", prefix, suffix)
};
let field_assignments = fields
.iter()
.map(|field_tokens| {
quote! {
style.#field_tokens = Some(gpui::geometry::#length_tokens);
}
})
.collect::<Vec<_>>();
let method = quote! {
#[doc = #doc_string]
fn #method_name(mut self) -> Self where Self: std::marker::Sized {
let mut style = self.declared_style();
#(#field_assignments)*
self
}
};
method
}
fn box_prefixes() -> Vec<(&'static str, bool, Vec<TokenStream2>)> {
vec![
("w", true, vec![quote! { size.width }]),
("h", true, vec![quote! { size.height }]),
(
"size",
true,
vec![quote! {size.width}, quote! {size.height}],
),
("min_w", false, vec![quote! { min_size.width }]),
("min_h", false, vec![quote! { min_size.height }]),
("max_w", false, vec![quote! { max_size.width }]),
("max_h", false, vec![quote! { max_size.height }]),
(
"m",
true,
vec![
quote! { margin.top },
quote! { margin.bottom },
quote! { margin.left },
quote! { margin.right },
],
),
("mt", true, vec![quote! { margin.top }]),
("mb", true, vec![quote! { margin.bottom }]),
(
"my",
true,
vec![quote! { margin.top }, quote! { margin.bottom }],
),
(
"mx",
true,
vec![quote! { margin.left }, quote! { margin.right }],
),
("ml", true, vec![quote! { margin.left }]),
("mr", true, vec![quote! { margin.right }]),
(
"p",
false,
vec![
quote! { padding.top },
quote! { padding.bottom },
quote! { padding.left },
quote! { padding.right },
],
),
("pt", false, vec![quote! { padding.top }]),
("pb", false, vec![quote! { padding.bottom }]),
(
"px",
false,
vec![quote! { padding.left }, quote! { padding.right }],
),
(
"py",
false,
vec![quote! { padding.top }, quote! { padding.bottom }],
),
("pl", false, vec![quote! { padding.left }]),
("pr", false, vec![quote! { padding.right }]),
("top", true, vec![quote! { inset.top }]),
("bottom", true, vec![quote! { inset.bottom }]),
("left", true, vec![quote! { inset.left }]),
("right", true, vec![quote! { inset.right }]),
(
"gap",
false,
vec![quote! { gap.width }, quote! { gap.height }],
),
("gap_x", false, vec![quote! { gap.width }]),
("gap_y", false, vec![quote! { gap.height }]),
]
}
fn box_suffixes() -> Vec<(&'static str, TokenStream2, &'static str)> {
vec![
("0", quote! { pixels(0.) }, "0px"),
("0p5", quote! { rems(0.125) }, "2px (0.125rem)"),
("1", quote! { rems(0.25) }, "4px (0.25rem)"),
("1p5", quote! { rems(0.375) }, "6px (0.375rem)"),
("2", quote! { rems(0.5) }, "8px (0.5rem)"),
("2p5", quote! { rems(0.625) }, "10px (0.625rem)"),
("3", quote! { rems(0.75) }, "12px (0.75rem)"),
("3p5", quote! { rems(0.875) }, "14px (0.875rem)"),
("4", quote! { rems(1.) }, "16px (1rem)"),
("5", quote! { rems(1.25) }, "20px (1.25rem)"),
("6", quote! { rems(1.5) }, "24px (1.5rem)"),
("7", quote! { rems(1.75) }, "28px (1.75rem)"),
("8", quote! { rems(2.0) }, "32px (2rem)"),
("9", quote! { rems(2.25) }, "36px (2.25rem)"),
("10", quote! { rems(2.5) }, "40px (2.5rem)"),
("11", quote! { rems(2.75) }, "44px (2.75rem)"),
("12", quote! { rems(3.) }, "48px (3rem)"),
("16", quote! { rems(4.) }, "64px (4rem)"),
("20", quote! { rems(5.) }, "80px (5rem)"),
("24", quote! { rems(6.) }, "96px (6rem)"),
("32", quote! { rems(8.) }, "128px (8rem)"),
("40", quote! { rems(10.) }, "160px (10rem)"),
("48", quote! { rems(12.) }, "192px (12rem)"),
("56", quote! { rems(14.) }, "224px (14rem)"),
("64", quote! { rems(16.) }, "256px (16rem)"),
("72", quote! { rems(18.) }, "288px (18rem)"),
("80", quote! { rems(20.) }, "320px (20rem)"),
("96", quote! { rems(24.) }, "384px (24rem)"),
("auto", quote! { auto() }, "Auto"),
("px", quote! { pixels(1.) }, "1px"),
("full", quote! { relative(1.) }, "100%"),
("1_2", quote! { relative(0.5) }, "50% (1/2)"),
("1_3", quote! { relative(1./3.) }, "33% (1/3)"),
("2_3", quote! { relative(2./3.) }, "66% (2/3)"),
("1_4", quote! { relative(0.25) }, "25% (1/4)"),
("2_4", quote! { relative(0.5) }, "50% (2/4)"),
("3_4", quote! { relative(0.75) }, "75% (3/4)"),
("1_5", quote! { relative(0.2) }, "20% (1/5)"),
("2_5", quote! { relative(0.4) }, "40% (2/5)"),
("3_5", quote! { relative(0.6) }, "60% (3/5)"),
("4_5", quote! { relative(0.8) }, "80% (4/5)"),
("1_6", quote! { relative(1./6.) }, "16% (1/6)"),
("5_6", quote! { relative(5./6.) }, "80% (5/6)"),
("1_12", quote! { relative(1./12.) }, "8% (1/12)"),
]
}
fn corner_prefixes() -> Vec<(&'static str, Vec<TokenStream2>)> {
vec![
(
"rounded",
vec![
quote! { corner_radii.top_left },
quote! { corner_radii.top_right },
quote! { corner_radii.bottom_right },
quote! { corner_radii.bottom_left },
],
),
(
"rounded_t",
vec![
quote! { corner_radii.top_left },
quote! { corner_radii.top_right },
],
),
(
"rounded_b",
vec![
quote! { corner_radii.bottom_left },
quote! { corner_radii.bottom_right },
],
),
(
"rounded_r",
vec![
quote! { corner_radii.top_right },
quote! { corner_radii.bottom_right },
],
),
(
"rounded_l",
vec![
quote! { corner_radii.top_left },
quote! { corner_radii.bottom_left },
],
),
("rounded_tl", vec![quote! { corner_radii.top_left }]),
("rounded_tr", vec![quote! { corner_radii.top_right }]),
("rounded_bl", vec![quote! { corner_radii.bottom_left }]),
("rounded_br", vec![quote! { corner_radii.bottom_right }]),
]
}
fn corner_suffixes() -> Vec<(&'static str, TokenStream2, &'static str)> {
vec![
("none", quote! { pixels(0.) }, "0px"),
("sm", quote! { rems(0.125) }, "2px (0.125rem)"),
("md", quote! { rems(0.25) }, "4px (0.25rem)"),
("lg", quote! { rems(0.5) }, "8px (0.5rem)"),
("xl", quote! { rems(0.75) }, "12px (0.75rem)"),
("2xl", quote! { rems(1.) }, "16px (1rem)"),
("3xl", quote! { rems(1.5) }, "24px (1.5rem)"),
("full", quote! { pixels(9999.) }, "9999px"),
]
}
fn border_prefixes() -> Vec<(&'static str, Vec<TokenStream2>)> {
vec![
(
"border",
vec![
quote! { border_widths.top },
quote! { border_widths.right },
quote! { border_widths.bottom },
quote! { border_widths.left },
],
),
("border_t", vec![quote! { border_widths.top }]),
("border_b", vec![quote! { border_widths.bottom }]),
("border_r", vec![quote! { border_widths.right }]),
("border_l", vec![quote! { border_widths.left }]),
(
"border_x",
vec![
quote! { border_widths.left },
quote! { border_widths.right },
],
),
(
"border_y",
vec![
quote! { border_widths.top },
quote! { border_widths.bottom },
],
),
]
}
fn border_suffixes() -> Vec<(&'static str, TokenStream2, &'static str)> {
vec![
("", quote! { pixels(1.)}, "1px"),
("0", quote! { pixels(0.)}, "0px"),
("1", quote! { pixels(1.) }, "1px"),
("2", quote! { pixels(2.) }, "2px"),
("3", quote! { pixels(3.) }, "3px"),
("4", quote! { pixels(4.) }, "4px"),
("5", quote! { pixels(5.) }, "5px"),
("6", quote! { pixels(6.) }, "6px"),
("7", quote! { pixels(7.) }, "7px"),
("8", quote! { pixels(8.) }, "8px"),
("9", quote! { pixels(9.) }, "9px"),
("10", quote! { pixels(10.) }, "10px"),
("11", quote! { pixels(11.) }, "11px"),
("12", quote! { pixels(12.) }, "12px"),
("16", quote! { pixels(16.) }, "16px"),
("20", quote! { pixels(20.) }, "20px"),
("24", quote! { pixels(24.) }, "24px"),
("32", quote! { pixels(32.) }, "32px"),
]
}