119 lines
3.0 KiB
TypeScript
119 lines
3.0 KiB
TypeScript
import htmlData from "@wzlin/html-data";
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import { writeFileSync } from "fs";
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import { join } from "path";
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import { RUST_OUT_DIR } from "./_common";
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const rsTagAttr = ({
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redundantIfEmpty,
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defaultValue,
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collapseAndTrim,
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boolean,
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}: {
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boolean: boolean;
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redundantIfEmpty: boolean;
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collapseAndTrim: boolean;
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defaultValue?: string;
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}) =>
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`AttributeMinification { boolean: ${boolean}, redundant_if_empty: ${redundantIfEmpty}, collapse_and_trim: ${collapseAndTrim}, default_value: ${
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defaultValue == undefined ? "None" : `Some(b"${defaultValue}")`
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} }`;
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let code = `
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use lazy_static::lazy_static;
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use std::collections::HashMap;
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use crate::common::spec::tag::ns::Namespace;
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pub struct AttributeMinification {
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pub boolean: bool,
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pub redundant_if_empty: bool,
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pub collapse_and_trim: bool,
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pub default_value: Option<&'static [u8]>,
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}
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pub enum AttrMapEntry {
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AllNamespaceElements(AttributeMinification),
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SpecificNamespaceElements(HashMap<&'static [u8], AttributeMinification>),
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}
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pub struct ByNamespace {
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// Make pub so this struct can be statically created in gen/attrs.rs.
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pub html: Option<AttrMapEntry>,
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pub svg: Option<AttrMapEntry>,
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}
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impl ByNamespace {
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fn get(&self, ns: Namespace) -> Option<&AttrMapEntry> {
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match ns {
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Namespace::Html => self.html.as_ref(),
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Namespace::Svg => self.svg.as_ref(),
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}
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}
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}
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pub struct AttrMap(HashMap<&'static [u8], ByNamespace>);
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impl AttrMap {
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pub const fn new(map: HashMap<&'static [u8], ByNamespace>) -> AttrMap {
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AttrMap(map)
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}
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pub fn get(&self, ns: Namespace, tag: &[u8], attr: &[u8]) -> Option<&AttributeMinification> {
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self.0.get(attr).and_then(|namespaces| namespaces.get(ns)).and_then(|entry| match entry {
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AttrMapEntry::AllNamespaceElements(min) => Some(min),
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AttrMapEntry::SpecificNamespaceElements(map) => map.get(tag),
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})
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}
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}
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`;
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code += `
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lazy_static! {
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pub static ref ATTRS: AttrMap = {
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let mut m = HashMap::<&'static [u8], ByNamespace>::new();
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${[...Object.entries(htmlData.attributes)]
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.map(
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([attr_name, namespaces]) => ` m.insert(b\"${attr_name}\", ByNamespace {
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${(["html", "svg"] as const)
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.map(
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(ns) =>
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` ${ns}: ` +
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(() => {
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const tagsMap = namespaces[ns];
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if (!tagsMap) {
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return "None";
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}
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const globalAttr = tagsMap["*"];
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if (globalAttr) {
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return `Some(AttrMapEntry::AllNamespaceElements(${rsTagAttr(
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globalAttr
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)}))`;
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}
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const entries = Object.entries(tagsMap);
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return `Some({
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let ${
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entries.length ? "mut" : ""
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} m = HashMap::<&'static [u8], AttributeMinification>::new();
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${entries
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.map(
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([tagName, tagAttr]) =>
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` m.insert(b\"${tagName}\", ${rsTagAttr(tagAttr)});`
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)
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.join("\n")}
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AttrMapEntry::SpecificNamespaceElements(m)
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})`;
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})() +
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","
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)
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.join("\n")}
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});
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`
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)
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.join("")}
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AttrMap::new(m)
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};
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}`;
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writeFileSync(join(RUST_OUT_DIR, "attrs.rs"), code);
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