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Remove the url! plugin.
In rust-url 1.0 the `Url` struct is going to have private fields, and there is no way to to create an aribitrary one without going through the parser. The plugin never had a clear demonstrated performance benefit, it was made mostly because it was possible and relatively easy at the time.
This commit is contained in:
Simon Sapin
parent
87d5424d4d
commit
6889f37d9e
27 changed files with 84 additions and 296 deletions
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@ -16,7 +16,6 @@ optional = true
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[dependencies]
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tenacious = "0.1.2"
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url = {version = "0.5.7", features = ["heap_size"]}
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[features]
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default = []
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@ -28,8 +28,6 @@ extern crate syntax;
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extern crate syntax_ext;
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extern crate tenacious;
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extern crate url;
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use rustc_plugin::Registry;
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use syntax::ext::base::*;
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use syntax::feature_gate::AttributeType::Whitelisted;
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@ -41,8 +39,6 @@ pub mod jstraceable;
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pub mod lints;
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/// Autogenerates implementations of Reflectable on DOM structs
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pub mod reflector;
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/// The `url!` plugin.
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mod url_plugin;
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/// Utilities for writing plugins
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pub mod utils;
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@ -51,7 +47,6 @@ pub fn plugin_registrar(reg: &mut Registry) {
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reg.register_syntax_extension(intern("dom_struct"), MultiModifier(box jstraceable::expand_dom_struct));
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reg.register_syntax_extension(intern("derive_JSTraceable"), MultiDecorator(box jstraceable::expand_jstraceable));
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reg.register_syntax_extension(intern("_generate_reflector"), MultiDecorator(box reflector::expand_reflector));
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reg.register_macro("url", url_plugin::expand_url);
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reg.register_late_lint_pass(box lints::transmute_type::TransmutePass);
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reg.register_late_lint_pass(box lints::unrooted_must_root::UnrootedPass::new());
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reg.register_late_lint_pass(box lints::privatize::PrivatizePass);
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@ -1,146 +0,0 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use std::error::Error;
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use syntax;
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use syntax::ast::{Expr, ExprKind, LitKind, TokenTree};
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use syntax::codemap::Span;
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use syntax::ext::base::{ExtCtxt, MacResult, MacEager, DummyResult};
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use syntax::ext::build::AstBuilder;
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use syntax::fold::Folder;
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use syntax::parse;
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use syntax::parse::token::InternedString;
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use url::{Url, Host, RelativeSchemeData, SchemeData};
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pub fn expand_url(cx: &mut ExtCtxt, sp: Span, tts: &[TokenTree])
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-> Box<MacResult + 'static> {
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let mut parser = parse::new_parser_from_tts(cx.parse_sess(), cx.cfg(), tts.to_vec());
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let query_expr = cx.expander().fold_expr(parser.parse_expr().unwrap());
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// Ensure a str literal was passed to the macro
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let query = match parse_str_lit(&query_expr) {
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Some(query) => query,
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None => {
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cx.span_err(query_expr.span, "'url!' expected string literal");
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return DummyResult::any(sp)
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},
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};
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// Parse the str literal
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let Url { scheme, scheme_data, query, fragment } = match Url::parse(&query) {
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Ok(url) => url,
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Err(error) => {
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cx.span_err(query_expr.span, error.description());
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return DummyResult::any(sp)
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}
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};
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let scheme_data_expr = cx.expr_scheme_data(sp, scheme_data);
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let query_expr = cx.expr_option_string(sp, query);
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let fragment_expr = cx.expr_option_string(sp, fragment);
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let url_expr = quote_expr!(cx, {
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::url::Url {
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scheme: $scheme.to_owned(),
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scheme_data: $scheme_data_expr,
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query: $query_expr,
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fragment: $fragment_expr,
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}
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});
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MacEager::expr(url_expr)
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}
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fn parse_str_lit(e: &Expr) -> Option<InternedString> {
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if let ExprKind::Lit(ref lit) = e.node {
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if let LitKind::Str(ref s, _) = lit.node {
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return Some(s.clone());
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}
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}
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None
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}
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trait ExtCtxtHelpers {
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fn expr_scheme_data(&self, sp: Span, scheme_data: SchemeData) -> syntax::ptr::P<Expr>;
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fn expr_option_string(&self, sp: Span, string: Option<String>) -> syntax::ptr::P<Expr>;
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fn expr_option_u16(&self, sp: Span, unsigned: Option<u16>) -> syntax::ptr::P<Expr>;
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fn expr_host(&self, sp: Span, host: Host) -> syntax::ptr::P<Expr>;
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fn expr_slice_u16(&self, sp: Span, unsigned: &[u16]) -> syntax::ptr::P<Expr>;
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fn expr_vec_string(&self, sp: Span, strings: Vec<String>) -> syntax::ptr::P<Expr>;
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}
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impl<'a> ExtCtxtHelpers for ExtCtxt<'a> {
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fn expr_scheme_data(&self, sp: Span, scheme_data: SchemeData) -> syntax::ptr::P<Expr> {
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match scheme_data {
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SchemeData::Relative(
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RelativeSchemeData { username, password, host, port, default_port, path }) =>
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{
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let password_expr = self.expr_option_string(sp, password);
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let host_expr = self.expr_host(sp, host);
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let port_expr = self.expr_option_u16(sp, port);
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let default_port_expr = self.expr_option_u16(sp, default_port);
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let path_expr = self.expr_vec_string(sp, path);
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quote_expr!(self,
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::url::SchemeData::Relative(
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::url::RelativeSchemeData {
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username: $username.to_owned(),
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password: $password_expr,
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host: $host_expr,
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port: $port_expr,
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default_port: $default_port_expr,
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path: $path_expr.to_owned(),
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}
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))
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},
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SchemeData::NonRelative(ref scheme_data) => {
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quote_expr!(self, ::url::SchemeData::NonRelative($scheme_data.to_owned()))
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},
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}
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}
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fn expr_option_string(&self, sp: Span, string: Option<String>) -> syntax::ptr::P<Expr> {
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match string {
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Some(string) => quote_expr!(self, Some($string.to_owned())),
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None => self.expr_none(sp),
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}
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}
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fn expr_option_u16(&self, sp: Span, unsigned: Option<u16>) -> syntax::ptr::P<Expr> {
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match unsigned {
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Some(unsigned) => quote_expr!(self, Some($unsigned)),
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None => self.expr_none(sp),
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}
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}
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fn expr_host(&self, _sp: Span, host: Host) -> syntax::ptr::P<Expr> {
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match host {
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Host::Domain(domain) => quote_expr!(self, ::url::Host::Domain(String::from($domain))),
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Host::Ipv6(address) => {
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let [a, b, c, d, e, f, g, h] = address.segments();
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quote_expr!(self,
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::url::Host::Ipv6(::std::net::Ipv6Addr::new(
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$a, $b, $c, $d, $e, $f, $g, $h
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)))
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},
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Host::Ipv4(address) => {
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let [a, b, c, d] = address.octets();
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quote_expr!(self,
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::url::Host::Ipv4(::std::net::Ipv4Addr::new(
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$a, $b, $c, $d
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)))
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},
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}
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}
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fn expr_slice_u16(&self, sp: Span, unsigned: &[u16]) -> syntax::ptr::P<Expr> {
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let unsigned = unsigned.iter().map(|p| quote_expr!(self, $p)).collect();
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self.expr_vec_slice(sp, unsigned)
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}
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fn expr_vec_string(&self, sp: Span, strings: Vec<String>) -> syntax::ptr::P<Expr> {
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let strings = strings.iter().map(|p| quote_expr!(self, $p.to_owned())).collect();
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self.expr_vec(sp, strings)
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}
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}
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