56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
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// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use syntax::ext::base::{SyntaxExtension, NamedSyntaxExtension, NormalTT};
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use syntax::ext::base::{IdentTT, ItemDecorator, ItemModifier, BasicMacroExpander};
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use syntax::ext::base::{MacroExpanderFn};
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use syntax::codemap::Span;
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use syntax::parse::token;
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use syntax::ast;
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pub struct Registry {
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#[doc(hidden)]
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pub krate_span: Span,
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#[doc(hidden)]
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pub syntax_exts: Vec<NamedSyntaxExtension>,
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}
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pub type PluginRegistrarFun =
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fn(&mut Registry);
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impl Registry {
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#[doc(hidden)]
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pub fn new(krate: &ast::Crate) -> Registry {
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Registry {
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krate_span: krate.span,
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syntax_exts: vec!(),
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}
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}
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pub fn register_syntax_extension(&mut self, name: ast::Name, extension: SyntaxExtension) {
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self.syntax_exts.push((name, match extension {
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NormalTT(ext, _) => NormalTT(ext, Some(self.krate_span)),
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IdentTT(ext, _) => IdentTT(ext, Some(self.krate_span)),
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ItemDecorator(ext) => ItemDecorator(ext),
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ItemModifier(ext) => ItemModifier(ext),
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}));
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}
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pub fn register_macro(&mut self, name: &str, expander: MacroExpanderFn) {
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self.register_syntax_extension(
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token::intern(name),
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NormalTT(box BasicMacroExpander {
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expander: expander,
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span: None,
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}, None));
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}
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}
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