syntax: Parse import prefixes as paths

This commit is contained in:
Vadim Petrochenkov 2016-04-17 03:48:40 +03:00
parent 6fa61b810d
commit e7bc939f1e
9 changed files with 224 additions and 134 deletions

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@ -0,0 +1,26 @@
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
mod a {
pub mod b {
pub mod c {
pub struct S;
pub struct Z;
}
}
}
macro_rules! import {
($p: path) => (use $p {S, Z}); //~ERROR expected one of `::`, `;`, or `as`, found `{`
}
import! { a::b::c }
fn main() {}

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@ -0,0 +1,26 @@
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
mod a {
pub mod b {
pub mod c {
pub struct S;
pub struct Z;
}
}
}
macro_rules! import {
($p: path) => (use ::$p {S, Z}); //~ERROR expected identifier, found `a::b::c`
}
import! { a::b::c }
fn main() {}

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@ -0,0 +1,25 @@
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
mod a {
pub mod b {
pub mod c {
pub struct S<T>(T);
}
}
}
macro_rules! import {
($p: path) => (use $p;);
}
import! { a::b::c::S<u8> } //~ERROR type or lifetime parameter is found in import path
fn main() {}

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@ -0,0 +1,13 @@
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use self::Self as Foo; //~ ERROR unresolved import `self::Self`
pub fn main() {}

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@ -39,9 +39,6 @@ pub fn main() {
}
}
use self::Self as Foo;
//~^ ERROR expected identifier, found keyword `Self`
use std::option::Option as Self;
//~^ ERROR expected identifier, found keyword `Self`

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@ -10,4 +10,4 @@
// compile-flags: -Z parse-only
use std::any::; //~ ERROR expected identifier or `{` or `*`, found `;`
use std::any::; //~ ERROR expected identifier, found `;`

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@ -0,0 +1,35 @@
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
mod a {
pub mod b {
pub mod c {
pub struct S;
pub struct Z;
}
pub struct W;
}
}
macro_rules! import {
(1 $p: path) => (use $p;);
(2 $p: path) => (use $p::{Z};);
(3 $p: path) => (use $p::*;);
}
import! { 1 a::b::c::S }
import! { 2 a::b::c }
import! { 3 a::b }
fn main() {
let s = S;
let z = Z;
let w = W;
}