diff options
| -rw-r--r-- | Cargo.lock | 1 | ||||
| -rw-r--r-- | compiler/rustc_attr/Cargo.toml | 1 | ||||
| -rw-r--r-- | compiler/rustc_attr/src/builtin.rs | 32 | ||||
| -rw-r--r-- | src/test/ui/feature-gates/feature-gate-cfg-version.rs | 30 | ||||
| -rw-r--r-- | src/test/ui/feature-gates/feature-gate-cfg-version.stderr | 110 |
5 files changed, 138 insertions, 36 deletions
diff --git a/Cargo.lock b/Cargo.lock index b2ae22b6abd..ee52e34163b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3568,7 +3568,6 @@ dependencies = [ "rustc_serialize", "rustc_session", "rustc_span", - "version_check", ] [[package]] diff --git a/compiler/rustc_attr/Cargo.toml b/compiler/rustc_attr/Cargo.toml index 5f941a0a650..dc0711a5b0f 100644 --- a/compiler/rustc_attr/Cargo.toml +++ b/compiler/rustc_attr/Cargo.toml @@ -18,4 +18,3 @@ rustc_lexer = { path = "../rustc_lexer" } rustc_macros = { path = "../rustc_macros" } rustc_session = { path = "../rustc_session" } rustc_ast = { path = "../rustc_ast" } -version_check = "0.9" diff --git a/compiler/rustc_attr/src/builtin.rs b/compiler/rustc_attr/src/builtin.rs index ead90f23ce7..26baaf07880 100644 --- a/compiler/rustc_attr/src/builtin.rs +++ b/compiler/rustc_attr/src/builtin.rs @@ -10,7 +10,6 @@ use rustc_session::Session; use rustc_span::hygiene::Transparency; use rustc_span::{symbol::sym, symbol::Symbol, Span}; use std::num::NonZeroU32; -use version_check::Version; pub fn is_builtin_attr(attr: &Attribute) -> bool { attr.is_doc_comment() || attr.ident().filter(|ident| is_builtin_attr_name(ident.name)).is_some() @@ -526,6 +525,26 @@ fn gate_cfg(gated_cfg: &GatedCfg, cfg_span: Span, sess: &ParseSess, features: &F } } +#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)] +struct Version { + major: u16, + minor: u16, + patch: u16, +} + +fn parse_version(s: &str, allow_appendix: bool) -> Option<Version> { + let mut components = s.split('-'); + let d = components.next()?; + if !allow_appendix && components.next().is_some() { + return None; + } + let mut digits = d.splitn(3, '.'); + let major = digits.next()?.parse().ok()?; + let minor = digits.next()?.parse().ok()?; + let patch = digits.next().unwrap_or("0").parse().ok()?; + Some(Version { major, minor, patch }) +} + /// Evaluate a cfg-like condition (with `any` and `all`), using `eval` to /// evaluate individual items. pub fn eval_condition( @@ -555,16 +574,21 @@ pub fn eval_condition( return false; } }; - let min_version = match Version::parse(&min_version.as_str()) { + let min_version = match parse_version(&min_version.as_str(), false) { Some(ver) => ver, None => { - sess.span_diagnostic.struct_span_err(*span, "invalid version literal").emit(); + sess.span_diagnostic + .struct_span_warn( + *span, + "unknown version literal format, assuming it refers to a future version", + ) + .emit(); return false; } }; let channel = env!("CFG_RELEASE_CHANNEL"); let nightly = channel == "nightly" || channel == "dev"; - let rustc_version = Version::parse(env!("CFG_RELEASE")).unwrap(); + let rustc_version = parse_version(env!("CFG_RELEASE"), true).unwrap(); // See https://github.com/rust-lang/rust/issues/64796#issuecomment-625474439 for details if nightly { rustc_version > min_version } else { rustc_version >= min_version } diff --git a/src/test/ui/feature-gates/feature-gate-cfg-version.rs b/src/test/ui/feature-gates/feature-gate-cfg-version.rs index c29ef99945e..e35784a68d1 100644 --- a/src/test/ui/feature-gates/feature-gate-cfg-version.rs +++ b/src/test/ui/feature-gates/feature-gate-cfg-version.rs @@ -1,3 +1,9 @@ +#[cfg(version(42))] //~ ERROR: expected a version literal +//~^ ERROR `cfg(version)` is experimental and subject to change +fn foo() {} +#[cfg(version(1.20))] //~ ERROR: expected a version literal +//~^ ERROR `cfg(version)` is experimental and subject to change +fn foo() -> bool { true } #[cfg(version("1.44"))] //~^ ERROR `cfg(version)` is experimental and subject to change fn foo() -> bool { true } @@ -11,30 +17,32 @@ fn bar() -> bool { false } #[cfg(version(false))] //~ ERROR: expected a version literal //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { false } -#[cfg(version("foo"))] //~ ERROR: invalid version literal +#[cfg(version("foo"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { false } -#[cfg(version("999"))] +#[cfg(version("999"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { false } -#[cfg(version("-1"))] //~ ERROR: invalid version literal +#[cfg(version("-1"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { false } -#[cfg(version("65536"))] //~ ERROR: invalid version literal +#[cfg(version("65536"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { false } -#[cfg(version("0"))] +#[cfg(version("0"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() -> bool { true } - -#[cfg(version("1.65536.2"))] +#[cfg(version("1.0"))] +//~^ ERROR `cfg(version)` is experimental and subject to change +fn bar() -> bool { true } +#[cfg(version("1.65536.2"))] //~ WARNING: unknown version literal format +//~^ ERROR `cfg(version)` is experimental and subject to change +fn bar() -> bool { false } +#[cfg(version("1.20.0-stable"))] //~ WARNING: unknown version literal format //~^ ERROR `cfg(version)` is experimental and subject to change -fn version_check_bug() {} +fn bar() {} fn main() { - // This should fail but due to a bug in version_check `1.65536.2` is interpreted as `1.2`. - // See https://github.com/SergioBenitez/version_check/issues/11 - version_check_bug(); assert!(foo()); assert!(bar()); assert!(cfg!(version("1.42"))); //~ ERROR `cfg(version)` is experimental and subject to change diff --git a/src/test/ui/feature-gates/feature-gate-cfg-version.stderr b/src/test/ui/feature-gates/feature-gate-cfg-version.stderr index bdf160b5a02..ae899d409ec 100644 --- a/src/test/ui/feature-gates/feature-gate-cfg-version.stderr +++ b/src/test/ui/feature-gates/feature-gate-cfg-version.stderr @@ -1,6 +1,36 @@ error[E0658]: `cfg(version)` is experimental and subject to change --> $DIR/feature-gate-cfg-version.rs:1:7 | +LL | #[cfg(version(42))] + | ^^^^^^^^^^^ + | + = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information + = help: add `#![feature(cfg_version)]` to the crate attributes to enable + +error: expected a version literal + --> $DIR/feature-gate-cfg-version.rs:1:15 + | +LL | #[cfg(version(42))] + | ^^ + +error[E0658]: `cfg(version)` is experimental and subject to change + --> $DIR/feature-gate-cfg-version.rs:4:7 + | +LL | #[cfg(version(1.20))] + | ^^^^^^^^^^^^^ + | + = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information + = help: add `#![feature(cfg_version)]` to the crate attributes to enable + +error: expected a version literal + --> $DIR/feature-gate-cfg-version.rs:4:15 + | +LL | #[cfg(version(1.20))] + | ^^^^ + +error[E0658]: `cfg(version)` is experimental and subject to change + --> $DIR/feature-gate-cfg-version.rs:7:7 + | LL | #[cfg(version("1.44"))] | ^^^^^^^^^^^^^^^ | @@ -8,7 +38,7 @@ LL | #[cfg(version("1.44"))] = help: add `#![feature(cfg_version)]` to the crate attributes to enable error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:4:11 + --> $DIR/feature-gate-cfg-version.rs:10:11 | LL | #[cfg(not(version("1.44")))] | ^^^^^^^^^^^^^^^ @@ -17,7 +47,7 @@ LL | #[cfg(not(version("1.44")))] = help: add `#![feature(cfg_version)]` to the crate attributes to enable error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:8:7 + --> $DIR/feature-gate-cfg-version.rs:14:7 | LL | #[cfg(version("1.43", "1.44", "1.45"))] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -26,13 +56,13 @@ LL | #[cfg(version("1.43", "1.44", "1.45"))] = help: add `#![feature(cfg_version)]` to the crate attributes to enable error: expected single version literal - --> $DIR/feature-gate-cfg-version.rs:8:7 + --> $DIR/feature-gate-cfg-version.rs:14:7 | LL | #[cfg(version("1.43", "1.44", "1.45"))] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:11:7 + --> $DIR/feature-gate-cfg-version.rs:17:7 | LL | #[cfg(version(false))] | ^^^^^^^^^^^^^^ @@ -41,13 +71,13 @@ LL | #[cfg(version(false))] = help: add `#![feature(cfg_version)]` to the crate attributes to enable error: expected a version literal - --> $DIR/feature-gate-cfg-version.rs:11:15 + --> $DIR/feature-gate-cfg-version.rs:17:15 | LL | #[cfg(version(false))] | ^^^^^ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:14:7 + --> $DIR/feature-gate-cfg-version.rs:20:7 | LL | #[cfg(version("foo"))] | ^^^^^^^^^^^^^^ @@ -55,14 +85,14 @@ LL | #[cfg(version("foo"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable -error: invalid version literal - --> $DIR/feature-gate-cfg-version.rs:14:15 +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:20:15 | LL | #[cfg(version("foo"))] | ^^^^^ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:17:7 + --> $DIR/feature-gate-cfg-version.rs:23:7 | LL | #[cfg(version("999"))] | ^^^^^^^^^^^^^^ @@ -70,8 +100,14 @@ LL | #[cfg(version("999"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:23:15 + | +LL | #[cfg(version("999"))] + | ^^^^^ + error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:20:7 + --> $DIR/feature-gate-cfg-version.rs:26:7 | LL | #[cfg(version("-1"))] | ^^^^^^^^^^^^^ @@ -79,14 +115,14 @@ LL | #[cfg(version("-1"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable -error: invalid version literal - --> $DIR/feature-gate-cfg-version.rs:20:15 +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:26:15 | LL | #[cfg(version("-1"))] | ^^^^ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:23:7 + --> $DIR/feature-gate-cfg-version.rs:29:7 | LL | #[cfg(version("65536"))] | ^^^^^^^^^^^^^^^^ @@ -94,14 +130,14 @@ LL | #[cfg(version("65536"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable -error: invalid version literal - --> $DIR/feature-gate-cfg-version.rs:23:15 +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:29:15 | LL | #[cfg(version("65536"))] | ^^^^^^^ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:26:7 + --> $DIR/feature-gate-cfg-version.rs:32:7 | LL | #[cfg(version("0"))] | ^^^^^^^^^^^^ @@ -109,8 +145,23 @@ LL | #[cfg(version("0"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:32:15 + | +LL | #[cfg(version("0"))] + | ^^^ + +error[E0658]: `cfg(version)` is experimental and subject to change + --> $DIR/feature-gate-cfg-version.rs:35:7 + | +LL | #[cfg(version("1.0"))] + | ^^^^^^^^^^^^^^ + | + = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information + = help: add `#![feature(cfg_version)]` to the crate attributes to enable + error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:30:7 + --> $DIR/feature-gate-cfg-version.rs:38:7 | LL | #[cfg(version("1.65536.2"))] | ^^^^^^^^^^^^^^^^^^^^ @@ -118,8 +169,29 @@ LL | #[cfg(version("1.65536.2"))] = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:38:15 + | +LL | #[cfg(version("1.65536.2"))] + | ^^^^^^^^^^^ + +error[E0658]: `cfg(version)` is experimental and subject to change + --> $DIR/feature-gate-cfg-version.rs:41:7 + | +LL | #[cfg(version("1.20.0-stable"))] + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information + = help: add `#![feature(cfg_version)]` to the crate attributes to enable + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/feature-gate-cfg-version.rs:41:15 + | +LL | #[cfg(version("1.20.0-stable"))] + | ^^^^^^^^^^^^^^^ + error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:40:18 + --> $DIR/feature-gate-cfg-version.rs:48:18 | LL | assert!(cfg!(version("1.42"))); | ^^^^^^^^^^^^^^^ @@ -127,6 +199,6 @@ LL | assert!(cfg!(version("1.42"))); = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information = help: add `#![feature(cfg_version)]` to the crate attributes to enable -error: aborting due to 16 previous errors +error: aborting due to 19 previous errors; 7 warnings emitted For more information about this error, try `rustc --explain E0658`. |