cargo-platform-0.1.2/.cargo_vcs_info.json0000644000000001120000000000100137430ustar { "git": { "sha1": "981508778c4fac545eda4d517b9d6ddf48ed6636" } } cargo-platform-0.1.2/Cargo.lock0000644000000030340000000000100117240ustar # This file is automatically @generated by Cargo. # It is not intended for manual editing. version = 3 [[package]] name = "cargo-platform" version = "0.1.2" dependencies = [ "serde", ] [[package]] name = "proc-macro2" version = "1.0.28" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5c7ed8b8c7b886ea3ed7dde405212185f423ab44682667c8c6dd14aa1d9f6612" dependencies = [ "unicode-xid", ] [[package]] name = "quote" version = "1.0.9" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7" dependencies = [ "proc-macro2", ] [[package]] name = "serde" version = "1.0.127" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f03b9878abf6d14e6779d3f24f07b2cfa90352cfec4acc5aab8f1ac7f146fae8" dependencies = [ "serde_derive", ] [[package]] name = "serde_derive" version = "1.0.127" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a024926d3432516606328597e0f224a51355a493b49fdd67e9209187cbe55ecc" dependencies = [ "proc-macro2", "quote", "syn", ] [[package]] name = "syn" version = "1.0.74" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1873d832550d4588c3dbc20f01361ab00bfe741048f71e3fecf145a7cc18b29c" dependencies = [ "proc-macro2", "quote", "unicode-xid", ] [[package]] name = "unicode-xid" version = "0.2.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3" cargo-platform-0.1.2/Cargo.toml0000644000000015570000000000100117570ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2018" name = "cargo-platform" version = "0.1.2" authors = ["The Cargo Project Developers"] description = "Cargo's representation of a target platform." homepage = "https://github.com/rust-lang/cargo" documentation = "https://docs.rs/cargo-platform" license = "MIT OR Apache-2.0" repository = "https://github.com/rust-lang/cargo" [dependencies.serde] version = "1.0.82" features = ["derive"] cargo-platform-0.1.2/Cargo.toml.orig000064400000000000000000000006440072674642500154640ustar 00000000000000[package] name = "cargo-platform" version = "0.1.2" authors = ["The Cargo Project Developers"] edition = "2018" license = "MIT OR Apache-2.0" homepage = "https://github.com/rust-lang/cargo" repository = "https://github.com/rust-lang/cargo" documentation = "https://docs.rs/cargo-platform" description = "Cargo's representation of a target platform." 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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. cargo-platform-0.1.2/examples/matches.rs000064400000000000000000000027720072674642500164110ustar 00000000000000//! This example demonstrates how to filter a Platform based on the current //! host target. use cargo_platform::{Cfg, Platform}; use std::process::Command; use std::str::FromStr; static EXAMPLES: &[&str] = &[ "cfg(windows)", "cfg(unix)", "cfg(target_os=\"macos\")", "cfg(target_os=\"linux\")", "cfg(any(target_arch=\"x86\", target_arch=\"x86_64\"))", ]; fn main() { let target = get_target(); let cfgs = get_cfgs(); println!("host target={} cfgs:", target); for cfg in &cfgs { println!(" {}", cfg); } let mut examples: Vec<&str> = EXAMPLES.iter().copied().collect(); examples.push(target.as_str()); for example in examples { let p = Platform::from_str(example).unwrap(); println!("{:?} matches: {:?}", example, p.matches(&target, &cfgs)); } } fn get_target() -> String { let output = Command::new("rustc") .arg("-Vv") .output() .expect("rustc failed to run"); let stdout = String::from_utf8(output.stdout).unwrap(); for line in stdout.lines() { if line.starts_with("host: ") { return String::from(&line[6..]); } } panic!("Failed to find host: {}", stdout); } fn get_cfgs() -> Vec { let output = Command::new("rustc") .arg("--print=cfg") .output() .expect("rustc failed to run"); let stdout = String::from_utf8(output.stdout).unwrap(); stdout .lines() .map(|line| Cfg::from_str(line).unwrap()) .collect() } cargo-platform-0.1.2/src/cfg.rs000064400000000000000000000227740072674642500145010ustar 00000000000000use crate::error::{ParseError, ParseErrorKind::*}; use std::fmt; use std::iter; use std::str::{self, FromStr}; /// A cfg expression. #[derive(Eq, PartialEq, Hash, Ord, PartialOrd, Clone, Debug)] pub enum CfgExpr { Not(Box), All(Vec), Any(Vec), Value(Cfg), } /// A cfg value. #[derive(Eq, PartialEq, Hash, Ord, PartialOrd, Clone, Debug)] pub enum Cfg { /// A named cfg value, like `unix`. Name(String), /// A key/value cfg pair, like `target_os = "linux"`. KeyPair(String, String), } #[derive(PartialEq)] enum Token<'a> { LeftParen, RightParen, Ident(&'a str), Comma, Equals, String(&'a str), } #[derive(Clone)] struct Tokenizer<'a> { s: iter::Peekable>, orig: &'a str, } struct Parser<'a> { t: Tokenizer<'a>, } impl FromStr for Cfg { type Err = ParseError; fn from_str(s: &str) -> Result { let mut p = Parser::new(s); let e = p.cfg()?; if let Some(rest) = p.rest() { return Err(ParseError::new( p.t.orig, UnterminatedExpression(rest.to_string()), )); } Ok(e) } } impl fmt::Display for Cfg { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { Cfg::Name(ref s) => s.fmt(f), Cfg::KeyPair(ref k, ref v) => write!(f, "{} = \"{}\"", k, v), } } } impl CfgExpr { /// Utility function to check if the key, "cfg(..)" matches the `target_cfg` pub fn matches_key(key: &str, target_cfg: &[Cfg]) -> bool { if key.starts_with("cfg(") && key.ends_with(')') { let cfg = &key[4..key.len() - 1]; CfgExpr::from_str(cfg) .ok() .map(|ce| ce.matches(target_cfg)) .unwrap_or(false) } else { false } } pub fn matches(&self, cfg: &[Cfg]) -> bool { match *self { CfgExpr::Not(ref e) => !e.matches(cfg), CfgExpr::All(ref e) => e.iter().all(|e| e.matches(cfg)), CfgExpr::Any(ref e) => e.iter().any(|e| e.matches(cfg)), CfgExpr::Value(ref e) => cfg.contains(e), } } } impl FromStr for CfgExpr { type Err = ParseError; fn from_str(s: &str) -> Result { let mut p = Parser::new(s); let e = p.expr()?; if let Some(rest) = p.rest() { return Err(ParseError::new( p.t.orig, UnterminatedExpression(rest.to_string()), )); } Ok(e) } } impl fmt::Display for CfgExpr { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { CfgExpr::Not(ref e) => write!(f, "not({})", e), CfgExpr::All(ref e) => write!(f, "all({})", CommaSep(e)), CfgExpr::Any(ref e) => write!(f, "any({})", CommaSep(e)), CfgExpr::Value(ref e) => write!(f, "{}", e), } } } struct CommaSep<'a, T>(&'a [T]); impl<'a, T: fmt::Display> fmt::Display for CommaSep<'a, T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { for (i, v) in self.0.iter().enumerate() { if i > 0 { write!(f, ", ")?; } write!(f, "{}", v)?; } Ok(()) } } impl<'a> Parser<'a> { fn new(s: &'a str) -> Parser<'a> { Parser { t: Tokenizer { s: s.char_indices().peekable(), orig: s, }, } } fn expr(&mut self) -> Result { match self.peek() { Some(Ok(Token::Ident(op @ "all"))) | Some(Ok(Token::Ident(op @ "any"))) => { self.t.next(); let mut e = Vec::new(); self.eat(&Token::LeftParen)?; while !self.r#try(&Token::RightParen) { e.push(self.expr()?); if !self.r#try(&Token::Comma) { self.eat(&Token::RightParen)?; break; } } if op == "all" { Ok(CfgExpr::All(e)) } else { Ok(CfgExpr::Any(e)) } } Some(Ok(Token::Ident("not"))) => { self.t.next(); self.eat(&Token::LeftParen)?; let e = self.expr()?; self.eat(&Token::RightParen)?; Ok(CfgExpr::Not(Box::new(e))) } Some(Ok(..)) => self.cfg().map(CfgExpr::Value), Some(Err(..)) => Err(self.t.next().unwrap().err().unwrap()), None => Err(ParseError::new( self.t.orig, IncompleteExpr("start of a cfg expression"), )), } } fn cfg(&mut self) -> Result { match self.t.next() { Some(Ok(Token::Ident(name))) => { let e = if self.r#try(&Token::Equals) { let val = match self.t.next() { Some(Ok(Token::String(s))) => s, Some(Ok(t)) => { return Err(ParseError::new( self.t.orig, UnexpectedToken { expected: "a string", found: t.classify(), }, )) } Some(Err(e)) => return Err(e), None => { return Err(ParseError::new(self.t.orig, IncompleteExpr("a string"))) } }; Cfg::KeyPair(name.to_string(), val.to_string()) } else { Cfg::Name(name.to_string()) }; Ok(e) } Some(Ok(t)) => Err(ParseError::new( self.t.orig, UnexpectedToken { expected: "identifier", found: t.classify(), }, )), Some(Err(e)) => Err(e), None => Err(ParseError::new(self.t.orig, IncompleteExpr("identifier"))), } } fn peek(&mut self) -> Option, ParseError>> { self.t.clone().next() } fn r#try(&mut self, token: &Token<'a>) -> bool { match self.peek() { Some(Ok(ref t)) if token == t => {} _ => return false, } self.t.next(); true } fn eat(&mut self, token: &Token<'a>) -> Result<(), ParseError> { match self.t.next() { Some(Ok(ref t)) if token == t => Ok(()), Some(Ok(t)) => Err(ParseError::new( self.t.orig, UnexpectedToken { expected: token.classify(), found: t.classify(), }, )), Some(Err(e)) => Err(e), None => Err(ParseError::new( self.t.orig, IncompleteExpr(token.classify()), )), } } /// Returns the rest of the input from the current location. fn rest(&self) -> Option<&str> { let mut s = self.t.s.clone(); loop { match s.next() { Some((_, ' ')) => {} Some((start, _ch)) => return Some(&self.t.orig[start..]), None => return None, } } } } impl<'a> Iterator for Tokenizer<'a> { type Item = Result, ParseError>; fn next(&mut self) -> Option, ParseError>> { loop { match self.s.next() { Some((_, ' ')) => {} Some((_, '(')) => return Some(Ok(Token::LeftParen)), Some((_, ')')) => return Some(Ok(Token::RightParen)), Some((_, ',')) => return Some(Ok(Token::Comma)), Some((_, '=')) => return Some(Ok(Token::Equals)), Some((start, '"')) => { while let Some((end, ch)) = self.s.next() { if ch == '"' { return Some(Ok(Token::String(&self.orig[start + 1..end]))); } } return Some(Err(ParseError::new(self.orig, UnterminatedString))); } Some((start, ch)) if is_ident_start(ch) => { while let Some(&(end, ch)) = self.s.peek() { if !is_ident_rest(ch) { return Some(Ok(Token::Ident(&self.orig[start..end]))); } else { self.s.next(); } } return Some(Ok(Token::Ident(&self.orig[start..]))); } Some((_, ch)) => { return Some(Err(ParseError::new(self.orig, UnexpectedChar(ch)))); } None => return None, } } } } fn is_ident_start(ch: char) -> bool { ch == '_' || ch.is_ascii_alphabetic() } fn is_ident_rest(ch: char) -> bool { is_ident_start(ch) || ch.is_ascii_digit() } impl<'a> Token<'a> { fn classify(&self) -> &'static str { match *self { Token::LeftParen => "`(`", Token::RightParen => "`)`", Token::Ident(..) => "an identifier", Token::Comma => "`,`", Token::Equals => "`=`", Token::String(..) => "a string", } } } cargo-platform-0.1.2/src/error.rs000064400000000000000000000034210072674642500150570ustar 00000000000000use std::fmt; #[derive(Debug)] pub struct ParseError { kind: ParseErrorKind, orig: String, } #[non_exhaustive] #[derive(Debug)] pub enum ParseErrorKind { UnterminatedString, UnexpectedChar(char), UnexpectedToken { expected: &'static str, found: &'static str, }, IncompleteExpr(&'static str), UnterminatedExpression(String), InvalidTarget(String), } impl fmt::Display for ParseError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!( f, "failed to parse `{}` as a cfg expression: {}", self.orig, self.kind ) } } impl fmt::Display for ParseErrorKind { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { use ParseErrorKind::*; match self { UnterminatedString => write!(f, "unterminated string in cfg"), UnexpectedChar(ch) => write!( f, "unexpected character `{}` in cfg, expected parens, a comma, \ an identifier, or a string", ch ), UnexpectedToken { expected, found } => { write!(f, "expected {}, found {}", expected, found) } IncompleteExpr(expected) => { write!(f, "expected {}, but cfg expression ended", expected) } UnterminatedExpression(s) => { write!(f, "unexpected content `{}` found after cfg expression", s) } InvalidTarget(s) => write!(f, "invalid target specifier: {}", s), } } } impl std::error::Error for ParseError {} impl ParseError { pub fn new(orig: &str, kind: ParseErrorKind) -> ParseError { ParseError { kind, orig: orig.to_string(), } } } cargo-platform-0.1.2/src/lib.rs000064400000000000000000000116700072674642500145010ustar 00000000000000//! Platform definition used by Cargo. //! //! This defines a [`Platform`] type which is used in Cargo to specify a target platform. //! There are two kinds, a named target like `x86_64-apple-darwin`, and a "cfg expression" //! like `cfg(any(target_os = "macos", target_os = "ios"))`. //! //! See `examples/matches.rs` for an example of how to match against a `Platform`. //! //! [`Platform`]: enum.Platform.html use std::fmt; use std::str::FromStr; mod cfg; mod error; pub use cfg::{Cfg, CfgExpr}; pub use error::{ParseError, ParseErrorKind}; /// Platform definition. #[derive(Eq, PartialEq, Hash, Ord, PartialOrd, Clone, Debug)] pub enum Platform { /// A named platform, like `x86_64-apple-darwin`. Name(String), /// A cfg expression, like `cfg(windows)`. Cfg(CfgExpr), } impl Platform { /// Returns whether the Platform matches the given target and cfg. /// /// The named target and cfg values should be obtained from `rustc`. pub fn matches(&self, name: &str, cfg: &[Cfg]) -> bool { match *self { Platform::Name(ref p) => p == name, Platform::Cfg(ref p) => p.matches(cfg), } } fn validate_named_platform(name: &str) -> Result<(), ParseError> { if let Some(ch) = name .chars() .find(|&c| !(c.is_alphanumeric() || c == '_' || c == '-' || c == '.')) { if name.chars().any(|c| c == '(') { return Err(ParseError::new( name, ParseErrorKind::InvalidTarget( "unexpected `(` character, cfg expressions must start with `cfg(`" .to_string(), ), )); } return Err(ParseError::new( name, ParseErrorKind::InvalidTarget(format!( "unexpected character {} in target name", ch )), )); } Ok(()) } pub fn check_cfg_attributes(&self, warnings: &mut Vec) { fn check_cfg_expr(expr: &CfgExpr, warnings: &mut Vec) { match *expr { CfgExpr::Not(ref e) => check_cfg_expr(e, warnings), CfgExpr::All(ref e) | CfgExpr::Any(ref e) => { for e in e { check_cfg_expr(e, warnings); } } CfgExpr::Value(ref e) => match e { Cfg::Name(name) => match name.as_str() { "test" | "debug_assertions" | "proc_macro" => warnings.push(format!( "Found `{}` in `target.'cfg(...)'.dependencies`. \ This value is not supported for selecting dependencies \ and will not work as expected. \ To learn more visit \ https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies", name )), _ => (), }, Cfg::KeyPair(name, _) => if name.as_str() == "feature" { warnings.push(String::from( "Found `feature = ...` in `target.'cfg(...)'.dependencies`. \ This key is not supported for selecting dependencies \ and will not work as expected. \ Use the [features] section instead: \ https://doc.rust-lang.org/cargo/reference/features.html" )) }, } } } if let Platform::Cfg(cfg) = self { check_cfg_expr(cfg, warnings); } } } impl serde::Serialize for Platform { fn serialize(&self, s: S) -> Result where S: serde::Serializer, { self.to_string().serialize(s) } } impl<'de> serde::Deserialize<'de> for Platform { fn deserialize(deserializer: D) -> Result where D: serde::Deserializer<'de>, { let s = String::deserialize(deserializer)?; FromStr::from_str(&s).map_err(serde::de::Error::custom) } } impl FromStr for Platform { type Err = ParseError; fn from_str(s: &str) -> Result { if s.starts_with("cfg(") && s.ends_with(')') { let s = &s[4..s.len() - 1]; s.parse().map(Platform::Cfg) } else { Platform::validate_named_platform(s)?; Ok(Platform::Name(s.to_string())) } } } impl fmt::Display for Platform { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { Platform::Name(ref n) => n.fmt(f), Platform::Cfg(ref e) => write!(f, "cfg({})", e), } } } cargo-platform-0.1.2/tests/test_cfg.rs000064400000000000000000000166540072674642500161130ustar 00000000000000use cargo_platform::{Cfg, CfgExpr, Platform}; use std::fmt; use std::str::FromStr; macro_rules! c { ($a:ident) => { Cfg::Name(stringify!($a).to_string()) }; ($a:ident = $e:expr) => { Cfg::KeyPair(stringify!($a).to_string(), $e.to_string()) }; } macro_rules! e { (any($($t:tt),*)) => (CfgExpr::Any(vec![$(e!($t)),*])); (all($($t:tt),*)) => (CfgExpr::All(vec![$(e!($t)),*])); (not($($t:tt)*)) => (CfgExpr::Not(Box::new(e!($($t)*)))); (($($t:tt)*)) => (e!($($t)*)); ($($t:tt)*) => (CfgExpr::Value(c!($($t)*))); } fn good(s: &str, expected: T) where T: FromStr + PartialEq + fmt::Debug, T::Err: fmt::Display, { let c = match T::from_str(s) { Ok(c) => c, Err(e) => panic!("failed to parse `{}`: {}", s, e), }; assert_eq!(c, expected); } fn bad(s: &str, err: &str) where T: FromStr + fmt::Display, T::Err: fmt::Display, { let e = match T::from_str(s) { Ok(cfg) => panic!("expected `{}` to not parse but got {}", s, cfg), Err(e) => e.to_string(), }; assert!( e.contains(err), "when parsing `{}`,\n\"{}\" not contained \ inside: {}", s, err, e ); } #[test] fn cfg_syntax() { good("foo", c!(foo)); good("_bar", c!(_bar)); good(" foo", c!(foo)); good(" foo ", c!(foo)); good(" foo = \"bar\"", c!(foo = "bar")); good("foo=\"\"", c!(foo = "")); good(" foo=\"3\" ", c!(foo = "3")); good("foo = \"3 e\"", c!(foo = "3 e")); } #[test] fn cfg_syntax_bad() { bad::("", "but cfg expression ended"); bad::(" ", "but cfg expression ended"); bad::("\t", "unexpected character"); bad::("7", "unexpected character"); bad::("=", "expected identifier"); bad::(",", "expected identifier"); bad::("(", "expected identifier"); bad::("foo (", "unexpected content `(` found after cfg expression"); bad::("bar =", "expected a string"); bad::("bar = \"", "unterminated string"); bad::( "foo, bar", "unexpected content `, bar` found after cfg expression", ); } #[test] fn cfg_expr() { good("foo", e!(foo)); good("_bar", e!(_bar)); good(" foo", e!(foo)); good(" foo ", e!(foo)); good(" foo = \"bar\"", e!(foo = "bar")); good("foo=\"\"", e!(foo = "")); good(" foo=\"3\" ", e!(foo = "3")); good("foo = \"3 e\"", e!(foo = "3 e")); good("all()", e!(all())); good("all(a)", e!(all(a))); good("all(a, b)", e!(all(a, b))); good("all(a, )", e!(all(a))); good("not(a = \"b\")", e!(not(a = "b"))); good("not(all(a))", e!(not(all(a)))); } #[test] fn cfg_expr_bad() { bad::(" ", "but cfg expression ended"); bad::(" all", "expected `(`"); bad::("all(a", "expected `)`"); bad::("not", "expected `(`"); bad::("not(a", "expected `)`"); bad::("a = ", "expected a string"); bad::("all(not())", "expected identifier"); bad::( "foo(a)", "unexpected content `(a)` found after cfg expression", ); } #[test] fn cfg_matches() { assert!(e!(foo).matches(&[c!(bar), c!(foo), c!(baz)])); assert!(e!(any(foo)).matches(&[c!(bar), c!(foo), c!(baz)])); assert!(e!(any(foo, bar)).matches(&[c!(bar)])); assert!(e!(any(foo, bar)).matches(&[c!(foo)])); assert!(e!(all(foo, bar)).matches(&[c!(foo), c!(bar)])); assert!(e!(all(foo, bar)).matches(&[c!(foo), c!(bar)])); assert!(e!(not(foo)).matches(&[c!(bar)])); assert!(e!(not(foo)).matches(&[])); assert!(e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(bar)])); assert!(e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(foo), c!(bar)])); assert!(!e!(foo).matches(&[])); assert!(!e!(foo).matches(&[c!(bar)])); assert!(!e!(foo).matches(&[c!(fo)])); assert!(!e!(any(foo)).matches(&[])); assert!(!e!(any(foo)).matches(&[c!(bar)])); assert!(!e!(any(foo)).matches(&[c!(bar), c!(baz)])); assert!(!e!(all(foo)).matches(&[c!(bar), c!(baz)])); assert!(!e!(all(foo, bar)).matches(&[c!(bar)])); assert!(!e!(all(foo, bar)).matches(&[c!(foo)])); assert!(!e!(all(foo, bar)).matches(&[])); assert!(!e!(not(bar)).matches(&[c!(bar)])); assert!(!e!(not(bar)).matches(&[c!(baz), c!(bar)])); assert!(!e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(foo)])); } #[test] fn bad_target_name() { bad::( "any(cfg(unix), cfg(windows))", "failed to parse `any(cfg(unix), cfg(windows))` as a cfg expression: \ invalid target specifier: unexpected `(` character, \ cfg expressions must start with `cfg(`", ); bad::( "!foo", "failed to parse `!foo` as a cfg expression: \ invalid target specifier: unexpected character ! in target name", ); } #[test] fn round_trip_platform() { fn rt(s: &str) { let p = Platform::from_str(s).unwrap(); let s2 = p.to_string(); let p2 = Platform::from_str(&s2).unwrap(); assert_eq!(p, p2); } rt("x86_64-apple-darwin"); rt("foo"); rt("cfg(windows)"); rt("cfg(target_os = \"windows\")"); rt( "cfg(any(all(any(target_os = \"android\", target_os = \"linux\"), \ any(target_arch = \"aarch64\", target_arch = \"arm\", target_arch = \"powerpc64\", \ target_arch = \"x86\", target_arch = \"x86_64\")), \ all(target_os = \"freebsd\", target_arch = \"x86_64\")))", ); } #[test] fn check_cfg_attributes() { fn ok(s: &str) { let p = Platform::Cfg(s.parse().unwrap()); let mut warnings = Vec::new(); p.check_cfg_attributes(&mut warnings); assert!( warnings.is_empty(), "Expected no warnings but got: {:?}", warnings, ); } fn warn(s: &str, names: &[&str]) { let p = Platform::Cfg(s.parse().unwrap()); let mut warnings = Vec::new(); p.check_cfg_attributes(&mut warnings); assert_eq!( warnings.len(), names.len(), "Expecter warnings about {:?} but got {:?}", names, warnings, ); for (name, warning) in names.iter().zip(warnings.iter()) { assert!( warning.contains(name), "Expected warning about '{}' but got: {}", name, warning, ); } } ok("unix"); ok("windows"); ok("any(not(unix), windows)"); ok("foo"); ok("target_arch = \"abc\""); ok("target_feature = \"abc\""); ok("target_os = \"abc\""); ok("target_family = \"abc\""); ok("target_env = \"abc\""); ok("target_endian = \"abc\""); ok("target_pointer_width = \"abc\""); ok("target_vendor = \"abc\""); ok("bar = \"def\""); warn("test", &["test"]); warn("debug_assertions", &["debug_assertions"]); warn("proc_macro", &["proc_macro"]); warn("feature = \"abc\"", &["feature"]); warn("any(not(debug_assertions), windows)", &["debug_assertions"]); warn( "any(not(feature = \"def\"), target_arch = \"abc\")", &["feature"], ); warn( "any(not(target_os = \"windows\"), proc_macro)", &["proc_macro"], ); warn( "any(not(feature = \"windows\"), proc_macro)", &["feature", "proc_macro"], ); warn( "all(not(debug_assertions), any(windows, proc_macro))", &["debug_assertions", "proc_macro"], ); }