4 files changed, 72 insertions, 53 deletions

diff --git a/crates/ra_project_model/Cargo.toml b/crates/ra_project_model/Cargo.toml
index 827eb7e28..99adea8e4 100644
--- a/crates/ra_project_model/Cargo.toml
+++ b/crates/ra_project_model/Cargo.toml
@@ -12,7 +12,7 @@ doctest = false
 log = "0.4.8"
 rustc-hash = "1.1.0"
 
-cargo_metadata = "0.10.0"
+cargo_metadata = "0.11.1"
 
 ra_arena = { path = "../ra_arena" }
 ra_cfg = { path = "../ra_cfg" }
diff --git a/crates/ra_project_model/src/cargo_workspace.rs b/crates/ra_project_model/src/cargo_workspace.rs
index fb88e0f06..10513542e 100644
--- a/crates/ra_project_model/src/cargo_workspace.rs
+++ b/crates/ra_project_model/src/cargo_workspace.rs
@@ -144,12 +144,15 @@ impl CargoWorkspace {
         meta.manifest_path(cargo_toml.to_path_buf());
         if cargo_features.all_features {
             meta.features(CargoOpt::AllFeatures);
-        } else if cargo_features.no_default_features {
-            // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures`
-            // https://github.com/oli-obk/cargo_metadata/issues/79
-            meta.features(CargoOpt::NoDefaultFeatures);
-        } else if !cargo_features.features.is_empty() {
-            meta.features(CargoOpt::SomeFeatures(cargo_features.features.clone()));
+        } else {
+            if cargo_features.no_default_features {
+                // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures`
+                // https://github.com/oli-obk/cargo_metadata/issues/79
+                meta.features(CargoOpt::NoDefaultFeatures);
+            }
+            if !cargo_features.features.is_empty() {
+                meta.features(CargoOpt::SomeFeatures(cargo_features.features.clone()));
+            }
         }
         if let Some(parent) = cargo_toml.parent() {
             meta.current_dir(parent.to_path_buf());
@@ -289,12 +292,16 @@ pub fn load_extern_resources(
     cmd.args(&["check", "--message-format=json", "--manifest-path"]).arg(cargo_toml);
     if cargo_features.all_features {
         cmd.arg("--all-features");
-    } else if cargo_features.no_default_features {
-        // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures`
-        // https://github.com/oli-obk/cargo_metadata/issues/79
-        cmd.arg("--no-default-features");
     } else {
-        cmd.args(&cargo_features.features);
+        if cargo_features.no_default_features {
+            // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures`
+            // https://github.com/oli-obk/cargo_metadata/issues/79
+            cmd.arg("--no-default-features");
+        }
+        if !cargo_features.features.is_empty() {
+            cmd.arg("--features");
+            cmd.arg(cargo_features.features.join(" "));
+        }
     }
 
     let output = cmd.output()?;
diff --git a/crates/ra_project_model/src/cfg_flag.rs b/crates/ra_project_model/src/cfg_flag.rs
index 1bc5d4832..bd50056c6 100644
--- a/crates/ra_project_model/src/cfg_flag.rs
+++ b/crates/ra_project_model/src/cfg_flag.rs
@@ -4,7 +4,7 @@
 use std::str::FromStr;
 
 use ra_cfg::CfgOptions;
-use stdx::split_delim;
+use stdx::split_once;
 
 #[derive(Clone, Eq, PartialEq, Debug)]
 pub enum CfgFlag {
@@ -15,7 +15,7 @@ pub enum CfgFlag {
 impl FromStr for CfgFlag {
     type Err = String;
     fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let res = match split_delim(s, '=') {
+        let res = match split_once(s, '=') {
             Some((key, value)) => {
                 if !(value.starts_with('"') && value.ends_with('"')) {
                     return Err(format!("Invalid cfg ({:?}), value should be in quotes", s));
diff --git a/crates/ra_project_model/src/sysroot.rs b/crates/ra_project_model/src/sysroot.rs
index 8a92acea5..a10ade375 100644
--- a/crates/ra_project_model/src/sysroot.rs
+++ b/crates/ra_project_model/src/sysroot.rs
@@ -54,6 +54,8 @@ impl Sysroot {
         let src = get_or_install_rust_src(cargo_toml)?;
         let mut sysroot = Sysroot { crates: Arena::default() };
         for name in SYSROOT_CRATES.trim().lines() {
+            // FIXME: remove this path when 1.47 comes out
+            // https://github.com/rust-lang/rust/pull/73265
             let root = src.join(format!("lib{}", name)).join("lib.rs");
             if root.exists() {
                 sysroot.crates.alloc(SysrootCrateData {
@@ -61,6 +63,15 @@ impl Sysroot {
                     root,
                     deps: Vec::new(),
                 });
+            } else {
+                let root = src.join(name).join("src/lib.rs");
+                if root.exists() {
+                    sysroot.crates.alloc(SysrootCrateData {
+                        name: name.into(),
+                        root,
+                        deps: Vec::new(),
+                    });
+                }
             }
         }
         if let Some(std) = sysroot.std() {
@@ -94,23 +105,38 @@ fn get_or_install_rust_src(cargo_toml: &AbsPath) -> Result<AbsPathBuf> {
     rustc.current_dir(current_dir).args(&["--print", "sysroot"]);
     let stdout = utf8_stdout(rustc)?;
     let sysroot_path = AbsPath::assert(Path::new(stdout.trim()));
-    let src_path = sysroot_path.join("lib/rustlib/src/rust/src");
-
-    if !src_path.exists() {
+    let mut src = get_rust_src(sysroot_path);
+    if src.is_none() {
         let mut rustup = Command::new(ra_toolchain::rustup());
         rustup.current_dir(current_dir).args(&["component", "add", "rust-src"]);
         utf8_stdout(rustup)?;
+        src = get_rust_src(sysroot_path);
     }
-    if !src_path.exists() {
-        bail!(
+    match src {
+        Some(r) => Ok(r),
+        None => bail!(
             "can't load standard library from sysroot\n\
             {}\n\
             (discovered via `rustc --print sysroot`)\n\
             try running `rustup component add rust-src` or set `RUST_SRC_PATH`",
-            src_path.display(),
-        )
+            sysroot_path.display(),
+        ),
+    }
+}
+
+fn get_rust_src(sysroot_path: &AbsPath) -> Option<AbsPathBuf> {
+    // try the new path first since the old one still exists
+    let mut src_path = sysroot_path.join("lib/rustlib/src/rust/library");
+    if !src_path.exists() {
+        // FIXME: remove this path when 1.47 comes out
+        // https://github.com/rust-lang/rust/pull/73265
+        src_path = sysroot_path.join("lib/rustlib/src/rust/src");
+    }
+    if src_path.exists() {
+        Some(src_path)
+    } else {
+        None
     }
-    Ok(src_path)
 }
 
 impl SysrootCrateData {
@@ -120,42 +146,28 @@ impl SysrootCrateData {
 }
 
 const SYSROOT_CRATES: &str = "
-std
-core
 alloc
-collections
-libc
-proc_macro
-rustc_unicode
-std_unicode
-test
-alloc_jemalloc
-alloc_system
-compiler_builtins
-getopts
-panic_unwind
+core
 panic_abort
-rand
+panic_unwind
+proc_macro
+profiler_builtins
+rtstartup
+std
+stdarch
 term
-unwind
-build_helper
-rustc_asan
-rustc_lsan
-rustc_msan
-rustc_tsan
-syntax";
+test
+unwind";
 
 const STD_DEPS: &str = "
 alloc
-alloc_jemalloc
-alloc_system
 core
 panic_abort
-rand
-compiler_builtins
-unwind
-rustc_asan
-rustc_lsan
-rustc_msan
-rustc_tsan
-build_helper";
+panic_unwind
+profiler_builtins
+rtstartup
+proc_macro
+stdarch
+term
+test
+unwind";