Update examples (#1856)

Co-authored-by: Yuki Okushi <jtitor@2k36.org>

examples/rustc-driver-example.rs

@@ -9,12 +9,11 @@ extern crate rustc_interface;
 extern crate rustc_session;
 extern crate rustc_span;
 
-use std::{path, process, str};
+use std::{path, process, str, sync::Arc};
 
 use rustc_errors::registry;
-use rustc_hash::{FxHashMap, FxHashSet};
+use rustc_hash::FxHashMap;
-use rustc_session::config::{self, CheckCfg};
+use rustc_session::config;
-use rustc_span::source_map;
 
 fn main() {
     let out = process::Command::new("rustc")
@@ -30,10 +29,10 @@ fn main() {
             ..config::Options::default()
         },
         // cfg! configuration in addition to the default ones
-        crate_cfg: FxHashSet::default(), // FxHashSet<(String, Option<String>)>
+        crate_cfg: Vec::new(),       // FxHashSet<(String, Option<String>)>
-        crate_check_cfg: CheckCfg::default(), // CheckCfg
+        crate_check_cfg: Vec::new(), // CheckCfg
         input: config::Input::Str {
-            name: source_map::FileName::Custom("main.rs".into()),
+            name: rustc_span::FileName::Custom("main.rs".into()),
             input: r#"
 static HELLO: &str = "Hello, world!";
 fn main() {
@@ -61,10 +60,12 @@ fn main() {
         // The second parameter is local providers and the third parameter is external providers.
         override_queries: None, // Option<fn(&Session, &mut ty::query::Providers<'_>, &mut ty::query::Providers<'_>)>
         // Registry of diagnostics codes.
-        registry: registry::Registry::new(&rustc_error_codes::DIAGNOSTICS),
+        registry: registry::Registry::new(rustc_error_codes::DIAGNOSTICS),
         make_codegen_backend: None,
         expanded_args: Vec::new(),
         ice_file: None,
+        hash_untracked_state: None,
+        using_internal_features: Arc::default(),
     };
     rustc_interface::run_compiler(config, |compiler| {
         compiler.enter(|queries| {

examples/rustc-driver-getting-diagnostics.rs

@@ -10,27 +10,12 @@ extern crate rustc_session;
 extern crate rustc_span;
 
 use rustc_errors::registry;
-use rustc_session::config::{self, CheckCfg};
+use rustc_session::config;
-use rustc_span::source_map;
-use std::io;
 use std::path;
 use std::process;
 use std::str;
 use std::sync;
 
-// Buffer diagnostics in a Vec<u8>.
-#[derive(Clone)]
-pub struct DiagnosticSink(sync::Arc<sync::Mutex<Vec<u8>>>);
-
-impl io::Write for DiagnosticSink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.0.lock().unwrap().write(buf)
-    }
-    fn flush(&mut self) -> io::Result<()> {
-        self.0.lock().unwrap().flush()
-    }
-}
-
 fn main() {
     let out = process::Command::new("rustc")
         .arg("--print=sysroot")
@@ -53,7 +38,7 @@ fn main() {
         },
         // This program contains a type error.
         input: config::Input::Str {
-            name: source_map::FileName::Custom("main.rs".into()),
+            name: rustc_span::FileName::Custom("main.rs".into()),
             input: "
 fn main() {
     let x: &str = 1;
@@ -61,8 +46,8 @@ fn main() {
 "
             .into(),
         },
-        crate_cfg: rustc_hash::FxHashSet::default(),
+        crate_cfg: Vec::new(),
-        crate_check_cfg: CheckCfg::default(),
+        crate_check_cfg: Vec::new(),
         output_dir: None,
         output_file: None,
         file_loader: None,
@@ -71,10 +56,12 @@ fn main() {
         parse_sess_created: None,
         register_lints: None,
         override_queries: None,
-        registry: registry::Registry::new(&rustc_error_codes::DIAGNOSTICS),
+        registry: registry::Registry::new(rustc_error_codes::DIAGNOSTICS),
         make_codegen_backend: None,
         expanded_args: Vec::new(),
         ice_file: None,
+        hash_untracked_state: None,
+        using_internal_features: sync::Arc::default(),
     };
     rustc_interface::run_compiler(config, |compiler| {
         compiler.enter(|queries| {

examples/rustc-driver-interacting-with-the-ast.rs

@@ -10,12 +10,11 @@ extern crate rustc_interface;
 extern crate rustc_session;
 extern crate rustc_span;
 
-use std::{path, process, str};
+use std::{path, process, str, sync::Arc};
 
 use rustc_ast_pretty::pprust::item_to_string;
 use rustc_errors::registry;
-use rustc_session::config::{self, CheckCfg};
+use rustc_session::config;
-use rustc_span::source_map;
 
 fn main() {
     let out = process::Command::new("rustc")
@@ -30,7 +29,7 @@ fn main() {
             ..config::Options::default()
         },
         input: config::Input::Str {
-            name: source_map::FileName::Custom("main.rs".to_string()),
+            name: rustc_span::FileName::Custom("main.rs".to_string()),
             input: r#"
 fn main() {
     let message = "Hello, World!";
@@ -39,8 +38,8 @@ fn main() {
 "#
             .to_string(),
         },
-        crate_cfg: rustc_hash::FxHashSet::default(),
+        crate_cfg: Vec::new(),
-        crate_check_cfg: CheckCfg::default(),
+        crate_check_cfg: Vec::new(),
         output_dir: None,
         output_file: None,
         file_loader: None,
@@ -50,9 +49,11 @@ fn main() {
         register_lints: None,
         override_queries: None,
         make_codegen_backend: None,
-        registry: registry::Registry::new(&rustc_error_codes::DIAGNOSTICS),
+        registry: registry::Registry::new(rustc_error_codes::DIAGNOSTICS),
         expanded_args: Vec::new(),
         ice_file: None,
+        hash_untracked_state: None,
+        using_internal_features: Arc::default(),
     };
     rustc_interface::run_compiler(config, |compiler| {
         compiler.enter(|queries| {

src/rustc-driver-getting-diagnostics.md

@@ -7,7 +7,7 @@
 To get diagnostics from the compiler,
 configure `rustc_interface::Config` to output diagnostic to a buffer,
 and run `TyCtxt.analysis`. The following was tested
-with <!-- date-check: oct 2023 --> `nightly-2023-10-03`:
+with <!-- date-check: jan 2024 --> `nightly-2024-01-19`:
 
 ```rust
 {{#include ../examples/rustc-driver-getting-diagnostics.rs}}

src/rustc-driver-interacting-with-the-ast.md

@@ -5,7 +5,7 @@
 ## Getting the type of an expression
 
 To get the type of an expression, use the `global_ctxt` to get a `TyCtxt`.
-The following was tested with <!-- date-check: oct 2023 --> `nightly-2023-10-03`:
+The following was tested with <!-- date-check: jan 2024 --> `nightly-2024-01-19`:
 
 ```rust
 {{#include ../examples/rustc-driver-interacting-with-the-ast.rs}}