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update rustc-{driver,interface} examples

This commit is contained in:
Tshepang Mbambo 2025-03-29 23:52:57 +02:00
parent 01bbdec63c
commit 550dc9b31b
4 changed files with 12 additions and 13 deletions
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11
examples/rustc-driver-example.rs
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@ -1,4 +1,4 @@
// Tested with nightly-2025-03-08 // Tested with nightly-2025-03-28
#![feature(rustc_private)] #![feature(rustc_private)]
@ -20,7 +20,7 @@ use std::path::Path;
use std::sync::Arc; use std::sync::Arc;
use rustc_ast_pretty::pprust::item_to_string; use rustc_ast_pretty::pprust::item_to_string;
use rustc_driver::{Compilation, run_compiler}; use rustc_driver::{run_compiler, Compilation};
use rustc_interface::interface::{Compiler, Config}; use rustc_interface::interface::{Compiler, Config};
use rustc_middle::ty::TyCtxt; use rustc_middle::ty::TyCtxt;
@ -71,13 +71,12 @@ impl rustc_driver::Callbacks for MyCallbacks {
fn after_analysis(&mut self, _compiler: &Compiler, tcx: TyCtxt<'_>) -> Compilation { fn after_analysis(&mut self, _compiler: &Compiler, tcx: TyCtxt<'_>) -> Compilation {
// Analyze the program and inspect the types of definitions. // Analyze the program and inspect the types of definitions.
for id in tcx.hir_free_items(){ for id in tcx.hir_free_items() {
let item = &tcx.hir_item(id); let item = &tcx.hir_item(id);
match item.kind { match item.kind {
rustc_hir::ItemKind::Static(_, _, _) | rustc_hir::ItemKind::Fn { .. } => { rustc_hir::ItemKind::Static(ident, ..) | rustc_hir::ItemKind::Fn { ident, .. } => {
let name = item.ident;
let ty = tcx.type_of(item.hir_id().owner.def_id); let ty = tcx.type_of(item.hir_id().owner.def_id);
println!("{name:?}:\t{ty:?}") println!("{ident:?}:\t{ty:?}")
} }
_ => (), _ => (),
} }

4
examples/rustc-driver-interacting-with-the-ast.rs
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@ -1,4 +1,4 @@
// Tested with nightly-2025-03-08 // Tested with nightly-2025-03-28
#![feature(rustc_private)] #![feature(rustc_private)]
@ -71,7 +71,7 @@ impl rustc_driver::Callbacks for MyCallbacks {
fn after_analysis(&mut self, _compiler: &Compiler, tcx: TyCtxt<'_>) -> Compilation { fn after_analysis(&mut self, _compiler: &Compiler, tcx: TyCtxt<'_>) -> Compilation {
// Iterate over the top-level items in the crate, looking for the main function. // Iterate over the top-level items in the crate, looking for the main function.
for id in tcx.hir_free_items(){ for id in tcx.hir_free_items() {
let item = &tcx.hir_item(id); let item = &tcx.hir_item(id);
// Use pattern-matching to find a specific node inside the main function. // Use pattern-matching to find a specific node inside the main function.
if let rustc_hir::ItemKind::Fn { body, .. } = item.kind { if let rustc_hir::ItemKind::Fn { body, .. } = item.kind {

8
examples/rustc-interface-example.rs
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@ -1,4 +1,4 @@
// Tested with nightly-2025-03-08 // Tested with nightly-2025-03-28
#![feature(rustc_private)] #![feature(rustc_private)]
@ -67,10 +67,10 @@ fn main() {
for id in tcx.hir_free_items() { for id in tcx.hir_free_items() {
let item = tcx.hir_item(id); let item = tcx.hir_item(id);
match item.kind { match item.kind {
rustc_hir::ItemKind::Static(_, _, _) | rustc_hir::ItemKind::Fn { .. } => { rustc_hir::ItemKind::Static(ident, ..)
let name = item.ident; | rustc_hir::ItemKind::Fn { ident, .. } => {
let ty = tcx.type_of(item.hir_id().owner.def_id); let ty = tcx.type_of(item.hir_id().owner.def_id);
println!("{name:?}:\t{ty:?}") println!("{ident:?}:\t{ty:?}")
} }
_ => (), _ => (),
} }

2
examples/rustc-interface-getting-diagnostics.rs
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@ -1,4 +1,4 @@
// Tested with nightly-2025-03-08 // Tested with nightly-2025-03-28
#![feature(rustc_private)] #![feature(rustc_private)]