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Add an HIR pretty-printer

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This commit is contained in:
Jonas Schievink 2022-08-15 13:51:45 +02:00
parent b6d59f2bb4
commit dcbe892d7c
12 changed files with 914 additions and 203 deletions
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29
crates/hir/src/lib.rs
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@ -72,7 +72,7 @@ use itertools::Itertools;
use nameres::diagnostics::DefDiagnosticKind;
use once_cell::unsync::Lazy;
use rustc_hash::FxHashSet;
use stdx::{format_to, impl_from, never};
use stdx::{impl_from, never};
use syntax::{
ast::{self, HasAttrs as _, HasDocComments, HasName},
AstNode, AstPtr, SmolStr, SyntaxNodePtr, TextRange, T,
@ -1136,6 +1136,20 @@ impl DefWithBody {
}
}
fn id(&self) -> DefWithBodyId {
match self {
DefWithBody::Function(it) => it.id.into(),
DefWithBody::Static(it) => it.id.into(),
DefWithBody::Const(it) => it.id.into(),
}
}
/// A textual representation of the HIR of this def's body for debugging purposes.
pub fn debug_hir(self, db: &dyn HirDatabase) -> String {
let body = db.body(self.id());
body.pretty_print(db.upcast(), self.id())
}
pub fn diagnostics(self, db: &dyn HirDatabase, acc: &mut Vec<AnyDiagnostic>) {
let krate = self.module(db).id.krate();
@ -1470,19 +1484,6 @@ impl Function {
let def_map = db.crate_def_map(loc.krate(db).into());
def_map.fn_as_proc_macro(self.id).map(|id| Macro { id: id.into() })
}
/// A textual representation of the HIR of this function for debugging purposes.
pub fn debug_hir(self, db: &dyn HirDatabase) -> String {
let body = db.body(self.id.into());
let mut result = String::new();
format_to!(result, "HIR expressions in the body of `{}`:\n", self.name(db));
for (id, expr) in body.exprs.iter() {
format_to!(result, "{:?}: {:?}\n", id, expr);
}
result
}
}
// Note: logically, this belongs to `hir_ty`, but we are not using it there yet.