Update rustc-driver related examples#1345
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tshepang merged 1 commit intorust-lang:masterfrom May 30, 2022
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tshepang
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May 22, 2022
jyn514
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| let def_id = tcx.hir().local_def_id(item.hir_id()); // def_id identifies the main function | ||
| let ty = tcx.typeck(def_id).node_type(hir_id); | ||
| println!("{:?}: {:?}", expr, ty); // prints expr(HirId { owner: DefIndex(3), local_id: 4 }: "Hello, world!"): &'static str | ||
| println!("{:?}: {:?}", expr, ty); // prints "`rustc_hir::Expr`: `rustc_middle::ty::Ty`" |
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are you sure? that seems very strange for it to print, normally it gives details about the item itself
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It actually prints:
fn main() { let message = "Hello, world!"; println!("{}", message); }
Expr { hir_id: HirId { owner: DefId(0:3 ~ rust_out[a9df]::main), local_id: 2 }, kind: Lit(Spanned { node: Str("Hello, world!", Cooked), span: <main.rs>:1:27: 1:42 (#0) }), span: <main.rs>:1:27: 1:42 (#0) }: &str
Well, I remember I truncated the output because it's a bit long but... yeah it's quite different.
Any suggestions here? I feel it's verbose and would like to shorten if possible. Though I don't mind pasting it as-is if you think it's better :)
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tshepang
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May 24, 2022
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Updates rustc-driver related examples to the latest nightly (I forgot to update the references on #1330 :P).
cc #1344