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5766: Hacky support for fn-like proc macros r=matklad a=jonas-schievink
It turns out that this is all that's needed to get something like this working:
```rust
#[proc_macro]
pub fn function_like_macro(_args: TokenStream) -> TokenStream {
TokenStream::from_str("fn fn_success() {}").unwrap()
}
```
```rust
function_like_macro!();
fn f() {
fn_success();
}
```
The drawback is that it also makes this work, because there is no distinction between different proc macro kinds in the rest of r-a:
```rust
#[derive(function_like_macro)]
struct S {}
fn f() {
fn_success();
}
```
Another issue is that it seems to panic, and then panic, when using this on the rustc code base, due to some issue in the inscrutable proc macro bridge code.
Co-authored-by: Jonas Schievink <[email protected]>
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Conjecture: it's impossible to use hir::Path *correctly* from an IDE.
I am not entirely sure about this, and we might need to add it back at
some point, but I have to arguments that convince me that we probably
won't:
* `hir::Path` has to know about hygiene, which an IDE can't set up
properly.
* `hir::Path` lacks identity, but you actually have to know identity
to resolve it correctly
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Long term, we probably should make hir::Path private to hir.
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This exports all 3 kinds of proc macros and is useful for testing
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5347: Chalk writer integration r=flodiebold a=detrumi
~~This adds a `rust-analyzer dump-chalk` command, similar to analysis-stats, which writes out the whole chalk progam (see [chalk#365](https://github.com/rust-lang/chalk/issues/365) for more info about the .chalk writer)~~
Write out chalk programs in debug output if chalk debugging is active (using `CHALK_DEBUG`).
Example output:
```
[DEBUG ra_hir_ty::traits] solve(UCanonical { canonical: Canonical { value: InEnvironment { environment: Env([]), goal: Implemented(SeparatorTraitRef(?)) }, binders: [] }, universes: 1 }) => None
[INFO ra_hir_ty::traits] trait_solve_query(Implements(fn min<?0.0>(?0.0, ?0.0) -> ?0.0: Deref))
[DEBUG ra_hir_ty::traits] solve goal: UCanonical { canonical: Canonical { value: InEnvironment { environment: Env([]), goal: Implemented(SeparatorTraitRef(?)) }, binders: [U0 with kind type] }, universes: 1 }
[DEBUG ra_hir_ty::traits::chalk] impls_for_trait Deref
[DEBUG ra_hir_ty::traits::chalk] impls_for_trait returned 0 impls
[DEBUG ra_hir_ty::traits::chalk] trait_datum Ord
[DEBUG ra_hir_ty::traits::chalk] trait Ord = Name(Text("Ord"))
[DEBUG ra_hir_ty::traits] chalk program:
#[upstream]
#[non_enumerable]
#[object_safe]
trait Ord {}
#[upstream]
#[non_enumerable]
#[object_safe]
#[lang(sized)]
trait Sized {}
fn fn_0<_1_0>(arg_0: _1_0, arg_1: _1_0) -> _1_0
where
_1_0: Ord;
#[upstream]
#[non_enumerable]
#[object_safe]
trait Deref {
type Assoc_1829: Sized;
}
[DEBUG ra_hir_ty::traits] solve(UCanonical { canonical: Canonical { value: InEnvironment { environment: Env([]), goal: Implemented(SeparatorTraitRef(?)) }, binders: [U0 with kind type] }, universes: 1 }) => None
[INFO ra_hir_ty::traits] trait_solve_query(Implements(?0.0: Ord))
```
Co-authored-by: Wilco Kusee <[email protected]>
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5753: Remove Hygiene from completion
r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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5746: Structured search replace now handles UFCS calls to trait methods r=matklad a=davidlattimore
Co-authored-by: David Lattimore <[email protected]>
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5732: Consider only IdentPats for param name hints r=matklad a=SomeoneToIgnore
Closes https://github.com/rust-analyzer/rust-analyzer/issues/4960
Avoid displaying any param name hints like
<img width="590" alt="image" src="https://user-images.githubusercontent.com/2690773/90071461-47a4ad80-dcfe-11ea-9330-fb4f4e2d1b71.png">
Those hints seem to occupy plenty of space for no apparent benefit, with their destructured content not used in the code with the function hints.
I'm not entirely sure if we should show something else than `IdentPat`s, since I don't understand some of the `Pat` variant meanings:
https://github.com/rust-analyzer/rust-analyzer/blob/a1c187eef3ba08076aedb5154929f7eda8d1b424/crates/syntax/src/ast/generated/nodes.rs#L1336-L1352
Co-authored-by: Kirill Bulatov <[email protected]>
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5744: Rename ra_project_model -> project_model r=matklad a=pksunkara
Co-authored-by: Pavan Kumar Sunkara <[email protected]>
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