diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/librustc/infer/error_reporting/mod.rs | 288 | ||||
| -rw-r--r-- | src/librustc/infer/error_reporting/note.rs | 2 | ||||
| -rw-r--r-- | src/librustc/ty/mod.rs | 2 | ||||
| -rw-r--r-- | src/librustc_errors/diagnostic.rs | 72 | ||||
| -rw-r--r-- | src/librustc_errors/diagnostic_builder.rs | 10 | ||||
| -rw-r--r-- | src/librustc_errors/lib.rs | 2 | ||||
| -rw-r--r-- | src/test/ui/lifetime-errors/ex2a-push-one-existing-name.stderr | 4 | ||||
| -rw-r--r-- | src/test/ui/lifetime-errors/ex2b-push-no-existing-names.stderr | 4 | ||||
| -rw-r--r-- | src/test/ui/lifetime-errors/ex2c-push-inference-variable.stderr | 2 | ||||
| -rw-r--r-- | src/test/ui/mismatched_types/abridged.rs | 61 | ||||
| -rw-r--r-- | src/test/ui/mismatched_types/abridged.stderr | 70 |
11 files changed, 485 insertions, 32 deletions
diff --git a/src/librustc/infer/error_reporting/mod.rs b/src/librustc/infer/error_reporting/mod.rs index 9fa2bc8a2a7..dcbe50de2e9 100644 --- a/src/librustc/infer/error_reporting/mod.rs +++ b/src/librustc/infer/error_reporting/mod.rs @@ -70,7 +70,7 @@ use ty::{self, TyCtxt, TypeFoldable}; use ty::{Region, Issue32330}; use ty::error::TypeError; use syntax_pos::{Pos, Span}; -use errors::DiagnosticBuilder; +use errors::{DiagnosticBuilder, DiagnosticStyledString}; mod note; @@ -365,6 +365,262 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> { } } + /// Given that `other_ty` is the same as a type argument for `name` in `sub`, populate `value` + /// highlighting `name` and every type argument that isn't at `pos` (which is `other_ty`), and + /// populate `other_value` with `other_ty`. + /// + /// ```text + /// Foo<Bar<Qux>> + /// ^^^^--------^ this is highlighted + /// | | + /// | this type argument is exactly the same as the other type, not highlighted + /// this is highlighted + /// Bar<Qux> + /// -------- this type is the same as a type argument in the other type, not highlighted + /// ``` + fn highlight_outer(&self, + mut value: &mut DiagnosticStyledString, + mut other_value: &mut DiagnosticStyledString, + name: String, + sub: &ty::subst::Substs<'tcx>, + pos: usize, + other_ty: &ty::Ty<'tcx>) { + // `value` and `other_value` hold two incomplete type representation for display. + // `name` is the path of both types being compared. `sub` + value.push_highlighted(name); + let len = sub.len(); + if len > 0 { + value.push_highlighted("<"); + } + + // Output the lifetimes fot the first type + let lifetimes = sub.regions().map(|lifetime| { + let s = format!("{}", lifetime); + if s.is_empty() { + "'_".to_string() + } else { + s + } + }).collect::<Vec<_>>().join(", "); + if !lifetimes.is_empty() { + if sub.regions().count() < len { + value.push_normal(lifetimes + &", "); + } else { + value.push_normal(lifetimes); + } + } + + // Highlight all the type arguments that aren't at `pos` and compare the type argument at + // `pos` and `other_ty`. + for (i, type_arg) in sub.types().enumerate() { + if i == pos { + let values = self.cmp(type_arg, other_ty); + value.0.extend((values.0).0); + other_value.0.extend((values.1).0); + } else { + value.push_highlighted(format!("{}", type_arg)); + } + + if len > 0 && i != len - 1 { + value.push_normal(", "); + } + //self.push_comma(&mut value, &mut other_value, len, i); + } + if len > 0 { + value.push_highlighted(">"); + } + } + + /// If `other_ty` is the same as a type argument present in `sub`, highlight `path` in `t1_out`, + /// as that is the difference to the other type. + /// + /// For the following code: + /// + /// ```norun + /// let x: Foo<Bar<Qux>> = foo::<Bar<Qux>>(); + /// ``` + /// + /// The type error output will behave in the following way: + /// + /// ```text + /// Foo<Bar<Qux>> + /// ^^^^--------^ this is highlighted + /// | | + /// | this type argument is exactly the same as the other type, not highlighted + /// this is highlighted + /// Bar<Qux> + /// -------- this type is the same as a type argument in the other type, not highlighted + /// ``` + fn cmp_type_arg(&self, + mut t1_out: &mut DiagnosticStyledString, + mut t2_out: &mut DiagnosticStyledString, + path: String, + sub: &ty::subst::Substs<'tcx>, + other_path: String, + other_ty: &ty::Ty<'tcx>) -> Option<()> { + for (i, ta) in sub.types().enumerate() { + if &ta == other_ty { + self.highlight_outer(&mut t1_out, &mut t2_out, path, sub, i, &other_ty); + return Some(()); + } + if let &ty::TyAdt(def, _) = &ta.sty { + let path_ = self.tcx.item_path_str(def.did.clone()); + if path_ == other_path { + self.highlight_outer(&mut t1_out, &mut t2_out, path, sub, i, &other_ty); + return Some(()); + } + } + } + None + } + + /// Add a `,` to the type representation only if it is appropriate. + fn push_comma(&self, + value: &mut DiagnosticStyledString, + other_value: &mut DiagnosticStyledString, + len: usize, + pos: usize) { + if len > 0 && pos != len - 1 { + value.push_normal(", "); + other_value.push_normal(", "); + } + } + + /// Compare two given types, eliding parts that are the same between them and highlighting + /// relevant differences, and return two representation of those types for highlighted printing. + fn cmp(&self, t1: ty::Ty<'tcx>, t2: ty::Ty<'tcx>) + -> (DiagnosticStyledString, DiagnosticStyledString) + { + match (&t1.sty, &t2.sty) { + (&ty::TyAdt(def1, sub1), &ty::TyAdt(def2, sub2)) => { + let mut values = (DiagnosticStyledString::new(), DiagnosticStyledString::new()); + let path1 = self.tcx.item_path_str(def1.did.clone()); + let path2 = self.tcx.item_path_str(def2.did.clone()); + if def1.did == def2.did { + // Easy case. Replace same types with `_` to shorten the output and highlight + // the differing ones. + // let x: Foo<Bar, Qux> = y::<Foo<Quz, Qux>>(); + // Foo<Bar, _> + // Foo<Quz, _> + // --- ^ type argument elided + // | + // highlighted in output + values.0.push_normal(path1); + values.1.push_normal(path2); + + // Only draw `<...>` if there're lifetime/type arguments. + let len = sub1.len(); + if len > 0 { + values.0.push_normal("<"); + values.1.push_normal("<"); + } + + fn lifetime_display(lifetime: &Region) -> String { + let s = format!("{}", lifetime); + if s.is_empty() { + "'_".to_string() + } else { + s + } + } + // At one point we'd like to elide all lifetimes here, they are irrelevant for + // all diagnostics that use this output + // + // Foo<'x, '_, Bar> + // Foo<'y, '_, Qux> + // ^^ ^^ --- type arguments are not elided + // | | + // | elided as they were the same + // not elided, they were different, but irrelevant + let lifetimes = sub1.regions().zip(sub2.regions()); + for (i, lifetimes) in lifetimes.enumerate() { + let l1 = lifetime_display(lifetimes.0); + let l2 = lifetime_display(lifetimes.1); + if l1 == l2 { + values.0.push_normal("'_"); + values.1.push_normal("'_"); + } else { + values.0.push_highlighted(l1); + values.1.push_highlighted(l2); + } + self.push_comma(&mut values.0, &mut values.1, len, i); + } + + // We're comparing two types with the same path, so we compare the type + // arguments for both. If they are the same, do not highlight and elide from the + // output. + // Foo<_, Bar> + // Foo<_, Qux> + // ^ elided type as this type argument was the same in both sides + let type_arguments = sub1.types().zip(sub2.types()); + let regions_len = sub1.regions().collect::<Vec<_>>().len(); + for (i, (ta1, ta2)) in type_arguments.enumerate() { + let i = i + regions_len; + if ta1 == ta2 { + values.0.push_normal("_"); + values.1.push_normal("_"); + } else { + let (x1, x2) = self.cmp(ta1, ta2); + (values.0).0.extend(x1.0); + (values.1).0.extend(x2.0); + } + self.push_comma(&mut values.0, &mut values.1, len, i); + } + + // Close the type argument bracket. + // Only draw `<...>` if there're lifetime/type arguments. + if len > 0 { + values.0.push_normal(">"); + values.1.push_normal(">"); + } + values + } else { + // Check for case: + // let x: Foo<Bar<Qux> = foo::<Bar<Qux>>(); + // Foo<Bar<Qux> + // ------- this type argument is exactly the same as the other type + // Bar<Qux> + if self.cmp_type_arg(&mut values.0, + &mut values.1, + path1.clone(), + sub1, + path2.clone(), + &t2).is_some() { + return values; + } + // Check for case: + // let x: Bar<Qux> = y:<Foo<Bar<Qux>>>(); + // Bar<Qux> + // Foo<Bar<Qux>> + // ------- this type argument is exactly the same as the other type + if self.cmp_type_arg(&mut values.1, + &mut values.0, + path2, + sub2, + path1, + &t1).is_some() { + return values; + } + + // We couldn't find anything in common, highlight everything. + // let x: Bar<Qux> = y::<Foo<Zar>>(); + (DiagnosticStyledString::highlighted(format!("{}", t1)), + DiagnosticStyledString::highlighted(format!("{}", t2))) + } + } + _ => { + if t1 == t2 { + // The two types are the same, elide and don't highlight. + (DiagnosticStyledString::normal("_"), DiagnosticStyledString::normal("_")) + } else { + // We couldn't find anything in common, highlight everything. + (DiagnosticStyledString::highlighted(format!("{}", t1)), + DiagnosticStyledString::highlighted(format!("{}", t2))) + } + } + } + } + pub fn note_type_err(&self, diag: &mut DiagnosticBuilder<'tcx>, cause: &ObligationCause<'tcx>, @@ -397,14 +653,14 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> { if let Some((expected, found)) = expected_found { match (terr, is_simple_error, expected == found) { - (&TypeError::Sorts(ref values), false, true) => { + (&TypeError::Sorts(ref values), false, true) => { diag.note_expected_found_extra( - &"type", &expected, &found, + &"type", expected, found, &format!(" ({})", values.expected.sort_string(self.tcx)), &format!(" ({})", values.found.sort_string(self.tcx))); } (_, false, _) => { - diag.note_expected_found(&"type", &expected, &found); + diag.note_expected_found(&"type", expected, found); } _ => (), } @@ -472,26 +728,40 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> { diag } - /// Returns a string of the form "expected `{}`, found `{}`". - fn values_str(&self, values: &ValuePairs<'tcx>) -> Option<(String, String)> { + fn values_str(&self, values: &ValuePairs<'tcx>) + -> Option<(DiagnosticStyledString, DiagnosticStyledString)> + { match *values { - infer::Types(ref exp_found) => self.expected_found_str(exp_found), + infer::Types(ref exp_found) => self.expected_found_str_ty(exp_found), infer::TraitRefs(ref exp_found) => self.expected_found_str(exp_found), infer::PolyTraitRefs(ref exp_found) => self.expected_found_str(exp_found), } } + fn expected_found_str_ty(&self, + exp_found: &ty::error::ExpectedFound<ty::Ty<'tcx>>) + -> Option<(DiagnosticStyledString, DiagnosticStyledString)> { + let exp_found = self.resolve_type_vars_if_possible(exp_found); + if exp_found.references_error() { + return None; + } + + Some(self.cmp(exp_found.expected, exp_found.found)) + } + + /// Returns a string of the form "expected `{}`, found `{}`". fn expected_found_str<T: fmt::Display + TypeFoldable<'tcx>>( &self, exp_found: &ty::error::ExpectedFound<T>) - -> Option<(String, String)> + -> Option<(DiagnosticStyledString, DiagnosticStyledString)> { let exp_found = self.resolve_type_vars_if_possible(exp_found); if exp_found.references_error() { return None; } - Some((format!("{}", exp_found.expected), format!("{}", exp_found.found))) + Some((DiagnosticStyledString::highlighted(format!("{}", exp_found.expected)), + DiagnosticStyledString::highlighted(format!("{}", exp_found.found)))) } fn report_generic_bound_failure(&self, diff --git a/src/librustc/infer/error_reporting/note.rs b/src/librustc/infer/error_reporting/note.rs index 8f8b2603dad..8b753e0d22b 100644 --- a/src/librustc/infer/error_reporting/note.rs +++ b/src/librustc/infer/error_reporting/note.rs @@ -20,6 +20,8 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> { match *origin { infer::Subtype(ref trace) => { if let Some((expected, found)) = self.values_str(&trace.values) { + let expected = expected.content(); + let found = found.content(); // FIXME: do we want a "the" here? err.span_note(trace.cause.span, &format!("...so that {} (expected {}, found {})", diff --git a/src/librustc/ty/mod.rs b/src/librustc/ty/mod.rs index 23f35d3bdd7..bbeb1f1fe5f 100644 --- a/src/librustc/ty/mod.rs +++ b/src/librustc/ty/mod.rs @@ -2241,7 +2241,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> { /// `DefId` is really just an interned def-path). /// /// Note that if `id` is not local to this crate, the result will - // be a non-local `DefPath`. + /// be a non-local `DefPath`. pub fn def_path(self, id: DefId) -> hir_map::DefPath { if id.is_local() { self.hir.def_path(id) diff --git a/src/librustc_errors/diagnostic.rs b/src/librustc_errors/diagnostic.rs index 1b77ead92de..9715ace3e2e 100644 --- a/src/librustc_errors/diagnostic.rs +++ b/src/librustc_errors/diagnostic.rs @@ -35,6 +35,46 @@ pub struct SubDiagnostic { pub render_span: Option<RenderSpan>, } +#[derive(PartialEq, Eq)] +pub struct DiagnosticStyledString(pub Vec<StringPart>); + +impl DiagnosticStyledString { + pub fn new() -> DiagnosticStyledString { + DiagnosticStyledString(vec![]) + } + pub fn push_normal<S: Into<String>>(&mut self, t: S) { + self.0.push(StringPart::Normal(t.into())); + } + pub fn push_highlighted<S: Into<String>>(&mut self, t: S) { + self.0.push(StringPart::Highlighted(t.into())); + } + pub fn normal<S: Into<String>>(t: S) -> DiagnosticStyledString { + DiagnosticStyledString(vec![StringPart::Normal(t.into())]) + } + + pub fn highlighted<S: Into<String>>(t: S) -> DiagnosticStyledString { + DiagnosticStyledString(vec![StringPart::Highlighted(t.into())]) + } + + pub fn content(&self) -> String { + self.0.iter().map(|x| x.content()).collect::<String>() + } +} + +#[derive(PartialEq, Eq)] +pub enum StringPart { + Normal(String), + Highlighted(String), +} + +impl StringPart { + pub fn content(&self) -> String { + match self { + &StringPart::Normal(ref s) | & StringPart::Highlighted(ref s) => s.to_owned() + } + } +} + impl Diagnostic { pub fn new(level: Level, message: &str) -> Self { Diagnostic::new_with_code(level, None, message) @@ -81,8 +121,8 @@ impl Diagnostic { pub fn note_expected_found(&mut self, label: &fmt::Display, - expected: &fmt::Display, - found: &fmt::Display) + expected: DiagnosticStyledString, + found: DiagnosticStyledString) -> &mut Self { self.note_expected_found_extra(label, expected, found, &"", &"") @@ -90,21 +130,29 @@ impl Diagnostic { pub fn note_expected_found_extra(&mut self, label: &fmt::Display, - expected: &fmt::Display, - found: &fmt::Display, + expected: DiagnosticStyledString, + found: DiagnosticStyledString, expected_extra: &fmt::Display, found_extra: &fmt::Display) -> &mut Self { + let mut msg: Vec<_> = vec![(format!("expected {} `", label), Style::NoStyle)]; + msg.extend(expected.0.iter() + .map(|x| match *x { + StringPart::Normal(ref s) => (s.to_owned(), Style::NoStyle), + StringPart::Highlighted(ref s) => (s.to_owned(), Style::Highlight), + })); + msg.push((format!("`{}\n", expected_extra), Style::NoStyle)); + msg.push((format!(" found {} `", label), Style::NoStyle)); + msg.extend(found.0.iter() + .map(|x| match *x { + StringPart::Normal(ref s) => (s.to_owned(), Style::NoStyle), + StringPart::Highlighted(ref s) => (s.to_owned(), Style::Highlight), + })); + msg.push((format!("`{}", found_extra), Style::NoStyle)); + // For now, just attach these as notes - self.highlighted_note(vec![ - (format!("expected {} `", label), Style::NoStyle), - (format!("{}", expected), Style::Highlight), - (format!("`{}\n", expected_extra), Style::NoStyle), - (format!(" found {} `", label), Style::NoStyle), - (format!("{}", found), Style::Highlight), - (format!("`{}", found_extra), Style::NoStyle), - ]); + self.highlighted_note(msg); self } diff --git a/src/librustc_errors/diagnostic_builder.rs b/src/librustc_errors/diagnostic_builder.rs index 7dfea6b8951..7b27f13951b 100644 --- a/src/librustc_errors/diagnostic_builder.rs +++ b/src/librustc_errors/diagnostic_builder.rs @@ -9,6 +9,8 @@ // except according to those terms. use Diagnostic; +use DiagnosticStyledString; + use Level; use Handler; use std::fmt::{self, Debug}; @@ -115,14 +117,14 @@ impl<'a> DiagnosticBuilder<'a> { forward!(pub fn note_expected_found(&mut self, label: &fmt::Display, - expected: &fmt::Display, - found: &fmt::Display) + expected: DiagnosticStyledString, + found: DiagnosticStyledString) -> &mut Self); forward!(pub fn note_expected_found_extra(&mut self, label: &fmt::Display, - expected: &fmt::Display, - found: &fmt::Display, + expected: DiagnosticStyledString, + found: DiagnosticStyledString, expected_extra: &fmt::Display, found_extra: &fmt::Display) -> &mut Self); diff --git a/src/librustc_errors/lib.rs b/src/librustc_errors/lib.rs index 2efdaa57fba..da29e354a70 100644 --- a/src/librustc_errors/lib.rs +++ b/src/librustc_errors/lib.rs @@ -203,7 +203,7 @@ impl error::Error for ExplicitBug { } } -pub use diagnostic::{Diagnostic, SubDiagnostic}; +pub use diagnostic::{Diagnostic, SubDiagnostic, DiagnosticStyledString, StringPart}; pub use diagnostic_builder::DiagnosticBuilder; /// A handler deals with errors; certain errors diff --git a/src/test/ui/lifetime-errors/ex2a-push-one-existing-name.stderr b/src/test/ui/lifetime-errors/ex2a-push-one-existing-name.stderr index 6f42a9f679a..6956a043cc6 100644 --- a/src/test/ui/lifetime-errors/ex2a-push-one-existing-name.stderr +++ b/src/test/ui/lifetime-errors/ex2a-push-one-existing-name.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types 16 | x.push(y); | ^ lifetime mismatch | - = note: expected type `Ref<'a, i32>` - found type `Ref<'_, i32>` + = note: expected type `Ref<'a, _>` + found type `Ref<'_, _>` note: the anonymous lifetime #2 defined on the body at 15:51... --> $DIR/ex2a-push-one-existing-name.rs:15:52 | diff --git a/src/test/ui/lifetime-errors/ex2b-push-no-existing-names.stderr b/src/test/ui/lifetime-errors/ex2b-push-no-existing-names.stderr index edc1c2362de..990ae65ba98 100644 --- a/src/test/ui/lifetime-errors/ex2b-push-no-existing-names.stderr +++ b/src/test/ui/lifetime-errors/ex2b-push-no-existing-names.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types 16 | x.push(y); | ^ lifetime mismatch | - = note: expected type `Ref<'_, i32>` - found type `Ref<'_, i32>` + = note: expected type `Ref<'_, _>` + found type `Ref<'_, _>` note: the anonymous lifetime #3 defined on the body at 15:43... --> $DIR/ex2b-push-no-existing-names.rs:15:44 | diff --git a/src/test/ui/lifetime-errors/ex2c-push-inference-variable.stderr b/src/test/ui/lifetime-errors/ex2c-push-inference-variable.stderr index 755b71d4a1d..82f6c71ec1c 100644 --- a/src/test/ui/lifetime-errors/ex2c-push-inference-variable.stderr +++ b/src/test/ui/lifetime-errors/ex2c-push-inference-variable.stderr @@ -27,7 +27,7 @@ note: but, the lifetime must be valid for the lifetime 'b as defined on the body 17 | | x.push(z); 18 | | } | |_^ ...ending here -note: ...so that expression is assignable (expected Ref<'b, i32>, found Ref<'_, i32>) +note: ...so that expression is assignable (expected Ref<'b, _>, found Ref<'_, _>) --> $DIR/ex2c-push-inference-variable.rs:17:12 | 17 | x.push(z); diff --git a/src/test/ui/mismatched_types/abridged.rs b/src/test/ui/mismatched_types/abridged.rs new file mode 100644 index 00000000000..c448ad955fa --- /dev/null +++ b/src/test/ui/mismatched_types/abridged.rs @@ -0,0 +1,61 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +enum Bar { + Qux, + Zar, +} + +struct Foo { + bar: usize, +} + +struct X<T1, T2> { + x: T1, + y: T2, +} + +fn a() -> Foo { + Some(Foo { bar: 1 }) +} + +fn a2() -> Foo { + Ok(Foo { bar: 1}) +} + +fn b() -> Option<Foo> { + Foo { bar: 1 } +} + +fn c() -> Result<Foo, Bar> { + Foo { bar: 1 } +} + +fn d() -> X<X<String, String>, String> { + X { + x: X { + x: "".to_string(), + y: 2, + }, + y: 3, + } +} + +fn e() -> X<X<String, String>, String> { + X { + x: X { + x: "".to_string(), + y: 2, + }, + y: "".to_string(), + } +} + +fn main() {} diff --git a/src/test/ui/mismatched_types/abridged.stderr b/src/test/ui/mismatched_types/abridged.stderr new file mode 100644 index 00000000000..c67c6113d17 --- /dev/null +++ b/src/test/ui/mismatched_types/abridged.stderr @@ -0,0 +1,70 @@ +error[E0308]: mismatched types + --> $DIR/abridged.rs:26:5 + | +26 | Some(Foo { bar: 1 }) + | ^^^^^^^^^^^^^^^^^^^^ expected struct `Foo`, found enum `std::option::Option` + | + = note: expected type `Foo` + found type `std::option::Option<Foo>` + +error[E0308]: mismatched types + --> $DIR/abridged.rs:30:5 + | +30 | Ok(Foo { bar: 1}) + | ^^^^^^^^^^^^^^^^^ expected struct `Foo`, found enum `std::result::Result` + | + = note: expected type `Foo` + found type `std::result::Result<Foo, _>` + +error[E0308]: mismatched types + --> $DIR/abridged.rs:34:5 + | +34 | Foo { bar: 1 } + | ^^^^^^^^^^^^^^ expected enum `std::option::Option`, found struct `Foo` + | + = note: expected type `std::option::Option<Foo>` + found type `Foo` + +error[E0308]: mismatched types + --> $DIR/abridged.rs:38:5 + | +38 | Foo { bar: 1 } + | ^^^^^^^^^^^^^^ expected enum `std::result::Result`, found struct `Foo` + | + = note: expected type `std::result::Result<Foo, Bar>` + found type `Foo` + +error[E0308]: mismatched types + --> $DIR/abridged.rs:42:5 + | +42 | X { + | _____^ starting here... +43 | | x: X { +44 | | x: "".to_string(), +45 | | y: 2, +46 | | }, +47 | | y: 3, +48 | | } + | |_____^ ...ending here: expected struct `std::string::String`, found integral variable + | + = note: expected type `X<X<_, std::string::String>, std::string::String>` + found type `X<X<_, {integer}>, {integer}>` + +error[E0308]: mismatched types + --> $DIR/abridged.rs:52:5 + | +52 | X { + | _____^ starting here... +53 | | x: X { +54 | | x: "".to_string(), +55 | | y: 2, +56 | | }, +57 | | y: "".to_string(), +58 | | } + | |_____^ ...ending here: expected struct `std::string::String`, found integral variable + | + = note: expected type `X<X<_, std::string::String>, _>` + found type `X<X<_, {integer}>, _>` + +error: aborting due to 6 previous errors + |