ufcs with annot in position 1 and 2

Author: nikomatsakis

src/test/ui/nll/user-annotations/method-ufcs-1.rs

@@ -0,0 +1,75 @@
+// 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.
+
+// Unit test for the "user substitutions" that are annotated on each
+// node.
+
+#![feature(nll)]
+
+trait Bazoom<T>: Sized {
+    fn method<U>(self, arg: T, arg2: U) { }
+}
+
+impl<T, U> Bazoom<U> for T {
+}
+
+fn annot_underscore() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <_ as Bazoom<_>>::method::<_>(&a, b, c); // OK
+}
+
+fn annot_reference_any_lifetime() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <&u32 as Bazoom<_>>::method(&a, b, c); // OK
+}
+
+fn annot_reference_static_lifetime() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    let x = <&'static u32 as Bazoom<_>>::method;
+    x(&a, b, c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <&'a u32 as Bazoom<_>>::method(&a, b, c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime_ok<'a>(a: &'a u32) {
+    let b = 44;
+    let c = 66;
+    <&'a u32 as Bazoom<_>>::method(&a, b, c);
+}
+
+fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
+    let a = 22;
+    let b = 44;
+    let _closure = || {
+        let c = 66;
+        <&'a u32 as Bazoom<_>>::method(&a, b, c); //~ ERROR
+    };
+}
+
+fn annot_reference_named_lifetime_in_closure_ok<'a>(a: &'a u32) {
+    let b = 44;
+    let c = 66;
+    let _closure = || {
+        <&'a u32 as Bazoom<_>>::method(&a, b, c);
+    };
+}
+
+fn main() { }

src/test/ui/nll/user-annotations/method-ufcs-1.stderr

@@ -0,0 +1,45 @@
+error[E0597]: `a` does not live long enough
+  --> $DIR/method-ufcs-1.rs:42:7
+   |
+LL |     x(&a, b, c); //~ ERROR
+   |       ^^ borrowed value does not live long enough
+LL | }
+   | - `a` dropped here while still borrowed
+   |
+   = note: borrowed value must be valid for the static lifetime...
+
+error[E0597]: `a` does not live long enough
+  --> $DIR/method-ufcs-1.rs:49:36
+   |
+LL |     <&'a u32 as Bazoom<_>>::method(&a, b, c); //~ ERROR
+   |                                    ^^ borrowed value does not live long enough
+LL | }
+   | - `a` dropped here while still borrowed
+   |
+note: borrowed value must be valid for the lifetime 'a as defined on the function body at 45:35...
+  --> $DIR/method-ufcs-1.rs:45:35
+   |
+LL | fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
+   |                                   ^^
+
+error[E0597]: `a` does not live long enough
+  --> $DIR/method-ufcs-1.rs:63:41
+   |
+LL |     let _closure = || {
+   |                    -- value captured here
+LL |         let c = 66;
+LL |         <&'a u32 as Bazoom<_>>::method(&a, b, c); //~ ERROR
+   |                                         ^ borrowed value does not live long enough
+LL |     };
+LL | }
+   | - `a` dropped here while still borrowed
+   |
+note: borrowed value must be valid for the lifetime 'a as defined on the function body at 58:46...
+  --> $DIR/method-ufcs-1.rs:58:46
+   |
+LL | fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
+   |                                              ^^
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0597`.

src/test/ui/nll/user-annotations/method-ufcs-2.rs

@@ -0,0 +1,75 @@
+// 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.
+
+// Unit test for the "user substitutions" that are annotated on each
+// node.
+
+#![feature(nll)]
+
+trait Bazoom<T>: Sized {
+    fn method<U>(self, arg: T, arg2: U) { }
+}
+
+impl<T, U> Bazoom<U> for T {
+}
+
+fn annot_underscore() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <_ as Bazoom<_>>::method(a, &b, c); // OK
+}
+
+fn annot_reference_any_lifetime() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <_ as Bazoom<&u32>>::method(a, &b, c); // OK
+}
+
+fn annot_reference_static_lifetime() {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    let x = <&'static u32 as Bazoom<_>>::method;
+    x(&a, b, c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
+    let a = 22;
+    let b = 44;
+    let c = 66;
+    <_ as Bazoom<&'a u32>>::method(a, &b, c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime_ok<'a>(b: &'a u32) {
+    let a = 44;
+    let c = 66;
+    <_ as Bazoom<&'a u32>>::method(a, &b, c);
+}
+
+fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
+    let a = 22;
+    let b = 44;
+    let _closure = || {
+        let c = 66;
+        <_ as Bazoom<&'a u32>>::method(a, &b, c); //~ ERROR
+    };
+}
+
+fn annot_reference_named_lifetime_in_closure_ok<'a>(b: &'a u32) {
+    let a = 44;
+    let c = 66;
+    let _closure = || {
+        <_ as Bazoom<&'a u32>>::method(a, &b, c);
+    };
+}
+
+fn main() { }

src/test/ui/nll/user-annotations/method-ufcs-2.stderr

@@ -0,0 +1,45 @@
+error[E0597]: `a` does not live long enough
+  --> $DIR/method-ufcs-2.rs:42:7
+   |
+LL |     x(&a, b, c); //~ ERROR
+   |       ^^ borrowed value does not live long enough
+LL | }
+   | - `a` dropped here while still borrowed
+   |
+   = note: borrowed value must be valid for the static lifetime...
+
+error[E0597]: `b` does not live long enough
+  --> $DIR/method-ufcs-2.rs:49:39
+   |
+LL |     <_ as Bazoom<&'a u32>>::method(a, &b, c); //~ ERROR
+   |                                       ^^ borrowed value does not live long enough
+LL | }
+   | - `b` dropped here while still borrowed
+   |
+note: borrowed value must be valid for the lifetime 'a as defined on the function body at 45:35...
+  --> $DIR/method-ufcs-2.rs:45:35
+   |
+LL | fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
+   |                                   ^^
+
+error[E0597]: `b` does not live long enough
+  --> $DIR/method-ufcs-2.rs:63:44
+   |
+LL |     let _closure = || {
+   |                    -- value captured here
+LL |         let c = 66;
+LL |         <_ as Bazoom<&'a u32>>::method(a, &b, c); //~ ERROR
+   |                                            ^ borrowed value does not live long enough
+LL |     };
+LL | }
+   | - `b` dropped here while still borrowed
+   |
+note: borrowed value must be valid for the lifetime 'a as defined on the function body at 58:46...
+  --> $DIR/method-ufcs-2.rs:58:46
+   |
+LL | fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
+   |                                              ^^
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0597`.