[Experiment] Repalce ASCII compiler output with Unicode block-drawing

Author: estebank

compiler/rustc_errors/src/emitter.rs

@@ -1,10 +1,10 @@
 error[E0703]: invalid ABI: found `rust-intrinsec`
-  --> $DIR/abi-typo-unstable.rs:2:8
-   |
-LL | extern "rust-intrinsec" fn rust_intrinsic() {}
-   |        ^^^^^^^^^^^^^^^^ invalid ABI
-   |
-   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
+   ╭▸ $DIR/abi-typo-unstable.rs:2:8
+   │
+LL │ extern "rust-intrinsec" fn rust_intrinsic() {}
+   │        ━━━━━━━━━━━━━━━━ invalid ABI
+   │
+   ╰ note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
 
 error: aborting due to 1 previous error
 

compiler/rustc_parse/src/parser/tests.rs

@@ -87,10 +87,10 @@ error: fn_abi_of(test) = FnAbi {
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:15:1
-   |
-LL | fn test(_x: u8) -> bool { true }
-   | ^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:15:1
+   │
+LL │ fn test(_x: u8) -> bool { true }
+   ╰╴━━━━━━━━━━━━━━━━━━━━━━━
 
 error: fn_abi_of(TestFnPtr) = FnAbi {
            args: [
@@ -181,10 +181,10 @@ error: fn_abi_of(TestFnPtr) = FnAbi {
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:18:1
-   |
-LL | type TestFnPtr = fn(bool) -> u8;
-   | ^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:18:1
+   │
+LL │ type TestFnPtr = fn(bool) -> u8;
+   ╰╴━━━━━━━━━━━━━━
 
 error: fn_abi_of(test_generic) = FnAbi {
            args: [
@@ -257,16 +257,16 @@ error: fn_abi_of(test_generic) = FnAbi {
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:21:1
-   |
-LL | fn test_generic<T>(_x: *const T) { }
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:21:1
+   │
+LL │ fn test_generic<T>(_x: *const T) { }
+   ╰╴━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions
-  --> $DIR/debug.rs:24:1
-   |
-LL | const C: () = ();
-   | ^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:24:1
+   │
+LL │ const C: () = ();
+   ╰╴━━━━━━━━━━━
 
 error: ABIs are not compatible
        left ABI = FnAbi {
@@ -409,10 +409,10 @@ error: ABIs are not compatible
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:40:1
-   |
-LL | type TestAbiNe = (fn(u8), fn(u32));
-   | ^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:40:1
+   │
+LL │ type TestAbiNe = (fn(u8), fn(u32));
+   ╰╴━━━━━━━━━━━━━━
 
 error: ABIs are not compatible
        left ABI = FnAbi {
@@ -557,10 +557,10 @@ error: ABIs are not compatible
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:43:1
-   |
-LL | type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32]));
-   | ^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:43:1
+   │
+LL │ type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32]));
+   ╰╴━━━━━━━━━━━━━━━━━━━━
 
 error: ABIs are not compatible
        left ABI = FnAbi {
@@ -702,10 +702,10 @@ error: ABIs are not compatible
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:46:1
-   |
-LL | type TestAbiNeFloat = (fn(f32), fn(u32));
-   | ^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:46:1
+   │
+LL │ type TestAbiNeFloat = (fn(f32), fn(u32));
+   ╰╴━━━━━━━━━━━━━━━━━━━
 
 error: ABIs are not compatible
        left ABI = FnAbi {
@@ -848,25 +848,25 @@ error: ABIs are not compatible
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:50:1
-   |
-LL | type TestAbiNeSign = (fn(i32), fn(u32));
-   | ^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:50:1
+   │
+LL │ type TestAbiNeSign = (fn(i32), fn(u32));
+   ╰╴━━━━━━━━━━━━━━━━━━
 
 error[E0277]: the size for values of type `str` cannot be known at compilation time
-  --> $DIR/debug.rs:53:46
-   |
-LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str)));
-   |                                              ^^^^^^^^^^ doesn't have a size known at compile-time
-   |
-   = help: the trait `Sized` is not implemented for `str`
-   = note: only the last element of a tuple may have a dynamically sized type
+   ╭▸ $DIR/debug.rs:53:46
+   │
+LL │ type TestAbiEqNonsense = (fn((str, str)), fn((str, str)));
+   │                                              ━━━━━━━━━━ doesn't have a size known at compile-time
+   │
+   ├ help: the trait `Sized` is not implemented for `str`
+   ╰ note: only the last element of a tuple may have a dynamically sized type
 
 error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions
-  --> $DIR/debug.rs:28:5
-   |
-LL |     const C: () = ();
-   |     ^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:28:5
+   │
+LL │     const C: () = ();
+   ╰╴    ━━━━━━━━━━━
 
 error: fn_abi_of(assoc_test) = FnAbi {
            args: [
@@ -951,10 +951,10 @@ error: fn_abi_of(assoc_test) = FnAbi {
            conv: Rust,
            can_unwind: $SOME_BOOL,
        }
-  --> $DIR/debug.rs:33:5
-   |
-LL |     fn assoc_test(&self) { }
-   |     ^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/debug.rs:33:5
+   │
+LL │     fn assoc_test(&self) { }
+   ╰╴    ━━━━━━━━━━━━━━━━━━━━
 
 error: aborting due to 11 previous errors
 

tests/ui/abi/abi-typo-unstable.stderr

@@ -1,56 +1,56 @@
 error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:3:1
-   |
-LL | extern "rust-call" fn b(_i: i32) {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `i32`
+   ╭▸ $DIR/issue-22565-rust-call.rs:3:1
+   │
+LL │ extern "rust-call" fn b(_i: i32) {}
+   ╰╴━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ the trait `Tuple` is not implemented for `i32`
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:17:5
-   |
-LL |     extern "rust-call" fn bar() {}
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:17:5
+   │
+LL │     extern "rust-call" fn bar() {}
+   ╰╴    ━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:22:5
-   |
-LL |     extern "rust-call" fn a() {}
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:22:5
+   │
+LL │     extern "rust-call" fn a() {}
+   ╰╴    ━━━━━━━━━━━━━━━━━━━━━━━━━
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:7:5
-   |
-LL |     extern "rust-call" fn a();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:7:5
+   │
+LL │     extern "rust-call" fn a();
+   ╰╴    ━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:10:5
-   |
-LL |     extern "rust-call" fn b() {}
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:10:5
+   │
+LL │     extern "rust-call" fn b() {}
+   ╰╴    ━━━━━━━━━━━━━━━━━━━━━━━━━
 
 error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:27:7
-   |
-LL |     b(10);
-   |       ^^ the trait `Tuple` is not implemented for `i32`
+   ╭▸ $DIR/issue-22565-rust-call.rs:27:7
+   │
+LL │     b(10);
+   ╰╴      ━━ the trait `Tuple` is not implemented for `i32`
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:29:5
-   |
-LL |     Foo::bar();
-   |     ^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:29:5
+   │
+LL │     Foo::bar();
+   ╰╴    ━━━━━━━━━━
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:31:5
-   |
-LL |     <Foo as Tr>::a();
-   |     ^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:31:5
+   │
+LL │     <Foo as Tr>::a();
+   ╰╴    ━━━━━━━━━━━━━━━━
 
 error: functions with the "rust-call" ABI must take a single non-self tuple argument
-  --> $DIR/issue-22565-rust-call.rs:33:5
-   |
-LL |     <Foo as Tr>::b();
-   |     ^^^^^^^^^^^^^^^^
+   ╭▸ $DIR/issue-22565-rust-call.rs:33:5
+   │
+LL │     <Foo as Tr>::b();
+   ╰╴    ━━━━━━━━━━━━━━━━
 
 error: aborting due to 9 previous errors
 

tests/ui/abi/debug.stderr

@@ -1,26 +1,26 @@
 error[E0703]: invalid ABI: found `riscv-interrupt`
-  --> $DIR/riscv-discoverability-guidance.rs:17:8
-   |
-LL | extern "riscv-interrupt" fn isr() {}
-   |        ^^^^^^^^^^^^^^^^^
-   |        |
-   |        invalid ABI
-   |        help: did you mean: `"riscv-interrupt-m"`
-   |
-   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
-   = note: please use one of riscv-interrupt-m or riscv-interrupt-s for machine- or supervisor-level interrupts, respectively
+   ╭▸ $DIR/riscv-discoverability-guidance.rs:17:8
+   │
+LL │ extern "riscv-interrupt" fn isr() {}
+   │        ┯━━━━━━━━━━━━━━━━
+   │        ┆
+   │        invalid ABI
+   │        help: did you mean: `"riscv-interrupt-m"`
+   │
+   ├ note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
+   ╰ note: please use one of riscv-interrupt-m or riscv-interrupt-s for machine- or supervisor-level interrupts, respectively
 
 error[E0703]: invalid ABI: found `riscv-interrupt-u`
-  --> $DIR/riscv-discoverability-guidance.rs:23:8
-   |
-LL | extern "riscv-interrupt-u" fn isr_U() {}
-   |        ^^^^^^^^^^^^^^^^^^^
-   |        |
-   |        invalid ABI
-   |        help: did you mean: `"riscv-interrupt-m"`
-   |
-   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
-   = note: user-mode interrupt handlers have been removed from LLVM pending standardization, see: https://reviews.llvm.org/D149314
+   ╭▸ $DIR/riscv-discoverability-guidance.rs:23:8
+   │
+LL │ extern "riscv-interrupt-u" fn isr_U() {}
+   │        ┯━━━━━━━━━━━━━━━━━━
+   │        ┆
+   │        invalid ABI
+   │        help: did you mean: `"riscv-interrupt-m"`
+   │
+   ├ note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
+   ╰ note: user-mode interrupt handlers have been removed from LLVM pending standardization, see: https://reviews.llvm.org/D149314
 
 error: aborting due to 2 previous errors
 

tests/ui/abi/issues/issue-22565-rust-call.stderr

@@ -1,26 +1,26 @@
 error[E0703]: invalid ABI: found `riscv-interrupt`
-  --> $DIR/riscv-discoverability-guidance.rs:17:8
-   |
-LL | extern "riscv-interrupt" fn isr() {}
-   |        ^^^^^^^^^^^^^^^^^
-   |        |
-   |        invalid ABI
-   |        help: did you mean: `"riscv-interrupt-m"`
-   |
-   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
-   = note: please use one of riscv-interrupt-m or riscv-interrupt-s for machine- or supervisor-level interrupts, respectively
+   ╭▸ $DIR/riscv-discoverability-guidance.rs:17:8
+   │
+LL │ extern "riscv-interrupt" fn isr() {}
+   │        ┯━━━━━━━━━━━━━━━━
+   │        ┆
+   │        invalid ABI
+   │        help: did you mean: `"riscv-interrupt-m"`
+   │
+   ├ note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
+   ╰ note: please use one of riscv-interrupt-m or riscv-interrupt-s for machine- or supervisor-level interrupts, respectively
 
 error[E0703]: invalid ABI: found `riscv-interrupt-u`
-  --> $DIR/riscv-discoverability-guidance.rs:23:8
-   |
-LL | extern "riscv-interrupt-u" fn isr_U() {}
-   |        ^^^^^^^^^^^^^^^^^^^
-   |        |
-   |        invalid ABI
-   |        help: did you mean: `"riscv-interrupt-m"`
-   |
-   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
-   = note: user-mode interrupt handlers have been removed from LLVM pending standardization, see: https://reviews.llvm.org/D149314
+   ╭▸ $DIR/riscv-discoverability-guidance.rs:23:8
+   │
+LL │ extern "riscv-interrupt-u" fn isr_U() {}
+   │        ┯━━━━━━━━━━━━━━━━━━
+   │        ┆
+   │        invalid ABI
+   │        help: did you mean: `"riscv-interrupt-m"`
+   │
+   ├ note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.
+   ╰ note: user-mode interrupt handlers have been removed from LLVM pending standardization, see: https://reviews.llvm.org/D149314
 
 error: aborting due to 2 previous errors