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rust/tests/ui/error-emitter/E0308-clarification.svg
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Esteban Küber c75e601543 Highlight clarifying information in "expected/found" error 
When the expected and found types have the same textual representation, we add clarifying in parentheses. We now visually highlight it in the output.

Detect a corner case where the clarifying information would be the same for both types and skip it, as it doesn't add anything useful.
2025-02-02 02:39:43 +00:00

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<text xml:space="preserve" class="container fg">
<tspan x="10px" y="28px"><tspan class="fg-ansi256-009 bold">error[E0308]</tspan><tspan class="bold">: mismatched types</tspan>
</tspan>
<tspan x="10px" y="46px"><tspan> </tspan><tspan class="fg-ansi256-012 bold"> ╭▸ </tspan><tspan>$DIR/E0308-clarification.rs:15:10</tspan>
</tspan>
<tspan x="10px" y="64px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="82px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> fn hide&lt;T: Foo&gt;(x: T) -&gt; impl Foo {</tspan>
</tspan>
<tspan x="10px" y="100px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">┬───────</tspan>
</tspan>
<tspan x="10px" y="118px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="136px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">the expected opaque type</tspan>
</tspan>
<tspan x="10px" y="154px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">the found opaque type</tspan>
</tspan>
<tspan x="10px" y="172px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">‡</tspan>
</tspan>
<tspan x="10px" y="190px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> x = (x.1, x.0);</tspan>
</tspan>
<tspan x="10px" y="208px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">━━━</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">expected `u32`, found `i32`</tspan>
</tspan>
<tspan x="10px" y="226px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="244px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">├ </tspan><tspan class="bold">note</tspan><tspan>: expected opaque type `</tspan><tspan class="fg-magenta bold">impl Foo</tspan><tspan>` (</tspan><tspan class="fg-magenta bold">`u32`</tspan><tspan>)</tspan>
</tspan>
<tspan x="10px" y="262px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> found opaque type `</tspan><tspan class="fg-magenta bold">impl Foo</tspan><tspan>` (</tspan><tspan class="fg-magenta bold">`i32`</tspan><tspan>)</tspan>
</tspan>
<tspan x="10px" y="280px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">╰ </tspan><tspan class="bold">note</tspan><tspan>: distinct uses of `impl Trait` result in different opaque types</tspan>
</tspan>
<tspan x="10px" y="298px">
</tspan>
<tspan x="10px" y="316px"><tspan class="fg-ansi256-009 bold">error[E0308]</tspan><tspan class="bold">: mismatched types</tspan>
</tspan>
<tspan x="10px" y="334px"><tspan> </tspan><tspan class="fg-ansi256-012 bold"> ╭▸ </tspan><tspan>$DIR/E0308-clarification.rs:15:15</tspan>
</tspan>
<tspan x="10px" y="352px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="370px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> fn hide&lt;T: Foo&gt;(x: T) -&gt; impl Foo {</tspan>
</tspan>
<tspan x="10px" y="388px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">┬───────</tspan>
</tspan>
<tspan x="10px" y="406px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="424px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">the expected opaque type</tspan>
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<tspan x="10px" y="442px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">the found opaque type</tspan>
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<tspan x="10px" y="460px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">‡</tspan>
</tspan>
<tspan x="10px" y="478px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> x = (x.1, x.0);</tspan>
</tspan>
<tspan x="10px" y="496px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">━━━</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">expected `i32`, found `u32`</tspan>
</tspan>
<tspan x="10px" y="514px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan>
</tspan>
<tspan x="10px" y="532px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">├ </tspan><tspan class="bold">note</tspan><tspan>: expected opaque type `</tspan><tspan class="fg-magenta bold">impl Foo</tspan><tspan>` (</tspan><tspan class="fg-magenta bold">`i32`</tspan><tspan>)</tspan>
</tspan>
<tspan x="10px" y="550px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">│</tspan><tspan> found opaque type `</tspan><tspan class="fg-magenta bold">impl Foo</tspan><tspan>` (</tspan><tspan class="fg-magenta bold">`u32`</tspan><tspan>)</tspan>
</tspan>
<tspan x="10px" y="568px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">╰ </tspan><tspan class="bold">note</tspan><tspan>: distinct uses of `impl Trait` result in different opaque types</tspan>
</tspan>
<tspan x="10px" y="586px">
</tspan>
<tspan x="10px" y="604px"><tspan class="fg-ansi256-009 bold">error</tspan><tspan class="bold">: aborting due to 2 previous errors</tspan>
</tspan>
<tspan x="10px" y="622px">
</tspan>
<tspan x="10px" y="640px"><tspan class="bold">For more information about this error, try `rustc --explain E0308`.</tspan>
</tspan>
<tspan x="10px" y="658px">
</tspan>
</text>
</svg>
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