Subject: bug#61104: 29.0.60; typescript-ts-mode does not provide compilation-mode support

From: Eli Zaretskii <[email-masked]>
Date: Fri, 27 Jan 2023 22:30:02 +0200

> Cc: Yuan Fu <[email-masked]>, Theodor Thornhill <[email-masked]>
> Date: Fri, 27 Jan 2023 21:14:30 +0100
> From: Jostein Kjønigsen <[email-masked]>
> 
> When compiling a TypeScript project using tsc (or other tooling) from Emacs,
> compilation errors and warnings are not highlighted by compilation-mode.
> 
> Consider the following output:
> 
> src/resources/document.ts:140:22 - error TS2362: The left-hand side of an arithmetic operation must be of
> type 'any', 'number', 'bigint' or an enum type.
> 
> 140       return `File-${new Date() * 1}${ext}`;
>                          ~~~~~~~~~~
> 
> This output should cause compilation-mode to highlight the error and provide code-navigation.
> 
> I know we explicitly added support for this to typescript.el back in the days, but I'm not
> sure what the "right" thing to do is now that typescrip-ts-mode is a first class Emacs citizen.
> 
> Should we add compilation-mode patterns directly to the major-mode, or should we provide
> patches to compile.el instead?

Why isn't this part of compilation-error-regexp-alist-alist?