feat: basic warning mechanism

[hyf0]

Description

Closes #331

How it looks like: https://github.com/rolldown-rs/rolldown/blob/1019fc02a64be334b3b11f9552da96b2ced7d2ba/crates/rolldown/tests/fixtures/warnings/basic/artifacts.snap

Test Plan

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[hyf0]

Current dependencies on/for this PR:

• main
  • PR feat: add ExportsKind::None #315
    • PR chore: tweak visitability of Scanner #316
      • PR feat: empty module should have ExportsKind::None #317
        • PR feat: treat required module with ExportKind::None as commonjs #319
          • PR chore: remove unnecessary casting #320
            • PR chore(js): deny lint warnings in CI #321
              • PR refactor: create wrapper_ref after wrapping #322
                • PR fix: ensure valid output for import the same cjs twice #323
                  • PR fix: only import needed runtime symbols #324
                  • PR chore: remove unused LinkingInfo#export_from_map #325
                  • PR feat: make BuildError newtype #326
                  • PR feat: introduce trait BuildErrorLike #327
                  • PR feat: store source in BuildError #328
                  • PR feat: print fancy messages for errors #329
                  • PR feat: basic warning mechanism #332 👈

This stack of pull requests is managed by Graphite.

[milesj]

What's the reasoning for not using miette's built in diagnostic stuff?

[hyf0]

What's the reasoning for not using miette's built in diagnostic stuff?

Let me try to explain. What miette does/The main part it's allow to make diagnostics using dsl/macros. Macros has many limitations. And the expected of miette is "Write a unique error and use miette to declared a diagnostic", while we actually don't create diagnostic for each error.

In fact we currently have only one error with different error kind, this kind of breaks what miette expected.

Other than that, for supporting warnings, we need to display different contents/colors than errors, while miette is designed to work with errors and prefer macros. Maybe we could figure out a way to config it, But than I thought it's probably the same we use ariadne directly, since miette use it under the hood.

[hyf0]

Merge activity

• Nov 20, 1:16 AM: @hyf0 started a stack merge that includes this pull request via Graphite.
• Nov 20, 1:17 AM: Graphite rebased this pull request as part of a merge.
• Nov 20, 1:19 AM: @hyf0 merged this pull request with Graphite.