Carry both call-site and definition site in Effect.fn, auto-trace to anon

[mikearnaldi]

The following code:

import { Cause, Effect, Exit } from "effect"

const f = () => {
  throw new Error("OOO")
}

const program = Effect.fn(function*() {
  f()
})

Effect.runPromiseExit(Effect.scoped(program())).then(Exit.match({
  onSuccess() {},
  onFailure(cause) {
    console.log(Cause.pretty(cause))
  }
}))

will print:

Error: OOO
    at f (/Users/michaelarnaldi/repositories/effect/scratchpad/exit.ts:4:9)
    at <anonymous> (/Users/michaelarnaldi/repositories/effect/scratchpad/exit.ts:8:3)
    at <anonymous> (/Users/michaelarnaldi/repositories/effect/scratchpad/exit.ts:7:24)
    at <anonymous> (/Users/michaelarnaldi/repositories/effect/scratchpad/exit.ts:11:37)

[mikearnaldi]

@tim-smart proposal to auto-trace, this should follow the introduction to the flag to avoid propagation of anon spans.

Note that while spans shouldn't be propagated the stack trace of an eventual error should still be complete even in otel, but that should work out of the box as it gets generated via pretty

[changeset-bot]

🦋 Changeset detected

Latest commit: 4735117

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 35 packages

Name	Type
effect	Minor
@effect/vitest	Major
@effect/cli	Major
@effect/cluster-browser	Major
@effect/cluster-node	Major
@effect/cluster-workflow	Major
@effect/cluster	Major
@effect/experimental	Major
@effect/opentelemetry	Major
@effect/platform-browser	Major
@effect/platform-bun	Major
@effect/platform-node-shared	Major
@effect/platform-node	Major
@effect/platform	Major
@effect/printer-ansi	Major
@effect/printer	Major
@effect/rpc-http	Major
@effect/rpc	Major
@effect/sql-clickhouse	Major
@effect/sql-d1	Major
@effect/sql-drizzle	Major
@effect/sql-kysely	Major
@effect/sql-libsql	Major
@effect/sql-mssql	Major
@effect/sql-mysql2	Major
@effect/sql-pg	Major
@effect/sql-sqlite-bun	Major
@effect/sql-sqlite-do	Major
@effect/sql-sqlite-node	Major
@effect/sql-sqlite-react-native	Major
@effect/sql-sqlite-wasm	Major
@effect/sql	Major
@effect/typeclass	Major
@effect/ai	Major
@effect/ai-openai	Major

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[mikearnaldi]

/rebase

[tim-smart]

/rebase

[tim-smart]

/rebase

[tim-smart]

/rebase

[tim-smart]

/rebase

[tim-smart]

/rebase

[mikearnaldi]

/rebase