feat(v17): Implement tracing channels#4670

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logaretm wants to merge 55 commits into

graphql:17.x.xfrom

logaretm:tracing-channel-support

Commits on May 14, 2026

feat(diagnostics): add enableDiagnosticsChannel and channel registry
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feat(language): publish on graphql:parse tracing channel
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test(integration): exercise graphql tracing channels on real node:diagnostics_channel
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feat(validation): publish on graphql:validate tracing channel
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feat(execution): publish on graphql:execute tracing channel
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refactor(diagnostics): align async lifecycle with Node's tracePromise shape
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feat(execution): publish on graphql:subscribe tracing channel
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feat(execution): publish on graphql:resolve tracing channel
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fix(diagnostics): preserve AsyncLocalStorage across async lifecycle
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fix(diagnostics): fire asyncStart synchronously, asyncEnd in finally
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chore: remove old comments no longer apply
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ref: remove tracePromise as it was not needed with runStores
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ref(perf): cache publish decision in excutor
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test: coverage and cleanup unused type
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feat(diagnostics): throw on re-registration with different dc module
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feat(diagnostics): allow re-registration with equivalent tracingChannel function
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ref: autoload tracing channels
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ref: create direct pointers to tracing channels
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ref(perf): inline no-subscriber fast path at tracing emission sites
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test: cover executeIgnoringIncremental traced path and drop unused traceSync
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ref(perf): keep executeField inlinable by extracting traced path
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rename from isTrivialResolver => isDefaultResolver

yaacovCR
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move helpers into class

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condense

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move subscription event tracing to mapSourceToResponse

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fixes failing test

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rename test files

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merge resolve tracing tests into execution tracing file

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use per-test rootValue in execution tracing tests

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test no tracing activity

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add c8 ignore directive

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move tracing back to executeField

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add globalThis to protect against potentially missing process symbol

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rename test files (yet again!)

yaacovCR
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prune required MinimalChannelInterface

yaacovCR
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move function helpers to follow their use

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revamp diagnostics tests with full subscription data

yaacovCR
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make sure variableValues in context for execution and subscription are the original passed values, not the internal type

yaacovCR
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separate out diagnostics for execute/subscribe/resolve

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fix coverage

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expand integration tests for non latest node

yaacovCR
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support runtimes without TracingChannel.hasSubscribers aggregate
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cover shouldTrace: real-channel test plus c8 ignore for Bun fallback
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restore aggregate-first branch order in shouldTrace
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use helpers extracted from this PR now on 17.x.x

yaacovCR
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narrow ignore

yaacovCR
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just iterate

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simplify context build

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revert "simplification"

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introduce execute:rootSelectionSet and subscribe:perEventExecutor

yaacovCR
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chore(diagnostics): standardize context field ordering

yaacovCR
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feat(diagnostics): add strict types for all Ctx types

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rename ctx => context

yaacovCR
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fix: adapt diagnostics to v17 after rebase
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Commits on May 15, 2026

refactor: store rawVariableValues on ValidatedExecutionArgs
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