Add an experimental flag-gated in-process compile path for hot reload sessions - #20031

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NatElkins wants to merge 171 commits into

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NatElkins:hotreload-inprocess-compile

Commits on Jul 17, 2026

Add Roslyn-format EnC CustomDebugInformation codec and portable PDB method CDI emission
NatElkins
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f6cad50
Use ProcessStartInfo.Arguments for net472 compatibility
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0d02145
Make the EnC CDI test module public for xunit v3 discovery
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66a1412
Extract stable synthesized-name replay layer
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c8639f3
Add ECMA-335 EnC metadata delta writer
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d6319c1
Add typed-tree diff slice for hot reload
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b0a487f
Fix generated-name scope test in stable names slice
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d505ab9
Fix EnC CDI cross-validation test process launch on Desktop and bare CI images
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7aaacc5
Remove extra EOF blank line in delta metadata tests
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c78b2f6
Merge branch 'refresh/20260717/hotreload-typedtree-diff' into refresh/20260717/hotreload-delta-emitter
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2facaf2
Merge branch 'refresh/20260717/hotreload-stable-names' into refresh/20260717/hotreload-baseline-reader
NatElkins
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cd1339b
Merge branch 'refresh/20260717/enc-metadata-delta-writer' into refresh/20260717/hotreload-delta-emitter
NatElkins
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ba5bce9
Add hot reload baseline reader state
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c23986b
Extract hot reload delta emitter
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ac6a1ba
Fix synthesized-name snapshot assertions to use the array equality overload
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11e8fa0
Align the signature-change diff test with the evolved differ classification
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b228654
Validate hot reload baseline metadata inputs
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3e1678d
Enforce cumulative metadata delta invariants
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5fdf705
Validate hot reload generated names before classification
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c584660
Validate hot reload baseline metadata inputs
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9a9211e
Preserve reviewed lower-slice invariants in delta emitter
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be6df7b
Unify delta emission on the shared metadata writer
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8932904
Fail closed on unresolved accessor metadata
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d40f0bc
Extract hot reload session slice
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11b50cc
Fix CI compile breaks and extraction debris in the session slice tests
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36ef5ba
Fix net472 and CI-image portability breaks in session slice tests
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330761c
Drop the netcore-only Contains overload from delta builder tests
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a886637
Gate the Roslyn baseline comparison tests to .NET Core
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9bb2547
Normalize fixture line endings before update-source splicing
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6420b62
Update ilxgen name-path architecture guard
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c67ec56
Remove duplicate delta metadata test copies
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a4b8616
Remove duplicate compiler global reset member
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4a1efa4
Remove duplicate compiler global reset signature
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7216294
Repair session slice after metadata writer consolidation
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2b461a8
Make hot reload session updates transactional
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9bf2891
Extract the flag-gated in-process compile perf slice
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1f7fa5d
Apply post-main hot reload perf cleanup
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8554882
Remove trailing EOF whitespace in hot reload tests
NatElkins
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eb1e86d
Fix synthesized type alias reuse in in-process hot reload
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9c2d4b6
Preserve hot reload slice invariants in in-process compilation
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464ee2a
Harden in-process hot reload compilation
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8ea9e6b
Verify overlapping hot reload emits serialize
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63db0b3
Minimize in-process compiler surface drift
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00f11e6
Report hot reload update capabilities
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9112dab
Report hot reload update capabilities
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21dbd06
Expose required hot reload capabilities
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b26df0f
Report hot reload update capabilities
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408de0c
Expose required hot reload capabilities
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5fa9d32
Document F# hot reload rude-edit diagnostics
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490f458
Document F# hot reload rude-edit diagnostics
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412edf5
Format delta metadata writer sources
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16b0de1
Format delta metadata writer sources
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a402010
Format delta metadata writer sources
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c7aed88
Format hot reload compiler sources
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24f4879
Format hot reload compiler sources
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34950ea
Format hot reload compiler sources
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733a531
Format hot reload emitter sources
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1248503
Format hot reload session sources
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254b36c
Format in-process hot reload sources
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7e8cf28

Commits on Jul 18, 2026

Retry CI after Linux runner memory exhaustion
NatElkins
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4768d1b

Commits on Jul 22, 2026

Add typed-tree diff slice for hot reload
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bdb1d28
Make typed-tree diff classification fail closed
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1a5c97e
Format hot reload compiler sources
NatElkins
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f7dd5dd
Add ECMA-335 EnC metadata delta writer
NatElkins
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c2d4c86
Remove extra EOF blank line in delta metadata tests
NatElkins
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83696d2
Enforce cumulative metadata delta invariants
NatElkins
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6cc71de
Format delta metadata writer sources
NatElkins
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7e2770f
Retry CI after regression job timeout
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078961d
Share delta user string encoding and trace configuration
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33fceef
Harden hot reload session capture and file handling
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0e55c15
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-session
NatElkins
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ad6c411
Handle metadata-only methods in PDB ambiguity checks
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e981e30
Share delta user string encoding and trace configuration
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1f7a82b
Make synthesized name snapshots deterministic
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06378d5
Harden typed-tree diff classification
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6129dda
Preserve threaded optimizer state in incremental emit cache
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9b7afdc
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-inprocess-compile
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2913faf
Handle metadata-only methods in PDB ambiguity checks
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5f85d70
Share delta user string encoding and trace configuration
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1463648
Make synthesized name snapshots deterministic
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b05b479
Harden hot reload session capture and file handling
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1366c65
Harden baseline metadata parsing
NatElkins
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4ad2364
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-baseline-reader
NatElkins
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88c0c62
Handle metadata-only methods in PDB ambiguity checks
NatElkins
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9dad496
Make synthesized name snapshots deterministic
NatElkins
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e7531a7
Harden typed-tree diff classification
NatElkins
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eaaf64e
Harden baseline metadata parsing
NatElkins
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2491370
Harden typed-tree diff classification
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03b7852
Harden baseline metadata parsing
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73e2687
Harden delta metadata identity and cleanup
NatElkins
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ac42fbf
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-delta-emitter
NatElkins
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2aefa5f
Handle metadata-only methods in PDB ambiguity checks
NatElkins
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17f464f
Share delta user string encoding and trace configuration
NatElkins
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25eca5c
Make synthesized name snapshots deterministic
NatElkins
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98aeadb
Harden typed-tree diff classification
NatElkins
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e84c143
Harden baseline metadata parsing
NatElkins
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2a827b0
Harden delta metadata identity and cleanup
NatElkins
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01d19b1
Harden delta metadata identity and cleanup
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6365078
Ignore transient provider scopes in body identity
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118edc8
Ignore transient provider scopes in body identity
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eb661b3
Ignore transient provider scopes in body identity
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20f67d8
Preserve recorded synthesized alias replay
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54eba2f

Commits on Jul 23, 2026

Bound decision-tree identity traversal
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e3e089d
Bound baseline string heap reads
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7ffe458
Bound decision-tree identity traversal
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42d29eb
Fail closed on closure-name recapture mismatch
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0b44ec4
Bound baseline string heap reads
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7b00822
Bound decision-tree identity traversal
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ec0f30b
Bound baseline string heap reads
NatElkins
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f2d7c1e
Fail closed on closure-name recapture mismatch
NatElkins
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f2e3b13
Bound decision-tree identity traversal
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bee5347
Bound baseline string heap reads
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76c874c
Format bounded string heap reader
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a052db3
Format bounded string heap reader
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474bbef
Make closure recapture test deterministic
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9f6a761
Make closure recapture test deterministic
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68d281d
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-session
NatElkins
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e5d6392

Commits on Jul 24, 2026

Merge branch 'main' into enc-metadata-delta-writer
T-Gro
authored
54cd67d
Merge branch 'main' into hotreload-typedtree-diff
T-Gro
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62df5dc
Merge remote-tracking branch 'origin/main' into refresh/20260717/enc-metadata-delta-writer
NatElkins
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8d28083
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-typedtree-diff
NatElkins
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b492d58
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-baseline-reader
NatElkins
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ead308d
Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-delta-emitter
NatElkins
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7622b7e
Complete hot reload merge integration
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c83b6ab
Fix compiled baseline metadata table parsing
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6c7a61b
Update delta metadata test writer options
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4386ab1
Complete baseline reader merge integration
NatElkins
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e0a38af
Merge branch 'refresh/20260717/enc-metadata-delta-writer' into refresh/20260717/hotreload-delta-emitter
NatElkins
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e1d6a50
Merge branch 'refresh/20260717/hotreload-typedtree-diff' into refresh/20260717/hotreload-delta-emitter
NatElkins
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3ce3b14
Merge branch 'refresh/20260717/hotreload-baseline-reader' into refresh/20260717/hotreload-delta-emitter
NatElkins
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b994397
Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
NatElkins
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cf0202c
Complete session merge integration
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469a3b2
Deduplicate merged compiler source entries
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5b12365
Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
NatElkins
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4c0bba2
Merge branch 'refresh/20260717/hotreload-session' into refresh/20260717/hotreload-inprocess-compile
NatElkins
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c4005a9
Remove obsolete baseline reader copy
NatElkins
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000171d
Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
NatElkins
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e9b19d1
Merge branch 'refresh/20260717/hotreload-session' into refresh/20260717/hotreload-inprocess-compile
NatElkins
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cdbf303
Renumber hot reload driver diagnostics
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a34afbc
Merge branch 'refresh/20260717/hotreload-session' into refresh/20260717/hotreload-inprocess-compile
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30b5e44
Place baseline reader release note in current FCS notes
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0ad1dce
Merge refreshed baseline reader release note
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47e92ee
Deduplicate composite release notes
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5bdb691
Merge refreshed delta emitter release notes
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88053ca
Give session slice a single current release note
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1511b10
Merge refreshed session release notes
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5e4a084
Give in-process slice a single current release note
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efd961e
Keep hot reload diagnostics sorted
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238ebb6
Merge sorted hot reload diagnostics
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12a64db
Merge current main
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06e0ad8
Merge current main
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e56776f
Merge current main
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6218916
Merge refreshed enc-metadata-delta-writer
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2ec1bd2
Merge refreshed hotreload-typedtree-diff
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5f359e8
Merge refreshed hotreload-baseline-reader
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b2642b8
Merge refreshed delta emitter
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ea8c3d3
Merge refreshed hot reload session
NatElkins
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d2b2966

Commits on Aug 6, 2026