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Author	SHA1	Message	Date
Siegfried Pammer	c52a0f29f6	Fix #1388 , #1928 : decompile await on dynamic expressions Awaiting a dynamic value lowers GetAwaiter/IsCompleted/GetResult to dynamic callsites, which async decompilation could not recognize: await detection ran before DynamicCallSiteTransform, so the await was emitted as a raw state machine (or crashed in AnalyzeAwaitBlock, #1388). AnalyzeStateMachine now collapses the awaiter callsites per block, folds the runtime ICriticalNotifyCompletion branch the compiler emits for an awaiter not statically known to implement it into the canonical single call, and re-joins the branch chains the collapse leaves so each dynamic await sits in one block. DetectAwaitPattern matches the dynamic GetAwaiter/IsCompleted/GetResult shape and emits `await expr`; a synthesized dynamic GetResult method gives the await and its local the dynamic type. DynamicCallSiteTransform also follows callsite targets spilled into state-machine locals, so an awaited value flowing into a dynamic callsite (e.g. d.Result = await ..., #1928) decompiles too. Assisted-by: Claude:claude-fable-5:Claude Code	2 months ago

Author

SHA1

Message

Date

Siegfried Pammer

c52a0f29f6

Fix #1388 , #1928 : decompile await on dynamic expressions

Awaiting a dynamic value lowers GetAwaiter/IsCompleted/GetResult to
dynamic callsites, which async decompilation could not recognize:
await detection ran before DynamicCallSiteTransform, so the await was
emitted as a raw state machine (or crashed in AnalyzeAwaitBlock, #1388).

AnalyzeStateMachine now collapses the awaiter callsites per block, folds
the runtime ICriticalNotifyCompletion branch the compiler emits for an
awaiter not statically known to implement it into the canonical single
call, and re-joins the branch chains the collapse leaves so each dynamic
await sits in one block. DetectAwaitPattern matches the dynamic
GetAwaiter/IsCompleted/GetResult shape and emits `await expr`; a
synthesized dynamic GetResult method gives the await and its local the
dynamic type. DynamicCallSiteTransform also follows callsite targets
spilled into state-machine locals, so an awaited value flowing into a
dynamic callsite (e.g. d.Result = await ..., #1928) decompiles too.

Assisted-by: Claude:claude-fable-5:Claude Code

2 months ago

1 Commits (313d1c6af08fd3eab41d71dce05ef663d4e9af49)