WRNexusJS/FIXES-0.6.0-R10-PEER-FUNCTION-STATE.md

WRNexusJS v0.6.0 R10 peer-function state fix

Failure

The compiler test browser codegen binds peer client functions through the scoped function table failed because an outer client function captured local state before calling a peer function. The peer updated context.state, but the outer function's finally block copied its stale local value back over the peer update.

Fix

packages/compiler/src/client-codegen.ts now generates peer-function wrappers that:

1. synchronize the caller's local state into context.state before the peer call;
2. invoke the peer through context.functions;
3. refresh local aliases from context.state after synchronous completion, asynchronous completion, or a synchronous throw;
4. copy local state back only when it actually changed from the function-entry snapshot.

This preserves shared scoped state for nested client/shared function calls without changing synchronous functions into promises.

Regression validation

• Exact peer-call execution probe: passed (run() calls increment(), final state is 1).
• Focused TypeScript compiler check: passed.
• UI browser targets generated and syntax-checked: 108/108.
• UI and showcase WRN files parsed: 250/250.
• VS Code tests: 28/28.
• Root v0.6 validator: 18 passed, 0 failed (Bun availability warning only in the packaging environment).