New tests cover:
- Step-into named function reports callee source (clojure#13)
- Step-into multi-arity function (clojure#14)
- Breakpoint on call expression line with StatementTag (clojure#15)
- Three breakpoints fire in order on separate def forms (clojure#16)
- Step-into then step-over stays in callee body (clojure#17)
- Step-into then step-out returns to caller (clojure#18)
- Step-into anonymous fn created with fn form (clojure#19)
- Breakpoint inside multi-line function body (clojure#20)
- Step-into higher-order function call (clojure#21)
- Recursive stack depth monotonically increases (clojure#22)
- Step-out from function returns to caller (clojure#23)
- Breakpoint on if branch fires (clojure#24)
- Breakpoint on let binding fires (clojure#25)
- Step-into closure that captures locals (clojure#26)
- Breakpoint in loop body fires on each iteration (clojure#27)
- Source section at call site has correct characters (clojure#28)
- Breakpoint inside do body (clojure#29)
- Step-into across separate eval contexts (clojure#30)
- Breakpoint with cond macro expansion (clojure#31)
- Multiple step-into follows b->c call chain (clojure#32)

All 737 JUnit tests pass.

Co-authored-by: karl <karl@medplum.com>

…agation (#6)

* Improve debugger support: RootTag on FnDispatchNode, source section propagation, language reference on FnNode

Key changes:
- FnDispatchNode now reports RootTag alongside RootBodyTag, enabling the
  Truffle debugger to recognize function entry boundaries for step-into
- FnDispatchNode gets its source section from the parent FnNode so that
  isInstrumentable() returns true
- FnNode stores a language reference (set by ExprToNode) and uses it as
  primary source in getCallTarget(), falling back to Clojure.getContext()
  lookup. This ensures per-function ClojureRootNode instances are created
  with a proper language association for stack frame reporting.
- InvokeNode propagates source sections to FnDispatchNode when creating
  static call targets
- truffleEval() now sets source sections and root names on eagerly
  executed form roots
- SequentialFormNode per-form roots now set source sections properly
  (full source first, then narrow when form section is available)
- 8 new debugger tests (20 total, all passing) covering function name
  reporting, multi-line fn breakpoints, step-over, recursive stack
  growth, step-out, source section propagation, and eager eval roots
- All 725 JUnit tests pass

Co-authored-by: karl <karl@medplum.com>

* Update CLOFFLE_NOTES.md with debugger improvements documentation

Document the FnDispatchNode RootTag fix, source section propagation,
language reference on FnNode, truffleEval source sections, and
SequentialFormNode narrowing. Update known limitations to reflect
current state.

Co-authored-by: karl <karl@medplum.com>

* Add StatementTag to hasTag on remaining call node classes

InstanceCallNode, ProtocolInvokeNode, NewNode, NativeCallNode, and
KeywordInvokeNode now report StandardTags.StatementTag alongside CallTag
and ExpressionTag for instrumentation consistency.

Co-authored-by: karl <karl@medplum.com>

* Remove unnecessary @TruffleBoundary, add StatementTag to call nodes, restructure SequentialFormNode

Major debugger improvements:
- SequentialFormNode: Removed @TruffleBoundary from executeSequentially() and
  restructured to use @children DirectCallNode[] created at parse time. Per-form
  roots are now created in the constructor with proper source section narrowing
  (full source first, adoptChildren(), then narrow). This allows the debugger to
  step between top-level forms and enables breakpoints to match nodes inside
  per-form roots.
- InvokeNode, GenericStaticCallNode: Added StatementTag alongside CallTag and
  ExpressionTag. Breakpoints default to matching StatementTag, so call expressions
  were previously invisible to line breakpoints.
- ClojureNode: Removed @TruffleBoundary from getSourceSection() - this is metadata
  computation that doesn't need a compilation boundary.
- ClojureTypes: Removed @TruffleBoundary from castDouble() - trivial cast.
- Updated DebuggerTest: stepIntoFromCallSite now asserts 2 suspensions (step-into
  actually enters the called function body). Updated test comments.
- All 725 JUnit tests pass.

Co-authored-by: karl <karl@medplum.com>

* Update CLOFFLE_NOTES.md: document StatementTag on call nodes, SequentialFormNode restructure, boundary removals

Co-authored-by: karl <karl@medplum.com>

* Add 20 new debugger tests (32 total)

New tests cover:
- Step-into named function reports callee source (clojure#13)
- Step-into multi-arity function (clojure#14)
- Breakpoint on call expression line with StatementTag (clojure#15)
- Three breakpoints fire in order on separate def forms (clojure#16)
- Step-into then step-over stays in callee body (clojure#17)
- Step-into then step-out returns to caller (clojure#18)
- Step-into anonymous fn created with fn form (clojure#19)
- Breakpoint inside multi-line function body (clojure#20)
- Step-into higher-order function call (clojure#21)
- Recursive stack depth monotonically increases (clojure#22)
- Step-out from function returns to caller (clojure#23)
- Breakpoint on if branch fires (clojure#24)
- Breakpoint on let binding fires (clojure#25)
- Step-into closure that captures locals (clojure#26)
- Breakpoint in loop body fires on each iteration (clojure#27)
- Source section at call site has correct characters (clojure#28)
- Breakpoint inside do body (clojure#29)
- Step-into across separate eval contexts (clojure#30)
- Breakpoint with cond macro expansion (clojure#31)
- Multiple step-into follows b->c call chain (clojure#32)

All 737 JUnit tests pass.

Co-authored-by: karl <karl@medplum.com>

* Add 20 more debugger tests (52 total)

New tests cover:
- Step-over does not enter callee (clojure#33)
- Breakpoint inside try body (clojure#34)
- Step-into variadic function (clojure#35)
- Breakpoint on case form (clojure#36)
- Breakpoint on throw form (clojure#37)
- Breakpoint on recur form fires each iteration (clojure#38)
- Source file name at breakpoint is correct (clojure#39)
- Step-into locally-defined function (let + fn) (clojure#40)
- Breakpoint on nested let (clojure#41)
- Breakpoint removal prevents further hits (clojure#42)
- Breakpoint on keyword invoke (:key map) (clojure#43)
- Breakpoint inside letfn with mutual recursion (clojure#44)
- Breakpoint on Java interop .method call (clojure#45)
- Breakpoint on constructor call (clojure#46)
- Breakpoint on static method call (clojure#47)
- Step-into multi-arity with delegating arity (clojure#48)
- Continue after multiple breakpoints resumes fully (clojure#49)
- Breakpoint on and/or macro expansion (clojure#50)
- Source section length matches form length (clojure#51)
- Breakpoint on when macro (clojure#52)

All 757 JUnit tests pass.

Co-authored-by: karl <karl@medplum.com>

* Add 18 advanced debugger tests (70 total)

Advanced debugger feature tests:
- Conditional breakpoint fires on loop iterations (clojure#53)
- One-shot breakpoint fires exactly once (clojure#54)
- Breakpoint ignoreCount skips initial hits (clojure#55)
- Breakpoint hit count tracks total activations (clojure#56)
- DebugStackFrame.getScope() returns local variable scope (clojure#57)
- DebugStackFrame.getLanguage() returns cloffle language info (clojure#58)
- Internal frames not visible in default mode (clojure#59)
- SuspendedEvent.getSuspendAnchor() returns BEFORE (clojure#60)
- Return value available after step-over (clojure#61)
- Breakpoint isResolved after execution (clojure#62)
- Breakpoint enable/disable toggle (clojure#63)
- SuspendedEvent.getBreakpoints() reports the firing breakpoint (clojure#64)
- Step-into count > 1 steps multiple times (clojure#65)
- Step-over count > 1 skips multiple statements (clojure#66)
- isBreakpointHit() vs isStep() distinction (clojure#67)
- Breakpoint on function in different source fires on call (clojure#68)
- Breakpoint on defn line fires during definition (clojure#69)
- Eval expression in suspended frame context (clojure#70)

All 775 JUnit tests pass.

Co-authored-by: karl <karl@medplum.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>