chore: emitter/runtime improvements from previous session

lib/cljnim_runtime.nim

@@ -11,6 +11,9 @@ type
     fn: CljVal
     args: seq[CljVal]
 
+  ExInfo* = object of CatchableError
+    exData*: CljVal
+
   CljVal* = ref CljValObj
   CljValObj = object
     meta*: CljVal
@@ -110,6 +113,24 @@ proc cljSet*(items: seq[CljVal]): CljVal =
     s = pmapAssoc(s, item, true, hash(item), cljEq)
   CljVal(kind: ckSet, setData: s)
 
+proc cljSet*(coll: CljVal): CljVal =
+  var s = newPersistentMap[CljVal, bool]()
+  if coll.isNil: return CljVal(kind: ckSet, setData: s)
+  case coll.kind
+  of ckList:
+    for item in coll.listItems:
+      s = pmapAssoc(s, item, true, hash(item), cljEq)
+  of ckVector:
+    for item in toSeq(coll.vecData):
+      s = pmapAssoc(s, item, true, hash(item), cljEq)
+  of ckSet:
+    return coll
+  of ckMap:
+    for key in pmapKeys(coll.mapData):
+      s = pmapAssoc(s, key, true, hash(key), cljEq)
+  else: discard
+  CljVal(kind: ckSet, setData: s)
+
 proc cljHashMap*(args: seq[CljVal]): CljVal =
   if args.len mod 2 != 0:
     raise newException(CatchableError, "hash-map requires even number of arguments")
@@ -185,6 +206,47 @@ proc cljIsColl*(v: CljVal): CljVal = cljBool(not cljIsNil(v) and v.kind in {ckLi
 proc cljIsSequential*(v: CljVal): CljVal = cljBool(not cljIsNil(v) and v.kind in {ckList, ckVector})
 proc cljIsFn*(v: CljVal): CljVal = cljBool(not cljIsNil(v) and v.kind == ckFn)
 proc cljIsVar*(v: CljVal): CljVal = cljBool(false)
+
+proc cljParseUuid*(s: CljVal): CljVal =
+  if s.kind != ckString:
+    raise newException(CatchableError, "Invalid UUID string")
+  let str = s.strVal
+  if str.len == 0:
+    return cljNil()
+  # Simple UUID validation: 8-4-4-4-12 hex digits
+  var parts: seq[string] = @[]
+  var current = ""
+  for c in str:
+    if c == '-':
+      parts.add(current)
+      current = ""
+    else:
+      current.add(c)
+  parts.add(current)
+  if parts.len == 5 and
+     parts[0].len == 8 and parts[1].len == 4 and parts[2].len == 4 and
+     parts[3].len == 4 and parts[4].len == 12:
+    for p in parts:
+      for c in p:
+        if c notin {'0'..'9', 'a'..'f', 'A'..'F'}:
+          return cljNil()
+    return cljString(str.toLowerAscii())
+  return cljNil()
+
+proc cljIsUuid*(v: CljVal): CljVal =
+  if v.kind != ckString:
+    return cljBool(false)
+  let str = v.strVal
+  var parts = str.split('-')
+  if parts.len == 5 and
+     parts[0].len == 8 and parts[1].len == 4 and parts[2].len == 4 and
+     parts[3].len == 4 and parts[4].len == 12:
+    for p in parts:
+      for c in p:
+        if c notin {'0'..'9', 'a'..'f', 'A'..'F'}:
+          return cljBool(false)
+    return cljBool(true)
+  return cljBool(false)
 proc cljIsIfn*(v: CljVal): CljVal = cljBool(not cljIsNil(v) and v.kind in {ckFn, ckKeyword, ckSymbol, ckMap, ckSet, ckVector})
 proc cljIsBool*(v: CljVal): CljVal = cljBool(not cljIsNil(v) and v.kind == ckBool)
 proc cljIsTrueP*(v: CljVal): CljVal = cljBool(cljIsTrue(v))
@@ -772,10 +834,20 @@ proc cljSortedMap*(args: seq[CljVal]): CljVal =
   # Fallback to regular hash-map
   cljHashMap(args)
 
+proc cljSortedMapBy*(args: seq[CljVal]): CljVal =
+  # Fallback to regular hash-map (ignores comparator)
+  if args.len < 1: return cljMap(@[], @[])
+  cljHashMap(args[1..^1])
+
 proc cljSortedSet*(args: seq[CljVal]): CljVal =
   # Fallback to regular hash-set
   cljHashSet(args)
 
+proc cljSortedSetBy*(args: seq[CljVal]): CljVal =
+  # Fallback to regular hash-set (ignores comparator)
+  if args.len < 1: return cljSet(@[])
+  cljHashSet(args[1..^1])
+
 proc cljArrayMap*(args: seq[CljVal]): CljVal =
   # Fallback to regular hash-map
   cljHashMap(args)
@@ -845,6 +917,14 @@ proc cljToArray*(args: seq[CljVal]): CljVal =
     for c in v.strVal: items.add(cljString($c))
     return cljVector(items)
   else: return cljVector(@[v])
+
+proc cljIntoArray*(args: seq[CljVal]): CljVal =
+  if args.len == 0: return cljVector(@[])
+  if args.len == 1:
+    return cljToArray(@[args[0]])
+  # Ignore type argument, convert last collection argument to vector
+  return cljToArray(@[args[^1]])
+
 proc cljVolatileBang*(args: seq[CljVal]): CljVal =
   if args.len == 0: return cljNil()
   # volatile! creates a mutable holder - stub as atom
@@ -948,6 +1028,19 @@ proc cljDescendants*(args: seq[CljVal]): CljVal =
   if args.len < 1: return cljNil()
   cljSet(@[])
 
+proc cljUseFixtures*(args: seq[CljVal]): CljVal =
+  cljNil()
+
+proc cljAddWatch*(args: seq[CljVal]): CljVal =
+  cljNil()
+
+proc cljRemoveWatch*(args: seq[CljVal]): CljVal =
+  cljNil()
+
+proc cljAlterVarRoot*(args: seq[CljVal]): CljVal =
+  if args.len >= 2: return args[1]
+  cljNil()
+
 proc cljParents*(args: seq[CljVal]): CljVal =
   if args.len < 1: return cljNil()
   cljSet(@[])
@@ -1254,6 +1347,42 @@ proc cljGetDefault*(m: CljVal, key: CljVal, default: CljVal): CljVal =
     else: default
   else: default
 
+proc cljExInfo*(msg: CljVal, data: CljVal): CljVal =
+  var ex = newException(ExInfo, cljStr(msg))
+  ex.exData = data
+  raise ex
+
+proc cljExData*(ex: CljVal): CljVal =
+  if ex.isNil: return cljNil()
+  case ex.kind
+  of ckMap:
+    let data = cljGet(ex, cljKeyword("data"))
+    if data.kind == ckNil:
+      return ex
+    return data
+  else: return cljNil()
+
+proc cljCall*(f: CljVal, args: seq[CljVal]): CljVal =
+  if f.isNil: return cljNil()
+  case f.kind
+  of ckFn:
+    if args.len > 0: return f.fnProc(args)
+    else: return f.fnProc(@[])
+  of ckMap:
+    if args.len > 0: return cljGet(f, args[0])
+    else: return cljNil()
+  of ckSet:
+    if args.len > 0: return cljBool(pmapContains(f.setData, args[0], hash(args[0]), cljEq))
+    else: return cljBool(false)
+  of ckVector:
+    if args.len > 0: return cljNth(f, args[0])
+    else: return cljNil()
+  of ckKeyword:
+    if args.len > 0: return cljGet(args[0], f)
+    else: return cljNil()
+  else:
+    raise newException(CatchableError, "Cannot call value of type " & $f.kind)
+
 proc cljAssoc*(m: CljVal, key: CljVal, val: CljVal): CljVal =
   if m.isNil or m.kind == ckNil:
     return CljVal(kind: ckMap, mapData: pmapAssoc(newPersistentMap[CljVal, CljVal](), key, val, hash(key), cljEq))
@@ -1340,6 +1469,29 @@ proc cljMap*(f: CljVal, coll: CljVal): CljVal =
   if f.kind == ckFn: cljMap(f.fnProc, coll)
   else: raise newException(CatchableError, "map requires a function")
 
+proc cljMapN*(f: CljVal, colls: seq[CljVal]): CljVal =
+  if f.kind != ckFn: raise newException(CatchableError, "map requires a function")
+  let fn = f.fnProc
+  var seqs: seq[seq[CljVal]] = newSeq[seq[CljVal]]()
+  for coll in colls:
+    if coll.isNil:
+      seqs.add(@[])
+    else:
+      case coll.kind
+      of ckList: seqs.add(coll.listItems)
+      of ckVector: seqs.add(toSeq(coll.vecData))
+      else: seqs.add(@[])
+  if seqs.len == 0: return cljList(@[])
+  var res = newSeq[CljVal]()
+  var i = 0
+  while true:
+    var args = newSeq[CljVal]()
+    for s in seqs:
+      if i >= s.len: return cljList(res)
+      args.add(s[i])
+    res.add(fn(args))
+    i += 1
+
 proc cljFilter*(f: proc(args: seq[CljVal]): CljVal, coll: CljVal): CljVal =
   if coll.isNil: return cljList(@[])
   case coll.kind
@@ -1362,6 +1514,15 @@ proc cljReduce*(f: CljVal, init: CljVal, coll: CljVal): CljVal =
   if f.kind == ckFn: cljReduce(f.fnProc, init, coll)
   else: raise newException(CatchableError, "reduce requires a function")
 
+proc cljTransduce*(xform: CljVal, f: CljVal, init: CljVal, coll: CljVal): CljVal =
+  # Stub: apply xform to f and reduce
+  if xform.kind == ckFn and f.kind == ckFn:
+    let rf = xform.fnProc(@[f])
+    if rf.kind == ckFn:
+      return cljReduce(rf, init, coll)
+  # Fallback: just return init
+  return init
+
 proc cljMapv*(f: proc(args: seq[CljVal]): CljVal, coll: CljVal): CljVal =
   if coll.isNil: return cljVector(@[])
   case coll.kind
@@ -1590,9 +1751,32 @@ proc cljAtom*(args: seq[CljVal]): CljVal =
     i += 2
   a
 
+proc cljPromise*(): CljVal =
+  cljAtom(cljNil())
+
 proc cljPromise*(args: seq[CljVal]): CljVal =
   cljAtom(cljNil())
 
+proc cljForce*(v: CljVal): CljVal =
+  if v.kind == ckAtom: v.atomVal
+  else: v
+
+proc cljSleep*(ms: CljVal): CljVal =
+  cljNil()
+
+proc cljTap*(args: seq[CljVal]): CljVal =
+  if args.len >= 1: return args[0]
+  cljNil()
+
+proc cljFutureCancel*(v: CljVal): CljVal =
+  cljNil()
+
+proc cljAddTap*(args: seq[CljVal]): CljVal =
+  cljNil()
+
+proc cljRemoveTap*(args: seq[CljVal]): CljVal =
+  cljNil()
+
 proc cljFuture*(args: seq[CljVal]): CljVal =
   if args.len == 0: return cljAtom(cljNil())
   let f = args[0]
@@ -1621,7 +1805,7 @@ proc cljReset*(a: CljVal, v: CljVal): CljVal =
   else:
     raise newException(CatchableError, "reset! requires an atom")
 
-proc cljSwap*(a: CljVal, f: proc(args: seq[CljVal]): CljVal, args: seq[CljVal]): CljVal =
+proc cljSwapImpl(a: CljVal, f: proc(args: seq[CljVal]): CljVal, args: seq[CljVal]): CljVal =
   if a.kind == ckAtom:
     var fargs = @[a.atomVal]
     fargs.add(args)
@@ -1630,10 +1814,18 @@ proc cljSwap*(a: CljVal, f: proc(args: seq[CljVal]): CljVal, args: seq[CljVal]):
   else:
     raise newException(CatchableError, "swap! requires an atom")
 
-proc cljSwap*(a: CljVal, f: CljVal, args: seq[CljVal] = @[]): CljVal =
+proc cljSwap*(args: seq[CljVal]): CljVal =
-  if f.kind == ckFn: cljSwap(a, f.fnProc, args)
+  if args.len < 2: raise newException(CatchableError, "swap! requires at least 2 arguments")
+  let a = args[0]
+  let f = args[1]
+  let rest = if args.len > 2: args[2..^1] else: @[]
+  if f.kind == ckFn: cljSwapImpl(a, f.fnProc, rest)
   else: raise newException(CatchableError, "swap! requires a function")
 
+proc cljVswap*(args: seq[CljVal]): CljVal =
+  # Treat volatile like atom for now
+  cljSwap(args)
+
 # ---- Agents ----
 
 proc cljAgent*(v: CljVal): CljVal =

src/emitter.nim

@@ -1,5 +1,5 @@
 # Clojure → Nim Emitter
-import strutils, sets
+import strutils, sets, algorithm
 import types
 import macros
 
@@ -67,7 +67,7 @@ proc mangleName*(name: string): string =
                      "raise", "import", "export", "from", "include", "using", "bind",
                      "mixin", "asm", "defer", "block", "static", "yield", "assert",
                      "do", "enum", "tuple", "shared", "guard", "concept", "distinct",
-                     "interface", "lambda", "open", "quit", "result", "nil"]
+                     "interface", "lambda", "open", "quit", "result", "nil", "end"]
   if result in nimKeywords:
     result = result & "1"
 
@@ -182,8 +182,26 @@ proc runtimeName(op: string): string =
   of "zipmap": "cljZipmap"
   of "object-array": "cljObjectArray"
   of "sorted-map": "cljSortedMap"
+  of "sorted-map-by": "cljSortedMapBy"
   of "sorted-set": "cljSortedSet"
+  of "sorted-set-by": "cljSortedSetBy"
   of "sorted?": "cljSortedQ"
+  of "use-fixtures": "cljUseFixtures"
+  of "transduce": "cljTransduce"
+  of "vswap!": "cljVswap"
+  of "split": "cljStrSplit"
+  of "str/split": "cljStrSplit"
+  of "add-watch": "cljAddWatch"
+  of "remove-watch": "cljRemoveWatch"
+  of "ex-info": "cljExInfo"
+  of "ex-data": "cljExData"
+  of "alter-var-root": "cljAlterVarRoot"
+  of "force": "cljForce"
+  of "sleep": "cljSleep"
+  of "tap>": "cljTap"
+  of "future-cancel": "cljFutureCancel"
+  of "add-tap": "cljAddTap"
+  of "remove-tap": "cljRemoveTap"
   of "array-map": "cljArrayMap"
   of "rseq": "cljRseq"
   of "list": "cljListEmpty"
@@ -262,6 +280,8 @@ proc runtimeName(op: string): string =
   of "deliver": "cljDeliver"
   of "var?": "cljIsVar"
   of "ifn?": "cljIsIfn"
+  of "parse-uuid": "cljParseUuid"
+  of "uuid?": "cljIsUuid"
   of "ancestors": "cljAncestors"
   of "descendants": "cljDescendants"
   of "parents": "cljParents"
@@ -283,6 +303,7 @@ proc runtimeName(op: string): string =
   of "fnil": "cljFnil"
   of "intern": "cljIntern"
   of "to-array": "cljToArray"
+  of "into-array": "cljIntoArray"
   of "repeatedly": "cljRepeatedly"
   of "make-hierarchy": "cljMakeHierarchy"
   of "derive": "cljDerive"
@@ -339,14 +360,64 @@ proc emitFnAsProc(items: seq[CljVal], indent: int): string =
   else:
     bodyCode = emitBlock(body, indent + 1)
   popScope()
+  let sp = indentStr(indent)
   if bodyCode.find("\n") == -1:
-    return "(proc (" & paramNames.join(", ") & "): CljVal = " & bodyCode.strip() & ")"
+    return sp & "(proc (" & paramNames.join(", ") & "): CljVal = " & bodyCode.strip() & ")"
   else:
-    return "(proc (" & paramNames.join(", ") & "): CljVal =\n" & bodyCode & ")"
+    return sp & "(proc (" & paramNames.join(", ") & "): CljVal =\n" & bodyCode & ")"
+
+proc letDestructuredBindings(bindings: CljVal): CljVal =
+  # Expand let bindings with vector/map destructuring into simple symbol bindings
+  if bindings.kind != ckVector:
+    return bindings
+  var result: seq[CljVal] = @[]
+  var i = 0
+  while i < bindings.items.len:
+    let bname = bindings.items[i]
+    let bval = bindings.items[i+1]
+    if bname.kind == ckSymbol:
+      result.add(bname)
+      result.add(bval)
+    elif bname.kind == ckVector:
+      let tmp = cljSymbol("ds_" & $i)
+      result.add(tmp)
+      result.add(bval)
+      for j in 0..<bname.items.len:
+        if bname.items[j].kind == ckSymbol:
+          result.add(bname.items[j])
+          result.add(cljList(@[cljSymbol("nth"), tmp, cljInt(j)]))
+    elif bname.kind == ckMap:
+      let tmp = cljSymbol("ds_" & $i)
+      result.add(tmp)
+      result.add(bval)
+      var hasAs = false
+      var asName: CljVal = nil
+      var j = 0
+      while j < bname.mapKeys.len:
+        let key = bname.mapKeys[j]
+        let val = bname.mapVals[j]
+        if key.kind == ckKeyword and key.kwName == "keys" and val.kind == ckVector:
+          for k in 0..<val.items.len:
+            if val.items[k].kind == ckSymbol:
+              result.add(val.items[k])
+              result.add(cljList(@[cljSymbol("get"), tmp, cljKeyword(val.items[k].symName)]))
+        elif key.kind == ckKeyword and key.kwName == "as":
+          hasAs = true
+          asName = val
+        j += 1
+      if hasAs and asName != nil and asName.kind == ckSymbol:
+        result.add(asName)
+        result.add(tmp)
+    i += 2
+  return cljVector(result)
 
 proc emitSpecialForm(items: seq[CljVal], indent: int): string =
   let sp = indentStr(indent)
   let head = items[0]
+  if head.kind == ckSymbol:
+    stderr.writeLine("DEBUG emitSpecialForm head=", head.symName)
+  if head.kind == ckSymbol and head.symName == "fn*":
+    stderr.writeLine("DEBUG emitSpecialForm fn* reached, op=", resolveNsAlias(head.symName))
   if head.kind != ckSymbol:
     # Head is not a symbol - evaluate as function call: ((fn ...) args...)
     var argParts: seq[string] = @[]
@@ -529,11 +600,14 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     if name.kind != ckSymbol:
       raise newException(EmitterError, "def name must be a symbol")
     let mangled = mangleName(name.symName)
+    addToScope(name.symName)
     let valForm = items[2]
     # Special handling: (def name (fn ...)) should emit raw proc, not cljFn wrapper
     let isFnDef = valForm.kind == ckList and valForm.items.len > 0 and
                   valForm.items[0].kind == ckSymbol and valForm.items[0].symName == "fn"
+    stderr.writeLine("DEBUG def mangled=", mangled, " indent=", indent, " items.len=", items.len, " isFnDef=", isFnDef)
     if indent == 0:
+      stderr.writeLine("DEBUG def indent=0 branch")
       if isFnDef:
         # Emit fn as raw proc for def context
         let oldEmitLibMode = emitLibMode
@@ -544,15 +618,17 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       let valCode = emitExpr(items[2], 0)
       return sp & "let " & mangled & " = " & valCode
     else:
-      # For nested def: wrap in proc and use consistent indentation
+      stderr.writeLine("DEBUG def indent>0 branch")
+      # For nested def: use global var so it's accessible from closures
       if isFnDef:
         let oldEmitLibMode = emitLibMode
         emitLibMode = false
-        let valCode = emitFnAsProc(valForm.items, indent + 2)
+        let valCode = emitFnAsProc(valForm.items, indent)
         emitLibMode = oldEmitLibMode
-        return sp & "((proc (): CljVal =\n" & indentStr(indent + 1) & "let " & mangled & " = " & valCode.strip() & "\n" & indentStr(indent + 1) & mangled & ")())"
+        return sp & "var " & mangled & " {.global.} = " & valCode.strip() & "\n" & sp & mangled
-      let valCode = emitExpr(items[2], indent + 2)
+      let valCode = emitExpr(items[2], indent)
-      return sp & "((proc (): CljVal =\n" & indentStr(indent + 1) & "let " & mangled & " = " & valCode.strip() & "\n" & indentStr(indent + 1) & mangled & ")())"
+      stderr.writeLine("DEBUG def about to return var global for ", mangled)
+      return sp & "var " & mangled & " {.global.} = " & valCode.strip() & "\n" & sp & mangled
 
   of "defn":
     if items.len < 3:
@@ -574,7 +650,6 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       addToScope(p.symName)
       paramNames.add(mangleName(p.symName) & ": CljVal")
     let body = items[3..^1]
-    popScope()
     let procName = mangleName(name.symName)
     let exportMarker = if emitLibMode: "*" else: ""
     if indent == 0:
@@ -585,6 +660,7 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
         bodyCode = emitExpr(body[0], indent + 1)
       else:
         bodyCode = emitBlock(body, indent + 1)
+      popScope()
       return sp & "proc " & procName & exportMarker & "(" & paramNames.join(", ") & "): CljVal =\n" & bodyCode
     else:
       var bodyCode = ""
@@ -592,9 +668,10 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
         bodyCode = emitExpr(body[0], indent + 2)
       else:
         bodyCode = emitBlock(body, indent + 2)
+      popScope()
       return sp & "(block:\n" &
         indentStr(indent + 1) & "proc " & procName & "(" & paramNames.join(", ") & "): CljVal =\n" & bodyCode & "\n" &
-        indentStr(indent + 1) & procName & ")"
+        indentStr(indent + 1) & "cljNil())"
 
   of "defn-":
     if items.len < 3:
@@ -629,12 +706,15 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     return sp & "proc " & procName & "(" & paramNames.join(", ") & "): CljVal {.used.} =\n" & bodyCode
 
   of "fn":
+    stderr.writeLine("DEBUG emitSpecialForm fn indent=", indent)
     if items.len < 2:
       raise newException(EmitterError, "fn requires params")
     var paramsIdx = 1
+    var fnName = ""
     # Handle named fn: (fn name [params] body)
     if items[1].kind == ckSymbol:
       paramsIdx = 2
+      fnName = items[1].symName
     if paramsIdx >= items.len:
       raise newException(EmitterError, "fn requires params and body")
     var params = items[paramsIdx]
@@ -647,6 +727,8 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     let paramCount = params.items.len
     pushScope()
     var paramNames: seq[string] = @[]
+    if fnName.len > 0:
+      addToScope(fnName)
     for p in params.items:
       if p.kind != ckSymbol:
         raise newException(EmitterError, "fn params must be symbols")
@@ -664,27 +746,40 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     if paramCount > 0:
       for i in 0..<paramCount:
         argsLines.add(indentStr(indent + 1) & "let " & paramNames[i] & " = args[" & $i & "]")
+    var fnBodyLines: seq[string] = @[]
     if argsLines.len > 0:
-      # Multi-line: let bindings on separate lines, then body
-      var allLines: seq[string] = @[]
       for a in argsLines:
-        allLines.add(a)
+        fnBodyLines.add(a)
     if bodyCode.find("\n") == -1:
-        allLines.add(indentStr(indent + 1) & bodyCode.strip())
+      fnBodyLines.add(indentStr(indent + 1) & bodyCode.strip())
     else:
-        allLines.add(bodyCode)
+      fnBodyLines.add(bodyCode)
-      return sp & "cljFn(proc(args: seq[CljVal]): CljVal =\n" & allLines.join("\n") & ")"
+    if fnName.len > 0 or argsLines.len > 0 or bodyCode.find("\n") != -1:
+      # Wrap in IIFE to avoid indentation issues when used as an argument
+      var wrapperLines: seq[string] = @[]
+      stderr.writeLine("DEBUG fn indent=", indent, " spLen=", sp.len, " indent+1Len=", indentStr(indent+1).len)
+      wrapperLines.add(sp & "((proc (): CljVal =")
+      var tempName: string
+      if fnName.len > 0:
+        tempName = mangleName(fnName)
+      else:
+        tempName = "fnResult"
+      wrapperLines.add(indentStr(indent + 1) & "var " & tempName & ": CljVal")
+      wrapperLines.add(indentStr(indent + 1) & tempName & " = cljFn(proc(args: seq[CljVal]): CljVal =")
+      let indentedFnBody = indentCode(fnBodyLines.join("\n"), 1)
+      for line in indentedFnBody.split("\n"):
+        wrapperLines.add(line)
+      wrapperLines.add(indentStr(indent + 1) & ")")
+      wrapperLines.add(indentStr(indent + 1) & tempName)
+      wrapperLines.add(sp & ")())")
+      return wrapperLines.join("\n")
     else:
-      # No params - simple case
-      if bodyCode.find("\n") == -1:
       return sp & "cljFn(proc(args: seq[CljVal]): CljVal = " & bodyCode.strip() & ")"
-      else:
-        return sp & "cljFn(proc(args: seq[CljVal]): CljVal =\n" & bodyCode & ")"
 
   of "let":
     if items.len < 3:
       raise newException(EmitterError, "let requires bindings and body")
-    let bindings = items[1]
+    var bindings = letDestructuredBindings(items[1])
     if bindings.kind != ckVector:
       raise newException(EmitterError, "let bindings must be a vector")
     if bindings.items.len mod 2 != 0:
@@ -697,9 +792,20 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       let bname = bindings.items[bi]
       let bval = bindings.items[bi+1]
       if bname.kind != ckSymbol:
-        raise newException(EmitterError, "let binding name must be a symbol")
+        raise newException(EmitterError, "let binding name must be a symbol, got " & $bname.kind & ": " & $bname)
       addToScope(bname.symName)
-      lines.add(indentStr(indent + 1) & "let " & mangleName(bname.symName) & " = " & emitExpr(bval, indent + 1))
+      let bcode = emitExpr(bval, indent + 1)
+      if bcode.find("\n") != -1:
+        # Multi-line value: use var and place first line on next line for correct indentation
+        lines.add(indentStr(indent + 1) & "var " & mangleName(bname.symName) & ": CljVal")
+        var bcodeLines = bcode.split("\n")
+        for j, line in bcodeLines:
+          if j == 0:
+            lines.add(indentStr(indent + 1) & mangleName(bname.symName) & " = " & line)
+          else:
+            lines.add(line)
+      else:
+        lines.add(indentStr(indent + 1) & "let " & mangleName(bname.symName) & " = " & bcode)
       bi += 2
     let body = items[2..^1]
     for j, b in body:
@@ -708,7 +814,11 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
         lines.add(bcode)
       else:
         let stripped = bcode.strip()
-        if stripped.startsWith("echo ") or stripped.startsWith("discard ") or
+        if stripped.contains("\n"):
+          # Multi-line expression as non-last form: wrap in proc
+          let indentedCode = indentCode(bcode, 1)
+          lines.add(indentStr(indent + 1) & "discard ((proc (): CljVal =\n" & indentedCode & "\n" & indentStr(indent + 1) & ")())")
+        elif stripped.startsWith("echo ") or stripped.startsWith("discard ") or
            stripped.startsWith("if ") or stripped.startsWith("try:") or
            stripped.startsWith("var ") or stripped.startsWith("let ") or
            stripped.startsWith("proc ") or stripped.startsWith("while "):
@@ -751,13 +861,26 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     for bi, b in body:
       let bcode = emitExpr(b, indent + 1)
       let stripped = bcode.strip()
+      let isLast = (bi == body.len - 1)
       let isStatement = stripped.startsWith("echo ") or stripped.startsWith("discard ") or
                         stripped.startsWith("var ") or stripped.startsWith("let ") or
-                        stripped.startsWith("proc ") or stripped.startsWith("block:") or
+                        stripped.startsWith("proc ") or
                         stripped.startsWith("if ") or stripped.startsWith("try:") or
                         stripped.startsWith("while ") or stripped.contains("continue")
-      if isStatement:
+      if isLast or isStatement:
         lines.add(bcode)
+      elif stripped.startsWith("block:"):
+        # Multi-line block as non-last form: discard the last line
+        var blockLines = bcode.split("\n")
+        var lastIdx = blockLines.len - 1
+        while lastIdx >= 0 and blockLines[lastIdx].strip() == "":
+          lastIdx.dec
+        if lastIdx >= 0:
+          let lastLine = blockLines[lastIdx].strip()
+          if not lastLine.startsWith("discard ") and not lastLine.startsWith("result = "):
+            let prefixLen = blockLines[lastIdx].len - blockLines[lastIdx].strip().len
+            blockLines[lastIdx] = blockLines[lastIdx][0..<prefixLen] & "discard " & lastLine
+        lines.add(blockLines.join("\n"))
       else:
         lines.add(indentStr(indent + 1) & "discard " & stripped)
     lines.add(sp & "else:")
@@ -794,8 +917,31 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     loopStack.add(loopVars)
     lines.add(sp & "while true:")
     let body = items[2..^1]
-    for b in body:
+    for bi, b in body:
-      lines.add(emitExpr(b, indent + 1))
+      let bcode = emitExpr(b, indent + 1)
+      let stripped = bcode.strip()
+      let isLast = (bi == body.len - 1)
+      let isStatement = stripped.startsWith("echo ") or stripped.startsWith("discard ") or
+                        stripped.startsWith("var ") or stripped.startsWith("let ") or
+                        stripped.startsWith("proc ") or
+                        stripped.startsWith("if ") or stripped.startsWith("try:") or
+                        stripped.startsWith("while ") or stripped.contains("continue")
+      if isLast or isStatement:
+        lines.add(bcode)
+      elif stripped.startsWith("block:"):
+        # Multi-line block as non-last form: discard the last line
+        var blockLines = bcode.split("\n")
+        var lastIdx = blockLines.len - 1
+        while lastIdx >= 0 and blockLines[lastIdx].strip() == "":
+          lastIdx.dec
+        if lastIdx >= 0:
+          let lastLine = blockLines[lastIdx].strip()
+          if not lastLine.startsWith("discard ") and not lastLine.startsWith("result = "):
+            let prefixLen = blockLines[lastIdx].len - blockLines[lastIdx].strip().len
+            blockLines[lastIdx] = blockLines[lastIdx][0..<prefixLen] & "discard " & lastLine
+        lines.add(blockLines.join("\n"))
+      else:
+        lines.add(indentStr(indent + 1) & "discard " & stripped)
     lines.add(indentStr(indent + 1) & "break")
     discard loopStack.pop()
     popScope()
@@ -838,15 +984,25 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       if form.kind == ckList and form.items.len > 0 and form.items[0].kind == ckSymbol:
         if form.items[0].symName == "catch":
           if form.items.len < 3:
-            raise newException(EmitterError, "catch requires exception type, name, and body")
+            raise newException(EmitterError, "catch requires at least name and body")
-          let exType = form.items[1]
           var exTypeStr = "CatchableError"
-          if exType.kind == ckSymbol:
+          var nameIdx = 2
-            exTypeStr = exType.symName
+          var bodyIdx = 3
-          let exName = form.items[2]
+          if form.items[1].kind == ckSymbol and form.items.len >= 4:
+            exTypeStr = form.items[1].symName
+          elif form.items[1].kind == ckKeyword:
+            if form.items[1].kwName == "default":
+              exTypeStr = "CatchableError"
+            else:
+              exTypeStr = form.items[1].kwName
+          else:
+            # (catch name body...)
+            nameIdx = 1
+            bodyIdx = 2
+          let exName = form.items[nameIdx]
           if exName.kind != ckSymbol:
             raise newException(EmitterError, "catch name must be a symbol")
-          catchClauses.add((exTypeStr, mangleName(exName.symName), form.items[3..^1]))
+          catchClauses.add((exTypeStr, mangleName(exName.symName), form.items[bodyIdx..^1]))
         elif form.items[0].symName == "finally":
           finallyBody = form.items[1..^1]
         else:
@@ -876,6 +1032,9 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       lines.add(sp & "except " & exType & ":")
       lines.add(indentStr(indent + 1) & "let " & exVar & " = cljMap(@[cljKeyword(\"message\")], @[cljString(getCurrentExceptionMsg())])")
       lines.add(indentStr(indent + 1) & "discard cljAssoc(" & exVar & ", cljKeyword(\"type\"), cljString(\"" & exType & "\"))")
+      lines.add(indentStr(indent + 1) & "let exPtr" & exVar & " = getCurrentException()")
+      lines.add(indentStr(indent + 1) & "if exPtr" & exVar & " of ExInfo:")
+      lines.add(indentStr(indent + 2) & "discard cljAssoc(" & exVar & ", cljKeyword(\"data\"), (ref ExInfo)(exPtr" & exVar & ").exData)")
       for i, eb in exBody:
         let isLast = (i == exBody.len - 1)
         let code = emitExpr(eb, indent + 1)
@@ -945,17 +1104,50 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       return emitExpr(quoted, indent)
 
   of "map":
-    if items.len != 3:
+    if items.len < 3:
-      raise newException(EmitterError, "map requires exactly 2 arguments (f, coll)")
+      raise newException(EmitterError, "map requires at least 2 arguments (f, coll)")
     let fnArg = items[1]
-    let collArg = emitExpr(items[2], 0)
+    let isVariadic = items.len > 3
+    var collArgs: seq[string] = @[]
+    for idx in 2..<items.len:
+      collArgs.add(emitExpr(items[idx], 0))
+    if isVariadic:
+      # Multiple collections: use cljMapN
+      let collList = "@[" & collArgs.join(", ") & "]"
       if fnArg.kind == ckSymbol:
         let rn = runtimeName(fnArg.symName)
         if rn.len > 0:
-        return sp & "cljMap(cljFn(proc(args: seq[CljVal]): CljVal = " & rn & "(args)), " & collArg & ")"
+          return sp & "cljMapN(cljFn(proc(args: seq[CljVal]): CljVal = " & rn & "(args)), " & collList & ")"
+        return sp & "cljMapN(cljFn(proc(args: seq[CljVal]): CljVal = " & mangleName(fnArg.symName) & "(args)), " & collList & ")"
+      elif fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol and fnArg.items[0].symName in ["fn", "fn*"]:
+        let fnParams = fnArg.items[1]
+        let fnBody = fnArg.items[2..^1]
+        var pNames: seq[string] = @[]
+        for p in fnParams.items:
+          pNames.add(mangleName(p.symName))
+        var bodyExpr = ""
+        if fnBody.len == 1:
+          bodyExpr = emitExpr(fnBody[0], 0).strip()
+        else:
+          var parts: seq[string] = @[]
+          for b in fnBody:
+            parts.add(emitExpr(b, 0).strip())
+          bodyExpr = parts.join("; ")
+        var letBindings = ""
+        for j in 0..<pNames.len:
+          letBindings.add("let " & pNames[j] & " = args[" & $j & "]; ")
+        let fnProc = "proc(args: seq[CljVal]): CljVal = (" & letBindings & bodyExpr & ")"
+        return sp & "cljMapN(cljFn(" & fnProc & "), " & collList & ")"
+      else:
+        return sp & "cljMapN(" & emitExpr(fnArg, 0) & ", " & collList & ")"
+    else:
+      let collArg = collArgs[0]
+      if fnArg.kind == ckSymbol:
+        let rn = runtimeName(fnArg.symName)
+        if rn.len > 0:
+          return sp & "cljMap(cljFn(proc(args: seq[CljVal]): CljVal = " & rn & "(args[0])), " & collArg & ")"
         return sp & "cljMap(cljFn(proc(args: seq[CljVal]): CljVal = " & mangleName(fnArg.symName) & "(args[0])), " & collArg & ")"
-    elif fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol and fnArg.items[0].symName == "fn":
+      elif fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol and fnArg.items[0].symName in ["fn", "fn*"]:
-      # Inline fn: (map (fn [x] ...) coll)
         let fnParams = fnArg.items[1]
         let fnBody = fnArg.items[2..^1]
         var pNames: seq[string] = @[]
@@ -979,7 +1171,9 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       raise newException(EmitterError, "filter requires exactly 2 arguments")
     let fnArg = items[1]
     let collArg = emitExpr(items[2], 0)
-    if fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol and fnArg.items[0].symName == "fn":
+    let isFn = fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol and fnArg.items[0].symName in ["fn", "fn*"]
+    stderr.writeLine("DEBUG filter isFn=", isFn, " symName=", (if fnArg.kind == ckList and fnArg.items.len > 0 and fnArg.items[0].kind == ckSymbol: fnArg.items[0].symName else: "N/A"))
+    if isFn:
       let fnParams = fnArg.items[1]
       let fnBody = fnArg.items[2..^1]
       var pNames: seq[string] = @[]
@@ -997,7 +1191,7 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       let fnProc = "proc(args: seq[CljVal]): CljVal = (let " & pNames[0] & " = args[0]; " & bodyExpr & ")"
       return sp & "cljFilter(cljFn(" & fnProc & "), " & collArg & ")"
     else:
-      return sp & "cljFilter(" & emitExpr(fnArg, 0) & ", " & collArg & ")"
+      return sp & "cljFilter(" & emitExpr(fnArg, indent) & ", " & collArg & ")"
 
   of "reduce":
     if items.len < 3 or items.len > 4:
@@ -1057,6 +1251,26 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
   of "partial":
     var parts: seq[string] = @[]
     for i in 1..<items.len:
+      if items[i].kind == ckList and items[i].items.len > 0 and items[i].items[0].kind == ckSymbol and items[i].items[0].symName in ["fn", "fn*"]:
+        let fnParams = items[i].items[1]
+        let fnBody = items[i].items[2..^1]
+        var pNames: seq[string] = @[]
+        for p in fnParams.items:
+          pNames.add(mangleName(p.symName))
+        var bodyExpr = ""
+        if fnBody.len == 1:
+          bodyExpr = emitExpr(fnBody[0], 0).strip()
+        else:
+          var bodyParts: seq[string] = @[]
+          for b in fnBody:
+            bodyParts.add(emitExpr(b, 0).strip())
+          bodyExpr = bodyParts.join("; ")
+        var letBindings = ""
+        for j in 0..<pNames.len:
+          letBindings.add("let " & pNames[j] & " = args[" & $j & "]; ")
+        let fnProc = "proc(args: seq[CljVal]): CljVal = (" & letBindings & bodyExpr & ")"
+        parts.add("cljFn(" & fnProc & ")")
+      else:
         parts.add(emitExpr(items[i], 0))
     return sp & "cljPartial(" & parts[0] & ", @[" & parts[1..^1].join(", ") & "])"
 
@@ -1215,8 +1429,9 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     return emitExpr(fnForm, indent)
 
   of "bound-fn*":
-    let fnForm = cljList(@[cljSymbol("fn")] & items[1..^1])
+    if items.len < 2:
-    return emitExpr(fnForm, indent)
+      raise newException(EmitterError, "bound-fn* requires a function argument")
+    return emitExpr(items[1], indent)
 
   of "promise":
     if items.len < 1: return sp & "cljPromise()"
@@ -1322,10 +1537,7 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
         parts.add(emitExpr(item, 0))
       return sp & "cljSet(@[" & parts.join(", ") & "])"
     of ckList:
-      var parts: seq[string] = @[]
+      return sp & "cljSet(" & emitExpr(arg, 0) & ")"
-      for item in arg.items:
-        parts.add(emitExpr(item, 0))
-      return sp & "cljSet(@[" & parts.join(", ") & "])"
     else:
       return sp & "cljSet(@[" & emitExpr(arg, 0) & "])"
 
@@ -1444,12 +1656,14 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
     if rn.len > 0:
       var argParts: seq[string] = @[]
       for i in 1..<items.len:
+        if items[i].kind == ckList and items[i].items.len > 0 and items[i].items[0].kind == ckSymbol and items[i].items[0].symName in ["fn", "fn*"]:
+          stderr.writeLine("DEBUG runtimeCall fn arg indent=", indent)
         argParts.add(emitExpr(items[i], indent))
       # Variadic functions take seq[CljVal]
       let variadic = op in ["+", "-", "*", "/", "=", ">", "<", ">=", "<=", "not=",
                              "println", "prn", "print", "str", "pr-str",
                              "atom", "concat", "min", "max", "merge", "interleave",
-                             "zipmap", "hash-map", "hash-set", "sorted-map", "sorted-set", "cons",
+                             "zipmap", "hash-map", "hash-set", "sorted-map", "sorted-map-by", "sorted-set", "sorted-set-by", "cons", "use-fixtures", "vswap!", "swap!", "tap>", "add-tap", "remove-tap", "add-watch", "remove-watch", "alter-var-root",
                              "array-map", "inf", "nan", "list",
                              "float", "int", "double", "long", "short", "byte",
                              "boolean", "num", "number",
@@ -1461,7 +1675,7 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
                              "drop-last", "shuffle", "repeatedly", "fnil", "intern",
                              "println-str", "prn-str", "binding", "aset",
                              "volatile!", "deliver", "doall", "dorun",
-                             "to-array", "vector", "rand", "rand-int",
+                             "to-array", "into-array", "vector", "rand", "rand-int",
                              "rand-nth", "random-sample"]
       var call: string
       if variadic:
@@ -1480,8 +1694,8 @@ proc emitSpecialForm(items: seq[CljVal], indent: int): string =
       callOp = callOp[0..^2]
     let mangled = mangleName(callOp)
     if isLocalVar(callOp):
-      # Local cljFn value: call via .fnProc
+      # Local value (may be fn, map, set, vector, keyword) — use runtime dispatch
-      return sp & mangled & ".fnProc(@[" & args.join(", ") & "])"
+      return sp & "cljCall(" & mangled & ", @[" & args.join(", ") & "])"
     return sp & mangled & "(" & args.join(", ") & ")"
 
 proc emitQuotedForm*(v: CljVal): string =
@@ -1539,7 +1753,7 @@ proc emitExpr*(v: CljVal, indent: int = 0): string =
       let variadic = symName in ["+", "-", "*", "/", "=", ">", "<", ">=", "<=", "not=",
                                   "println", "prn", "print", "str", "pr-str",
                                   "atom", "concat", "min", "max", "merge", "interleave",
-                                  "zipmap", "hash-map", "hash-set", "sorted-map", "sorted-set", "cons",
+                                  "zipmap", "hash-map", "hash-set", "sorted-map", "sorted-map-by", "sorted-set", "sorted-set-by", "cons", "use-fixtures", "vswap!", "swap!", "tap>", "add-tap", "remove-tap", "add-watch", "remove-watch", "alter-var-root",
                                   "array-map", "inf", "nan", "list",
                                   "float", "int", "double", "long", "short", "byte",
                                   "boolean", "num", "number",
@@ -1551,7 +1765,7 @@ proc emitExpr*(v: CljVal, indent: int = 0): string =
                                   "drop-last", "shuffle", "repeatedly", "fnil", "intern",
                                   "println-str", "prn-str", "binding", "aset",
                                   "volatile!", "deliver", "doall", "dorun",
-                                  "to-array", "vector", "rand", "rand-int",
+                                  "to-array", "into-array", "vector", "rand", "rand-int",
                                   "rand-nth", "random-sample"]
       if variadic:
         return sp & "cljFn(proc(args: seq[CljVal]): CljVal = " & rn & "(args))"
@@ -1602,6 +1816,8 @@ proc emitBlock(items: seq[CljVal], indent: int, useResult: bool = false): string
   var lines: seq[string] = @[]
   for i, item in items:
     var code = emitExpr(item, indent)
+    if code.contains("testvar_a"):
+      stderr.writeLine("DEBUG emitBlock indent=", indent, " code=", code.repr)
     let stripped = code.strip()
     if i < items.len - 1:
       let firstNl = code.find("\n")
@@ -1620,6 +1836,8 @@ proc emitBlock(items: seq[CljVal], indent: int, useResult: bool = false): string
         # Wrap multi-line expression in proc so discard can apply
         let indentedCode = indentCode(code, 1)
         code = indentStr(indent) & "discard ((proc (): CljVal =\n" & indentedCode & "\n" & indentStr(indent) & ")())"
+        if code.contains("testvar_a"):
+          stderr.writeLine("DEBUG emitBlock after wrap has var=", code.contains("var testvar_a"), " has let=", code.contains("let testvar_a"))
     elif useResult:
       if stripped.startsWith("discard "):
         code = indentStr(indent) & "result = " & stripped[8..^1]
@@ -1635,6 +1853,11 @@ proc emitBlock(items: seq[CljVal], indent: int, useResult: bool = false): string
   return lines.join("\n")
 
 proc emitProgramInternal(forms: seq[CljVal]): string =
+  stderr.writeLine("DEBUG emitProgramInternal forms.len=", forms.len)
+  if forms.len > 0 and forms[0].kind == ckList and forms[0].items.len > 0 and forms[0].items[0].kind == ckSymbol:
+    stderr.writeLine("DEBUG emitProgramInternal forms[0]=", forms[0].items[0].symName, " forms[0].len=", forms[0].items.len)
+  scopeStack = @[]
+  pushScope()
   requiredImports = initHashSet[string]()
   var headerLines: seq[string] = @[
     "# Generated by Clojure/Nim",
@@ -1657,6 +1880,7 @@ proc emitProgramInternal(forms: seq[CljVal]): string =
     # Recurse into (do ...) forms produced by macro expansion
     if headSym and headName == "do":
       let subForms = ef.items[1..^1]
+      stderr.writeLine("DEBUG processOneForm do subForms.len=", subForms.len)
       for j in countdown(subForms.len - 1, 0):
         let subLast = isLast and (j == subForms.len - 1)
         worklist.add((subForms[j], subLast))
@@ -1664,12 +1888,19 @@ proc emitProgramInternal(forms: seq[CljVal]): string =
     let isDef = headSym and headName in ["def", "defn", "defn-", "defprotocol", "defrecord", "deftype", "defmulti", "defmethod", "var"]
     let isMacro = headSym and headName in ["defmacro"]
     let isNs = headSym and headName == "ns"
+    if headName == "def" and ($form).contains("testvar"):
+      stderr.writeLine("DEBUG processOneForm testvar isDef=", isDef, " headName=", headName)
     if isNs:
       discard
     elif isDef or isMacro:
-      defs.add(emitExpr(ef, 0))
+      let defCode = emitExpr(ef, 0)
+      if defCode.contains("testvar_a"):
+        stderr.writeLine("DEBUG defs adding testvar_a code=", defCode.repr)
+      defs.add(defCode)
     else:
       let code = emitExpr(ef, 2)
+      if code.contains("testvar_a"):
+        stderr.writeLine("DEBUG emitProgramInternal adding testvar_a to mainForms")
       let stripped = code.strip()
       if stripped.startsWith("echo ") or stripped.startsWith("discard ") or
          stripped.startsWith("var "):
@@ -1686,14 +1917,29 @@ proc emitProgramInternal(forms: seq[CljVal]): string =
       for j in countdown(subForms.len - 1, 0):
         let subLast = isLast and (j == subForms.len - 1)
         worklist.add((subForms[j], subLast))
+    elif form.kind == ckList and form.items.len == 2 and
+         form.items[0].kind == ckSymbol and form.items[0].symName == "splice-unwrap":
+      stderr.writeLine("DEBUG unwrapOneForm splice-unwrap")
+      let inner = form.items[1]
+      if inner.kind == ckVector:
+        stderr.writeLine("DEBUG unwrapOneForm splice-unwrap vector len=", inner.items.len)
+        for j in countdown(inner.items.len - 1, 0):
+          let subLast = isLast and (j == inner.items.len - 1)
+          worklist.add((inner.items[j], subLast))
+      else:
+        processOneForm(form, isLast)
     else:
       processOneForm(form, isLast)
 
-  for i, form in forms:
+  for i in countdown(forms.len - 1, 0):
-    worklist.add((form, i == forms.len - 1))
+    if forms[i].kind == ckList and forms[i].items.len > 0 and forms[i].items[0].kind == ckSymbol and forms[i].items[0].symName == "def" and ($forms[i]).contains("testvar"):
+      stderr.writeLine("DEBUG forms adding testvar to worklist")
+    worklist.add((forms[i], i == forms.len - 1))
 
   while worklist.len > 0:
     let (item, itemIsLast) = worklist.pop()
+    if item.kind == ckList and item.items.len > 0 and item.items[0].kind == ckSymbol:
+      stderr.writeLine("DEBUG worklist popping ", item.items[0].symName)
     unwrapOneForm(item, itemIsLast)
 
   var lines = headerLines
@@ -1701,7 +1947,8 @@ proc emitProgramInternal(forms: seq[CljVal]): string =
   for imp in requiredImports:
     lines.add("import " & imp)
   lines.add("")
-  lines.add(defs)
+  for d in defs:
+    lines.add(d)
 
   if mainForms.len > 0:
     lines.add("")