From fb053dd81eca9a45a813a7d7b0de868c28203976 Mon Sep 17 00:00:00 2001
From: Ganesh Viswanathan <dev@genotrance.com>
Date: Tue, 27 Nov 2018 16:58:11 -0600
Subject: Cleanup

---
 nimterop/ast.nim     |  3 +++
 nimterop/cimport.nim | 20 ++++++++++----------
 nimterop/lisp.nim    |  6 +++---
 3 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/nimterop/ast.nim b/nimterop/ast.nim
index a84f503..cc1cd61 100644
--- a/nimterop/ast.nim
+++ b/nimterop/ast.nim
@@ -228,6 +228,9 @@ proc pDeclaration*(node: ref Ast) =
         pFunctionDeclarator(node.children[1], styp)
 
 proc genNimAst*(node: ref Ast) =
+  if node.isNil:
+    return
+
   case node.sym:
     of ERROR:
       let (line, col) = getLineCol(node)
diff --git a/nimterop/cimport.nim b/nimterop/cimport.nim
index 8a85145..9c63665 100644
--- a/nimterop/cimport.nim
+++ b/nimterop/cimport.nim
@@ -33,11 +33,11 @@ macro cDebug*(): untyped =
 
 macro cDefine*(name: static string, val: static string = ""): untyped =
   result = newNimNode(nnkStmtList)
-  
+
   var str = name
   if val.nBl:
     str &= &"=\"{val}\""
-  
+
   if str notin gDefines:
     gDefines.add(str)
     str = "-D" & str
@@ -69,7 +69,7 @@ macro cIncludeDir*(dir: static string): untyped =
     result.add(quote do:
       {.passC: `str`.}
     )
-  
+
   if gDebug:
     echo result.repr
 
@@ -85,7 +85,7 @@ macro cAddStdDir*(mode = "c"): untyped =
       continue
     elif "End of search list" in line:
       break
-    
+
     if inc:
       let sline = line.strip()
       result.add quote do:
@@ -131,7 +131,7 @@ macro cCompile*(path: static string): untyped =
         dcompile(fpath / "*.c")
 
   result.add stmt.parseStmt()
-  
+
   if gDebug:
     echo result.repr
 
@@ -144,14 +144,14 @@ macro cImport*(filename: static string): untyped =
     root = parseLisp(fullpath)
 
   echo "Importing " & fullpath
-  
+
   gCode = staticRead(fullpath)
   gConstStr = ""
   gTypeStr = ""
-  
+
   addHeader(fullpath)
   genNimAst(root)
-  
+
   if gConstStr.nBl:
     if gDebug:
       echo "const\n" & gConstStr
@@ -170,6 +170,6 @@ macro cImport*(filename: static string): untyped =
     if gDebug:
       echo gProcStr
     result.add gProcStr.parseStmt()
-    
+
   if gDebug:
-    echo result.repr
\ No newline at end of file
+    echo result.repr
diff --git a/nimterop/lisp.nim b/nimterop/lisp.nim
index c4a3b54..36c810a 100644
--- a/nimterop/lisp.nim
+++ b/nimterop/lisp.nim
@@ -8,7 +8,7 @@ var
 
 proc tokenize(fullpath: string) =
   var collect = ""
-  
+
   gTokens = @[]
   idx = 0
   for i in staticExec("toast -m " & fullpath):
@@ -53,7 +53,7 @@ proc readFromTokens(): ref Ast =
   elif gTokens[idx] == ")":
     echo "Poor AST"
     quit(1)
-  
+
   idx += 1
 
 proc printAst*(node: ref Ast, offset=""): string =
@@ -68,5 +68,5 @@ proc printAst*(node: ref Ast, offset=""): string =
 
 proc parseLisp*(fullpath: string): ref Ast =
   tokenize(fullpath)
-        
+
   return readFromTokens()
-- 
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