Bitfield support, space after comments

nimterop/ast.nim

@@ -7,24 +7,28 @@ import "."/[getters, globals, grammar, treesitter/api]
 proc saveNodeData(node: TSNode, nimState: NimState): bool =
   let name = $node.tsNodeType()
   if name in gAtoms:
-    var
-      val = nimState.getNodeVal(node)
-
-    if name == "primitive_type" and node.tsNodeParent.tsNodeType() == "sized_type_specifier":
-      return true
-
-    if name in ["number_literal", "identifier"] and $node.tsNodeParent.tsNodeType() in gExpressions:
-      return true
-
-    if name in ["primitive_type", "sized_type_specifier"]:
-      val = val.getType()
-
     let
       pname = node.getPxName(1)
       ppname = node.getPxName(2)
       pppname = node.getPxName(3)
       ppppname = node.getPxName(4)
 
+    var
+      val = nimState.getNodeVal(node)
+
+    if name == "primitive_type" and pname == "sized_type_specifier":
+      return true
+
+    if name in ["number_literal", "identifier"] and pname in gExpressions:
+      return true
+
+    if name in ["number_literal"] and pname == "bitfield_clause":
+      nimState.data.add(("bitfield_clause", val))
+      return true
+
+    if name in ["primitive_type", "sized_type_specifier"]:
+      val = val.getType()
+
     if node.tsNodePrevNamedSibling().tsNodeIsNull():
       if pname == "pointer_declarator":
         if ppname notin ["function_declarator", "array_declarator"]:
@@ -43,7 +47,7 @@ proc saveNodeData(node: TSNode, nimState: NimState): bool =
 
     nimState.data.add((name, val))
 
-    if node.tsNodeType() == "field_identifier" and
+    if name == "field_identifier" and
       pname == "pointer_declarator" and
       ppname == "function_declarator":
       if pppname == "pointer_declarator":

nimterop/grammar.nim

@@ -290,6 +290,11 @@ proc initGrammar(): Grammar =
             flen = nimState.data[i+1].val.getNimExpression()
           nimState.typeStr &= &"{nimState.getComments()}\n    {fname}*: {aptr}array[{flen}, {getPtrType(fptr&ftyp)}]"
           i += 2
+        elif i+1 < nimState.data.len-fend and nimState.data[i+1].name == "bitfield_clause":
+          let
+            size = nimState.data[i+1].val
+          nimState.typeStr &= &"{nimState.getComments()}\n    {fname}* {{.bitsize: {size}.}} : {getPtrType(fptr&ftyp)} "
+          i += 2
         elif i+1 < nimState.data.len-fend and nimState.data[i+1].name == "function_declarator":
           var
             pout, pname, ptyp, pptr = ""
@@ -327,6 +332,9 @@ proc initGrammar(): Grammar =
   let
     fieldGrammar = &"""
       (field_identifier!)
+      (bitfield_clause!
+       (number_literal)
+      )
       (array_declarator!
        (field_identifier!)
        (pointer_declarator

tests/include/test.h

@@ -88,6 +88,7 @@ typedef struct {
 	enum ENUM field3[TEST_INT];
 	int *field4[TEST_INT];
 	ENUM4 *field5[TEST_INT+TEST_INT];
+	int field6 : 1;
 } STRUCT4;
 
 typedef struct struct5 {

tests/tnimterop_c.nim

@@ -78,6 +78,10 @@ when defined(cpp):
 else:
   s4.field3[3] = enum1
 
+s4.field6 = 1
+s4.field6 += 1
+check s4.field6 == 0
+
 s5.tci = test_call_int
 s5.tcp = test_call_param
 s5.tcp8 = test_call_param8