Fix skip bug on _, parent in Symbol

README.md

@@ -49,7 +49,7 @@ Refer to the ```tests``` directory for examples on how the library can be used.
 
 The `toast` binary can also be used directly on the CLI. The `--help` flag provides more details.
 
-Detailed documentation is available for [cimport](https://genotrance.github.io/nimterop/cimport.html) and [git](https://genotrance.github.io/nimterop/git.html).
+Detailed documentation is available: [cimport](https://genotrance.github.io/nimterop/cimport.html), [plugin](https://genotrance.github.io/nimterop/plugin.html), [git](https://genotrance.github.io/nimterop/git.html)
 
 __Implementation Details__
 

nimterop.nimble

@@ -45,4 +45,5 @@ task docs, "Generate docs":
   # Uses: pip install ghp-import
   execCmd "nim doc --project --index:on nimterop/cimport"
   execCmd "nim doc --project --index:on nimterop/git"
+  execCmd "nim doc --project --index:on nimterop/plugin"
   execCmd "ghp-import --no-jekyll -fp nimterop/htmldocs"

nimterop/getters.nim

@@ -91,17 +91,19 @@ template checkUnderscores(name, errmsg: string): untyped =
   if name.len != 0:
     doAssert name[0] != '_' and name[^1] != '_', errmsg
 
-proc getIdentifier*(name: string, kind: NimSymKind): string =
+proc getIdentifier*(name: string, kind: NimSymKind, parent=""): string =
   doAssert name.len != 0, "Blank identifier error"
 
-  if name notin gStateRT.symOverride:
+  if name notin gStateRT.symOverride or parent.nBl:
     if gStateRT.onSymbol != nil:
       var
-        sym = Symbol(name: name, kind: kind)
+        sym = Symbol(name: name, parent: parent, kind: kind)
       gStateRT.onSymbol(sym)
 
       result = sym.name
       checkUnderscores(result, &"Identifier '{name}' still contains leading/trailing underscores '_'  after 'cPlugin:onSymbol()': result '{result}'")
+
+      doAssert result.nBl, &"Blank {kind} '{result}', originally '{name}', child of '{parent}' so cannot be empty"
     else:
       result = name
       checkUnderscores(result, &"Identifier '{result}' contains unsupported leading/trailing underscores '_': use 'cPlugin:onSymbol()' to remove")

nimterop/grammar.nim

@@ -70,8 +70,7 @@ proc initGrammar(): Grammar =
     """
 
   template funcParamCommon(fname, pname, ptyp, pptr, pout, count, i: untyped): untyped =
-    ptyp = nimState.data[i].val.getIdentifier(nskType)
+    ptyp = nimState.data[i].val.getIdentifier(nskType, fname)
-    doAssert ptyp.nBl, &"Blank param type for '{fname}', originally '{nimState.data[i].val}'"
 
     if i+1 < nimState.data.len and nimState.data[i+1].name == "pointer_declarator":
       pptr = "ptr "
@@ -80,8 +79,7 @@ proc initGrammar(): Grammar =
       pptr = ""
 
     if i+1 < nimState.data.len and nimState.data[i+1].name == "identifier":
-      pname = nimState.data[i+1].val.getIdentifier(nskParam)
+      pname = nimState.data[i+1].val.getIdentifier(nskParam, fname)
-      doAssert pname.nBl, &"Blank param name for '{fname}', originally '{nimState.data[i+1].val}'"
       i += 2
     else:
       pname = "a" & $count
@@ -155,8 +153,7 @@ proc initGrammar(): Grammar =
             var
               flen = nimState.data[i].val
             if nimState.data[i].name == "identifier":
-              flen = flen.getIdentifier(nskConst)
+              flen = flen.getIdentifier(nskConst, name)
-              doAssert flen.len != 0, &"Blank array length for '{name}', originally '{nimState.data[i].val}'"
 
             nimState.typeStr &= &"  {name}* = {aptr}array[{flen}, {getPtrType(tptr&typ)}]\n"
           else:
@@ -243,8 +240,7 @@ proc initGrammar(): Grammar =
             aptr = "ptr "
             i += 1
 
-        fname = nimState.data[i].val.getIdentifier(nskField)
+        fname = nimState.data[i].val.getIdentifier(nskField, nname)
-        doAssert fname.len != 0, &"Blank field name for '{nname}', originally '{nimState.data[i].val}'"
 
         if i+1 < nimState.data.len-fend and nimState.data[i+1].name in gEnumVals:
           let
@@ -461,7 +457,6 @@ proc initGrammar(): Grammar =
   """,
     proc (ast: ref Ast, node: TSNode, nimState: NimState) =
       var
-        ftyp = nimState.data[0].val.getIdentifier(nskType)
         fptr = ""
         i = 1
 
@@ -492,7 +487,9 @@ proc initGrammar(): Grammar =
         if pout.len != 0 and pout[^1] == ',':
           pout = pout[0 .. ^2]
 
-        if ftyp.nBl and fnname.nBl and nimState.identifiers.addNewIdentifer(fnname):
+        if fnname.nBl and nimState.identifiers.addNewIdentifer(fnname):
+          let ftyp = nimState.data[0].val.getIdentifier(nskType, fnname)
+
           if fptr == "ptr " or ftyp != "object":
             nimState.procStr &= &"proc {fnname}*({pout}): {getPtrType(fptr&ftyp)} {{.importc: \"{fname}\", header: {nimState.currentHeader}.}}\n"
           else:

nimterop/plugin.nim

@@ -3,6 +3,7 @@ import macros
 type
   Symbol* = object
     name*: string
+    parent*: string
     kind*: NimSymKind
 
   OnSymbol* = proc(sym: var Symbol) {.cdecl.}

tests/include/test.h

@@ -129,6 +129,8 @@ ENUM6 test_call_etype_ptr6();
 union union3 test_call_utype3();
 UNION3 test_call_etype_ptr3();
 
+typedef struct _Kernel { char name; } *Kernel;
+
 #ifdef __cplusplus
 }
 #endif

tests/tnimterop_c.nim

@@ -13,7 +13,10 @@ cPlugin:
   import strutils
 
   proc onSymbol*(sym: var Symbol) {.exportc, dynlib.} =
-    sym.name = sym.name.strip(chars={'_'})
+    if sym.name == "_Kernel":
+      sym.name = "uKernel"
+    else:
+      sym.name = sym.name.strip(chars={'_'})
 
 cImport cSearchPath "test.h"
 
@@ -130,6 +133,8 @@ var
   e6p: ENUM6
   u3: union3
   u3p: UNION3
+  k: uKernel
+  kp: Kernel
 
 cAddStdDir()