Got the meta layer generating files, and incorporated it into the system. Replaced old node meta stuff with the new.

meta/foldhaus_meta.cpp

@@ -27,6 +27,74 @@
 #include "gs_meta_error.h"
 #include "gs_meta_lexer.h"
 
+struct error_buffer
+{
+    char* Backbuffer;
+    string* Contents;
+};
+
+#define ERROR_MAX_LENGTH 256
+#define ERROR_BUFFER_SIZE 256
+struct errors
+{
+    error_buffer* Buffers;
+    u32 BuffersCount;
+    u32 Used;
+};
+
+internal void 
+PushFError (errors* Errors, char* Format, ...)
+{
+    if (Errors->Used >= (Errors->BuffersCount * ERROR_BUFFER_SIZE))
+    {
+        Errors->BuffersCount += 1;
+        Errors->Buffers = (error_buffer*)realloc(Errors->Buffers, sizeof(error_buffer*) * Errors->BuffersCount);
+        
+        error_buffer* NewBuffer = Errors->Buffers + (Errors->BuffersCount - 1);
+        NewBuffer->Backbuffer = (char*)malloc(sizeof(char) * ERROR_MAX_LENGTH * ERROR_BUFFER_SIZE);
+        NewBuffer->Contents = (string*)malloc(sizeof(string) * ERROR_BUFFER_SIZE);
+        
+        for (u32 i = 0; i < ERROR_BUFFER_SIZE; i++)
+        {
+            NewBuffer->Contents[i].Memory = NewBuffer->Backbuffer + (i * ERROR_MAX_LENGTH);
+            NewBuffer->Contents[i].Max = ERROR_MAX_LENGTH;
+            NewBuffer->Contents[i].Length = 0;
+        }
+    }
+    
+    u32 NewErrorIndex = Errors->Used++;
+    u32 BufferIndex = NewErrorIndex / ERROR_BUFFER_SIZE;
+    u32 IndexInBuffer = NewErrorIndex % ERROR_BUFFER_SIZE;
+    string* NewError = Errors->Buffers[BufferIndex].Contents + IndexInBuffer;
+    
+    va_list Args;
+    va_start(Args, Format);
+    NewError->Length = PrintFArgsList(NewError->Memory, NewError->Max, Format, Args);
+    va_end(Args);
+}
+
+internal string*
+TakeError (errors* Errors)
+{
+    u32 NewErrorIndex = Errors->Used++;
+    u32 BufferIndex = NewErrorIndex / ERROR_BUFFER_SIZE;
+    u32 IndexInBuffer = NewErrorIndex % ERROR_BUFFER_SIZE;
+    string* NewError = Errors->Buffers[BufferIndex].Contents + IndexInBuffer;
+    return NewError;
+}
+
+internal void
+PrintAllErrors (errors Errors)
+{
+    for (u32 i = 0; i < Errors.Used; i++)
+    {
+        u32 BufferIndex = i / ERROR_BUFFER_SIZE;
+        u32 IndexInBuffer = i % ERROR_BUFFER_SIZE;
+        string Error = Errors.Buffers[BufferIndex].Contents[IndexInBuffer];
+        printf("%.*s\n", StringExpand(Error));
+    }
+}
+
 #include "foldhaus_meta_type_table.h"
 error_list GlobalErrorList = {};
 
@@ -57,6 +125,8 @@ struct token_iter
 #define TOKEN_ITER_SNAPSHOTS_MAX 64
     u32 SnapshotsUsed;
     u32 Snapshots[TOKEN_ITER_SNAPSHOTS_MAX];
+    
+    errors* Errors;
 };
 
 internal token*
@@ -308,7 +378,7 @@ GetSecondsElapsed(s64 StartCycles, s64 EndCycles)
 }
 
 internal void
-AddFileToSource(string RelativePath, gs_bucket<source_code_file>* SourceFiles)
+AddFileToSource(string RelativePath, gs_bucket<source_code_file>* SourceFiles, errors* Errors)
 {
     source_code_file File = {0};
     
@@ -328,7 +398,7 @@ AddFileToSource(string RelativePath, gs_bucket<source_code_file>* SourceFiles)
     }
     else
     {
-        printf("Error: Could not load file %.*s\n", StringExpand(RelativePath));
+        PushFError(Errors, "Error: Could not load file %S\n", RelativePath);
     }
 }
 
@@ -448,7 +518,6 @@ LongInt (token_iter* Iter, s32* TypeIndexOut, type_table TypeTable)
     if (TokenAtEquals(Iter, "unsigned") ||
         TokenAtEquals(Iter, "signed"))
     {
-        Result = true;
     }
     
     if (TokenAtEquals(Iter, "long"))
@@ -599,11 +668,7 @@ ParseType(token_iter* Iter, type_table* TypeTable, s32* TypeIndexOut)
         NextToken(Iter);
         Result = true;
     }
-    else if (ShortInt(Iter, TypeIndexOut, *TypeTable))
+    else if (LongLongInt(Iter, TypeIndexOut, *TypeTable))
-    {
-        Result = true;
-    }
-    else if (Int(Iter, TypeIndexOut, *TypeTable))
     {
         Result = true;
     }
@@ -611,7 +676,11 @@ ParseType(token_iter* Iter, type_table* TypeTable, s32* TypeIndexOut)
     {
         Result = true;
     }
-    else if (LongLongInt(Iter, TypeIndexOut, *TypeTable))
+    else if (ShortInt(Iter, TypeIndexOut, *TypeTable))
+    {
+        Result = true;
+    }
+    else if (Int(Iter, TypeIndexOut, *TypeTable))
     {
         Result = true;
     }
@@ -883,6 +952,7 @@ ParseFunctionDeclaration (token_iter* Iter, token* Identifier, gs_bucket<token*>
             CopyMetaTagsAndClear(TagList, &FunctionPtr.MetaTags);
             FunctionPtr.Type = TypeDef_FunctionPointer;
             FunctionPtr.Pointer = true;
+            FunctionPtr.FunctionPtr = {};
             FunctionPtr.FunctionPtr.ReturnTypeIndex = ReturnTypeIndex;
             
             *Identifier = *Iter->TokenAt;
@@ -959,13 +1029,14 @@ ParseTypedef(token_iter* Iter, gs_bucket<token*>* TagList, type_table* TypeTable
         }
         else
         {
-            printf("unhandled typedef ");
+            string* Error = TakeError(Iter->Errors);
+            PrintF(Error, "unhandled typedef ");
             while (!TokenAtEquals(Iter, ";"))
             {
-                printf("%.*s ", StringExpand(Iter->TokenAt->Text));
+                PrintF(Error, "%S ", Iter->TokenAt->Text);
                 NextToken(Iter);
             }
-            printf("\n");
+            PrintF(Error, "\n");
         }
     }
     
@@ -974,6 +1045,91 @@ ParseTypedef(token_iter* Iter, gs_bucket<token*>* TagList, type_table* TypeTable
     return Result;
 }
 
+internal b32
+ParseEnum (token_iter* Iter, gs_bucket<token*>* TagList, type_table* TypeTable)
+{
+    b32 Result = false;
+    PushSnapshot(Iter);
+    
+    if (TokenAtEquals(Iter, "enum"))
+    {
+        if (Iter->TokenAt->Type == Token_Identifier)
+        {
+            type_definition EnumDecl = {};
+            EnumDecl.Identifier = Iter->TokenAt->Text;
+            EnumDecl.Size = sizeof(u32);
+            CopyMetaTagsAndClear(TagList, &EnumDecl.MetaTags);
+            EnumDecl.Type = TypeDef_Enum;
+            
+            NextToken(Iter);
+            
+            if (TokenAtEquals(Iter, "{"))
+            {
+                u32 EnumeratorAcc = 0;
+                
+                while (!StringsEqual(Iter->TokenAt->Text, MakeStringLiteral("}")))
+                {
+                    if (Iter->TokenAt->Type == Token_Identifier)
+                    {
+                        string EnumeratorIdentifier = Iter->TokenAt->Text;
+                        NextToken(Iter);
+                        
+                        if (TokenAtEquals(Iter, "="))
+                        {
+                            // TODO(Peter): TempValue is just here until we handle all
+                            // const expr that could define an enum value. Its there so 
+                            // that if the first token of an expression is a number, 
+                            // we can avoid using anything from the expression.
+                            u32 TempValue = EnumeratorAcc;
+                            if (Iter->TokenAt->Type == Token_Number)
+                            {
+                                parse_result ParsedExpr = ParseSignedInt(StringExpand(Iter->TokenAt->Text));
+                                TempValue = ParsedExpr.SignedIntValue;
+                                NextToken(Iter);
+                            }
+                            
+                            // TODO(Peter): Handle setting enums equal to other kinds
+                            // of const exprs.
+                            // We're skipping a whole bunch of stuff now
+                            while (!(StringsEqual(Iter->TokenAt->Text, MakeStringLiteral(",")) ||
+                                     StringsEqual(Iter->TokenAt->Text, MakeStringLiteral("}"))))
+                            {
+                                TempValue = EnumeratorAcc;
+                                NextToken(Iter);
+                            }
+                            
+                            EnumeratorAcc = TempValue;
+                        }
+                        
+                        s32 EnumeratorValue = EnumeratorAcc++;
+                        if (TokenAtEquals(Iter, ",") ||
+                            StringsEqual(Iter->TokenAt->Text, MakeStringLiteral("}")))
+                        {
+                            EnumDecl.Enum.Identifiers.PushElementOnBucket(EnumeratorIdentifier);
+                            EnumDecl.Enum.Values.PushElementOnBucket(EnumeratorValue);
+                        }
+                        else if (!StringsEqual(Iter->TokenAt->Text, MakeStringLiteral("}")))
+                        {
+                            Result = false;
+                            break;
+                        }
+                    }
+                }
+                
+                if (TokenAtEquals(Iter, "}") &&
+                    TokenAtEquals(Iter, ";"))
+                {
+                    PushTypeDefOnTypeTable(EnumDecl, TypeTable);
+                    Result = true;
+                }
+            }
+        }
+    }
+    
+    ApplySnapshotIfNotParsedAndPop(Result, Iter);
+    return Result;
+}
+
 internal void
 PrintIndent (u32 Indent)
 {
@@ -1072,6 +1228,159 @@ PrintFunctionPtrDecl (type_definition* FnPtrDecl, type_table TypeTable)
     printf(");");
 }
 
+struct typeinfo_generator
+{
+    string_builder TypeList;
+    string_builder StructMembers;
+    string_builder TypeDefinitions;
+    
+    u32 GeneratedInfoTypesCount;
+    u32 TypesMax;
+    b8* TypesGeneratedMask;
+};
+
+internal typeinfo_generator
+InitTypeInfoGenerator(type_table TypeTable)
+{
+    typeinfo_generator Result = {};
+    
+    Result.TypesMax = TypeTable.Types.Used;
+    Result.TypesGeneratedMask = (b8*)malloc(sizeof(b8) * Result.TypesMax);
+    GSZeroMemory((u8*)Result.TypesGeneratedMask, Result.TypesMax);
+    
+    WriteF(&Result.TypeList, "enum gsm_struct_type\n{\n");
+    
+    WriteF(&Result.TypeDefinitions, "static gsm_struct_type_info StructTypes[] = {\n");
+    return Result;
+}
+
+internal void
+FinishGeneratingTypes(typeinfo_generator* Generator)
+{
+    WriteF(&Generator->TypeList, "gsm_StructTypeCount,\n};\n\n");
+    
+    WriteF(&Generator->StructMembers, "\n");
+    
+    WriteF(&Generator->TypeDefinitions, "};\n");
+    WriteF(&Generator->TypeDefinitions, "gsm_u32 StructTypesCount = %d;\n", Generator->GeneratedInfoTypesCount);
+}
+
+internal void
+GenerateMetaTagInfo (gs_bucket<meta_tag> Tags, string_builder* Builder)
+{
+    WriteF(Builder, "{");
+    for (u32 t = 0; t < Tags.Used; t++)
+    {
+        meta_tag* Tag = Tags.GetElementAtIndex(t);
+        WriteF(Builder, "{ \"%S\", %d }", Tag->Identifier, Tag->Identifier.Length);
+        if ((t + 1) < Tags.Used)
+        {
+            WriteF(Builder, ", ");
+        }
+    }
+    WriteF(Builder, "}, %d", Tags.Used);
+}
+
+internal void
+GenerateStructMemberInfo (variable_decl* Member, string StructIdentifier, type_table TypeTable, typeinfo_generator* Gen)
+{
+    WriteF(&Gen->StructMembers, "{ \"%S\", %d, ", Member->Identifier, Member->Identifier.Length);
+    WriteF(&Gen->StructMembers, "(u64)&((%S*)0)->%S ", StructIdentifier, Member->Identifier); 
+    WriteF(&Gen->StructMembers, "},\n");
+}
+
+internal void
+GenerateTypeInfo (type_definition* Type, u32 TypeIndex, type_table TypeTable, typeinfo_generator* Generator)
+{
+    Generator->TypesGeneratedMask[TypeIndex] = true;
+    Generator->GeneratedInfoTypesCount++;
+    
+    {
+        // NOTE(Peter): This block MUST come before generating
+        // type info for any member types. If it doesn't, it will screw
+        // up array ordering
+        
+        // Lookup Enum
+        WriteF(&Generator->TypeList, "gsm_StructType_%S,\n", Type->Identifier);
+        
+        // Type Info
+        WriteF(&Generator->TypeDefinitions, "{ gsm_StructType_%S, \"%S\", %d, %d, 0, 0, ",
+               Type->Identifier,
+               Type->Identifier, Type->Identifier.Length,
+               Type->Size
+               // TODO(Peter): include Meta Tags somehow
+               );
+        if ((Type->Type == TypeDef_Struct || Type->Type == TypeDef_Union) &&
+            Type->Struct.MemberDecls.Used > 0)
+        {
+            WriteF(&Generator->TypeDefinitions, "StructMembers_%S, %d },\n",
+                   Type->Identifier,
+                   Type->Struct.MemberDecls.Used);
+        }
+        else
+        {
+            WriteF(&Generator->TypeDefinitions, "0, 0 },\n");
+        }
+    }
+    
+    if (Type->Type == TypeDef_Struct || 
+        Type->Type == TypeDef_Union)
+    {
+        for (u32 m = 0; m < Type->Struct.MemberDecls.Used; m++)
+        {
+            variable_decl* Member = Type->Struct.MemberDecls.GetElementAtIndex(m);
+            type_definition* MemberType = TypeTable.Types.GetElementAtIndex(Member->TypeIndex);
+            
+            if (MemberType->Identifier.Length == 0) { continue; } // Don't gen info for anonymous struct and union members
+            if (Generator->TypesGeneratedMask[Member->TypeIndex]) { continue; }
+            
+            GenerateTypeInfo(MemberType, Member->TypeIndex, TypeTable, Generator);
+        }
+        
+        //
+        WriteF(&Generator->StructMembers, "static gsm_struct_member_type_info StructMembers_%S[] = {\n", Type->Identifier);
+        for (u32 m = 0; m < Type->Struct.MemberDecls.Used; m++)
+        {
+            variable_decl* Member = Type->Struct.MemberDecls.GetElementAtIndex(m);
+            type_definition* MemberType = TypeTable.Types.GetElementAtIndex(Member->TypeIndex);
+            
+            if (MemberType->Identifier.Length > 0)
+            {
+                GenerateStructMemberInfo(Member, Type->Identifier, TypeTable, Generator);
+            }
+            else if (MemberType->Type == TypeDef_Struct ||
+                     MemberType->Type == TypeDef_Union)
+            {
+                // Anonymous Members
+                for (u32 a = 0; a < MemberType->Struct.MemberDecls.Used; a++)
+                {
+                    variable_decl* AnonMember = MemberType->Struct.MemberDecls.GetElementAtIndex(a);
+                    GenerateStructMemberInfo(AnonMember, Type->Identifier, TypeTable, Generator);
+                }
+            }
+        }
+        WriteF(&Generator->StructMembers, "};\n", Type->Struct.MemberDecls.Used);
+    }
+}
+
+internal void
+GenerateFilteredTypeInfo (string MetaTagFilter, type_table TypeTable, typeinfo_generator* Generator)
+{
+    for (u32 i = 0; i < TypeTable.Types.Used; i++)
+    {
+        if (Generator->TypesGeneratedMask[i])
+        {
+            continue;
+        }
+        
+        type_definition* Type = TypeTable.Types.GetElementAtIndex(i);
+        if (HasTag(MetaTagFilter, Type->MetaTags))
+        {
+            GenerateTypeInfo(Type, i, TypeTable, Generator);
+        }
+    }
+}
+
 // Step 1: Get All Tokens, for every file
 // Step 2: Identify all preprocessor directives
 // Step 3: Apply Preprocessor Directives && Generate Code
@@ -1087,29 +1396,31 @@ int main(int ArgCount, char** ArgV)
         return 0;
     }
     
+    errors Errors = {0};
+    
     memory_arena SourceFileArena = {};
     gs_bucket<source_code_file> SourceFiles;
     gs_bucket<token> Tokens;
     
     string_builder NodeTypeBlock = {};
-    Write(MakeStringLiteral("enum node_type\n{\n"), &NodeTypeBlock);
+    WriteF(&NodeTypeBlock, "enum node_type\n{\n");
     
     string_builder NodeMembersBlock = {};
     
     string_builder NodeSpecificationsBlock = {};
-    Write(MakeStringLiteral("node_specification NodeSpecifications[] = {\n"), &NodeSpecificationsBlock);
+    WriteF(&NodeSpecificationsBlock, "node_specification NodeSpecifications[] = {\n");
     
     string_builder CallNodeProcBlock = {};
-    Write(MakeStringLiteral("internal void CallNodeProc(u32 SpecificationIndex, u8* Data, led* LEDs, s32 LEDsCount, r32 DeltaTime)\n{\n"), &CallNodeProcBlock);
+    WriteF(&CallNodeProcBlock, "internal void CallNodeProc(u32 SpecificationIndex, u8* Data, led* LEDs, s32 LEDsCount, r32 DeltaTime)\n{\n");
-    Write(MakeStringLiteral("node_specification Spec = NodeSpecifications[SpecificationIndex];\n"), &CallNodeProcBlock);
+    WriteF(&CallNodeProcBlock, "node_specification Spec = NodeSpecifications[SpecificationIndex];\n");
-    Write(MakeStringLiteral("switch (Spec.Type)\n{\n"), &CallNodeProcBlock);
+    WriteF(&CallNodeProcBlock, "switch (Spec.Type)\n{\n");
     
     string CurrentWorkingDirectory = MakeString((char*)malloc(1024), 0, 1024);
     
     if (ArgCount > 1)
     {
         string RootFile = MakeString(ArgV[1]);
-        AddFileToSource(RootFile, &SourceFiles);
+        AddFileToSource(RootFile, &SourceFiles, &Errors);
         
         s32 LastSlash = ReverseSearchForCharInSet(RootFile, "\\/");
         Assert(LastSlash > 0);
@@ -1137,6 +1448,7 @@ int main(int ArgCount, char** ArgV)
         Iter.LastToken = File->LastTokenIndex;
         Iter.TokenAtIndex = Iter.FirstToken;
         Iter.TokenAt = Tokens.GetElementAtIndex(Iter.TokenAtIndex);
+        Iter.Errors = &Errors;
         
         while (Iter.TokenAtIndex < Iter.LastToken)
         {
@@ -1170,7 +1482,7 @@ int main(int ArgCount, char** ArgV)
                     ParseSuccess = true;
                     if (!FileAlreadyInSource(TempFilePath, SourceFiles))
                     {
-                        AddFileToSource(TempFilePath, &SourceFiles);
+                        AddFileToSource(TempFilePath, &SourceFiles, &Errors);
                     }
                 }
             }
@@ -1178,6 +1490,10 @@ int main(int ArgCount, char** ArgV)
             {
                 ParseSuccess = true;
             }
+            else if (ParseEnum(&Iter, &TagList, &TypeTable))
+            {
+                ParseSuccess = true;
+            }
             else if (ParseStruct(&Iter, &TypeIndex, &TagList, &TypeTable))
             {
                 ParseSuccess = true;
@@ -1200,48 +1516,29 @@ int main(int ArgCount, char** ArgV)
         type_definition* TypeDef = TypeTable.Types.GetElementAtIndex(i);
         if (TypeDef->Type == TypeDef_Struct)
         {
-            FixUpStructSize(i, TypeTable);
+            FixUpStructSize(i, TypeTable, &Errors);
         }
         else if (TypeDef->Type == TypeDef_Union)
         {
-            FixUpUnionSize(i, TypeTable);
+            FixUpUnionSize(i, TypeTable, &Errors);
         }
     }
     
-    // Print All Structs
-    for (u32 i = 0; i < TypeTable.Types.Used; i++)
-    {
-        type_definition* TypeDef = TypeTable.Types.GetElementAtIndex(i);
-#if 0
-        if ((TypeDef->Type == TypeDef_Struct || TypeDef->Type == TypeDef_Union) && TypeDef->Identifier.Length > 0)
-        {
-            PrintStructDecl(TypeDef, TypeTable);
-            printf("\n\n");
-        }
-#endif
-        
-        if (TypeDef->Type == TypeDef_FunctionPointer)
-        {
-            PrintFunctionPtrDecl(TypeDef, TypeTable);
-            printf("\n\n");
-        }
-    }
-    
-    
     s64 Cycles_Preprocess = GetWallClock();
     
+    PrintAllErrors(Errors);
+    
     MakeStringBuffer(Buffer, 256);
     
     // Close Types Block - overwrite the last comma and '\' newline character with newlines.
-    Write(MakeStringLiteral("NodeType_Count,\n};\n\n"), &NodeTypeBlock);
+    WriteF(&NodeTypeBlock, "NodeType_Count,\n};\n\n");
     
     // Close Specifications Block
-    Write(MakeStringLiteral("};\n"), &NodeSpecificationsBlock);
+    WriteF(&NodeSpecificationsBlock, "};\n");
-    PrintF(&Buffer, "s32 NodeSpecificationsCount = %d;\n\n", NodeProcCount);
+    WriteF(&NodeSpecificationsBlock, "s32 NodeSpecificationsCount = %d;\n\n", NodeProcCount);
-    Write(Buffer, &NodeSpecificationsBlock);
     
     // Close Call Node Proc Block
-    Write(MakeStringLiteral("}\n}\n"), &CallNodeProcBlock);
+    WriteF(&CallNodeProcBlock, "}\n}\n");
     
     FILE* NodeGeneratedCPP = fopen("C:\\projects\\foldhaus\\src\\generated\\foldhaus_nodes_generated.cpp", "w");
     if (NodeGeneratedCPP)
@@ -1253,47 +1550,24 @@ int main(int ArgCount, char** ArgV)
         fclose(NodeGeneratedCPP);
     }
     
+    typeinfo_generator TypeGenerator = InitTypeInfoGenerator(TypeTable);
+    GenerateFilteredTypeInfo(MakeStringLiteral("node_struct"), TypeTable, &TypeGenerator);
+    FinishGeneratingTypes(&TypeGenerator);
+    FILE* TypeInfoH = fopen("C:\\projects\\foldhaus\\src\\generated\\gs_meta_generated_typeinfo.h", "w");
+    if (TypeInfoH)
+    {
+        WriteStringBuilderToFile(TypeGenerator.TypeList, TypeInfoH);
+        WriteStringBuilderToFile(TypeGenerator.StructMembers, TypeInfoH);
+        WriteStringBuilderToFile(TypeGenerator.TypeDefinitions, TypeInfoH);
+        fclose(NodeGeneratedCPP);
+    }
+    
     PrintErrorList(GlobalErrorList);
     
     s64 TotalEnd = GetWallClock();
-    
     r32 TotalTime = GetSecondsElapsed(TotalStart, TotalEnd);
-    
     printf("Metaprogram Preproc Time: %.*f sec\n", 6, TotalTime);
     
-#if 0
+    //__debugbreak();
-    for (u32 i = 0; i < Structs.Used; i++)
-    {
-        seen_node_struct* Struct = Structs.GetElementAtIndex(i);
-        
-#ifdef PRINT_ALL_INFO
-        printf("\n");
-        for (u32 j = 0; j < Struct->MetaTags.Used; j++)
-        {
-            token* MetaTag = Struct->MetaTags.GetElementAtIndex(j);
-            printf("GSMetaTag(%.*s)\n", StringExpand(MetaTag->Text));
-        }
-#endif
-        
-        printf("struct %.*s\n", StringExpand(Struct->Name));
-        
-#ifdef PRINT_ALL_INFO
-        for (u32 j = 0; j < Struct->MemberDecls.Used; j++)
-        {
-            struct_member_decl* Member = Struct->MemberDecls.GetElementAtIndex(j);
-            
-            for (u32 k = 0; k < Member->MetaTags.Used; k++)
-            {
-                token* MetaTag = Member->MetaTags.GetElementAtIndex(k);
-                printf("    GSMetaTag(%.*s)\n", StringExpand(MetaTag->Text));
-            }
-            
-            printf("    %.*s %.*s\n", StringExpand(Member->Type), StringExpand(Member->Identifier));
-        }
-#endif
-    }
-#endif
-    
-    __debugbreak();
     return 0;
 }

meta/foldhaus_meta_include.h

@@ -0,0 +1,50 @@
+//
+// File: foldhaus_meta_include.h
+// Author: Peter Slattery
+// Creation Date: 2020-01-19
+//
+#ifndef FOLDHAUS_META_INCLUDE_H
+
+//
+// NOTE
+// Include this file FIRST in any application utilizing the Foldhaus Meta system
+// Include the generated files you wish to take advantage of at convenient locations
+// in your application
+//
+
+typedef unsigned int gsm_u32;
+typedef unsigned long long int gsm_u64;
+
+#define GSMetaTag(ident, ...) 
+
+struct gsm_meta_tag
+{
+    char* Tag;
+    gsm_u32 TagLength;
+};
+
+struct gsm_struct_member_type_info
+{
+    char* Identifier;
+    gsm_u32 IdentifierLength;
+    gsm_u64 Offset;
+};
+
+struct gsm_struct_type_info
+{
+    gsm_u32 Type;
+    char* Identifier;
+    gsm_u32 IdentifierLength;
+    
+    gsm_u32 Size;
+    
+    gsm_meta_tag* Tags;
+    gsm_u32 TagsCount;
+    
+    gsm_struct_member_type_info* Members;
+    gsm_u32 MembersCount;
+};
+
+
+#define FOLDHAUS_META_INCLUDE_H
+#endif // FOLDHAUS_META_INCLUDE_H

meta/foldhaus_meta_type_table.h

@@ -11,6 +11,7 @@ enum type_definition_type
     
     // NOTE(Peter): tokens with this type require fixup later
     TypeDef_Unknown, 
+    TypeDef_Enum,
     TypeDef_Struct,
     TypeDef_Union,
     TypeDef_BasicType,
@@ -57,6 +58,15 @@ struct function_pointer_decl
     gs_bucket<variable_decl> Parameters;
 };
 
+struct enum_decl
+{
+    gs_bucket<string> Identifiers;
+    
+    // TODO(Peter): I suppose there are ways to make an enum a 64 bit number
+    // for values. Probably need to handle that at some point
+    gs_bucket<u32> Values;
+};
+
 struct type_definition
 {
     string Identifier;
@@ -67,6 +77,7 @@ struct type_definition
     type_definition_type Type;
     union
     {
+        enum_decl Enum;
         struct_decl Struct;
         function_pointer_decl FunctionPtr;
     };
@@ -78,17 +89,19 @@ struct type_table
     gs_bucket<type_definition> Types;
 };
 
-internal void
+internal b32
-MetaTagBreakpoint(gs_bucket<meta_tag> Tags)
+HasTag(string Needle, gs_bucket<meta_tag> Tags)
 {
+    b32 Result = false;
     for (u32 i = 0; i < Tags.Used; i++)
     {
         meta_tag* Tag = Tags.GetElementAtIndex(i);
-        if (StringsEqual(Tag->Identifier, MakeStringLiteral("breakpoint")))
+        if (StringsEqual(Tag->Identifier, Needle))
         {
-            __debugbreak();
+            Result = true;
         }
     }
+    return Result;
 }
 
 internal void
@@ -136,7 +149,11 @@ PushTypeDefOnTypeTable(type_definition TypeDef, type_table* TypeTable)
     s32 Index = -1;
     
     s32 ExistingUndeclaredTypeIndex = GetIndexOfType(TypeDef.Identifier, *TypeTable);
-    if (ExistingUndeclaredTypeIndex < 0)
+    
+    // NOTE(Peter): If the identifier length is zero, they will all match with the 
+    // first anonymous struct/union member. So every anon struct/union gets its own
+    // typeef
+    if (ExistingUndeclaredTypeIndex < 0 || TypeDef.Identifier.Length == 0)
     {
         Index = TypeTable->Types.PushElementOnBucket(TypeDef);
     }
@@ -245,8 +262,8 @@ FindIndexOfMatchingType (type_definition Match, type_table TypeTable)
     return Result;
 }
 
-internal void FixUpStructSize (s32 StructIndex, type_table TypeTable);
+internal void FixUpStructSize (s32 StructIndex, type_table TypeTable, errors* Errors);
-internal void FixUpUnionSize (s32 UnionIndex, type_table TypeTable);
+internal void FixUpUnionSize (s32 UnionIndex, type_table TypeTable, errors* Errors);
 
 internal void
 FixupMemberType (variable_decl* Member, type_table TypeTable)
@@ -279,23 +296,8 @@ CalculateStructMemberSize (variable_decl Member, type_definition MemberType)
 }
 
 internal void
-FixUpStructSize (s32 StructIndex, type_table TypeTable)
+FixupStructMember (variable_decl* Member, type_definition* MemberTypeDef, type_table TypeTable, errors* Errors)
 {
-    type_definition* Struct = TypeTable.Types.GetElementAtIndex(StructIndex);
-    Assert(Struct->Type == TypeDef_Struct);
-    
-    MetaTagBreakpoint(Struct->MetaTags);
-    
-    s32 SizeAcc = 0;
-    for (u32 j = 0; j < Struct->Struct.MemberDecls.Used; j++)
-    {
-        variable_decl* Member = Struct->Struct.MemberDecls.GetElementAtIndex(j);
-        FixupMemberType(Member, TypeTable);
-        
-        if (Member->TypeIndex >= 0)
-        {
-            type_definition* MemberTypeDef = TypeTable.Types.GetElementAtIndex(Member->TypeIndex);
-            
     // NOTE(Peter): There are a lot of cases where struct members which are pointers
     // to other structs cause interesting behavior here. 
     // For example:
@@ -320,11 +322,17 @@ FixUpStructSize (s32 StructIndex, type_table TypeTable)
         {
             if (MemberTypeDef->Type == TypeDef_Struct)
             {
-                        FixUpStructSize(Member->TypeIndex, TypeTable);
+                FixUpStructSize(Member->TypeIndex, TypeTable, Errors);
             }
             else if (MemberTypeDef->Type == TypeDef_Union)
             {
-                        FixUpUnionSize(Member->TypeIndex, TypeTable);
+                FixUpUnionSize(Member->TypeIndex, TypeTable, Errors);
+            }
+            else 
+            {
+                if (MemberTypeDef->Type == TypeDef_Unknown)
+                {
+                    PushFError(Errors, "Union Error: TypeDef Unknown: %S\n", MemberTypeDef->Identifier);
                 }
                 else
                 {
@@ -333,11 +341,37 @@ FixUpStructSize (s32 StructIndex, type_table TypeTable)
 #if 0
                     InvalidCodePath;
 #else
-                        printf("Struct Error: TypeDef Size = 0. %.*s\n", StringExpand(MemberTypeDef->Identifier));
+                    PushFError(Errors, "Struct Error: TypeDef Size = 0. %S\n", MemberTypeDef->Identifier);
 #endif
                 }
             }
         }
+    }
+}
+
+internal void
+FixUpStructSize (s32 StructIndex, type_table TypeTable, errors* Errors)
+{
+    type_definition* Struct = TypeTable.Types.GetElementAtIndex(StructIndex);
+    Assert(Struct->Type == TypeDef_Struct);
+    
+    if (HasTag(MakeStringLiteral("breakpoint"), Struct->MetaTags))
+    {
+        __debugbreak();
+    }
+    
+    s32 SizeAcc = 0;
+    for (u32 j = 0; j < Struct->Struct.MemberDecls.Used; j++)
+    {
+        variable_decl* Member = Struct->Struct.MemberDecls.GetElementAtIndex(j);
+        FixupMemberType(Member, TypeTable);
+        
+        // TODO(Peter): 
+        if (Member->TypeIndex >= 0)
+        {
+            type_definition* MemberTypeDef = TypeTable.Types.GetElementAtIndex(Member->TypeIndex);
+            
+            FixupStructMember(Member, MemberTypeDef, TypeTable, Errors);
             
             u32 MemberSize = CalculateStructMemberSize(*Member, *MemberTypeDef);
             SizeAcc += MemberSize;
@@ -346,6 +380,10 @@ FixUpStructSize (s32 StructIndex, type_table TypeTable)
     
     Struct->Size = SizeAcc;
     
+    // NOTE(Peter): It is valid to have an empty struct, which would have a size of
+    // zero, hence the check here.
+    if (Struct->Size == 0 && Struct->Struct.MemberDecls.Used > 0)
+    {
         // NOTE(Peter): Because its recursive (it makes sure all type sizes become known
         // if it needs them) we should never get to the end of this function and not have
         // the ability to tell how big something is. 
@@ -354,15 +392,13 @@ FixUpStructSize (s32 StructIndex, type_table TypeTable)
 #if 0
         Assert(Struct->Size != 0);
 #else
-    if (Struct->Size == 0)
+        PushFError(Errors, "Struct Error: Struct Size = 0. %S\n", Struct->Identifier);
-    {
-        printf("Struct Error: Struct Size = 0. %.*s\n", StringExpand(Struct->Identifier));
-    }
 #endif
     }
+}
 
 internal void
-FixUpUnionSize (s32 UnionIndex, type_table TypeTable)
+FixUpUnionSize (s32 UnionIndex, type_table TypeTable, errors* Errors)
 {
     type_definition* Union = TypeTable.Types.GetElementAtIndex(UnionIndex);
     Assert(Union->Type == TypeDef_Union);
@@ -376,28 +412,7 @@ FixUpUnionSize (s32 UnionIndex, type_table TypeTable)
         if (Member->TypeIndex >= 0)
         {
             type_definition* MemberTypeDef = TypeTable.Types.GetElementAtIndex(Member->TypeIndex);
-            if (MemberTypeDef->Size == 0)
+            FixupStructMember(Member, MemberTypeDef, TypeTable, Errors);
-            {
-                if (MemberTypeDef->Type == TypeDef_Struct)
-                {
-                    FixUpStructSize(Member->TypeIndex, TypeTable);
-                }
-                else if(MemberTypeDef->Type == TypeDef_Union)
-                {
-                    FixUpUnionSize(Member->TypeIndex, TypeTable);
-                }
-                else 
-                { 
-                    // TODO(Peter): We don't parse all types yet, so for now, this is just an alert,
-                    // not an assert;
-#if 0
-                    InvalidCodePath;
-#else
-                    printf("Union Error: TypeDef Size = 0. %.*s\n", StringExpand(MemberTypeDef->Identifier));
-#endif
-                }
-            }
-            
             s32 MemberSize = CalculateStructMemberSize(*Member, *MemberTypeDef);
             BiggestMemberSize = GSMax(BiggestMemberSize, MemberSize);
         }
@@ -405,6 +420,10 @@ FixUpUnionSize (s32 UnionIndex, type_table TypeTable)
     
     Union->Size = BiggestMemberSize;
     
+    // NOTE(Peter): It is valid to have an empty struct, which would have a size of
+    // zero, hence the check here.
+    if (Union->Size == 0 && Union->Struct.MemberDecls.Used > 0)
+    {
         // NOTE(Peter): Because its recursive (it makes sure all type sizes become known
         // if it needs them) we should never get to the end of this function and not have
         // the ability to tell how big something is
@@ -413,12 +432,10 @@ FixUpUnionSize (s32 UnionIndex, type_table TypeTable)
 #if 0
         Assert(Union->Size != 0);
 #else
-    if (Union->Size == 0)
+        PushFError(Errors, "Union Error: Struct Size = 0. %S\n", Union->Identifier);
-    {
-        printf("Union Error: Struct Size = 0. %.*s\n", StringExpand(Union->Identifier));
-    }
 #endif
     }
+}
 
 type_definition CPPBasicTypes[] = {
     { MakeStringLiteral("float"), sizeof(float), {}, TypeDef_BasicType, {}, false },

meta/gs_meta_lexer.h

@@ -104,6 +104,29 @@ GetNextToken (tokenizer* Tokenizer)
     
     EatWhitespace(Tokenizer);
     
+    // Don't include comments in tokens
+    while (Tokenizer->At[0] && Tokenizer->At[0] == '/' && Tokenizer->At[1] &&  Tokenizer->At[1] == '/')
+    {
+        EatToNewLine(Tokenizer);
+        EatWhitespace(Tokenizer);
+    }
+    
+    while(Tokenizer->At[0] && Tokenizer->At[0] == '/' && Tokenizer->At[1] &&  Tokenizer->At[1] == '*')
+    {
+        Tokenizer->At += 2;
+        while (*Tokenizer->At)
+        {
+            if (Tokenizer->At[0] && Tokenizer->At[0] == '*' && Tokenizer->At[1] &&  Tokenizer->At[1] == '/')
+            {
+                Tokenizer->At += 2;
+                break;
+            }
+            EatToNewLine(Tokenizer);
+            EatWhitespace(Tokenizer);
+        }
+        EatWhitespace(Tokenizer);
+    }
+    
     Result.Text = MakeString(Tokenizer->At, 1, 1);
     
     // NOTE(Peter): Adding one because I want the tokenizer to work with clear to zero
@@ -226,23 +249,6 @@ GetNextToken (tokenizer* Tokenizer)
         Result.Text.Memory = Tokenizer->At;
         Result.Text.Length = EatString(Tokenizer);
     }
-    else if (C == '/' && Tokenizer->At[0] &&  Tokenizer->At[0] == '/')
-    {
-        Result.Type = Token_Comment;
-        Result.Text.Length += 1 + EatToNewLine(Tokenizer);
-    }
-    else if (C == '/' && Tokenizer->At[0] && Tokenizer->At[0] == '*')
-    {
-        s32 CommentLength = 1;
-        while (Tokenizer->At[0] && Tokenizer->At[0] != '*' &&
-               Tokenizer->At[1] && Tokenizer->At[1] != '/')
-        {
-            ++Tokenizer->At;
-            CommentLength++;
-        }
-        
-        Result.Text.Length += CommentLength;
-    }
     // NOTE(Peter): This is after comment parsing so that the division operator
     // falls through the comment case
     else if (IsOperator(C)) { Result.Type = Token_Operator; }

src/foldhaus_app.cpp

@@ -5,24 +5,12 @@
 //
 #ifndef FOLDHAUS_APP_CPP
 
-#define GSMetaTag(ident) // this is purely for the sake of the meta layer
+#include "../meta/foldhaus_meta_include.h"
-
 
 #include "foldhaus_platform.h"
 #include "foldhaus_app.h"
 
-GSMetaTag(node_struct);
+#include "./generated/gs_meta_generated_typeinfo.h"
-struct test_data
-{
-    r32* Ptr;
-    
-    GSMetaTag(output_member);
-    u32 Output;
-    
-    GSMetaTag(foo);
-    GSMetaTag(input_member);
-    u32 Input;
-};
 
 internal v4
 MouseToWorldRay(r32 MouseX, r32 MouseY, camera* Camera, rect WindowBounds)

src/foldhaus_app.h

@@ -20,6 +20,11 @@
 
 #include "foldhaus_node.h"
 
+// TODO(Peter): TEMPORARY
+u32 NodeSpecificationsCount = 0;
+node_specification* NodeSpecifications = 0;
+
+
 #include "assembly_parser.cpp"
 //#include "test_patterns.h"
 
@@ -210,8 +215,8 @@ TestPatternThree(assembly* Assembly, r32 Time)
 #include "foldhaus_text_entry.cpp"
 #include "foldhaus_search_lister.cpp"
 
-//#include "foldhaus_default_nodes.h"
+#include "foldhaus_default_nodes.h"
-#include "generated/foldhaus_nodes_generated.cpp"
+
 #include "foldhaus_node.cpp"
 
 FOLDHAUS_INPUT_COMMAND_PROC(EndCurrentOperationMode)

src/foldhaus_default_nodes.h

@@ -72,12 +72,20 @@ NODE_PROC(AddNodeProc, add_data)
 //
 /////////////////////////////////
 
-NODE_STRUCT(sin_wave_data)
+GSMetaTag(node_struct);
+struct sin_wave_data
 {
-    NODE_IN(r32, Period);
+    GSMetaTag(node_input);
-    NODE_IN(r32, Min);
+    r32 Period;
-    NODE_IN(r32, Max);
+    
-    NODE_OUT(r32, Result);
+    GSMetaTag(node_input);
+    r32 Min;
+    
+    GSMetaTag(node_input);
+    r32 Max;
+    
+    GSMetaTag(node_input);
+    r32 Result;
     
     r32 Accumulator;
 };
@@ -109,35 +117,41 @@ NODE_PROC(SinWave, sin_wave_data)
 //
 /////////////////////////////////
 
-NODE_STRUCT(multiply_patterns_data)
+GSMetaTag(node_struct); 
+struct multiply_patterns_data
 {
-    NODE_COLOR_BUFFER_IN(A);
+    GSMetaTag(node_input);
-    NODE_COLOR_BUFFER_IN(B);
+    color_buffer A;
-    NODE_COLOR_BUFFER_OUT(Result);
+    
+    GSMetaTag(node_input);
+    color_buffer B;
+    
+    GSMetaTag(node_output);
+    color_buffer Result;
 };
 
 NODE_PROC(MultiplyPatterns, multiply_patterns_data)
 {
-    led* LED = Data->ResultLEDs;
+    led* LED = Data->Result.LEDs;
-    for (s32 l = 0; l < Data->ResultLEDCount; l++)
+    for (s32 l = 0; l < Data->Result.LEDCount; l++)
     {
-        Assert(LED->Index >= 0 && LED->Index < Data->ResultLEDCount);
+        Assert(LED->Index >= 0 && LED->Index < Data->Result.LEDCount);
         
-        s32 AR = Data->AColors[LED->Index].R;
+        s32 AR = Data->A.Colors[LED->Index].R;
-        s32 AG = Data->AColors[LED->Index].G;
+        s32 AG = Data->A.Colors[LED->Index].G;
-        s32 AB = Data->AColors[LED->Index].B;
+        s32 AB = Data->A.Colors[LED->Index].B;
         
-        s32 BR = Data->BColors[LED->Index].R;
+        s32 BR = Data->B.Colors[LED->Index].R;
-        s32 BG = Data->BColors[LED->Index].G;
+        s32 BG = Data->B.Colors[LED->Index].G;
-        s32 BB = Data->BColors[LED->Index].B;
+        s32 BB = Data->B.Colors[LED->Index].B;
         
         s32 RCombined = (AR * BR) / 255;
         s32 GCombined = (AG * BG) / 255;
         s32 BCombined = (AB * BB) / 255;
         
-        Data->ResultColors[LED->Index].R = (u8)RCombined;
+        Data->Result.Colors[LED->Index].R = (u8)RCombined;
-        Data->ResultColors[LED->Index].G = (u8)GCombined;
+        Data->Result.Colors[LED->Index].G = (u8)GCombined;
-        Data->ResultColors[LED->Index].B = (u8)BCombined;
+        Data->Result.Colors[LED->Index].B = (u8)BCombined;
         
         LED++;
     }

src/foldhaus_node.h

@@ -12,19 +12,12 @@ typedef enum node_type node_type;
 
 #define DEFAULT_NODE_DIMENSION v2{125, 150}
 
-#define NODE_COLOR_BUFFER \
+struct color_buffer
-led* LEDs; \
+{
-pixel* Colors; \
+    led* LEDs;
+    pixel* Colors;
     s32 LEDCount;
-
+};
-#define NAMED_NODE_COLOR_BUFFER(name) \
-led* name##LEDs; \
-pixel* name##Colors; \
-s32 name##LEDCount;
-
-#define NODE_COLOR_BUFFER_INOUT NODE_COLOR_BUFFER
-#define NODE_COLOR_BUFFER_IN(name) NAMED_NODE_COLOR_BUFFER(name)
-#define NODE_COLOR_BUFFER_OUT(name) NAMED_NODE_COLOR_BUFFER(name)
 
 // TODO(Peter): Generate this
 enum struct_member_type
@@ -115,7 +108,8 @@ void proc_name(input_type* Data, r32 DeltaTime)
 
 struct output_node_data
 {
-    NODE_COLOR_BUFFER_IN(Result);
+    GSMetaTag(node_input);
+    color_buffer Result;
 };
 
 void OutputNode(output_node_data* Data, r32 DeltaTime)

src/foldhaus_text_entry.cpp

@@ -24,7 +24,7 @@ PipeSearchStringToDestination (text_entry* Input)
         
         case TextTranslateTo_R32:
         {
-            parse_result FloatParseResult = ParseFloat(Input->Buffer.Memory, Input->Buffer.Length);
+            parse_result FloatParseResult = ParseFloat(StringExpand(Input->Buffer));
             *Input->Destination.FloatDest = FloatParseResult.FloatValue;
         }break;
         

src/generated/gs_meta_generated_typeinfo.h

@@ -0,0 +1,67 @@
+enum gsm_struct_type
+{
+gsm_StructType_sin_wave_data,
+gsm_StructType_r32,
+gsm_StructType_multiply_patterns_data,
+gsm_StructType_color_buffer,
+gsm_StructType_led,
+gsm_StructType_s32,
+gsm_StructType_v4,
+gsm_StructType_float,
+gsm_StructType_pixel,
+gsm_StructType_u8,
+gsm_StructTypeCount,
+};
+
+static gsm_struct_member_type_info StructMembers_sin_wave_data[] = {
+{ "Period", 6, (u64)&((sin_wave_data*)0)->Period },
+{ "Min", 3, (u64)&((sin_wave_data*)0)->Min },
+{ "Max", 3, (u64)&((sin_wave_data*)0)->Max },
+{ "Result", 6, (u64)&((sin_wave_data*)0)->Result },
+{ "Accumulator", 11, (u64)&((sin_wave_data*)0)->Accumulator },
+};
+static gsm_struct_member_type_info StructMembers_v4[] = {
+{ "x", 1, (u64)&((v4*)0)->x },
+{ "y", 1, (u64)&((v4*)0)->y },
+{ "z", 1, (u64)&((v4*)0)->z },
+{ "w", 1, (u64)&((v4*)0)->w },
+{ "r", 1, (u64)&((v4*)0)->r },
+{ "g", 1, (u64)&((v4*)0)->g },
+{ "b", 1, (u64)&((v4*)0)->b },
+{ "a", 1, (u64)&((v4*)0)->a },
+{ "E", 1, (u64)&((v4*)0)->E },
+};
+static gsm_struct_member_type_info StructMembers_led[] = {
+{ "Index", 5, (u64)&((led*)0)->Index },
+{ "Position", 8, (u64)&((led*)0)->Position },
+};
+static gsm_struct_member_type_info StructMembers_pixel[] = {
+{ "R", 1, (u64)&((pixel*)0)->R },
+{ "G", 1, (u64)&((pixel*)0)->G },
+{ "B", 1, (u64)&((pixel*)0)->B },
+{ "Channels", 8, (u64)&((pixel*)0)->Channels },
+};
+static gsm_struct_member_type_info StructMembers_color_buffer[] = {
+{ "LEDs", 4, (u64)&((color_buffer*)0)->LEDs },
+{ "Colors", 6, (u64)&((color_buffer*)0)->Colors },
+{ "LEDCount", 8, (u64)&((color_buffer*)0)->LEDCount },
+};
+static gsm_struct_member_type_info StructMembers_multiply_patterns_data[] = {
+{ "A", 1, (u64)&((multiply_patterns_data*)0)->A },
+{ "B", 1, (u64)&((multiply_patterns_data*)0)->B },
+{ "Result", 6, (u64)&((multiply_patterns_data*)0)->Result },
+};
+
+static gsm_struct_type_info StructTypes[] = {
+{ gsm_StructType_sin_wave_data, "sin_wave_data", 13, 20, 0, 0, StructMembers_sin_wave_data, 5 },
+{ gsm_StructType_r32, "r32", 3, 4, 0, 0, 0, 0 },
+{ gsm_StructType_multiply_patterns_data, "multiply_patterns_data", 22, 60, 0, 0, StructMembers_multiply_patterns_data, 3 },
+{ gsm_StructType_color_buffer, "color_buffer", 12, 20, 0, 0, StructMembers_color_buffer, 3 },
+{ gsm_StructType_led, "led", 3, 20, 0, 0, StructMembers_led, 2 },
+{ gsm_StructType_s32, "s32", 3, 4, 0, 0, 0, 0 },
+{ gsm_StructType_v4, "v4", 2, 16, 0, 0, StructMembers_v4, 3 },
+{ gsm_StructType_float, "float", 5, 4, 0, 0, 0, 0 },
+{ gsm_StructType_pixel, "pixel", 5, 3, 0, 0, StructMembers_pixel, 2 },
+{ gsm_StructType_u8, "u8", 2, 1, 0, 0, 0, 0 },
+};
+gsm_u32 StructTypesCount = 10;

src/panels/foldhaus_panel_node_graph.h

@@ -491,7 +491,7 @@ PANEL_RENDER_PROC(NodeGraph_Render)
     string TitleString = MakeStringLiteral("Available Nodes");
     DrawListElement(TitleString, &List, Mouse, RenderBuffer, State->Interface);
     
-    for (s32 i = 0; i < NodeSpecificationsCount; i++)
+    for (u32 i = 0; i < NodeSpecificationsCount; i++)
     {
         node_specification Spec = NodeSpecifications[i];
         string NodeName = MakeString(Spec.Name, Spec.NameLength);

src/test_patterns.h

@@ -6,13 +6,18 @@
 #ifndef TEST_PATTERNS_H
 
 
-NODE_STRUCT(solid_color_data)
+GSMetaTag(node_struct) 
+struct solid_color_data
 {
-    NODE_IN(v4, Color);
+    GSMetaTag(node_input); 
-    NODE_COLOR_BUFFER_OUT(Result);
+    v4 Color;
+    
+    GSMetaTag(node_output);
+    color_buffer Result;
 };
 
-NODE_PROC(SolidColorProc, solid_color_data)
+GSMetaTag(node_proc); // :TagParamsForNodeParamStructs 
+void SolidColorProc, solid_color_data* Data)
 {
     u8 R = (u8)GSClamp(0.f, (Data->Color.r * 255), 255.f);
     u8 G = (u8)GSClamp(0.f, (Data->Color.g * 255), 255.f);
@@ -30,15 +35,24 @@ NODE_PROC(SolidColorProc, solid_color_data)
     }
 }
 
-NODE_STRUCT(vertical_color_fade_data)
+GSMetaTag(node_struct) 
+struct vertical_color_fade_data
 {
-    NODE_IN(v4, Color);
+    GSMetaTag(node_input); 
-    NODE_IN(r32, Min);
+    v4 Color;
-    NODE_IN(r32, Max);
+    
-    NODE_COLOR_BUFFER_OUT(Result);
+    GSMetaTag(node_input); 
+    r32 Min;
+    
+    GSMetaTag(node_input); 
+    r32 Max;
+    
+    GSMetaTag(node_output);
+    color_buffer Result;
 };
 
-NODE_PROC(VerticalColorFadeProc, vertical_color_fade_data)
+GSMetaTag(node_proc); // :TagParamsForNodeParamStructs 
+void VerticalColorFadeProc, vertical_color_fade_data* Data)
 {
     r32 R = (Data->Color.r * 255);
     r32 G = (Data->Color.g * 255);
@@ -62,19 +76,36 @@ NODE_PROC(VerticalColorFadeProc, vertical_color_fade_data)
 }
 
 // Original -> DiscPatterns.pde : Revolving Discs
-NODE_STRUCT(revolving_discs_data)
+GSMetaTag(node_struct) 
+struct revolving_discs_data
 {
-    NODE_IN(r32, Rotation);
+    GSMetaTag(node_input); 
-    NODE_IN(r32, ThetaZ);
+    r32 Rotation;
-    NODE_IN(r32, ThetaY);
+    
-    NODE_IN(r32, DiscWidth);
+    GSMetaTag(node_input); 
-    NODE_IN(r32, InnerRadius);
+    r32 ThetaZ;
-    NODE_IN(r32, OuterRadius);
+    
-    NODE_IN(v4, Color);
+    GSMetaTag(node_input); 
-    NODE_COLOR_BUFFER_OUT(Result);
+    r32 ThetaY;
+    
+    GSMetaTag(node_input); 
+    r32 DiscWidth;
+    
+    GSMetaTag(node_input); 
+    r32 InnerRadius;
+    
+    GSMetaTag(node_input); 
+    r32 OuterRadius;
+    
+    GSMetaTag(node_input); 
+    v4 Color;
+    
+    GSMetaTag(node_output);
+    color_buffer Result;
 };
 
-NODE_PROC(RevolvingDiscs, revolving_discs_data)
+GSMetaTag(node_proc); // :TagParamsForNodeParamStructs 
+void RevolvingDiscs, revolving_discs_data* Data)
 {
     DEBUG_TRACK_FUNCTION;