Separating out different parts of the meta system.

meta/gs_meta_error.h

@@ -1,98 +1,68 @@
-#define MAX_ERROR_LENGTH 256
 
-struct error
+struct error_buffer
 {
-    char Backbuffer[MAX_ERROR_LENGTH];
-    string Buffer;
+    char* Backbuffer;
+    string* Contents;
 };
 
-struct error_list_buffer
+#define ERROR_MAX_LENGTH 256
+#define ERROR_BUFFER_SIZE 256
+struct errors
 {
-    error* List;
-    s32 Used;
-    s32 Max;
-    error_list_buffer* Next;
+    error_buffer* Buffers;
+    u32 BuffersCount;
+    u32 Used;
 };
 
-struct error_list
-{
-    error_list_buffer* Head;
-    s32 TotalUsed;
-    s32 TotalMax;
-};
-
-#define ERROR_LIST_GROW_SIZE 32
-
 internal void 
-GrowErrorList (error_list* Errors)
+PushFError (errors* Errors, char* Format, ...)
 {
-    Assert(Errors);
-    
-    s32 ExtensionSize = sizeof(error_list_buffer) + (sizeof(error) * ERROR_LIST_GROW_SIZE);
-    u8* ExtensionMemory = (u8*)malloc(ExtensionSize);
-    
-    error_list_buffer* Extension = (error_list_buffer*)ExtensionMemory;
-    Extension->Used = 0;
-    Extension->Max = ERROR_LIST_GROW_SIZE;
-    Extension->List = (error*)(ExtensionMemory + sizeof(error_list_buffer));
-    
-    Extension->Next = Errors->Head;
-    Errors->Head = Extension;
-    
-    Errors->TotalMax += ERROR_LIST_GROW_SIZE;
-}
-
-#define ErrorAssert(condition, list, format, ...) \
-if (!(condition)) { LogError_((list), __FILE__, __LINE__, (format), __VA_ARGS__); }
-
-#define LogError(list, format, ...) LogError_((list), __FILE__, __LINE__, (format), __VA_ARGS__)
-
-internal void
-LogError_ (error_list* Errors, char* File, s32 Line, char* Format, ...)
-{
-    if (Errors->TotalUsed >= Errors->TotalMax)
+    if (Errors->Used >= (Errors->BuffersCount * ERROR_BUFFER_SIZE))
     {
-        GrowErrorList(Errors);
+        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;
+        }
     }
     
-    error* Error = (Errors->Head->List + Errors->Head->Used++);
-    Errors->TotalUsed++;
-    
-    InitializeEmptyString(&Error->Buffer, Error->Backbuffer, MAX_ERROR_LENGTH);
+    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);
-    
-    PrintF(&Error->Buffer, "%s(%d): ", File, Line);
-    Error->Buffer.Length += PrintFArgsList(Error->Buffer.Memory + Error->Buffer.Length,
-                                           Error->Buffer.Max - Error->Buffer.Length,
-                                           Format, Args);
-    
+    NewError->Length = PrintFArgsList(NewError->Memory, NewError->Max, Format, Args);
     va_end(Args);
 }
 
-internal void
-PrintErrorListBuffer (error_list_buffer* Buffer)
+internal string*
+TakeError (errors* Errors)
 {
-    if (Buffer->Next)
-    {
-        PrintErrorListBuffer(Buffer->Next);
-    }
-    
-    for (s32 i = 0; i < Buffer->Used; i++)
-    {
-        error* Error = Buffer->List + i;
-        NullTerminate(&Error->Buffer);
-        printf(Error->Backbuffer);
-        printf("\n");
-    }
+    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
-PrintErrorList (error_list Errors)
+PrintAllErrors (errors Errors)
 {
-    if (Errors.Head)
+    for (u32 i = 0; i < Errors.Used; i++)
     {
-        PrintErrorListBuffer(Errors.Head);
+        u32 BufferIndex = i / ERROR_BUFFER_SIZE;
+        u32 IndexInBuffer = i % ERROR_BUFFER_SIZE;
+        string Error = Errors.Buffers[BufferIndex].Contents[IndexInBuffer];
+        printf("%.*s\n", StringExpand(Error));
     }
 }

meta/gs_meta_typeinfo_generator.h

@@ -0,0 +1,168 @@
+//
+// File: gs_meta_typeinfo_generator.h
+// Author: Peter Slattery
+// Creation Date: 2020-01-19
+//
+#ifndef GS_META_TYPEINFO_GENERATOR_H
+
+#include <gs_language.h>
+#include <gs_string.h>
+#include <gs_string_builder.h>
+
+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);
+        }
+    }
+}
+
+
+
+#define GS_META_TYPEINFO_GENERATOR_H
+#endif // GS_META_TYPEINFO_GENERATOR_H