Correctly generate valid CPP reflected metadata
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@ -4,7 +4,7 @@
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#define DQN_REFLECT
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#define DQN_REFLECT_META(...)
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enum struct DqnReflect_StructMemberMetadataType { String, Int, Float };
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enum DqnReflect_StructMemberMetadataType { String, Int, Float };
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struct DqnReflect_StructMemberMetadata
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{
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@ -22,23 +22,18 @@ struct DqnReflect_StructMember
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char const *name;
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int name_len;
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#if 0
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DqnReflect_StructMemberMetadata *metadata;
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DqnReflect_StructMemberMetadata const *metadata;
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int metadata_len;
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#endif
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};
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struct DqnReflect_Struct
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{
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char const *name;
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int name_len;
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DqnReflect_StructMember *members;
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DqnReflect_StructMember const *members;
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int members_len;
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};
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// #include "../Data/DqnReflect_TestData.h"
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// #include "Output.cpp"
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//
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// HOW TO REFLECT ANNOTATED CODE
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// Define in the preprocessor, DQN_REFLECT_IMPLEMENTATION and compile
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@ -828,9 +823,75 @@ void ParseCPPStruct(CPPTokeniser *tokeniser)
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}
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}
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// TODO(doyle): Don't support anonymous/nameless structs yet
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if (name.len == 0)
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return;
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//
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// Write DqnReflect_StructMemberMetadata Definition
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//
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for (CPPDeclLinkedList<CPPVariableDecl> const *member = struct_members; member; member = member->next)
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{
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CPPVariableDecl const *decl = &member->value;
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if (member->metadata_array.len <= 0)
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continue;
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CPPTokeniser_SprintfToFile(
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tokeniser,
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"DqnReflect_StructMemberMetadata const DqnReflect_%.*s_%.*s_StructMemberMetadata[] =\n{\n",
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name.len,
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name.str,
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decl->name.len,
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decl->name.str);
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tokeniser->indent_level++;
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for (CPPReflectMetadataEntry const &entry : member->metadata_array)
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{
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CPPTokeniser_SprintfToFile(tokeniser, "{\n");
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tokeniser->indent_level++;
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CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_StructMemberMetadataType::String,\n");
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// metadata->key
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CPPTokeniser_SprintfToFile(tokeniser, "STR_AND_LEN(\"%.*s\"),\n", entry.key.len, entry.key.str);
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// metadata->value
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CPPTokeniser_SprintfToFile(tokeniser, "STR_AND_LEN(\"%.*s\"),\n", entry.value.len, entry.value.str);
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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}
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "};\n\n");
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}
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//
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// Write DqnReflect_StructMembers Definition
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//
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{
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CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_StructMember const DqnReflect_%.*s_StructMembers[] =\n{\n", name.len, name.str);
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tokeniser->indent_level++;
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for (CPPDeclLinkedList<CPPVariableDecl> const *member = struct_members; member; member = member->next)
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{
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CPPVariableDecl const *decl = &member->value;
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CPPTokeniser_SprintfToFile(tokeniser, "{\n");
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tokeniser->indent_level++;
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CPPTokeniser_SprintfToFile(tokeniser, "STR_AND_LEN(\"%.*s\"),\n", decl->type.len, decl->type.str);
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CPPTokeniser_SprintfToFile(tokeniser, "STR_AND_LEN(\"%.*s\"),\n", decl->name.len, decl->name.str);
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if (member->metadata_array.len <= 0) CPPTokeniser_SprintfToFile(tokeniser, "nullptr, // metadata\n");
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else CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_%.*s_%.*s_StructMemberMetadata,\n", name.len, name.str, decl->name.len, decl->name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "%d // metadata_len\n", member->metadata_array.len);
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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}
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "};\n\n");
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}
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//
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// Write DqnReflect_Struct Definition
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//
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@ -838,64 +899,8 @@ void ParseCPPStruct(CPPTokeniser *tokeniser)
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CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_Struct const DqnReflect_%.*s_Struct =\n{\n", name.len, name.str);
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tokeniser->indent_level++;
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CPPTokeniser_SprintfToFile(tokeniser, "\"%.*s\", // name\n", name.len, name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DQN_REFLECT_CHAR_COUNT(\"%.*s\"), // name_len\n", name.len, name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "{ // members\n");
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tokeniser->indent_level++;
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for (CPPDeclLinkedList<CPPVariableDecl> const *link = struct_members; link; link = link->next)
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{
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CPPVariableDecl const *decl = &link->value;
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CPPTokeniser_SprintfToFile(tokeniser, "{\n");
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tokeniser->indent_level++;
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// member->type
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CPPTokeniser_SprintfToFile(tokeniser, "\"%.*s\",\n", decl->type.len, decl->type.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DQN_REFLECT_CHAR_COUNT(\"%.*s\"),\n", decl->type.len, decl->type.str);
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// member->name
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CPPTokeniser_SprintfToFile(tokeniser, "\"%.*s\",\n", decl->name.len, decl->name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DQN_REFLECT_CHAR_COUNT(\"%.*s\"),\n", decl->name.len, decl->name.str);
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// member->metadata
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if (1)
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{
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if (link->metadata_array.len <= 0)
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{
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CPPTokeniser_SprintfToFile(tokeniser, "nullptr, // metadata\n");
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}
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else
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{
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CPPTokeniser_SprintfToFile(tokeniser, "{ // metadata\n");
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tokeniser->indent_level++;
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for (CPPReflectMetadataEntry const &entry : link->metadata_array)
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{
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CPPTokeniser_SprintfToFile(tokeniser, "{\n");
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tokeniser->indent_level++;
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CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_StructMemberMetadataType::String,\n");
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// metadata->key
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CPPTokeniser_SprintfToFile(tokeniser, "\"%.*s\",\n", entry.key.len, entry.key.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DQN_REFLECT_CHAR_COUNT(\"%.*s\"),\n", entry.key.len, entry.key.str);
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// metadata->value
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CPPTokeniser_SprintfToFile(tokeniser, "\"%.*s\",\n", entry.value.len, entry.value.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DQN_REFLECT_CHAR_COUNT(\"%.*s\"),\n", entry.value.len, entry.value.str);
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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}
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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}
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CPPTokeniser_SprintfToFile(tokeniser, "%d // metadata_len\n", link->metadata_array.len);
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}
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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}
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tokeniser->indent_level--;
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CPPTokeniser_SprintfToFile(tokeniser, "},\n");
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CPPTokeniser_SprintfToFile(tokeniser, "STR_AND_LEN(\"%.*s\"),\n", name.len, name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "DqnReflect_%.*s_StructMembers, // members\n", name.len, name.str);
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CPPTokeniser_SprintfToFile(tokeniser, "%d // members_len\n", struct_members_len);
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tokeniser->indent_level--;
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@ -949,8 +954,10 @@ int main(int argc, char *argv[])
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"#define DQN_REFLECT_GENERATED_H\n\n"
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"// This is an auto generated file using Dqn_Reflect\n"
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"\n"
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"#define DQN_REFLECT_ARRAY_COUNT(array) sizeof(array)/sizeof((array)[0])\n"
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"#define DQN_REFLECT_CHAR_COUNT(str) (DQN_REFLECT_ARRAY_COUNT(str) - 1)\n"
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" // NOTE: These macros are undefined at the end of the file so to not pollute namespace\n"
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"#define ARRAY_COUNT(array) sizeof(array)/sizeof((array)[0])\n"
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"#define CHAR_COUNT(str) (ARRAY_COUNT(str) - 1)\n"
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"#define STR_AND_LEN(str) str, CHAR_COUNT(str)\n"
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"\n");
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for (usize arg_index = 1; arg_index < argc; ++arg_index)
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@ -1152,7 +1159,12 @@ int main(int argc, char *argv[])
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file_include_contents_hash_define);
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}
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fprintf(output_file, "#endif // DQN_REFLECT_GENERATED_H\n");
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fprintf(output_file,
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"#undef ARRAY_COUNT\n"
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"#undef CHAR_COUNT\n"
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"#undef STR_AND_LEN\n"
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"#endif // DQN_REFLECT_GENERATED_H\n"
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);
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fclose(output_file);
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return 0;
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