Completely revamp class-new system. Add numem hooks

Author: LunaTheFoxgirl

dub.sdl

@@ -5,8 +5,6 @@ copyright "Copyright © 2023, Inochi2D Project"
 license "BSD 2-clause"
 targetPath "out/"
 
-dependency "tinyd-rt" version=">=0.0.0" optional=true
-
 buildOptions "debugInfoC" platform="windows"
 
 configuration "main" {

source/numem/all.d

@@ -6,16 +6,10 @@
 */
 
 /**
-    Automatically imports all of the numem types.
+    Automatically imports all of the base numem functionality.
+    Some extra functionality has to be 
 */
+deprecated("To import core numem functionality, just import numem.")
 module numem.all;
 
-public import numem.core;
-public import numem.core.memory;
-public import numem.collections;
-public import numem.core.exception;
-public import numem.io;
-public import numem.string;
-public import numem.conv;
-public import numem.events;
-public import numem.format;
+public import numem;

source/numem/collections/map.d

@@ -258,7 +258,7 @@ unittest {
     // Associative array of ints that are
     // indexed by string keys.
     // The KeyType is string.
-    map!(string, int) aa = nogc_construct!(map!(string, int))(); 
+    map!(string, int) aa; 
     aa["hello"] = 3; // set value associated with key "hello" to 3
     int value = aa["hello"]; // lookup value from a key
     assert(value == 3);

source/numem/collections/set.d

@@ -162,7 +162,7 @@ unittest {
 
 @("set: insertion, deletion and testing")
 unittest {
-    set!(string) keywords = nogc_construct!(set!string)();
+    set!(string) keywords;
 
     assert(keywords.insert("public"));
     assert(keywords.insert("private"));

source/numem/collections/vector.d

@@ -687,8 +687,7 @@ alias weak_vector(T) = VectorImpl!(T, false);
 
 @("vector: Issue #2")
 unittest {
-    class A {
-    }
+    class A { }
     shared_ptr!A a = shared_new!A();
     vector!(shared_ptr!A) v;
     v ~= a; // Used to crash, see Issue #2

source/numem/conv.d

@@ -9,9 +9,15 @@
     Utilities for converting between some basic types
 */
 module numem.conv;
+import numem.string;
+import numem.format;
 import core.stdc.stdlib;
 import std.traits;
-import numem.all;
+
+
+//
+//      TODO: REIMPLEMENT ALL OF THIS IN PURE D.
+//
 
 @nogc:
 

source/numem/core/env.d

@@ -0,0 +1,129 @@
+/*
+    Copyright © 2023, Inochi2D Project
+    Distributed under the 2-Clause BSD License, see LICENSE file.
+    
+    Authors: Luna Nielsen
+*/
+
+/**
+    Numem Hooks.
+
+    This file contains all the core hooks numem calls internally to handle memory.
+    Given that some platforms may not have a C standard library, these hooks allow you
+    to override how numem handles memory for such platforms from an external library.
+
+    In this case, all of the hooks presented here will need to be implemented to cover
+    all of the used internal hooks within numem.
+
+    Various extra hooks are provided in other files throughout numem, but are optional.
+*/
+module numem.core.hooks;
+public import core.attribute : weak;
+
+@nogc nothrow:
+
+/**
+    Allocates `bytes` worth of memory.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib alloc.
+*/
+@weak
+extern(C)
+void* nuAlloc(size_t bytes) {
+    import core.stdc.stdlib : malloc;
+    return malloc(bytes);
+}
+
+
+/**
+    Reallocates memory at `data` to be `bytes` worth of memory.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib realloc.
+*/
+@weak
+extern(C)
+void* nuRealloc(void* data, size_t newSize) {
+    import core.stdc.stdlib : realloc;
+    return realloc(data, newSize);
+}
+
+/**
+    Frees the memory at `data`.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib alloc.
+*/
+@weak
+extern(C)
+void nuFree(void* data) {
+    import core.stdc.stdlib : free;
+    free(data);
+}
+
+/**
+    Copies `bytes` worth of data from `src` into `dst`.
+    Memory needs to be allocated and within range.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib memcpy.
+*/
+@weak
+extern(C)
+void* nuMemcpy(inout(void)* dst, inout(void)* src, size_t bytes) {
+    import core.stdc.string : memcpy;
+    return memcpy(cast(void*)dst, cast(void*)src, bytes);
+}
+
+/**
+    Moves `bytes` worth of data from `src` into `dst`.
+    Memory needs to be allocated and within range.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib memmove.
+*/
+@weak
+extern(C)
+void* nuMemmove(void* dst, void* src, size_t bytes) {
+    import core.stdc.string : memmove;
+    return memmove(dst, src, bytes);
+}
+
+/**
+    Fills `dst` with `value` for `bytes` bytes.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib memset.
+*/
+void* nuMemset(void* dst, ubyte value, size_t bytes) {
+    import core.stdc.string : memset;
+    return memset(dst, value, bytes);
+}
+
+/**
+    Hook which forcefully quits or crashes the application due to an invalid state.
+    
+    NOTE: External libraries may override this
+    implementation.
+    
+    By default calls C stdlib abort.
+*/
+@weak
+extern(C)
+void nuAbort() {
+    import core.stdc.stdlib : abort;
+    abort();
+}