From 9f70db7f511667373e049dbea2d01d3f4c8d7a10 Mon Sep 17 00:00:00 2001
From: Brendan Hansen <brendan.f.hansen@gmail.com>
Date: Mon, 21 Jun 2021 18:59:41 -0500
Subject: [PATCH] laid out type_info structures

---
 core/type_info.onyx | 145 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 core/type_info.onyx

diff --git a/core/type_info.onyx b/core/type_info.onyx
new file mode 100644
index 00000000..ec435f15
--- /dev/null
+++ b/core/type_info.onyx
@@ -0,0 +1,145 @@
+// A lot of these names have been copied from JAI's introspection system. This is just because
+// I don't want to mentally bike-shed about the names; I just want to get something working.
+
+package core.type_info
+
+Type_Index :: #type u32
+type_table : [] ^Type_Info;
+
+Type_Info :: struct {
+    // This must match the order of the elements in onyxtypes.h
+    Kind :: enum {
+        Invalid           :: 0x00; // Unused
+        Basic             :: 0x01;
+        Pointer           :: 0x02;
+        Function          :: 0x03;
+        Struct            :: 0x04;
+        Compound          :: 0x05;
+        Array             :: 0x06;
+        Slice             :: 0x07;
+        Dynamic_Array     :: 0x08;
+        Variadic_Argument :: 0x09;
+        Enum              :: 0x0a;
+    }
+
+    kind := Kind.Invalid;
+    size: u32;
+
+    // Does this need to know alignment? Probably?
+    alignment: u32;
+}
+
+Type_Info_Basic :: struct {
+    use base : Type_Info;
+
+    // This must match the order of the elements in BasicKind in onyxtypes.h
+    Kind :: enum {
+        Void  :: 0x00;
+        Bool  :: 0x01;
+        I8    :: 0x03;
+        U8    :: 0x04;
+        I16   :: 0x05;
+        U16   :: 0x06;
+        I32   :: 0x07;
+        U32   :: 0x08;
+        I64   :: 0x09;
+        U64   :: 0x0a;
+
+        F32   :: 0x0c;
+        F64   :: 0x0d;
+
+        Rawptr :: 0x0e;
+
+        I8X16 :: 0x0f;
+        I16X8 :: 0x10;
+        I32X4 :: 0x11;
+        I64X2 :: 0x12;
+        F32X4 :: 0x13;
+        F64X2 :: 0x14;
+        V128  :: 0x15;
+    }
+
+    basic_kind: Kind;
+}
+
+Type_Info_Pointer :: struct {
+    use base : Type_Info;
+
+    @Rename
+    to: Type_Index;
+}
+
+Type_Info_Function :: struct {
+    use base : Type_Info;
+
+    return_type:        Type_Index;
+    parameter_types: [] Type_Index;
+
+    is_variadic: bool;
+}
+
+Type_Info_Array :: struct {
+    use base : Type_Info;
+
+    @Rename
+    of: Type_Index;
+    count: u32;
+}
+
+Type_Info_Slice :: struct {
+    use base : Type_Info;
+
+    @Rename
+    of: Type_Index;
+}
+
+Type_Info_Dynamic_Array :: struct {
+    use base : Type_Info;
+
+    @Rename
+    of: Type_Index;
+}
+
+Type_Info_Variadic_Argument :: struct {
+    use base : Type_Info;
+
+    @Rename
+    of: Type_Index;
+}
+
+Type_Info_Enum :: struct {
+    use base : Type_Info;
+
+    Member :: struct {
+        name: str;
+        value: u64; // This assumes enums are always represented as ints.
+    }
+
+    name: str;
+    backing_type: Type_Index;
+    members: [] Member;
+
+    is_flags: bool;
+}
+
+Type_Info_Struct :: struct {
+    use base : Type_Info;
+
+    Member :: struct {
+        name: str;
+        offset: u32;
+        type_index: Type_Index;
+
+        used: bool;
+        has_default: bool;
+    }
+
+    name: str;
+    members: [] Member;
+}
+
+Type_Info_Compound :: struct {
+    use base : Type_Info;
+
+    components : [] Type_Index;
+}
\ No newline at end of file
-- 
2.25.1