default struct fields

compiler/ast/ast.odin

@@ -304,6 +304,14 @@ Declaration_Alias :: struct {
 	diagnostic:  source.Diagnostic_Id,
 }
 
+Struct_Field_Default :: struct {
+	record: Type_Syntax,
+	field:  symbol.Id,
+	expr:   Expr_Id,
+	pkg:    Package_Id,
+	file:   File_Id,
+}
+
 File :: struct {
 	source:  source.Source_Id,
 	pkg:     Package_Id,
@@ -357,6 +365,7 @@ Module :: struct {
 	c_trampolines: [dynamic]Trampoline,
 	strings:    [dynamic]string,
 	type_fields: [dynamic]types.Field,
+	struct_field_defaults: [dynamic]Struct_Field_Default,
 	type_uses:   [dynamic]Type_Use,
 	type_store: types.Store,
 	allocator:  mem.Allocator,
@@ -379,6 +388,7 @@ init_module :: proc(allocator := context.allocator) -> Module {
 	module.c_trampolines.allocator = allocator
 	module.strings.allocator = allocator
 	module.type_fields.allocator = allocator
+	module.struct_field_defaults.allocator = allocator
 	module.type_uses.allocator = allocator
 	return module
 }
@@ -436,6 +446,7 @@ destroy_module :: proc(module: ^Module) {
 	delete(module.c_trampolines)
 	delete(module.strings)
 	delete(module.type_fields)
+	delete(module.struct_field_defaults)
 	delete(module.type_uses)
 	types.destroy_store(&module.type_store)
 }