Add implicit selector expressions for in/notin

core/mem/allocators.odin

@@ -47,12 +47,10 @@ arena_allocator :: proc(arena: ^Arena) -> Allocator {
 arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
                              size, alignment: int,
                              old_memory: rawptr, old_size: int, flags: u64, location := #caller_location) -> rawptr {
-	using Allocator_Mode;
 	arena := cast(^Arena)allocator_data;
 
-
 	switch mode {
-	case Alloc:
+	case .Alloc:
 		total_size := size + alignment;
 
 		if arena.offset + total_size > len(arena.data) {
@@ -66,14 +64,14 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 		arena.peak_used = max(arena.peak_used, arena.offset);
 		return zero(ptr, size);
 
-	case Free:
+	case .Free:
 		// NOTE(bill): Free all at once
 		// Use Arena_Temp_Memory if you want to free a block
 
-	case Free_All:
+	case .Free_All:
 		arena.offset = 0;
 
-	case Resize:
+	case .Resize:
 		return default_resize_align(old_memory, old_size, size, alignment, arena_allocator(arena));
 	}
 
@@ -227,7 +225,6 @@ stack_allocator :: proc(stack: ^Stack) -> Allocator {
 stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
                              size, alignment: int,
                              old_memory: rawptr, old_size: int, flags: u64, location := #caller_location) -> rawptr {
-	using Allocator_Mode;
 	s := cast(^Stack)allocator_data;
 
 	if s.data == nil {
@@ -256,9 +253,9 @@ stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 	}
 
 	switch mode {
-	case Alloc:
+	case .Alloc:
 		return raw_alloc(s, size, alignment);
-	case Free:
+	case .Free:
 		if old_memory == nil {
 			return nil;
 		}
@@ -288,11 +285,11 @@ stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 		s.prev_offset = int(header.prev_offset);
 
 
-	case Free_All:
+	case .Free_All:
 		s.prev_offset = 0;
 		s.curr_offset = 0;
 
-	case Resize:
+	case .Resize:
 		if old_memory == nil {
 			return raw_alloc(s, size, alignment);
 		}
@@ -374,7 +371,6 @@ small_stack_allocator :: proc(stack: ^Small_Stack) -> Allocator {
 small_stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
                                    size, alignment: int,
                                    old_memory: rawptr, old_size: int, flags: u64, location := #caller_location) -> rawptr {
-	using Allocator_Mode;
 	s := cast(^Small_Stack)allocator_data;
 
 	if s.data == nil {
@@ -403,9 +399,9 @@ small_stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 	}
 
 	switch mode {
-	case Alloc:
+	case .Alloc:
 		return raw_alloc(s, size, alignment);
-	case Free:
+	case .Free:
 		if old_memory == nil {
 			return nil;
 		}
@@ -428,10 +424,10 @@ small_stack_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 
 		s.offset = int(old_offset);
 
-	case Free_All:
+	case .Free_All:
 		s.offset = 0;
 
-	case Resize:
+	case .Resize:
 		if old_memory == nil {
 			return raw_alloc(s, size, alignment);
 		}

core/strconv/strconv.odin

@@ -475,7 +475,7 @@ append_bits :: proc(buf: []byte, u: u64, base: int, is_signed: bool, bit_size: i
 	}
 	i-=1; a[i] = digits[u % b];
 
-	if Int_Flag.Prefix in flags {
+	if .Prefix in flags {
 		ok := true;
 		switch base {
 		case  2: i-=1; a[i] = 'b';
@@ -493,9 +493,9 @@ append_bits :: proc(buf: []byte, u: u64, base: int, is_signed: bool, bit_size: i
 	switch {
 	case neg:
 		i-=1; a[i] = '-';
-	case Int_Flag.Plus in flags:
+	case .Plus in flags:
 		i-=1; a[i] = '+';
-	case Int_Flag.Space in flags:
+	case .Space in flags:
 		i-=1; a[i] = ' ';
 	}
 

src/check_expr.cpp

@@ -2144,8 +2144,20 @@ void check_binary_expr(CheckerContext *c, Operand *x, Ast *node, bool use_lhs_as
 
 	case Token_in:
 	case Token_notin:
-		check_expr(c, x, be->left);
+		// IMPORTANT NOTE(bill): This uses right-left evaluation in type checking only no in
+
 		check_expr(c, y, be->right);
+
+		if (is_type_bit_set(y->type)) {
+			Type *elem = base_type(y->type)->BitSet.elem;
+			check_expr_with_type_hint(c, x, be->left, elem);
+		} else if (is_type_map(y->type)) {
+			Type *key = base_type(y->type)->Map.key;
+			check_expr_with_type_hint(c, x, be->left, key);
+		} else {
+			check_expr(c, x, be->left);
+		}
+
 		if (x->mode == Addressing_Invalid) {
 			return;
 		}