Support matrix type in core:odin

core/odin/ast/ast.odin

@@ -224,6 +224,15 @@ Slice_Expr :: struct {
 	close:    tokenizer.Pos,
 }
 
+Matrix_Index_Expr :: struct {
+	using node: Expr,
+	expr:         ^Expr,
+	open:         tokenizer.Pos,
+	row_index:    ^Expr,
+	column_index: ^Expr,
+	close:        tokenizer.Pos,
+}
+
 Call_Expr :: struct {
 	using node: Expr,
 	inlining: Proc_Inlining,
@@ -739,3 +748,11 @@ Relative_Type :: struct {
 	tag:  ^Expr,
 	type: ^Expr,
 }
+
+Matrix_Type :: struct {
+	using node: Expr,
+	tok_pos:      tokenizer.Pos,
+	row_count:    ^Expr,
+	column_count: ^Expr,
+	elem:         ^Expr,
+}

core/odin/ast/clone.odin

@@ -117,6 +117,10 @@ clone_node :: proc(node: ^Node) -> ^Node {
 	case Index_Expr:
 		r.expr = clone(r.expr)
 		r.index = clone(r.index)
+	case Matrix_Index_Expr:
+		r.expr = clone(r.expr)
+		r.row_index = clone(r.row_index)
+		r.column_index = clone(r.column_index)
 	case Deref_Expr:
 		r.expr = clone(r.expr)
 	case Slice_Expr:
@@ -275,7 +279,10 @@ clone_node :: proc(node: ^Node) -> ^Node {
 	case Map_Type:
 		r.key = clone(r.key)
 		r.value = clone(r.value)
-
+	case Matrix_Type:
+		r.row_count = clone(r.row_count)
+		r.column_count = clone(r.column_count)
+		r.elem = clone(r.elem)
 	case:
 		fmt.panicf("Unhandled node kind: %T", r)
 	}

core/odin/ast/walk.odin

@@ -110,6 +110,10 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 	case Index_Expr:
 		walk(v, n.expr)
 		walk(v, n.index)
+	case Matrix_Index_Expr:
+		walk(v, n.expr)
+		walk(v, n.row_index)
+		walk(v, n.column_index)
 	case Deref_Expr:
 		walk(v, n.expr)
 	case Slice_Expr:
@@ -398,6 +402,10 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 	case Relative_Type:
 		walk(v, n.tag)
 		walk(v, n.type)
+	case Matrix_Type:
+		walk(v, n.row_count)
+		walk(v, n.column_count)
+		walk(v, n.elem)
 
 	case:
 		fmt.panicf("ast.walk: unexpected node type %T", n)