add Mindmap and Project data type

src/hncore/Mindmap.zig

@@ -0,0 +1,62 @@
+const std = @import("std");
+
+const Digraph = @import("./Digraph.zig");
+
+pub const Node        = @import("./Node.zig");
+pub const NodeList    = std.ArrayList(*Node);
+pub const NodeDigraph = Digraph.Container(*Node, Digraph.lessThanFuncFor(*Node));
+
+///
+alloc: std.mem.Allocator,
+
+///
+nodes: NodeList,
+
+///
+digraph: NodeDigraph,
+
+///
+root: *Node,
+
+///
+pub fn init(alloc: std.mem.Allocator) !@This() {
+    var nodes = NodeList.init(alloc);
+    errdefer nodes.deinit();
+
+    var digraph = try NodeDigraph.init(alloc, &.{});
+    errdefer digraph.deinit();
+
+    var root = try alloc.create(Node);
+    errdefer alloc.destroy(root);
+
+    root.* = try Node.init(alloc, 0, "helloworld");
+    errdefer root.deinit(alloc);
+
+    try nodes.append(root);
+
+    return .{
+        .alloc   = alloc,
+        .nodes   = nodes,
+        .digraph = digraph,
+        .root    = root,
+    };
+}
+///
+pub fn deinit(self: *@This()) void {
+    for (self.nodes) |node| {
+        node.deinit(self.alloc);
+        self.alloc.destroy(node);
+    }
+    self.digraph.deinit();
+    self.nodes.deinit();
+}
+
+///
+pub fn serialize(self: *const @This(), writer: anytype) !void {
+    _ = self;
+    _ = writer;
+}
+///
+pub fn deserialize(reader: anytype) !@This() {
+    _ = reader;
+}

src/hncore/Project.zig

@@ -0,0 +1,16 @@
+const std = @import("std");
+
+const Mindmap = @import("./Mindmap.zig");
+
+///
+mindmap: Mindmap,
+
+///
+pub fn init(alloc: std.mem.Allocator) !@This() {
+    return .{
+        .mindmap = try .init(alloc),
+    };
+}
+pub fn deinit(self: *@This()) void {
+    self.mindmap.deinit();
+}

src/hncore/root.zig

@@ -1,6 +1,6 @@
-pub const Digraph = @import("./Digraph.zig").Digraph;
-pub const Node    = @import("./Node.zig").Node;
-pub const Store   = @import("./Store.zig").Store;
+pub const Mindmap = @import("./Mindmap.zig");
+pub const Node    = @import("./Node.zig");
+pub const Project = @import("./Project.zig");
 
 test {
     @import("std").testing.refAllDecls(@This());