From c7cd286be9d4ede3129a309e2668686be4646f07 Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Thu, 19 Sep 2024 14:01:34 +0200
Subject: Added saving of struct to file in Zig and reading it back

---
 zig-struct-json/Makefile    |  7 +++++++
 zig-struct-json/player.json |  1 +
 zig-struct-json/player.zig  |  6 ++++++
 zig-struct-json/read.zig    | 23 +++++++++++++++++++++++
 zig-struct-json/write.zig   | 19 +++++++++++++++++++
 5 files changed, 56 insertions(+)
 create mode 100644 zig-struct-json/Makefile
 create mode 100644 zig-struct-json/player.json
 create mode 100644 zig-struct-json/player.zig
 create mode 100644 zig-struct-json/read.zig
 create mode 100644 zig-struct-json/write.zig

(limited to 'zig-struct-json')

diff --git a/zig-struct-json/Makefile b/zig-struct-json/Makefile
new file mode 100644
index 0000000..9afb087
--- /dev/null
+++ b/zig-struct-json/Makefile
@@ -0,0 +1,7 @@
+default: write read
+
+write:
+	zig run write.zig
+
+read:
+	zig run read.zig
diff --git a/zig-struct-json/player.json b/zig-struct-json/player.json
new file mode 100644
index 0000000..16cdeb6
--- /dev/null
+++ b/zig-struct-json/player.json
@@ -0,0 +1 @@
+{"name":"Johnny Blaze","age":34}
\ No newline at end of file
diff --git a/zig-struct-json/player.zig b/zig-struct-json/player.zig
new file mode 100644
index 0000000..6cbd354
--- /dev/null
+++ b/zig-struct-json/player.zig
@@ -0,0 +1,6 @@
+const std = @import("std");
+
+pub const Player = struct {
+    name: []const u8,
+    age: u8,
+};
diff --git a/zig-struct-json/read.zig b/zig-struct-json/read.zig
new file mode 100644
index 0000000..95d6390
--- /dev/null
+++ b/zig-struct-json/read.zig
@@ -0,0 +1,23 @@
+const std = @import("std");
+const player = @import("player.zig");
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    const allocator = gpa.allocator();
+    defer {
+        _ = gpa.deinit();
+    }
+
+    const file = try std.fs.cwd().openFile("player.json", .{});
+    defer file.close();
+
+    const stat = try file.stat();
+    const buffer = try file.readToEndAlloc(allocator, stat.size);
+    defer allocator.free(buffer);
+
+    const parsed = try std.json.parseFromSlice(player.Player, allocator, buffer, .{});
+    defer parsed.deinit();
+
+    const p: player.Player = parsed.value;
+    std.debug.print("Reading player with data: {{ Name: {s}, Age: {d} }}\n", .{ p.name, p.age });
+}
diff --git a/zig-struct-json/write.zig b/zig-struct-json/write.zig
new file mode 100644
index 0000000..9f58489
--- /dev/null
+++ b/zig-struct-json/write.zig
@@ -0,0 +1,19 @@
+const std = @import("std");
+const player = @import("player.zig");
+
+pub fn main() !void {
+    const p = player.Player{
+        .name = "Johnny Blaze",
+        .age = 34,
+    };
+
+    std.debug.print("Writting player with data: {{ Name: {s}, Age: {d} }}\n", .{ p.name, p.age });
+
+    var playerJSON = try std.json.stringifyAlloc(std.heap.page_allocator, p, .{});
+    defer std.heap.page_allocator.free(playerJSON);
+
+    var file = try std.fs.cwd().createFile("player.json", .{});
+    defer file.close();
+
+    _ = try file.writeAll(playerJSON);
+}
-- 
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