Added Zig and structs with JSON parsing

Author Mitja Felicijan <mitja.felicijan@gmail.com> 2024-09-15 11:09:26 +0200
Committer Mitja Felicijan <mitja.felicijan@gmail.com> 2024-09-16 03:32:51 +0200
Commit a88439202868a90745fa56f489ac698bbda73c45 (patch)
-rw-r--r-- zig-structs/Makefile 7
-rw-r--r-- zig-structs/player.json 1
-rw-r--r-- zig-structs/player.zig 6
-rw-r--r-- zig-structs/read.zig 23
-rw-r--r-- zig-structs/write.zig 19
5 files changed, 56 insertions, 0 deletions
diff --git a/zig-structs/Makefile b/zig-structs/Makefile 
  
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default: write read
 
  
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write:
 
  
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	zig run write.zig
 
  
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read:
 
  
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	zig run read.zig
diff --git a/zig-structs/player.json b/zig-structs/player.json 
  
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{"name":"Johnny Blaze","age":34}
diff --git a/zig-structs/player.zig b/zig-structs/player.zig 
  
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const std = @import("std");
 
  
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pub const Player = struct {
 
  
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    name: []const u8,
 
  
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    age: u8,
 
  
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};
diff --git a/zig-structs/read.zig b/zig-structs/read.zig 
  
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const std = @import("std");
 
  
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const player = @import("player.zig");
 
  
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pub fn main() !void {
 
  
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    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
 
  
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    const allocator = gpa.allocator();
 
  
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    defer {
 
  
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        _ = gpa.deinit();
 
  
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    }
 
  
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    const file = try std.fs.cwd().openFile("player.json", .{});
 
  
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    defer file.close();
 
  
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    const stat = try file.stat();
 
  
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    const buffer = try file.readToEndAlloc(allocator, stat.size);
 
  
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    defer allocator.free(buffer);
 
  
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    const parsed = try std.json.parseFromSlice(player.Player, allocator, buffer, .{});
 
  
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    defer parsed.deinit();
 
  
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    const p: player.Player = parsed.value;
 
  
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    std.debug.print("Reading player with data: {{ Name: {s}, Age: {d} }}\n", .{ p.name, p.age });
 
  
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}
diff --git a/zig-structs/write.zig b/zig-structs/write.zig 
  
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const std = @import("std");
 
  
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const player = @import("player.zig");
 
  
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pub fn main() !void {
 
  
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    const p = player.Player{
 
  
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        .name = "Johnny Blaze",
 
  
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        .age = 34,
 
  
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    };
 
  
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    std.debug.print("Writting player with data: {{ Name: {s}, Age: {d} }}\n", .{ p.name, p.age });
 
  
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    var playerJSON = try std.json.stringifyAlloc(std.heap.page_allocator, p, .{});
 
  
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    defer std.heap.page_allocator.free(playerJSON);
 
  
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    var file = try std.fs.cwd().createFile("player.json", .{});
 
  
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    defer file.close();
 
  
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    _ = try file.writeAll(playerJSON);
 
  
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}