Compiled temapltes.

Benchmark cleanup

src/benchmarks/bench.zig

@@ -0,0 +1,172 @@
+//! Pugz Benchmark - Compiled Templates vs Pug.js
+//!
+//! Both Pugz and Pug.js benchmarks read from the same files:
+//!   src/benchmarks/templates/*.pug  (templates)
+//!   src/benchmarks/templates/*.json (data)
+//!
+//! Run Pugz:   zig build bench-all-compiled
+//! Run Pug.js: cd src/benchmarks/pugjs && npm install && npm run bench
+
+const std = @import("std");
+const tpls = @import("tpls");
+
+const iterations: usize = 2000;
+const templates_dir = "src/benchmarks/templates";
+
+// ═══════════════════════════════════════════════════════════════════════════
+// Data structures matching JSON files
+// ═══════════════════════════════════════════════════════════════════════════
+
+const SubFriend = struct {
+    id: i64,
+    name: []const u8,
+};
+
+const Friend = struct {
+    name: []const u8,
+    balance: []const u8,
+    age: i64,
+    address: []const u8,
+    picture: []const u8,
+    company: []const u8,
+    email: []const u8,
+    emailHref: []const u8,
+    about: []const u8,
+    tags: []const []const u8,
+    friends: []const SubFriend,
+};
+
+const Account = struct {
+    balance: i64,
+    balanceFormatted: []const u8,
+    status: []const u8,
+    negative: bool,
+};
+
+const Project = struct {
+    name: []const u8,
+    url: []const u8,
+    description: []const u8,
+};
+
+const SearchRecord = struct {
+    imgUrl: []const u8,
+    viewItemUrl: []const u8,
+    title: []const u8,
+    description: []const u8,
+    featured: bool,
+    sizes: ?[]const []const u8,
+};
+
+// ═══════════════════════════════════════════════════════════════════════════
+// Main
+// ═══════════════════════════════════════════════════════════════════════════
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer _ = gpa.deinit();
+    const allocator = gpa.allocator();
+
+    std.debug.print("\n", .{});
+    std.debug.print("╔═══════════════════════════════════════════════════════════════╗\n", .{});
+    std.debug.print("║   Compiled Zig Templates Benchmark ({d} iterations)          ║\n", .{iterations});
+    std.debug.print("║   Templates: {s}/*.pug                           ║\n", .{templates_dir});
+    std.debug.print("╚═══════════════════════════════════════════════════════════════╝\n", .{});
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Load JSON data
+    // ─────────────────────────────────────────────────────────────────────────
+    std.debug.print("\nLoading JSON data...\n", .{});
+
+    var data_arena = std.heap.ArenaAllocator.init(allocator);
+    defer data_arena.deinit();
+    const data_alloc = data_arena.allocator();
+
+    // Load all JSON files
+    const simple0 = try loadJson(struct { name: []const u8 }, data_alloc, "simple-0.json");
+    const simple1 = try loadJson(struct {
+        name: []const u8,
+        messageCount: i64,
+        colors: []const []const u8,
+        primary: bool,
+    }, data_alloc, "simple-1.json");
+    const simple2 = try loadJson(struct {
+        header: []const u8,
+        header2: []const u8,
+        header3: []const u8,
+        header4: []const u8,
+        header5: []const u8,
+        header6: []const u8,
+        list: []const []const u8,
+    }, data_alloc, "simple-2.json");
+    const if_expr = try loadJson(struct { accounts: []const Account }, data_alloc, "if-expression.json");
+    const projects = try loadJson(struct {
+        title: []const u8,
+        text: []const u8,
+        projects: []const Project,
+    }, data_alloc, "projects-escaped.json");
+    const search = try loadJson(struct { searchRecords: []const SearchRecord }, data_alloc, "search-results.json");
+    const friends_data = try loadJson(struct { friends: []const Friend }, data_alloc, "friends.json");
+
+    std.debug.print("Loaded. Starting benchmark...\n\n", .{});
+
+    var total: f64 = 0;
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Benchmark each template
+    // ─────────────────────────────────────────────────────────────────────────
+
+    // simple-0
+    total += try bench("simple-0", allocator, tpls.simple_0, simple0);
+
+    // simple-1
+    total += try bench("simple-1", allocator, tpls.simple_1, simple1);
+
+    // simple-2
+    total += try bench("simple-2", allocator, tpls.simple_2, simple2);
+
+    // if-expression
+    total += try bench("if-expression", allocator, tpls.if_expression, if_expr);
+
+    // projects-escaped
+    total += try bench("projects-escaped", allocator, tpls.projects_escaped, projects);
+
+    // search-results
+    total += try bench("search-results", allocator, tpls.search_results, search);
+
+    // friends
+    total += try bench("friends", allocator, tpls.friends, friends_data);
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Summary
+    // ─────────────────────────────────────────────────────────────────────────
+    std.debug.print("\n", .{});
+    std.debug.print("  {s:<20} => {d:>7.1}ms\n", .{ "TOTAL", total });
+    std.debug.print("\n", .{});
+}
+
+fn loadJson(comptime T: type, alloc: std.mem.Allocator, comptime filename: []const u8) !T {
+    const path = templates_dir ++ "/" ++ filename;
+    const content = try std.fs.cwd().readFileAlloc(alloc, path, 10 * 1024 * 1024);
+    const parsed = try std.json.parseFromSlice(T, alloc, content, .{});
+    return parsed.value;
+}
+
+fn bench(
+    name: []const u8,
+    allocator: std.mem.Allocator,
+    comptime render_fn: anytype,
+    data: anytype,
+) !f64 {
+    var arena = std.heap.ArenaAllocator.init(allocator);
+    defer arena.deinit();
+
+    var timer = try std.time.Timer.start();
+    for (0..iterations) |_| {
+        _ = arena.reset(.retain_capacity);
+        _ = try render_fn(arena.allocator(), data);
+    }
+    const ms = @as(f64, @floatFromInt(timer.read())) / 1_000_000.0;
+    std.debug.print("  {s:<20} => {d:>7.1}ms\n", .{ name, ms });
+    return ms;
+}