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fcbb7426fa
See #770 To help automatically translate code, see the zig-fmt-pointer-reform-2 branch. This will convert all & into *. Due to the syntax ambiguity (which is why we are making this change), even address-of & will turn into *, so you'll have to manually fix thes instances. You will be guaranteed to get compile errors for them - expected 'type', found 'foo'
39 lines
1.3 KiB
Zig
39 lines
1.3 KiB
Zig
const std = @import("std");
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const mem = std.mem;
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const warn = std.debug.warn;
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const Tokenizer = std.zig.Tokenizer;
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const Parser = std.zig.Parser;
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const io = std.io;
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const source = @embedFile("../os/index.zig");
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var fixed_buffer_mem: [10 * 1024 * 1024]u8 = undefined;
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pub fn main() !void {
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var i: usize = 0;
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var timer = try std.os.time.Timer.start();
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const start = timer.lap();
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const iterations = 100;
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var memory_used: usize = 0;
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while (i < iterations) : (i += 1) {
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memory_used += testOnce();
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}
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const end = timer.read();
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memory_used /= iterations;
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const elapsed_s = f64(end - start) / std.os.time.ns_per_s;
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const bytes_per_sec = f64(source.len * iterations) / elapsed_s;
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const mb_per_sec = bytes_per_sec / (1024 * 1024);
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var stdout_file = try std.io.getStdOut();
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const stdout = *std.io.FileOutStream.init(*stdout_file).stream;
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try stdout.print("{.3} MB/s, {} KB used \n", mb_per_sec, memory_used / 1024);
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}
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fn testOnce() usize {
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var fixed_buf_alloc = std.heap.FixedBufferAllocator.init(fixed_buffer_mem[0..]);
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var allocator = *fixed_buf_alloc.allocator;
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var tokenizer = Tokenizer.init(source);
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var parser = Parser.init(*tokenizer, allocator, "(memory buffer)");
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_ = parser.parse() catch @panic("parse failure");
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return fixed_buf_alloc.end_index;
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}
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