zig/src-self-hosted/Package.zig

54 lines
1.5 KiB
Zig

pub const Table = std.StringHashMap(*Package);
root_src_dir: std.fs.Dir,
/// Relative to `root_src_dir`.
root_src_path: []const u8,
table: Table,
/// No references to `root_src_dir` and `root_src_path` are kept.
pub fn create(
allocator: *mem.Allocator,
base_dir: std.fs.Dir,
/// Relative to `base_dir`.
root_src_dir: []const u8,
/// Relative to `root_src_dir`.
root_src_path: []const u8,
) !*Package {
const ptr = try allocator.create(Package);
errdefer allocator.destroy(ptr);
const root_src_path_dupe = try mem.dupe(allocator, u8, root_src_path);
errdefer allocator.free(root_src_path_dupe);
ptr.* = .{
.root_src_dir = try base_dir.openDir(root_src_dir, .{}),
.root_src_path = root_src_path_dupe,
.table = Table.init(allocator),
};
return ptr;
}
pub fn destroy(self: *Package) void {
const allocator = self.table.allocator;
self.root_src_dir.close();
allocator.free(self.root_src_path);
{
var it = self.table.iterator();
while (it.next()) |kv| {
allocator.free(kv.key);
}
}
self.table.deinit();
allocator.destroy(self);
}
pub fn add(self: *Package, name: []const u8, package: *Package) !void {
const name_dupe = try mem.dupe(self.table.allocator, u8, name);
errdefer self.table.allocator.deinit(name_dupe);
const entry = try self.table.put(name_dupe, package);
assert(entry == null);
}
const std = @import("std");
const mem = std.mem;
const assert = std.debug.assert;
const Package = @This();