srctree

Ryan Liptak parent 68b87918 abd250bb
Use stack fallback allocator to usually avoid extra heap allocation in getEnvVarOwned

inlinesplit
lib/std/process.zig added: 5, removed: 3, total 2
@@ -393,8 +393,10 @@ pub const GetEnvVarOwnedError = error{
pub fn getEnvVarOwned(allocator: Allocator, key: []const u8) GetEnvVarOwnedError![]u8 {
if (builtin.os.tag == .windows) {
const result_w = blk: {
const key_w = try std.unicode.wtf8ToWtf16LeAllocZ(allocator, key);
defer allocator.free(key_w);
var stack_alloc = std.heap.stackFallback(256 * @sizeOf(u16), allocator);
const stack_allocator = stack_alloc.get();
const key_w = try std.unicode.wtf8ToWtf16LeAllocZ(stack_allocator, key);
defer stack_allocator.free(key_w);
 
break :blk std.os.getenvW(key_w) orelse return error.EnvironmentVariableNotFound;
};