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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Public Function

nextAllocMax

Public Function
std.json.Scanner.nextAllocMax
pub fn nextAllocMax(self: *@This(), allocator: Allocator, when: AllocWhen, max_value_len: usize) AllocError!Token

This function is only available after endInput() (or initCompleteInput()) has been called. See also std.json.Token for documentation of nextAlloc*() function behavior.

Params

File

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pub fn nextAllocMax(self: *@This(), allocator: Allocator, when: AllocWhen, max_value_len: usize) AllocError!Token {
    assert(self.is_end_of_input); // This function is not available in streaming mode.
    const token_type = self.peekNextTokenType() catch |e| switch (e) {
        error.BufferUnderrun => unreachable,
        else => |err| return err,
    };
    switch (token_type) {
        .number, .string => {
            var value_list = std.array_list.Managed(u8).init(allocator);
            errdefer {
                value_list.deinit();
            }
            if (self.allocNextIntoArrayListMax(&value_list, when, max_value_len) catch |e| switch (e) {
                error.BufferUnderrun => unreachable,
                else => |err| return err,
            }) |slice| {
                return if (token_type == .number)
                    Token{ .number = slice }
                else
                    Token{ .string = slice };
            } else {
                return if (token_type == .number)
                    Token{ .allocated_number = try value_list.toOwnedSlice() }
                else
                    Token{ .allocated_string = try value_list.toOwnedSlice() };
            }
        },

        // Simple tokens never alloc.
        .object_begin,
        .object_end,
        .array_begin,
        .array_end,
        .true,
        .false,
        .null,
        .end_of_document,
        => return self.next() catch |e| switch (e) {
            error.BufferUnderrun => unreachable,
            else => |err| return err,
        },
    }
}