const std = @import("std");

const Allocator = std.mem.Allocator;

// NOTE: right now, only numbers.
pub const Value = f64;

pub fn printValue(stdout: var, value: Value) !void {
    try stdout.print("{}", value);
}

pub const ValueList = struct {
    count: usize,
    values: []Value,
    allocator: *Allocator,

    pub fn init(allocator: *Allocator) !ValueList {
        return ValueList{
            .count = 0,
            .allocator = allocator,
            .values = try allocator.alloc(Value, 0),
        };
    }

    pub fn write(self: *ValueList, value: Value) !void {
        if (self.values.len < self.count + 1) {
            self.values = try self.allocator.realloc(
                self.values,
                self.count + 1,
            );
        }

        self.values[self.count] = value;
        self.count += 1;
    }
};