IntSwitchInstruction.cs

Go to the documentation of this file.

using System.Collections.Generic;
 
namespace System.Linq.Expressions.Interpreter;
 
internal sealed class IntSwitchInstruction<T> : Instruction
{
    private readonly Dictionary<T, int> _cases;
 
    public override string InstructionName => "IntSwitch";
 
    public override int ConsumedStack => 1;
 
    internal IntSwitchInstruction(Dictionary<T, int> cases)
    {
        _cases = cases;
    }
 
    public override int Run(InterpretedFrame frame)
    {
        if (!_cases.TryGetValue((T)frame.Pop(), out var value))
        {
            return 1;
        }
        return value;
    }
}