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Impose correctness on LazyKeyValuePair

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This commit is contained in:
Greg Edwards
2015-04-13 20:15:19 -04:00
parent 6ea19739fe
commit 94f3a46f67
1 changed files with 16 additions and 0 deletions
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16
library/Support/LazyKeyValuePair.cs
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@@ -28,6 +28,7 @@ namespace PkmnFoundations.Support
set
{
m_key = value;
m_has_key = true;
m_has_value = false;
}
}
@@ -45,29 +46,44 @@ namespace PkmnFoundations.Support
set
{
m_value = value;
m_has_value = true;
m_has_key = false;
}
}
public void EvaluateKey()
{
#if DEBUG
AssertHelper.Assert(m_has_key || m_has_value);
#endif
if (!m_has_key) m_key = m_key_evaluator(m_value);
m_has_key = true;
}
public void Evaluate()
{
#if DEBUG
AssertHelper.Assert(m_has_key || m_has_value);
#endif
if (!m_has_value) m_value = m_evaluator(m_key);
m_has_value = true;
}
/// <summary>
/// Causes the Key to be lost so it will be recomputed from the Value.
/// </summary>
public void InvalidateKey()
{
if (!m_has_value) throw new InvalidOperationException();
m_has_key = false;
}
/// <summary>
/// Causes the Value to be lost so it will be recomputed from the Key.
/// </summary>
public void Invalidate()
{
if (!m_has_key) throw new InvalidOperationException();
m_has_value = false;
}
}