Joseph Doherty
52 lines
2.4 KiB
C#
52 lines
2.4 KiB
C#
namespace ZB.MOM.WW.ScadaBridge.ScriptAnalysis;
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/// <summary>
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/// M3.1: a <b>compile-only</b> mirror of the SiteRuntime
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/// <c>TriggerExpressionGlobals</c> bind surface. A trigger expression is a bare
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/// boolean expression referencing <c>Attributes["x"]</c> / <c>Children["c"]</c>
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/// / <c>Parent</c>; the design-time deploy gate (M3.5) compiles candidate
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/// trigger expressions against this type to catch undefined symbols.
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///
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/// <para>
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/// Only the read-only bind surface is reproduced — the runtime
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/// <c>ExtractExpression</c> helper and the snapshot-backed constructor are
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/// intentionally omitted; they are runtime concerns, not part of what an
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/// expression binds against. Member bodies are compile-only and throw
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/// <see cref="NotSupportedException"/>.
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/// </para>
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/// </summary>
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public sealed class TriggerCompileSurface
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{
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private const string CompileOnly = "compile-only surface";
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/// <summary>Mirrors <c>TriggerExpressionGlobals.Attributes</c>.</summary>
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public ReadOnlyAttributes Attributes => throw new NotSupportedException(CompileOnly);
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/// <summary>Mirrors <c>TriggerExpressionGlobals.Children</c>.</summary>
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public ReadOnlyChildren Children => throw new NotSupportedException(CompileOnly);
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/// <summary>Mirrors <c>TriggerExpressionGlobals.Parent</c>.</summary>
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public ReadOnlyComposition? Parent => throw new NotSupportedException(CompileOnly);
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/// <summary>Compile-only mirror of <c>TriggerExpressionGlobals.ReadOnlyAttributes</c>.</summary>
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public sealed class ReadOnlyAttributes
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{
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/// <summary>Mirrors <c>ReadOnlyAttributes.this[string]</c>.</summary>
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public object? this[string key] => throw new NotSupportedException(CompileOnly);
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}
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/// <summary>Compile-only mirror of <c>TriggerExpressionGlobals.ReadOnlyComposition</c>.</summary>
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public sealed class ReadOnlyComposition
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{
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/// <summary>Mirrors <c>ReadOnlyComposition.Attributes</c>.</summary>
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public ReadOnlyAttributes Attributes => throw new NotSupportedException(CompileOnly);
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}
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/// <summary>Compile-only mirror of <c>TriggerExpressionGlobals.ReadOnlyChildren</c>.</summary>
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public sealed class ReadOnlyChildren
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{
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/// <summary>Mirrors <c>ReadOnlyChildren.this[string]</c>.</summary>
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public ReadOnlyComposition this[string compositionName] => throw new NotSupportedException(CompileOnly);
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}
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}
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