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#region Copyright
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#endregion
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using System;
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using Seasar.Framework.Util;
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namespace Seasar.Framework.Container.Assembler
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{
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public sealed class ExpressionConstructorAssembler : AbstractConstructorAssembler
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{
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public ExpressionConstructorAssembler(IComponentDef componentDef)
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: base(componentDef)
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{
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}
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public override object Assemble()
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{
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IComponentDef cd = this.ComponentDef;
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IS2Container container = cd.Container;
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string expression = cd.Expression;
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Type componentType = cd.ComponentType;
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object component = JScriptUtil.Evaluate(expression,container);
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if(componentType != null)
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{
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if(component is DBNull ||
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!componentType.IsAssignableFrom(component.GetType()))
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{
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throw new TypeUnmatchRuntimeException(componentType,
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component != null ? component.GetType() : null);
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}
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}
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return component;
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}
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}
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}
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