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C# Analyzer.BuildAst方法代码示例

本文整理汇总了C#中Analyzer.BuildAst方法的典型用法代码示例。如果您正苦于以下问题:C# Analyzer.BuildAst方法的具体用法?C# Analyzer.BuildAst怎么用?C# Analyzer.BuildAst使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Analyzer的用法示例。


在下文中一共展示了Analyzer.BuildAst方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Analyze

		/// <include file='Doc/Nodes.xml' path='doc/method[@name="Expression.Analyze"]/*'/>
		internal override Evaluation Analyze(Analyzer/*!*/ analyzer, ExInfoFromParent info)
		{
			access = info.Access;

			// assertion:
			if (kind == EvalKinds.Assert)
			{
				if (analyzer.Context.Config.Compiler.Debug)
				{
					Evaluation code_evaluation = code.Analyze(analyzer, ExInfoFromParent.DefaultExInfo);

					// string parameter is parsed and converted to an expression:
					if (code_evaluation.HasValue)
					{
						inlinedCode = Convert.ObjectToString(code_evaluation.Value);
						if (inlinedCode != "")
						{
							const string prefix = "return ";

							// position setup:
							Position pos = Position.Initial;

							// the position of the last character before the parsed string:
							pos.FirstLine = code.Position.FirstLine;
							pos.FirstOffset = code.Position.FirstOffset - prefix.Length + 1;
							pos.FirstColumn = code.Position.FirstColumn - prefix.Length + 1;

							List<Statement> statements = analyzer.BuildAst(pos, String.Concat(prefix, inlinedCode, ";"));

							// code is unevaluable:
							if (statements == null)
								return new Evaluation(this, true);

							if (statements.Count > 1)
								analyzer.ErrorSink.Add(Warnings.MultipleStatementsInAssertion, analyzer.SourceUnit, position);

							Debug.Assert(statements.Count > 0 && statements[0] is JumpStmt);

							this.code = ((JumpStmt)statements[0]).Expression;
						}
						else
						{
							// empty assertion:
							return new Evaluation(this, true);
						}
					}
					else
					{
						code = code_evaluation.Expression;
					}
				}
				else
				{
					// replace with "true" value in release mode:
					return new Evaluation(this, true);
				}
			}

			// it is not necessary to analyze an argument nor set the declaring function's contains-eval property
			// in the case of synthetic eval:
			if (kind != EvalKinds.SyntheticEval)
			{
				code = code.Analyze(analyzer, ExInfoFromParent.DefaultExInfo).Literalize();
				analyzer.AddCurrentRoutineProperty(RoutineProperties.ContainsEval);
			}

			return new Evaluation(this);
		}
开发者ID:Ashod,项目名称:Phalanger,代码行数:69,代码来源:BuiltInFunctions.cs


注:本文中的Analyzer.BuildAst方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。