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C# Binder.CreateReturnConversion方法代码示例

本文整理汇总了C#中Binder.CreateReturnConversion方法的典型用法代码示例。如果您正苦于以下问题:C# Binder.CreateReturnConversion方法的具体用法?C# Binder.CreateReturnConversion怎么用?C# Binder.CreateReturnConversion使用的例子?那么恭喜您, 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Binder的用法示例。


在下文中一共展示了Binder.CreateReturnConversion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: BindExpression

        private static BoundStatement BindExpression(Binder binder, ExpressionSyntax syntax, DiagnosticBag diagnostics, out ResultProperties resultProperties)
        {
            var flags = DkmClrCompilationResultFlags.None;

            // In addition to C# expressions, the native EE also supports
            // type names which are bound to a representation of the type
            // (but not System.Type) that the user can expand to see the
            // base type. Instead, we only allow valid C# expressions.
            var expression = binder.BindValue(syntax, diagnostics, Binder.BindValueKind.RValue);
            if (diagnostics.HasAnyErrors())
            {
                resultProperties = default(ResultProperties);
                return null;
            }

            try
            {
                if (MayHaveSideEffectsVisitor.MayHaveSideEffects(expression))
                {
                    flags |= DkmClrCompilationResultFlags.PotentialSideEffect;
                }
            }
            catch (BoundTreeVisitor.CancelledByStackGuardException ex)
            {
                ex.AddAnError(diagnostics);
                resultProperties = default(ResultProperties);
                return null;
            }

            var expressionType = expression.Type;
            if ((object)expressionType == null)
            {
                expression = binder.CreateReturnConversion(
                    syntax,
                    diagnostics,
                    expression,
                    binder.Compilation.GetSpecialType(SpecialType.System_Object));
                if (diagnostics.HasAnyErrors())
                {
                    resultProperties = default(ResultProperties);
                    return null;
                }
            }
            else if (expressionType.SpecialType == SpecialType.System_Void)
            {
                flags |= DkmClrCompilationResultFlags.ReadOnlyResult;
                Debug.Assert(expression.ConstantValue == null);
                resultProperties = expression.ExpressionSymbol.GetResultProperties(flags, isConstant: false);
                return new BoundExpressionStatement(syntax, expression) { WasCompilerGenerated = true };
            }
            else if (expressionType.SpecialType == SpecialType.System_Boolean)
            {
                flags |= DkmClrCompilationResultFlags.BoolResult;
            }

            if (!IsAssignableExpression(binder, expression))
            {
                flags |= DkmClrCompilationResultFlags.ReadOnlyResult;
            }

            resultProperties = expression.ExpressionSymbol.GetResultProperties(flags, expression.ConstantValue != null);
            return new BoundReturnStatement(syntax, expression) { WasCompilerGenerated = true };
        }
开发者ID:rgani,项目名称:roslyn,代码行数:63,代码来源:CompilationContext.cs


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