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C# Symbol.ConstructedFrom方法代码示例

本文整理汇总了C#中Microsoft.CodeAnalysis.CSharp.Symbol.ConstructedFrom方法的典型用法代码示例。如果您正苦于以下问题:C# Symbol.ConstructedFrom方法的具体用法?C# Symbol.ConstructedFrom怎么用?C# Symbol.ConstructedFrom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Microsoft.CodeAnalysis.CSharp.Symbol的用法示例。


在下文中一共展示了Symbol.ConstructedFrom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: BindTypeParameterConstraintClauses

        /// <summary>
        /// Return a collection of bound constraint clauses indexed by type parameter
        /// ordinal. All constraint clauses are bound, even if there are multiple constraints
        /// for the same type parameter, or constraints for unrecognized type parameters.
        /// Extra constraints are not included in the returned collection however.
        /// </summary>
        internal ImmutableArray<TypeParameterConstraintClause> BindTypeParameterConstraintClauses(
            Symbol containingSymbol,
            ImmutableArray<TypeParameterSymbol> typeParameters,
            SyntaxList<TypeParameterConstraintClauseSyntax> clauses,
            DiagnosticBag diagnostics)
        {
            Debug.Assert(this.Flags.Includes(BinderFlags.GenericConstraintsClause));
            Debug.Assert((object)containingSymbol != null);
            Debug.Assert((containingSymbol.Kind == SymbolKind.NamedType) || (containingSymbol.Kind == SymbolKind.Method));
            Debug.Assert(typeParameters.Length > 0);
            Debug.Assert(clauses.Count > 0);

            int n = typeParameters.Length;

            // Create a map from type parameter name to ordinal.
            // No need to report duplicate names since duplicates
            // are reported when the type parameters are bound.
            var names = new Dictionary<string, int>(n);
            foreach (var typeParameter in typeParameters)
            {
                var name = typeParameter.Name;
                if (!names.ContainsKey(name))
                {
                    names.Add(name, names.Count);
                }
            }

            // An array of constraint clauses, one for each type parameter, indexed by ordinal.
            var results = new TypeParameterConstraintClause[n];

            // Bind each clause and add to the results.
            foreach (var clause in clauses)
            {
                var name = clause.Name.Identifier.ValueText;
                int ordinal;
                if (names.TryGetValue(name, out ordinal))
                {
                    Debug.Assert(ordinal >= 0);
                    Debug.Assert(ordinal < n);

                    var constraintClause = this.BindTypeParameterConstraints(name, clause.Constraints, diagnostics);
                    if (results[ordinal] == null)
                    {
                        results[ordinal] = constraintClause;
                    }
                    else
                    {
                        // "A constraint clause has already been specified for type parameter '{0}'. ..."
                        diagnostics.Add(ErrorCode.ERR_DuplicateConstraintClause, clause.Name.Location, name);
                    }
                }
                else
                {
                    // Unrecognized type parameter. Don't bother binding the constraints
                    // (the ": I<U>" in "where U : I<U>") since that will lead to additional
                    // errors ("type or namespace 'U' could not be found") if the type
                    // parameter is referenced in the constraints.

                    // "'{1}' does not define type parameter '{0}'"
                    diagnostics.Add(ErrorCode.ERR_TyVarNotFoundInConstraint, clause.Name.Location, name, containingSymbol.ConstructedFrom());
                }
            }

            return results.AsImmutableOrNull();
        }
开发者ID:modulexcite,项目名称:pattern-matching-csharp,代码行数:71,代码来源:Binder_Constraints.cs


注:本文中的Microsoft.CodeAnalysis.CSharp.Symbol.ConstructedFrom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。