/// <summary>
/// Like <see cref="TryEvaluateAndDescribeAsync(IRExpressionEvaluator, string, string, string, REvaluationResultProperties, string, CancellationToken)"/>,
/// but evaluates in the global environment (<c>.GlobalEnv</c>), and the result is not named.
/// </summary>
public static Task <IREvaluationResultInfo> TryEvaluateAndDescribeAsync(
this IRExpressionEvaluator session,
string expression,
REvaluationResultProperties properties,
string repr,
CancellationToken cancellationToken = default(CancellationToken)
) =>
session.TryEvaluateAndDescribeAsync(REnvironments.GlobalEnv, expression, null, properties, repr, cancellationToken);
/// <summary>
/// Like <see cref="TryEvaluateAndDescribeAsync(IRSession, string, string, string, REvaluationResultProperties, string, CancellationToken)"/>,
/// but throws <see cref="RException"/> if result is an <see cref="IRErrorInfo"/>.
/// </summary>
public static async Task <IRValueInfo> EvaluateAndDescribeAsync(
this IRExpressionEvaluator session,
string environmentExpression,
string expression,
string name,
REvaluationResultProperties properties,
string repr,
CancellationToken cancellationToken = default(CancellationToken)
)
{
var info = await session.TryEvaluateAndDescribeAsync(environmentExpression, expression, name, properties, repr, cancellationToken);
var error = info as IRErrorInfo;
if (error != null)
{
throw new RException(error.ErrorText);
}
Debug.Assert(info is IRValueInfo);
return((IRValueInfo)info);
}
