private static Possible <INugetPackage> ParseNugetPackageFrom(
[CanBeNull] IObjectLiteralExpression packageExpression)
{
if (packageExpression == null)
{
return(new MalformedConfigurationFailure("An object literal with a NuGet package definition is expected"));
}
string id;
packageExpression.TryExtractLiteralFromAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.IdFieldName, out id);
string version;
packageExpression.TryExtractLiteralFromAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.VersionFieldName, out version);
string alias;
packageExpression.TryExtractLiteralFromAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.AliasFieldName, out alias);
return(new NugetPackage
{
Id = id,
Alias = alias,
Version = version,
});
}
/// <summary>
/// Do a naive interpretation of an object literal to get NuGet resolver settings
/// </summary>
public Possible <IResolverSettings> TryGetResolverSettings(
IObjectLiteralExpression resolverConfigurationLiteral)
{
Contract.Requires(resolverConfigurationLiteral != null);
var result = new NugetResolverSettings {
Kind = KnownResolverKind.NugetResolverKind, Name = "Nuget resolver for a naive configuration provider"
};
return
// Parse 'configuration' field
(ParseConfigurationField(resolverConfigurationLiteral).Then(nugetConfiguration =>
{
result.Configuration = nugetConfiguration;
// Parse 'respositories' field if it exists
return ParseRepositoriesField(resolverConfigurationLiteral, result.Repositories).Then(repositories =>
// Parse 'packages' field if it exists
ParsePackagesField(resolverConfigurationLiteral, result.Packages).Then(packages =>
// Parse 'doNotEnforceDependencyVersions' field if it exists
ParseDoNotEnforceDependencyVersionsField(resolverConfigurationLiteral).Then(doNotEnforceDependencyVersions =>
{
if (doNotEnforceDependencyVersions.HasValue)
{
result.DoNotEnforceDependencyVersions = doNotEnforceDependencyVersions.Value;
}
// The NugetResolverSettings have now been completely parsed
return new Possible <IResolverSettings>(result);
})));
}));
}
// Parse 'packages' field if it exists
private static Possible <List <INugetPackage> > ParsePackagesField(IObjectLiteralExpression resolverConfigurationLiteral, List <INugetPackage> packages)
{
IExpression expression;
if (resolverConfigurationLiteral.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.PackagesFieldName, out expression))
{
if (expression.Kind != SyntaxKind.ArrayLiteralExpression)
{
return(new MalformedConfigurationFailure(
I($"An array literal is expected for field '{NaiveConfigurationParsingUtilities.PackagesFieldName}', but it is of type {expression.Kind}")));
}
var packagesExpression = expression.Cast <IArrayLiteralExpression>();
foreach (var packageExpression in packagesExpression.Elements)
{
var maybePackage = ParseNugetPackageFrom(packageExpression.As <IObjectLiteralExpression>());
if (!maybePackage.Succeeded)
{
return(maybePackage.Failure);
}
packages.Add(maybePackage.Result);
}
}
return(packages);
}
/// <summary>
/// Validates <paramref name="sourceFile"/> to follow package configuration structure.
/// </summary>
public static bool ValidatePackageConfiguration(ISourceFile sourceFile, Logger logger, LoggingContext loggingContext)
{
if (sourceFile.Statements.Count < 1)
{
logger.ReportAtLeastSingleFunctionCallInPackageConfigurationFile(loggingContext, sourceFile.LocationForLogging(sourceFile));
return(false);
}
var objectLiteralExpressions = new IObjectLiteralExpression[sourceFile.Statements.Count];
bool hasErrors = false;
for (int i = 0; i < sourceFile.Statements.Count; ++i)
{
var configurationStatement = sourceFile.Statements[i];
if (!configurationStatement.IsPackageConfigurationDeclaration())
{
logger.ReportUnknownStatementInPackageConfigurationFile(
loggingContext,
configurationStatement.LocationForLogging(sourceFile));
hasErrors = true;
continue;
}
var callExpression = configurationStatement.AsCallExpression();
if (callExpression.Arguments.Count != 1)
{
string message = I($"Package configuration should take 1 argument but got {callExpression.Arguments.Count}");
logger.ReportInvalidPackageConfigurationFileFormat(
loggingContext,
callExpression.LocationForLogging(sourceFile),
message);
hasErrors = true;
continue;
}
var objectLiteral = callExpression.Arguments[0].As <IObjectLiteralExpression>();
if (objectLiteral == null)
{
string message = I($"Package configuration should take object literal but got {callExpression.Arguments[0].Kind}");
logger.ReportInvalidPackageConfigurationFileFormat(
loggingContext,
callExpression.LocationForLogging(sourceFile),
message);
hasErrors = true;
continue;
}
objectLiteralExpressions[i] = objectLiteral;
}
return(hasErrors);
}
// Parse 'configuration' field
private Possible <INugetConfiguration> ParseConfigurationField(IObjectLiteralExpression resolverConfigurationLiteral)
{
IExpression expression;
if (!resolverConfigurationLiteral.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.ConfigurationFieldName, out expression))
{
return
(new MalformedConfigurationFailure(
I($"Field '{NaiveConfigurationParsingUtilities.ConfigurationFieldName}' is not present.")));
}
return(ParseNugetConfigurationFrom(expression.As <IObjectLiteralExpression>()));
}
/// <summary>
/// Return the literal initializer for a given property name in an object literal
/// </summary>
public static bool TryExtractLiteralFromAssignmentPropertyInitializer(
this IObjectLiteralExpression objectLiteral,
string propertyName,
out string literal)
{
IExpression expression;
if (TryFindAssignmentPropertyInitializer(objectLiteral, propertyName, out expression))
{
literal = expression.As <ILiteralExpression>()?.Text;
return(literal != null);
}
literal = null;
return(false);
}
/// <summary>
/// Gets any properties that haven't yet been filled in for an object literal
/// </summary>
public static IEnumerable<ISymbol> GetRemainingPropertiesForObjectLiteral(IObjectLiteralExpression objectLiteralExpression, IEnumerable<IType> types, ITypeChecker typeChecker)
{
if (objectLiteralExpression?.Properties?.Elements == null)
{
return Enumerable.Empty<ISymbol>();
}
var propertiesThatAlreadyAreSet = new HashSet<string>(
objectLiteralExpression.Properties.Elements
.Select(property => property.As<IPropertyAssignment>()?.Name?.Text)
.Where(name => name != null));
var allPossibleSymbols = AutoCompleteHelpers.GetSymbolsFromTypes(typeChecker, types);
Contract.Assert(allPossibleSymbols != null);
return allPossibleSymbols.Where(symbol => !propertiesThatAlreadyAreSet.Contains(symbol.Name));
}
private static int FitsOnOneLine(IObjectLiteralExpression expression, int remainingSpace)
{
if (expression.Properties == null)
{
return(remainingSpace - 2);
}
if (expression.Properties.Length > 2)
{
// Objects of more than 3 members get their own line
return(-1);
}
int space = remainingSpace;
foreach (var objectElement in expression.Properties)
{
if (objectElement.Kind != SyntaxKind.PropertyAssignment)
{
// Only properties would fit on one line
return(-1);
}
if (space != remainingSpace)
{
space -= 2; // Separator
}
var property = objectElement as IPropertyAssignment;
if (property == null)
{
// anything but a property will cause wrapping.
return(-1);
}
space -= property.Name.Text.Length;
space -= 2; // separator
space = FitsOnOneLine(property.Initializer, space);
}
space -= 2; // brackets
return(space);
}
private Possible <INugetConfiguration> ParseNugetConfigurationFrom(
[CanBeNull] IObjectLiteralExpression configurationExpression)
{
IExpression expression;
if (configurationExpression == null)
{
return(new MalformedConfigurationFailure("An object literal with NuGet resolver-specific configuration is expected"));
}
var result = new NugetConfiguration();
if (configurationExpression.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.CredentialProvidersFieldName, out expression))
{
if (expression.Kind != SyntaxKind.ArrayLiteralExpression)
{
return(new MalformedConfigurationFailure("An array literal is expected for NuGet credential providers"));
}
var credentialProviders = expression.Cast <IArrayLiteralExpression>();
foreach (var element in credentialProviders.Elements)
{
var elementResult = ParseNugetConfigurationFrom(element.As <IObjectLiteralExpression>());
if (!elementResult.Succeeded)
{
return(elementResult);
}
result.CredentialProviders.Add(elementResult.Result);
}
}
if (configurationExpression.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.ToolUrlFieldName, out expression))
{
// TODO: Consider validating that string is well-formed URL
result.ToolUrl = expression.As <ILiteralExpression>()?.Text;
}
if (configurationExpression.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.HashFieldName, out expression))
{
result.Hash = expression.As <ILiteralExpression>()?.Text;
}
return(result);
}
private static int CompareObjectLiteralExpression(IObjectLiteralExpression left, IObjectLiteralExpression right)
{
// Standard left,right and null checks
if (left == null && right == null)
{
return(0);
}
if (left == null)
{
return(1);
}
if (right == null)
{
return(-1);
}
return(CompareNodeArrays(left.Properties, right.Properties, (l, r) => CompareNodeAsText(l, r)));
}
/// <summary>
/// Extracts an object literal that was specified in a configuration function.
/// </summary>
public static bool TryExtractConfigurationLiteral(
this ISourceFile sourceFile,
out IObjectLiteralExpression literal, out string failureReason)
{
List <IObjectLiteralExpression> literals;
if (!sourceFile.TryExtractLiterals(
functionName: Names.ConfigurationFunctionCall,
allowMultipleLiterals: false,
literals: out literals,
failureReason: out failureReason))
{
literal = null;
return(false);
}
literal = literals.First();
return(true);
}
/// <summary>
/// Return the expression initializer for a given property name in an object literal
/// </summary>
public static bool TryFindAssignmentPropertyInitializer(
this IObjectLiteralExpression objectLiteral,
string propertyName,
out IExpression expression)
{
foreach (var property in objectLiteral.Properties)
{
if (string.Equals(property.Name.Text, propertyName))
{
var expressionAssignment = property.As <IPropertyAssignment>()?.Initializer;
if (expressionAssignment != null)
{
expression = expressionAssignment;
return(true);
}
}
}
expression = null;
return(false);
}
// Parse 'doNotEnforceDependencyVersions' field if it exists
private static Possible <bool?> ParseDoNotEnforceDependencyVersionsField(IObjectLiteralExpression resolverConfigurationLiteral)
{
IExpression expression;
if (resolverConfigurationLiteral.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.DoNotEnforceDependencyVersionsFieldName, out expression))
{
switch (expression.Kind)
{
case SyntaxKind.TrueKeyword:
return(true);
case SyntaxKind.FalseKeyword:
return(false);
default:
return(new MalformedConfigurationFailure(
I($"Field '{NaiveConfigurationParsingUtilities.DoNotEnforceDependencyVersionsFieldName}' is supposed to be a boolean literal, but is of type {expression.Kind}.")));
}
}
return((bool?)null);
}
// Parse 'respositories' field if it exists
private static Possible <Dictionary <string, string> > ParseRepositoriesField(IObjectLiteralExpression resolverConfigurationLiteral, Dictionary <string, string> repositories)
{
Contract.Assert(repositories != null);
IExpression expression;
if (resolverConfigurationLiteral.TryFindAssignmentPropertyInitializer(NaiveConfigurationParsingUtilities.RepositoriesFieldName, out expression))
{
var repositoriesExpression = expression.As <IObjectLiteralExpression>();
if (repositoriesExpression == null)
{
return(new MalformedConfigurationFailure("An object literal with NuGet respositories definitions is expected"));
}
foreach (var property in repositoriesExpression.Properties)
{
if (property.Kind != SyntaxKind.PropertyAssignment)
{
return(new MalformedConfigurationFailure(
I($"Field '{NaiveConfigurationParsingUtilities.RepositoriesFieldName}' is supposed to contain property assignments only but property '{property.Name.Text}' is of type {property.Kind}.")));
}
var propertyInitializer = property.Cast <IPropertyAssignment>().Initializer;
if (propertyInitializer.Kind != SyntaxKind.StringLiteral)
{
return(new MalformedConfigurationFailure(
I($"Field '{NaiveConfigurationParsingUtilities.RepositoriesFieldName}' is supposed to contain string literal property assignments only, but property '{property.Name.Text}' has initializer of type '{propertyInitializer.Kind}'.")));
}
repositories.Add(
property.Name.Text,
propertyInitializer.Cast <IStringLiteral>().Text);
}
}
return(repositories);
}
private static QualifierSpaceDeclaration ExtractQualifierSpace(IObjectLiteralExpression objectLiteral, DiagnosticContext context, bool emitLogEvents)
{
QualifierSpaceDeclaration result = new QualifierSpaceDeclaration();
bool hasErrors = false;
foreach (var objectLiteralElement in objectLiteral.Properties)
{
switch (objectLiteralElement.Kind)
{
case TypeScript.Net.Types.SyntaxKind.PropertyAssignment:
{
var propertyAssignment = objectLiteralElement.Cast <IPropertyAssignment>();
var initializer = propertyAssignment.Initializer;
var valueSpace = initializer.As <IArrayLiteralExpression>();
if (valueSpace == null || valueSpace.Elements.Count == 0)
{
if (emitLogEvents)
{
context.Logger.ReportQualifierSpacePossibleValuesMustBeNonEmptyArrayLiteral(
context.LoggingContext,
initializer.LocationForLogging(context.SourceFile));
}
hasErrors = true;
}
else
{
var values = ExtractQualifierSpaceValues(valueSpace, context, emitLogEvents);
if (values == null)
{
hasErrors = true;
}
else
{
var text = propertyAssignment.Name.Text;
if (!QualifierTable.IsValidQualifierKey(text))
{
if (emitLogEvents)
{
context.Logger.ReportQualifierSpaceValueMustBeValidKey(context.LoggingContext, propertyAssignment.LocationForLogging(context.SourceFile), text);
}
hasErrors = true;
}
else
{
result.Add(propertyAssignment.Name.Text, values);
}
}
}
break;
}
case TypeScript.Net.Types.SyntaxKind.ShorthandPropertyAssignment:
{
if (emitLogEvents)
{
context.Logger.ReportQualifierSpacePropertyCannotBeInShorthand(
context.LoggingContext,
objectLiteralElement.LocationForLogging(context.SourceFile));
}
hasErrors = true;
break;
}
}
}
return(hasErrors ? null : result);
}
