private static StatementSyntax HandleSyntaxInTransformResults(TransformFunctionProcessor processor, ExpressionSyntax expression)
{
var rewrittenExpression = (CSharpSyntaxNode)processor.Visit(expression);
var indexingFunction = SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(SyntaxFactory.Identifier("results")), rewrittenExpression);
return(RoslynHelper
.This(nameof(TransformerBase.TransformResults))
.Assign(indexingFunction)
.AsExpressionStatement());
}
private static List <StatementSyntax> HandleSyntaxInMap(FieldNamesValidator fieldValidator, MapFunctionProcessor mapRewriter, ExpressionSyntax expression,
ref SyntaxList <MemberDeclarationSyntax> members)
{
var rewrittenExpression = (CSharpSyntaxNode)mapRewriter.Visit(expression);
var optimized = new RavenLinqOptimizer(fieldValidator).Visit(new RavenLinqPrettifier().Visit(rewrittenExpression))
as StatementSyntax;
var collectionName = string.IsNullOrWhiteSpace(mapRewriter.CollectionName) ? Constants.Documents.Collections.AllDocumentsCollection : mapRewriter.CollectionName;
var collection = SyntaxFactory.LiteralExpression(SyntaxKind.StringLiteralExpression, SyntaxFactory.Literal(collectionName));
var results = new List <StatementSyntax>();
if (optimized != null)
{
var method = SyntaxFactory.MethodDeclaration(SyntaxFactory.IdentifierName("IEnumerable"), SyntaxFactory.Identifier("Map_" + members.Count))
.WithParameterList(
SyntaxFactory.ParameterList(SyntaxFactory.SingletonSeparatedList(
SyntaxFactory.Parameter(SyntaxFactory.Identifier("docs"))
.WithType(
SyntaxFactory.GenericName("IEnumerable")
.WithTypeArgumentList(
SyntaxFactory.TypeArgumentList(
SyntaxFactory.SingletonSeparatedList <TypeSyntax>(SyntaxFactory.IdentifierName("dynamic"))
)
)
)
))
)
.WithBody(SyntaxFactory.Block().AddStatements(optimized));
members = members.Add(method);
results.Add(RoslynHelper.This(nameof(StaticIndexBase.AddMap)).Invoke(collection, RoslynHelper.This(method.Identifier.Text)).AsExpressionStatement()); // this.AddMap("Users", docs => from doc in docs ... )
}
else
{
var indexingFunction = SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(SyntaxFactory.Identifier("docs")), rewrittenExpression);
results.Add(RoslynHelper.This(nameof(StaticIndexBase.AddMap)).Invoke(collection, indexingFunction).AsExpressionStatement()); // this.AddMap("Users", docs => from doc in docs ... )
}
if (mapRewriter.ReferencedCollections != null)
{
foreach (var referencedCollection in mapRewriter.ReferencedCollections)
{
var rc = SyntaxFactory.LiteralExpression(SyntaxKind.StringLiteralExpression, SyntaxFactory.Literal(referencedCollection));
results.Add(RoslynHelper.This(nameof(StaticIndexBase.AddReferencedCollection)).Invoke(collection, rc).AsExpressionStatement());
}
}
return(results);
}
private static StatementSyntax HandleSyntaxInReduce(ReduceFunctionProcessor reduceFunctionProcessor, ExpressionSyntax expression, out string[] groupByFields)
{
var rewrittenExpression = (CSharpSyntaxNode)reduceFunctionProcessor.Visit(expression);
var reducingFunction =
SyntaxFactory.SimpleLambdaExpression(
SyntaxFactory.Parameter(SyntaxFactory.Identifier(ResultsVariableNameRewriter.ResultsVariable)),
rewrittenExpression);
groupByFields = reduceFunctionProcessor.GroupByFields;
return(RoslynHelper.This(nameof(StaticIndexBase.Reduce)).Assign(reducingFunction).AsExpressionStatement());
}
private static MemberDeclarationSyntax CreateClass(string name, IndexDefinition definition)
{
var statements = new List <StatementSyntax>();
var maps = definition.Maps.ToList();
var fieldNamesValidator = new FieldNamesValidator();
var methodDetector = new MethodDetectorRewriter();
var members = new SyntaxList <MemberDeclarationSyntax>();
for (var i = 0; i < maps.Count; i++)
{
var map = maps[i];
statements.AddRange(HandleMap(map, fieldNamesValidator, methodDetector, ref members));
}
if (string.IsNullOrWhiteSpace(definition.Reduce) == false)
{
statements.Add(HandleReduce(definition.Reduce, fieldNamesValidator, methodDetector, out string[] groupByFields));
var groupByFieldsArray = GetArrayCreationExpression(groupByFields);
statements.Add(RoslynHelper.This(nameof(StaticIndexBase.GroupByFields)).Assign(groupByFieldsArray).AsExpressionStatement());
}
var fields = GetIndexedFields(definition, fieldNamesValidator);
var outputFieldsArray = GetArrayCreationExpression(fields);
statements.Add(RoslynHelper.This(nameof(StaticIndexBase.OutputFields)).Assign(outputFieldsArray).AsExpressionStatement());
var methods = methodDetector.Methods;
if (methods.HasCreateField)
{
statements.Add(RoslynHelper.This(nameof(StaticIndexBase.HasDynamicFields)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
if (methods.HasBoost)
{
statements.Add(RoslynHelper.This(nameof(StaticIndexBase.HasBoostedFields)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
var ctor = RoslynHelper.PublicCtor(name)
.AddBodyStatements(statements.ToArray());
return(RoslynHelper.PublicClass(name)
.WithBaseClass <StaticIndexBase>()
.WithMembers(members.Add(ctor)));
}
private static List <StatementSyntax> HandleSyntaxInMap(MapFunctionProcessor mapRewriter, ExpressionSyntax expression)
{
var rewrittenExpression = (CSharpSyntaxNode)mapRewriter.Visit(expression);
var collectionName = string.IsNullOrWhiteSpace(mapRewriter.CollectionName) ? Constants.Indexing.AllDocumentsCollection : mapRewriter.CollectionName;
var collection = SyntaxFactory.LiteralExpression(SyntaxKind.StringLiteralExpression, SyntaxFactory.Literal(collectionName));
var indexingFunction = SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(SyntaxFactory.Identifier("docs")), rewrittenExpression);
var results = new List <StatementSyntax>();
results.Add(RoslynHelper.This(nameof(StaticIndexBase.AddMap)).Invoke(collection, indexingFunction).AsExpressionStatement()); // this.AddMap("Users", docs => from doc in docs ... )
if (mapRewriter.ReferencedCollections != null)
{
foreach (var referencedCollection in mapRewriter.ReferencedCollections)
{
var rc = SyntaxFactory.LiteralExpression(SyntaxKind.StringLiteralExpression, SyntaxFactory.Literal(referencedCollection));
results.Add(RoslynHelper.This(nameof(StaticIndexBase.AddReferencedCollection)).Invoke(collection, rc).AsExpressionStatement());
}
}
return(results);
}
private static MemberDeclarationSyntax CreateClass(string name, TransformerDefinition definition)
{
var statements = new List <StatementSyntax>();
var methodDetector = new MethodDetectorRewriter();
statements.Add(HandleTransformResults(definition.TransformResults, methodDetector));
var methods = methodDetector.Methods;
if (methods.HasGroupBy)
{
statements.Add(RoslynHelper.This(nameof(TransformerBase.HasGroupBy)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
if (methods.HasLoadDocument)
{
statements.Add(RoslynHelper.This(nameof(TransformerBase.HasLoadDocument)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
if (methods.HasTransformWith)
{
statements.Add(RoslynHelper.This(nameof(TransformerBase.HasTransformWith)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
if (methods.HasInclude)
{
statements.Add(RoslynHelper.This(nameof(TransformerBase.HasInclude)).Assign(SyntaxFactory.LiteralExpression(SyntaxKind.TrueLiteralExpression)).AsExpressionStatement());
}
var ctor = RoslynHelper.PublicCtor(name).AddBodyStatements(statements.ToArray());
return(RoslynHelper.PublicClass(name)
.WithBaseClass <TransformerBase>()
.WithMembers(SyntaxFactory.SingletonList <MemberDeclarationSyntax>(ctor)));
}