public PqlCompilerState(
IExpressionEvaluatorRuntime parentRuntime,
ParsedRequest parsedRequest,
DataRequestParams requestParams,
DataContainerDescriptor containerDescriptor,
Type contextType,
Type returnType)
: base(parentRuntime, contextType, returnType, null)
{
if (parsedRequest == null)
{
throw new ArgumentNullException("parsedRequest");
}
if (containerDescriptor == null)
{
throw new ArgumentNullException("containerDescriptor");
}
if (requestParams == null)
{
throw new ArgumentNullException("requestParams");
}
ParsedRequest = parsedRequest;
RequestParameters = requestParams;
ContainerDescriptor = containerDescriptor;
FieldRefs = new Dictionary<int, Tuple<ParameterExpression, Expression>>();
ParamRefs = new Dictionary<int, Tuple<ParameterExpression, Expression>>();
}
public PqlCompilerState(
IExpressionEvaluatorRuntime parentRuntime,
ParsedRequest parsedRequest,
DataRequestParams requestParams,
DataContainerDescriptor containerDescriptor,
Type contextType,
Type returnType)
: base(parentRuntime, contextType, returnType, null)
{
if (parsedRequest == null)
{
throw new ArgumentNullException("parsedRequest");
}
if (containerDescriptor == null)
{
throw new ArgumentNullException("containerDescriptor");
}
if (requestParams == null)
{
throw new ArgumentNullException("requestParams");
}
ParsedRequest = parsedRequest;
RequestParameters = requestParams;
ContainerDescriptor = containerDescriptor;
FieldRefs = new Dictionary <int, Tuple <ParameterExpression, Expression> >();
ParamRefs = new Dictionary <int, Tuple <ParameterExpression, Expression> >();
}
static QueryParser()
{
Grammar = new GrammarPql();
LangData = new LanguageData(Grammar);
PqlNonTerminal = LangData.GrammarData.NonTerminals.Single(x => x.Name == "stmtList");
s_expressionRuntime = new ExpressionEvaluatorRuntime();
InitPqlExpressionRuntime(s_expressionRuntime);
}
private static void InitPqlExpressionRuntime(IExpressionEvaluatorRuntime runtime)
{
if (runtime == null)
{
throw new ArgumentNullException("runtime");
}
runtime.RegisterDynamicAtomHandler(new AtomMetadata(AtomType.Identifier, "Pql top-level fields", TopLevelAtomExpressionGeneratorForFields));
runtime.RegisterDynamicAtomHandler(new AtomMetadata(AtomType.Identifier, "Pql parameters", TopLevelAtomExpressionGeneratorForParameters));
runtime.RegisterAtom(new AtomMetadata(AtomType.Function, "rownum", PredefinedAtom_RowNumber));
runtime.RegisterAtom(new AtomMetadata(AtomType.Function, "rownumoutput", PredefinedAtom_RowNumberInPage));
}
/// <summary>
/// DO NOT REMOVE! Used implicitly, via generic method instantiation.
/// </summary>
public static HashSet <T> EnumerateValues <T>(IExpressionEvaluatorRuntime runtime, ParseTreeNode root, CompilerState state)
{
if (runtime == null)
{
throw new ArgumentNullException("runtime");
}
if (root == null)
{
throw new ArgumentNullException("root");
}
if (state == null)
{
throw new ArgumentNullException("state");
}
var isString = ReferenceEquals(typeof(T), typeof(string));
var result = isString ? new HashSet <T>((IEqualityComparer <T>)StringComparer.OrdinalIgnoreCase) : new HashSet <T>();
foreach (var childNode in root.ChildNodes)
{
var item = runtime.Analyze(childNode, state);
item.RequireNonVoid(childNode);
try
{
result.Add((T)Convert.ChangeType(((ConstantExpression)item).Value, typeof(T)));
}
catch
{
throw new CompilationException(
String.Format(
"All items in the IN arguments list must be constants of type compatible with {0}. Actual expression found: {1}, of type {2}",
typeof(T).FullName, item.NodeType, item.Type), childNode);
}
}
return(result);
}
/// <summary>
/// Ctr.
/// </summary>
/// <param name="parentRuntime">Reference to the runtime which created this state object</param>
/// <param name="contextType">Optional, type of the default @Context argument</param>
/// <param name="returnType">Optional return type, supply null to compile to Action</param>
/// <param name="args">Ordered list of types of arguments</param>
public CompilerState(IExpressionEvaluatorRuntime parentRuntime, Type contextType, Type returnType, params Tuple <string, Type>[] args)
{
if (parentRuntime == null)
{
throw new ArgumentNullException("parentRuntime");
}
var arguments = new List <ParameterExpression>();
if (contextType != null)
{
arguments.Add(Expression.Parameter(contextType, "@Context"));
}
if (args != null && args.Length > 0)
{
for (var i = 0; i < args.Length; i++)
{
var name = args[i].Item1;
var type = args[i].Item2;
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Empty argument name at position " + i);
}
if (arguments.Any(x => 0 == StringComparer.OrdinalIgnoreCase.Compare(x.Name, name)))
{
throw new ArgumentException("Duplicate argument name: " + name);
}
arguments.Add(Expression.Parameter(type, name));
}
}
ParentRuntime = parentRuntime;
ReturnType = returnType;
Arguments = arguments;
}
/// <summary>
/// Ctr.
/// </summary>
/// <param name="parentRuntime">Reference to the runtime which created this state object</param>
/// <param name="contextType">Optional, type of the default @Context argument</param>
/// <param name="returnType">Optional return type, supply null to compile to Action</param>
/// <param name="args">Ordered list of types of arguments</param>
public CompilerState(IExpressionEvaluatorRuntime parentRuntime, Type contextType, Type returnType, params Tuple<string, Type>[] args)
{
if (parentRuntime == null)
{
throw new ArgumentNullException("parentRuntime");
}
var arguments = new List<ParameterExpression>();
if (contextType != null)
{
arguments.Add(Expression.Parameter(contextType, "@Context"));
}
if (args != null && args.Length > 0)
{
for (var i = 0; i < args.Length; i++)
{
var name = args[i].Item1;
var type = args[i].Item2;
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Empty argument name at position " + i);
}
if (arguments.Any(x => 0 == StringComparer.OrdinalIgnoreCase.Compare(x.Name, name)))
{
throw new ArgumentException("Duplicate argument name: " + name);
}
arguments.Add(Expression.Parameter(type, name));
}
}
ParentRuntime = parentRuntime;
ReturnType = returnType;
Arguments = arguments;
}
static QueryParser()
{
Grammar = new GrammarPql();
LangData = new LanguageData(Grammar);
PqlNonTerminal = LangData.GrammarData.NonTerminals.Single(x => x.Name == "stmtList");
s_expressionRuntime = new ExpressionEvaluatorRuntime();
InitPqlExpressionRuntime(s_expressionRuntime);
}
private static void InitPqlExpressionRuntime(IExpressionEvaluatorRuntime runtime)
{
if (runtime == null)
{
throw new ArgumentNullException("runtime");
}
runtime.RegisterDynamicAtomHandler(new AtomMetadata(AtomType.Identifier, "Pql top-level fields", TopLevelAtomExpressionGeneratorForFields));
runtime.RegisterDynamicAtomHandler(new AtomMetadata(AtomType.Identifier, "Pql parameters", TopLevelAtomExpressionGeneratorForParameters));
runtime.RegisterAtom(new AtomMetadata(AtomType.Function, "rownum", PredefinedAtom_RowNumber));
runtime.RegisterAtom(new AtomMetadata(AtomType.Function, "rownumoutput", PredefinedAtom_RowNumberInPage));
}
