public static void Assign(this BlockStatement block, Expression left, Expression right)
{
if (left == null)
throw new ArgumentNullException("left");
if (right == null)
throw new ArgumentNullException("right");
AddStatement(block, new AssignmentExpression(left, AssignmentOperatorType.Assign, right));
}
public LocalLookupVariable(string name, TypeReference typeRef, Location startPos, Location endPos, bool isConst, bool isLoopVariable, Expression initializer, LambdaExpression parentLambdaExpression, bool isQueryContinuation)
{
this.Name = name;
this.TypeRef = typeRef;
this.StartPos = startPos;
this.EndPos = endPos;
this.IsConst = isConst;
this.IsLoopVariable = isLoopVariable;
this.Initializer = initializer;
this.ParentLambdaExpression = parentLambdaExpression;
this.IsQueryContinuation = isQueryContinuation;
}
/// <summary>
/// Returns the existing expression plus the specified integer value.
/// The old <paramref name="expr"/> object is not modified, but might be a subobject on the new expression
/// (and thus its parent property is modified).
/// </summary>
public static Expression AddInteger(Expression expr, int value)
{
PrimitiveExpression pe = expr as PrimitiveExpression;
if (pe != null && pe.Value is int) {
int newVal = (int)pe.Value + value;
return new PrimitiveExpression(newVal, newVal.ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
}
BinaryOperatorExpression boe = expr as BinaryOperatorExpression;
if (boe != null && boe.Op == BinaryOperatorType.Add) {
// clone boe:
boe = new BinaryOperatorExpression(boe.Left, boe.Op, boe.Right);
boe.Right = AddInteger(boe.Right, value);
if (boe.Right is PrimitiveExpression && ((PrimitiveExpression)boe.Right).Value is int) {
int newVal = (int)((PrimitiveExpression)boe.Right).Value;
if (newVal == 0) {
return boe.Left;
} else if (newVal < 0) {
((PrimitiveExpression)boe.Right).Value = -newVal;
boe.Op = BinaryOperatorType.Subtract;
}
}
return boe;
}
if (boe != null && boe.Op == BinaryOperatorType.Subtract) {
pe = boe.Right as PrimitiveExpression;
if (pe != null && pe.Value is int) {
int newVal = (int)pe.Value - value;
if (newVal == 0)
return boe.Left;
// clone boe:
boe = new BinaryOperatorExpression(boe.Left, boe.Op, boe.Right);
if (newVal < 0) {
newVal = -newVal;
boe.Op = BinaryOperatorType.Add;
}
boe.Right = new PrimitiveExpression(newVal, newVal.ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
return boe;
}
}
BinaryOperatorType opType = BinaryOperatorType.Add;
if (value < 0) {
value = -value;
opType = BinaryOperatorType.Subtract;
}
return new BinaryOperatorExpression(expr, opType, new PrimitiveExpression(value, value.ToString(System.Globalization.NumberFormatInfo.InvariantInfo)));
}
public void AddVariable(TypeReference typeRef, string name,
Location startPos, Location endPos, bool isConst,
bool isLoopVariable, Expression initializer,
LambdaExpression parentLambdaExpression,
bool isQueryContinuation)
{
if (name == null || name.Length == 0) {
return;
}
List<LocalLookupVariable> list;
if (!variables.ContainsKey(name)) {
variables[name] = list = new List<LocalLookupVariable>();
} else {
list = (List<LocalLookupVariable>)variables[name];
}
list.Add(new LocalLookupVariable(name, typeRef, startPos, endPos, isConst, isLoopVariable, initializer, parentLambdaExpression, isQueryContinuation));
}
void CheckMemberReferenceExpression(Expression expr, string memberName, string targetObjectIdentifier)
{
Assert.IsTrue(expr is MemberReferenceExpression);
Assert.IsTrue((expr as MemberReferenceExpression).MemberName == memberName &&
(expr as MemberReferenceExpression).TargetObject is IdentifierExpression &&
((expr as MemberReferenceExpression).TargetObject as IdentifierExpression).Identifier == targetObjectIdentifier);
}
void ReDimClause(out Expression expr) {
SimpleNonInvocationExpression(out expr);
ReDimClauseInternal(ref expr);
}
void ExponentiationExpr(out Expression outExpr) {
Expression expr; Location startLocation = la.Location;
SimpleExpr(out outExpr);
while (la.kind == 32) {
Get();
SimpleExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, BinaryOperatorType.Power, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void MultiplicativeExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
UnaryExpr(out outExpr);
while (la.kind == 24 || la.kind == 34) {
if (la.kind == 34) {
Get();
op = BinaryOperatorType.Multiply;
} else {
Get();
op = BinaryOperatorType.Divide;
}
UnaryExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void ModuloExpr(out Expression outExpr) {
Expression expr; Location startLocation = la.Location;
IntegerDivisionExpr(out outExpr);
while (la.kind == 154) {
Get();
IntegerDivisionExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, BinaryOperatorType.Modulus, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void SimpleNonInvocationExpression(out Expression pexpr) {
Expression expr;
CollectionInitializerExpression cie;
TypeReference type = null;
string name = String.Empty;
Location startLocation = la.Location;
pexpr = null;
if (StartOf(34)) {
switch (la.kind) {
case 3: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 4: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 7: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 6: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 5: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 9: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 8: {
Get();
pexpr = new PrimitiveExpression(t.literalValue, t.val) { LiteralFormat = t.literalFormat };
break;
}
case 217: {
Get();
pexpr = new PrimitiveExpression(true, "true");
break;
}
case 122: {
Get();
pexpr = new PrimitiveExpression(false, "false");
break;
}
case 165: {
Get();
pexpr = new PrimitiveExpression(null, "null");
break;
}
case 37: {
Get();
Expr(out expr);
Expect(38);
pexpr = new ParenthesizedExpression(expr);
break;
}
case 2: case 58: case 62: case 64: case 65: case 66: case 67: case 70: case 87: case 98: case 104: case 107: case 116: case 121: case 126: case 133: case 139: case 143: case 146: case 147: case 170: case 176: case 178: case 184: case 203: case 212: case 213: case 223: case 224: case 230: {
Identifier();
pexpr = new IdentifierExpression(t.val);
pexpr.StartLocation = t.Location; pexpr.EndLocation = t.EndLocation;
if (la.kind == Tokens.OpenParenthesis && Peek(1).kind == Tokens.Of) {
Expect(37);
Expect(169);
TypeArgumentList(((IdentifierExpression)pexpr).TypeArguments);
Expect(38);
}
break;
}
case 68: case 71: case 82: case 99: case 100: case 109: case 141: case 151: case 168: case 196: case 201: case 202: case 208: case 221: case 222: case 225: {
string val = String.Empty;
if (StartOf(13)) {
PrimitiveTypeName(out val);
} else {
Get();
val = "System.Object";
}
pexpr = new TypeReferenceExpression(new TypeReference(val, true));
break;
}
case 153: {
Get();
pexpr = new ThisReferenceExpression();
break;
}
case 158: case 159: {
Expression retExpr = null;
if (la.kind == 158) {
Get();
retExpr = new BaseReferenceExpression() { StartLocation = t.Location, EndLocation = t.EndLocation };
} else {
Get();
retExpr = new ClassReferenceExpression() { StartLocation = t.Location, EndLocation = t.EndLocation };
}
Expect(26);
IdentifierOrKeyword(out name);
pexpr = new MemberReferenceExpression(retExpr, name) { StartLocation = startLocation, EndLocation = t.EndLocation };
break;
}
case 130: {
Get();
Expect(26);
Identifier();
type = new TypeReference(t.val ?? "");
type.IsGlobal = true;
pexpr = new TypeReferenceExpression(type);
break;
}
case 162: {
ObjectCreateExpression(out expr);
pexpr = expr;
break;
}
case 35: {
CollectionInitializer(out cie);
pexpr = cie;
break;
}
case 94: case 106: case 219: {
CastType castType = CastType.Cast;
if (la.kind == 106) {
Get();
} else if (la.kind == 94) {
Get();
castType = CastType.Conversion;
} else {
Get();
castType = CastType.TryCast;
}
Expect(37);
Expr(out expr);
Expect(22);
TypeName(out type);
Expect(38);
pexpr = new CastExpression(type, expr, castType);
break;
}
case 76: case 77: case 78: case 79: case 80: case 81: case 83: case 85: case 86: case 90: case 91: case 92: case 93: case 95: case 96: case 97: {
CastTarget(out type);
Expect(37);
Expr(out expr);
Expect(38);
pexpr = new CastExpression(type, expr, CastType.PrimitiveConversion);
break;
}
case 57: {
Get();
SimpleExpr(out expr);
pexpr = new AddressOfExpression(expr);
break;
}
case 129: {
Get();
Expect(37);
GetTypeTypeName(out type);
Expect(38);
pexpr = new TypeOfExpression(type);
break;
}
case 220: {
Get();
SimpleExpr(out expr);
Expect(144);
TypeName(out type);
pexpr = new TypeOfIsExpression(expr, type);
break;
}
case 135: {
ConditionalExpression(out pexpr);
break;
}
case 10: case 16: case 17: case 18: case 19: {
XmlLiteralExpression(out pexpr);
break;
}
}
} else if (StartOf(35)) {
if (la.kind == 26) {
Get();
if (la.kind == 10) {
Get();
IdentifierOrKeyword(out name);
Expect(11);
pexpr = new XmlMemberAccessExpression(null, XmlAxisType.Element, name, true) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else if (StartOf(33)) {
IdentifierOrKeyword(out name);
pexpr = new MemberReferenceExpression(null, name) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else SynErr(281);
} else if (la.kind == 29) {
Get();
IdentifierOrKeyword(out name);
pexpr = new BinaryOperatorExpression(null, BinaryOperatorType.DictionaryAccess, new PrimitiveExpression(name, name) { StartLocation = t.Location, EndLocation = t.EndLocation });
} else {
XmlAxisType axisType = XmlAxisType.Element; bool isXmlIdentifier = false;
if (la.kind == 27) {
Get();
axisType = XmlAxisType.Descendents;
} else {
Get();
axisType = XmlAxisType.Attribute;
}
if (la.kind == 10) {
Get();
isXmlIdentifier = true;
}
IdentifierOrKeyword(out name);
if (la.kind == 11) {
Get();
}
pexpr = new XmlMemberAccessExpression(null, axisType, name, isXmlIdentifier);
}
} else SynErr(282);
if (pexpr != null) {
pexpr.StartLocation = startLocation;
pexpr.EndLocation = t.EndLocation;
}
}
void SimpleExpr(out Expression pexpr) {
string name; Location startLocation = la.Location;
SimpleNonInvocationExpression(out pexpr);
while (StartOf(32)) {
if (la.kind == 26) {
Get();
if (la.kind == 10) {
Get();
IdentifierOrKeyword(out name);
Expect(11);
pexpr = new XmlMemberAccessExpression(pexpr, XmlAxisType.Element, name, true);
} else if (StartOf(33)) {
IdentifierOrKeyword(out name);
pexpr = new MemberReferenceExpression(pexpr, name) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else SynErr(280);
if (la.kind == Tokens.OpenParenthesis && Peek(1).kind == Tokens.Of) {
Expect(37);
Expect(169);
TypeArgumentList(((MemberReferenceExpression)pexpr).TypeArguments);
Expect(38);
}
} else if (la.kind == 29) {
Get();
IdentifierOrKeyword(out name);
pexpr = new BinaryOperatorExpression(pexpr, BinaryOperatorType.DictionaryAccess, new PrimitiveExpression(name, name) { StartLocation = t.Location, EndLocation = t.EndLocation });
} else if (la.kind == 27 || la.kind == 28) {
XmlAxisType type = XmlAxisType.Attribute; bool isXmlName = false;
if (la.kind == 28) {
Get();
} else {
Get();
type = XmlAxisType.Descendents;
}
if (la.kind == 10) {
Get();
isXmlName = true;
}
IdentifierOrKeyword(out name);
if (la.kind == 11) {
Get();
}
pexpr = new XmlMemberAccessExpression(pexpr, type, name, isXmlName);
} else {
InvocationExpression(ref pexpr);
}
}
if (pexpr != null) {
pexpr.StartLocation = startLocation;
pexpr.EndLocation = t.EndLocation;
}
}
void DisjunctionExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
ConjunctionExpr(out outExpr);
while (la.kind == 175 || la.kind == 177 || la.kind == 236) {
if (la.kind == 175) {
Get();
op = BinaryOperatorType.BitwiseOr;
} else if (la.kind == 177) {
Get();
op = BinaryOperatorType.LogicalOr;
} else {
Get();
op = BinaryOperatorType.ExclusiveOr;
}
ConjunctionExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void LambdaExpr(out Expression expr) {
LambdaExpression lambda = null;
if (la.kind == 210) {
SubLambdaExpression(out lambda);
} else if (la.kind == 127) {
FunctionLambdaExpression(out lambda);
} else SynErr(278);
expr = lambda;
}
void QueryExpr(out Expression expr) {
QueryExpression qexpr = new QueryExpression();
qexpr.StartLocation = la.Location;
expr = qexpr;
FromOrAggregateQueryOperator(qexpr.Clauses);
while (StartOf(31)) {
QueryOperator(qexpr.Clauses);
}
qexpr.EndLocation = t.EndLocation;
}
void ObjectCreateExpression(out Expression oce) {
TypeReference type = null;
CollectionInitializerExpression initializer = null;
List<Expression> arguments = null;
ArrayList dimensions = null;
oce = null;
Location startLocation = la.Location;
bool canBeNormal; bool canBeReDim;
Expect(162);
if (StartOf(9)) {
NonArrayTypeName(out type, false);
if (la.kind == 37) {
Get();
NormalOrReDimArgumentList(out arguments, out canBeNormal, out canBeReDim);
Expect(38);
if (la.kind == 35 || (la.kind == Tokens.OpenParenthesis)) {
if (la.kind == Tokens.OpenParenthesis) {
ArrayTypeModifiers(out dimensions);
CollectionInitializer(out initializer);
} else {
CollectionInitializer(out initializer);
}
}
if (canBeReDim && !canBeNormal && initializer == null) initializer = new CollectionInitializerExpression();
}
}
if (initializer == null) {
oce = new ObjectCreateExpression(type, arguments);
} else {
if (dimensions == null) dimensions = new ArrayList();
dimensions.Insert(0, (arguments == null) ? 0 : Math.Max(arguments.Count - 1, 0));
type.RankSpecifier = (int[])dimensions.ToArray(typeof(int));
ArrayCreateExpression ace = new ArrayCreateExpression(type, initializer);
ace.Arguments = arguments;
oce = ace;
}
if (la.kind == 126 || la.kind == 233) {
if (la.kind == 233) {
MemberInitializerExpression memberInitializer = null;
Expression anonymousMember = null;
Get();
CollectionInitializerExpression memberInitializers = new CollectionInitializerExpression();
memberInitializers.StartLocation = la.Location;
Expect(35);
if (la.kind == 26 || la.kind == 147) {
MemberInitializer(out memberInitializer);
memberInitializers.CreateExpressions.Add(memberInitializer);
} else if (StartOf(24)) {
Expr(out anonymousMember);
memberInitializers.CreateExpressions.Add(anonymousMember);
} else SynErr(272);
while (la.kind == 22) {
Get();
if (la.kind == 26 || la.kind == 147) {
MemberInitializer(out memberInitializer);
memberInitializers.CreateExpressions.Add(memberInitializer);
} else if (StartOf(24)) {
Expr(out anonymousMember);
memberInitializers.CreateExpressions.Add(anonymousMember);
} else SynErr(273);
}
Expect(36);
memberInitializers.EndLocation = t.Location;
if(oce is ObjectCreateExpression)
{
((ObjectCreateExpression)oce).ObjectInitializer = memberInitializers;
}
} else {
Get();
CollectionInitializer(out initializer);
if(oce is ObjectCreateExpression)
((ObjectCreateExpression)oce).ObjectInitializer = initializer;
}
}
if (oce != null) {
oce.StartLocation = startLocation;
oce.EndLocation = t.EndLocation;
}
}
void ConcatenationExpr(out Expression outExpr) {
Expression expr; Location startLocation = la.Location;
AdditiveExpr(out outExpr);
while (la.kind == 23) {
Get();
AdditiveExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, BinaryOperatorType.Concat, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void AdditiveExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
ModuloExpr(out outExpr);
while (la.kind == 30 || la.kind == 31) {
if (la.kind == 31) {
Get();
op = BinaryOperatorType.Add;
} else {
Get();
op = BinaryOperatorType.Subtract;
}
ModuloExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void InvocationExpression(ref Expression pexpr) {
List<Expression> parameters = null;
Expect(37);
Location start = t.Location;
ArgumentList(out parameters);
Expect(38);
pexpr = new InvocationExpression(pexpr, parameters);
pexpr.StartLocation = start; pexpr.EndLocation = t.Location;
}
void IntegerDivisionExpr(out Expression outExpr) {
Expression expr; Location startLocation = la.Location;
MultiplicativeExpr(out outExpr);
while (la.kind == 25) {
Get();
MultiplicativeExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, BinaryOperatorType.DivideInteger, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void ConditionalExpression(out Expression expr) {
ConditionalExpression conditionalExpression = new ConditionalExpression();
BinaryOperatorExpression binaryOperatorExpression = new BinaryOperatorExpression();
conditionalExpression.StartLocation = binaryOperatorExpression.StartLocation = la.Location;
Expression condition = null;
Expression trueExpr = null;
Expression falseExpr = null;
Expect(135);
Expect(37);
Expr(out condition);
Expect(22);
Expr(out trueExpr);
if (la.kind == 22) {
Get();
Expr(out falseExpr);
}
Expect(38);
if(falseExpr != null)
{
conditionalExpression.Condition = condition;
conditionalExpression.TrueExpression = trueExpr;
conditionalExpression.FalseExpression = falseExpr;
conditionalExpression.EndLocation = t.EndLocation;
expr = conditionalExpression;
}
else
{
binaryOperatorExpression.Left = condition;
binaryOperatorExpression.Right = trueExpr;
binaryOperatorExpression.Op = BinaryOperatorType.NullCoalescing;
binaryOperatorExpression.EndLocation = t.EndLocation;
expr = binaryOperatorExpression;
}
}
void UnaryExpr(out Expression uExpr) {
Expression expr;
UnaryOperatorType uop = UnaryOperatorType.None;
Location startLocation = la.Location;
bool isUOp = false;
while (la.kind == 30 || la.kind == 31 || la.kind == 34) {
if (la.kind == 31) {
Get();
uop = UnaryOperatorType.Plus; isUOp = true;
} else if (la.kind == 30) {
Get();
uop = UnaryOperatorType.Minus; isUOp = true;
} else {
Get();
uop = UnaryOperatorType.Dereference; isUOp = true;
}
}
ExponentiationExpr(out expr);
if (isUOp) {
uExpr = new UnaryOperatorExpression(expr, uop) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else {
uExpr = expr;
}
}
void XmlLiteralExpression(out Expression pexpr) {
List<XmlExpression> exprs = new List<XmlExpression>();
XmlExpression currentExpression = null;
if (StartOf(36)) {
XmlContentExpression(exprs);
while (StartOf(36)) {
XmlContentExpression(exprs);
}
if (la.kind == 10) {
XmlElement(out currentExpression);
exprs.Add(currentExpression);
while (StartOf(36)) {
XmlContentExpression(exprs);
}
}
} else if (la.kind == 10) {
XmlElement(out currentExpression);
exprs.Add(currentExpression);
while (StartOf(36)) {
XmlContentExpression(exprs);
}
} else SynErr(285);
if (exprs.Count > 1) {
pexpr = new XmlDocumentExpression() { Expressions = exprs };
} else {
pexpr = exprs[0];
}
}
void Argument(out Expression argumentexpr) {
Expression expr;
argumentexpr = null;
string name;
Location startLocation = la.Location;
if (IsNamedAssign()) {
Identifier();
name = t.val;
Expect(55);
Expr(out expr);
argumentexpr = new NamedArgumentExpression(name, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else if (StartOf(24)) {
Expr(out argumentexpr);
} else SynErr(299);
}
void ConjunctionExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
NotExpr(out outExpr);
while (la.kind == 60 || la.kind == 61) {
if (la.kind == 60) {
Get();
op = BinaryOperatorType.BitwiseAnd;
} else {
Get();
op = BinaryOperatorType.LogicalAnd;
}
NotExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}
void ReDimClauseInternal(ref Expression expr) {
List<Expression> arguments; bool canBeNormal; bool canBeRedim; string name; Location startLocation = la.Location;
while (la.kind == 26 || (la.kind == Tokens.OpenParenthesis && Peek(1).kind == Tokens.Of)) {
if (la.kind == 26) {
Get();
IdentifierOrKeyword(out name);
expr = new MemberReferenceExpression(expr, name) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else {
InvocationExpression(ref expr);
expr.StartLocation = startLocation;
expr.EndLocation = t.EndLocation;
}
}
Expect(37);
NormalOrReDimArgumentList(out arguments, out canBeNormal, out canBeRedim);
Expect(38);
expr = new InvocationExpression(expr, arguments);
if (canBeRedim == false || canBeNormal && (la.kind == Tokens.Dot || la.kind == Tokens.OpenParenthesis)) {
if (this.Errors.Count == 0) {
// don't recurse on parse errors - could result in endless recursion
ReDimClauseInternal(ref expr);
}
}
}
void NotExpr(out Expression outExpr) {
UnaryOperatorType uop = UnaryOperatorType.None;
while (la.kind == 164) {
Get();
uop = UnaryOperatorType.Not;
}
ComparisonExpr(out outExpr);
if (uop != UnaryOperatorType.None)
outExpr = new UnaryOperatorExpression(outExpr, uop);
}
public static Expression CheckNull(Expression expression)
{
return expression == null ? NullExpression.Instance : expression;
}
void ComparisonExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
ShiftExpr(out outExpr);
while (StartOf(40)) {
switch (la.kind) {
case 40: {
Get();
op = BinaryOperatorType.LessThan;
break;
}
case 39: {
Get();
op = BinaryOperatorType.GreaterThan;
break;
}
case 43: {
Get();
op = BinaryOperatorType.LessThanOrEqual;
break;
}
case 42: {
Get();
op = BinaryOperatorType.GreaterThanOrEqual;
break;
}
case 41: {
Get();
op = BinaryOperatorType.InEquality;
break;
}
case 20: {
Get();
op = BinaryOperatorType.Equality;
break;
}
case 150: {
Get();
op = BinaryOperatorType.Like;
break;
}
case 144: {
Get();
op = BinaryOperatorType.ReferenceEquality;
break;
}
case 145: {
Get();
op = BinaryOperatorType.ReferenceInequality;
break;
}
}
if (StartOf(41)) {
ShiftExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else if (la.kind == 164) {
Location startLocation2 = la.Location;
Get();
ShiftExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, new UnaryOperatorExpression(expr, UnaryOperatorType.Not) { StartLocation = startLocation2, EndLocation = t.EndLocation }) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else SynErr(292);
}
}
Expression CheckPropertyInitializationExpression(Expression e, string name)
{
Assert.IsInstanceOf(typeof(MemberInitializerExpression), e);
Assert.AreEqual(name, ((MemberInitializerExpression)e).Name);
return ((MemberInitializerExpression)e).Expression;
}
void ShiftExpr(out Expression outExpr) {
Expression expr;
BinaryOperatorType op = BinaryOperatorType.None;
Location startLocation = la.Location;
ConcatenationExpr(out outExpr);
while (la.kind == 44 || la.kind == 45) {
if (la.kind == 44) {
Get();
op = BinaryOperatorType.ShiftLeft;
} else {
Get();
op = BinaryOperatorType.ShiftRight;
}
ConcatenationExpr(out expr);
outExpr = new BinaryOperatorExpression(outExpr, op, expr) { StartLocation = startLocation, EndLocation = t.EndLocation };
}
}