public void ConditionalDoesNotContainEmbeddedSpaces()
{
AssertCorrect(JsExpression.Conditional(
JsExpression.Number(1),
JsExpression.Number(2),
JsExpression.Number(3)
),
"(1?2:3)");
}
public void ConditionalIsAlwaysParenthesized()
{
AssertCorrect(JsExpression.Conditional(
JsExpression.Number(1),
JsExpression.Number(2),
JsExpression.Number(3)
),
"(1 ? 2 : 3)");
}
public void ExpressionNodeTypeIsNotParenthesizedInsideConditional()
{
AssertCorrect(JsExpression.Conditional(
JsExpression.Unary(ExpressionNodeType.Negate, JsExpression.Number(1)),
JsExpression.Unary(ExpressionNodeType.Negate, JsExpression.Number(2)),
JsExpression.Unary(ExpressionNodeType.Negate, JsExpression.Number(3))
),
"(-1 ? -2 : -3)");
}
public void ConditionalIsNotDoublyParenthesized()
{
AssertCorrect(JsExpression.Binary(ExpressionNodeType.Add,
JsExpression.Number(1),
JsExpression.Conditional(
JsExpression.Number(2),
JsExpression.Number(3),
JsExpression.Number(4)
)
),
"1 + (2 ? 3 : 4)");
}
public void ExpressionStatementIsParenthesizedWhenItStartsWithAnObjectLiteral()
{
AssertCorrect((JsStatement)JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), "({ a: 0 });\n");
AssertCorrect((JsStatement)JsExpression.Invocation(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0)))), "({ a: 0 }());\n");
AssertCorrect((JsStatement)JsExpression.Member(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), "a"), "({ a: 0 }.a);\n");
AssertCorrect((JsStatement)JsExpression.Comma(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), JsExpression.Null), "({ a: 0 }, null);\n");
AssertCorrect((JsStatement)JsExpression.Conditional(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), JsExpression.Number(0), JsExpression.Number(1)), "({ a: 0 } ? 0 : 1);\n");
AssertCorrect((JsStatement)JsExpression.PrefixPlusPlus(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0)))), "++{ a: 0 };\n");
AssertCorrect((JsStatement)JsExpression.PostfixPlusPlus(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0)))), "({ a: 0 }++);\n");
AssertCorrect((JsStatement)JsExpression.PostfixMinusMinus(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0)))), "({ a: 0 }--);\n");
AssertCorrect((JsStatement)JsExpression.Index(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), JsExpression.Number(0)), "({ a: 0 }[0]);\n");
AssertCorrect((JsStatement)JsExpression.Member(JsExpression.Invocation(JsExpression.Member(JsExpression.ObjectLiteral(new JsObjectLiteralProperty("a", JsExpression.Number(0))), "a")), "b"), "({ a: 0 }.a().b);\n");
}
private JsExpression GetFieldHashCode(IField field)
{
var impl = _metadataImporter.GetFieldSemantics(field);
if (impl.Type != FieldScriptSemantics.ImplType.Field)
{
return(null);
}
IType type = NullableType.GetUnderlyingType(field.Type);
bool needNullCheck = field.Type.IsReferenceType != false || field.Type.IsKnownType(KnownTypeCode.NullableOfT) || type.Kind == TypeKind.Enum && MetadataUtils.IsNamedValues(field.Type.GetDefinition(), _attributeStore);
JsExpression member = JsExpression.Member(JsExpression.This, impl.Name);
JsExpression result = JsExpression.Invocation(JsExpression.Member(_systemScript, "getHashCode"), member);
if (needNullCheck)
{
result = JsExpression.Conditional(member, result, JsExpression.Number(0));
}
if (type.Kind == TypeKind.Enum && !MetadataUtils.IsNamedValues(type.GetDefinition(), _attributeStore))
{
result = needNullCheck ? JsExpression.LogicalOr(member, JsExpression.Number(0)) : member;
}
else if (type is ITypeDefinition)
{
switch (((ITypeDefinition)type).KnownTypeCode)
{
case KnownTypeCode.Boolean:
result = JsExpression.Conditional(member, JsExpression.Number(1), JsExpression.Number(0));
break;
case KnownTypeCode.Byte:
case KnownTypeCode.SByte:
case KnownTypeCode.Char:
case KnownTypeCode.Int16:
case KnownTypeCode.UInt16:
case KnownTypeCode.Int32:
case KnownTypeCode.UInt32:
case KnownTypeCode.Int64:
case KnownTypeCode.UInt64:
case KnownTypeCode.Decimal:
case KnownTypeCode.Single:
case KnownTypeCode.Double:
result = needNullCheck ? JsExpression.LogicalOr(member, JsExpression.Number(0)) : member;
break;
}
}
return(result);
}
public void MultiplicationInConditionalIsParenthesized()
{
AssertCorrect(JsExpression.Conditional(
JsExpression.Binary(ExpressionNodeType.Multiply,
JsExpression.Number(1),
JsExpression.Number(2)
),
JsExpression.Binary(ExpressionNodeType.Multiply,
JsExpression.Number(3),
JsExpression.Number(4)
),
JsExpression.Binary(ExpressionNodeType.Multiply,
JsExpression.Number(5),
JsExpression.Number(6)
)
),
"((1 * 2) ? (3 * 4) : (5 * 6))");
}
public virtual JsExpression VisitConditionalExpression(JsConditionalExpression expression, TData data)
{
var test = VisitExpression(expression.Test, data);
var truePart = VisitExpression(expression.TruePart, data);
var falsePart = VisitExpression(expression.FalsePart, data);
return(ReferenceEquals(test, expression.Test) && ReferenceEquals(truePart, expression.TruePart) && ReferenceEquals(falsePart, expression.FalsePart) ? expression : JsExpression.Conditional(test, truePart, falsePart));
}
