Ejemplo n.º 1
0
        public void BadNumbers()
        {
            ExprAnalyser a = new ExprAnalyser();
            JSTokenizer p = new JSTokenizer();

            {
                p.Reset( "45DD" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( "45.member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( ".45.member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( "45.01member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( ".45.member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( ".45.01member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
            {
                p.Reset( "45.01e23member" );
                Assert.That( p.IsErrorOrEndOfInput, Is.True );
                Assert.That( p.ErrorCode, Is.EqualTo( JSTokenizerError.ErrorNumberIdentifierStartsImmediately ) );
            }
        }
Ejemplo n.º 2
0
 public void ArraySupport()
 {
     ExprAnalyser a = new ExprAnalyser();
     JSTokenizer p = new JSTokenizer();
     {
         p.Reset( "a[9]" );
         Assert.That( p.IsErrorOrEndOfInput, Is.False );
         Expr e = a.Analyse( p );
         Assert.That( e is AccessorIndexerExpr );
         AccessorIndexerExpr ac = e as AccessorIndexerExpr;
         IsConstant( ac.Index, 9 );
     }
     {
         p.Reset( "array['Hello World!']" );
         Assert.That( p.IsErrorOrEndOfInput, Is.False );
         Expr e = a.Analyse( p );
         Assert.That( e is AccessorIndexerExpr );
         AccessorIndexerExpr ac = e as AccessorIndexerExpr;
         IsConstant( ac.Index, "Hello World!" );
     }
 }
Ejemplo n.º 3
0
 public static Expr AnalyseString( string s, Config configuration = null)
 {
     ExprAnalyser a = new ExprAnalyser( configuration );
     return a.Analyse( new JSTokenizer( s ) );
 }
Ejemplo n.º 4
0
        public void SimpleExpression()
        {
            ExprAnalyser a = new ExprAnalyser();
            JSTokenizer p = new JSTokenizer();

            {
                p.Reset( "value" );
                Assert.That( p.IsErrorOrEndOfInput, Is.False );
                 Expr e = a.Analyse( p );
                Assert.That( e is AccessorMemberExpr );
                AccessorMemberExpr ac = e as AccessorMemberExpr;
                Assert.That( ac.IsUnbound == true );
            }
            {
                p.Reset( "!" );
                Expr e = a.Analyse( p );
                Assert.That( e is UnaryExpr );
                UnaryExpr u = e as UnaryExpr;
                Assert.That( u.TokenType == JSTokenizerToken.Not );
                Assert.That( u.Expression is SyntaxErrorExpr );
                Assert.That( SyntaxErrorCollector.Collect( e, null ).Count == 1 );
            }
            {
                p.Reset( "!value" );
                Expr e = a.Analyse( p );
                Assert.That( e is UnaryExpr );
                UnaryExpr u = e as UnaryExpr;
                Assert.That( u.TokenType == JSTokenizerToken.Not );
                Assert.That( u.Expression is AccessorExpr );
                Assert.That( SyntaxErrorCollector.Collect( e, Util.ActionVoid ).Count == 0 );
            }
            {
                p.Reset( " 0.12e43 && ~b " );
                Expr e = a.Analyse( p );
                Assert.That( e is BinaryExpr );
                BinaryExpr and = e as BinaryExpr;
                Assert.That( and.BinaryOperatorToken == JSTokenizerToken.And );
                IsConstant( and.Left, 0.12e43 );
                Assert.That( and.Right is UnaryExpr );
                UnaryExpr u = and.Right as UnaryExpr;
                Assert.That( u.TokenType == JSTokenizerToken.BitwiseNot );
                Assert.That( u.Expression is AccessorExpr );

                Assert.That( SyntaxErrorCollector.Collect( e, Util.ActionVoid ).Count == 0 );
            }
            {
                p.Reset( @"!a||~""x""" );
                Expr e = a.Analyse( p );
                Assert.That( e is BinaryExpr );
                BinaryExpr or = e as BinaryExpr;
                Assert.That( or.BinaryOperatorToken == JSTokenizerToken.Or );
                Assert.That( or.Left is UnaryExpr );
                Assert.That( or.Right is UnaryExpr );
                UnaryExpr u = or.Right as UnaryExpr;
                Assert.That( u.TokenType == JSTokenizerToken.BitwiseNot );
                IsConstant( u.Expression, "x" );

                Assert.That( SyntaxErrorCollector.Collect( e, Util.ActionVoid ).Count == 0 );
            }
            {
                p.Reset( "(3)" );
                Expr e = a.Analyse( p );
                IsConstant( e, 3 );
            }
            {
                p.Reset( "(3+typeof 'x')" );
                Expr e = a.Analyse( p );
                Assert.That( e is BinaryExpr );
                BinaryExpr b = e as BinaryExpr;
                IsConstant( b.Left, 3 );
                Assert.That( b.Right is UnaryExpr );
                UnaryExpr u = b.Right as UnaryExpr;
                Assert.That( u.TokenType == JSTokenizerToken.TypeOf );
                IsConstant( u.Expression, "x" );

                Assert.That( SyntaxErrorCollector.Collect( e, Util.ActionVoid ).Count == 0 );
            }
            {
                p.Reset( "1 ? 2 : 3" );
                Expr e = a.Analyse( p );
                Assert.That( e is IfExpr );
                IfExpr i = e as IfExpr;
                Assert.That( i.IsTernaryOperator == true );
                IsConstant( i.Condition, 1 );
                IsConstant( i.WhenTrue, 2 );
                IsConstant( i.WhenFalse, 3 );
            }
        }
Ejemplo n.º 5
0
 public void EmptyParsing()
 {
     ExprAnalyser a = new ExprAnalyser();
     JSTokenizer p = new JSTokenizer();
     {
         p.Reset( "" );
         Assert.That( p.IsEndOfInput );
         Expr e = a.Analyse( p );
         Assert.That( e is SyntaxErrorExpr );
     }
     {
         p.Reset( " \r\n \n   \r  \n \t  " );
         Assert.That( p.IsEndOfInput );
         Expr e = a.Analyse( p );
         Assert.That( e is SyntaxErrorExpr );
     }
 }
Ejemplo n.º 6
0
        public static Expr AnalyseString(string s, Config configuration = null)
        {
            ExprAnalyser a = new ExprAnalyser(configuration);

            return(a.Analyse(new JSTokenizer(s)));
        }
Ejemplo n.º 7
0
 /// <summary>
 /// Executes a string by first calling <see cref="ExprAnalyser.AnalyseString"/>.
 /// </summary>
 /// <param name="s">The string to execute.</param>
 /// <returns>A result that may be pending...</returns>
 public Result Execute(string s)
 {
     return(Execute(ExprAnalyser.AnalyseString(s)));
 }
Ejemplo n.º 8
0
 /// <summary>
 /// Simple static helper to evaluate a string (typically a pure expression without side effects).
 /// </summary>
 /// <param name="s">The string to evaluate.</param>
 /// <param name="ctx">The <see cref="GlobalContext"/>. When null, a new default GlobalContext is used.</param>
 /// <returns>The result of the evaluation.</returns>
 public static RuntimeObj Evaluate(string s, GlobalContext ctx = null)
 {
     return(Evaluate(ExprAnalyser.AnalyseString(s)));
 }