Esempio n. 1
0
        public void ParserBinaryExpressionHonornsPrecedences(SyntaxKind op1, SyntaxKind op2)
        {
            int              op1Precedence = SyntaxFacts.GetBinaryOperatorPrecedence(op1);
            int              op2Precedence = SyntaxFacts.GetBinaryOperatorPrecedence(op2);
            string           op1Text       = SyntaxFacts.GetText(op1);
            string           op2Text       = SyntaxFacts.GetText(op2);
            string           text          = $"a {op1Text} b {op2Text} c";
            ExpressionSyntax expression    = ParseExpression(text);

            if (op1Precedence >= op2Precedence)
            {
                using (var e = new AssertingEnumerator(expression))
                {
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "a");
                    e.AssertToken(op1, op1Text);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "b");
                    e.AssertToken(op2, op2Text);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "c");
                }
            }
            else
            {
                using (var e = new AssertingEnumerator(expression))
                {
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "a");
                    e.AssertToken(op1, op1Text);
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "b");
                    e.AssertToken(op2, op2Text);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "c");
                }
            }
        }
Esempio n. 2
0
        public void ParserUnaryExpressionHonornsPrecedences(SyntaxKind unaryKind, SyntaxKind binaryKind)
        {
            int              unaryPrecedence  = SyntaxFacts.GetUnaryOperatorPrecedence(unaryKind);
            int              binaryPrecedence = SyntaxFacts.GetBinaryOperatorPrecedence(binaryKind);
            string           unaryText        = SyntaxFacts.GetText(unaryKind);
            string           binaryText       = SyntaxFacts.GetText(binaryKind);
            string           text             = $"{unaryText} a {binaryText} b";
            ExpressionSyntax expression       = ParseExpression(text);

            if (unaryPrecedence >= binaryPrecedence)
            {
                using (var e = new AssertingEnumerator(expression))
                {
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.UnaryExpression);
                    e.AssertToken(unaryKind, unaryText);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "a");
                    e.AssertToken(binaryKind, binaryText);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "b");
                }
            }
            else
            {
                using (var e = new AssertingEnumerator(expression))
                {
                    e.AssertNode(SyntaxKind.UnaryExpression);
                    e.AssertToken(unaryKind, unaryText);
                    e.AssertNode(SyntaxKind.BinaryExpression);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "a");
                    e.AssertToken(binaryKind, binaryText);
                    e.AssertNode(SyntaxKind.NameExpression);
                    e.AssertToken(SyntaxKind.IdentifierToken, "b");
                }
            }
        }