Examples with ExpressionNode org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode used on opensource projects

Example 1 with ExpressionNode

use of org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode in project sling by apache.

the class I18nFilter method apply.

@Override
public Expression apply(Expression expression, ExpressionContext expressionContext) {
    if (!expression.containsOption(I18N_OPTION) || expressionContext == ExpressionContext.PLUGIN_DATA_SLY_USE || expressionContext == ExpressionContext.PLUGIN_DATA_SLY_TEMPLATE || expressionContext == ExpressionContext.PLUGIN_DATA_SLY_CALL) {
        return expression;
    }
    Map<String, ExpressionNode> options = getFilterOptions(expression, HINT_OPTION, LOCALE_OPTION, BASENAME_OPTION);
    ExpressionNode translation = new RuntimeCall(RuntimeFunction.I18N, expression.getRoot(), new MapLiteral(options));
    expression.removeOption(I18N_OPTION);
    expression.getOptions().put(FormatFilter.FORMAT_LOCALE_OPTION, options.get(LOCALE_OPTION));
    return expression.withNode(translation);
}

Example 2 with ExpressionNode

use of org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode in project sling by apache.

the class ExpressionWrapper method transform.

public Expression transform(Interpolation interpolation, MarkupContext markupContext, ExpressionContext expressionContext) {
    ArrayList<ExpressionNode> nodes = new ArrayList<>();
    HashMap<String, ExpressionNode> options = new HashMap<>();
    for (Fragment fragment : interpolation.getFragments()) {
        if (fragment.isString()) {
            nodes.add(new StringConstant(fragment.getText()));
        } else {
            Expression expression = fragment.getExpression();
            Expression transformed = adjustToContext(expression, markupContext, expressionContext);
            nodes.add(transformed.getRoot());
            options.putAll(transformed.getOptions());
        }
    }
    ExpressionNode root = join(nodes);
    if (interpolation.size() > 1 && options.containsKey(Syntax.CONTEXT_OPTION)) {
        //context must not be calculated by merging
        options.remove(Syntax.CONTEXT_OPTION);
    }
    return new Expression(root, options, interpolation.getContent());
}

Example 3 with ExpressionNode

use of org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode in project sling by apache.

the class DeadCodeRemoval method visit.

@Override
public void visit(VariableBinding.Start variableBindingStart) {
    Boolean truthValue = null;
    ExpressionNode node = variableBindingStart.getExpression();
    if (node instanceof StringConstant) {
        truthValue = CompileTimeObjectModel.toBoolean(((StringConstant) node).getText());
    }
    if (node instanceof BooleanConstant) {
        truthValue = ((BooleanConstant) node).getValue();
    }
    if (node instanceof NumericConstant) {
        truthValue = CompileTimeObjectModel.toBoolean(((NumericConstant) node).getValue());
    }
    if (node instanceof NullLiteral) {
        truthValue = CompileTimeObjectModel.toBoolean(null);
    }
    tracker.pushVariable(variableBindingStart.getVariableName(), truthValue);
    outStream.write(variableBindingStart);
}

Example 4 with ExpressionNode

use of org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode in project sling by apache.

the class RepeatPlugin method invoke.

@Override
public PluginInvoke invoke(final Expression expression, final PluginCallInfo callInfo, final CompilerContext compilerContext) {
    return new DefaultPluginInvoke() {

        private String listVariable = compilerContext.generateVariable("collectionVar");

        private String collectionSizeVar = compilerContext.generateVariable("size");

        @Override
        public void beforeElement(PushStream stream, String tagName) {
            stream.write(new VariableBinding.Start(listVariable, expression.getRoot()));
            stream.write(new VariableBinding.Start(collectionSizeVar, new UnaryOperation(UnaryOperator.LENGTH, new Identifier(listVariable))));
            stream.write(new Conditional.Start(collectionSizeVar, true));
            String itemVariable = decodeItemVariable();
            String loopStatusVar = Syntax.itemLoopStatusVariable(itemVariable);
            String indexVariable = compilerContext.generateVariable("index");
            stream.write(new Loop.Start(listVariable, itemVariable, indexVariable));
            stream.write(new VariableBinding.Start(loopStatusVar, buildStatusObj(indexVariable, collectionSizeVar)));
        }

        @Override
        public void afterTagClose(PushStream stream, boolean isSelfClosing) {
            stream.write(NEW_LINE);
        }

        @Override
        public void afterElement(PushStream stream) {
            stream.write(VariableBinding.END);
            stream.write(Loop.END);
            stream.write(Conditional.END);
            stream.write(VariableBinding.END);
            stream.write(VariableBinding.END);
        }

        private String decodeItemVariable() {
            String[] args = callInfo.getArguments();
            if (args.length > 0) {
                return args[0];
            }
            return Syntax.DEFAULT_LIST_ITEM_VAR_NAME;
        }

        private MapLiteral buildStatusObj(String indexVar, String sizeVar) {
            HashMap<String, ExpressionNode> obj = new HashMap<>();
            Identifier indexId = new Identifier(indexVar);
            BinaryOperation firstExpr = new BinaryOperation(BinaryOperator.EQ, indexId, NumericConstant.ZERO);
            BinaryOperation lastExpr = new BinaryOperation(BinaryOperator.EQ, indexId, new BinaryOperation(BinaryOperator.SUB, new Identifier(sizeVar), NumericConstant.ONE));
            obj.put(INDEX, indexId);
            obj.put(COUNT, new BinaryOperation(BinaryOperator.ADD, indexId, NumericConstant.ONE));
            obj.put(FIRST, firstExpr);
            obj.put(MIDDLE, new UnaryOperation(UnaryOperator.NOT, new BinaryOperation(BinaryOperator.OR, firstExpr, lastExpr)));
            obj.put(LAST, lastExpr);
            obj.put(ODD, parityCheck(indexId, NumericConstant.ZERO));
            obj.put(EVEN, parityCheck(indexId, NumericConstant.ONE));
            return new MapLiteral(obj);
        }

        private ExpressionNode parityCheck(ExpressionNode numericExpression, NumericConstant expected) {
            return new BinaryOperation(BinaryOperator.EQ, new BinaryOperation(BinaryOperator.REM, numericExpression, NumericConstant.TWO), expected);
        }
    };
}

Example 5 with ExpressionNode

use of org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode in project sling by apache.

the class ExpressionWrapperTest method testI18nOptionsRemoval.

@Test
public void testI18nOptionsRemoval() {
    Interpolation interpolation = new Interpolation();
    Map<String, ExpressionNode> options = new HashMap<>();
    options.put(I18nFilter.HINT_OPTION, new StringConstant("hint"));
    options.put(I18nFilter.LOCALE_OPTION, new StringConstant("de"));
    options.put(I18nFilter.I18N_OPTION, NullLiteral.INSTANCE);
    interpolation.addExpression(new Expression(new StringConstant("hello"), options));
    ExpressionWrapper wrapper = new ExpressionWrapper(filters);
    Expression result = wrapper.transform(interpolation, MarkupContext.TEXT, ExpressionContext.TEXT);
    List<ExpressionNode> xssArguments = runOptionsAndXSSAssertions(result, 1);
    RuntimeCall i18n = (RuntimeCall) xssArguments.get(0);
    assertEquals("Expected to I18n runtime function call.", RuntimeFunction.I18N, i18n.getFunctionName());
}