Examples with Node com.github.javaparser.ast.Node used on opensource projects

Example 41 with Node

use of com.github.javaparser.ast.Node in project drools by kiegroup.

the class FlattenScopeTest method expr.

private Expression expr(String inputExpr) {
    Expression expr = DrlxParseUtil.parseExpression(inputExpr).getExpr();
    // This is because parsing doesn't set type arguments.
    expr.ifMethodCallExpr(m -> m.setTypeArguments(nodeList()));
    expr.getChildNodes().forEach((Node e) -> {
        if (e instanceof Expression) {
            ((Expression) e).ifMethodCallExpr(m -> m.setTypeArguments(nodeList()));
        }
    });
    return expr;
}

Example 42 with Node

use of com.github.javaparser.ast.Node in project drools by kiegroup.

the class FlattenScopeTest method flattenUnaryExpression.

@Test
public void flattenUnaryExpression() {
    List<Node> actual = flattenScope(MockTypeResolver.INSTANCE, expr("getMessageId"));
    List<Node> expected = Collections.singletonList(new NameExpr("getMessageId"));
    compareArrays(actual, expected);
}

Example 43 with Node

use of com.github.javaparser.ast.Node in project drools by kiegroup.

the class ModifyCompiler method compile.

public CompiledBlockResult compile(String mvelBlock) {
    BlockStmt mvelExpression = MvelParser.parseBlock(mvelBlock);
    preprocessPhase.removeEmptyStmt(mvelExpression);
    Set<String> usedBindings = new HashSet<>();
    mvelExpression.findAll(ModifyStatement.class).forEach(s -> {
        Optional<Node> parentNode = s.getParentNode();
        PreprocessPhase.PreprocessPhaseResult invoke = preprocessPhase.invoke(s);
        usedBindings.addAll(invoke.getUsedBindings());
        parentNode.ifPresent(p -> {
            BlockStmt parentBlock = (BlockStmt) p;
            for (String modifiedFact : invoke.getUsedBindings()) {
                parentBlock.addStatement(new MethodCallExpr(null, "update", nodeList(new NameExpr(modifiedFact))));
            }
        });
        s.remove();
    });
    return new CompiledBlockResult(mvelExpression.getStatements()).setUsedBindings(usedBindings);
}

Example 44 with Node

use of com.github.javaparser.ast.Node in project drools by kiegroup.

the class StatementVisitor method compileMVEL.

private TypedExpression compileMVEL(Node n) {
    TypedExpression rhs = new RHSPhase(mvelCompilerContext).invoke(n);
    TypedExpression lhs = new LHSPhase(mvelCompilerContext, ofNullable(rhs)).invoke(n);
    Optional<TypedExpression> postProcessedRHS = new ReProcessRHSPhase(mvelCompilerContext).invoke(rhs, lhs);
    TypedExpression postProcessedLHS = postProcessedRHS.map(ppr -> new LHSPhase(mvelCompilerContext, of(ppr)).invoke(n)).orElse(lhs);
    return postProcessedLHS;
}

Example 45 with Node

use of com.github.javaparser.ast.Node in project drools by kiegroup.

the class MvelCompiler method compileStatement.

public CompiledBlockResult compileStatement(String mvelBlock) {
    BlockStmt mvelExpression = MvelParser.parseBlock(mvelBlock);
    preprocessPhase.removeEmptyStmt(mvelExpression);
    Set<String> allUsedBindings = new HashSet<>();
    List<String> modifyUsedBindings = mvelExpression.findAll(ModifyStatement.class).stream().flatMap(this::transformStatementWithPreprocessing).collect(toList());
    List<String> withUsedBindings = mvelExpression.findAll(WithStatement.class).stream().flatMap(this::transformStatementWithPreprocessing).collect(toList());
    allUsedBindings.addAll(modifyUsedBindings);
    allUsedBindings.addAll(withUsedBindings);
    // Entry point of the compiler
    TypedExpression compiledRoot = mvelExpression.accept(statementVisitor, null);
    allUsedBindings.addAll(mvelCompilerContext.getUsedBindings());
    Node javaRoot = compiledRoot.toJavaExpression();
    if (!(javaRoot instanceof BlockStmt)) {
        throw new MvelCompilerException("With a BlockStmt as a input I was expecting a BlockStmt output");
    }
    BlockStmt compiledBlockStatement = (BlockStmt) javaRoot;
    return new CompiledBlockResult(compiledBlockStatement.getStatements()).setUsedBindings(allUsedBindings);
}