Examples with ASTIterator org.mvel2.util.ASTIterator used on opensource projects

Example 1 with ASTIterator

use of org.mvel2.util.ASTIterator in project mvel by mikebrock.

the class DebugTools method decompile.

private static String decompile(CompiledExpression cExp, boolean nest, DecompileContext context) {
    ASTIterator iter = new ASTLinkedList(cExp.getFirstNode());
    ASTNode tk;
    StringBuffer sbuf = new StringBuffer();
    if (!nest) {
        sbuf.append("Expression Decompile\n-------------\n");
    }
    while (iter.hasMoreNodes()) {
        sbuf.append("(").append(context.node++).append(") ");
        if ((tk = iter.nextNode()) instanceof NestedStatement && ((NestedStatement) tk).getNestedStatement() instanceof CompiledExpression) {
            //noinspection StringConcatenationInsideStringBufferAppend
            sbuf.append("NEST [" + tk.getClass().getSimpleName() + "]: { " + tk.getName() + " }\n");
            sbuf.append(decompile((CompiledExpression) ((NestedStatement) tk).getNestedStatement(), true, context));
        }
        if (tk instanceof Substatement && ((Substatement) tk).getStatement() instanceof CompiledExpression) {
            //noinspection StringConcatenationInsideStringBufferAppend
            sbuf.append("NEST [" + tk.getClass().getSimpleName() + "]: { " + tk.getName() + " }\n");
            sbuf.append(decompile((CompiledExpression) ((Substatement) tk).getStatement(), true, context));
        } else //            }
        if (tk.isDebuggingSymbol()) {
            //noinspection StringConcatenationInsideStringBufferAppend
            sbuf.append("DEBUG_SYMBOL :: " + tk.toString());
        } else if (tk.isLiteral()) {
            sbuf.append("LITERAL :: ").append(tk.getLiteralValue()).append("'");
        } else if (tk.isOperator()) {
            sbuf.append("OPERATOR [").append(getOperatorName(tk.getOperator())).append("]: ").append(tk.getName());
            if (tk.isOperator(Operator.END_OF_STMT))
                sbuf.append("\n");
        } else if (tk.isIdentifier()) {
            sbuf.append("REFERENCE :: ").append(tk.getClass().getSimpleName()).append(":").append(tk.getName());
        } else if (tk instanceof BinaryOperation) {
            BinaryOperation bo = (BinaryOperation) tk;
            sbuf.append("OPERATION [" + getOperatorName(bo.getOperation()) + "] {").append(bo.getLeft().getName()).append("} {").append(bo.getRight().getName()).append("}");
        } else {
            //noinspection StringConcatenationInsideStringBufferAppend
            sbuf.append("NODE [" + tk.getClass().getSimpleName() + "] :: " + tk.getName());
        }
        sbuf.append("\n");
    }
    sbuf.append("==END==");
    return sbuf.toString();
}

Example 2 with ASTIterator

use of org.mvel2.util.ASTIterator in project mvel by mikebrock.

the class DebugTools method determineType.

public static Class determineType(String name, CompiledExpression compiledExpression) {
    ASTIterator iter = new ASTLinkedList(compiledExpression.getFirstNode());
    ASTNode node;
    while (iter.hasMoreNodes()) {
        if (name.equals((node = iter.nextNode()).getName()) && node.isAssignment()) {
            return node.getEgressType();
        }
    }
    return null;
}