Examples with And org.mvel2.ast.And used on opensource projects

Example 46 with And

use of org.mvel2.ast.And in project mvel by mvel.

the class CoreConfidenceTests method testJIRA209.

public void testJIRA209() {
    Map vars = new LinkedHashMap();
    vars.put("bal", new BigDecimal("999.99"));
    String[] testCases = { // "bal < 100 || bal > 200",
    "bal > 200 or bal < 100", "bal > 200 || bal < 100", "bal < 100 and bal > 200", "bal < 100 && bal > 200", "bal > 200 and bal < 100", "bal > 200 && bal < 100" };
    Object val1, val2;
    for (String expr : testCases) {
        System.out.println("Evaluating '" + expr + "': ......");
        val1 = MVEL.eval(expr, vars);
        assertNotNull(val1);
        Serializable compiled = MVEL.compileExpression(expr);
        val2 = executeExpression(compiled, vars);
        assertNotNull(val2);
        assertEquals("expression did not evaluate correctly: " + expr, val1, val2);
    }
}

Example 47 with And

use of org.mvel2.ast.And in project mvel by mvel.

the class CoreConfidenceTests method testConstructor.

public void testConstructor() {
    String ex = " TestHelper.method(new Person('bob', 30), new Person('mark', 40, 999, 55, 10));\n";
    ParserContext ctx = new ParserContext();
    ctx.setStrongTyping(true);
    ctx.addImport(TestHelper.class);
    ctx.addImport(Person.class);
    // string and then executing the wrong constructor on the Person class
    try {
        MVEL.compileExpression(ex, ctx);
        fail("Constructor should not have been found.");
    } catch (CompileException e) {
    // yay.
    }
// fail( "The Person constructor used in the expression does not exist, so an error should have been raised during compilation." );
}

Example 48 with And

use of org.mvel2.ast.And in project mvel by mvel.

the class MVELInterpretedRuntime method procBooleanOperator.

private int procBooleanOperator(int operator) {
    switch(operator) {
        case RETURN:
            return RETURN;
        case NOOP:
            return -2;
        case AND:
            reduceRight();
            if (!stk.peekBoolean()) {
                if (unwindStatement(operator)) {
                    return -1;
                } else {
                    stk.clear();
                    return OP_RESET_FRAME;
                }
            } else {
                stk.discard();
                return OP_RESET_FRAME;
            }
        case OR:
            reduceRight();
            if (stk.peekBoolean()) {
                if (unwindStatement(operator)) {
                    return OP_TERMINATE;
                } else {
                    stk.clear();
                    return OP_RESET_FRAME;
                }
            } else {
                stk.discard();
                return OP_RESET_FRAME;
            }
        case CHOR:
            if (!BlankLiteral.INSTANCE.equals(stk.peek())) {
                return OP_TERMINATE;
            }
            break;
        case TERNARY:
            if (!stk.popBoolean()) {
                stk.clear();
                ASTNode tk;
                for (; ; ) {
                    if ((tk = nextToken()) == null || tk.isOperator(Operator.TERNARY_ELSE))
                        break;
                }
            }
            return OP_RESET_FRAME;
        case TERNARY_ELSE:
            captureToEOS();
            return OP_RESET_FRAME;
        case END_OF_STMT:
            if (hasMore()) {
                holdOverRegister = stk.pop();
                stk.clear();
            }
            return OP_RESET_FRAME;
    }
    return OP_CONTINUE;
}

Example 49 with And

use of org.mvel2.ast.And in project mvel by mvel.

the class JSRInlinerAdapter method visitJumpInsn.

/**
 * Detects a JSR instruction and sets a flag to indicate we will need to do
 * inlining.
 */
@Override
public void visitJumpInsn(final int opcode, final Label lbl) {
    super.visitJumpInsn(opcode, lbl);
    LabelNode ln = ((JumpInsnNode) instructions.getLast()).label;
    if (opcode == JSR && !subroutineHeads.containsKey(ln)) {
        subroutineHeads.put(ln, new BitSet());
    }
}

Example 50 with And

use of org.mvel2.ast.And in project mvel by mvel.

the class JSRInlinerAdapter method emitSubroutine.

/**
 * Emits one instantiation of one subroutine, specified by
 * <code>instant</code>. May add new instantiations that are invoked by this
 * one to the <code>worklist</code> parameter, and new try/catch blocks to
 * <code>newTryCatchBlocks</code>.
 *
 * @param instant
 *            the instantiation that must be performed.
 * @param worklist
 *            list of the instantiations that remain to be done.
 * @param newInstructions
 *            the instruction list to which the instantiated code must be
 *            appended.
 * @param newTryCatchBlocks
 *            the exception handler list to which the instantiated handlers
 *            must be appended.
 */
private void emitSubroutine(final Instantiation instant, final List<Instantiation> worklist, final InsnList newInstructions, final List<TryCatchBlockNode> newTryCatchBlocks, final List<LocalVariableNode> newLocalVariables) {
    LabelNode duplbl = null;
    if (LOGGING) {
        log("--------------------------------------------------------");
        log("Emitting instantiation of subroutine " + instant.subroutine);
    }
    // labels and jump targets as we go:
    for (int i = 0, c = instructions.size(); i < c; i++) {
        AbstractInsnNode insn = instructions.get(i);
        Instantiation owner = instant.findOwner(i);
        // Always remap labels:
        if (insn.getType() == AbstractInsnNode.LABEL) {
            // Translate labels into their renamed equivalents.
            // Avoid adding the same label more than once. Note
            // that because we own this instruction the gotoTable
            // and the rangeTable will always agree.
            LabelNode ilbl = (LabelNode) insn;
            LabelNode remap = instant.rangeLabel(ilbl);
            if (LOGGING) {
                // TODO use of default toString().
                log("Translating lbl #" + i + ':' + ilbl + " to " + remap);
            }
            if (remap != duplbl) {
                newInstructions.add(remap);
                duplbl = remap;
            }
            continue;
        }
        // that do not invoke each other.
        if (owner != instant) {
            continue;
        }
        if (LOGGING) {
            log("Emitting inst #" + i);
        }
        if (insn.getOpcode() == RET) {
            // Translate RET instruction(s) to a jump to the return label
            // for the appropriate instantiation. The problem is that the
            // subroutine may "fall through" to the ret of a parent
            // subroutine; therefore, to find the appropriate ret label we
            // find the lowest subroutine on the stack that claims to own
            // this instruction. See the class javadoc comment for an
            // explanation on why this technique is safe (note: it is only
            // safe if the input is verifiable).
            LabelNode retlabel = null;
            for (Instantiation p = instant; p != null; p = p.previous) {
                if (p.subroutine.get(i)) {
                    retlabel = p.returnLabel;
                }
            }
            if (retlabel == null) {
                // code.
                throw new RuntimeException("Instruction #" + i + " is a RET not owned by any subroutine");
            }
            newInstructions.add(new JumpInsnNode(GOTO, retlabel));
        } else if (insn.getOpcode() == JSR) {
            LabelNode lbl = ((JumpInsnNode) insn).label;
            BitSet sub = subroutineHeads.get(lbl);
            Instantiation newinst = new Instantiation(instant, sub);
            LabelNode startlbl = newinst.gotoLabel(lbl);
            if (LOGGING) {
                log(" Creating instantiation of subr " + sub);
            }
            // Rather than JSRing, we will jump to the inline version and
            // push NULL for what was once the return value. This hack
            // allows us to avoid doing any sort of data flow analysis to
            // figure out which instructions manipulate the old return value
            // pointer which is now known to be unneeded.
            newInstructions.add(new InsnNode(ACONST_NULL));
            newInstructions.add(new JumpInsnNode(GOTO, startlbl));
            newInstructions.add(newinst.returnLabel);
            // Insert this new instantiation into the queue to be emitted
            // later.
            worklist.add(newinst);
        } else {
            newInstructions.add(insn.clone(instant));
        }
    }
    // Emit try/catch blocks that are relevant to this method.
    for (Iterator<TryCatchBlockNode> it = tryCatchBlocks.iterator(); it.hasNext(); ) {
        TryCatchBlockNode trycatch = it.next();
        if (LOGGING) {
            // TODO use of default toString().
            log("try catch block original labels=" + trycatch.start + '-' + trycatch.end + "->" + trycatch.handler);
        }
        final LabelNode start = instant.rangeLabel(trycatch.start);
        final LabelNode end = instant.rangeLabel(trycatch.end);
        // Ignore empty try/catch regions
        if (start == end) {
            if (LOGGING) {
                log(" try catch block empty in this subroutine");
            }
            continue;
        }
        final LabelNode handler = instant.gotoLabel(trycatch.handler);
        if (LOGGING) {
            // TODO use of default toString().
            log(" try catch block new labels=" + start + '-' + end + "->" + handler);
        }
        if (start == null || end == null || handler == null) {
            throw new RuntimeException("Internal error!");
        }
        newTryCatchBlocks.add(new TryCatchBlockNode(start, end, handler, trycatch.type));
    }
    for (Iterator<LocalVariableNode> it = localVariables.iterator(); it.hasNext(); ) {
        LocalVariableNode lvnode = it.next();
        if (LOGGING) {
            log("local var " + lvnode.name);
        }
        final LabelNode start = instant.rangeLabel(lvnode.start);
        final LabelNode end = instant.rangeLabel(lvnode.end);
        if (start == end) {
            if (LOGGING) {
                log("  local variable empty in this sub");
            }
            continue;
        }
        newLocalVariables.add(new LocalVariableNode(lvnode.name, lvnode.desc, lvnode.signature, start, end, lvnode.index));
    }
}