Examples with Local com.googlecode.dex2jar.ir.expr.Local used on opensource projects

Example 11 with Local

use of com.googlecode.dex2jar.ir.expr.Local in project dex2jar by pxb1988.

the class SSATransformer method cleanTagsAndReIndex.

private void cleanTagsAndReIndex(IrMethod method) {
    int i = 0;
    for (Local local : method.locals) {
        local.tag = null;
        local._ls_index = i++;
    }
}

Example 12 with Local

use of com.googlecode.dex2jar.ir.expr.Local in project dex2jar by pxb1988.

the class UnSSATransformer method insertAssignPath.

private void insertAssignPath(IrMethod method, Collection<LabelStmt> phiLabels) {
    // FIXME the phi in Exception handler is buggy
    List<AssignStmt> buff = new ArrayList<>();
    for (LabelStmt labelStmt : phiLabels) {
        List<AssignStmt> phis = (List<AssignStmt>) labelStmt.phis;
        LiveV[] frame = (LiveV[]) labelStmt.frame;
        for (Stmt from : labelStmt._cfg_froms) {
            if (from.visited) {
                // at lease it is reached by cfg
                for (AssignStmt phi : phis) {
                    Local a = (Local) phi.getOp1();
                    LiveV v = frame[a._ls_index];
                    Local local = v.stmt2regMap.get(from);
                    if (local != a) {
                        buff.add(Stmts.nAssign(a, local));
                    }
                }
                insertAssignPath(method.stmts, from, labelStmt, buff);
                buff.clear();
            }
        }
    }
}

Example 13 with Local

use of com.googlecode.dex2jar.ir.expr.Local in project dex2jar by pxb1988.

the class ZeroTransformer method transformReportChanged.

@Override
public boolean transformReportChanged(IrMethod method) {
    boolean changed = false;
    List<AssignStmt> assignStmtList = new ArrayList<>();
    for (Stmt p = method.stmts.getFirst(); p != null; p = p.getNext()) {
        if (p.st == Stmt.ST.ASSIGN) {
            AssignStmt as = (AssignStmt) p;
            if (as.getOp1().vt == Value.VT.LOCAL && as.getOp2().vt == Value.VT.CONSTANT) {
                Constant cst = (Constant) as.getOp2();
                Object value = cst.value;
                if (value instanceof Number && !((value instanceof Long) || (value instanceof Double))) {
                    int v = ((Number) value).intValue();
                    if (v == 0 || v == 1) {
                        assignStmtList.add(as);
                    }
                }
            }
        }
    }
    if (assignStmtList.size() == 0) {
        return false;
    }
    List<LabelStmt> phiLabels = method.phiLabels;
    if (phiLabels != null) {
        for (AssignStmt as : assignStmtList) {
            Local local = (Local) as.getOp1();
            boolean first = true;
            for (LabelStmt labelStmt : phiLabels) {
                for (AssignStmt phi : labelStmt.phis) {
                    Value[] vs = phi.getOp2().getOps();
                    for (int i = 0; i < vs.length; i++) {
                        Value v = vs[i];
                        if (v == local) {
                            if (first) {
                                first = false;
                            } else {
                                Local nLocal = Exprs.nLocal(-1);
                                method.locals.add(nLocal);
                                changed = true;
                                method.stmts.insertBefore(as, Stmts.nAssign(nLocal, as.getOp2().clone()));
                                vs[i] = nLocal;
                            }
                        }
                    }
                }
            }
        }
    }
    return changed;
}

Example 14 with Local

use of com.googlecode.dex2jar.ir.expr.Local in project dex2jar by pxb1988.

the class AggTransformerTest method t002.

@Test
public void t002() {
    Local a = addLocal("a");
    Local b = addLocal("b");
    Local c = addLocal("c");
    addStmt(nAssign(a, nNewIntArray(nInt(5))));
    addStmt(nAssign(b, nInt(2)));
    addStmt(nAssign(c, nArray(a, b, "I")));
    addStmt(nReturn(c));
    transform();
    Assert.assertTrue(stmts.getSize() == 1);
    Assert.assertTrue(locals.size() == 0);
}

Example 15 with Local

use of com.googlecode.dex2jar.ir.expr.Local in project dex2jar by pxb1988.

the class AggTransformerTest method test05.

@Test
public void test05() {
    String sbType = "Ljava/lang/StringBuilder;";
    String sType = "Ljava/lang/String;";
    Local b = addLocal("b");
    Local ex = addLocal("ex");
    Local c = addLocal("c");
    Local d = addLocal("d");
    Local e = addLocal("e");
    Local cst = addLocal("cst");
    addStmt(nAssign(b, nString("123")));
    addStmt(nAssign(c, Exprs.nInvokeNew(new Value[0], new String[0], sbType)));
    addStmt(nAssign(d, c));
    addStmt(nAssign(cst, nString("p1")));
    addStmt(nAssign(c, Exprs.nInvokeVirtual(new Value[] { d, cst }, sbType, "append", new String[] { sType }, sbType)));
    addStmt(nAssign(e, c));
    addStmt(nAssign(cst, nString("p2")));
    addStmt(nAssign(c, Exprs.nInvokeVirtual(new Value[] { e, cst }, sbType, "append", new String[] { sType }, sbType)));
    addStmt(nAssign(c, Exprs.nInvokeVirtual(new Value[] { c }, sbType, "toString", new String[0], sType)));
    addStmt(nReturn(c));
    new SSATransformer().transform(method);
    transform();
    Assert.assertTrue(stmts.getSize() == 1);
    Assert.assertTrue(locals.size() == 0);
}