Examples with Type com.google.spanner.v1.Type used on opensource projects

Example 86 with Type

use of com.google.spanner.v1.Type in project java-smt by sosy-lab.

the class CVC4NativeAPITest method checkLIAUfsSat.

@Test
public void checkLIAUfsSat() {
    // f(x) = x + 1
    // f(y) = y - 1
    // x = y -> f(x) + f(y) = x AND f(x) + f(y) = y
    Expr one = exprMgr.mkConst(new Rational(1));
    Type intType = exprMgr.integerType();
    // Type for UFs later
    Type intToInt = exprMgr.mkFunctionType(intType, intType);
    Expr xInt = exprMgr.mkVar("x", intType);
    Expr yInt = exprMgr.mkVar("y", intType);
    // declare UFs
    Expr f = exprMgr.mkVar("f", intToInt);
    // Apply UFs
    Expr fx = exprMgr.mkExpr(Kind.APPLY_UF, f, xInt);
    Expr fy = exprMgr.mkExpr(Kind.APPLY_UF, f, yInt);
    Expr plus = exprMgr.mkExpr(Kind.PLUS, fx, fy);
    Expr plusEqx = exprMgr.mkExpr(Kind.EQUAL, plus, xInt);
    Expr plusEqy = exprMgr.mkExpr(Kind.EQUAL, plus, yInt);
    Expr xEqy = exprMgr.mkExpr(Kind.EQUAL, yInt, xInt);
    Expr xEqyImplplusEqxAndy = exprMgr.mkExpr(Kind.IMPLIES, xEqy, exprMgr.mkExpr(Kind.AND, plusEqx, plusEqy));
    Expr assumptions = exprMgr.mkExpr(Kind.AND, exprMgr.mkExpr(Kind.EQUAL, fx, exprMgr.mkExpr(Kind.PLUS, xInt, one)), exprMgr.mkExpr(Kind.EQUAL, fy, exprMgr.mkExpr(Kind.MINUS, yInt, one)), xEqyImplplusEqxAndy);
    smtEngine.assertFormula(assumptions);
    Result satCheck = smtEngine.checkSat();
    assertThat(satCheck.isSat()).isEqualTo(Sat.SAT);
}

Example 87 with Type

use of com.google.spanner.v1.Type in project java-smt by sosy-lab.

the class CVC4NativeAPITest method checkQuantifierWithUf.

@SuppressWarnings("unused")
@Test
public void checkQuantifierWithUf() throws FileNotFoundException, UnsupportedEncodingException {
    Expr var = exprMgr.mkVar("var", exprMgr.integerType());
    // start with a normal, free variable!
    Expr boundVar = exprMgr.mkVar("boundVar", exprMgr.integerType());
    Expr varIsOne = exprMgr.mkExpr(Kind.EQUAL, var, exprMgr.mkConst(new Rational(1)));
    // try not to use 0 as this is the default value for CVC4 models
    Expr boundVarIsTwo = exprMgr.mkExpr(Kind.EQUAL, boundVar, exprMgr.mkConst(new Rational(2)));
    Expr boundVarIsOne = exprMgr.mkExpr(Kind.EQUAL, boundVar, exprMgr.mkConst(new Rational(1)));
    String func = "func";
    Type intType = exprMgr.integerType();
    Type ufType = exprMgr.mkFunctionType(intType, intType);
    Expr uf = exprMgr.mkVar(func, ufType);
    Expr funcAtBoundVar = exprMgr.mkExpr(uf, boundVar);
    Expr body = exprMgr.mkExpr(Kind.AND, boundVarIsTwo, exprMgr.mkExpr(Kind.EQUAL, var, funcAtBoundVar));
    // This is the bound variable used for boundVar
    Expr boundVarBound = exprMgr.mkBoundVar("boundVar", exprMgr.integerType());
    vectorExpr vec = new vectorExpr();
    vec.add(boundVarBound);
    Expr quantifiedVars = exprMgr.mkExpr(Kind.BOUND_VAR_LIST, vec);
    // Subst all boundVar variables with the bound version
    Expr bodySubst = body.substitute(boundVar, boundVarBound);
    Expr quantFormula = exprMgr.mkExpr(Kind.EXISTS, quantifiedVars, bodySubst);
    // var = 1 & boundVar = 1 & exists boundVar . ( boundVar = 2 & f(boundVar) = var )
    Expr overallFormula = exprMgr.mkExpr(Kind.AND, varIsOne, boundVarIsOne, quantFormula);
    smtEngine.assertFormula(overallFormula);
    Result satCheck = smtEngine.checkSat();
    // SAT
    assertThat(satCheck.isSat()).isEqualTo(Sat.SAT);
    // check Model
    // var = 1 & boundVar = 1 & exists boundVar . ( boundVar = 2 & f(2) = 1 )
    // It seems like CVC4 can't return quantified variables,
    // therefore we can't get a value for the uf!
    assertThat(smtEngine.getValue(var).toString()).isEqualTo("1");
    assertThat(smtEngine.getValue(boundVar).toString()).isEqualTo("1");
    assertThat(smtEngine.getValue(funcAtBoundVar).toString()).isEqualTo("1");
    assertThat(smtEngine.getValue(boundVarBound).toString()).isEqualTo("boundVar");
}

Example 88 with Type

use of com.google.spanner.v1.Type in project java-smt by sosy-lab.

the class CVC4NativeAPITest method checkCustomTypesAndUFs.

@Test
public void checkCustomTypesAndUFs() {
    // 0 <= f(x)
    // 0 <= f(y)
    // f(x) + f(y) <= 1
    // not p(0)
    // p(f(y))
    Expr zero = exprMgr.mkConst(new Rational(0));
    Expr one = exprMgr.mkConst(new Rational(1));
    Type boolType = exprMgr.booleanType();
    Type intType = exprMgr.integerType();
    // You may use custom sorts just like bool or int
    SortType mySort = exprMgr.mkSort("f");
    // Type for UFs later
    Type mySortToInt = exprMgr.mkFunctionType(mySort, intType);
    Type intToBool = exprMgr.mkFunctionType(intType, boolType);
    Expr xTyped = exprMgr.mkVar("x", mySort);
    Expr yTyped = exprMgr.mkVar("y", mySort);
    // declare UFs
    Expr f = exprMgr.mkVar("f", mySortToInt);
    Expr p = exprMgr.mkVar("p", intToBool);
    // Apply UFs
    Expr fx = exprMgr.mkExpr(Kind.APPLY_UF, f, xTyped);
    Expr fy = exprMgr.mkExpr(Kind.APPLY_UF, f, yTyped);
    Expr sum = exprMgr.mkExpr(Kind.PLUS, fx, fy);
    Expr p0 = exprMgr.mkExpr(Kind.APPLY_UF, p, zero);
    Expr pfy = exprMgr.mkExpr(Kind.APPLY_UF, p, fy);
    // Make some assumptions
    Expr assumptions = exprMgr.mkExpr(Kind.AND, exprMgr.mkExpr(Kind.LEQ, zero, fx), exprMgr.mkExpr(Kind.LEQ, zero, fy), exprMgr.mkExpr(Kind.LEQ, sum, one), p0.notExpr(), pfy);
    smtEngine.assertFormula(assumptions);
    Result satCheck = smtEngine.checkSat();
    assertThat(satCheck.isSat()).isEqualTo(Sat.SAT);
}

Example 89 with Type

use of com.google.spanner.v1.Type in project openwebbeans by apache.

the class SubclassProxyFactory method delegateNonInterceptedMethods.

@Override
protected void delegateNonInterceptedMethods(ClassLoader classLoader, ClassWriter cw, String proxyClassFileName, Class<?> classToProxy, Method[] noninterceptedMethods) throws ProxyGenerationException {
    for (Method delegatedMethod : noninterceptedMethods) {
        if (unproxyableMethod(delegatedMethod)) {
            continue;
        }
        String methodDescriptor = Type.getMethodDescriptor(delegatedMethod);
        // X TODO handle generic exception types?
        Class[] exceptionTypes = delegatedMethod.getExceptionTypes();
        String[] exceptionTypeNames = new String[exceptionTypes.length];
        for (int i = 0; i < exceptionTypes.length; i++) {
            exceptionTypeNames[i] = Type.getType(exceptionTypes[i]).getInternalName();
        }
        int targetModifiers = delegatedMethod.getModifiers() & (Modifier.PROTECTED | Modifier.PUBLIC | MODIFIER_VARARGS);
        MethodVisitor mv = cw.visitMethod(targetModifiers, delegatedMethod.getName(), methodDescriptor, null, exceptionTypeNames);
        // fill method body
        mv.visitCode();
        boolean abstractMethod = Modifier.isAbstract(delegatedMethod.getModifiers());
        // now calculate the parameters
        int offset = 1;
        for (Class<?> aClass : delegatedMethod.getParameterTypes()) {
            Type type = Type.getType(aClass);
            mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), offset);
            offset += type.getSize();
        }
        // and finally invoke the target method on the provided Contextual Instance
        Type declaringClass = Type.getType(delegatedMethod.getDeclaringClass());
        if (!abstractMethod) {
            // invoke the method on the super class;
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, declaringClass.getInternalName(), delegatedMethod.getName(), methodDescriptor, false);
        }
        generateReturn(mv, delegatedMethod);
        mv.visitMaxs(-1, -1);
        mv.visitEnd();
    }
}

Example 90 with Type

use of com.google.spanner.v1.Type in project openwebbeans by apache.

the class InterceptorDecoratorProxyFactory method delegateNonInterceptedMethods.

/**
 * Directly delegate all non intercepted nor decorated methods to the internal instance.
 *
 * @param noninterceptedMethods all methods which are neither intercepted nor decorated
 */
@Override
protected void delegateNonInterceptedMethods(ClassLoader classLoader, ClassWriter cw, String proxyClassFileName, Class<?> classToProxy, Method[] noninterceptedMethods) {
    for (Method delegatedMethod : noninterceptedMethods) {
        if (unproxyableMethod(delegatedMethod) || isIgnoredMethod(delegatedMethod)) {
            continue;
        }
        int modifiers = delegatedMethod.getModifiers();
        if (Modifier.isProtected(modifiers) && !delegatedMethod.getDeclaringClass().getPackage().getName().equals(classToProxy.getPackage().getName())) {
            continue;
        }
        String methodDescriptor = Type.getMethodDescriptor(delegatedMethod);
        // X TODO handle generic exception types?
        Class[] exceptionTypes = delegatedMethod.getExceptionTypes();
        String[] exceptionTypeNames = new String[exceptionTypes.length];
        for (int i = 0; i < exceptionTypes.length; i++) {
            exceptionTypeNames[i] = Type.getType(exceptionTypes[i]).getInternalName();
        }
        int targetModifiers = modifiers & (Modifier.PROTECTED | Modifier.PUBLIC | MODIFIER_VARARGS);
        MethodVisitor mv = cw.visitMethod(targetModifiers, delegatedMethod.getName(), methodDescriptor, null, exceptionTypeNames);
        // fill method body
        mv.visitCode();
        // load the delegate variable
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_PROXIED_INSTANCE, Type.getDescriptor(classToProxy));
        int offset = 1;
        for (Class<?> aClass : delegatedMethod.getParameterTypes()) {
            Type type = Type.getType(aClass);
            mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), offset);
            offset += type.getSize();
        }
        Type declaringClass = Type.getType(delegatedMethod.getDeclaringClass());
        boolean isItf = delegatedMethod.getDeclaringClass().isInterface();
        mv.visitMethodInsn(isItf ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, declaringClass.getInternalName(), delegatedMethod.getName(), methodDescriptor, isItf);
        generateReturn(mv, delegatedMethod);
        mv.visitMaxs(-1, -1);
        mv.visitEnd();
    }
}