Package com.facebook.presto.spi.type

Examples of com.facebook.presto.spi.type.Type

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    }

    @Override
    protected ByteCodeNode visitIsNullPredicate(IsNullPredicate node, CompilerContext context)
    {
        Type valueType = expressionTypes.get(node.getValue());
        if (valueType.equals(UNKNOWN)) {
            return loadBoolean(true);
        }

        ByteCodeNode value = process(node.getValue(), context);

        // evaluate the expression, pop the produced value, and load the null flag
        Block block = new Block(context)
                .comment(node.toString())
                .append(value)
                .pop(valueType.getJavaType())
                .getVariable("wasNull");

        // clear the null flag
        block.putVariable("wasNull", false);
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    }

    @Override
    protected ByteCodeNode visitSearchedCaseExpression(SearchedCaseExpression node, final CompilerContext context)
    {
        Type type = expressionTypes.get(node);
        ByteCodeNode elseValue;
        if (node.getDefaultValue() != null) {
            elseValue = process(node.getDefaultValue(), context);
        }
        else {
            elseValue = typedNull(context, type.getJavaType());
        }

        List<TypedWhenClause> whenClauses = ImmutableList.copyOf(transform(node.getWhenClauses(), new Function<WhenClause, TypedWhenClause>()
        {
            @Override
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    @Override
    protected ByteCodeNode visitSimpleCaseExpression(SimpleCaseExpression node, final CompilerContext context)
    {
        // process value, else, and all when clauses
        ByteCodeNode value = process(node.getOperand(), context);
        Type type = expressionTypes.get(node);
        ByteCodeNode elseValue;
        if (node.getDefaultValue() != null) {
            elseValue = process(node.getDefaultValue(), context);
        }
        else {
            elseValue = typedNull(context, type.getJavaType());
        }

        List<TypedWhenClause> whenClauses = ImmutableList.copyOf(transform(node.getWhenClauses(), new Function<WhenClause, TypedWhenClause>()
        {
            @Override
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    @Override
    protected ByteCodeNode visitNullIfExpression(NullIfExpression node, CompilerContext context)
    {
        ByteCodeNode first = process(node.getFirst(), context);
        ByteCodeNode second = process(node.getSecond(), context);
        Type firstType = expressionTypes.get(node.getFirst());
        Type secondType = expressionTypes.get(node.getSecond());

        LabelNode notMatch = new LabelNode("notMatch");

        // push first arg on the stack
        Block block = new Block(context)
                .comment(node.toString())
                .append(first)
                .append(ifWasNullPopAndGoto(context, notMatch, void.class));

        // this is a hack! We shouldn't be determining type coercions at this point, but there's no way
        // around it in the current expression AST
        Type commonType = FunctionRegistry.getCommonSuperType(firstType, secondType).get();

        FunctionBinding castFirst = bootstrapFunctionBinder.bindCastOperator(
                getSessionByteCode,
                new Block(context).dup(firstType.getJavaType()),
                firstType,
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        for (Expression test : valueList.getValues()) {
            ByteCodeNode testNode = process(test, context);
            values.add(testNode);
        }

        Type type = expressionTypes.get(node.getValue());
        Class<?> javaType = type.getJavaType();

        FunctionBinding hashCodeFunction = bootstrapFunctionBinder.bindOperator(
                OperatorType.HASH_CODE,
                getSessionByteCode,
                ImmutableList.<ByteCodeNode>of(NOP),
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        Block block = new Block(context)
                .comment("check if first arg is null")
                .append(generatorContext.generate(first))
                .append(ByteCodeUtils.ifWasNullPopAndGoto(context, notMatch, void.class));

        Type firstType = first.getType();
        Type secondType = second.getType();

        // this is a hack! We shouldn't be determining type coercions at this point, but there's no way
        // around it in the current expression AST
        Type commonType = FunctionRegistry.getCommonSuperType(firstType, secondType).get();

        FunctionBinding castFirst = generatorContext.getBootstrapBinder().bindCastOperator(
                generatorContext.generateGetSession(),
                new Block(context).dup(firstType.getJavaType()),
                firstType,
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        CompilerContext context = generator.getContext();

        RowExpression left = arguments.get(0);
        RowExpression right = arguments.get(1);

        Type leftType = left.getType();
        Type rightType = right.getType();

        FunctionBinding functionBinding = generator.getBootstrapBinder().bindOperator(
                OperatorType.EQUAL,
                generator.generateGetSession(),
                ImmutableList.<ByteCodeNode>of(NOP, NOP),
                ImmutableList.of(leftType, rightType));

        ByteCodeNode equalsCall = new Block(context).comment("equals(%s, %s)", leftType, rightType)
                .invokeDynamic(functionBinding.getName(), functionBinding.getCallSite().type(), functionBinding.getBindingId());

        Block block = new Block(context)
                .comment("IS DISTINCT FROM")
                .comment("left")
                .append(generator.generate(left))
                .append(new IfStatement(context,
                        new Block(context).getVariable("wasNull"),
                        new Block(context)
                                .pop(leftType.getJavaType())
                                .putVariable("wasNull", false)
                                .comment("right is not null")
                                .append(generator.generate(right))
                                .pop(rightType.getJavaType())
                                .getVariable("wasNull")
                                .invokeStatic(CompilerOperations.class, "not", boolean.class, boolean.class),
                        new Block(context)
                                .comment("right")
                                .append(generator.generate(right))
                                .append(new IfStatement(context,
                                        new Block(context).getVariable("wasNull"),
                                        new Block(context)
                                                .pop(leftType.getJavaType())
                                                .pop(rightType.getJavaType())
                                                .push(true),
                                        new Block(context)
                                                .append(equalsCall)
                                                .invokeStatic(CompilerOperations.class, "not", boolean.class, boolean.class)))))
                .putVariable("wasNull", false);
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                    if (value == null) {
                        row.add(null);
                        continue;
                    }

                    Type type = types.get(i);
                    if (BOOLEAN.equals(type)) {
                        row.add(value);
                    }
                    else if (BIGINT.equals(type)) {
                        row.add(((Number) value).longValue());
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        {
            @Override
            public Type apply(Column column)
            {
                String typeName = column.getType();
                Type type = prestoServer.getMetadata().getType(typeName);
                if (type == null) {
                    throw new AssertionError("Unhandled type: " + typeName);
                }
                return type;
            }
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        for (int i = 1; i < arguments.size(); i++) {
            ByteCodeNode testNode = generatorContext.generate(arguments.get(i));
            valuesByteCode.add(testNode);
        }

        Type type = arguments.get(0).getType();
        Class<?> javaType = type.getJavaType();

        FunctionBinding hashCodeFunction = generatorContext.getBootstrapBinder().bindOperator(
                OperatorType.HASH_CODE,
                generatorContext.generateGetSession(),
                ImmutableList.<ByteCodeNode>of(NOP),
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