Examples with Parameter com.facebook.presto.bytecode.Parameter used on opensource projects

Example 81 with Parameter

use of com.facebook.presto.bytecode.Parameter in project presto by prestodb.

the class VarArgsToArrayAdapterGenerator method generateVarArgsToArrayAdapter.

public static VarArgMethodHandle generateVarArgsToArrayAdapter(Class<?> returnType, Class<?> javaType, int argsLength, MethodHandle function) {
    requireNonNull(returnType, "returnType is null");
    requireNonNull(javaType, "javaType is null");
    requireNonNull(function, "function is null");
    checkCondition(argsLength <= 254, NOT_SUPPORTED, "Too many arguments for vararg function");
    MethodType methodType = function.type();
    Class<?> javaArrayType = toArrayClass(javaType);
    checkArgument(methodType.returnType() == returnType, "returnType does not match");
    checkArgument(methodType.parameterList().equals(ImmutableList.of(javaArrayType)), "parameter types do not match");
    CallSiteBinder callSiteBinder = new CallSiteBinder();
    ClassDefinition classDefinition = new ClassDefinition(a(PUBLIC, FINAL), makeClassName("VarArgsToListAdapter"), type(Object.class));
    classDefinition.declareDefaultConstructor(a(PRIVATE));
    // generate adapter method
    ImmutableList.Builder<Parameter> parameterListBuilder = ImmutableList.builder();
    for (int i = 0; i < argsLength; i++) {
        parameterListBuilder.add(arg("input_" + i, javaType));
    }
    ImmutableList<Parameter> parameterList = parameterListBuilder.build();
    MethodDefinition methodDefinition = classDefinition.declareMethod(a(PUBLIC, STATIC), "varArgsToArray", type(returnType), parameterList);
    BytecodeBlock body = methodDefinition.getBody();
    body.append(loadConstant(callSiteBinder, function, MethodHandle.class).invoke("invokeExact", returnType, BytecodeExpressions.newArray(ParameterizedType.type(javaArrayType), parameterList)).ret());
    // define class
    Class<?> generatedClass = defineClass(classDefinition, Object.class, callSiteBinder.getBindings(), VarArgsToArrayAdapterGenerator.class.getClassLoader());
    return new VarArgMethodHandle(Reflection.methodHandle(generatedClass, "varArgsToArray", ImmutableList.builder().addAll(nCopies(argsLength, javaType)).build().toArray(new Class<?>[argsLength])));
}

Example 82 with Parameter

use of com.facebook.presto.bytecode.Parameter in project presto by prestodb.

the class JoinCompiler method generateCompareSortChannelPositionsMethod.

private static void generateCompareSortChannelPositionsMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> types, List<FieldDefinition> channelFields, Optional<Integer> sortChannel) {
    Parameter leftBlockIndex = arg("leftBlockIndex", int.class);
    Parameter leftBlockPosition = arg("leftBlockPosition", int.class);
    Parameter rightBlockIndex = arg("rightBlockIndex", int.class);
    Parameter rightBlockPosition = arg("rightBlockPosition", int.class);
    MethodDefinition compareMethod = classDefinition.declareMethod(a(PUBLIC), "compareSortChannelPositions", type(int.class), leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition);
    if (!sortChannel.isPresent()) {
        compareMethod.getBody().append(newInstance(UnsupportedOperationException.class)).throwObject();
        return;
    }
    Variable thisVariable = compareMethod.getThis();
    int index = sortChannel.get();
    BytecodeExpression type = constantType(callSiteBinder, types.get(index));
    BytecodeExpression leftBlock = thisVariable.getField(channelFields.get(index)).invoke("get", Object.class, leftBlockIndex).cast(Block.class);
    BytecodeExpression rightBlock = thisVariable.getField(channelFields.get(index)).invoke("get", Object.class, rightBlockIndex).cast(Block.class);
    BytecodeNode comparison = type.invoke("compareTo", int.class, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition).ret();
    compareMethod.getBody().append(comparison);
}

Example 83 with Parameter

use of com.facebook.presto.bytecode.Parameter in project presto by prestodb.

the class JoinCompiler method generatePositionEqualsRowMethod.

private static void generatePositionEqualsRowMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> joinChannelTypes, List<FieldDefinition> joinChannelFields, boolean ignoreNulls) {
    Parameter leftBlockIndex = arg("leftBlockIndex", int.class);
    Parameter leftBlockPosition = arg("leftBlockPosition", int.class);
    Parameter rightPosition = arg("rightPosition", int.class);
    Parameter rightPage = arg("rightPage", Page.class);
    MethodDefinition positionEqualsRowMethod = classDefinition.declareMethod(a(PUBLIC), ignoreNulls ? "positionEqualsRowIgnoreNulls" : "positionEqualsRow", type(boolean.class), leftBlockIndex, leftBlockPosition, rightPosition, rightPage);
    Variable thisVariable = positionEqualsRowMethod.getThis();
    for (int index = 0; index < joinChannelTypes.size(); index++) {
        BytecodeExpression type = constantType(callSiteBinder, joinChannelTypes.get(index));
        BytecodeExpression leftBlock = thisVariable.getField(joinChannelFields.get(index)).invoke("get", Object.class, leftBlockIndex).cast(Block.class);
        BytecodeExpression rightBlock = rightPage.invoke("getBlock", Block.class, constantInt(index));
        BytecodeNode equalityCondition;
        if (ignoreNulls) {
            equalityCondition = typeEqualsIgnoreNulls(type, leftBlock, leftBlockPosition, rightBlock, rightPosition);
        } else {
            equalityCondition = typeEquals(type, leftBlock, leftBlockPosition, rightBlock, rightPosition);
        }
        LabelNode checkNextField = new LabelNode("checkNextField");
        positionEqualsRowMethod.getBody().append(equalityCondition).ifTrueGoto(checkNextField).push(false).retBoolean().visitLabel(checkNextField);
    }
    positionEqualsRowMethod.getBody().push(true).retInt();
}

Example 84 with Parameter

use of com.facebook.presto.bytecode.Parameter in project presto by prestodb.

the class JoinCompiler method generateIsPositionNull.

private static void generateIsPositionNull(ClassDefinition classDefinition, List<FieldDefinition> joinChannelFields) {
    Parameter blockIndex = arg("blockIndex", int.class);
    Parameter blockPosition = arg("blockPosition", int.class);
    MethodDefinition isPositionNullMethod = classDefinition.declareMethod(a(PUBLIC), "isPositionNull", type(boolean.class), blockIndex, blockPosition);
    for (FieldDefinition joinChannelField : joinChannelFields) {
        BytecodeExpression block = isPositionNullMethod.getThis().getField(joinChannelField).invoke("get", Object.class, blockIndex).cast(Block.class);
        IfStatement ifStatement = new IfStatement();
        ifStatement.condition(block.invoke("isNull", boolean.class, blockPosition));
        ifStatement.ifTrue(constantTrue().ret());
        isPositionNullMethod.getBody().append(ifStatement);
    }
    isPositionNullMethod.getBody().append(constantFalse().ret());
}

Example 85 with Parameter

use of com.facebook.presto.bytecode.Parameter in project presto by prestodb.

the class JoinCompiler method generateConstructor.

private static void generateConstructor(ClassDefinition classDefinition, List<Integer> joinChannels, FieldDefinition sizeField, FieldDefinition instanceSizeField, List<FieldDefinition> channelFields, List<FieldDefinition> joinChannelFields, FieldDefinition hashChannelField) {
    Parameter channels = arg("channels", type(List.class, type(List.class, Block.class)));
    Parameter hashChannel = arg("hashChannel", type(OptionalInt.class));
    MethodDefinition constructorDefinition = classDefinition.declareConstructor(a(PUBLIC), channels, hashChannel);
    Variable thisVariable = constructorDefinition.getThis();
    Variable blockIndex = constructorDefinition.getScope().declareVariable(int.class, "blockIndex");
    BytecodeBlock constructor = constructorDefinition.getBody().comment("super();").append(thisVariable).invokeConstructor(Object.class);
    constructor.comment("this.size = INSTANCE_SIZE").append(thisVariable.setField(sizeField, getStatic(instanceSizeField)));
    constructor.comment("Set channel fields");
    for (int index = 0; index < channelFields.size(); index++) {
        BytecodeExpression channel = channels.invoke("get", Object.class, constantInt(index)).cast(type(List.class, Block.class));
        constructor.append(thisVariable.setField(channelFields.get(index), channel));
        BytecodeBlock loopBody = new BytecodeBlock();
        constructor.comment("for(blockIndex = 0; blockIndex < channel.size(); blockIndex++) { size += channel.get(i).getRetainedSizeInBytes() }").append(new ForLoop().initialize(blockIndex.set(constantInt(0))).condition(new BytecodeBlock().append(blockIndex).append(channel.invoke("size", int.class)).invokeStatic(CompilerOperations.class, "lessThan", boolean.class, int.class, int.class)).update(new BytecodeBlock().incrementVariable(blockIndex, (byte) 1)).body(loopBody));
        loopBody.append(thisVariable).append(thisVariable).getField(sizeField).append(channel.invoke("get", Object.class, blockIndex).cast(type(Block.class)).invoke("getRetainedSizeInBytes", long.class)).longAdd().putField(sizeField);
    }
    constructor.comment("Set join channel fields");
    for (int index = 0; index < joinChannelFields.size(); index++) {
        BytecodeExpression joinChannel = channels.invoke("get", Object.class, constantInt(joinChannels.get(index))).cast(type(List.class, Block.class));
        constructor.append(thisVariable.setField(joinChannelFields.get(index), joinChannel));
    }
    constructor.comment("Set hashChannel");
    constructor.append(new IfStatement().condition(hashChannel.invoke("isPresent", boolean.class)).ifTrue(thisVariable.setField(hashChannelField, channels.invoke("get", Object.class, hashChannel.invoke("getAsInt", int.class)))).ifFalse(thisVariable.setField(hashChannelField, constantNull(hashChannelField.getType()))));
    constructor.ret();
}