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

Example 21 with Parameter

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

the class TryCodeGenerator method generateExpression.

@Override
public BytecodeNode generateExpression(Signature signature, BytecodeGeneratorContext context, Type returnType, List<RowExpression> arguments) {
    checkArgument(arguments.size() == 1, "try methods only contain a single expression");
    checkArgument(getOnlyElement(arguments) instanceof CallExpression, "try methods must contain a call expression");
    CallExpression innerCallExpression = (CallExpression) getOnlyElement(arguments);
    checkState(tryMethodsMap.containsKey(innerCallExpression), "try methods map does not contain this try call");
    MethodDefinition definition = tryMethodsMap.get(innerCallExpression);
    ImmutableList<Variable> invokeArguments = definition.getParameters().stream().map(parameter -> context.getScope().getVariable(parameter.getName())).collect(toImmutableList());
    return new BytecodeBlock().append(context.getScope().getThis().invoke(definition, invokeArguments)).append(unboxPrimitiveIfNecessary(context.getScope(), Primitives.wrap(innerCallExpression.getType().getJavaType())));
}

Example 22 with Parameter

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

the class JoinCompiler method generatePositionEqualsRowWithPageMethod.

private static void generatePositionEqualsRowWithPageMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> joinChannelTypes, List<FieldDefinition> joinChannelFields) {
    Parameter leftBlockIndex = arg("leftBlockIndex", int.class);
    Parameter leftBlockPosition = arg("leftBlockPosition", int.class);
    Parameter rightPosition = arg("rightPosition", int.class);
    Parameter page = arg("page", Page.class);
    Parameter rightChannels = arg("rightChannels", int[].class);
    MethodDefinition positionEqualsRowMethod = classDefinition.declareMethod(a(PUBLIC), "positionEqualsRow", type(boolean.class), leftBlockIndex, leftBlockPosition, rightPosition, page, rightChannels);
    Variable thisVariable = positionEqualsRowMethod.getThis();
    BytecodeBlock body = positionEqualsRowMethod.getBody();
    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 = page.invoke("getBlock", Block.class, rightChannels.getElement(index));
        body.append(new IfStatement().condition(typeEquals(type, leftBlock, leftBlockPosition, rightBlock, rightPosition)).ifFalse(constantFalse().ret()));
    }
    body.append(constantTrue().ret());
}

Example 23 with Parameter

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

the class JoinCompiler method generateHashRowMethod.

private static void generateHashRowMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> joinChannelTypes) {
    Parameter position = arg("position", int.class);
    Parameter page = arg("blocks", Page.class);
    MethodDefinition hashRowMethod = classDefinition.declareMethod(a(PUBLIC), "hashRow", type(long.class), position, page);
    Variable resultVariable = hashRowMethod.getScope().declareVariable(long.class, "result");
    hashRowMethod.getBody().push(0L).putVariable(resultVariable);
    for (int index = 0; index < joinChannelTypes.size(); index++) {
        BytecodeExpression type = constantType(callSiteBinder, joinChannelTypes.get(index));
        BytecodeExpression block = page.invoke("getBlock", Block.class, constantInt(index));
        hashRowMethod.getBody().getVariable(resultVariable).push(31L).append(OpCode.LMUL).append(typeHashCode(type, block, position)).append(OpCode.LADD).putVariable(resultVariable);
    }
    hashRowMethod.getBody().getVariable(resultVariable).retLong();
}

Example 24 with Parameter

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

the class JoinCompiler method generatePositionEqualsPositionMethod.

private static void generatePositionEqualsPositionMethod(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 rightBlockIndex = arg("rightBlockIndex", int.class);
    Parameter rightBlockPosition = arg("rightBlockPosition", int.class);
    MethodDefinition positionEqualsPositionMethod = classDefinition.declareMethod(a(PUBLIC), ignoreNulls ? "positionEqualsPositionIgnoreNulls" : "positionEqualsPosition", type(boolean.class), leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition);
    Variable thisVariable = positionEqualsPositionMethod.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 = thisVariable.getField(joinChannelFields.get(index)).invoke("get", Object.class, rightBlockIndex).cast(Block.class);
        BytecodeNode equalityCondition;
        if (ignoreNulls) {
            equalityCondition = typeEqualsIgnoreNulls(type, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition);
        } else {
            equalityCondition = typeEquals(type, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition);
        }
        LabelNode checkNextField = new LabelNode("checkNextField");
        positionEqualsPositionMethod.getBody().append(equalityCondition).ifTrueGoto(checkNextField).push(false).retBoolean().visitLabel(checkNextField);
    }
    positionEqualsPositionMethod.getBody().push(true).retInt();
}

Example 25 with Parameter

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

the class JoinFilterFunctionCompiler method generateMethodsForLambdaAndTry.

private PreGeneratedExpressions generateMethodsForLambdaAndTry(ClassDefinition containerClassDefinition, CallSiteBinder callSiteBinder, CachedInstanceBinder cachedInstanceBinder, int leftBlocksSize, RowExpression filter) {
    Set<RowExpression> lambdaAndTryExpressions = ImmutableSet.copyOf(extractLambdaAndTryExpressions(filter));
    ImmutableMap.Builder<CallExpression, MethodDefinition> tryMethodMap = ImmutableMap.builder();
    ImmutableMap.Builder<LambdaDefinitionExpression, FieldDefinition> lambdaFieldMap = ImmutableMap.builder();
    int counter = 0;
    for (RowExpression expression : lambdaAndTryExpressions) {
        if (expression instanceof CallExpression) {
            CallExpression tryExpression = (CallExpression) expression;
            verify(!Signatures.TRY.equals(tryExpression.getSignature().getName()));
            Parameter session = arg("session", ConnectorSession.class);
            Parameter leftPosition = arg("leftPosition", int.class);
            Parameter leftBlocks = arg("leftBlocks", Block[].class);
            Parameter rightPosition = arg("rightPosition", int.class);
            Parameter rightBlocks = arg("rightBlocks", Block[].class);
            BytecodeExpressionVisitor innerExpressionVisitor = new BytecodeExpressionVisitor(callSiteBinder, cachedInstanceBinder, fieldReferenceCompiler(callSiteBinder, leftPosition, leftBlocks, rightPosition, rightBlocks, leftBlocksSize), metadata.getFunctionRegistry(), new PreGeneratedExpressions(tryMethodMap.build(), lambdaFieldMap.build()));
            List<Parameter> inputParameters = ImmutableList.<Parameter>builder().add(session).add(leftPosition).add(leftBlocks).add(rightPosition).add(rightBlocks).build();
            MethodDefinition tryMethod = defineTryMethod(innerExpressionVisitor, containerClassDefinition, "try_" + counter, inputParameters, Primitives.wrap(tryExpression.getType().getJavaType()), tryExpression, callSiteBinder);
            tryMethodMap.put(tryExpression, tryMethod);
        } else if (expression instanceof LambdaDefinitionExpression) {
            LambdaDefinitionExpression lambdaExpression = (LambdaDefinitionExpression) expression;
            PreGeneratedExpressions preGeneratedExpressions = new PreGeneratedExpressions(tryMethodMap.build(), lambdaFieldMap.build());
            FieldDefinition methodHandleField = LambdaBytecodeGenerator.preGenerateLambdaExpression(lambdaExpression, "lambda_" + counter, containerClassDefinition, preGeneratedExpressions, callSiteBinder, cachedInstanceBinder, metadata.getFunctionRegistry());
            lambdaFieldMap.put(lambdaExpression, methodHandleField);
        } else {
            throw new VerifyException(format("unexpected expression: %s", expression.toString()));
        }
        counter++;
    }
    return new PreGeneratedExpressions(tryMethodMap.build(), lambdaFieldMap.build());
}