Examples of IfStatementBuilder

com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                .getVariable(sampleWeights)
                .getVariable(position)
                .invokeStatic(ApproximateUtils.class, "computeSampleWeight", long.class, com.facebook.presto.spi.block.Block.class, com.facebook.presto.spi.block.Block.class, int.class)
                .putVariable(sampleWeight);


        IfStatementBuilder builder = ifStatementBuilder(context);
        builder.comment("if(sampleWeight > 0)")
                .condition(new Block(context)
                        .getVariable(sampleWeight)
                        .invokeStatic(CompilerOperations.class, "longGreaterThanZero", boolean.class, long.class))
                .ifTrue(body)
                .ifFalse(NOP);


        return block.append(builder.build());
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

        Block block = new Block(context)
                .getVariable("block")
                .invokeInterface(com.facebook.presto.spi.block.Block.class, "getPositionCount", int.class)
                .putVariable(rowsVariable);


        IfStatementBuilder builder = ifStatementBuilder(context);
        builder.comment("if(!block.isNull(position))")
                .condition(new Block(context)
                        .getVariable("block")
                        .getVariable(positionVariable)
                        .invokeInterface(com.facebook.presto.spi.block.Block.class, "isNull", boolean.class, int.class))
                .ifTrue(NOP)
                .ifFalse(loopBody);


        block.append(new ForLoop.ForLoopBuilder(context)
                .initialize(new Block(context).putVariable(positionVariable, 0))
                .condition(new Block(context)
                        .getVariable(positionVariable)
                        .getVariable(rowsVariable)
                        .invokeStatic(CompilerOperations.class, "lessThan", boolean.class, int.class, int.class))
                .update(new Block(context).incrementVariable(positionVariable, (byte) 1))
                .body(builder.build())
                .build());


        return block;
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                .retInt();
    }


    private static ByteCodeNode typeHashCode(CompilerContext compilerContext, ByteCodeExpression type, ByteCodeExpression blockRef, ByteCodeExpression blockPosition)
    {
        IfStatementBuilder ifStatementBuilder = new IfStatementBuilder(compilerContext);


        ifStatementBuilder.condition(new Block(compilerContext).append(blockRef.invoke("isNull", boolean.class, blockPosition)));


        ifStatementBuilder.ifTrue(new Block(compilerContext).push(0));


        ifStatementBuilder.ifFalse(new Block(compilerContext).append(type.invoke("hash", int.class, blockRef, blockPosition)));


        return ifStatementBuilder.build();
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

            ByteCodeExpression leftBlock,
            ByteCodeExpression leftBlockPosition,
            ByteCodeExpression rightBlock,
            ByteCodeExpression rightBlockPosition)
    {
        IfStatementBuilder ifStatementBuilder = new IfStatementBuilder(compilerContext);
        ifStatementBuilder.condition(new Block(compilerContext)
                .append(leftBlock.invoke("isNull", boolean.class, leftBlockPosition))
                .append(rightBlock.invoke("isNull", boolean.class, rightBlockPosition))
                .append(OpCode.IOR));


        ifStatementBuilder.ifTrue(new Block(compilerContext)
                .append(leftBlock.invoke("isNull", boolean.class, leftBlockPosition))
                .append(rightBlock.invoke("isNull", boolean.class, rightBlockPosition))
                .append(OpCode.IAND));


        ifStatementBuilder.ifFalse(new Block(compilerContext).append(type.invoke("equalTo", boolean.class, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition)));


        return ifStatementBuilder.build();
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

            }
        }
        checkState(nullable.size() == parameterVariables.size(), "Number of parameters does not match");
        for (int i = 0; i < parameterVariables.size(); i++) {
            if (!nullable.get(i)) {
                IfStatementBuilder builder = ifStatementBuilder(context);
                Variable variableDefinition = parameterVariables.get(i);
                builder.comment("if(!%s.isNull(position))", variableDefinition.getName())
                        .condition(new Block(context)
                                .getVariable(variableDefinition)
                                .getVariable(positionVariable)
                                .invokeInterface(com.facebook.presto.spi.block.Block.class, "isNull", boolean.class, int.class))
                        .ifTrue(NOP)
                        .ifFalse(loopBody);
                loopBody = new Block(context).append(builder.build());
            }
        }


        // Check that sample weight is > 0 (also checks the mask)
        if (sampleWeightVariable != null) {
            loopBody = generateComputeSampleWeightAndCheckGreaterThanZero(context, loopBody, sampleWeightVariable, masksBlock, sampleWeightsBlock, positionVariable);
        }
        // Otherwise just check the mask
        else {
            IfStatementBuilder builder = ifStatementBuilder(context);
            builder.comment("if(testMask(%s, position))", masksBlock.getName())
                    .condition(new Block(context)
                            .getVariable(masksBlock)
                            .getVariable(positionVariable)
                            .invokeStatic(CompilerOperations.class, "testMask", boolean.class, com.facebook.presto.spi.block.Block.class, int.class))
                    .ifTrue(loopBody)
                    .ifFalse(NOP);
            loopBody = new Block(context).append(builder.build());
        }


        block.append(new ForLoop.ForLoopBuilder(context)
                .initialize(new Block(context).putVariable(positionVariable, 0))
                .condition(new Block(context)

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                    .getVariable(cursorVariable)
                    .invokeInterface(BlockCursor.class, "advanceNextPosition", boolean.class)
                    .invokeStatic(Preconditions.class, "checkState", void.class, boolean.class);
        }


        IfStatementBuilder ifStatement = new IfStatementBuilder(compilerContext)
                .comment("if (filter(cursors...)");
        Block condition = new Block(compilerContext);
        condition.pushThis();
        for (int channel = 0; channel < channels; channel++) {
            condition.getVariable("cursor_" + channel);
        }
        condition.invokeVirtual(classDefinition.getType(), "filter", type(boolean.class), nCopies(channels, type(TupleReadable.class)));
        ifStatement.condition(condition);


        Block trueBlock = new Block(compilerContext);
        if (projections.isEmpty()) {
            trueBlock
                    .comment("pageBuilder.declarePosition()")
                    .getVariable("pageBuilder")
                    .invokeVirtual(PageBuilder.class, "declarePosition", void.class);
        }
        else {
            // pageBuilder.getBlockBuilder(0).append(cursor.getDouble(0);
            for (int projectionIndex = 0; projectionIndex < projections.size(); projectionIndex++) {
                trueBlock.comment("project_%s(cursors..., pageBuilder.getBlockBuilder(%s))", projectionIndex, projectionIndex);
                trueBlock.pushThis();
                for (int channel = 0; channel < channels; channel++) {
                    trueBlock.getVariable("cursor_" + channel);
                }


                // pageBuilder.getBlockBuilder(0)
                trueBlock.getVariable("pageBuilder")
                        .push(projectionIndex)
                        .invokeVirtual(PageBuilder.class, "getBlockBuilder", BlockBuilder.class, int.class);


                // project(cursor_0, cursor_1, blockBuilder)
                trueBlock.invokeVirtual(classDefinition.getType(),
                        "project_" + projectionIndex,
                        type(void.class),
                        ImmutableList.<ParameterizedType>builder().addAll(nCopies(channels, type(TupleReadable.class))).add(type(BlockBuilder.class)).build());
            }
        }
        ifStatement.ifTrue(trueBlock);


        forLoopBody.append(ifStatement.build());
        filterAndProjectMethod.getBody().append(forLoop.body(forLoopBody).build());


        //
        //  Verify all cursors ended together
        //

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                        .getVariable("cursor")
                        .invokeInterface(RecordCursor.class, "advanceNextPosition", boolean.class)
                        .ifFalseGoto(done));


        // if (filter(cursor))
        IfStatementBuilder ifStatement = new IfStatementBuilder(compilerContext);
        ifStatement.condition(new Block(compilerContext)
                .pushThis()
                .getVariable("cursor")
                .invokeVirtual(classDefinition.getType(), "filter", type(boolean.class), type(RecordCursor.class)));


        Block trueBlock = new Block(compilerContext);
        ifStatement.ifTrue(trueBlock);
        if (projections.isEmpty()) {
            // pageBuilder.declarePosition();
            trueBlock.getVariable("pageBuilder").invokeVirtual(PageBuilder.class, "declarePosition", void.class);
        }
        else {
            // project_43(cursor_0, cursor_1, pageBuilder.getBlockBuilder(42)));
            for (int projectionIndex = 0; projectionIndex < projections.size(); projectionIndex++) {
                trueBlock.pushThis();
                trueBlock.getVariable("cursor");


                // pageBuilder.getBlockBuilder(0)
                trueBlock.getVariable("pageBuilder")
                        .push(projectionIndex)
                        .invokeVirtual(PageBuilder.class, "getBlockBuilder", BlockBuilder.class, int.class);


                // project(cursor_0, cursor_1, blockBuilder)
                trueBlock.invokeVirtual(classDefinition.getType(),
                        "project_" + projectionIndex,
                        type(void.class),
                        type(RecordCursor.class),
                        type(BlockBuilder.class));
            }
        }
        forLoopBody.append(ifStatement.build());


        filterAndProjectMethod.getBody()
                .append(forLoop.build())
                .visitLabel(done)
                .comment("return completedPositions;")

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                .comment(comment)
                .setDescription("AND");


        block.append(left.getNode());


        IfStatementBuilder ifLeftIsNull = ifStatementBuilder(context)
                .comment("if left wasNull...")
                .condition(new Block(context).getVariable("wasNull"));


        LabelNode end = new LabelNode("end");
        ifLeftIsNull.ifTrue(new Block(context)
                .comment("clear the null flag, pop left value off stack, and push left null flag on the stack (true)")
                .putVariable("wasNull", false)
                .pop(left.getType()) // discard left value
                .push(true));


        LabelNode leftIsTrue = new LabelNode("leftIsTrue");
        ifLeftIsNull.ifFalse(new Block(context)
                .comment("if left is false, push false, and goto end")
                .ifTrueGoto(leftIsTrue)
                .push(false)
                .gotoLabel(end)
                .comment("left was true; push left null flag on the stack (false)")
                .visitLabel(leftIsTrue)
                .push(false));


        block.append(ifLeftIsNull.build());


        // At this point we know the left expression was either NULL or TRUE.  The stack contains a single boolean
        // value for this expression which indicates if the left value was NULL.


        // eval right!
        block.append(right.getNode());


        IfStatementBuilder ifRightIsNull = ifStatementBuilder(context)
                .comment("if right wasNull...")
                .condition(new Block(context).getVariable("wasNull"));


        // this leaves a single boolean on the stack which is ignored since the value in NULL
        ifRightIsNull.ifTrue(new Block(context)
                .comment("right was null, pop the right value off the stack; wasNull flag remains set to TRUE")
                .pop(right.getType()));


        LabelNode rightIsTrue = new LabelNode("rightIsTrue");
        ifRightIsNull.ifFalse(new Block(context)
                .comment("if right is false, pop left null flag off stack, push false and goto end")
                .ifTrueGoto(rightIsTrue)
                .pop(boolean.class)
                .push(false)
                .gotoLabel(end)
                .comment("right was true; store left null flag (on stack) in wasNull variable, and push true")
                .visitLabel(rightIsTrue)
                .putVariable("wasNull")
                .push(true));


        block.append(ifRightIsNull.build())
                .visitLabel(end);


        return typedByteCodeNode(block, boolean.class);
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

                .comment(comment)
                .setDescription("OR");


        block.append(left.getNode());


        IfStatementBuilder ifLeftIsNull = ifStatementBuilder(context)
                .comment("if left wasNull...")
                .condition(new Block(context).getVariable("wasNull"));


        LabelNode end = new LabelNode("end");
        ifLeftIsNull.ifTrue(new Block(context)
                .comment("clear the null flag, pop left value off stack, and push left null flag on the stack (true)")
                .putVariable("wasNull", false)
                .pop(left.getType()) // discard left value
                .push(true));


        LabelNode leftIsFalse = new LabelNode("leftIsFalse");
        ifLeftIsNull.ifFalse(new Block(context)
                .comment("if left is true, push true, and goto end")
                .ifFalseGoto(leftIsFalse)
                .push(true)
                .gotoLabel(end)
                .comment("left was false; push left null flag on the stack (false)")
                .visitLabel(leftIsFalse)
                .push(false));


        block.append(ifLeftIsNull.build());


        // At this point we know the left expression was either NULL or FALSE.  The stack contains a single boolean
        // value for this expression which indicates if the left value was NULL.


        // eval right!
        block.append(right.getNode());


        IfStatementBuilder ifRightIsNull = ifStatementBuilder(context)
                .comment("if right wasNull...")
                .condition(new Block(context).getVariable("wasNull"));


        // this leaves a single boolean on the stack which is ignored since the value in NULL
        ifRightIsNull.ifTrue(new Block(context)
                .comment("right was null, pop the right value off the stack; wasNull flag remains set to TRUE")
                .pop(right.getType()));


        LabelNode rightIsTrue = new LabelNode("rightIsTrue");
        ifRightIsNull.ifFalse(new Block(context)
                .comment("if right is true, pop left null flag off stack, push true and goto end")
                .ifFalseGoto(rightIsTrue)
                .pop(boolean.class)
                .push(true)
                .gotoLabel(end)
                .comment("right was false; store left null flag (on stack) in wasNull variable, and push false")
                .visitLabel(rightIsTrue)
                .putVariable("wasNull")
                .push(false));


        block.append(ifRightIsNull.build())
                .visitLabel(end);


        return typedByteCodeNode(block, boolean.class);
    }

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Examples of com.facebook.presto.byteCode.control.IfStatement.IfStatementBuilder

        elseBlock.gotoLabel(noMatchLabel);


        ByteCodeNode elseNode = elseBlock;
        for (TypedByteCodeNode testNode : testValues) {
            LabelNode testLabel = new LabelNode("test");
            IfStatementBuilder test = ifStatementBuilder(context);


            Block condition = new Block(context)
                    .visitLabel(testLabel)
                    .dup(type)
                    .append(coerceToType(context, testNode, type).getNode());


            if (checkForNulls) {
                condition.getVariable("wasNull")
                        .putVariable(caseWasNull.getLocalVariableDefinition())
                        .append(ifWasNullPopAndGoto(context, elseLabel, void.class, type, type));
            }
            condition.invokeStatic(Operations.class, "equal", boolean.class, type, type);
            test.condition(condition);


            test.ifTrue(new Block(context).gotoLabel(matchLabel));
            test.ifFalse(elseNode);


            elseNode = test.build();
            elseLabel = testLabel;
        }
        caseBlock.append(elseNode);
        return caseBlock;
    }

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