Package com.facebook.presto.byteCode

Examples of com.facebook.presto.byteCode.Block.comment()

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                );

        Block forLoopBody = new Block(compilerContext);
        forLoop.body(forLoopBody);

        forLoopBody.comment("if (pageBuilder.isFull()) break;")
                .append(new Block(compilerContext)
                        .getVariable("pageBuilder")
                        .invokeVirtual(PageBuilder.class, "isFull", boolean.class)
                        .ifTrueGoto(done));
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                .append(new Block(compilerContext)
                        .getVariable("pageBuilder")
                        .invokeVirtual(PageBuilder.class, "isFull", boolean.class)
                        .ifTrueGoto(done));

        forLoopBody.comment("if (!cursor.advanceNextPosition()) break;")
                .append(new Block(compilerContext)
                        .getVariable("cursor")
                        .invokeInterface(RecordCursor.class, "advanceNextPosition", boolean.class)
                        .ifFalseGoto(done));
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                .append(body);

        Type projectionType = expressionTypes.get(projection);
        Block notNullBlock = new Block(context);
        if (projectionType.getJavaType() == boolean.class) {
            notNullBlock
                    .comment("output.append(<booleanStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendBoolean", BlockBuilder.class, boolean.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == long.class) {
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                    .comment("output.append(<booleanStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendBoolean", BlockBuilder.class, boolean.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == long.class) {
            notNullBlock
                    .comment("output.append(<longStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendLong", BlockBuilder.class, long.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == double.class) {
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                    .comment("output.append(<longStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendLong", BlockBuilder.class, long.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == double.class) {
            notNullBlock
                    .comment("output.append(<doubleStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendDouble", BlockBuilder.class, double.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == Slice.class) {
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                    .comment("output.append(<doubleStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendDouble", BlockBuilder.class, double.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == Slice.class) {
            notNullBlock
                    .comment("output.append(<sliceStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendSlice", BlockBuilder.class, Slice.class)
                    .pop();
        }
        else {
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                .getBody()
                .comment("super();")
                .pushThis()
                .invokeConstructor(Object.class);

        constructor.comment("this.lookupSource = lookupSource;");
        constructor
                .pushThis()
                .getVariable("lookupSource")
                .putField(lookupSourceField);
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        constructor
                .pushThis()
                .getVariable("lookupSource")
                .putField(lookupSourceField);

        constructor.comment("Set cursor fields");
        for (int index = 0; index < cursorFields.size(); index++) {
            constructor
                    .pushThis()
                    .getVariable("page")
                    .push(index)
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                    .invokeVirtual(Page.class, "getBlock", com.facebook.presto.spi.block.Block.class, int.class)
                    .invokeInterface(com.facebook.presto.spi.block.Block.class, "cursor", BlockCursor.class)
                    .putField(cursorFields.get(index));
        }

        constructor.comment("Set probe channel fields");
        for (int index = 0; index < probeChannelFields.size(); index++) {
            constructor
                    .pushThis()
                    .pushThis()
                    .getField(cursorFields.get(probeChannels.get(index)))
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                    .pushThis()
                    .getField(cursorFields.get(probeChannels.get(index)))
                    .putField(probeChannelFields.get(index));
        }

        constructor.comment("this.probeCursors = new BlockCursor[<probeChannelCount>];");
        constructor
                .pushThis()
                .push(probeChannelFields.size())
                .newArray(BlockCursor.class)
                .putField(probeCursorsArrayField);
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