Package com.facebook.presto.byteCode.control

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

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                .pop()
                .pop();

        projectionMethod.getBody()
                .comment("if the result was null, appendNull; otherwise append the value")
                .append(new IfStatement(context, new Block(context).getVariable("wasNull"), nullBlock, notNullBlock))
                .ret();

        return projectionType.getJavaType();
    }
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        classDefinition.declareMethod(context,
                a(PUBLIC),
                "getCurrentJoinPosition",
                type(long.class))
                .getBody()
                .append(new IfStatement(
                        context,
                        new Block(context).append(context.getVariable("this").invoke("currentRowContainsNull", boolean.class)),
                        new Block(context).push(-1L).retLong(),
                        null
                ))
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            // for huge IN lists, use a Set
            Binding constant = generatorContext.getCallSiteBinder().bind(constantValues, Set.class);

            switchBlock = new Block(context)
                    .comment("inListSet.contains(<stackValue>)")
                    .append(new IfStatement(context,
                            new Block(context)
                                    .comment("value (+boxing if necessary)")
                                    .dup(javaType)
                                    .append(ByteCodeUtils.boxPrimitive(context, javaType))
                                    .comment("set")
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        if (!stackArgsToPop.isEmpty()) {
            popComment = format("pop(%s)", Joiner.on(", ").join(stackArgsToPop));
        }

        String comment = format("if wasNull then %s", Joiner.on(", ").skipNulls().join(clearComment, popComment, loadDefaultComment, "goto " + label.getLabel()));
        return new IfStatement(context, comment, nullCheck, isNull, NOP);
    }
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                .putVariable("wasNull", true)
                .pop(first.getType().getJavaType())
                .pushJavaDefault(first.getType().getJavaType());

        // else return first (which is still on the stack
        block.append(new IfStatement(context, conditionBlock, trueBlock, notMatch));

        return block;
    }
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        Block block = new Block(context)
                .comment("IS DISTINCT FROM")
                .comment("left")
                .append(generatorContext.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(generatorContext.generate(right))
                                .pop(rightType.getJavaType())
                                .getVariable("wasNull")
                                .invokeStatic(CompilerOperations.class, "not", boolean.class, boolean.class),
                        new Block(context)
                                .comment("right")
                                .append(generatorContext.generate(right))
                                .append(new IfStatement(context,
                                        new Block(context).getVariable("wasNull"),
                                        new Block(context)
                                                .pop(leftType.getJavaType())
                                                .pop(rightType.getJavaType())
                                                .push(true),
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            Block nullBlock = new Block(context)
                    .pop(returnType.getJavaType())
                    .putVariable("wasNull", false)
                    .append(nullValue);

            nullValue = new IfStatement(context, condition, nullBlock, NOP);
        }

        return nullValue;
    }
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        classDefinition.declareMethod(context,
                a(PUBLIC),
                "getCurrentJoinPosition",
                type(long.class))
                .getBody()
                .append(new IfStatement(
                        context,
                        new Block(context).append(context.getVariable("this").invoke("currentRowContainsNull", boolean.class)),
                        new Block(context).push(-1L).retLong(),
                        null
                ))
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                .getVariable("wasNull")
                .invokeStatic(CompilerOperations.class, "not", boolean.class, boolean.class)
                .invokeStatic(CompilerOperations.class, "and", boolean.class, boolean.class, boolean.class)
                .putVariable("wasNull", false);

        return new IfStatement(context.getContext(),
                condition,
                context.generate(arguments.get(1)),
                context.generate(arguments.get(2)));
    }
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            Block condition = new Block(context)
                    .append(equalsCall)
                    .putVariable("wasNull", false);

            elseValue = new IfStatement(context,
                    "when",
                    condition,
                    generatorContext.generate(result),
                    elseValue);
        }
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Related Classes of com.facebook.presto.byteCode.control.IfStatement$IfStatementBuilder

  • com.facebook.presto.byteCode.Block
  • com.facebook.presto.sql.gen.ByteCodeExpressionVisitor
  • com.facebook.presto.sql.gen.ByteCodeUtils
  • com.facebook.presto.sql.gen.CoalesceCodeGenerator
  • com.facebook.presto.sql.gen.CursorProcessorCompiler
  • com.facebook.presto.sql.gen.ExpressionCompiler
  • com.facebook.presto.sql.gen.IfCodeGenerator
  • com.facebook.presto.sql.gen.InCodeGenerator
  • com.facebook.presto.sql.gen.IsDistinctFromCodeGenerator
  • com.facebook.presto.sql.gen.JoinProbeCompiler
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