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  1. Drools
  2. DROOLS-7017

"_this cannot be resolved" in LambdaExtractor when involving a declaration in pattern

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Details

    • Bug
    • Resolution: Done
    • Major
    • 7.72.0.Final
    • 7.71.0.Final
    • executable model
    • None
    • 2022 Week 23-25 (from Jun 6)
    • 2
    • NEW
    • NEW
    • ---
    • ---

    Description

      A rule like this

      rule r1
when
    Person( $rate : 100,  salary > age * $rate )

      fails with an error like this

      [Message [id=1, level=ERROR, path=src/main/java/org/drools/mvel/compiler/PB6/LambdaExtractorB69FDEB2071FDB87256AFB86A3057AC1.java, line=22, column=787
   text=_this cannot be resolved], Message [id=2, level=ERROR, path=src/main/java/org/drools/mvel/compiler/PB6/LambdaExtractorB69FDEB2071FDB87256AFB86A3057AC1.java, line=0, column=0
   text=Java source of src/main/java/org/drools/mvel/compiler/PB6/LambdaExtractorB69FDEB2071FDB87256AFB86A3057AC1.java in error:

      The problem is that "_this" is missing in the extractor's method parameters but the root cause is that it tries to create a BetaIndex while non-exec-model creates AlphaIndex in this case.

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        Issue Links

          is incorporated by

          Bug - A problem that impairs or prevents the functions of the product. RHDM-1940 Build fails with a message "_this cannot be resolved" during compiling a generated executable model

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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            People

              rhn-support-tkobayas Toshiya Kobayashi
              rhn-support-tkobayas Toshiya Kobayashi
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              Dates

                Created:
                Updated:
                Resolved: