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  1. JDK
  2. JDK-8182538 javac technical debt umbrella task
  3. JDK-8024098

javac syntax tree should more closely model the source code

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Details

    • Sub-task
    • Status: Open
    • P4
    • Resolution: Unresolved
    • None
    • tbd_major
    • tools

    Description

      Currently, some desugaring is done early, in the parser (e.g. enum constants) and MemberEnter (e.g. default constructors, super calls).

      It would be better if the tree more closely modeled the source text (up until TransTypes and Lower). This will mean adding more tree nodes. The desugaring done today should effectively be done while creating the internal semantic data structures.

      A nice goal/test would be to be able to take a source file, run it through parse() and analyze(), write out the tree, and get the same sequence of tokens found in the original file (i.e. ignoring changes in whitespace and comments.)

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8268850 Detect inferred local variable types in AST

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. JDK-7077364 (javac) Starting positions of ClassTree for enum constants

          • P5 - Cosmetic problem like misspelt words or misaligned text.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. JDK-8214902 Pretty-printing marker annotations add unnecessary parenthesis

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Enhancement - null JDK-8044555 The Tree API gives no access to non-Javadoc comments

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Enhancement - null JDK-8044853 Attr synthesizes nullcheck tree nodes

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8076281 Investigate compiler Tree API client's expectations for inferred elided types.

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. JDK-8031725 No way to detect synthetic com.sun.source.tree.Tree's

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8035787 SourcePositions are wrong for Strings concatenated with '+' operator

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          links to

          Web Link compiler-dev: Javac Tree API suggestions to more closely model source code

          Activity

            People

              jlahoda Jan Lahoda
              jjg Jonathan Gibbons
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              Dates

                Created:
                Updated: