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runtime(java): Exclude lambda expressions from _when_ _switch-case_ label clauses (#14945)

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These guard clauses are always boolean expressions, whereas
lambda expressions can only appear in either an assignment,
a casting, or an invocation context.

References:
https://docs.oracle.com/javase/specs/jls/se21/html/jls-14.html#jls-14.11.1
https://docs.oracle.com/javase/specs/jls/se21/html/jls-15.html#jls-15.27

Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Aliaksei Budavei
2024-06-09 19:39:52 +03:00
committed by GitHub
parent 477402ecf9
commit d6b4afb636
12 changed files with 158 additions and 48 deletions
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4
runtime/syntax/java.vim
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@@ -3,7 +3,7 @@
" Maintainer: Aliaksei Budavei <0x000c70 AT gmail DOT com>
" Former Maintainer: Claudio Fleiner <claudio@fleiner.com>
" Repository: https://github.com/zzzyxwvut/java-vim.git
" Last Change: 2024 May 30
" Last Change: 2024 Jun 08
" Please check :help java.vim for comments on some of the options available.
@@ -215,7 +215,7 @@ syn keyword javaLabelVarType contained var
syn keyword javaLabelCastType contained char byte short int
" Allow for the contingency of the enclosing region not being able to
" _keep_ its _end_, e.g. case ':':.
syn region javaLabelWhenClause contained transparent matchgroup=javaLabel start="\<when\>" matchgroup=NONE end=":"me=e-1 end="->"me=e-2 contains=TOP,javaExternal
syn region javaLabelWhenClause contained transparent matchgroup=javaLabel start="\<when\>" matchgroup=NONE end=":"me=e-1 end="->"me=e-2 contains=TOP,javaExternal,javaLambdaDef
syn match javaLabelNumber contained "\<0\>[lL]\@!"
syn match javaLabelNumber contained "\<\%(0\%([xX]\x\%(_*\x\)*\|_*\o\%(_*\o\)*\|[bB][01]\%(_*[01]\)*\)\|[1-9]\%(_*\d\)*\)\>[lL]\@!"
hi def link javaLabelDefault javaLabel