Groovy 3 support in Eclipse Groovy Editor

Question

I have installed the latest release of the Groovy Development Tools in my Eclipse 2020-12. As I try to use Groovy 3.0 features. for example, do { } while() , it is flagged as an Unexpected Token syntax error. The documentation says that this version does support Groovy 3. Is there perhaps a setting to set up the Groovy compliance level for the editor? My currently selected Groovy Compiler is v3.

Thank you! Oleg

Answer 1

The antlr4-based parser is not enabled by default. You can enable it by setting system property groovy.antlr4 to true. More details in the release notes of Groovy-Eclipse on github.