[GROOVY-9427] Regression in GString handling

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.1
• Fix Version/s: 4.0.0-alpha-1, 3.0.2
• Component/s: parser-antlr4
• Assignee: Daniel Sun
• Reporter: Paul King
• Created: 29/Feb/20 02:26
• Updated: 09/Mar/20 03:05
• Resolved: 29/Feb/20 07:09

Description

Seems like a regression in GString placeholder parsing:
Groovy 2.5.9: executing String s in groovyConsole gives => null
Groovy 3.0.1: executing String s in groovyConsole gives => null
In both cases it is a declaration statement, type String, name s (all good so far)

Trying a GString containing the same expression yields:
Groovy 2.5.9: executing "${String s}" in groovyConsole gives => null
Groovy 3.0.1: executing "${String s}" in groovyConsole gives => groovy.lang.MissingPropertyException: No such property: s for class

In 2.5.9, we have a GString with value being a closure exp containing the decl exp as per previous example
In 3.0.1, we have a GString with value being a method call exp with name 'java.lang.String' and arg 's'