Paul King created GROOVY-9936:
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Summary: Difference between Antlr2 and parrot parsers for variable
declaration optimisation
Key: GROOVY-9936
URL: https://issues.apache.org/jira/browse/GROOVY-9936
Project: Groovy
Issue Type: Bug
Components: parser-antlr4
Reporter: Paul King
Assignee: Paul King
As an optimisation for parsing, both parsers treat statements like:
{code}
int var1
Foo var2
Bar var3
{code}
as variable declarations due to the starting capital letter of the first term
(for non-primitives).
And the following are treated by both parsers as command expressions:
{code}
foo x
bar y
{code}
due to the lowercase starting letter of the first term. If
A difference in behavior can be noted for cases starting with underscore or
dollar (the only other characters available for the first letter of a class
name):
{code}
_foo bar
$bar baz
{code}
These were command expression for the old parser and are being coerced to
variable declarations in the Parrot parser.
We need to decide whether to alter these last two cases for backwards
compatibility or whether
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