[GROOVY-5652] Semicolon required after coercing to a parameterized (generic) type containing a parameterized (generic) type as its only or last type argument when there is no space between the ending ">>"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.6
• Fix Version/s: 2.6.0-alpha-1
• Component/s: parser-antlr2
• Assignee: Daniel Sun
• Reporter: Amy Chuo
• Created: 01/Aug/12 15:58
• Updated: 06/Mar/18 23:25
• Resolved: 02/May/17 02:12

Description

It seems that after coercing an object to a parameterized (generic) type containing a parameterized (generic) type as its only or last type argument without putting any space between the ending ">>", a semicolon is needed.

Example:

$ groovy -v
Groovy Version: 1.8.6 JVM: 1.6.0_30 Vendor: Sun Microsystems Inc. OS: Linux
$ groovy -e "def list = [1,2,3,4] as List<Integer>
println list
println 'bye'" # This works fine.
[1, 2, 3, 4]
bye
$ groovy -e "def list = [[1,2],[3,4]] as List<List<Integer>>
println list
println 'bye'" # This should work fine, but does not.
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
script_from_command_line: 2: expecting EOF, found 'println' @ line 2, column 1.
println list
^

1 error

$ groovy -e "def list = [[1,2],[3,4]] as List<List<Integer> >
println list
println 'bye'" # After adding a space between ">>", this works fine.
[[1, 2], [3, 4]]
bye
$ groovy -e "def list = [[1,2],[3,4]] as List<List<Integer>>;
println list
println 'bye'" # Or, after adding a semicolon, this works fine.
[[1, 2], [3, 4]]
bye
$

Issue Links

• duplicates: GROOVY-8015 Strange groovy behavior
• is duplicated by: GROOVY-7972 Strange compilation error with an "as" cast and a nested generics map