[GROOVY-1370] Improve error messages on failed compilation

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0-JSR-5
• Fix Version/s: 1.0
• Component/s: parser-antlr2
• Assignee: Unassigned
• Reporter: Guillaume Sauthier
• Created: 21/Jun/06 08:26
• Updated: 23/Dec/07 06:42
• Resolved: 23/Dec/07 06:42

Description

Some failed compilations yield ugly error messages:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed, CommandLine.groovy: 2: Unexpected node type: DYNAMIC_MEMBER found when expecting type: an identifier at line: 2 column: 6. File: CommandLine.groovy @ line 2, column 6.
1 Error

The line information is written 3 times, the cryptic "startup failed" doesn't really mean anything useful.
Instead, we should print a friendlier message like:

Compilation failed: CommandLine.groovy: Unexpected node type: DYNAMIC_MEMBER found when expecting type: an identifier
File: CommandLine.groovy @ line 2, column 6.
1 error