Claude
bc91b9c8d0
Type, record and primitive patterns, guards, sealed exhaustiveness, MatchException via separate compilation, and eight captured transcripts. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
$ javac src/Guards.java && java Guards (25.0.4.1+1-LTS)
|
|
empty string
|
|
short string: abc
|
|
long string: abcdefgh
|
|
negative -4
|
|
int 12
|
|
other
|
|
|
|
$ javac src/Guards.java && java Guards (27+35)
|
|
empty string
|
|
short string: abc
|
|
long string: abcdefgh
|
|
negative -4
|
|
int 12
|
|
other
|
|
|
|
$ javac broken/Dominated.java (25.0.4.1+1-LTS)
|
|
broken/Dominated.java:5: error: this case label is dominated by a preceding case label
|
|
case String s -> "string"; // String is a CharSequence, so this can never be reached
|
|
^
|
|
1 error
|
|
|
|
$ javac broken/Dominated.java (27+35)
|
|
broken/Dominated.java:5: error: this case label is dominated by a preceding case label
|
|
case String s -> "string"; // String is a CharSequence, so this can never be reached
|
|
^
|
|
1 error
|
|
|
|
$ javac broken/GuardBeforeGeneral.java (25.0.4.1+1-LTS)
|
|
broken/GuardBeforeGeneral.java:5: error: this case label is dominated by a preceding case label
|
|
case String s when s.isEmpty() -> "empty string"; // guarded case after the unguarded one
|
|
^
|
|
1 error
|
|
|
|
$ javac broken/GuardBeforeGeneral.java (27+35)
|
|
broken/GuardBeforeGeneral.java:5: error: this case label is dominated by a preceding case label
|
|
case String s when s.isEmpty() -> "empty string"; // guarded case after the unguarded one
|
|
^
|
|
1 error
|