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Add "fallthrough" keyword, require a flow statement to end case blocks.

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Case blocks in switch statements now must end in a break, return, or
fallthrough statement to give best mix of safety, readability, and
flexibility.

The new fallthrough keyword explicitly allows control to be passed to the
next case block in a switch statement.

Addresses #754.
This commit is contained in:
Jon Siwek 2013-01-16 16:17:17 -06:00
parent 8695053e27
commit be71a42f4c
8 changed files with 150 additions and 33 deletions
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src/SerialTypes.h
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@ -171,6 +171,7 @@ SERIAL_STMT(EVENT_BODY_LIST, 16)
SERIAL_STMT(INIT_STMT, 17)
SERIAL_STMT(NULL_STMT, 18)
SERIAL_STMT(WHEN_STMT, 19)
SERIAL_STMT(FALLTHROUGH_STMT, 20)
#define SERIAL_TYPE(name, val) SERIAL_CONST(name, val, BRO_TYPE)
SERIAL_TYPE(BRO_TYPE, 1)