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Terminating statements

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A terminating statement prevents execution of all statements that lexically appear after it in the same block. The following statements are terminating:

  1. A "return" or "goto" statement.
  2. A call to the built-in function panic.
  3. A block in which the statement list ends in a terminating statement.
  4. An "if" statement in which:
    • the "else" branch is present, and
    • both branches are terminating statements.
  5. A "for" statement in which:
    • there are no "break" statements referring to the "for" statement, and
    • the loop condition is absent.
  6. A "switch" statement in which:
    • there are no "break" statements referring to the "switch" statement,
    • there is a default case, and
    • the statement lists in each case, including the default, end in a terminating statement, or a possibly labeled "fallthrough" statement.
  7. A "select" statement in which:
    • there are no "break" statements referring to the "select" statement, and
    • the statement lists in each case, including the default if present, end in a terminating statement.
  8. A labeled statement labeling a terminating statement.

All other statements are not terminating.

A statement list ends in a terminating statement if the list is not empty and its final non-empty statement is terminating.

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