diff options
Diffstat (limited to 'src/interp')
| -rw-r--r-- | src/interp/c-util.boot | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/interp/c-util.boot b/src/interp/c-util.boot index beaa874c..6c8cbbc8 100644 --- a/src/interp/c-util.boot +++ b/src/interp/c-util.boot @@ -1499,9 +1499,17 @@ declareGlobalVariables: %List -> %List declareGlobalVariables vars == ["DECLARE",["SPECIAL",:vars]] +++ Return true if `form' contains an EXIT-form that matches +++ the parent node of `form'. +matchingEXIT form == + atomic? form or form.op is 'SEQ => false + form.op is 'EXIT => true + or/[matchingEXIT x for x in form] + simplifySEQ form == atomic? form => form form is ["SEQ",[op,a]] and op in '(EXIT RETURN) => simplifySEQ a + form is ['SEQ,s] and not matchingEXIT s => simplifySEQ s for stmts in tails form repeat stmts.first := simplifySEQ first stmts form |