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Allow 'continue' inside 'try' clause

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SF patch 102989 by Thomas Wouters
This commit is contained in:
Jeremy Hylton 2001-02-01 22:48:12 +00:00
parent 1bbc048310
commit 3faa52ecc4
9 changed files with 74 additions and 45 deletions
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21
Python/compile.c
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@ -5,7 +5,7 @@
XXX add __doc__ attribute == co_doc to code object attributes?
XXX (it's currently the first item of the co_const tuple)
XXX Generate simple jump for break/return outside 'try...finally'
XXX Allow 'continue' inside try-finally
XXX Allow 'continue' inside finally clause of try-finally
XXX New opcode for loading the initial index for a for loop
XXX other JAR tricks?
*/
@ -3247,19 +3247,24 @@ com_continue_stmt(struct compiling *c, node *n)
}
else {
int j;
for (j = 0; j <= i; ++j) {
for (j = i-1; j >= 0; --j) {
if (c->c_block[j] == SETUP_LOOP)
break;
}
if (j < i+1) {
if (j >= 0) {
/* there is a loop, but something interferes */
for (++j; j <= i; ++j) {
if (c->c_block[i] == SETUP_EXCEPT
|| c->c_block[i] == SETUP_FINALLY) {
com_error(c, PyExc_SyntaxError,
"'continue' not supported inside 'try' clause");
for (; i > j; --i) {
if (c->c_block[i] == SETUP_EXCEPT ||
c->c_block[i] == SETUP_FINALLY) {
com_addoparg(c, CONTINUE_LOOP,
c->c_begin);
return;
}
if (c->c_block[i] == END_FINALLY) {
com_error(c, PyExc_SyntaxError,
"'continue' not supported inside 'finally' clause");
return;
}
}
}
com_error(c, PyExc_SyntaxError,