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# 94b2ccae 22-Jul-2012 Nikita Popov

Fix throwing of exceptions within a generator

If a generator threw an exception and was iterated using foreach (i.e. not
manually) an infinite loop was triggered. The reason was that the

Fix throwing of exceptions within a generator

If a generator threw an exception and was iterated using foreach (i.e. not
manually) an infinite loop was triggered. The reason was that the exception
was not properly rethrown using zend_throw_exception_internal.

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# c9709bfb 19-Jul-2012 Nikita Popov

Remove asterix modifier (*) for generators

Generators are now automatically detected by the presence of a `yield`
expression in their body.

This removes the ZEND_SUSPEND_AND_RET

Remove asterix modifier (*) for generators

Generators are now automatically detected by the presence of a `yield`
expression in their body.

This removes the ZEND_SUSPEND_AND_RETURN_GENERATOR opcode. Instead
additional checks for ZEND_ACC_GENERATOR are added to the fcall_common
helper and zend_call_function.

This also adds a new function zend_generator_create_zval, which handles
the actual creation of the generator zval from an op array.

I feel like I should deglobalize the zend_create_execute_data_from_op_array
code a bit. It currently changes EG(current_execute_data) and
EG(opline_ptr) which is somewhat confusing (given the name).

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Revision tags: php-5.4.5, php-5.3.15, php-5.3.15RC1, php-5.4.5RC1, php-5.3.14, php-5.4.4
# f169b26d 08-Jun-2012 Nikita Popov

Fix backtraces and func_get_args()

To make the generator function show up in backtraces one has to insert an
additional execute_data into the chain, as prev_execute_data->function_state

Fix backtraces and func_get_args()

To make the generator function show up in backtraces one has to insert an
additional execute_data into the chain, as prev_execute_data->function_state
is used to determine the called function.

Adding the additional stack frame is also required for func_get_args(), as
the arguments are fetched from there too. The arguments have to be copied
in order to keep them around. Due to the way they are saved doing so is
quite ugly, so I added another function zend_copy_arguments to zend_execute.c
which handles this.

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# 7b3bfa57 03-Jun-2012 Nikita Popov

Improve backtraces from generators

The current situation is still not perfect, as the generator function itself
does not appear in the stack trace. This makes sense in some way, but it

Improve backtraces from generators

The current situation is still not perfect, as the generator function itself
does not appear in the stack trace. This makes sense in some way, but it
would probably be more helpful if it would show up (with the bound arguments)
after the $generator->xyz() call. This could be misleading too though as the
function is not *really* called there.

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