parrotcode continuation PMC
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src/pmc/continuation.pmc

NAME

src/pmc/continuation.pmc - Continuation PMC

DESCRIPTION

A Continuation has a copy of the interpreter's context at the location where the Continuation was constructed. See the Glossary for more information.

Functions

Methods

void init(): Initializes the continuation.
void mark(): Marks the continuation as live.
void destroy(): Destroys the continuation.
PMC *clone(): Creates and returns a clone of the continuation.
PMC *set_pmc(): Assign context.
void set_pointer(void *value): Sets the pointer to the return instruction. Also captures the current dynamic state, and the descriptor address for any returned values.
void *get_pointer(): Returns the pointer to the return instruction.
INTVAL defined()
INTVAL get_bool(): Returns whether the subroutine is defined.
opcode_t *invoke(void *next): Restores the "context" of the interpreter and returns the branch destination to continue execution.
STRING *get_string(): Experimental: return caller info as a STRING.
PMC *caller(): Experimental: return caller PMC or PMCNULL if none.
PMC *continuation(): Experimental: return continuation PMC of this Continuation or PMCNULL if none.

HISTORY

Initial revision by sean 2002/08/04.