NAME

src/pmc/lexpad.pmc - LexPad PMC

DESCRIPTION

These are the vtable functions for the lexpad PMC.

LexPad provides a Hash interface for lexical fetch/store needed:

    struct_val ... Context *ctx
    pmc_val    ... LexInfo

Functions

static void throw_wrong_register_type(PARROT_INTERP, STRING *name)

static void throw_lexical_not_found(PARROT_INTERP, STRING *name)

Helper functions for common exceptions.

static HashBucket * register_bucket(PARROT_INTERP, PMC *info, STRING *name)

Helper for register_number_ functions.

static INTVAL register_number_for_get(PARROT_INTERP, PMC *info, STRING *name, INTVAL reg_type)

Locates the register number for getting the specified name and type of lexical.

static INTVAL register_number_for_set(PARROT_INTERP, PMC *info, STRING *name, INTVAL reg_type)

Locates the register number for setting the specified name and type of lexical.

init_pmc(PMC *lexinfo)

Initialize the LexPad PMC and remember the associate lexinfo.

void set_pointer(void *)

Initialize the LexPad PMC and remember the associate context.

INTVAL elements()

Returns the number of elements in the hash.

INTVAL exists_keyed(PMC *name)

INTVAL exists_keyed_str(STRING *name)

Returns whether a lexical name exists in the hash.

PMC *get_pmc_keyed_str(STRING *name)

PMC *get_pmc_keyed(PMC *name)

Return the lexical with the given name, or NULL (not PMCNULL), if the lexical doesn't exist.

void set_pmc_keyed(PMC *name, PMC *value)

void set_pmc_keyed_str(STRING *name, PMC *value)

Set the lexical with the given name to value. If the lexical name doesn't exist, it is created.

PMC *get_lexinfo()

Return the LexInfo PMC, if any or a Null PMC.

PMC *get_iter()

Get iterator for declared lexicals.

INTVAL register_type(STRING *name)

Returns a number based on the type of the variable named name.

• -1 = Not Found
• 0 = Integer
• 1 = Num
• 2 = String
• 3 = PMC

SEE ALSO

docs/pdds/pdd20_lexical_vars.pod, src/pmc/lexinfo.pmc.