LR.parser

LR.parser()->kernel()->add_item()

Class LR.parser()->kernel

Description

Implements an LR(1) state

Variable rules

multiset(rule) LR.parser.kernel.rules

Description

Used to check if a rule already has been added when doing closures.

Variable items

array(item) LR.parser.kernel.items

Description

Contains the items in this state.

Variable item_id_to_item

mapping(int:item) LR.parser.kernel.item_id_to_item

Description

Used to lookup items given rule and offset

Variable symbol_items

mapping(int:multiset(item)) LR.parser.kernel.symbol_items

Description

Contains the items whose next symbol is this non-terminal.

Variable action

mapping(int|string:kernel|rule) LR.parser.kernel.action

Description

The action table for this state

 object(kernel)    SHIFT to this state on this symbol.
 object(rule)      REDUCE according to this rule on this symbol.
 

Variable closure_set

multiset LR.parser.kernel.closure_set

Description

The symbols that closure has been called on.