public interface yyDebug
jay
.
For details consult the skeleton files.
The interface expects that the scanner can be queried more then
once for a value corresponding to a token.Modifier and Type | Method and Description |
---|---|
void |
accept(Object value)
parse is successful.
|
void |
discard(int state,
int token,
String name,
Object value)
discarding token during error recovery.
|
void |
error(String message)
syntax error.
|
void |
lex(int state,
int token,
String name,
Object value)
just called the scanner.
|
void |
pop(int state)
discarding a state during error recovery.
|
void |
push(int state,
Object value)
just pushed the state/value stack.
|
void |
reduce(int from,
int to,
int rule,
String text,
int len)
rule completed, calling action.
|
void |
reject()
error recovery failed, about to throw yyException.
|
void |
shift(int from,
int to)
moving to a new state following an action.
|
void |
shift(int from,
int to,
int errorFlag)
moving to a new state because of input or error.
|
void push(int state, Object value)
state
- current state.value
- current value.void lex(int state, int token, String name, Object value)
state
- current state.token
- just obtained from scanner.name
- of token in grammar.value
- will be obtained from scanner.void shift(int from, int to, int errorFlag)
from
- current state.to
- next state.errorFlag
- value in next state.void pop(int state)
state
- discarded.void reject()
void discard(int state, int token, String name, Object value)
state
- current state.token
- discarded.name
- of token in grammar.value
- will be obtained from scanner.void reduce(int from, int to, int rule, String text, int len)
from
- current state.to
- state to be uncovered.rule
- number of completed right-hand side.text
- text of rule.len
- number of symbols in rule.void shift(int from, int to)
from
- current state.to
- next state.void accept(Object value)
value
- to be returned by yyparse().void error(String message)
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