net.sf.smc

Class SmcSyntaxChecker

java.lang.Object

net.sf.smc.model.SmcVisitor

net.sf.smc.SmcSyntaxChecker

public final class SmcSyntaxChecker
extends SmcVisitor

Performs a global syntax check on the various elements of the abstract syntax tree. This includes:

• Verifying that a start state has been specified and that the state exists.
• If this is C++ code generation that a header file is specified
• If this is Java code generation that the .sm fle and the context class have the same name.
  (Note: Removed as of v. 6.1.0 due to addition of %fsmclass feature).
• If this is TCL code generation that argument parameter types are eith value or reerence.
• That if a transition is defined multiple times within the same state that each transition definition has a unique guard.
• That transition end states are valid states (the state exists and is not the Default state).

Author:

Charles Rapp

See Also:

SmcElement

Constructor Summary

Constructors

Constructor and Description
SmcSyntaxChecker(String fsm, TargetLanguage targetLanguage) Creates a syntax checker for the named FSM and target programming language.

Method Summary

Modifier and Type	Method and Description
List<SmcMessage>	getMessages() Returns a list of warning and error messages.
boolean	isValid() Returns true if no errors were found and false if there are syntax errors.
void	visit(SmcFSM fsm) Verifies that the context class and source files exist.
void	visit(SmcGuard guard) Checks if the guard has a valid end state.
void	visit(SmcMap map) Checks the map's states.
void	visit(SmcParameter parameter) Checks if the parameter types are acceptable.
void	visit(SmcState state) Checks if the state's transitions contain valid end states.
void	visit(SmcTransition transition) Checks the transition guards.

Methods inherited from class net.sf.smc.model.SmcVisitor

visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SmcSyntaxChecker

public SmcSyntaxChecker(String fsm,
                        TargetLanguage targetLanguage)

Creates a syntax checker for the named FSM and target programming language.

Parameters:

fsm - the finite state machine's name.

targetLanguage - the target programming language.

Method Detail

isValid

public boolean isValid()

Returns true if no errors were found and false if there are syntax errors.

Returns:

true if no errors were found and false if there are syntax errors.

getMessages

public List<SmcMessage> getMessages()

Returns a list of warning and error messages.

Returns:

a list of warning and error messages.

visit

public void visit(SmcFSM fsm)

Verifies that the context class and source files exist.

Overrides:

visit in class SmcVisitor

Parameters:

fsm - verify this FSM instance.

visit

public void visit(SmcMap map)

Checks the map's states.

Overrides:

visit in class SmcVisitor

Parameters:

map - verify this FSM map.

visit

public void visit(SmcState state)

Checks if the state's transitions contain valid end states.

Overrides:

visit in class SmcVisitor

Parameters:

state - verify this FSM state.

visit

public void visit(SmcTransition transition)

Checks the transition guards.

Overrides:

visit in class SmcVisitor

Parameters:

transition - check this FSM transition.

visit

public void visit(SmcGuard guard)

Checks if the guard has a valid end state.

Overrides:

visit in class SmcVisitor

Parameters:

guard - verify this FSM guard.

visit

public void visit(SmcParameter parameter)

Checks if the parameter types are acceptable.

Overrides:

visit in class SmcVisitor

Parameters:

parameter - verify this FSM parameter.