simkin
Interface StatementStepper

public interface StatementStepper

This interface is implemented by objects which are called by the Interpreter when statements are executed

Method Summary

void	breakpoint(StackFrame frame) This method is called if the interpreter encounters a breakpoint command.
boolean	compoundStatementExecuted(StackFrame frame) This method is called each time a compound statement is executed by the interpreter, just before the statement is performed
boolean	exceptionEncountered(StackFrame frame, java.lang.Exception e, java.lang.String desc) This method is called if an exception is encountered while executing a script.
boolean	statementExecuted(StackFrame frame, int statement_type) This method is called each time a statement is executed by the interpreter, just before the statement is performed

Method Detail

statementExecuted

public boolean statementExecuted(StackFrame frame,
                                 int statement_type)

This method is called each time a statement is executed by the interpreter, just before the statement is performed

Parameters:

frame - the current stack frame

statement_type - an integer indicating the type of statement, a constant s_ value from the ParseNode class

Returns:

false to halt the execution of the current method

compoundStatementExecuted

public boolean compoundStatementExecuted(StackFrame frame)

This method is called each time a compound statement is executed by the interpreter, just before the statement is performed

Parameters:

frame - the current stack frame

Returns:

false to halt the execution of the current method

exceptionEncountered

public boolean exceptionEncountered(StackFrame frame,
                                    java.lang.Exception e,
                                    java.lang.String desc)

This method is called if an exception is encountered while executing a script.

Parameters:

frame - the current stack frame

e - the exception that has occurred

desc - the exception description without location information

Returns:

true to throw the exception, false to ignore and continue

breakpoint

public void breakpoint(StackFrame frame)

This method is called if the interpreter encounters a breakpoint command.

Parameters:

frame - the current stack frame