Expression evaluation in a multi-language debugger

Details Expression evaluation in a multi-language debugger Expression evaluation in a multi-language debugger

1995-10-06

1998-12-01

Voeltz, Emanuel Todd

G06F 945

Patent

active

058451218

ABSTRACT:
A method and apparatus for evaluating expressions in a multi-language debugger. Operandi in an expression are first normalized, and then evaluation routines written in the language of the expression to be evaluated are called. A program storage device, readable by a computer having a memory, tangibly embodying a program of instruction executable by the computer, performs the steps of identifying an operand type for an expression; normalizing the operand; calling a native language routine associated with the expression to produce a result; and un-normalizing the result. Thus, the need for very complex expression evaluation routines is obviated. Further, the native language routines need handle only normalized operandi rather than every variation of each data type.

REFERENCES:
patent: 5577253 (1996-11-01), Blickstein
patent: 5613117 (1997-03-01), Davidson et al.
patent: 5630137 (1997-05-01), Carney
patent: 5659753 (1997-08-01), Murphy et al.

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