Method and apparatus for compiler symbol table organization with

Details Method and apparatus for compiler symbol table organization with Method and apparatus for compiler symbol table organization with

1996-01-16

1997-12-23

Oberley, Alvin E.

395708, G06F 945

Patent

active

057014906

ABSTRACT:
A method and apparatus for compiling a source program to yield an object program. A syntactical analyzer stores pointers into an ID table into a parse tree instead of storing identifier names in the parse tree. The ID table has a Current Effective Definition (CED) for each identifier that changes as various blocks of the source program are entered and exited. The CED always points to a location in the symbol table where information about the current definition of the identifier is stored. A syntactical analyzer in the compiler uses the information stored in the parse tree to avoid searching the symbol table.

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"Compilers: Principles, Techniques and Tools", Aho et al., Addison-Wesley, 1988, Chapter 4.
"A new efficient incremental evaluator for attribute grammars": Naini M., Southeastcon, 1988, pp. 386-390.
"Source Encoding Using Syntactic Information Source Models", Robert D. Cameron, IEEE Trans. on Information Theory, 1988, pp. 843-850.

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