FortranAS Artifacts

Every FORTRAN file discovered by FortranAS will be parsed and serialized (when FortranAS is supplied the -p,--parse-fortran-files flag) in a number of formats. This section will detail all of the outputs generated by FortranAS. All output files will be placed in the output directory supplied by -o,--output-directory <arg> (Default output directory: ./output).

All output files will be prefixed by the original input FORTRAN source code file name.

<FORTRAN file name>.json

This is a top level serialization artifact provided by FortranAS. This file will contain all tokens parsed by Antlr4, what lexer was used and metadata regarding the input FORTRAN source code file. This file will also contain the Antlr4 parse tree string which will also be saved to <FORTRAN file name>.antlr4_parse_tree.txt.

<FORTRAN file name>.antlr4_parsing.log

This log file will contain all Antlr4 parser output generated by the input file. If there are Antlr4 parsing errors review this file for the input file in question.

<FORTRAN file name>.log

This is a general log file for FortranAS for the input FORTRAN file. It contains the same data as <FORTRAN file name>.json unstructured.

<FORTRAN file name>.antlr4_parse_tree.txt

This file will contain the Antlr4 parse tree string.

Parse tree string example:

(program (executableProgram (programUnit (mainProgram (programStmt program hello) (mainRange (body (bodyConstruct (executableConstruct (actionStmt (printStmt print (formatIdentifier *) , (outputItemList (expression (level5Expr (equivOperand (orOperand (andOperand (level4Expr (level3Expr (level2Expr (addOperand (multOperand (level1Expr (primary \u0027Hello, World!\u0027)))))))))))))))))) (endProgramStmt end program hello))))) \u003cEOF\u003e)

<FORTRAN file name>.parse_tree.json

This file contains the Antlr4 parse tree converted to a generic tree data structure and annotated with available metadata serialized as JSON.

<FORTRAN file name>.abstract_syntax_tree.json

This file contains a translated version of the generic parse tree. The parse tree is translated to a abstract syntax tree by applying strategies to prune, promote, replace, and merge nodes.

<FORTRAN file name>.parse_tree.dot

This is the same data structure provided by <FORTRAN file name>.parse_tree.json represented in a GraphViz DOT format for visualization. This can be converted to svg and png by using the shell script tools/dot_converter.sh.

Example parse tree DOT file for hello_world.f90:

<FORTRAN file name>.abstract_syntax_tree.dot

This is the same data structure provided by <FORTRAN file name>.abstract_syntax_tree.json represented in a GraphViz DOT format for visualization. This can be converted to svg and png by using the shell script tools/dot_converter.sh.

Example abstract syntax tree DOT file for hello_world.f90: