Class ScopeParser

  • public class ScopeParser
    extends Object
    Parse args, return values, locals

    rule[arg1, arg2, ..., argN] returns [ret1, ..., retN]

    text is target language dependent. Java/C#/C/C++ would use "int i" but ruby/python would use "i". Languages with postfix types like Go, Swift use "x : T" notation or "T x".

    • Constructor Detail

      • ScopeParser

        public ScopeParser()
    • Method Detail

      • parseTypedArgList

        public static AttributeDict parseTypedArgList​(ActionAST action,
                                                      String s,
                                                      Grammar g)
        Given an arg or retval scope definition list like

        Map<String, String>, int[] j3, char *foo32[3]


        int i=3, j=a[34]+20

        convert to an attribute scope.

      • parseAttributeDef

        public static Attribute parseAttributeDef​(ActionAST action,
                                                  Pair<String,​Integer> decl,
                                                  Grammar g)
        For decls like "String foo" or "char *foo32[]" compute the ID and type declarations. Also handle "int x=3" and 'T t = new T("foo")' but if the separator is ',' you cannot use ',' in the initvalue unless you escape use "\," escape.
      • splitDecls

        public static List<Pair<String,​Integer>> splitDecls​(String s,
                                                                  int separatorChar)
        Given an argument list like

        x, (*a).foo(21,33), 3.2+1, '\n', "a,oo\nick", {bl, "fdkj"eck}, ["cat\n,", x, 43]

        convert to a list of attributes. Allow nested square brackets etc... Set separatorChar to ';' or ',' or whatever you want.

      • _splitArgumentList

        public static int _splitArgumentList​(String actionText,
                                             int start,
                                             int targetChar,
                                             int separatorChar,
                                             List<Pair<String,​Integer>> args)