Package org.javacc.csharp

Class ParserCodeGenerator

  • All Implemented Interfaces:
    org.javacc.parser.ParserCodeGenerator
    class ParserCodeGenerator
extends java.lang.Object
implements org.javacc.parser.ParserCodeGenerator
    Generate the parser.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int ccol  
      private int cline  
      private org.javacc.utils.CodeBuilder.GenericCodeBuilder codeGenerator  
      private org.javacc.parser.Context context  
      private boolean[] firstSet
      An array used to store the first sets generated by the following method.
      (package private) java.util.Hashtable generated  
      private int gensymindex  
      private int indentamt  
      private java.util.Map<org.javacc.parser.Expansion,​java.lang.Integer> internalIndexes  
      private java.util.Map<org.javacc.parser.Expansion,​java.lang.String> internalNames  
      private int jj2Index  
      private boolean jj2LA  
      (package private) org.javacc.parser.Expansion jj3_expansion  
      private boolean lookaheadNeeded  
      private int maskIndex  
      private java.util.List maskVals  
      (package private) int NOOPENSTM
      Constants used in the following method "buildLookaheadChecker".
      (package private) int OPENIF  
      (package private) int OPENSWITCH  
      private org.javacc.parser.ParserData parserData  
      private static java.lang.String parserTemplate  
      private java.util.List phase2list
      These lists are used to maintain expansions for which code generation in phase 2 and phase 3 is required.
      private java.util.List phase3list  
      private java.util.Hashtable phase3table  
      private int switchIndex  
      private boolean xsp_declared  

    • Constructor Summary

      Constructors 
      Constructor Description
      ParserCodeGenerator​(org.javacc.parser.Context context)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) java.lang.String buildLookaheadChecker​(org.javacc.parser.Lookahead[] conds, java.lang.String[] actions)
      This method takes two parameters - an array of Lookahead's "conds", and an array of String's "actions".
      (package private) void buildPhase1Routine​(org.javacc.parser.BNFProduction p)  
      (package private) void buildPhase2Routine​(org.javacc.parser.Lookahead la)  
      (package private) void buildPhase3Routine​(Phase3Data inf, boolean recursive_call)  
      (package private) void dumpFormattedString​(java.lang.String str)  
      private void dumpLookaheads​(org.javacc.parser.Lookahead[] conds, java.lang.String[] actions)  
      void finish​(org.javacc.parser.CodeGeneratorSettings settings, org.javacc.parser.ParserData parserData)  
      private void generate3R​(org.javacc.parser.Expansion e, Phase3Data inf)  
      void generateCode​(org.javacc.parser.CodeGeneratorSettings settings, org.javacc.parser.ParserData parserData)  
      private void GenerateCodeProduction​(org.javacc.parser.CodeProduction production, org.javacc.parser.CodeGeneratorSettings settings, org.javacc.utils.CodeBuilder codeGenerator)  
      private void genFirstSet​(org.javacc.parser.Expansion exp)
      Sets up the array "firstSet" above based on the Expansion argument passed to it.
      private java.lang.String genjj_3Call​(org.javacc.parser.Expansion e)  
      (package private) java.lang.String genReturn​(boolean value)  
      private java.lang.String getTypeForToken()  
      private int internalIndex​(org.javacc.parser.Expansion e)  
      private java.lang.String internalName​(org.javacc.parser.Expansion e)  
      (package private) int minimumSize​(org.javacc.parser.Expansion e)  
      (package private) int minimumSize​(org.javacc.parser.Expansion e, int oldMin)  
      (package private) java.lang.String phase1ExpansionGen​(org.javacc.parser.Expansion e)  
      (package private) void phase1NewLine()  
      private void processProductions​(org.javacc.parser.CodeGeneratorSettings settings, org.javacc.utils.CodeBuilder.GenericCodeBuilder codeGenerator)  
      (package private) void setupPhase3Builds​(Phase3Data inf)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • phase2list

        private final java.util.List phase2list
        These lists are used to maintain expansions for which code generation in phase 2 and phase 3 is required. Whenever a call is generated to a phase 2 or phase 3 routine, a corresponding entry is added here if it has not already been added. The phase 3 routines have been optimized in version 0.7pre2. Essentially only those methods (and only those portions of these methods) are generated that are required. The lookahead amount is used to determine this. This change requires the use of a hash table because it is now possible for the same phase 3 routine to be requested multiple times with different lookaheads. The hash table provides a easily searchable capability to determine the previous requests. The phase 3 routines now are performed in a two step process - the first step gathers the requests (replacing requests with lower lookaheads with those requiring larger lookaheads). The second step then generates these methods. This optimization and the hashtable makes it look like we do not need the flag "phase3done" any more. But this has not been removed yet.

      • phase3list

        private final java.util.List phase3list

      • phase3table

        private final java.util.Hashtable phase3table

      • maskIndex

        private int maskIndex

      • jj2Index

        private int jj2Index

      • lookaheadNeeded

        private boolean lookaheadNeeded

      • maskVals

        private java.util.List maskVals

      • gensymindex

        private int gensymindex

      • indentamt

        private int indentamt

      • jj2LA

        private boolean jj2LA

      • codeGenerator

        private org.javacc.utils.CodeBuilder.GenericCodeBuilder codeGenerator

      • cline

        private int cline

      • ccol

        private int ccol

      • context

        private final org.javacc.parser.Context context

      • internalNames

        private final java.util.Map<org.javacc.parser.Expansion,​java.lang.String> internalNames

      • internalIndexes

        private final java.util.Map<org.javacc.parser.Expansion,​java.lang.Integer> internalIndexes

      • parserData

        private org.javacc.parser.ParserData parserData

      • firstSet

        private boolean[] firstSet
        An array used to store the first sets generated by the following method. A true entry means that the corresponding token is in the first set.

      • NOOPENSTM

        final int NOOPENSTM
        Constants used in the following method "buildLookaheadChecker".
        See Also:
        Constant Field Values

      • switchIndex

        private int switchIndex

      • xsp_declared

        private boolean xsp_declared

      • jj3_expansion

        org.javacc.parser.Expansion jj3_expansion

      • generated

        java.util.Hashtable generated

    • Constructor Detail

      • ParserCodeGenerator

        ParserCodeGenerator​(org.javacc.parser.Context context)

    • Method Detail

      • generateCode

        public void generateCode​(org.javacc.parser.CodeGeneratorSettings settings,
                         org.javacc.parser.ParserData parserData)
        Specified by:
        generateCode in interface org.javacc.parser.ParserCodeGenerator

      • finish

        public void finish​(org.javacc.parser.CodeGeneratorSettings settings,
                   org.javacc.parser.ParserData parserData)
        Specified by:
        finish in interface org.javacc.parser.ParserCodeGenerator

      • GenerateCodeProduction

        private void GenerateCodeProduction​(org.javacc.parser.CodeProduction production,
                                    org.javacc.parser.CodeGeneratorSettings settings,
                                    org.javacc.utils.CodeBuilder codeGenerator)

      • processProductions

        private void processProductions​(org.javacc.parser.CodeGeneratorSettings settings,
                                org.javacc.utils.CodeBuilder.GenericCodeBuilder codeGenerator)

      • internalName

        private java.lang.String internalName​(org.javacc.parser.Expansion e)

      • internalIndex

        private int internalIndex​(org.javacc.parser.Expansion e)

      • genFirstSet

        private void genFirstSet​(org.javacc.parser.Expansion exp)
        Sets up the array "firstSet" above based on the Expansion argument passed to it. Since this is a recursive function, it assumes that "firstSet" has been reset before the first call.

      • dumpLookaheads

        private void dumpLookaheads​(org.javacc.parser.Lookahead[] conds,
                            java.lang.String[] actions)

      • buildLookaheadChecker

        java.lang.String buildLookaheadChecker​(org.javacc.parser.Lookahead[] conds,
                                       java.lang.String[] actions)
        This method takes two parameters - an array of Lookahead's "conds", and an array of String's "actions". "actions" contains exactly one element more than "conds". "actions" are Java source code, and "conds" translate to conditions - so lets say "f(conds[i])" is true if the lookahead required by "conds[i]" is indeed the case. This method returns a string corresponding to the Java code for: if (f(conds[0]) actions[0] else if (f(conds[1]) actions[1] . . . else actions[action.length-1] A particular action entry ("actions[i]") can be null, in which case, a noop is generated for that action.

      • dumpFormattedString

        void dumpFormattedString​(java.lang.String str)

      • buildPhase1Routine

        void buildPhase1Routine​(org.javacc.parser.BNFProduction p)

      • phase1NewLine

        void phase1NewLine()

      • phase1ExpansionGen

        java.lang.String phase1ExpansionGen​(org.javacc.parser.Expansion e)

      • buildPhase2Routine

        void buildPhase2Routine​(org.javacc.parser.Lookahead la)

      • genReturn

        java.lang.String genReturn​(boolean value)

      • generate3R

        private void generate3R​(org.javacc.parser.Expansion e,
                        Phase3Data inf)

      • setupPhase3Builds

        void setupPhase3Builds​(Phase3Data inf)

      • getTypeForToken

        private java.lang.String getTypeForToken()

      • genjj_3Call

        private java.lang.String genjj_3Call​(org.javacc.parser.Expansion e)

      • buildPhase3Routine

        void buildPhase3Routine​(Phase3Data inf,
                        boolean recursive_call)

      • minimumSize

        int minimumSize​(org.javacc.parser.Expansion e)

      • minimumSize

        int minimumSize​(org.javacc.parser.Expansion e,
                int oldMin)