sigvisitor.hh

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#ifndef __SIGVISITOR__
#define __SIGVISITOR__

#include "signals.hh"

struct sigvisitor
{
    // predefined visit scheme
    void visit(Tree sig);
    
    // Unrecognized signal (default handler)
    virtual void visitError     (Tree sig);
    
    virtual ~sigvisitor() {}
    
    //---------------abstract methods---------------
    // numbers
    virtual void visitInt       (Tree sig, int i) = 0;
    virtual void visitReal      (Tree sig, double r) = 0;
    
    // audio inputs-outputs
    virtual void visitInput     (Tree sig, int i) = 0;
    virtual void visitOutput    (Tree sig, int i, Tree s) = 0;
    
    // fixed size delays
    virtual void visitDelay1    (Tree sig, Tree s) = 0;
    virtual void visitPrefix    (Tree sig, Tree s1, Tree s2) = 0;
    virtual void visitFixDelay  (Tree sig, Tree s1, Tree s2) = 0;
    
    // numerical operations 
    virtual void visitBinOp     (Tree sig, int opcode, Tree s1, Tree s2) = 0;
    virtual void visitIntCast   (Tree sig, Tree s) = 0;
    virtual void visitFloatCast (Tree sig, Tree s) = 0;
    virtual void visitFFun      (Tree sig, Tree ff, Tree ls) = 0;
    virtual void visitFConst    (Tree sig, Tree type, Tree name, Tree file) = 0;
    virtual void visitFVar      (Tree sig, Tree type, Tree name, Tree file) = 0;
    
    // user interface
    virtual void visitButton    (Tree sig, Tree label) = 0;
    virtual void visitCheckbox  (Tree sig, Tree label) = 0;
    virtual void visitVSlider   (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) = 0;
    virtual void visitHSlider   (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) = 0;
    virtual void visitNumEntry  (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) = 0;
    virtual void visitVBargraph (Tree sig, Tree label, Tree min, Tree max, Tree s1) = 0;
    virtual void visitHBargraph (Tree sig, Tree label, Tree min, Tree max, Tree s1) = 0;
    virtual void visitAttach    (Tree sig, Tree s1, Tree s2) = 0;
    
    // recursive
    virtual void visitRec       (Tree sig, Tree var, Tree body) = 0;
    virtual void visitRef       (Tree sig, Tree var) = 0; 
    virtual void visitProj      (Tree sig, int i, Tree s1) = 0;
    
    // Tables
    virtual void visitTable     (Tree sig, Tree id, Tree s1, Tree s2) = 0;
    virtual void visitWRTbl     (Tree sig, Tree id, Tree s1, Tree s2, Tree s3) = 0;
    virtual void visitRDTbl     (Tree sig, Tree s1, Tree s2) = 0;  
    virtual void visitGen       (Tree sig, Tree s1) = 0;

    virtual void visitDocConstantTbl    (Tree sig, Tree s1, Tree s2) = 0;
    virtual void visitDocWriteTbl       (Tree sig, Tree s1, Tree s2, Tree s3, Tree s4) = 0;
    virtual void visitDocAccessTbl      (Tree sig, Tree s1, Tree s2) = 0;

    // Selectors
    virtual void visitSelect2   (Tree sig, Tree sel, Tree s1, Tree s2) = 0; 
    virtual void visitSelect3   (Tree sig, Tree sel, Tree s1, Tree s2, Tree s3) = 0; 

    // Tuples
    virtual void visitTuple         (Tree sig, int mod, Tree ls) = 0; 
    virtual void visitTupleAccess   (Tree sig, Tree ts, Tree idx) = 0; 
    
    // List of signals
    virtual void visitList      (Tree lsig) = 0;
};

struct fullvisitor : sigvisitor
{
    // numbers
    virtual void visitInt       (Tree sig, int i)                               {}
    virtual void visitReal      (Tree sig, double r)                            {}
    
    // audio inputs-outputs
    virtual void visitInput     (Tree sig, int i)                               {}
    virtual void visitOutput    (Tree sig, int i, Tree s)                       { visit(s);}
    
    // fixed size delays
    virtual void visitDelay1    (Tree sig, Tree s)                              { visit(s);}
    virtual void visitPrefix    (Tree sig, Tree s1, Tree s2)                    { visit(s1); visit(s2); }
    virtual void visitFixDelay  (Tree sig, Tree s1, Tree s2)                    { visit(s1); visit(s2); }
    
    // numerical operations 
    virtual void visitIntCast   (Tree sig, Tree s)                              { visit(s);}
    virtual void visitFloatCast (Tree sig, Tree s)                              { visit(s);}
    virtual void visitBinOp     (Tree sig, int op, Tree s1, Tree s2)            { visit(s1); visit(s2); }
    virtual void visitFFun      (Tree sig, Tree ff, Tree ls)                    { visit(ls); }
    virtual void visitFConst    (Tree sig, Tree type, Tree name, Tree file)     {}
    virtual void visitFVar      (Tree sig, Tree type, Tree name, Tree file)     {}
    
    // user interface
    virtual void visitButton    (Tree sig, Tree label)                          {}
    virtual void visitCheckbox  (Tree sig, Tree label)                          {}
    virtual void visitVSlider   (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) {}
    virtual void visitHSlider   (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) {}
    virtual void visitNumEntry  (Tree sig, Tree label, Tree cur, Tree min, Tree max, Tree step) {}
    virtual void visitVBargraph (Tree sig, Tree label, Tree min, Tree max, Tree s) { visit(s);}
    virtual void visitHBargraph (Tree sig, Tree label, Tree min, Tree max, Tree s) { visit(s);}
    virtual void visitAttach    (Tree sig, Tree s1, Tree s2)                    { visit(s1); visit(s2); }
    
    // recursive
    virtual void visitRec       (Tree sig, Tree var, Tree body)                 { visit(body); }
    virtual void visitRef       (Tree sig, Tree var)                            { } 
    virtual void visitProj      (Tree sig, int i, Tree s)                       { visit(s); }
    
    // Tables
    virtual void visitTable     (Tree sig, Tree id, Tree s1, Tree s2)           { visit(s1); visit(s2); }
    virtual void visitWRTbl     (Tree sig, Tree id, Tree s1, Tree s2, Tree s3)  { visit(s1); visit(s2); visit(s3); }
    virtual void visitRDTbl     (Tree sig, Tree s1, Tree s2)                    { visit(s1); visit(s2); }  
    virtual void visitGen       (Tree sig, Tree s1)                             { visit(s1); }
    
    // Selectors
    virtual void visitSelect2   (Tree sig, Tree sel, Tree s1, Tree s2)          { visit(sel); visit(s1); visit(s2); } 
    virtual void visitSelect3   (Tree sig, Tree sel, Tree s1, Tree s2, Tree s3) { visit(sel); visit(s1); visit(s2); visit(s3); } 

    // Tuples
    virtual void visitTuple         (Tree sig, int mod, Tree ls)                { visit(ls); }
    virtual void visitTupleAccess   (Tree sig, Tree ts, Tree idx)               { visit(ts); visit(idx); }

    // List of signals
    virtual void visitList      (Tree lsig)                                     { while (!isNil(lsig)) { visit(hd(lsig)); lsig=tl(lsig); }}
};

#endif