interpreter/preprocessor/faust-0.9.47mr3/compiler/signals/subsignals.cpp

   1 #include <signals.hh>
   2 #include <property.hh>
   3
   4 /**
   5  * Extract the sub signals of a signal expression, that is not
   6  * necesseraly all the subtrees.
   7  * @param sig the signals
   8  * @param vsigs a reference to the vector where the subsignals will be placed
   9  * @return the number of subsignals
  10  */
  11
  12 int     getSubSignals (Tree sig, vector<Tree>& vsigs, bool visitgen)
  13 {
  14         vsigs.clear();
  15
  16         int     i;
  17         double  r;
  18     Tree        c, sel, x, y, z, u, v, var, le, label, id, ff, largs, type, name, file;
  19
  20                  if ( getUserData(sig) )                                        { for (int i=0; i<sig->arity(); i++) { vsigs.push_back(sig->branch(i)); }
  21                                                                                                           return sig->arity(); }
  22         else if ( isSigInt(sig, &i) )                                   { return 0; }
  23         else if ( isSigReal(sig, &r) )                                  { return 0; }
  24         else if ( isSigInput(sig, &i) )                                 { return 0;                     }
  25         else if ( isSigOutput(sig, &i, x) )                     { vsigs.push_back(x); return 1; }
  26
  27         else if ( isSigDelay1(sig, x) )                                 { vsigs.push_back(x); return 1; }
  28
  29         else if ( isSigFixDelay(sig, x, y) )                    { vsigs.push_back(x); vsigs.push_back(y); return 2;     }
  30     else if ( isSigPrefix(sig, x, y) )              { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  31         else if ( isSigIota(sig, x) )                                   { vsigs.push_back(x); return 1; }
  32
  33         else if ( isSigBinOp(sig, &i, x, y) )                   { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  34         else if ( isSigFFun(sig, ff, largs) )                   { int n = 0; while (!isNil(largs)) { vsigs.push_back(hd(largs)); largs = tl(largs); n++; } return n; }
  35     else if ( isSigFConst(sig, type, name, file) )  { return 0; }
  36     else if ( isSigFVar(sig, type, name, file) )    { return 0; }
  37
  38         else if ( isSigTable(sig, id, x, y) )                   { vsigs.push_back(x); vsigs.push_back(y); return 2;     }
  39         else if ( isSigWRTbl(sig, id, x, y, z) )                { vsigs.push_back(x); vsigs.push_back(y); vsigs.push_back(z); return 3; }
  40         else if ( isSigRDTbl(sig, x, y) )                               { vsigs.push_back(x); vsigs.push_back(y); return 2;     }
  41
  42     else if ( isSigDocConstantTbl(sig, x, y) )      { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  43     else if ( isSigDocWriteTbl(sig, x, y, u, v) )       { vsigs.push_back(x); vsigs.push_back(y); vsigs.push_back(u); vsigs.push_back(v); return 4;     }
  44     else if ( isSigDocAccessTbl(sig, x, y) )        { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  45
  46
  47         else if ( isSigSelect2(sig, sel, x, y) )                { vsigs.push_back(sel); vsigs.push_back(x); vsigs.push_back(y); return 3; }
  48         else if ( isSigSelect3(sig, sel, x, y, z) )     { vsigs.push_back(sel); vsigs.push_back(x); vsigs.push_back(y); vsigs.push_back(z); return 4; }
  49
  50         else if ( isSigGen(sig, x) )                                    { if (visitgen) { vsigs.push_back(x); return 1;} else { return 0; } }
  51
  52     else if ( isProj(sig, &i, x) )                  { vsigs.push_back(x); return 1;     }
  53     else if ( isRec(sig, var, le) )                 { vsigs.push_back(le); return 1; }
  54
  55         else if ( isSigIntCast(sig, x) )                                { vsigs.push_back(x); return 1; }
  56         else if ( isSigFloatCast(sig, x) )                              { vsigs.push_back(x); return 1; }
  57
  58         else if ( isSigButton(sig, label) )                     { return 0; }
  59         else if ( isSigCheckbox(sig, label) )                   { return 0; }
  60         else if ( isSigVSlider(sig, label,c,x,y,z) )    { return 0; }
  61         else if ( isSigHSlider(sig, label,c,x,y,z) )    { return 0; }
  62         else if ( isSigNumEntry(sig, label,c,x,y,z) )   { return 0; }
  63
  64         else if ( isSigVBargraph(sig, label,x,y,z) )    { vsigs.push_back(z); return 1; }
  65         else if ( isSigHBargraph(sig, label,x,y,z) )    { vsigs.push_back(z); return 1; }
  66         else if ( isSigAttach(sig, x, y) )                              { vsigs.push_back(x); vsigs.push_back(y); return 2;     }
  67     else if ( isList(sig) )                         { vsigs.push_back(hd(sig)); vsigs.push_back(tl(sig));  return 2; }
  68     else if ( isNil(sig) )                          { return 0; }
  69
  70     // multirate extension
  71
  72     else if ( isSigVectorize(sig, x, y) )           { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  73     else if ( isSigSerialize(sig, x) )              { vsigs.push_back(x); return 1; }
  74     else if ( isSigConcat(sig, x, y) )              { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  75     else if ( isSigVectorAt(sig, x, y) )            { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  76
  77     else if ( isSigUpSample(sig, x, y) )            { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  78     else if ( isSigDownSample(sig, x, y) )          { vsigs.push_back(x); vsigs.push_back(y); return 2; }
  79
  80
  81         else {
  82         cerr << "ERROR in getSubSignals(),   unrecognized signal : " << *sig << endl;
  83                 exit(1);
  84         }
  85         return 0;
  86 }