static Tree realeval (Tree exp, Tree visited, Tree localValEnv)
{
//Tree def;
Tree fun;
Tree arg;
Tree var, num, body, ldef;
Tree label;
Tree cur, lo, hi, step;
Tree e1, e2, exp2, notused, visited2, lenv2;
Tree rules;
Tree id;
//cerr << "EVAL " << *exp << " (visited : " << *visited << ")" << endl;
//cerr << "REALEVAL of " << *exp << endl;
xtended* xt = (xtended*) getUserData(exp);
// constants
//-----------
if ( xt ||
isBoxInt(exp) || isBoxReal(exp) ||
isBoxWire(exp) || isBoxCut(exp) ||
isBoxPrim0(exp) || isBoxPrim1(exp) ||
isBoxPrim2(exp) || isBoxPrim3(exp) ||
isBoxPrim4(exp) || isBoxPrim5(exp) ||
isBoxFFun(exp) || isBoxFConst(exp) || isBoxFVar(exp) ||
isBoxWaveform(exp)) {
return exp;
// block-diagram constructors
//---------------------------
} else if (isBoxSeq(exp, e1, e2)) {
return boxSeq(eval(e1, visited, localValEnv), eval(e2, visited, localValEnv));
} else if (isBoxPar(exp, e1, e2)) {
return boxPar(eval(e1, visited, localValEnv), eval(e2, visited, localValEnv));
} else if (isBoxRec(exp, e1, e2)) {
return boxRec(eval(e1, visited, localValEnv), eval(e2, visited, localValEnv));
} else if (isBoxSplit(exp, e1, e2)) {
return boxSplit(eval(e1, visited, localValEnv), eval(e2, visited, localValEnv));
} else if (isBoxMerge(exp, e1, e2)) {
return boxMerge(eval(e1, visited, localValEnv), eval(e2, visited, localValEnv));
// Modules
//--------
} else if (isBoxAccess(exp, body, var)) {
Tree val = eval(body, visited, localValEnv);
if (isClosure(val, exp2, notused, visited2, lenv2)) {
// it is a closure, we have an environment to access
return eval(closure(var,notused,visited2,lenv2), visited, localValEnv);
} else {
evalerror(getDefFileProp(exp), getDefLineProp(exp), "no environment to access", exp);
}
//////////////////////en chantier////////////////////////////
} else if (isBoxModifLocalDef(exp, body, ldef)) {
Tree val = eval(body, visited, localValEnv);
if (isClosure(val, exp2, notused, visited2, lenv2)) {
// we rebuild the closure using a copy of the original environment
// modified with some new definitions
Tree lenv3 = copyEnvReplaceDefs(lenv2, ldef, visited2, localValEnv);
return eval(closure(exp2,notused,visited2,lenv3), visited, localValEnv);
} else {
evalerror(getDefFileProp(exp), getDefLineProp(exp), "not a closure", val);
evalerror(getDefFileProp(exp), getDefLineProp(exp), "no environment to access", exp);
}
///////////////////////////////////////////////////////////////////
} else if (isBoxComponent(exp, label)) {
string fname = tree2str(label);
Tree eqlst = gGlobal->gReader.expandlist(gGlobal->gReader.getlist(fname));
Tree res = closure(boxIdent("process"), gGlobal->nil, gGlobal->nil, pushMultiClosureDefs(eqlst, gGlobal->nil, gGlobal->nil));
setDefNameProperty(res, label);
//cerr << "component is " << boxpp(res) << endl;
return res;
} else if (isBoxLibrary(exp, label)) {
string fname = tree2str(label);
Tree eqlst = gGlobal->gReader.expandlist(gGlobal->gReader.getlist(fname));
Tree res = closure(boxEnvironment(), gGlobal->nil, gGlobal->nil, pushMultiClosureDefs(eqlst, gGlobal->nil, gGlobal->nil));
setDefNameProperty(res, label);
//cerr << "component is " << boxpp(res) << endl;
return res;
// user interface elements
//------------------------
} else if (isBoxButton(exp, label)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
//cout << "button label : " << l1 << " become " << l2 << endl;
return ((l1 == l2) ? exp : boxButton(tree(l2)));
} else if (isBoxCheckbox(exp, label)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
//cout << "check box label : " << l1 << " become " << l2 << endl;
return ((l1 == l2) ? exp : boxCheckbox(tree(l2)));
} else if (isBoxVSlider(exp, label, cur, lo, hi, step)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return ( boxVSlider(tree(l2),
tree(eval2double(cur, visited, localValEnv)),
tree(eval2double(lo, visited, localValEnv)),
tree(eval2double(hi, visited, localValEnv)),
tree(eval2double(step, visited, localValEnv))));
} else if (isBoxHSlider(exp, label, cur, lo, hi, step)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return ( boxHSlider(tree(l2),
tree(eval2double(cur, visited, localValEnv)),
tree(eval2double(lo, visited, localValEnv)),
tree(eval2double(hi, visited, localValEnv)),
tree(eval2double(step, visited, localValEnv))));
} else if (isBoxNumEntry(exp, label, cur, lo, hi, step)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return (boxNumEntry(tree(l2),
tree(eval2double(cur, visited, localValEnv)),
tree(eval2double(lo, visited, localValEnv)),
tree(eval2double(hi, visited, localValEnv)),
tree(eval2double(step, visited, localValEnv))));
} else if (isBoxVGroup(exp, label, arg)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return boxVGroup(tree(l2), eval(arg, visited, localValEnv) );
} else if (isBoxHGroup(exp, label, arg)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return boxHGroup(tree(l2), eval(arg, visited, localValEnv) );
} else if (isBoxTGroup(exp, label, arg)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return boxTGroup(tree(l2), eval(arg, visited, localValEnv) );
} else if (isBoxHBargraph(exp, label, lo, hi)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return boxHBargraph(tree(l2),
tree(eval2double(lo, visited, localValEnv)),
tree(eval2double(hi, visited, localValEnv)));
} else if (isBoxVBargraph(exp, label, lo, hi)) {
const char* l1 = tree2str(label);
const char* l2 = evalLabel(l1, visited, localValEnv);
return boxVBargraph(tree(l2),
tree(eval2double(lo, visited, localValEnv)),
tree(eval2double(hi, visited, localValEnv)));
// lambda calculus
//----------------
} else if (isBoxIdent(exp)) {
return evalIdDef(exp, visited, localValEnv);
} else if (isBoxWithLocalDef(exp, body, ldef)) {
return eval(body, visited, pushMultiClosureDefs(ldef, visited, localValEnv));
} else if (isBoxAppl(exp, fun, arg)) {
return applyList( eval(fun, visited, localValEnv),
revEvalList(arg, visited, localValEnv) );
} else if (isBoxAbstr(exp)) {
// it is an abstraction : return a closure
return closure(exp, gGlobal->nil, visited, localValEnv);
} else if (isBoxEnvironment(exp)) {
// environment : return also a closure
return closure(exp, gGlobal->nil, visited, localValEnv);
} else if (isClosure(exp, exp2, notused, visited2, lenv2)) {
if (isBoxAbstr(exp2)) {
// a 'real' closure
return closure(exp2, gGlobal->nil, setUnion(visited,visited2), lenv2);
} else if (isBoxEnvironment(exp2)) {
// a 'real' closure
return closure(exp2, gGlobal->nil, setUnion(visited,visited2), lenv2);
} else {
// it was a suspended evaluation
return eval(exp2, setUnion(visited,visited2), lenv2);
}
// Algorithmic constructions
//--------------------------
} else if (isBoxIPar(exp, var, num, body)) {
int n = eval2int(num, visited, localValEnv);
return iteratePar(var, n, body, visited, localValEnv);
} else if (isBoxISeq(exp, var, num, body)) {
int n = eval2int(num, visited, localValEnv);
return iterateSeq(var, n, body, visited, localValEnv);
} else if (isBoxISum(exp, var, num, body)) {
int n = eval2int(num, visited, localValEnv);
return iterateSum(var, n, body, visited, localValEnv);
} else if (isBoxIProd(exp, var, num, body)) {
int n = eval2int(num, visited, localValEnv);
return iterateProd(var, n, body, visited, localValEnv);
// static
} else if (isBoxInputs(exp, body)) {
int ins, outs;
Tree b = a2sb(eval(body, visited, localValEnv));
if (getBoxType (b, &ins, &outs)) {
return boxInt(ins);
} else {
stringstream error;
error << "ERROR : can't evaluate ' : " << *exp << endl;
throw faustexception(error.str());
}
} else if (isBoxOutputs(exp, body)) {
int ins, outs;
Tree b = a2sb(eval(body, visited, localValEnv));
if (getBoxType (b, &ins, &outs)) {
return boxInt(outs);
} else {
stringstream error;
error << "ERROR : can't evaluate ' : " << *exp << endl;
throw faustexception(error.str());
}
} else if (isBoxSlot(exp)) {
return exp;
} else if (isBoxSymbolic(exp)) {
return exp;
// Pattern matching extension
//---------------------------
} else if (isBoxCase(exp, rules)) {
return evalCase(rules, localValEnv);
} else if (isBoxPatternVar(exp, id)) {
return exp;
//return evalIdDef(id, visited, localValEnv);
} else if (isBoxPatternMatcher(exp)) {
return exp;
} else {
stringstream error;
error << "ERROR : EVAL doesn't intercept : " << *exp << endl;
throw faustexception(error.str());
}
return NULL;
}
/**
* Prepare a "pattern" by replacing variables x by special
* pattern variables ?x.
*
* P[x] -> ?x
* P[x(e)] -> x(P[e])
* P[e(f)] -> P[e](P[f])
* P[e:f] -> P[e]:P[f]
* etc.
*/
static Tree preparePattern(Tree box)
{
// cerr << "preparePattern(" << boxpp(box) << ")" << endl;
int id;
double r;
prim0 p0;
prim1 p1;
prim2 p2;
prim3 p3;
prim4 p4;
prim5 p5;
Tree t1, t2, t3, ff, label, cur, min, max, step, type, name, file, arg,
body, fun, args, ldef, slot,
ident, rules;
xtended* xt = (xtended*)getUserData(box);
// primitive elements
if(xt)
return box;
else if(isBoxIdent(box))
return boxPatternVar(box);
else if(isBoxAppl(box, fun, args))
{
if(isBoxIdent(fun))
return boxAppl(fun, lmap(preparePattern, args));
else
return boxAppl(preparePattern(fun), lmap(preparePattern, args));
}
else if(isBoxAbstr(box, arg, body))
return box;
else if(isBoxInt(box))
return box;
else if(isBoxReal(box, &r))
return box;
else if(isBoxWaveform(box))
return box;
else if(isBoxCut(box))
return box;
else if(isBoxWire(box))
return box;
else if(isBoxPrim0(box, &p0))
return box;
else if(isBoxPrim1(box, &p1))
return box;
else if(isBoxPrim2(box, &p2))
return box;
else if(isBoxPrim3(box, &p3))
return box;
else if(isBoxPrim4(box, &p4))
return box;
else if(isBoxPrim5(box, &p5))
return box;
else if(isBoxWithLocalDef(box, body, ldef))
return boxWithLocalDef(preparePattern(body), ldef);
// foreign elements
else if(isBoxFFun(box, ff))
return box;
else if(isBoxFConst(box, type, name, file))
return box;
else if(isBoxFVar(box, type, name, file))
return box;
// block diagram binary operator
else if(isBoxSeq(box, t1, t2))
return boxSeq(preparePattern(t1), preparePattern(t2));
else if(isBoxSplit(box, t1, t2))
return boxSplit(preparePattern(t1), preparePattern(t2));
else if(isBoxMerge(box, t1, t2))
return boxMerge(preparePattern(t1), preparePattern(t2));
else if(isBoxPar(box, t1, t2))
return boxPar(preparePattern(t1), preparePattern(t2));
else if(isBoxRec(box, t1, t2))
return boxRec(preparePattern(t1), preparePattern(t2));
// iterative block diagram construction
else if(isBoxIPar(box, t1, t2, t3))
return boxIPar(t1, t2, preparePattern(t3));
else if(isBoxISeq(box, t1, t2, t3))
return boxISeq(t1, t2, preparePattern(t3));
else if(isBoxISum(box, t1, t2, t3))
return boxISum(t1, t2, preparePattern(t3));
else if(isBoxIProd(box, t1, t2, t3))
return boxIProd(t1, t2, preparePattern(t3));
// static information
else if(isBoxInputs(box, t1))
return boxInputs(preparePattern(t1));
else if(isBoxOutputs(box, t1))
return boxOutputs(preparePattern(t1));
// user interface
else if(isBoxButton(box, label))
return box;
else if(isBoxCheckbox(box, label))
return box;
else if(isBoxVSlider(box, label, cur, min, max, step))
return box;
else if(isBoxHSlider(box, label, cur, min, max, step))
return box;
else if(isBoxVGroup(box, label, t1))
return boxVGroup(label, preparePattern(t1));
else if(isBoxHGroup(box, label, t1))
return boxHGroup(label, preparePattern(t1));
else if(isBoxTGroup(box, label, t1))
return boxTGroup(label, preparePattern(t1));
else if(isBoxHBargraph(box, label, min, max))
return box;
else if(isBoxVBargraph(box, label, min, max))
return box;
else if(isBoxNumEntry(box, label, cur, min, max, step))
return box;
else if(isNil(box))
return box;
else if(isList(box))
return lmap(preparePattern, box);
else if(isBoxEnvironment(box))
return box;
/* not expected
else if (isClosure(box, abstr, genv, vis, lenv)) {
fout << "closure[" << boxpp(abstr)
<< ", genv = " << envpp(genv)
<< ", lenv = " << envpp(lenv)
<< "]";
}
*/
else if(isBoxComponent(box, label))
return box;
else if(isBoxAccess(box, t1, t2))
return box;
/* not expected
else if (isImportFile(box, label)) {
fout << "import("
<< tree2str(label) << ')';
}
*/
else if(isBoxSlot(box, &id))
return box;
else if(isBoxSymbolic(box, slot, body))
return box;
// Pattern Matching Extensions
else if(isBoxCase(box, rules))
return box;
else if(isBoxPatternVar(box, ident))
return box;
// None of the previous tests succeded, then it is not a valid box
else
{
cerr << "Error in preparePattern() : " << *box << " is not a valid box" << endl;
exit(1);
}
return box;
}
/**
* Simplify inside a block-diagram : S[A*B] => S[A]*S[B]
*/
Tree insideBoxSimplification (Tree box)
{
int i;
double r;
prim0 p0;
prim1 p1;
prim2 p2;
prim3 p3;
prim4 p4;
prim5 p5;
Tree t1, t2, ff, label, cur, min, max, step, type, name, file, slot, body;
xtended* xt = (xtended*)getUserData(box);
// Extended Primitives
if (xt) {
return box;
}
// Numbers and Constants
else if (isBoxInt(box, &i)) {
return box;
}
else if (isBoxReal(box, &r)) {
return box;
}
else if (isBoxFConst(box, type, name, file)) {
return box;
}
else if (isBoxFVar(box, type, name, file)) {
return box;
}
// Wire and Cut
else if (isBoxCut(box)) {
return box;
}
else if (isBoxWire(box)) {
return box;
}
// Primitives
else if (isBoxPrim0(box, &p0)) {
return box;
}
else if (isBoxPrim1(box, &p1)) {
return box;
}
else if (isBoxPrim2(box, &p2)) {
return box;
}
else if (isBoxPrim3(box, &p3)) {
return box;
}
else if (isBoxPrim4(box, &p4)) {
return box;
}
else if (isBoxPrim5(box, &p5)) {
return box;
}
else if (isBoxFFun(box, ff)) {
return box;
}
// User Interface Widgets
else if (isBoxButton(box, label)) {
return box;
}
else if (isBoxCheckbox(box, label)) {
return box;
}
else if (isBoxVSlider(box, label, cur, min, max, step)) {
return box;
}
else if (isBoxHSlider(box, label, cur, min, max, step)) {
return box;
}
else if (isBoxNumEntry(box, label, cur, min, max, step)) {
return box;
}
else if (isBoxVBargraph(box, label, min, max)) {
return box;
}
else if (isBoxHBargraph(box, label, min, max)) {
return box;
}
// User Interface Groups
else if (isBoxVGroup(box, label, t1)) {
return boxVGroup(label, boxSimplification(t1));
}
else if (isBoxHGroup(box, label, t1)) {
return boxHGroup(label, boxSimplification(t1));
}
else if (isBoxTGroup(box, label, t1)) {
return boxTGroup(label, boxSimplification(t1));
}
// Slots and Symbolic Boxes
else if (isBoxSlot(box)) {
return box;;
}
else if (isBoxSymbolic(box, slot, body)){
Tree b = boxSimplification(body);
return boxSymbolic(slot,b);
}
// Block Diagram Composition Algebra
else if (isBoxSeq(box, t1, t2)) {
Tree s1 = boxSimplification(t1);
Tree s2 = boxSimplification(t2);
return boxSeq(s1,s2);
}
else if (isBoxPar(box, t1, t2)) {
Tree s1 = boxSimplification(t1);
Tree s2 = boxSimplification(t2);
return boxPar(s1,s2);
}
else if (isBoxSplit(box, t1, t2)) {
Tree s1 = boxSimplification(t1);
Tree s2 = boxSimplification(t2);
return boxSplit(s1,s2);
}
else if (isBoxMerge(box, t1, t2)) {
Tree s1 = boxSimplification(t1);
Tree s2 = boxSimplification(t2);
return boxMerge(s1,s2);
}
else if (isBoxRec(box, t1, t2)) {
Tree s1 = boxSimplification(t1);
Tree s2 = boxSimplification(t2);
return boxRec(s1,s2);
}
stringstream error;
error << "ERROR in file " << __FILE__ << ':' << __LINE__ << ", unrecognised box expression : " << *box << endl;
throw faustexception(error.str());
return 0;
}