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#pragma once
#include <cstdint>
#include <functional>
#include <iostream>
#include <map>
#include <sstream>
#include <string>
#include <unordered_map>
#include <vector>
#include "symbol.hh"
//=====================================================================================================================
// A Faust Algebra is a class grouping the set of primitive operations available
// on Faust signals. All these operations are callable directly or via dispatch
// tables according to their arity and name. The dispatch tables are typically
// used when recursively visiting an expressions tree while applying an algebra.
// Derived algebras just have to specify the type T and implement the primitive
// operations for this type T. Example of derived algebras are Interval
// Algebras, TypeInference Algebras, Expression Tree Algebras, Compiler
// Algebras, etc.
//=====================================================================================================================
template <typename T>
class FaustAlgebra {
public:
//--------------------------------------------------------------------------------
// Dispatch tables
//--------------------------------------------------------------------------------
// the various types of primitive operations
using unfunc = T (FaustAlgebra::*)(const T&);
using binfunc = T (FaustAlgebra::*)(const T&, const T&);
using trifunc = T (FaustAlgebra::*)(const T&, const T&, const T&);
using quadfunc = T (FaustAlgebra::*)(const T&, const T&, const T&, const T&);
using quinfunc = T (FaustAlgebra::*)(const T&, const T&, const T&, const T&, const T&);
using varfunc = T (FaustAlgebra::*)(const std::vector<T>& w);
// The dispatch tables
std::map<Sym, unfunc> fUnFuncs;
std::map<Sym, binfunc> fBinFuncs;
std::map<Sym, trifunc> fTriFuncs;
std::map<Sym, quadfunc> fQuadFuncs;
std::map<Sym, quinfunc> fQuinFuncs;
std::map<Sym, varfunc> fVarFuncs;
//--------------------------------------------------------------------------------
// List of all the primitive operations
//--------------------------------------------------------------------------------
// Injections of external values (numbers and strings)
virtual T Nil() = 0;
virtual T IntNum(int x) = 0;
virtual T Int64Num(int64_t x) = 0;
virtual T FloatNum(double x) = 0;
virtual T Label(const std::string& s) = 0;
// Used when searching for fixpoint
virtual T FixPointUpdate(const T& x, const T& y) = 0;
// Input Output Operations
virtual T Input(const T& chan) = 0;
virtual T Output(const T& chan, const T& x) = 0;
// User Interface Elements
virtual T Button(const T& name) = 0;
virtual T Checkbox(const T& name) = 0;
virtual T VSlider(const T& name, const T& init, const T& lo, const T& hi, const T& step) = 0;
virtual T HSlider(const T& name, const T& init, const T& lo, const T& hi, const T& step) = 0;
virtual T HBargraph(const T& name, const T& lo, const T& hi) = 0;
virtual T VBargraph(const T& name, const T& lo, const T& hi) = 0;
virtual T NumEntry(const T& name, const T& init, const T& lo, const T& hi, const T& step) = 0;
virtual T Attach(const T& x, const T& y) = 0;
// Numerical Operations
virtual T Abs(const T& x) = 0;
virtual T Highest(const T& x) = 0;
virtual T Lowest(const T& x) = 0;
virtual T Add(const T& x, const T& y) = 0;
virtual T Sub(const T& x, const T& y) = 0;
virtual T Mul(const T& x, const T& y) = 0;
virtual T Div(const T& x, const T& y) = 0;
virtual T Inv(const T& x) = 0;
virtual T Neg(const T& x) = 0;
virtual T Mod(const T& x, const T& y) = 0;
virtual T Acos(const T& x) = 0;
virtual T Acosh(const T& x) = 0;
virtual T And(const T& x, const T& y) = 0;
virtual T Asin(const T& x) = 0;
virtual T Asinh(const T& x) = 0;
virtual T Atan(const T& x) = 0;
virtual T Atan2(const T& x, const T& y) = 0;
virtual T Atanh(const T& x) = 0;
virtual T Ceil(const T& x) = 0;
virtual T Cos(const T& x) = 0;
virtual T Cosh(const T& x) = 0;
virtual T Eq(const T& x, const T& y) = 0;
virtual T Exp(const T& x) = 0;
virtual T FloatCast(const T& x) = 0;
virtual T BitCast(const T& x) = 0;
virtual T Floor(const T& x) = 0;
virtual T Ge(const T& x, const T& y) = 0;
virtual T Gt(const T& x, const T& y) = 0;
virtual T IntCast(const T& x) = 0;
virtual T Le(const T& x, const T& y) = 0;
virtual T Log(const T& x) = 0;
virtual T Log10(const T& x) = 0;
virtual T Lsh(const T& x, const T& y) = 0;
virtual T Lt(const T& x, const T& y) = 0;
virtual T Max(const T& x, const T& y) = 0;
virtual T Min(const T& x, const T& y) = 0;
virtual T Ne(const T& x, const T& y) = 0;
virtual T Not(const T& x) = 0;
virtual T Or(const T& x, const T& y) = 0;
virtual T Pow(const T& x, const T& y) = 0;
virtual T Remainder(const T& x) = 0;
virtual T Rint(const T& x) = 0;
virtual T Round(const T& x) = 0;
virtual T Rsh(const T& x, const T& y) = 0;
virtual T Select2(const T& x, const T& y, const T& z) = 0;
virtual T Sin(const T& x) = 0;
virtual T Sinh(const T& x) = 0;
virtual T Sqrt(const T& x) = 0;
virtual T Tan(const T& x) = 0;
virtual T Tanh(const T& x) = 0;
virtual T Xor(const T& x, const T& y) = 0;
// Delays, Tables and SoundFiles
virtual T Mem(const T& x) = 0;
virtual T Delay(const T& x, const T& y) = 0;
virtual T Prefix(const T& x, const T& y) = 0;
virtual T RDTbl(const T& wtbl, const T& ri) = 0;
virtual T WRTbl(const T& n, const T& g, const T& wi, const T& ws) = 0;
virtual T Gen(const T& x) = 0;
virtual T SoundFile(const T& label) = 0;
virtual T SoundFileRate(const T& sf, const T& x) = 0;
virtual T SoundFileLength(const T& sf, const T& x) = 0;
virtual T SoundFileBuffer(const T& sf, const T& x, const T& y, const T& z) = 0;
virtual T Waveform(const std::vector<T>& w) = 0;
// Foreign functions
virtual T ForeignFunction(const std::vector<T>& ff) = 0;
virtual T ForeignVar(const T& type, const T& name, const T& file) = 0;
virtual T ForeignConst(const T& type, const T& name, const T& file) = 0;
//--------------------------------------------------------------------------------
// Calling the various operations according to the opcode symbol
// and the number of arguments
//--------------------------------------------------------------------------------
// Call unary opcode
[[nodiscard]] T operator()(Sym n, const T& a)
{
auto p = fUnFuncs.find(n);
if (p == fUnFuncs.end()) {
std::cerr << "Unknown unary opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, a);
}
// Call binary opcode
[[nodiscard]] T operator()(Sym n, const T& a, const T& b)
{
auto p = fBinFuncs.find(n);
if (p == fBinFuncs.end()) {
std::cerr << "Unknown binary opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, a, b);
}
// Call ternary opcode
[[nodiscard]] T operator()(Sym n, const T& a, const T& b, const T& c)
{
auto p = fTriFuncs.find(n);
if (p == fTriFuncs.end()) {
std::cerr << "Unknown quinary opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, a, b, c);
}
// Call quaternary opcode
[[nodiscard]] T operator()(Sym n, const T& a, const T& b, const T& c, const T& d)
{
auto p = fQuadFuncs.find(n);
if (p == fQuadFuncs.end()) {
std::cerr << "Unknown quaternary opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, a, b, c, d);
}
// Call quinary opcodes
[[nodiscard]] T operator()(Sym n, const T& a, const T& b, const T& c, const T& d, const T& e)
{
auto p = fQuinFuncs.find(n);
if (p == fQuinFuncs.end()) {
std::cerr << "Unknown quinary opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, a, b, c, d, e);
}
// Call variadic opcodes
[[nodiscard]] T operator()(Sym n, const std::vector<T>& v)
{
auto p = fVarFuncs.find(n);
if (p == fVarFuncs.end()) {
std::cerr << "Unknown variadic opcode " << n << std::endl;
exit(-1);
}
return std::invoke(p->second, this, v);
}
virtual ~FaustAlgebra() = default;
//--------------------------------------------------------------------------------
// The role of the constructor is to build the various dispatch tables.
//
//--------------------------------------------------------------------------------
FaustAlgebra()
{
// building the dispatch tables
// UNARY METHODS
// Unary user interface methods
fUnFuncs[symbol("SigButton")] = &FaustAlgebra::Button;
fUnFuncs[symbol("SigCheckbox")] = &FaustAlgebra::Checkbox;
// Unary Methods
fUnFuncs[symbol("SigHighest")] = &FaustAlgebra::Highest;
fUnFuncs[symbol("SigLowest")] = &FaustAlgebra::Lowest;
fUnFuncs[symbol("SigIntCast")] = &FaustAlgebra::IntCast;
fUnFuncs[symbol("SigBitCast")] = &FaustAlgebra::BitCast;
fUnFuncs[symbol("SigFloatCast")] = &FaustAlgebra::FloatCast;
fUnFuncs[symbol("inv")] = &FaustAlgebra::Inv;
fUnFuncs[symbol("abs")] = &FaustAlgebra::Abs;
fUnFuncs[symbol("neg")] = &FaustAlgebra::Neg;
fUnFuncs[symbol("acos")] = &FaustAlgebra::Acos;
fUnFuncs[symbol("acosh")] = &FaustAlgebra::Acosh;
fUnFuncs[symbol("asin")] = &FaustAlgebra::Asin;
fUnFuncs[symbol("asinh")] = &FaustAlgebra::Asinh;
fUnFuncs[symbol("atan")] = &FaustAlgebra::Atan;
fUnFuncs[symbol("atanh")] = &FaustAlgebra::Atanh;
fUnFuncs[symbol("ceil")] = &FaustAlgebra::Ceil;
fUnFuncs[symbol("cos")] = &FaustAlgebra::Cos;
fUnFuncs[symbol("cosh")] = &FaustAlgebra::Cosh;
fUnFuncs[symbol("exp")] = &FaustAlgebra::Exp;
fUnFuncs[symbol("floor")] = &FaustAlgebra::Floor;
fUnFuncs[symbol("log")] = &FaustAlgebra::Log;
fUnFuncs[symbol("log10")] = &FaustAlgebra::Log10;
fUnFuncs[symbol("not")] = &FaustAlgebra::Not;
fUnFuncs[symbol("remainder")] = &FaustAlgebra::Remainder;
fUnFuncs[symbol("rint")] = &FaustAlgebra::Rint;
fUnFuncs[symbol("round")] = &FaustAlgebra::Round;
fUnFuncs[symbol("sin")] = &FaustAlgebra::Sin;
fUnFuncs[symbol("sinh")] = &FaustAlgebra::Sinh;
fUnFuncs[symbol("sqrt")] = &FaustAlgebra::Sqrt;
fUnFuncs[symbol("tan")] = &FaustAlgebra::Tan;
fUnFuncs[symbol("tanh")] = &FaustAlgebra::Tanh;
// Binary Methods
fBinFuncs[symbol("add")] = &FaustAlgebra::Add;
fBinFuncs[symbol("sub")] = &FaustAlgebra::Sub;
fBinFuncs[symbol("mul")] = &FaustAlgebra::Mul;
fBinFuncs[symbol("div")] = &FaustAlgebra::Div;
fBinFuncs[symbol("mod")] = &FaustAlgebra::Mod;
fBinFuncs[symbol("and")] = &FaustAlgebra::And;
fBinFuncs[symbol("atan2")] = &FaustAlgebra::Atan2;
fBinFuncs[symbol("eq")] = &FaustAlgebra::Eq;
fBinFuncs[symbol("ge")] = &FaustAlgebra::Ge;
fBinFuncs[symbol("gt")] = &FaustAlgebra::Gt;
fBinFuncs[symbol("lsh")] = &FaustAlgebra::Lsh;
fBinFuncs[symbol("lt")] = &FaustAlgebra::Lt;
fBinFuncs[symbol("max")] = &FaustAlgebra::Max;
fBinFuncs[symbol("min")] = &FaustAlgebra::Min;
fBinFuncs[symbol("ne")] = &FaustAlgebra::Ne;
fBinFuncs[symbol("or")] = &FaustAlgebra::Or;
fBinFuncs[symbol("pow")] = &FaustAlgebra::Pow;
fBinFuncs[symbol("le")] = &FaustAlgebra::Le;
fBinFuncs[symbol("rsh")] = &FaustAlgebra::Rsh;
fBinFuncs[symbol("xor")] = &FaustAlgebra::Xor;
fBinFuncs[symbol("SigAttach")] = &FaustAlgebra::Attach;
// Ternary Methods
fTriFuncs[symbol("SigSelect2")] = &FaustAlgebra::Select2;
fTriFuncs[symbol("SigHBargraph")] = &FaustAlgebra::HBargraph;
fTriFuncs[symbol("SigVBargraph")] = &FaustAlgebra::VBargraph;
// Quintary Methods
fQuinFuncs[symbol("SigVSlider")] = &FaustAlgebra::VSlider;
fQuinFuncs[symbol("SigHSlider")] = &FaustAlgebra::HSlider;
fQuinFuncs[symbol("SigNumEntry")] = &FaustAlgebra::NumEntry;
// Input and output
fUnFuncs[symbol("SigInput")] = &FaustAlgebra::Input;
fBinFuncs[symbol("SigOutput")] = &FaustAlgebra::Output;
// Delays, Tables and SoundFiles
fUnFuncs[symbol("SigDelay1")] = &FaustAlgebra::Mem;
fBinFuncs[symbol("SigDelay")] = &FaustAlgebra::Delay;
fBinFuncs[symbol("SigPrefix")] = &FaustAlgebra::Prefix;
fBinFuncs[symbol("SigRDTbl")] = &FaustAlgebra::RDTbl;
fQuadFuncs[symbol("SigWRTbl")] = &FaustAlgebra::WRTbl;
fUnFuncs[symbol("SigGen")] = &FaustAlgebra::Gen;
fUnFuncs[symbol("SigSoundfile")] = &FaustAlgebra::SoundFile;
fBinFuncs[symbol("SigSoundfileRate")] = &FaustAlgebra::SoundFileRate;
fBinFuncs[symbol("SigSoundfileLength")] = &FaustAlgebra::SoundFileLength;
fQuadFuncs[symbol("SigSoundfileBuffer")] = &FaustAlgebra::SoundFileBuffer;
fVarFuncs[symbol("SigWaveform")] = &FaustAlgebra::Waveform;
// Foreign functions
fVarFuncs[symbol("SigFFun")] = &FaustAlgebra::ForeignFunction;
fTriFuncs[symbol("SigFVar")] = &FaustAlgebra::ForeignVar;
fTriFuncs[symbol("SigFConst")] = &FaustAlgebra::ForeignConst;
}
};
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