math.cpp

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#include "Runtime/Value.hpp"
#include "StdLib.hpp"
 
namespace Phasor
{
 
Value StdLib::registerMathFunctions(const std::vector<Value> &args, VM *vm)
{
    checkArgCount(args, 0, "include_stdmath");
    vm->registerNativeFunction("math_sqrt", StdLib::math_sqrt);
    vm->registerNativeFunction("math_pow", StdLib::math_pow);
    vm->registerNativeFunction("math_abs", StdLib::math_abs);
    vm->registerNativeFunction("math_floor", StdLib::math_floor);
    vm->registerNativeFunction("math_ceil", StdLib::math_ceil);
    vm->registerNativeFunction("math_round", StdLib::math_round);
    vm->registerNativeFunction("math_min", StdLib::math_min);
    vm->registerNativeFunction("math_max", StdLib::math_max);
    vm->registerNativeFunction("math_log", StdLib::math_log);
    vm->registerNativeFunction("math_exp", StdLib::math_exp);
    vm->registerNativeFunction("math_sin", StdLib::math_sin);
    vm->registerNativeFunction("math_cos", StdLib::math_cos);
    vm->registerNativeFunction("math_tan", StdLib::math_tan);
    return true;
}
 
Value StdLib::math_sqrt(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_sqrt");
    return Value(asm_sqrt(args[0].asFloat()));
}
 
Value StdLib::math_pow(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 2, "math_pow");
    double base = args[0].asFloat();
    double expv = args[1].asFloat();
    return Value(asm_pow(base, expv));
}
 
Value StdLib::math_abs(const std::vector<Value> &args, VM *)
{
    // @TODO: Implement abs natively
    checkArgCount(args, 1, "math_abs");
    if (args[0].isInt())
        return std::abs(args[0].asInt());
    return std::abs(args[0].asFloat());
}
 
Value StdLib::math_floor(const std::vector<Value> &args, VM *)
{
    // @TODO: Implement floor natively
    checkArgCount(args, 1, "math_floor");
    return static_cast<int64_t>(std::floor(args[0].asFloat()));
}
 
Value StdLib::math_ceil(const std::vector<Value> &args, VM *)
{
    // @TODO: Implement ceil natively
    checkArgCount(args, 1, "math_ceil");
    return static_cast<int64_t>(std::ceil(args[0].asFloat()));
}
 
Value StdLib::math_round(const std::vector<Value> &args, VM *)
{
    // @TODO: Implement round natively
    checkArgCount(args, 1, "math_round");
    return static_cast<int64_t>(std::round(args[0].asFloat()));
}
 
Value StdLib::math_min(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 2, "math_min");
    const Value &a = args[0];
    const Value &b = args[1];
    if (a.isInt() && b.isInt())
    {
        int64_t ai = a.asInt();
        int64_t bi = b.asInt();
        return Value(asm_iless_than(ai, bi) ? ai : bi);
    }
    if (a.isNumber() && b.isNumber())
    {
        double af = a.asFloat();
        double bf = b.asFloat();
        return Value(asm_flless_than(af, bf) ? af : bf);
    }
    return a < b ? a : b;
}
 
Value StdLib::math_max(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 2, "math_max");
    const Value &a = args[0];
    const Value &b = args[1];
    if (a.isInt() && b.isInt())
    {
        int64_t ai = a.asInt();
        int64_t bi = b.asInt();
        return Value(ai > bi ? ai : bi);
    }
    if (a.isNumber() && b.isNumber())
    {
        double af = a.asFloat();
        double bf = b.asFloat();
        return Value(af > bf ? af : bf);
    }
    return a > b ? a : b;
}
 
Value StdLib::math_log(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_log");
    return Value(asm_log(args[0].asFloat()));
}
 
Value StdLib::math_exp(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_exp");
    return Value(asm_exp(args[0].asFloat()));
}
 
Value StdLib::math_sin(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_sin");
    return Value(asm_sin(args[0].asFloat()));
}
 
Value StdLib::math_cos(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_cos");
    return Value(asm_cos(args[0].asFloat()));
}
 
Value StdLib::math_tan(const std::vector<Value> &args, VM *)
{
    checkArgCount(args, 1, "math_tan");
    return Value(asm_tan(args[0].asFloat()));
}
} // namespace Phasor