#include "instruction.h"

char* gravityOpcodeToCStr(GravityOpcode opcode) {
    switch (opcode) {
        case GravityOpcodeAlloc: return "alloc";
        case GravityOpcodeStore: return "store";
        case GravityOpcodeLoad: return "load";
        case GravityOpcodeRet: return "ret";
        case GravityOpcodeJumpIf: return "jumpif";
        case GravityOpcodeJump: return "jump";
        case GravityOpcodeIntConst: return "iconst";
        default: return "fixme";
    }
}

char* gravityInstructionToCStr(GravityInstruction inst) {
    StringBuffer buff;
    initStringBuff(&buff);

    if (inst.result != NULL) {
        sbAppend(&buff, "%s = ", gravityValueToCStr(inst.result));
    }

    sbAppend(&buff, "%s ", gravityOpcodeToCStr(inst.opcode));
    for (unsigned int i = 0; i < inst.numOperands; i++) {
        if (i < inst.numOperands - 1) {
            sbAppend(&buff, "%s, ", gravityValueToCStr(inst.operands[i]));
        } else {
            sbAppend(&buff, "%s", gravityValueToCStr(inst.operands[i]));
        }
    }

    return buff.data;
}