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VM.cpp
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#include "VM.h"
#include <iostream>
#include "Allocator.h"
#include "Utils.h"
#include "Object.h"
#include "Token.h"
#include "Logger.h"
namespace lwscript
{
std::vector<Value> VM::Run(FunctionObject *mainFunc) noexcept
{
PUSH_STACK(mainFunc);
auto closure = Allocator::GetInstance()->CreateObject<ClosureObject>(mainFunc);
POP_STACK();
PUSH_STACK(closure);
CallFrame mainCallFrame;
mainCallFrame.closure = closure;
mainCallFrame.ip = closure->function->chunk.opCodes.data();
mainCallFrame.slots = STACK_TOP() - 1;
PUSH_CALL_FRAME(mainCallFrame);
Execute();
std::vector<Value> returnValues;
#ifndef NDEBUG
if (STACK_TOP() != STACK() + 1)
Logger::Error(new Token(), TEXT("Stack occupancy exception."));
#endif
while (STACK_TOP() != STACK() + 1)
returnValues.emplace_back(POP_STACK());
POP_STACK();
return returnValues;
}
void VM::Execute()
{
// - * /
#define COMMON_BINARY(op) \
do \
{ \
Value right = POP_STACK(); \
Value left = POP_STACK(); \
if (IS_REF_VALUE(left)) \
left = *TO_REF_VALUE(left)->pointer; \
if (IS_REF_VALUE(right)) \
right = *TO_REF_VALUE(right)->pointer; \
if (IS_INT_VALUE(left) && IS_INT_VALUE(right)) \
PUSH_STACK(TO_INT_VALUE(left) op TO_INT_VALUE(right)); \
else if (IS_REAL_VALUE(left) && IS_REAL_VALUE(right)) \
PUSH_STACK(TO_REAL_VALUE(left) op TO_REAL_VALUE(right)); \
else if (IS_INT_VALUE(left) && IS_REAL_VALUE(right)) \
PUSH_STACK(TO_INT_VALUE(left) op TO_REAL_VALUE(right)); \
else if (IS_REAL_VALUE(left) && IS_INT_VALUE(right)) \
PUSH_STACK(TO_REAL_VALUE(left) op TO_INT_VALUE(right)); \
else \
Logger::Error(relatedToken, TEXT("Invalid binary op:{}{}{},only (&)int-(&)int,(&)real-(&)real,(&)int-(&)real or (&)real-(&)int type pair is available."), left.ToString(), TEXT(#op), right.ToString()); \
} while (0);
// & | << >>
#define INTEGER_BINARY(op) \
do \
{ \
Value right = POP_STACK(); \
Value left = POP_STACK(); \
if (IS_REF_VALUE(left)) \
left = *TO_REF_VALUE(left)->pointer; \
if (IS_REF_VALUE(right)) \
right = *TO_REF_VALUE(right)->pointer; \
if (IS_INT_VALUE(left) && IS_INT_VALUE(right)) \
PUSH_STACK(TO_INT_VALUE(left) op TO_INT_VALUE(right)); \
else \
Logger::Error(relatedToken, TEXT("Invalid binary op:{}{}{},only (&)int-(&)int type pair is available."), left.ToString(), TEXT(#op), right.ToString()); \
} while (0);
// > <
#define COMPARE_BINARY(op) \
do \
{ \
Value right = POP_STACK(); \
Value left = POP_STACK(); \
if (IS_REF_VALUE(left)) \
left = *TO_REF_VALUE(left)->pointer; \
if (IS_REF_VALUE(right)) \
right = *TO_REF_VALUE(right)->pointer; \
if (IS_INT_VALUE(left) && IS_INT_VALUE(right)) \
PUSH_STACK(TO_INT_VALUE(left) op TO_INT_VALUE(right) ? true : false); \
else if (IS_REAL_VALUE(left) && IS_REAL_VALUE(right)) \
PUSH_STACK(TO_REAL_VALUE(left) op TO_REAL_VALUE(right) ? true : false); \
else if (IS_INT_VALUE(left) && IS_REAL_VALUE(right)) \
PUSH_STACK(TO_INT_VALUE(left) op TO_REAL_VALUE(right) ? true : false); \
else if (IS_REAL_VALUE(left) && IS_INT_VALUE(right)) \
PUSH_STACK(TO_REAL_VALUE(left) op TO_INT_VALUE(right) ? true : false); \
else \
PUSH_STACK(false); \
} while (0);
// && ||
#define LOGIC_BINARY(op) \
do \
{ \
Value right = POP_STACK(); \
Value left = POP_STACK(); \
if (IS_REF_VALUE(left)) \
left = *TO_REF_VALUE(left)->pointer; \
if (IS_REF_VALUE(right)) \
right = *TO_REF_VALUE(right)->pointer; \
if (IS_BOOL_VALUE(left) && IS_BOOL_VALUE(right)) \
PUSH_STACK(TO_BOOL_VALUE(left) op TO_BOOL_VALUE(right) ? Value(true) : Value(false)); \
else \
Logger::Error(relatedToken, TEXT("Invalid binary op:{}{}{},only (&)bool-(&)bool type pair is available."), left.ToString(), TEXT(#op), right.ToString()); \
} while (0);
#define READ_INS() (*frame->ip++)
#define CHECK_IDX_RANGE(v, idx) \
if (idx < 0 || idx >= (uint64_t)(v).size()) \
Logger::Error(relatedToken, TEXT("Idx out of range."));
#define CHECK_IDX_VALID(idxValue) \
if (!IS_INT_VALUE(idxValue)) \
Logger::Error(relatedToken, TEXT("Invalid idx type for array or string,only integer is available."));
while (1)
{
if (IS_CALL_FRAME_STACK_EMPTY())
return;
CallFrame *frame = PEEK_CALL_FRAME(0);
auto instruction = READ_INS();
auto relatedToken = frame->closure->function->chunk.opCodeRelatedTokens[READ_INS()];
switch (instruction)
{
case OP_RETURN:
{
auto retCount = READ_INS();
Value *retValues = STACK_TOP() - retCount;
CLOSED_UPVALUES(frame->slots);
if (IS_CALL_FRAME_STACK_EMPTY())
return;
SET_STACK_TOP(frame->slots);
if (retCount == 0)
{
#ifdef LWSCRIPT_FUNCTION_CACHE_OPT
{
auto callFrameTop = PEEK_CALL_FRAME(0);
callFrameTop->closure->function->SetCache(callFrameTop->argumentsHash, {Value()});
}
#endif
PUSH_STACK(Value());
}
else
{
#ifdef LWSCRIPT_FUNCTION_CACHE_OPT
{
auto callFrameTop = PEEK_CALL_FRAME(0);
std::vector<Value> rets(retValues, retValues + retCount);
callFrameTop->closure->function->SetCache(callFrameTop->argumentsHash, rets);
}
#endif
uint8_t i = 0;
while (i < retCount)
{
auto value = *(retValues + i);
PUSH_STACK(value);
i++;
}
}
frame = POP_CALL_FRAME();
break;
}
case OP_CONSTANT:
{
auto pos = READ_INS();
auto v = frame->closure->function->chunk.constants[pos];
PUSH_STACK(v);
break;
}
case OP_NULL:
{
PUSH_STACK(Value());
break;
}
case OP_SET_GLOBAL:
{
auto pos = READ_INS();
auto v = PEEK_STACK(0);
auto globalValue = GET_GLOBAL_VARIABLE(pos);
if (IS_REF_VALUE(*globalValue))
*TO_REF_VALUE(*globalValue)->pointer = v;
else
*globalValue = v;
break;
}
case OP_GET_GLOBAL:
{
auto pos = READ_INS();
PUSH_STACK(*GET_GLOBAL_VARIABLE(pos));
break;
}
case OP_SET_LOCAL:
{
auto pos = READ_INS();
auto value = PEEK_STACK(0);
auto slot = frame->slots + pos;
if (IS_REF_VALUE((*slot)))
*TO_REF_VALUE((*slot))->pointer = value;
else
*slot = value; // now assume base ptr on the stack bottom
break;
}
case OP_GET_LOCAL:
{
auto pos = READ_INS();
PUSH_STACK(frame->slots[pos]); // now assume base ptr on the stack bottom
break;
}
case OP_SET_UPVALUE:
{
auto pos = READ_INS();
auto v = PEEK_STACK(0);
*frame->closure->upvalues[pos]->location = PEEK_STACK(0);
break;
}
case OP_GET_UPVALUE:
{
auto pos = READ_INS();
PUSH_STACK(*frame->closure->upvalues[pos]->location);
break;
}
case OP_CLOSE_UPVALUE:
{
CLOSED_UPVALUES(STACK_TOP() - 1);
POP_STACK();
break;
}
case OP_ADD:
{
Value left = PEEK_STACK(0);
Value right = PEEK_STACK(1);
Value result;
if (IS_REF_VALUE(left))
left = *TO_REF_VALUE(left)->pointer;
if (IS_REF_VALUE(right))
right = *TO_REF_VALUE(right)->pointer;
if (IS_INT_VALUE(left) && IS_INT_VALUE(right))
result = TO_INT_VALUE(left) + TO_INT_VALUE(right);
else if (IS_REAL_VALUE(left) && IS_REAL_VALUE(right))
result = TO_REAL_VALUE(left) + TO_REAL_VALUE(right);
else if (IS_INT_VALUE(left) && IS_REAL_VALUE(right))
result = TO_INT_VALUE(left) + TO_REAL_VALUE(right);
else if (IS_REAL_VALUE(left) && IS_INT_VALUE(right))
result = TO_REAL_VALUE(left) + TO_INT_VALUE(right);
else if (IS_STR_VALUE(left) && IS_STR_VALUE(right))
result = Allocator::GetInstance()->CreateObject<StrObject>(TO_STR_VALUE(left)->value + TO_STR_VALUE(right)->value);
else
Logger::Error(relatedToken, TEXT("Invalid binary op:{}+{},only (&)int-(&)int,(&)real-(&)real,(&)int-(&)real or (&)real-(&)int type pair is available."), left.ToString(), right.ToString());
MOVE_STACK_TOP(-2);
PUSH_STACK(result);
break;
}
case OP_SUB:
{
COMMON_BINARY(-);
break;
}
case OP_MUL:
{
COMMON_BINARY(*);
break;
}
case OP_DIV:
{
COMMON_BINARY(/);
break;
}
case OP_MOD:
{
INTEGER_BINARY(%);
break;
}
case OP_BIT_AND:
{
INTEGER_BINARY(&);
break;
}
case OP_BIT_OR:
{
INTEGER_BINARY(|);
break;
}
case OP_BIT_LEFT_SHIFT:
{
INTEGER_BINARY(<<);
break;
}
case OP_BIT_RIGHT_SHIFT:
{
INTEGER_BINARY(>>);
break;
}
case OP_LESS:
{
COMPARE_BINARY(<);
break;
}
case OP_GREATER:
{
COMPARE_BINARY(>);
break;
}
case OP_NOT:
{
auto value = POP_STACK();
if (IS_REF_VALUE(value))
value = *TO_REF_VALUE(value)->pointer;
if (!IS_BOOL_VALUE(value))
Logger::Error(relatedToken, TEXT("Invalid op:!{}, only bool type is available."), value.ToString());
PUSH_STACK(!TO_BOOL_VALUE(value));
break;
}
case OP_EQUAL:
{
Value left = POP_STACK();
Value right = POP_STACK();
if (IS_REF_VALUE(left))
left = *TO_REF_VALUE(left)->pointer;
if (IS_REF_VALUE(right))
right = *TO_REF_VALUE(right)->pointer;
PUSH_STACK(left == right);
break;
}
case OP_MINUS:
{
auto value = POP_STACK();
if (IS_REF_VALUE(value))
value = *TO_REF_VALUE(value)->pointer;
if (IS_INT_VALUE(value))
PUSH_STACK(-TO_INT_VALUE(value));
else if (IS_REAL_VALUE(value))
PUSH_STACK(-TO_REAL_VALUE(value));
else
Logger::Error(relatedToken, TEXT("Invalid op:-{}, only -(int||real expr) is available."), value.ToString());
break;
}
case OP_FACTORIAL:
{
auto value = POP_STACK();
if (IS_REF_VALUE(value))
value = *TO_REF_VALUE(value)->pointer;
if (IS_INT_VALUE(value))
PUSH_STACK(Factorial(TO_INT_VALUE(value)));
else
Logger::Error(relatedToken, TEXT("Invalid op:{}!, only (int expr)! is available."), value.ToString());
break;
}
case OP_ARRAY:
{
auto count = READ_INS();
std::vector<Value> elements(count);
size_t i = 0;
for (auto e = STACK_TOP() - count; e < STACK_TOP(); ++e, ++i)
elements[i] = *e;
auto arrayObject = Allocator::GetInstance()->CreateObject<ArrayObject>(elements);
MOVE_STACK_TOP(-count);
PUSH_STACK(arrayObject);
break;
}
case OP_DICT:
{
auto count = READ_INS();
ValueUnorderedMap elements;
auto dict = Allocator::GetInstance()->CreateObject<DictObject>(elements);
for (auto e = STACK_TOP() - count * 2; e < STACK_TOP(); e += 2)
{
auto key = *e;
auto value = *(e + 1);
dict->elements[key] = value;
}
MOVE_STACK_TOP(-count * 2);
PUSH_STACK(dict);
break;
}
case OP_GET_INDEX:
{
auto idxValue = POP_STACK();
auto dsValue = POP_STACK();
if (IS_ARRAY_VALUE(dsValue))
{
auto array = TO_ARRAY_VALUE(dsValue);
CHECK_IDX_VALID(idxValue);
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), array->elements.size());
CHECK_IDX_RANGE(array->elements, intIdx);
PUSH_STACK(array->elements[intIdx]);
}
else if (IS_STR_VALUE(dsValue))
{
auto strObj = TO_STR_VALUE(dsValue);
CHECK_IDX_VALID(idxValue)
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), strObj->value.size());
CHECK_IDX_RANGE(strObj->value, intIdx);
PUSH_STACK(Allocator::GetInstance()->CreateObject<StrObject>(strObj->value.substr(intIdx, 1)));
}
else if (IS_DICT_VALUE(dsValue))
{
auto dict = TO_DICT_VALUE(dsValue);
auto iter = dict->elements.find(idxValue);
if (iter != dict->elements.end())
PUSH_STACK(iter->second);
else
Logger::Error(relatedToken, TEXT("No key in dict"));
}
break;
}
case OP_SET_INDEX:
{
auto idxValue = POP_STACK();
auto dsValue = POP_STACK();
auto newValue = PEEK_STACK(0);
if (IS_ARRAY_VALUE(dsValue))
{
auto array = TO_ARRAY_VALUE(dsValue);
CHECK_IDX_VALID(idxValue);
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), array->elements.size());
CHECK_IDX_RANGE(array->elements, intIdx);
array->elements[intIdx] = newValue;
}
else if (IS_STR_VALUE(dsValue))
{
auto strObj = TO_STR_VALUE(dsValue);
CHECK_IDX_VALID(idxValue)
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), strObj->value.size());
CHECK_IDX_RANGE(strObj->value, intIdx)
if (!IS_STR_VALUE(newValue))
Logger::Error(relatedToken, TEXT("Cannot insert a non string clip:{} to string:{}"), newValue.ToString(), strObj->value);
strObj->value.append(TO_STR_VALUE(newValue)->value, intIdx, TO_STR_VALUE(newValue)->value.size());
}
else if (IS_DICT_VALUE(dsValue))
{
auto dict = TO_DICT_VALUE(dsValue);
dict->elements[idxValue] = newValue;
}
break;
}
case OP_POP:
{
POP_STACK();
break;
}
case OP_JUMP_IF_FALSE:
{
uint16_t address = (*(frame->ip++) << 8) | (*(frame->ip++));
if (IsFalsey(PEEK_STACK(0)))
frame->ip += address;
break;
}
case OP_JUMP:
{
uint16_t address = (*(frame->ip++) << 8) | (*(frame->ip++));
frame->ip += address;
break;
}
case OP_LOOP:
{
uint16_t address = (*(frame->ip++) << 8) | (*(frame->ip++));
frame->ip -= address;
break;
}
case OP_REF_GLOBAL:
{
auto index = READ_INS();
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(GET_GLOBAL_VARIABLE(index)));
break;
}
case OP_REF_LOCAL:
{
auto index = READ_INS();
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(frame->slots + index));
break;
}
case OP_REF_UPVALUE:
{
auto index = READ_INS();
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(frame->closure->upvalues[index]->location));
break;
}
case OP_REF_INDEX_GLOBAL:
{
auto index = READ_INS();
auto idxValue = POP_STACK();
auto globalValue = GET_GLOBAL_VARIABLE(index);
if (IS_DICT_VALUE(*globalValue))
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&TO_DICT_VALUE(*globalValue)->elements[idxValue]));
else if (IS_ARRAY_VALUE(*globalValue))
{
auto array = TO_ARRAY_VALUE(*globalValue);
CHECK_IDX_VALID(idxValue)
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), array->elements.size());
CHECK_IDX_RANGE(array->elements, intIdx);
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&(array->elements[intIdx])));
}
else
Logger::Error(relatedToken, TEXT("Invalid indexed reference type:{} not a dict or array value."), globalValue->ToString());
break;
}
case OP_REF_INDEX_LOCAL:
{
auto index = READ_INS();
auto idxValue = POP_STACK();
Value *v = frame->slots + index;
if (IS_DICT_VALUE((*v)))
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&TO_DICT_VALUE((*v))->elements[idxValue]));
else if (IS_ARRAY_VALUE((*v)))
{
auto array = TO_ARRAY_VALUE((*v));
CHECK_IDX_VALID(idxValue)
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), array->elements.size());
CHECK_IDX_RANGE(array->elements, intIdx);
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&array->elements[intIdx]));
}
else
Logger::Error(relatedToken, TEXT("Invalid indexed reference type:{} not a dict or array value."), v->ToString());
break;
}
case OP_REF_INDEX_UPVALUE:
{
auto index = READ_INS();
auto idxValue = POP_STACK();
Value *v = frame->closure->upvalues[index]->location;
if (IS_DICT_VALUE((*v)))
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&TO_DICT_VALUE((*v))->elements[idxValue]));
else if (IS_ARRAY_VALUE((*v)))
{
auto array = TO_ARRAY_VALUE((*v));
CHECK_IDX_VALID(idxValue)
auto intIdx = NormalizeIdx(TO_INT_VALUE(idxValue), array->elements.size());
CHECK_IDX_RANGE(array->elements, intIdx)
PUSH_STACK(Allocator::GetInstance()->CreateObject<RefObject>(&array->elements[intIdx]));
}
else
Logger::Error(relatedToken, TEXT("Invalid indexed reference type: {} not a dict or array value."), v->ToString());
break;
}
case OP_CALL:
{
auto argCount = READ_INS();
auto callee = PEEK_STACK(argCount);
if (IS_CLOSURE_VALUE(callee) || IS_CLASS_CLOSURE_BIND_VALUE(callee)) // normal function or class member function
{
if (IS_CLASS_CLOSURE_BIND_VALUE(callee))
{
auto binding = TO_CLASS_CLOSURE_BIND_VALUE(callee);
SET_VALUE_FROM_STACK_TOP_OFFSET(-(argCount + 1), binding->receiver);
callee = binding->closure;
}
if (TO_CLOSURE_VALUE(callee)->function->varArg > VarArg::NONE)
{
auto arity = TO_CLOSURE_VALUE(callee)->function->arity;
if (argCount < arity)
{
if (argCount == arity - 1)
{
if (TO_CLOSURE_VALUE(callee)->function->varArg == VarArg::WITH_NAME)
{
PUSH_STACK(new ArrayObject());
argCount = arity;
}
else
argCount = arity - 1;
}
else
Logger::Error(relatedToken, TEXT("No matching argument count."));
}
else if (argCount >= arity)
{
auto diff = argCount - arity + 1;
if (TO_CLOSURE_VALUE(callee)->function->varArg == VarArg::WITH_NAME)
{
std::vector<Value> varArgs;
for (int32_t i = 0; i < diff; ++i)
varArgs.insert(varArgs.begin(), POP_STACK());
PUSH_STACK(new ArrayObject(varArgs));
argCount = arity;
}
else
{
for (int32_t i = 0; i < diff; ++i)
POP_STACK();
argCount = arity - 1;
}
}
}
else if (argCount != TO_CLOSURE_VALUE(callee)->function->arity)
Logger::Error(relatedToken, TEXT("No matching argument count."));
auto argsHash = HashValueList(STACK_TOP() - argCount, STACK_TOP());
std::vector<Value> rets;
#ifdef LWSCRIPT_FUNCTION_CACHE_OPT
if (TO_CLOSURE_VALUE(callee)->function->GetCache(argsHash, rets))
{
MOVE_STACK_TOP(-(argCount + 1));
for (int32_t i = 0; i < rets.size(); ++i)
PUSH_STACK(rets[i]);
}
else
#endif
{
// init a new frame
CallFrame newframe;
newframe.closure = TO_CLOSURE_VALUE(callee);
newframe.ip = newframe.closure->function->chunk.opCodes.data();
newframe.slots = STACK_TOP() - argCount - 1;
#ifdef LWSCRIPT_FUNCTION_CACHE_OPT
newframe.argumentsHash = argsHash;
#endif
PUSH_CALL_FRAME(newframe);
}
}
else if (IS_CLASS_VALUE(callee)) // class constructor
{
auto klass = TO_CLASS_VALUE(callee);
// no user-defined constructor and calling none argument construction
// like: class A{} let a=new A();
// skip calling constructor(because class object has been instantiated)
if (argCount == 0 && klass->constructors.size() == 0)
break;
else
{
auto iter = klass->constructors.find(argCount);
if (iter == klass->constructors.end())
Logger::Error(relatedToken, TEXT("Not matching argument count of class: {}'s constructors."), klass->name);
auto ctor = iter->second;
// init a new frame
CallFrame newframe;
newframe.closure = ctor;
newframe.ip = newframe.closure->function->chunk.opCodes.data();
newframe.slots = STACK_TOP() - argCount - 1;
PUSH_CALL_FRAME(newframe);
}
}
else if (IS_NATIVE_FUNCTION_VALUE(callee)) // native function
{
Value result;
auto hasRetV = TO_NATIVE_FUNCTION_VALUE(callee)->fn(STACK_TOP() - argCount, argCount, relatedToken, result);
MOVE_STACK_TOP(-(argCount + 1));
if (hasRetV)
PUSH_STACK(result);
else
PUSH_STACK(Value());
}
else
Logger::Error(relatedToken, TEXT("Invalid callee,Only function is available: {}"), callee.ToString());
break;
}
case OP_CLASS:
{
auto name = PEEK_STACK(0);
auto ctorCount = READ_INS();
auto varCount = READ_INS();
auto constCount = READ_INS();
auto parentClassCount = READ_INS();
auto classObj = Allocator::GetInstance()->CreateObject<ClassObject>();
classObj->name = TO_STR_VALUE(name)->value;
POP_STACK(); // pop name strobject
for (int32_t i = 0; i < ctorCount; ++i)
{
auto v = TO_CLOSURE_VALUE(POP_STACK());
classObj->constructors[v->function->arity] = v;
}
for (int32_t i = 0; i < parentClassCount; ++i)
{
name = POP_STACK();
auto parentClass = POP_STACK();
classObj->parents[TO_STR_VALUE(name)->value] = TO_CLASS_VALUE(parentClass);
}
for (int32_t i = 0; i < varCount; ++i)
{
name = POP_STACK();
auto v = POP_STACK();
v.privilege = Privilege::MUTABLE;
classObj->members[TO_STR_VALUE(name)->value] = v;
}
for (int32_t i = 0; i < constCount; ++i)
{
name = POP_STACK();
auto v = POP_STACK();
v.privilege = Privilege::IMMUTABLE;
classObj->members[TO_STR_VALUE(name)->value] = v;
}
PUSH_STACK(classObj);
break;
}
case OP_STRUCT:
{
auto eCount = READ_INS();
auto structObj = Allocator::GetInstance()->CreateObject<StructObject>();
for (int64_t i = 0; i < (int64_t)eCount; ++i)
{
auto key = TO_STR_VALUE(POP_STACK())->value;
auto value = POP_STACK();
structObj->elements[key] = value;
}
PUSH_STACK(structObj);
break;
}
case OP_GET_PROPERTY:
{
auto peekValue = PEEK_STACK(1);
if (IS_REF_VALUE(peekValue))
peekValue = *(TO_REF_VALUE(peekValue)->pointer);
auto propName = TO_STR_VALUE(POP_STACK())->value;
if (IS_CLASS_VALUE(peekValue))
{
ClassObject *klass = TO_CLASS_VALUE(peekValue);
Value member;
if (klass->GetMember(propName, member))
{
POP_STACK(); // pop class object
if (IS_CLOSURE_VALUE(member))
member = Allocator::GetInstance()->CreateObject<ClassClosureBindObject>(klass, TO_CLOSURE_VALUE(member));
PUSH_STACK(member);
break;
}
else
Logger::Error(relatedToken, TEXT("No member: {} in class object:{}"), propName, klass->name);
}
else if (IS_ENUM_VALUE(peekValue))
{
EnumObject *enumObj = TO_ENUM_VALUE(peekValue);
Value member;
if (enumObj->GetMember(propName, member))
{
POP_STACK(); // pop enum object
PUSH_STACK(member);
break;
}
else
Logger::Error(relatedToken, TEXT("No member: {} in enum object: {}"), propName, enumObj->name);
}
else if (IS_STRUCT_VALUE(peekValue))
{
auto structObj = TO_STRUCT_VALUE(peekValue);
auto iter = structObj->elements.find(propName);
if (iter == structObj->elements.end())
Logger::Error(relatedToken, TEXT("No property: {} in struct object:{}."), propName, structObj->ToString());
POP_STACK(); // pop struct object
PUSH_STACK(iter->second);
break;
}
else if (IS_MODULE_VALUE(peekValue))
{
auto moduleObj = TO_MODULE_VALUE(peekValue);
Value member;
if (moduleObj->GetMember(propName, member))
{
POP_STACK(); // pop module object
PUSH_STACK(member);
break;
}
else
Logger::Error(relatedToken, TEXT("No member: {} in module: {}"), propName, moduleObj->name);
}
else
Logger::Error(relatedToken, TEXT("Invalid call:not a valid class,enum or struct object instance: {}"), peekValue.ToString());
break;
}
case OP_SET_PROPERTY:
{
auto peekValue = PEEK_STACK(1);
if (IS_REF_VALUE(peekValue))
peekValue = *(TO_REF_VALUE(peekValue)->pointer);
auto propName = TO_STR_VALUE(POP_STACK())->value;
if (IS_CLASS_VALUE(peekValue))
{
auto klass = TO_CLASS_VALUE(peekValue);
POP_STACK(); // pop class value
Value member;
if (klass->GetMember(propName, member))
{
if (member.privilege == Privilege::IMMUTABLE)
Logger::Error(relatedToken, TEXT("Constant cannot be assigned twice: {}'s member: {} is a constant value"), klass->name, propName);
else
klass->members[propName] = PEEK_STACK(0);
}
else
Logger::Error(relatedToken, TEXT("No member named: {} in class: {}"), propName, klass->name);
}
else if (IS_STRUCT_VALUE(peekValue))
{
auto structObj = TO_STRUCT_VALUE(peekValue);
auto iter = structObj->elements.find(propName);
if (iter == structObj->elements.end())
Logger::Error(relatedToken, TEXT("No property: {} in struct object:{}"), propName, structObj->ToString());
POP_STACK(); // pop struct object
structObj->elements[iter->first] = PEEK_STACK(0);
break;
}
else if (IS_ENUM_VALUE(peekValue))
Logger::Error(relatedToken, TEXT("Invalid call:cannot assign value to a enum object member."));
else
Logger::Error(relatedToken, TEXT("Invalid call:not a valid class or struct object instance."));
break;
}
case OP_GET_BASE:
{
if (!IS_CLASS_VALUE(PEEK_STACK(1)))
Logger::Error(relatedToken, TEXT("Invalid class call:not a valid class instance."));
auto propName = TO_STR_VALUE(POP_STACK())->value;
auto klass = TO_CLASS_VALUE(POP_STACK());
Value member;
bool hasValue = klass->GetParentMember(propName, member);
if (!hasValue)
Logger::Error(relatedToken, TEXT("No member: {} in class: {}'s parent class(es)."), propName, klass->name);
PUSH_STACK(member);
break;
}
case OP_CLOSURE:
{
auto pos = READ_INS();
auto func = TO_FUNCTION_VALUE(frame->closure->function->chunk.constants[pos]);
PUSH_STACK(func); // push function object for avoiding gc
auto closure = Allocator::GetInstance()->CreateObject<ClosureObject>(func);
POP_STACK(); // pop function object
PUSH_STACK(closure);
for (int32_t i = 0; i < closure->upvalues.size(); ++i)
{
auto index = READ_INS();
auto depth = READ_INS();
if (depth == CALL_FRAME_COUNT() - 1)
{
auto captured = CAPTURE_UPVALUE(frame->slots + index);
closure->upvalues[i] = captured;
}
else
closure->upvalues[i] = frame->closure->upvalues[index];
}
break;
}
case OP_APPREGATE_RESOLVE:
{
auto count = READ_INS();
auto value = POP_STACK();
if (IS_ARRAY_VALUE(value))
{
auto arrayObj = TO_ARRAY_VALUE(value);
if (count >= arrayObj->elements.size())
{
auto diff = count - arrayObj->elements.size();
while (diff > 0)
{
PUSH_STACK(Value());
diff--;
}
for (int32_t i = static_cast<int32_t>(arrayObj->elements.size() - 1); i >= 0; --i)
PUSH_STACK(arrayObj->elements[i]);
}
else
{
for (int32_t i = count - 1; i >= 0; --i)
PUSH_STACK(arrayObj->elements[i]);
}
}
else
{
auto diff = count - 1;
while (diff > 0)
{
PUSH_STACK(Value());
diff--;
}
PUSH_STACK(value);
}
break;
}
case OP_APPREGATE_RESOLVE_VAR_ARG:
{
auto count = READ_INS();
auto value = PEEK_STACK(0);
if (IS_ARRAY_VALUE(value))
{
auto arrayObj = TO_ARRAY_VALUE(value);
if (count >= arrayObj->elements.size())
{
ArrayObject *varArgArray = Allocator::GetInstance()->CreateObject<ArrayObject>();
POP_STACK(); // pop value object
auto diff = count - arrayObj->elements.size();
for (int32_t i = static_cast<int32_t>(diff); i > 0; --i)
{
if (i == diff)
PUSH_STACK(varArgArray);
else
PUSH_STACK(Value());
}
for (int32_t i = static_cast<int32_t>(arrayObj->elements.size() - 1); i >= 0; --i)
PUSH_STACK(arrayObj->elements[i]);
}
else
{
ArrayObject *varArgArray = Allocator::GetInstance()->CreateObject<ArrayObject>();
POP_STACK(); // pop value object
for (int32_t i = count - 1; i < arrayObj->elements.size(); ++i)
varArgArray->elements.emplace_back(arrayObj->elements[i]);
PUSH_STACK(varArgArray);
for (int32_t i = count - 2; i >= 0; --i)
PUSH_STACK(arrayObj->elements[i]);
}
}
else
{
auto arrayObj = Allocator::GetInstance()->CreateObject<ArrayObject>();
POP_STACK(); // pop value object
auto diff = count - 2;
while (diff > 0)
{
PUSH_STACK(Value());
diff--;
}
PUSH_STACK(arrayObj);
PUSH_STACK(value);
}
break;
}
case OP_MODULE:
{
auto name = PEEK_STACK(0);
auto nameStr = TO_STR_VALUE(name)->value;
auto varCount = READ_INS();
auto constCount = READ_INS();