Objects Initial

Objects/private/interpreter/operandsstack.cpp

@@ -0,0 +1,30 @@
+
+#include "interpreter/operandsstack.h"
+
+using namespace obj;
+
+OperandStack::OperandStack() {
+	mBuff = new Operand[MAX_STACK_SIZE];
+	mIdx = 0;
+}
+
+void OperandStack::push(Operand operand) {
+	ASSERT(MAX_STACK_SIZE - 1 > mIdx && "stack overflow");
+	mBuff[mIdx] = operand;
+	mIdx++;
+}
+
+void OperandStack::pop() {
+	ASSERT(mIdx != NULL && "stack overflow");
+	mIdx--;
+}
+
+Operand OperandStack::getOperand() {
+	auto ret = mBuff[mIdx - 1];
+	mIdx--;
+	return ret;
+}
+
+OperandStack::~OperandStack() {
+	delete[] mBuff;
+}