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Add sizeof() operator for numeric data types

blender-script
melex750 2019-04-11 04:21:22 -04:00
parent c0cdd84e85
commit bc572aa52f
3 changed files with 56 additions and 0 deletions
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40
src/CBot/CBotInstr/CBotExprLitNum.cpp
View File

@ -114,6 +114,46 @@ CBotInstr* CompileExprLitNum(CBotToken* &p, CBotCStack* pStack)
return pStack->Return(nullptr, pStk);
}
CBotInstr* CompileSizeOf(CBotToken* &p, CBotCStack* pStack)
{
CBotToken* pp = p;
if (!IsOfType(p, TokenTypVar)) return nullptr;
if (pp->GetString() == "sizeof" && IsOfType(p, ID_OPENPAR))
{
CBotCStack* pStk = pStack->TokenStack();
int value;
if (IsOfType(p, ID_BYTE)) value = sizeof(signed char);
else if (IsOfType(p, ID_SHORT)) value = sizeof(short);
else if (IsOfType(p, ID_CHAR)) value = sizeof(uint32_t);
else if (IsOfType(p, ID_INT)) value = sizeof(int);
else if (IsOfType(p, ID_LONG)) value = sizeof(long);
else if (IsOfType(p, ID_FLOAT)) value = sizeof(float);
else if (IsOfType(p, ID_DOUBLE)) value = sizeof(double);
else
{
p = pp;
return pStack->Return(nullptr, pStk);
}
if (IsOfType(p, ID_CLOSEPAR))
{
auto inst = new CBotExprLitNum<int>(value);
inst->SetToken(pp);
CBotVar* var = CBotVar::Create("", CBotTypInt);
pStk->SetVar(var);
return pStack->Return(inst, pStk);
}
pStk->SetError(CBotErrClosePar, p->GetStart());
return pStack->Return(nullptr, pStk);
}
p = pp;
return nullptr;
}
template <typename T>
bool CBotExprLitNum<T>::Execute(CBotStack* &pj)
{

2
src/CBot/CBotInstr/CBotExprLitNum.h
View File

@ -26,6 +26,8 @@ namespace CBot
CBotInstr* CompileExprLitNum(CBotToken* &p, CBotCStack* pStack);
CBotInstr* CompileSizeOf(CBotToken* &p, CBotCStack* pStack);
/**
* \brief A number literal - 5, 1, 2.5, 3.75, etc. or a predefined numerical constant (see CBotToken::DefineNum())
*

14
src/CBot/CBotInstr/CBotParExpr.cpp
View File

@ -68,6 +68,13 @@ CBotInstr* CBotParExpr::Compile(CBotToken* &p, CBotCStack* pStack)
if (inst != nullptr || !pStk->IsOk())
return pStack->Return(inst, pStk);
// is it sizeof operator ?
inst = CBot::CompileSizeOf(p, pStk);
if (inst != nullptr || !pStk->IsOk())
{
return pStack->Return(inst, pStk);
}
// is it a variable name?
if (p->GetType() == TokenTypVar)
{
@ -155,6 +162,13 @@ CBotInstr* CBotParExpr::CompileLitExpr(CBotToken* &p, CBotCStack* pStack)
return pStack->Return(inst, pStk);
}
// is it sizeof operator ?
inst = CBot::CompileSizeOf(p, pStk);
if (inst != nullptr || !pStk->IsOk())
{
return pStack->Return(inst, pStk);
}
// is this a chaine?
if (p->GetType() == TokenTypString)
{