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Support for non-static ++ and -- operator overloads

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This commit is contained in:
Brian Fiete 2020-08-31 16:11:20 -07:00
parent 5924d4819b
commit 66d5f67528
3 changed files with 58 additions and 19 deletions
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37
IDEHelper/Compiler/BfModule.cpp
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@ -17002,20 +17002,35 @@ void BfModule::ProcessMethod(BfMethodInstance* methodInstance, bool isInlineDup)
}
else if (operatorDef->mOperatorDeclaration->mUnaryOp != BfUnaryOp_None)
{
if (methodDef->mParams.size() != 1)
if (methodDef->mIsStatic)
{
Fail("Unary operators must declare one parameter", paramErrorRefNode);
}
else if ((mCurMethodInstance->GetParamType(0) != mCurTypeInstance) && (!mCurMethodInstance->GetParamType(0)->IsSelf()))
{
Fail("The parameter of a unary operator must be the containing type", paramErrorRefNode);
}
if (methodDef->mParams.size() != 1)
{
Fail("Unary operators must declare one parameter", paramErrorRefNode);
}
else if ((mCurMethodInstance->GetParamType(0) != mCurTypeInstance) && (!mCurMethodInstance->GetParamType(0)->IsSelf()))
{
Fail("The parameter of a unary operator must be the containing type", paramErrorRefNode);
}
if (((operatorDef->mOperatorDeclaration->mUnaryOp == BfUnaryOp_Increment) ||
(operatorDef->mOperatorDeclaration->mUnaryOp == BfUnaryOp_Decrement)) &&
(!TypeIsSubTypeOf(mCurMethodInstance->mReturnType->ToTypeInstance(), mCurTypeInstance)))
if (((operatorDef->mOperatorDeclaration->mUnaryOp == BfUnaryOp_Increment) ||
(operatorDef->mOperatorDeclaration->mUnaryOp == BfUnaryOp_Decrement)) &&
(!TypeIsSubTypeOf(mCurMethodInstance->mReturnType->ToTypeInstance(), mCurTypeInstance)))
{
Fail("The return type for the '++' or '--' operator must match the parameter type or be derived from the parameter type", operatorDef->mOperatorDeclaration->mReturnType);
}
}
else
{
Fail("The return type for the '++' or '--' operator must match the parameter type or be derived from the parameter type", operatorDef->mOperatorDeclaration->mReturnType);
if (methodDef->mParams.size() != 0)
{
Fail("Non-static unary operators not declare any parameters", paramErrorRefNode);
}
if (!mCurMethodInstance->mReturnType->IsVoid())
{
Fail("The return type for non-static operator must be 'void'", operatorDef->mOperatorDeclaration->mReturnType);
}
}
}
else if (operatorDef->mOperatorDeclaration->mAssignOp != BfAssignmentOp_None)