Method DoAssignment

src/server/angelscript/angelscript/source/as_compiler.cpp:8287–8605

}

int asCCompiler::DoAssignment(asCExprContext *ctx, asCExprContext *lctx, asCExprContext *rctx, asCScriptNode *lexpr, asCScriptNode *rexpr, eTokenType op, asCScriptNode *opNode)
{
	// Don't allow any operators on expressions that take address of class method
	// If methodName is set but the type is not an object, then it is a global function
	if( lctx->methodName != "" || rctx->IsClassMethod() )
	{
		Error(TXT_INVALID_OP_ON_METHOD, opNode);
		return -1;
	}

	// Implicit handle types should always be treated as handles in assignments
	if (lctx->type.dataType.GetTypeInfo() && (lctx->type.dataType.GetTypeInfo()->flags & asOBJ_IMPLICIT_HANDLE) )
	{
		lctx->type.dataType.MakeHandle(true);
		lctx->type.isExplicitHandle = true;
	}

	// If the left hand expression is a property accessor, then that should be used
	// to do the assignment instead of the ordinary operator. The exception is when
	// the property accessor is for a handle property, and the operation is a value
	// assignment.
	if( (lctx->property_get || lctx->property_set) &&
		!(lctx->type.dataType.IsObjectHandle() && !lctx->type.isExplicitHandle) )
	{
		if( op != ttAssignment )
		{
			// Generate the code for the compound assignment, i.e. get the value, apply operator, then set the value
			return ProcessPropertyGetSetAccessor(ctx, lctx, rctx, op, opNode);
		}

		// It is not allowed to do a handle assignment on a property
		// accessor that doesn't take a handle in the set accessor.
		if( lctx->property_set && lctx->type.isExplicitHandle )
		{
			// set_opIndex has 2 arguments, where as normal setters have only 1
			asCArray<asCDataType>& parameterTypes =
				builder->GetFunctionDescription(lctx->property_set)->parameterTypes;
			if( !parameterTypes[parameterTypes.GetLength() - 1].IsObjectHandle() )
			{
				// Process the property to free the memory
				ProcessPropertySetAccessor(lctx, rctx, opNode);

				Error(TXT_HANDLE_ASSIGN_ON_NON_HANDLE_PROP, opNode);
				return -1;
			}
		}

		MergeExprBytecodeAndType(ctx, lctx);

		return ProcessPropertySetAccessor(ctx, rctx, opNode);
	}
	else if( lctx->property_get && lctx->type.dataType.IsObjectHandle() && !lctx->type.isExplicitHandle )
	{
		// Get the handle to the object that will be used for the value assignment
		if( ProcessPropertyGetAccessor(lctx, opNode) < 0 )
			return -1;
	}