Method CompileRefCast

sdk/angelscript/source/as_compiler.cpp:6825–7153

}

bool asCCompiler::CompileRefCast(asCExprContext *ctx, const asCDataType &to, bool isExplicit, asCScriptNode *node, bool generateCode)
{
	bool conversionDone = false;

	asCArray<int> ops;

	// A ref cast must not remove the constness
	bool isConst = ctx->type.dataType.IsObjectConst();

	// Find a suitable opCast or opImplCast method
	asCObjectType *ot = CastToObjectType(ctx->type.dataType.GetTypeInfo());
	for( asUINT n = 0; ot && n < ot->methods.GetLength(); n++ )
	{
		asCScriptFunction *func = engine->scriptFunctions[ot->methods[n]];
		if( (isExplicit && func->name == "opCast") ||
			func->name == "opImplCast" )
		{
			// Skip functions with arguments as they are not valid cast operators
			if (func->parameterTypes.GetLength() > 0)
				continue;

			// Is the operator for the output type?
			if( func->returnType.GetTypeInfo() != to.GetTypeInfo() )
				continue;

			// Can't call a non-const function on a const object
			if( isConst && !func->IsReadOnly() )
				continue;

			ops.PushLast(func->id);
		}
	}

	// Filter the list by constness to remove const methods if there are matching non-const methods
	FilterConst(ops, !isConst);

	// If there is multiple matches, then pick the most appropriate one
	if (ops.GetLength() > 1)
	{
		// This should only happen if an explicit cast is compiled
		// and the type has both the opCast and opImplCast
		asASSERT(isExplicit);
		asASSERT(ops.GetLength() == 2);

		for (asUINT n = 0; n < ops.GetLength(); n++)
		{
			asCScriptFunction *func = engine->scriptFunctions[ops[n]];
			if (func->name == "opImplCast")
			{
				ops.RemoveIndex(n);
				n--;
			}
		}
	}

	// Should only have one behaviour for each output type
	if( ops.GetLength() == 1 )
	{