* Copyright (c) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "script_function.h"
#include "script_context.h"
#include "script_interpreter.h"
#include "script_manager.h"
#include "script_param.h"
#include "script_utils.h"
using namespace std;
namespace Uscript {
ScriptFunction::~ScriptFunction()
{
delete params_;
delete statements_;
}
UScriptValuePtr ScriptFunction::Execute(ScriptInterpreter &inter,
UScriptContextPtr context, ScriptParams *inputParams)
{
INTERPRETER_LOGI(inter, context, "ScriptFunction execute %s", functionName_.c_str());
UScriptContextPtr funcContext = std::make_shared<UScriptInterpretContext>();
if (funcContext == nullptr) {
USCRIPT_LOGE("[interpreter-%d] Fail to create context for function %s",
inter.GetInstanceId(), functionName_.c_str());
return std::make_shared<ErrorValue>(USCRIPT_ERROR_CREATE_OBJ);
}
if (inputParams == nullptr || params_ == nullptr) {
if (params_ != nullptr || inputParams != nullptr) {
USCRIPT_LOGE("[interpreter-%d] ScriptFunction::Execute param not match %s",
inter.GetInstanceId(), functionName_.c_str());
return std::make_shared<ErrorValue>(USCRIPT_ERROR_INTERPRET);
}
} else {
if (params_->GetParams().size() != inputParams->GetParams().size()) {
USCRIPT_LOGE("[interpreter-%d] ScriptFunction::Execute param not match %s",
inter.GetInstanceId(), functionName_.c_str());
return std::make_shared<ErrorValue>(USCRIPT_ERROR_INTERPRET);
}
size_t index = 0;
std::vector<std::string> paramNames = GetParamNames(inter, context);
for (auto expression : inputParams->GetParams()) {
UScriptValuePtr var = expression->Execute(inter, context);
if (var == nullptr || var->GetValueType() == UScriptValue::VALUE_TYPE_ERROR) {
USCRIPT_LOGE("[interpreter-%d] ScriptFunction::Execute fail to computer param %s",
inter.GetInstanceId(), functionName_.c_str());
return std::make_shared<ErrorValue>(USCRIPT_NOTEXIST_INSTRUCTION);
}
if (index >= paramNames.size()) {
USCRIPT_LOGE("[interpreter-%d] ScriptFunction::Execute invalid index %zu param %s",
inter.GetInstanceId(), index, functionName_.c_str());
return std::make_shared<ErrorValue>(USCRIPT_NOTEXIST_INSTRUCTION);
}
funcContext->UpdateVariables(inter, var, paramNames, index);
}
}
UScriptStatementResult result = statements_->Execute(inter, funcContext);
INTERPRETER_LOGI(inter, context, "ScriptFunction execute %s result %s", functionName_.c_str(),
UScriptStatementResult::ScriptToString(&result).c_str());
return result.GetResultValue();
}
std::vector<std::string> ScriptFunction::GetParamNames(ScriptInterpreter &inter,
UScriptContextPtr context) const
{
int32_t ret;
std::vector<std::string> names;
for (auto expression : params_->GetParams()) {
std::string varName;
ret = IdentifierExpression::GetIdentifierName(expression, varName);
if (ret != USCRIPT_SUCCESS) {
INTERPRETER_LOGE(inter, context, "Fail to get param name %s", functionName_.c_str());
return names;
}
names.push_back(varName);
}
return names;
}
}