Home | History | Annotate | Download | only in c2hal
      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "FunctionDeclaration.h"
     18 #include "VarDeclaration.h"
     19 #include "Type.h"
     20 
     21 #include <hidl-util/StringHelper.h>
     22 
     23 namespace android {
     24 
     25 FunctionDeclaration::FunctionDeclaration(Type* type,
     26                   const std::string &name,
     27                   std::vector<Declaration *> *params)
     28     : Declaration(""),
     29       mType(type),
     30       mParams(params)
     31     {
     32         setName(name);
     33     }
     34 
     35 FunctionDeclaration::~FunctionDeclaration() {
     36     delete mType;
     37 
     38     if(mParams != NULL) {
     39         for(auto* param : *mParams) {
     40             delete param;
     41         }
     42     }
     43     delete mParams;
     44 }
     45 
     46 void FunctionDeclaration::setName(const std::string &name) {
     47     Declaration::setName(name);
     48     forceCamelCase();
     49 }
     50 
     51 const Type* FunctionDeclaration::getType() const {
     52     return mType;
     53 }
     54 
     55 void FunctionDeclaration::generateSource(Formatter &out) const {
     56     out << getName();
     57 
     58     generateParams(out);
     59 
     60     if (!getType()->isVoid()) {
     61         out << " generates ("
     62             << getType()->decorateName(getName() + "Ret")
     63             << ")";
     64     }
     65 
     66     out << ";\n";
     67 }
     68 
     69 void FunctionDeclaration::generateParameterSource(Formatter &out) const {
     70     out << getType()->decorateName("(*" + getName() + ")");
     71 
     72     generateParams(out);
     73 }
     74 
     75 void FunctionDeclaration::processContents(AST &) {
     76     if (mParams->size() == 1 &&
     77         (*mParams)[0]->decType() == VarDeclaration::type()) {
     78 
     79         VarDeclaration* var = (VarDeclaration *)(*mParams)[0];
     80         if (var->getType()->isVoid()) {
     81             mParams->clear();
     82         }
     83     }
     84 }
     85 
     86 void FunctionDeclaration::generateParams(Formatter &out) const {
     87     out << "(";
     88 
     89     for (auto it = mParams->begin(); it != mParams->end(); ++it) {
     90         if (it != mParams->begin()) {
     91             out << ", ";
     92         }
     93 
     94         (*it)->generateParameterSource(out);
     95     }
     96 
     97     out << ")";
     98 }
     99 
    100 } //namespace android