mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//===- ClassHierarchyAnalysis.cpp - Analysis of class hierarchy -*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See http://swift.org/LICENSE.txt for license information
|
|
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "swift/SILAnalysis/ClassHierarchyAnalysis.h"
|
|
#include "swift/AST/ASTContext.h"
|
|
#include "swift/AST/Module.h"
|
|
#include "swift/SIL/SILInstruction.h"
|
|
#include "swift/SIL/SILValue.h"
|
|
#include "swift/SIL/SILModule.h"
|
|
|
|
using namespace swift;
|
|
|
|
void ClassHierarchyAnalysis::init() {
|
|
// For each class declaration in our V-table list:
|
|
for (auto &VT : M->getVTableList()) {
|
|
ClassDecl *C = VT.getClass();
|
|
// Ignore classes that are at the top of the class hierarchy:
|
|
if (!C->hasSuperclass())
|
|
continue;
|
|
|
|
// Add the superclass to the list of inherited classes.
|
|
ClassDecl *Super = C->getSuperclass()->getClassOrBoundGenericClass();
|
|
InheritedClasses.insert(Super);
|
|
}
|
|
}
|
|
|
|
void ClassHierarchyAnalysis::collectSubClasses(ClassDecl *C,
|
|
std::vector<ClassDecl*> &Sub) {
|
|
// TODO: Cache this search.
|
|
assert(Sub.empty() && "Incoming list is not empty");
|
|
for (auto &VT : M->getVTableList()) {
|
|
ClassDecl *CD = VT.getClass();
|
|
// Ignore classes that are at the top of the class hierarchy:
|
|
if (!CD->hasSuperclass())
|
|
continue;
|
|
|
|
// Add the superclass to the list of inherited classes.
|
|
ClassDecl *Super = CD->getSuperclass()->getClassOrBoundGenericClass();
|
|
if (Super == C) {
|
|
Sub.push_back(CD);
|
|
}
|
|
}
|
|
}
|
|
|
|
ClassHierarchyAnalysis::~ClassHierarchyAnalysis() {}
|