solidity/libsolidity/lsp/RenameSymbol.cpp
2022-07-08 11:52:45 +02:00

317 lines
11 KiB
C++

/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
#include <libsolidity/lsp/RenameSymbol.h>
#include <libsolidity/lsp/Utils.h>
#include <libyul/AST.h>
#include <fmt/format.h>
#include <memory>
#include <string>
#include <vector>
using namespace solidity::frontend;
using namespace solidity::langutil;
using namespace solidity::lsp;
using namespace std;
namespace
{
CallableDeclaration const* extractCallableDeclaration(FunctionCall const& _functionCall)
{
if (
auto const* functionType = dynamic_cast<FunctionType const*>(_functionCall.expression().annotation().type);
functionType && functionType->hasDeclaration()
)
if (auto const* functionDefinition = dynamic_cast<FunctionDefinition const*>(&functionType->declaration()))
return functionDefinition;
return nullptr;
}
}
void RenameSymbol::operator()(MessageID _id, Json::Value const& _args)
{
auto const&& [sourceUnitName, lineColumn] = extractSourceUnitNameAndLineColumn(_args);
string const newName = _args["newName"].asString();
string const uri = _args["textDocument"]["uri"].asString();
ASTNode const* sourceNode = m_server.astNodeAtSourceLocation(sourceUnitName, lineColumn);
m_symbolName = {};
m_declarationToRename = nullptr;
m_sourceUnits = { &m_server.compilerStack().ast(sourceUnitName) };
m_locations.clear();
optional<int> cursorBytePosition = charStreamProvider()
.charStream(sourceUnitName)
.translateLineColumnToPosition(lineColumn);
solAssert(cursorBytePosition.has_value(), "Expected source pos");
extractNameAndDeclaration(*sourceNode, *cursorBytePosition);
// Find all source units using this symbol
for (auto const& [name, content]: fileRepository().sourceUnits())
{
auto const& sourceUnit = m_server.compilerStack().ast(name);
for (auto const* referencedSourceUnit: sourceUnit.referencedSourceUnits(true, util::convertContainer<set<SourceUnit const*>>(m_sourceUnits)))
if (*referencedSourceUnit->location().sourceName == sourceUnitName)
{
m_sourceUnits.insert(&sourceUnit);
break;
}
}
// Origin source unit should always be checked
m_sourceUnits.insert(&m_declarationToRename->sourceUnit());
Visitor visitor(*this);
for (auto const* sourceUnit: m_sourceUnits)
sourceUnit->accept(visitor);
// Apply changes in reverse order (will iterate in reverse)
sort(m_locations.begin(), m_locations.end());
Json::Value reply = Json::objectValue;
reply["changes"] = Json::objectValue;
Json::Value edits = Json::arrayValue;
for (auto i = m_locations.rbegin(); i != m_locations.rend(); i++)
{
solAssert(i->isValid());
// Replace in our file repository
string const uri = fileRepository().sourceUnitNameToUri(*i->sourceName);
string buffer = fileRepository().sourceUnits().at(*i->sourceName);
buffer.replace((size_t)i->start, (size_t)(i->end - i->start), newName);
fileRepository().setSourceByUri(uri, std::move(buffer));
Json::Value edit = Json::objectValue;
edit["range"] = toRange(*i);
edit["newText"] = newName;
// Record changes for the client
edits.append(edit);
if (i + 1 == m_locations.rend() || (i + 1)->sourceName != i->sourceName)
{
reply["changes"][uri] = edits;
edits = Json::arrayValue;
}
}
client().reply(_id, reply);
}
void RenameSymbol::extractNameAndDeclaration(ASTNode const& _node, int _cursorBytePosition)
{
// Identify symbol name and node
if (auto const* declaration = dynamic_cast<Declaration const*>(&_node))
{
if (declaration->nameLocation().containsOffset(_cursorBytePosition))
{
m_symbolName = declaration->name();
m_declarationToRename = declaration;
}
else if (auto const* importDirective = dynamic_cast<ImportDirective const*>(declaration))
extractNameAndDeclaration(*importDirective, _cursorBytePosition);
}
else if (auto const* identifier = dynamic_cast<Identifier const*>(&_node))
{
if (auto const* declReference = dynamic_cast<Declaration const*>(identifier->annotation().referencedDeclaration))
{
m_symbolName = identifier->name();
m_declarationToRename = declReference;
}
}
else if (auto const* identifierPath = dynamic_cast<IdentifierPath const*>(&_node))
extractNameAndDeclaration(*identifierPath, _cursorBytePosition);
else if (auto const* memberAccess = dynamic_cast<MemberAccess const*>(&_node))
{
m_symbolName = memberAccess->memberName();
m_declarationToRename = memberAccess->annotation().referencedDeclaration;
}
else if (auto const* functionCall = dynamic_cast<FunctionCall const*>(&_node))
extractNameAndDeclaration(*functionCall, _cursorBytePosition);
else if (auto const* inlineAssembly = dynamic_cast<InlineAssembly const*>(&_node))
extractNameAndDeclaration(*inlineAssembly, _cursorBytePosition);
else
solAssert(false, "Unexpected ASTNODE id: " + to_string(_node.id()));
lspDebug(fmt::format("Goal: rename '{}', loc: {}-{}", m_symbolName, m_declarationToRename->nameLocation().start, m_declarationToRename->nameLocation().end));
}
void RenameSymbol::extractNameAndDeclaration(ImportDirective const& _importDirective, int _cursorBytePosition)
{
for (ImportDirective::SymbolAlias const& symbolAlias: _importDirective.symbolAliases())
if (symbolAlias.location.containsOffset(_cursorBytePosition))
{
solAssert(symbolAlias.alias);
m_symbolName = *symbolAlias.alias;
m_declarationToRename = symbolAlias.symbol->annotation().referencedDeclaration;
break;
}
}
void RenameSymbol::Visitor::endVisit(ImportDirective const& _node)
{
// Handles SourceUnit aliases
if (handleGenericDeclaration(_node))
return;
for (ImportDirective::SymbolAlias const& symbolAlias: _node.symbolAliases())
if (
symbolAlias.alias != nullptr &&
*symbolAlias.alias == m_outer.m_symbolName &&
symbolAlias.symbol->annotation().referencedDeclaration == m_outer.m_declarationToRename
)
m_outer.m_locations.emplace_back(symbolAlias.location);
}
void RenameSymbol::extractNameAndDeclaration(FunctionCall const& _functionCall, int _cursorBytePosition)
{
if (auto const* functionDefinition = extractCallableDeclaration(_functionCall))
for (size_t i = 0; i < _functionCall.names().size(); i++)
if (_functionCall.nameLocations()[i].containsOffset(_cursorBytePosition))
{
m_symbolName = *_functionCall.names()[i];
for (size_t j = 0; j < functionDefinition->parameters().size(); j++)
if (
functionDefinition->parameters()[j] &&
functionDefinition->parameters()[j]->name() == m_symbolName
)
m_declarationToRename = functionDefinition->parameters()[j].get();
return;
}
}
void RenameSymbol::Visitor::endVisit(FunctionCall const& _node)
{
SourceLocation nameLocationInFunctionCall;
for (size_t i = 0; i < _node.names().size(); i++)
if (_node.names()[i] && *_node.names()[i] == m_outer.m_symbolName)
nameLocationInFunctionCall = _node.nameLocations()[i];
if (!nameLocationInFunctionCall.isValid())
return;
if (auto const* functionDefinition = extractCallableDeclaration(_node))
for (size_t j = 0; j < functionDefinition->parameters().size(); j++)
if (
functionDefinition->parameters()[j] &&
*functionDefinition->parameters()[j] == *m_outer.m_declarationToRename
)
m_outer.m_locations.emplace_back(nameLocationInFunctionCall);
}
void RenameSymbol::Visitor::endVisit(MemberAccess const& _node)
{
if (
m_outer.m_symbolName == _node.memberName() &&
*m_outer.m_declarationToRename == *_node.annotation().referencedDeclaration
)
m_outer.m_locations.emplace_back(_node.memberLocation());
}
void RenameSymbol::Visitor::endVisit(Identifier const& _node)
{
if (
m_outer.m_symbolName == _node.name() &&
*m_outer.m_declarationToRename == *_node.annotation().referencedDeclaration
)
m_outer.m_locations.emplace_back(_node.location());
}
void RenameSymbol::extractNameAndDeclaration(IdentifierPath const& _identifierPath, int _cursorBytePosition)
{
// iterate through the elements of the path to find the one the cursor is on
size_t numIdentifiers = _identifierPath.pathLocations().size();
for (size_t i = 0; i < numIdentifiers; i++)
{
auto& location = _identifierPath.pathLocations()[i];
if (location.containsOffset(_cursorBytePosition))
{
solAssert(_identifierPath.annotation().pathDeclarations.size() == numIdentifiers);
solAssert(_identifierPath.path().size() == numIdentifiers);
m_declarationToRename = _identifierPath.annotation().pathDeclarations[i];
m_symbolName = _identifierPath.path()[i];
}
}
}
void RenameSymbol::Visitor::endVisit(IdentifierPath const& _node)
{
std::vector<Declaration const*>& declarations = _node.annotation().pathDeclarations;
solAssert(declarations.size() == _node.path().size());
for (size_t i = 0; i < _node.path().size(); i++)
if (
_node.path()[i] == m_outer.m_symbolName &&
declarations[i] == m_outer.m_declarationToRename
)
m_outer.m_locations.emplace_back(_node.pathLocations()[i]);
}
void RenameSymbol::extractNameAndDeclaration(InlineAssembly const& _inlineAssembly, int _cursorBytePosition)
{
for (auto&& [identifier, externalReference]: _inlineAssembly.annotation().externalReferences)
{
SourceLocation location = yul::nativeLocationOf(*identifier);
location.end -= static_cast<int>(externalReference.suffix.size() + 1);
if (location.containsOffset(_cursorBytePosition))
{
m_declarationToRename = externalReference.declaration;
m_symbolName = identifier->name.str();
if (!externalReference.suffix.empty())
m_symbolName = m_symbolName.substr(0, m_symbolName.length() - externalReference.suffix.size() - 1);
break;
}
}
}
void RenameSymbol::Visitor::endVisit(InlineAssembly const& _node)
{
for (auto&& [identifier, externalReference]: _node.annotation().externalReferences)
{
string identifierName = identifier->name.str();
if (!externalReference.suffix.empty())
identifierName = identifierName.substr(0, identifierName.length() - externalReference.suffix.size() - 1);
if (
externalReference.declaration == m_outer.m_declarationToRename &&
identifierName == m_outer.m_symbolName
)
{
SourceLocation location = yul::nativeLocationOf(*identifier);
location.end -= static_cast<int>(externalReference.suffix.size() + 1);
m_outer.m_locations.emplace_back(location);
}
}
}