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ASTJsonImporter.cpp
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/*
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
/**
* @author julius <[email protected]>
* @date 2019
*Component that imports an AST from json format to the internal format
*/
#include <libsolidity/ast/ASTJsonImporter.h>
#include <libsolidity/ast/UserDefinableOperators.h>
#include <libyul/AsmJsonImporter.h>
#include <libyul/AST.h>
#include <libyul/Dialect.h>
#include <libyul/backends/evm/EVMDialect.h>
#include <liblangutil/Exceptions.h>
#include <liblangutil/Scanner.h>
#include <liblangutil/SourceLocation.h>
#include <liblangutil/Token.h>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string.hpp>
#include <range/v3/algorithm/find_if.hpp>
namespace solidity::frontend
{
using SourceLocation = langutil::SourceLocation;
template<class T>
ASTPointer<T> ASTJsonImporter::nullOrCast(Json const& _json)
{
if (_json.is_null())
return nullptr;
else
return std::dynamic_pointer_cast<T>(convertJsonToASTNode(_json));
}
// ============ public ===========================
std::map<std::string, ASTPointer<SourceUnit>> ASTJsonImporter::jsonToSourceUnit(std::map<std::string, Json> const& _sourceList)
{
for (auto const& src: _sourceList)
m_sourceNames.emplace_back(std::make_shared<std::string const>(src.first));
for (auto const& srcPair: _sourceList)
{
astAssert(!srcPair.second.is_null());
astAssert(member(srcPair.second,"nodeType") == "SourceUnit", "The 'nodeType' of the highest node must be 'SourceUnit'.");
m_sourceUnits[srcPair.first] = createSourceUnit(srcPair.second, srcPair.first);
}
return m_sourceUnits;
}
// ============ private ===========================
// =========== general creation functions ==============
template <typename T, typename... Args>
ASTPointer<T> ASTJsonImporter::createASTNode(Json const& _node, Args&&... _args)
{
static_assert(std::is_same_v<Json::number_unsigned_t, uint64_t>);
astAssert(member(_node, "id").is_number_integer(), "'id'-field must be 64bit integer.");
int64_t id = static_cast<Json::number_integer_t>(_node["id"]);
astAssert(m_usedIDs.insert(id).second, "Found duplicate node ID!");
auto n = std::make_shared<T>(
id,
createSourceLocation(_node),
std::forward<Args>(_args)...
);
return n;
}
SourceLocation const ASTJsonImporter::createSourceLocation(Json const& _node)
{
astAssert(member(_node, "src").is_string(), "'src' must be a string");
return solidity::langutil::parseSourceLocation(_node["src"].get<std::string>(), m_sourceNames);
}
std::optional<std::vector<SourceLocation>> ASTJsonImporter::createSourceLocations(Json const& _node) const
{
std::vector<SourceLocation> locations;
if (_node.contains("nameLocations") && _node["nameLocations"].is_array())
{
for (auto const& val: _node["nameLocations"])
locations.emplace_back(langutil::parseSourceLocation(val.get<std::string>(), m_sourceNames));
return locations;
}
return std::nullopt;
}
SourceLocation ASTJsonImporter::createNameSourceLocation(Json const& _node)
{
astAssert(member(_node, "nameLocation").is_string(), "'nameLocation' must be a string");
return solidity::langutil::parseSourceLocation(_node["nameLocation"].get<std::string>(), m_sourceNames);
}
SourceLocation ASTJsonImporter::createKeyNameSourceLocation(Json const& _node)
{
astAssert(member(_node, "keyNameLocation").is_string(), "'keyNameLocation' must be a string");
return solidity::langutil::parseSourceLocation(_node["keyNameLocation"].get<std::string>(), m_sourceNames);
}
SourceLocation ASTJsonImporter::createValueNameSourceLocation(Json const& _node)
{
astAssert(member(_node, "valueNameLocation").is_string(), "'valueNameLocation' must be a string");
return solidity::langutil::parseSourceLocation(_node["valueNameLocation"].get<std::string>(), m_sourceNames);
}
template<class T>
ASTPointer<T> ASTJsonImporter::convertJsonToASTNode(Json const& _node)
{
ASTPointer<T> ret = std::dynamic_pointer_cast<T>(convertJsonToASTNode(_node));
astAssert(ret, "cast of converted json-node must not be nullptr");
return ret;
}
ASTPointer<ASTNode> ASTJsonImporter::convertJsonToASTNode(Json const& _json)
{
astAssert(_json["nodeType"].is_string() && _json.contains("id"), "JSON-Node needs to have 'nodeType' and 'id' fields.");
std::string nodeType = _json["nodeType"].get<std::string>();
if (nodeType == "PragmaDirective")
return createPragmaDirective(_json);
if (nodeType == "ImportDirective")
return createImportDirective(_json);
if (nodeType == "ContractDefinition")
return createContractDefinition(_json);
if (nodeType == "IdentifierPath")
return createIdentifierPath(_json);
if (nodeType == "InheritanceSpecifier")
return createInheritanceSpecifier(_json);
if (nodeType == "UsingForDirective")
return createUsingForDirective(_json);
if (nodeType == "StructDefinition")
return createStructDefinition(_json);
if (nodeType == "EnumDefinition")
return createEnumDefinition(_json);
if (nodeType == "EnumValue")
return createEnumValue(_json);
if (nodeType == "UserDefinedValueTypeDefinition")
return createUserDefinedValueTypeDefinition(_json);
if (nodeType == "ParameterList")
return createParameterList(_json);
if (nodeType == "OverrideSpecifier")
return createOverrideSpecifier(_json);
if (nodeType == "FunctionDefinition")
return createFunctionDefinition(_json);
if (nodeType == "VariableDeclaration")
return createVariableDeclaration(_json);
if (nodeType == "ModifierDefinition")
return createModifierDefinition(_json);
if (nodeType == "ModifierInvocation")
return createModifierInvocation(_json);
if (nodeType == "EventDefinition")
return createEventDefinition(_json);
if (nodeType == "ErrorDefinition")
return createErrorDefinition(_json);
if (nodeType == "ElementaryTypeName")
return createElementaryTypeName(_json);
if (nodeType == "UserDefinedTypeName")
return createUserDefinedTypeName(_json);
if (nodeType == "FunctionTypeName")
return createFunctionTypeName(_json);
if (nodeType == "Mapping")
return createMapping(_json);
if (nodeType == "ArrayTypeName")
return createArrayTypeName(_json);
if (nodeType == "InlineAssembly")
return createInlineAssembly(_json);
if (nodeType == "Block")
return createBlock(_json, false);
if (nodeType == "UncheckedBlock")
return createBlock(_json, true);
if (nodeType == "PlaceholderStatement")
return createPlaceholderStatement(_json);
if (nodeType == "IfStatement")
return createIfStatement(_json);
if (nodeType == "TryCatchClause")
return createTryCatchClause(_json);
if (nodeType == "TryStatement")
return createTryStatement(_json);
if (nodeType == "WhileStatement")
return createWhileStatement(_json, false);
if (nodeType == "DoWhileStatement")
return createWhileStatement(_json, true);
if (nodeType == "ForStatement")
return createForStatement(_json);
if (nodeType == "Continue")
return createContinue(_json);
if (nodeType == "Break")
return createBreak(_json);
if (nodeType == "Return")
return createReturn(_json);
if (nodeType == "EmitStatement")
return createEmitStatement(_json);
if (nodeType == "RevertStatement")
return createRevertStatement(_json);
if (nodeType == "Throw")
return createThrow(_json);
if (nodeType == "VariableDeclarationStatement")
return createVariableDeclarationStatement(_json);
if (nodeType == "ExpressionStatement")
return createExpressionStatement(_json);
if (nodeType == "Conditional")
return createConditional(_json);
if (nodeType == "Assignment")
return createAssignment(_json);
if (nodeType == "TupleExpression")
return createTupleExpression(_json);
if (nodeType == "UnaryOperation")
return createUnaryOperation(_json);
if (nodeType == "BinaryOperation")
return createBinaryOperation(_json);
if (nodeType == "FunctionCall")
return createFunctionCall(_json);
if (nodeType == "FunctionCallOptions")
return createFunctionCallOptions(_json);
if (nodeType == "NewExpression")
return createNewExpression(_json);
if (nodeType == "MemberAccess")
return createMemberAccess(_json);
if (nodeType == "IndexAccess")
return createIndexAccess(_json);
if (nodeType == "IndexRangeAccess")
return createIndexRangeAccess(_json);
if (nodeType == "Identifier")
return createIdentifier(_json);
if (nodeType == "ElementaryTypeNameExpression")
return createElementaryTypeNameExpression(_json);
if (nodeType == "Literal")
return createLiteral(_json);
if (nodeType == "StructuredDocumentation")
return createDocumentation(_json);
if (nodeType == "StorageLayoutSpecifier")
return createStorageLayoutSpecifier(_json);
else
astAssert(false, "Unknown type of ASTNode: " + nodeType);
// FIXME: Workaround for spurious GCC 12.1 warning (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105794)
util::unreachable();
}
// ============ functions to instantiate the AST-Nodes from Json-Nodes ==============
ASTPointer<SourceUnit> ASTJsonImporter::createSourceUnit(Json const& _node, std::string const& _srcName)
{
std::optional<std::string> license;
if (_node.contains("license") && !_node["license"].is_null())
license = _node["license"].get<std::string>();
bool experimentalSolidity = false;
if (_node.contains("experimentalSolidity") && !_node["experimentalSolidity"].is_null())
experimentalSolidity = _node["experimentalSolidity"].get<bool>();
std::vector<ASTPointer<ASTNode>> nodes;
for (auto& child: member(_node, "nodes"))
nodes.emplace_back(convertJsonToASTNode(child));
ASTPointer<SourceUnit> tmp = createASTNode<SourceUnit>(_node, license, nodes, experimentalSolidity);
tmp->annotation().path = _srcName;
return tmp;
}
ASTPointer<PragmaDirective> ASTJsonImporter::createPragmaDirective(Json const& _node)
{
std::vector<Token> tokens;
std::vector<ASTString> literals;
for (auto const& lit: member(_node, "literals"))
{
std::string l = lit.get<std::string>();
literals.push_back(l);
tokens.push_back(scanSingleToken(l));
}
return createASTNode<PragmaDirective>(_node, tokens, literals);
}
ASTPointer<ImportDirective> ASTJsonImporter::createImportDirective(Json const& _node)
{
ASTPointer<ASTString> unitAlias = memberAsASTString(_node, "unitAlias");
ASTPointer<ASTString> path = memberAsASTString(_node, "file");
ImportDirective::SymbolAliasList symbolAliases;
for (auto& tuple: member(_node, "symbolAliases"))
{
astAssert(tuple["local"].is_null() || tuple["local"].is_string(), "expected 'local' to be a string or null!");
symbolAliases.push_back({
createIdentifier(tuple["foreign"]),
tuple["local"].is_null() ? nullptr : std::make_shared<ASTString>(tuple["local"].get<std::string>()),
createSourceLocation(tuple["foreign"])}
);
}
ASTPointer<ImportDirective> tmp = createASTNode<ImportDirective>(
_node,
path,
unitAlias,
createNameSourceLocation(_node),
std::move(symbolAliases)
);
astAssert(_node["absolutePath"].is_string(), "Expected 'absolutePath' to be a string!");
tmp->annotation().absolutePath = _node["absolutePath"].get<std::string>();
return tmp;
}
ASTPointer<ContractDefinition> ASTJsonImporter::createContractDefinition(Json const& _node)
{
astAssert(_node["name"].is_string(), "Expected 'name' to be a string!");
std::vector<ASTPointer<InheritanceSpecifier>> baseContracts;
for (auto& base: _node["baseContracts"])
baseContracts.push_back(createInheritanceSpecifier(base));
std::vector<ASTPointer<ASTNode>> subNodes;
for (auto& subnode: _node["nodes"])
subNodes.push_back(convertJsonToASTNode(subnode));
return createASTNode<ContractDefinition>(
_node,
std::make_shared<ASTString>(_node["name"].get<std::string>()),
createNameSourceLocation(_node),
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
baseContracts,
subNodes,
contractKind(_node),
memberAsBool(_node, "abstract"),
nullOrCast<StorageLayoutSpecifier>(member(_node, "storageLayout"))
);
}
ASTPointer<StorageLayoutSpecifier> ASTJsonImporter::createStorageLayoutSpecifier(Json const& _node)
{
astAssert(_node.contains("baseSlotExpression"), "Expected field \"baseSlotExpression\" is missing.");
return createASTNode<StorageLayoutSpecifier>(
_node,
convertJsonToASTNode<Expression>(_node["baseSlotExpression"])
);
}
ASTPointer<IdentifierPath> ASTJsonImporter::createIdentifierPath(Json const& _node)
{
astAssert(_node["name"].is_string(), "Expected 'name' to be a string!");
std::vector<ASTString> namePath;
std::vector<SourceLocation> namePathLocations;
std::vector<std::string> strs;
std::string nameString = member(_node, "name").get<std::string>();
boost::algorithm::split(strs, nameString, boost::is_any_of("."));
astAssert(!strs.empty(), "Expected at least one element in IdentifierPath.");
for (std::string s: strs)
{
astAssert(!s.empty(), "Expected non-empty string for IdentifierPath element.");
namePath.emplace_back(s);
}
if (_node.contains("nameLocations") && _node["nameLocations"].is_array())
for (auto const& val: _node["nameLocations"])
namePathLocations.emplace_back(langutil::parseSourceLocation(val.get<std::string>(), m_sourceNames));
else
namePathLocations.resize(namePath.size());
astAssert(
namePath.size() == namePathLocations.size(),
"SourceLocations don't match name paths."
);
return createASTNode<IdentifierPath>(
_node,
namePath,
namePathLocations
);
}
ASTPointer<InheritanceSpecifier> ASTJsonImporter::createInheritanceSpecifier(Json const& _node)
{
std::vector<ASTPointer<Expression>> arguments;
for (auto& arg: member(_node, "arguments"))
arguments.push_back(convertJsonToASTNode<Expression>(arg));
return createASTNode<InheritanceSpecifier>(
_node,
createIdentifierPath(member(_node, "baseName")),
member(_node, "arguments").is_null() ? nullptr : std::make_unique<std::vector<ASTPointer<Expression>>>(arguments)
);
}
ASTPointer<UsingForDirective> ASTJsonImporter::createUsingForDirective(Json const& _node)
{
std::vector<ASTPointer<IdentifierPath>> functions;
std::vector<std::optional<Token>> operators;
if (_node.contains("libraryName"))
{
astAssert(!_node["libraryName"].is_array());
astAssert(!_node["libraryName"].contains("operator"));
functions.emplace_back(createIdentifierPath(_node["libraryName"]));
operators.emplace_back(std::nullopt);
}
else if (_node.contains("functionList"))
for (Json const& function: _node["functionList"])
{
if (function.contains("function"))
{
astAssert(!function.contains("operator"));
astAssert(!function.contains("definition"));
functions.emplace_back(createIdentifierPath(function["function"]));
operators.emplace_back(std::nullopt);
}
else
{
astAssert(function.contains("operator"));
astAssert(function.contains("definition"));
Token const operatorName = scanSingleToken(function["operator"]);
astAssert(util::contains(frontend::userDefinableOperators, operatorName));
functions.emplace_back(createIdentifierPath(function["definition"]));
operators.emplace_back(operatorName);
}
}
return createASTNode<UsingForDirective>(
_node,
std::move(functions),
std::move(operators),
!_node.contains("libraryName"),
(_node.contains("typeName") && !_node["typeName"].is_null()) ? convertJsonToASTNode<TypeName>(_node["typeName"]) : nullptr,
memberAsBool(_node, "global")
);
}
ASTPointer<ASTNode> ASTJsonImporter::createStructDefinition(Json const& _node)
{
std::vector<ASTPointer<VariableDeclaration>> members;
for (auto& member: _node["members"])
members.push_back(createVariableDeclaration(member));
return createASTNode<StructDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
members,
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr
);
}
ASTPointer<EnumDefinition> ASTJsonImporter::createEnumDefinition(Json const& _node)
{
std::vector<ASTPointer<EnumValue>> members;
for (auto& member: _node["members"])
members.push_back(createEnumValue(member));
return createASTNode<EnumDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
members,
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr
);
}
ASTPointer<EnumValue> ASTJsonImporter::createEnumValue(Json const& _node)
{
return createASTNode<EnumValue>(
_node,
memberAsASTString(_node, "name"),
_node.contains("documentation") && !_node["documentation"].is_null() ? createDocumentation(member(_node, "documentation")) : nullptr
);
}
ASTPointer<UserDefinedValueTypeDefinition> ASTJsonImporter::createUserDefinedValueTypeDefinition(Json const& _node)
{
return createASTNode<UserDefinedValueTypeDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
convertJsonToASTNode<TypeName>(member(_node, "underlyingType"))
);
}
ASTPointer<ParameterList> ASTJsonImporter::createParameterList(Json const& _node)
{
std::vector<ASTPointer<VariableDeclaration>> parameters;
for (auto& param: _node["parameters"])
parameters.push_back(createVariableDeclaration(param));
return createASTNode<ParameterList>(
_node,
parameters
);
}
ASTPointer<OverrideSpecifier> ASTJsonImporter::createOverrideSpecifier(Json const& _node)
{
std::vector<ASTPointer<IdentifierPath>> overrides;
if ( _node.contains("overrides"))
for (auto& param: _node["overrides"])
overrides.push_back(createIdentifierPath(param));
return createASTNode<OverrideSpecifier>(
_node,
overrides
);
}
ASTPointer<FunctionDefinition> ASTJsonImporter::createFunctionDefinition(Json const& _node)
{
astAssert(_node["kind"].is_string(), "Expected 'kind' to be a string!");
Token kind;
bool freeFunction = false;
std::string kindStr = member(_node, "kind").get<std::string>();
if (kindStr == "constructor")
kind = Token::Constructor;
else if (kindStr == "function")
kind = Token::Function;
else if (kindStr == "fallback")
kind = Token::Fallback;
else if (kindStr == "receive")
kind = Token::Receive;
else if (kindStr == "freeFunction")
{
kind = Token::Function;
freeFunction = true;
}
else
astAssert(false, "Expected 'kind' to be one of [constructor, function, fallback, receive]");
std::vector<ASTPointer<ModifierInvocation>> modifiers;
for (auto& mod: member(_node, "modifiers"))
modifiers.push_back(createModifierInvocation(mod));
Visibility vis = Visibility::Default;
// Ignore public visibility for constructors
if (kind == Token::Constructor)
vis = (visibility(_node) == Visibility::Public) ? Visibility::Default : visibility(_node);
else if (!freeFunction)
vis = visibility(_node);
return createASTNode<FunctionDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
vis,
stateMutability(_node),
freeFunction,
kind,
memberAsBool(_node, "virtual"),
(_node.contains("overrides") && !_node["overrides"].is_null()) ? createOverrideSpecifier(member(_node, "overrides")) : nullptr,
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
createParameterList(member(_node, "parameters")),
modifiers,
createParameterList(member(_node, "returnParameters")),
memberAsBool(_node, "implemented") ? createBlock(member(_node, "body"), false) : nullptr
);
}
ASTPointer<VariableDeclaration> ASTJsonImporter::createVariableDeclaration(Json const& _node)
{
astAssert(_node["name"].is_string(), "Expected 'name' to be a string!");
VariableDeclaration::Mutability mutability{};
astAssert(member(_node, "mutability").is_string(), "'mutability' expected to be string.");
std::string const mutabilityStr = member(_node, "mutability").get<std::string>();
if (mutabilityStr == "constant")
{
mutability = VariableDeclaration::Mutability::Constant;
astAssert(memberAsBool(_node, "constant"));
}
else
{
astAssert(!memberAsBool(_node, "constant"));
if (mutabilityStr == "mutable")
mutability = VariableDeclaration::Mutability::Mutable;
else if (mutabilityStr == "immutable")
mutability = VariableDeclaration::Mutability::Immutable;
else
astAssert(false);
}
return createASTNode<VariableDeclaration>(
_node,
nullOrCast<TypeName>(member(_node, "typeName")),
std::make_shared<ASTString>(member(_node, "name").get<std::string>()),
createNameSourceLocation(_node),
nullOrCast<Expression>(member(_node, "value")),
visibility(_node),
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
(_node.contains("indexed") && !_node["indexed"].is_null()) ? memberAsBool(_node, "indexed") : false,
mutability,
(_node.contains("overrides") && !_node["overrides"].is_null()) ? createOverrideSpecifier(member(_node, "overrides")) : nullptr,
location(_node)
);
}
ASTPointer<ModifierDefinition> ASTJsonImporter::createModifierDefinition(Json const& _node)
{
return createASTNode<ModifierDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
createParameterList(member(_node, "parameters")),
memberAsBool(_node, "virtual"),
(_node.contains("overrides") && !_node["overrides"].is_null()) ? createOverrideSpecifier(member(_node, "overrides")) : nullptr,
(_node.contains("body") && !_node["body"].is_null()) ? createBlock(member(_node, "body"), false) : nullptr
);
}
ASTPointer<ModifierInvocation> ASTJsonImporter::createModifierInvocation(Json const& _node)
{
std::vector<ASTPointer<Expression>> arguments;
for (auto& arg: member(_node, "arguments"))
arguments.push_back(convertJsonToASTNode<Expression>(arg));
return createASTNode<ModifierInvocation>(
_node,
createIdentifierPath(member(_node, "modifierName")),
member(_node, "arguments").is_null() ? nullptr : std::make_unique<std::vector<ASTPointer<Expression>>>(arguments)
);
}
ASTPointer<EventDefinition> ASTJsonImporter::createEventDefinition(Json const& _node)
{
return createASTNode<EventDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
createParameterList(member(_node, "parameters")),
memberAsBool(_node, "anonymous")
);
}
ASTPointer<ErrorDefinition> ASTJsonImporter::createErrorDefinition(Json const& _node)
{
return createASTNode<ErrorDefinition>(
_node,
memberAsASTString(_node, "name"),
createNameSourceLocation(_node),
(_node.contains("documentation") && !_node["documentation"].is_null()) ? createDocumentation(member(_node, "documentation")) : nullptr,
createParameterList(member(_node, "parameters"))
);
}
ASTPointer<ElementaryTypeName> ASTJsonImporter::createElementaryTypeName(Json const& _node)
{
unsigned short firstNum;
unsigned short secondNum;
astAssert(_node["name"].is_string(), "Expected 'name' to be a string!");
std::string name = member(_node, "name").get<std::string>();
Token token;
std::tie(token, firstNum, secondNum) = TokenTraits::fromIdentifierOrKeyword(name);
ElementaryTypeNameToken elem(token, firstNum, secondNum);
std::optional<StateMutability> mutability = {};
if (_node.contains("stateMutability"))
mutability = stateMutability(_node);
return createASTNode<ElementaryTypeName>(_node, elem, mutability);
}
ASTPointer<UserDefinedTypeName> ASTJsonImporter::createUserDefinedTypeName(Json const& _node)
{
return createASTNode<UserDefinedTypeName>(
_node,
createIdentifierPath(member(_node, "pathNode"))
);
}
ASTPointer<FunctionTypeName> ASTJsonImporter::createFunctionTypeName(Json const& _node)
{
return createASTNode<FunctionTypeName>(
_node,
createParameterList(member(_node, "parameterTypes")),
createParameterList(member(_node, "returnParameterTypes")),
visibility(_node),
stateMutability(_node)
);
}
ASTPointer<Mapping> ASTJsonImporter::createMapping(Json const& _node)
{
return createASTNode<Mapping>(
_node,
convertJsonToASTNode<TypeName>(member(_node, "keyType")),
memberAsASTString(_node, "keyName"),
createKeyNameSourceLocation(_node),
convertJsonToASTNode<TypeName>(member(_node, "valueType")),
memberAsASTString(_node, "valueName"),
createValueNameSourceLocation(_node)
);
}
ASTPointer<ArrayTypeName> ASTJsonImporter::createArrayTypeName(Json const& _node)
{
return createASTNode<ArrayTypeName>(
_node,
convertJsonToASTNode<TypeName>(member(_node, "baseType")),
nullOrCast<Expression>(member(_node, "length"))
);
}
ASTPointer<InlineAssembly> ASTJsonImporter::createInlineAssembly(Json const& _node)
{
astAssert(_node["evmVersion"].is_string(), "Expected evmVersion to be a string!");
auto evmVersion = langutil::EVMVersion::fromString(_node["evmVersion"].get<std::string>());
astAssert(evmVersion.has_value(), "Invalid EVM version!");
astAssert(m_evmVersion == evmVersion, "Imported tree evm version differs from configured evm version!");
// TODO: Add test in test/linsolidity/ASTJSON/assembly. This requires adding support for eofVersion in ASTJSONTest
std::optional<uint8_t> eofVersion;
if (auto const it = _node.find("eofVersion"); it != _node.end())
{
eofVersion = it->get<uint8_t>();
astAssert(eofVersion > 0);
}
astAssert(m_eofVersion == eofVersion, "Imported tree EOF version differs from configured EOF version!");
yul::Dialect const& dialect = yul::EVMDialect::strictAssemblyForEVM(evmVersion.value(), eofVersion);
ASTPointer<std::vector<ASTPointer<ASTString>>> flags;
if (_node.contains("flags"))
{
flags = std::make_shared<std::vector<ASTPointer<ASTString>>>();
Json const& flagsNode = _node["flags"];
astAssert(flagsNode.is_array(), "Assembly flags must be an array.");
for (auto const& flag: flagsNode)
{
astAssert(flag.is_string(), "Assembly flag must be a string.");
flags->emplace_back(std::make_shared<ASTString>(flag.get<std::string>()));
}
}
std::shared_ptr<yul::AST> operations = std::make_shared<yul::AST>(
yul::AsmJsonImporter(dialect, m_sourceNames).createAST(member(_node, "AST"))
);
return createASTNode<InlineAssembly>(
_node,
nullOrASTString(_node, "documentation"),
dialect,
std::move(flags),
operations
);
}
ASTPointer<Block> ASTJsonImporter::createBlock(Json const& _node, bool _unchecked)
{
std::vector<ASTPointer<Statement>> statements;
for (auto& stat: member(_node, "statements"))
statements.push_back(convertJsonToASTNode<Statement>(stat));
return createASTNode<Block>(
_node,
nullOrASTString(_node, "documentation"),
_unchecked,
statements
);
}
ASTPointer<PlaceholderStatement> ASTJsonImporter::createPlaceholderStatement(Json const& _node)
{
return createASTNode<PlaceholderStatement>(
_node,
nullOrASTString(_node, "documentation")
);
}
ASTPointer<IfStatement> ASTJsonImporter::createIfStatement(Json const& _node)
{
return createASTNode<IfStatement>(
_node,
nullOrASTString(_node, "documentation"),
convertJsonToASTNode<Expression>(member(_node, "condition")),
convertJsonToASTNode<Statement>(member(_node, "trueBody")),
nullOrCast<Statement>(member(_node, "falseBody"))
);
}
ASTPointer<TryCatchClause> ASTJsonImporter::createTryCatchClause(Json const& _node)
{
return createASTNode<TryCatchClause>(
_node,
memberAsASTString(_node, "errorName"),
nullOrCast<ParameterList>(member(_node, "parameters")),
convertJsonToASTNode<Block>(member(_node, "block"))
);
}
ASTPointer<TryStatement> ASTJsonImporter::createTryStatement(Json const& _node)
{
std::vector<ASTPointer<TryCatchClause>> clauses;
for (auto& param: _node["clauses"])
clauses.emplace_back(createTryCatchClause(param));
return createASTNode<TryStatement>(
_node,
nullOrASTString(_node, "documentation"),
convertJsonToASTNode<Expression>(member(_node, "externalCall")),
clauses
);
}
ASTPointer<WhileStatement> ASTJsonImporter::createWhileStatement(Json const& _node, bool _isDoWhile=false)
{
return createASTNode<WhileStatement>(
_node,
nullOrASTString(_node, "documentation"),
convertJsonToASTNode<Expression>(member(_node, "condition")),
convertJsonToASTNode<Statement>(member(_node, "body")),
_isDoWhile
);
}
ASTPointer<ForStatement> ASTJsonImporter::createForStatement(Json const& _node)
{
return createASTNode<ForStatement>(
_node,
nullOrASTString(_node, "documentation"),
nullOrCast<Statement>(member(_node, "initializationExpression")),
nullOrCast<Expression>(member(_node, "condition")),
nullOrCast<ExpressionStatement>(member(_node, "loopExpression")),
convertJsonToASTNode<Statement>(member(_node, "body"))
);
}
ASTPointer<Continue> ASTJsonImporter::createContinue(Json const& _node)
{
return createASTNode<Continue>(
_node,
nullOrASTString(_node, "documentation")
);
}
ASTPointer<Break> ASTJsonImporter::createBreak(Json const& _node)
{
return createASTNode<Break>(
_node,
nullOrASTString(_node, "documentation")
);
}
ASTPointer<Return> ASTJsonImporter::createReturn(Json const& _node)
{
return createASTNode<Return>(
_node,
nullOrASTString(_node, "documentation"),
nullOrCast<Expression>(member(_node, "expression"))
);
}
ASTPointer<Throw> ASTJsonImporter::createThrow(Json const& _node)
{
return createASTNode<Throw>(
_node,
nullOrASTString(_node, "documentation")
);
}
ASTPointer<EmitStatement> ASTJsonImporter::createEmitStatement(Json const& _node)
{
return createASTNode<EmitStatement>(
_node,
nullOrASTString(_node, "documentation"),
createFunctionCall(member(_node, "eventCall"))
);
}
ASTPointer<RevertStatement> ASTJsonImporter::createRevertStatement(Json const& _node)
{
return createASTNode<RevertStatement>(
_node,
nullOrASTString(_node, "documentation"),
createFunctionCall(member(_node, "errorCall"))
);
}
ASTPointer<VariableDeclarationStatement> ASTJsonImporter::createVariableDeclarationStatement(Json const& _node)
{
std::vector<ASTPointer<VariableDeclaration>> variables;
for (auto& var: member(_node, "declarations"))
variables.push_back(var.is_null() ? nullptr : createVariableDeclaration(var)); //unnamed components are empty pointers
return createASTNode<VariableDeclarationStatement>(
_node,
nullOrASTString(_node, "documentation"),
variables,
nullOrCast<Expression>(member(_node, "initialValue"))
);
}
ASTPointer<ExpressionStatement> ASTJsonImporter::createExpressionStatement(Json const& _node)
{
return createASTNode<ExpressionStatement>(
_node,
nullOrASTString(_node, "documentation"),
convertJsonToASTNode<Expression>(member(_node, "expression"))
);
}
ASTPointer<Conditional> ASTJsonImporter::createConditional(Json const& _node)
{
return createASTNode<Conditional>(
_node,
convertJsonToASTNode<Expression>(member(_node, "condition")),
convertJsonToASTNode<Expression>(member(_node, "trueExpression")),
convertJsonToASTNode<Expression>(member(_node, "falseExpression"))
);
}
ASTPointer<Assignment> ASTJsonImporter::createAssignment(Json const& _node)
{
return createASTNode<Assignment>(
_node,
convertJsonToASTNode<Expression>(member(_node, "leftHandSide")),
scanSingleToken(member(_node, "operator")),
convertJsonToASTNode<Expression>(member(_node, "rightHandSide"))
);
}
ASTPointer<TupleExpression> ASTJsonImporter::createTupleExpression(Json const& _node)
{
std::vector<ASTPointer<Expression>> components;
for (auto& comp: member(_node, "components"))
components.push_back(nullOrCast<Expression>(comp));
return createASTNode<TupleExpression>(
_node,
components,
memberAsBool(_node, "isInlineArray")
);
}
ASTPointer<UnaryOperation> ASTJsonImporter::createUnaryOperation(Json const& _node)
{
return createASTNode<UnaryOperation>(
_node,
scanSingleToken(member(_node, "operator")),
convertJsonToASTNode<Expression>(member(_node, "subExpression")),
memberAsBool(_node, "prefix")
);
}
ASTPointer<BinaryOperation> ASTJsonImporter::createBinaryOperation(Json const& _node)
{
return createASTNode<BinaryOperation>(
_node,
convertJsonToASTNode<Expression>(member(_node, "leftExpression")),
scanSingleToken(member(_node, "operator")),
convertJsonToASTNode<Expression>(member(_node, "rightExpression"))
);
}
ASTPointer<FunctionCall> ASTJsonImporter::createFunctionCall(Json const& _node)
{
std::vector<ASTPointer<Expression>> arguments;
for (auto& arg: member(_node, "arguments"))
arguments.push_back(convertJsonToASTNode<Expression>(arg));
std::vector<ASTPointer<ASTString>> names;
for (auto& name: member(_node, "names"))
{
astAssert(name.is_string(), "Expected 'names' members to be strings!");
names.push_back(std::make_shared<ASTString>(name.get<std::string>()));
}
std::optional<std::vector<SourceLocation>> sourceLocations = createSourceLocations(_node);
return createASTNode<FunctionCall>(
_node,
convertJsonToASTNode<Expression>(member(_node, "expression")),
arguments,
names,
sourceLocations ?
*sourceLocations :
std::vector<SourceLocation>(names.size())
);
}