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Type: Extract usingForDirectivesForType() helper

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chriseth 2021-12-01 16:22:50 +01:00 committed by Kamil Śliwak
parent edb4bfa398
commit 261e819df7
1 changed files with 29 additions and 23 deletions
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52
libsolidity/ast/Types.cpp
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@ -48,6 +48,7 @@
#include <range/v3/view/reverse.hpp>
#include <range/v3/view/tail.hpp>
#include <range/v3/view/transform.hpp>
#include <range/v3/view/filter.hpp>
#include <limits>
#include <unordered_set>
@ -337,7 +338,10 @@ Type const* Type::fullEncodingType(bool _inLibraryCall, bool _encoderV2, bool) c
return encodingType;
}
MemberList::MemberMap Type::boundFunctions(Type const& _type, ASTNode const& _scope)
namespace
{
vector<UsingForDirective const*> usingForDirectivesForType(Type const& _type, ASTNode const& _scope)
{
vector<UsingForDirective const*> usingForDirectives;
SourceUnit const* sourceUnit = dynamic_cast<SourceUnit const*>(&_scope);
@ -362,6 +366,25 @@ MemberList::MemberMap Type::boundFunctions(Type const& _type, ASTNode const& _sc
if (auto refType = dynamic_cast<ReferenceType const*>(&_type))
typeLocation = refType->location();
return usingForDirectives | ranges::views::filter([&](UsingForDirective const* _directive) -> bool {
// Convert both types to pointers for comparison to see if the `using for` directive applies.
// Note that at this point we don't yet know if the functions are actually usable with the type.
// `_type` may not be convertible to the function parameter type.
return
!_directive->typeName() ||
*TypeProvider::withLocationIfReference(typeLocation, &_type, true) ==
*TypeProvider::withLocationIfReference(
typeLocation,
_directive->typeName()->annotation().type,
true
);
}) | ranges::to<vector<UsingForDirective const*>>;
}
}
MemberList::MemberMap Type::boundFunctions(Type const& _type, ASTNode const& _scope)
{
MemberList::MemberMap members;
set<pair<string, Declaration const*>> seenFunctions;
@ -381,27 +404,11 @@ MemberList::MemberMap Type::boundFunctions(Type const& _type, ASTNode const& _sc
members.emplace_back(&_function, asBoundFunction, *_name);
};
for (UsingForDirective const* ufd: usingForDirectives)
{
// Convert both types to pointers for comparison to see if the `using for`
// directive applies.
// Further down, we check more detailed for each function if `_type` is
// convertible to the function parameter type.
if (
ufd->typeName() &&
*TypeProvider::withLocationIfReference(typeLocation, &_type, true) !=
*TypeProvider::withLocationIfReference(
typeLocation,
ufd->typeName()->annotation().type,
true
)
)
continue;
for (auto const& pathPointer: ufd->functionsOrLibrary())
for (UsingForDirective const* ufd: usingForDirectivesForType(_type, _scope))
for (auto const& identifierPath: ufd->functionsOrLibrary())
{
solAssert(pathPointer);
Declaration const* declaration = pathPointer->annotation().referencedDeclaration;
solAssert(identifierPath);
Declaration const* declaration = identifierPath->annotation().referencedDeclaration;
solAssert(declaration);
if (ContractDefinition const* library = dynamic_cast<ContractDefinition const*>(declaration))
@ -417,10 +424,9 @@ MemberList::MemberMap Type::boundFunctions(Type const& _type, ASTNode const& _sc
else
addFunction(
dynamic_cast<FunctionDefinition const&>(*declaration),
pathPointer->path().back()
identifierPath->path().back()
);
}
}
return members;
}