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Add deprecation expression to deprecated prototype/parameter messages

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This commit is contained in:
Jon Siwek 2020-07-09 21:25:35 -07:00
parent ac1ec7668d
commit 8597b998bb
7 changed files with 58 additions and 25 deletions
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12
src/Attr.cc
View file

@ -40,6 +40,18 @@ Attr::Attr(AttrTag t)
void Attr::SetAttrExpr(ExprPtr e)
{ expr = std::move(e); }
std::string Attr::DeprecationMessage() const
{
if ( tag != ATTR_DEPRECATED )
return "";
if ( ! expr )
return "";
auto ce = static_cast<zeek::detail::ConstExpr*>(expr.get());
return ce->Value()->AsStringVal()->CheckString();
}
void Attr::Describe(ODesc* d) const
{
AddTag(d);

7
src/Attr.h
View file

@ -3,6 +3,7 @@
#pragma once
#include <vector>
#include <string>
#include "Obj.h"
#include "BroList.h"
@ -73,6 +74,12 @@ public:
void Describe(ODesc* d) const override;
void DescribeReST(ODesc* d, bool shorten = false) const;
/**
* Returns the deprecation string associated with a &deprecated attribute
* or an empty string if this is not such an attribute.
*/
std::string DeprecationMessage() const;
bool operator==(const Attr& other) const
{
if ( tag != other.tag )

9
src/ID.cc
View file

@ -294,14 +294,7 @@ std::string ID::GetDeprecationWarning() const
const auto& depr_attr = GetAttr(ATTR_DEPRECATED);
if ( depr_attr )
{
auto expr = static_cast<zeek::detail::ConstExpr*>(depr_attr->GetExpr().get());
if ( expr )
{
StringVal* text = expr->Value()->AsStringVal();
result = text->CheckString();
}
}
result = depr_attr->DeprecationMessage();
if ( result.empty() )
return fmt("deprecated (%s)", Name());

11
src/Type.cc
View file

@ -563,7 +563,7 @@ FuncType::FuncType(RecordTypePtr arg_args,
offsets[i] = i;
}
prototypes.emplace_back(Prototype{false, args, std::move(offsets)});
prototypes.emplace_back(Prototype{false, "", args, std::move(offsets)});
}
TypePtr FuncType::ShallowClone()
@ -1120,14 +1120,7 @@ string RecordType::GetFieldDeprecationWarning(int field, bool has_check) const
{
string result;
if ( const auto& deprecation = decl->GetAttr(zeek::detail::ATTR_DEPRECATED) )
{
auto expr = static_cast<zeek::detail::ConstExpr*>(deprecation->GetExpr().get());
if ( expr )
{
StringVal* text = expr->Value()->AsStringVal();
result = text->CheckString();
}
}
result = deprecation->DeprecationMessage();
if ( result.empty() )
return fmt("deprecated (%s%s$%s)", GetName().c_str(), has_check ? "?" : "",

1
src/Type.h
View file

@ -427,6 +427,7 @@ public:
*/
struct Prototype {
bool deprecated;
std::string deprecation_msg;
RecordTypePtr args;
std::map<int, int> offsets;
};

33
src/Var.cc
View file

@ -100,13 +100,23 @@ static bool add_prototype(const zeek::detail::IDPtr& id, zeek::Type* t,
}
auto deprecated = false;
std::string depr_msg;
if ( attrs )
for ( const auto& a : *attrs )
if ( a->Tag() == zeek::detail::ATTR_DEPRECATED )
{
deprecated = true;
depr_msg = a->DeprecationMessage();
break;
}
zeek::FuncType::Prototype p;
p.deprecated = deprecated;
p.deprecation_msg = std::move(depr_msg);
p.args = alt_args;
p.offsets = std::move(offsets);
zeek::FuncType::Prototype p{deprecated, alt_args, std::move(offsets)};
canon_ft->AddPrototype(std::move(p));
return true;
}
@ -454,9 +464,19 @@ static std::optional<zeek::FuncType::Prototype> func_type_check(const zeek::Func
if ( rval )
for ( auto i = 0; i < rval->args->NumFields(); ++i )
if ( rval->args->FieldDecl(i)->GetAttr(zeek::detail::ATTR_DEPRECATED) )
if ( auto ad = rval->args->FieldDecl(i)->GetAttr(zeek::detail::ATTR_DEPRECATED) )
{
auto msg = ad->DeprecationMessage();
if ( msg.empty() )
impl->Warn(fmt("use of deprecated parameter '%s'",
rval->args->FieldName(i)), decl, true);
rval->args->FieldName(i)),
decl, true);
else
impl->Warn(fmt("use of deprecated parameter '%s': %s",
rval->args->FieldName(i), msg.data()),
decl, true);
}
return rval;
}
@ -531,8 +551,15 @@ void begin_func(zeek::detail::IDPtr id, const char* module_name,
}
if ( prototype->deprecated )
{
if ( prototype->deprecation_msg.empty() )
t->Warn(fmt("use of deprecated '%s' prototype", id->Name()),
prototype->args.get(), true);
else
t->Warn(fmt("use of deprecated '%s' prototype: %s",
id->Name(), prototype->deprecation_msg.data()),
prototype->args.get(), true);
}
}
else
{

4
testing/btest/Baseline/language.alternate-prototypes-deprecated-args/out
View file

@ -1,5 +1,5 @@
warning in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 9 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 5: use of deprecated parameter 'b' (event(a:string; b:string; c:string;))
warning in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 19 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 7: use of deprecated 'myev' prototype (event(a:string; b:string;))
warning in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 9 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 5: use of deprecated parameter 'b': Don't use 'b' (event(a:string; b:string; c:string;))
warning in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 19 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.alternate-prototypes-deprecated-args/alternate-prototypes-deprecated-args.zeek, line 7: use of deprecated 'myev' prototype: Don't use this prototype (event(a:string; b:string;))
myev (canon), one, two, three
myev (new), one, three
myev (old), one, two