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GH-1080: Treat enum name re-use across different enum types as an error

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This commit is contained in:
Jon Siwek 2020-07-31 16:17:22 -07:00
parent 613b27eec7
commit 4a9567e04f
3 changed files with 44 additions and 1 deletions
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7
src/Type.cc
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@ -1270,9 +1270,14 @@ void EnumType::CheckAndAddName(const string& module_name, const char* name,
string fullname = make_full_var_name(module_name.c_str(), name);
if ( id->Name() != fullname
|| (id->HasVal() && val != id->GetVal()->AsEnum())
|| GetName() != id->GetType()->GetName()
|| (names.find(fullname) != names.end() && names[fullname] != val) )
{
reporter->Error("identifier or enumerator value in enumerated type definition already exists");
auto cl = detail::GetCurrentLocation();
reporter->PushLocation(&cl, id->GetLocationInfo());
reporter->Error("conflicting definition of enum value '%s' in type '%s'",
fullname.data(), GetName().data());
reporter->PopLocation();
SetError();
return;
}

4
testing/btest/Baseline/language.enum-name-conflict/output Normal file
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@ -0,0 +1,4 @@
error in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 10 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 6: conflicting definition of enum value 'BLUE' in type 'b'
error in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 15 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 5: conflicting definition of enum value 'RED' in type 'b'
error in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 27 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 23: conflicting definition of enum value 'Foo::TWO' in type 'Foo::bf'
error in /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 32 and /home/jon/pro/zeek/zeek/testing/btest/.tmp/language.enum-name-conflict/enum-name-conflict.zeek, line 22: conflicting definition of enum value 'Foo::ONE' in type 'Foo::bf'

34
testing/btest/language/enum-name-conflict.zeek Normal file
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@ -0,0 +1,34 @@
# @TEST-EXEC-FAIL: zeek -b %INPUT >output 2>&1
# @TEST-EXEC: TEST_DIFF_CANONIFIER="$SCRIPTS/diff-remove-abspath" btest-diff output
type a: enum {
RED,
BLUE
};
type b: enum {
BLUE,
GREEN
};
redef enum b += {
RED,
};
module Foo;
export {
type af: enum {
ONE,
TWO
};
type bf: enum {
TWO,
THREE
};
redef enum bf += {
ONE,
};
}