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Improve error for invalid use of types as values (addresses #923).

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This scripting error can now generate an error message at parse-time
instead of run-time and also includes location information.
This commit is contained in:
Jon Siwek 2012-12-18 14:31:39 -06:00
parent ea6b62f586
commit 2f0c698ed5
4 changed files with 21 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
scripts/policy/protocols/http/detect-webapps.bro
View file

@ -28,7 +28,7 @@ event signature_match(state: signature_state, msg: string, data: string) &priori
if ( /^webapp-/ !in state$sig_id ) return;
local c = state$conn;
local si = Software::Info;
local si: Software::Info;
si = [$name=msg, $unparsed_version=msg, $host=c$id$resp_h, $host_p=c$id$resp_p, $software_type=WEB_APPLICATION];
si$url = build_url_http(c$http);
if ( c$id$resp_h in Software::tracked &&

6
src/Expr.cc
View file

@ -233,7 +233,11 @@ NameExpr::NameExpr(ID* arg_id, bool const_init) : Expr(EXPR_NAME)
{
id = arg_id;
in_const_init = const_init;
SetType(id->Type()->Ref());
if ( id->AsType() )
SetType(new TypeType(id->AsType()));
else
SetType(id->Type()->Ref());
EventHandler* h = event_registry->Lookup(id->Name());
if ( h )

1
testing/btest/Baseline/language.type-type-error/.stderr Normal file
View file

@ -0,0 +1 @@
error in /home/jsiwek/bro/testing/btest/.tmp/language.type-type-error/type-type-error.bro, line 13: not a record (r$a)

14
testing/btest/language/type-type-error.bro Normal file
View file

@ -0,0 +1,14 @@
# @TEST-EXEC-FAIL: bro -b %INPUT
# @TEST-EXEC: TEST_DIFF_CANONIFIER=$SCRIPTS/diff-remove-abspath btest-diff .stderr
type r: record {
a: string;
};
event bro_init()
{
# This should generate a parse error indicating that the type identifier
# is incorrectly used in an expression expecting a real value and not
# a value of type TypeType.
print r$a;
}