New feature: OptionList.

It can be handy to have all information about options gathered in a single place
to provide an overview of all supported options. This patch allows the following:

def Options : OptionList<[
(switch_option "E", (help "Help string")),
(alias_option "quiet", "q")
...
]>;

Tool-specific option properties (like 'append_cmd') have (obviously) no meaning in
this context, so the only properties that are allowed are 'help' and 'required'.

See usage example in examples/Clang.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51754 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mikhail Glushenkov
2008-05-30 06:26:08 +00:00
parent 270cae3bf8
commit e43228958c
3 changed files with 86 additions and 17 deletions
+31 -4
View File
@@ -647,9 +647,9 @@ CollectProperties::optionPropertyHandlers_;
bool CollectProperties::staticMembersInitialized_ = false;
/// CollectToolProperties - Gather information from the parsed
/// TableGen data (basically a wrapper for the CollectProperties
/// function object).
/// CollectToolProperties - Gather information about tool properties
/// from the parsed TableGen data (basically a wrapper for the
/// CollectProperties function object).
void CollectToolProperties (RecordVector::const_iterator B,
RecordVector::const_iterator E,
ToolPropertiesList& TPList,
@@ -657,7 +657,8 @@ void CollectToolProperties (RecordVector::const_iterator B,
{
// Iterate over a properties list of every Tool definition
for (;B!=E;++B) {
RecordVector::value_type T = *B;
Record* T = *B;
// Throws an exception if the value does not exist.
ListInit* PropList = T->getValueAsListInit("properties");
IntrusiveRefCntPtr<ToolProperties>
@@ -669,6 +670,28 @@ void CollectToolProperties (RecordVector::const_iterator B,
}
}
/// CollectToolPropertiesFromOptionList - Gather information about
/// *global* option properties from the OptionList.
// TOFIX - This is kinda hacky, since it allows to use arbitrary tool
// properties in the OptionList. CollectProperties function object
// should be split into two parts that collect tool and option
// properties, respectively.
void CollectPropertiesFromOptionList (RecordVector::const_iterator B,
RecordVector::const_iterator E,
GlobalOptionDescriptions& OptDescs)
{
// Iterate over a properties list of every Tool definition
ToolProperties ToolProps("dummy");
for (;B!=E;++B) {
RecordVector::value_type T = *B;
// Throws an exception if the value does not exist.
ListInit* PropList = T->getValueAsListInit("options");
std::for_each(PropList->begin(), PropList->end(),
CollectProperties(ToolProps, OptDescs));
}
}
/// EmitCaseTest1Arg - Helper function used by
/// EmitCaseConstructHandler.
bool EmitCaseTest1Arg(const std::string& TestName,
@@ -1571,6 +1594,10 @@ void LLVMCConfigurationEmitter::run (std::ostream &O) {
GlobalOptionDescriptions opt_descs;
CollectToolProperties(Tools.begin(), Tools.end(), tool_props, opt_descs);
RecordVector OptionLists = Records.getAllDerivedDefinitions("OptionList");
CollectPropertiesFromOptionList(OptionLists.begin(), OptionLists.end(),
opt_descs);
// Emit global option registration code.
EmitOptionDescriptions(opt_descs, O);