| //===- LLVMCConfigurationEmitter.cpp - Generate LLVMC config ----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open |
| // Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This tablegen backend is responsible for emitting LLVMC configuration code. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "LLVMCConfigurationEmitter.h" |
| #include "Record.h" |
| |
| #include "llvm/ADT/IntrusiveRefCntPtr.h" |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/ADT/StringSet.h" |
| |
| #include <algorithm> |
| #include <cassert> |
| #include <functional> |
| #include <stdexcept> |
| #include <string> |
| #include <typeinfo> |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| //===----------------------------------------------------------------------===// |
| /// Typedefs |
| |
| typedef std::vector<Record*> RecordVector; |
| typedef std::vector<std::string> StrVector; |
| |
| //===----------------------------------------------------------------------===// |
| /// Constants |
| |
| // Indentation. |
| const unsigned TabWidth = 4; |
| const unsigned Indent1 = TabWidth*1; |
| const unsigned Indent2 = TabWidth*2; |
| const unsigned Indent3 = TabWidth*3; |
| const unsigned Indent4 = TabWidth*4; |
| |
| // Default help string. |
| const char * const DefaultHelpString = "NO HELP MESSAGE PROVIDED"; |
| |
| // Name for the "sink" option. |
| const char * const SinkOptionName = "AutoGeneratedSinkOption"; |
| |
| //===----------------------------------------------------------------------===// |
| /// Helper functions |
| |
| /// Id - An 'identity' function object. |
| struct Id { |
| template<typename T0> |
| void operator()(const T0&) const { |
| } |
| template<typename T0, typename T1> |
| void operator()(const T0&, const T1&) const { |
| } |
| template<typename T0, typename T1, typename T2> |
| void operator()(const T0&, const T1&, const T2&) const { |
| } |
| }; |
| |
| int InitPtrToInt(const Init* ptr) { |
| const IntInit& val = dynamic_cast<const IntInit&>(*ptr); |
| return val.getValue(); |
| } |
| |
| const std::string& InitPtrToString(const Init* ptr) { |
| const StringInit& val = dynamic_cast<const StringInit&>(*ptr); |
| return val.getValue(); |
| } |
| |
| const ListInit& InitPtrToList(const Init* ptr) { |
| const ListInit& val = dynamic_cast<const ListInit&>(*ptr); |
| return val; |
| } |
| |
| const DagInit& InitPtrToDag(const Init* ptr) { |
| const DagInit& val = dynamic_cast<const DagInit&>(*ptr); |
| return val; |
| } |
| |
| const std::string GetOperatorName(const DagInit& D) { |
| return D.getOperator()->getAsString(); |
| } |
| |
| /// CheckBooleanConstant - Check that the provided value is a boolean constant. |
| void CheckBooleanConstant(const Init* I) { |
| const DefInit& val = dynamic_cast<const DefInit&>(*I); |
| const std::string& str = val.getAsString(); |
| |
| if (str != "true" && str != "false") { |
| throw "Incorrect boolean value: '" + str + |
| "': must be either 'true' or 'false'"; |
| } |
| } |
| |
| // CheckNumberOfArguments - Ensure that the number of args in d is |
| // greater than or equal to min_arguments, otherwise throw an exception. |
| void CheckNumberOfArguments (const DagInit& d, unsigned minArgs) { |
| if (d.getNumArgs() < minArgs) |
| throw GetOperatorName(d) + ": too few arguments!"; |
| } |
| |
| // IsDagEmpty - is this DAG marked with an empty marker? |
| bool IsDagEmpty (const DagInit& d) { |
| return GetOperatorName(d) == "empty_dag_marker"; |
| } |
| |
| // EscapeVariableName - Escape commas and other symbols not allowed |
| // in the C++ variable names. Makes it possible to use options named |
| // like "Wa," (useful for prefix options). |
| std::string EscapeVariableName (const std::string& Var) { |
| std::string ret; |
| for (unsigned i = 0; i != Var.size(); ++i) { |
| char cur_char = Var[i]; |
| if (cur_char == ',') { |
| ret += "_comma_"; |
| } |
| else if (cur_char == '+') { |
| ret += "_plus_"; |
| } |
| else if (cur_char == '-') { |
| ret += "_dash_"; |
| } |
| else { |
| ret.push_back(cur_char); |
| } |
| } |
| return ret; |
| } |
| |
| /// EscapeQuotes - Replace '"' with '\"'. |
| std::string EscapeQuotes (const std::string& Var) { |
| std::string ret; |
| for (unsigned i = 0; i != Var.size(); ++i) { |
| char cur_char = Var[i]; |
| if (cur_char == '"') { |
| ret += "\\\""; |
| } |
| else { |
| ret.push_back(cur_char); |
| } |
| } |
| return ret; |
| } |
| |
| /// OneOf - Does the input string contain this character? |
| bool OneOf(const char* lst, char c) { |
| while (*lst) { |
| if (*lst++ == c) |
| return true; |
| } |
| return false; |
| } |
| |
| template <class I, class S> |
| void CheckedIncrement(I& P, I E, S ErrorString) { |
| ++P; |
| if (P == E) |
| throw ErrorString; |
| } |
| |
| // apply is needed because C++'s syntax doesn't let us construct a function |
| // object and call it in the same statement. |
| template<typename F, typename T0> |
| void apply(F Fun, T0& Arg0) { |
| return Fun(Arg0); |
| } |
| |
| template<typename F, typename T0, typename T1> |
| void apply(F Fun, T0& Arg0, T1& Arg1) { |
| return Fun(Arg0, Arg1); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| /// Back-end specific code |
| |
| |
| /// OptionType - One of six different option types. See the |
| /// documentation for detailed description of differences. |
| namespace OptionType { |
| |
| enum OptionType { Alias, Switch, SwitchList, |
| Parameter, ParameterList, Prefix, PrefixList }; |
| |
| bool IsAlias(OptionType t) { |
| return (t == Alias); |
| } |
| |
| bool IsList (OptionType t) { |
| return (t == SwitchList || t == ParameterList || t == PrefixList); |
| } |
| |
| bool IsSwitch (OptionType t) { |
| return (t == Switch); |
| } |
| |
| bool IsSwitchList (OptionType t) { |
| return (t == SwitchList); |
| } |
| |
| bool IsParameter (OptionType t) { |
| return (t == Parameter || t == Prefix); |
| } |
| |
| } |
| |
| OptionType::OptionType stringToOptionType(const std::string& T) { |
| if (T == "alias_option") |
| return OptionType::Alias; |
| else if (T == "switch_option") |
| return OptionType::Switch; |
| else if (T == "switch_list_option") |
| return OptionType::SwitchList; |
| else if (T == "parameter_option") |
| return OptionType::Parameter; |
| else if (T == "parameter_list_option") |
| return OptionType::ParameterList; |
| else if (T == "prefix_option") |
| return OptionType::Prefix; |
| else if (T == "prefix_list_option") |
| return OptionType::PrefixList; |
| else |
| throw "Unknown option type: " + T + '!'; |
| } |
| |
| namespace OptionDescriptionFlags { |
| enum OptionDescriptionFlags { Required = 0x1, Hidden = 0x2, |
| ReallyHidden = 0x4, OneOrMore = 0x8, |
| Optional = 0x10, CommaSeparated = 0x20, |
| ForwardNotSplit = 0x40, ZeroOrMore = 0x80 }; |
| } |
| |
| /// OptionDescription - Represents data contained in a single |
| /// OptionList entry. |
| struct OptionDescription { |
| OptionType::OptionType Type; |
| std::string Name; |
| unsigned Flags; |
| std::string Help; |
| unsigned MultiVal; |
| Init* InitVal; |
| |
| OptionDescription(OptionType::OptionType t = OptionType::Switch, |
| const std::string& n = "", |
| const std::string& h = DefaultHelpString) |
| : Type(t), Name(n), Flags(0x0), Help(h), MultiVal(1), InitVal(0) |
| {} |
| |
| /// GenTypeDeclaration - Returns the C++ variable type of this |
| /// option. |
| const char* GenTypeDeclaration() const; |
| |
| /// GenVariableName - Returns the variable name used in the |
| /// generated C++ code. |
| std::string GenVariableName() const; |
| |
| /// Merge - Merge two option descriptions. |
| void Merge (const OptionDescription& other); |
| |
| /// CheckConsistency - Check that the flags are consistent. |
| void CheckConsistency() const; |
| |
| // Misc convenient getters/setters. |
| |
| bool isAlias() const; |
| |
| bool isMultiVal() const; |
| |
| bool isCommaSeparated() const; |
| void setCommaSeparated(); |
| |
| bool isForwardNotSplit() const; |
| void setForwardNotSplit(); |
| |
| bool isRequired() const; |
| void setRequired(); |
| |
| bool isOneOrMore() const; |
| void setOneOrMore(); |
| |
| bool isZeroOrMore() const; |
| void setZeroOrMore(); |
| |
| bool isOptional() const; |
| void setOptional(); |
| |
| bool isHidden() const; |
| void setHidden(); |
| |
| bool isReallyHidden() const; |
| void setReallyHidden(); |
| |
| bool isSwitch() const |
| { return OptionType::IsSwitch(this->Type); } |
| |
| bool isSwitchList() const |
| { return OptionType::IsSwitchList(this->Type); } |
| |
| bool isParameter() const |
| { return OptionType::IsParameter(this->Type); } |
| |
| bool isList() const |
| { return OptionType::IsList(this->Type); } |
| |
| bool isParameterList() const |
| { return (OptionType::IsList(this->Type) |
| && !OptionType::IsSwitchList(this->Type)); } |
| |
| }; |
| |
| void OptionDescription::CheckConsistency() const { |
| unsigned i = 0; |
| |
| i += this->isRequired(); |
| i += this->isOptional(); |
| i += this->isOneOrMore(); |
| i += this->isZeroOrMore(); |
| |
| if (i > 1) { |
| throw "Only one of (required), (optional), (one_or_more) or " |
| "(zero_or_more) properties is allowed!"; |
| } |
| } |
| |
| void OptionDescription::Merge (const OptionDescription& other) |
| { |
| if (other.Type != Type) |
| throw "Conflicting definitions for the option " + Name + "!"; |
| |
| if (Help == other.Help || Help == DefaultHelpString) |
| Help = other.Help; |
| else if (other.Help != DefaultHelpString) { |
| llvm::errs() << "Warning: several different help strings" |
| " defined for option " + Name + "\n"; |
| } |
| |
| Flags |= other.Flags; |
| } |
| |
| bool OptionDescription::isAlias() const { |
| return OptionType::IsAlias(this->Type); |
| } |
| |
| bool OptionDescription::isMultiVal() const { |
| return MultiVal > 1; |
| } |
| |
| bool OptionDescription::isCommaSeparated() const { |
| return Flags & OptionDescriptionFlags::CommaSeparated; |
| } |
| void OptionDescription::setCommaSeparated() { |
| Flags |= OptionDescriptionFlags::CommaSeparated; |
| } |
| |
| bool OptionDescription::isForwardNotSplit() const { |
| return Flags & OptionDescriptionFlags::ForwardNotSplit; |
| } |
| void OptionDescription::setForwardNotSplit() { |
| Flags |= OptionDescriptionFlags::ForwardNotSplit; |
| } |
| |
| bool OptionDescription::isRequired() const { |
| return Flags & OptionDescriptionFlags::Required; |
| } |
| void OptionDescription::setRequired() { |
| Flags |= OptionDescriptionFlags::Required; |
| } |
| |
| bool OptionDescription::isOneOrMore() const { |
| return Flags & OptionDescriptionFlags::OneOrMore; |
| } |
| void OptionDescription::setOneOrMore() { |
| Flags |= OptionDescriptionFlags::OneOrMore; |
| } |
| |
| bool OptionDescription::isZeroOrMore() const { |
| return Flags & OptionDescriptionFlags::ZeroOrMore; |
| } |
| void OptionDescription::setZeroOrMore() { |
| Flags |= OptionDescriptionFlags::ZeroOrMore; |
| } |
| |
| bool OptionDescription::isOptional() const { |
| return Flags & OptionDescriptionFlags::Optional; |
| } |
| void OptionDescription::setOptional() { |
| Flags |= OptionDescriptionFlags::Optional; |
| } |
| |
| bool OptionDescription::isHidden() const { |
| return Flags & OptionDescriptionFlags::Hidden; |
| } |
| void OptionDescription::setHidden() { |
| Flags |= OptionDescriptionFlags::Hidden; |
| } |
| |
| bool OptionDescription::isReallyHidden() const { |
| return Flags & OptionDescriptionFlags::ReallyHidden; |
| } |
| void OptionDescription::setReallyHidden() { |
| Flags |= OptionDescriptionFlags::ReallyHidden; |
| } |
| |
| const char* OptionDescription::GenTypeDeclaration() const { |
| switch (Type) { |
| case OptionType::Alias: |
| return "cl::alias"; |
| case OptionType::PrefixList: |
| case OptionType::ParameterList: |
| return "cl::list<std::string>"; |
| case OptionType::Switch: |
| return "cl::opt<bool>"; |
| case OptionType::SwitchList: |
| return "cl::list<bool>"; |
| case OptionType::Parameter: |
| case OptionType::Prefix: |
| default: |
| return "cl::opt<std::string>"; |
| } |
| } |
| |
| std::string OptionDescription::GenVariableName() const { |
| const std::string& EscapedName = EscapeVariableName(Name); |
| switch (Type) { |
| case OptionType::Alias: |
| return "AutoGeneratedAlias_" + EscapedName; |
| case OptionType::PrefixList: |
| case OptionType::ParameterList: |
| return "AutoGeneratedList_" + EscapedName; |
| case OptionType::Switch: |
| return "AutoGeneratedSwitch_" + EscapedName; |
| case OptionType::SwitchList: |
| return "AutoGeneratedSwitchList_" + EscapedName; |
| case OptionType::Prefix: |
| case OptionType::Parameter: |
| default: |
| return "AutoGeneratedParameter_" + EscapedName; |
| } |
| } |
| |
| /// OptionDescriptions - An OptionDescription array plus some helper |
| /// functions. |
| class OptionDescriptions { |
| typedef StringMap<OptionDescription> container_type; |
| |
| /// Descriptions - A list of OptionDescriptions. |
| container_type Descriptions; |
| |
| public: |
| /// FindOption - exception-throwing wrapper for find(). |
| const OptionDescription& FindOption(const std::string& OptName) const; |
| |
| // Wrappers for FindOption that throw an exception in case the option has a |
| // wrong type. |
| const OptionDescription& FindSwitch(const std::string& OptName) const; |
| const OptionDescription& FindParameter(const std::string& OptName) const; |
| const OptionDescription& FindList(const std::string& OptName) const; |
| const OptionDescription& FindParameterList(const std::string& OptName) const; |
| const OptionDescription& |
| FindListOrParameter(const std::string& OptName) const; |
| const OptionDescription& |
| FindParameterListOrParameter(const std::string& OptName) const; |
| |
| /// insertDescription - Insert new OptionDescription into |
| /// OptionDescriptions list |
| void InsertDescription (const OptionDescription& o); |
| |
| // Support for STL-style iteration |
| typedef container_type::const_iterator const_iterator; |
| const_iterator begin() const { return Descriptions.begin(); } |
| const_iterator end() const { return Descriptions.end(); } |
| }; |
| |
| const OptionDescription& |
| OptionDescriptions::FindOption(const std::string& OptName) const { |
| const_iterator I = Descriptions.find(OptName); |
| if (I != Descriptions.end()) |
| return I->second; |
| else |
| throw OptName + ": no such option!"; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindSwitch(const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if (!OptDesc.isSwitch()) |
| throw OptName + ": incorrect option type - should be a switch!"; |
| return OptDesc; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindList(const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if (!OptDesc.isList()) |
| throw OptName + ": incorrect option type - should be a list!"; |
| return OptDesc; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindParameterList(const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if (!OptDesc.isList() || OptDesc.isSwitchList()) |
| throw OptName + ": incorrect option type - should be a parameter list!"; |
| return OptDesc; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindParameter(const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if (!OptDesc.isParameter()) |
| throw OptName + ": incorrect option type - should be a parameter!"; |
| return OptDesc; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindListOrParameter(const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if (!OptDesc.isList() && !OptDesc.isParameter()) |
| throw OptName |
| + ": incorrect option type - should be a list or parameter!"; |
| return OptDesc; |
| } |
| |
| const OptionDescription& |
| OptionDescriptions::FindParameterListOrParameter |
| (const std::string& OptName) const { |
| const OptionDescription& OptDesc = this->FindOption(OptName); |
| if ((!OptDesc.isList() && !OptDesc.isParameter()) || OptDesc.isSwitchList()) |
| throw OptName |
| + ": incorrect option type - should be a parameter list or parameter!"; |
| return OptDesc; |
| } |
| |
| void OptionDescriptions::InsertDescription (const OptionDescription& o) { |
| container_type::iterator I = Descriptions.find(o.Name); |
| if (I != Descriptions.end()) { |
| OptionDescription& D = I->second; |
| D.Merge(o); |
| } |
| else { |
| Descriptions[o.Name] = o; |
| } |
| } |
| |
| /// HandlerTable - A base class for function objects implemented as |
| /// 'tables of handlers'. |
| template <typename Handler> |
| class HandlerTable { |
| protected: |
| // Implementation details. |
| |
| /// HandlerMap - A map from property names to property handlers |
| typedef StringMap<Handler> HandlerMap; |
| |
| static HandlerMap Handlers_; |
| static bool staticMembersInitialized_; |
| |
| public: |
| |
| Handler GetHandler (const std::string& HandlerName) const { |
| typename HandlerMap::iterator method = Handlers_.find(HandlerName); |
| |
| if (method != Handlers_.end()) { |
| Handler h = method->second; |
| return h; |
| } |
| else { |
| throw "No handler found for property " + HandlerName + "!"; |
| } |
| } |
| |
| void AddHandler(const char* Property, Handler H) { |
| Handlers_[Property] = H; |
| } |
| |
| }; |
| |
| template <class Handler, class FunctionObject> |
| Handler GetHandler(FunctionObject* Obj, const DagInit& Dag) { |
| const std::string& HandlerName = GetOperatorName(Dag); |
| return Obj->GetHandler(HandlerName); |
| } |
| |
| template <class FunctionObject> |
| void InvokeDagInitHandler(FunctionObject* Obj, Init* I) { |
| typedef void (FunctionObject::*Handler) (const DagInit&); |
| |
| const DagInit& Dag = InitPtrToDag(I); |
| Handler h = GetHandler<Handler>(Obj, Dag); |
| |
| ((Obj)->*(h))(Dag); |
| } |
| |
| template <class FunctionObject> |
| void InvokeDagInitHandler(const FunctionObject* const Obj, |
| const Init* I, unsigned IndentLevel, raw_ostream& O) |
| { |
| typedef void (FunctionObject::*Handler) |
| (const DagInit&, unsigned IndentLevel, raw_ostream& O) const; |
| |
| const DagInit& Dag = InitPtrToDag(I); |
| Handler h = GetHandler<Handler>(Obj, Dag); |
| |
| ((Obj)->*(h))(Dag, IndentLevel, O); |
| } |
| |
| |
| template <typename H> |
| typename HandlerTable<H>::HandlerMap HandlerTable<H>::Handlers_; |
| |
| template <typename H> |
| bool HandlerTable<H>::staticMembersInitialized_ = false; |
| |
| |
| /// CollectOptionProperties - Function object for iterating over an |
| /// option property list. |
| class CollectOptionProperties; |
| typedef void (CollectOptionProperties::* CollectOptionPropertiesHandler) |
| (const DagInit&); |
| |
| class CollectOptionProperties |
| : public HandlerTable<CollectOptionPropertiesHandler> |
| { |
| private: |
| |
| /// optDescs_ - OptionDescriptions table. This is where the |
| /// information is stored. |
| OptionDescription& optDesc_; |
| |
| public: |
| |
| explicit CollectOptionProperties(OptionDescription& OD) |
| : optDesc_(OD) |
| { |
| if (!staticMembersInitialized_) { |
| AddHandler("help", &CollectOptionProperties::onHelp); |
| AddHandler("hidden", &CollectOptionProperties::onHidden); |
| AddHandler("init", &CollectOptionProperties::onInit); |
| AddHandler("multi_val", &CollectOptionProperties::onMultiVal); |
| AddHandler("one_or_more", &CollectOptionProperties::onOneOrMore); |
| AddHandler("zero_or_more", &CollectOptionProperties::onZeroOrMore); |
| AddHandler("really_hidden", &CollectOptionProperties::onReallyHidden); |
| AddHandler("required", &CollectOptionProperties::onRequired); |
| AddHandler("optional", &CollectOptionProperties::onOptional); |
| AddHandler("comma_separated", &CollectOptionProperties::onCommaSeparated); |
| AddHandler("forward_not_split", |
| &CollectOptionProperties::onForwardNotSplit); |
| |
| staticMembersInitialized_ = true; |
| } |
| } |
| |
| /// operator() - Just forwards to the corresponding property |
| /// handler. |
| void operator() (Init* I) { |
| InvokeDagInitHandler(this, I); |
| } |
| |
| private: |
| |
| /// Option property handlers -- |
| /// Methods that handle option properties such as (help) or (hidden). |
| |
| void onHelp (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| optDesc_.Help = EscapeQuotes(InitPtrToString(d.getArg(0))); |
| } |
| |
| void onHidden (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| optDesc_.setHidden(); |
| } |
| |
| void onReallyHidden (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| optDesc_.setReallyHidden(); |
| } |
| |
| void onCommaSeparated (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| if (!optDesc_.isParameterList()) |
| throw "'comma_separated' is valid only on parameter list options!"; |
| optDesc_.setCommaSeparated(); |
| } |
| |
| void onForwardNotSplit (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| if (!optDesc_.isParameter()) |
| throw "'forward_not_split' is valid only for parameter options!"; |
| optDesc_.setForwardNotSplit(); |
| } |
| |
| void onRequired (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| |
| optDesc_.setRequired(); |
| optDesc_.CheckConsistency(); |
| } |
| |
| void onInit (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| Init* i = d.getArg(0); |
| const std::string& str = i->getAsString(); |
| |
| bool correct = optDesc_.isParameter() && dynamic_cast<StringInit*>(i); |
| correct |= (optDesc_.isSwitch() && (str == "true" || str == "false")); |
| |
| if (!correct) |
| throw "Incorrect usage of the 'init' option property!"; |
| |
| optDesc_.InitVal = i; |
| } |
| |
| void onOneOrMore (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| |
| optDesc_.setOneOrMore(); |
| optDesc_.CheckConsistency(); |
| } |
| |
| void onZeroOrMore (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| |
| if (optDesc_.isList()) |
| llvm::errs() << "Warning: specifying the 'zero_or_more' property " |
| "on a list option has no effect.\n"; |
| |
| optDesc_.setZeroOrMore(); |
| optDesc_.CheckConsistency(); |
| } |
| |
| void onOptional (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| |
| if (!optDesc_.isList()) |
| llvm::errs() << "Warning: specifying the 'optional' property" |
| "on a non-list option has no effect.\n"; |
| |
| optDesc_.setOptional(); |
| optDesc_.CheckConsistency(); |
| } |
| |
| void onMultiVal (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| int val = InitPtrToInt(d.getArg(0)); |
| if (val < 2) |
| throw "Error in the 'multi_val' property: " |
| "the value must be greater than 1!"; |
| if (!optDesc_.isParameterList()) |
| throw "The multi_val property is valid only on list options!"; |
| optDesc_.MultiVal = val; |
| } |
| |
| }; |
| |
| /// AddOption - A function object that is applied to every option |
| /// description. Used by CollectOptionDescriptions. |
| class AddOption { |
| private: |
| OptionDescriptions& OptDescs_; |
| |
| public: |
| explicit AddOption(OptionDescriptions& OD) : OptDescs_(OD) |
| {} |
| |
| void operator()(const Init* i) { |
| const DagInit& d = InitPtrToDag(i); |
| CheckNumberOfArguments(d, 1); |
| |
| const OptionType::OptionType Type = |
| stringToOptionType(GetOperatorName(d)); |
| const std::string& Name = InitPtrToString(d.getArg(0)); |
| |
| OptionDescription OD(Type, Name); |
| |
| |
| CheckNumberOfArguments(d, 2); |
| |
| if (OD.isAlias()) { |
| // Aliases store the aliased option name in the 'Help' field. |
| OD.Help = InitPtrToString(d.getArg(1)); |
| } |
| else { |
| processOptionProperties(d, OD); |
| } |
| |
| OptDescs_.InsertDescription(OD); |
| } |
| |
| private: |
| /// processOptionProperties - Go through the list of option |
| /// properties and call a corresponding handler for each. |
| static void processOptionProperties (const DagInit& d, OptionDescription& o) { |
| CheckNumberOfArguments(d, 2); |
| DagInit::const_arg_iterator B = d.arg_begin(); |
| // Skip the first argument: it's always the option name. |
| ++B; |
| std::for_each(B, d.arg_end(), CollectOptionProperties(o)); |
| } |
| |
| }; |
| |
| /// CollectOptionDescriptions - Collects option properties from all |
| /// OptionLists. |
| void CollectOptionDescriptions (RecordVector::const_iterator B, |
| RecordVector::const_iterator E, |
| OptionDescriptions& OptDescs) |
| { |
| // For every OptionList: |
| for (; B!=E; ++B) { |
| RecordVector::value_type T = *B; |
| // Throws an exception if the value does not exist. |
| ListInit* PropList = T->getValueAsListInit("options"); |
| |
| // For every option description in this list: |
| // collect the information and |
| std::for_each(PropList->begin(), PropList->end(), AddOption(OptDescs)); |
| } |
| } |
| |
| // Tool information record |
| |
| namespace ToolFlags { |
| enum ToolFlags { Join = 0x1, Sink = 0x2 }; |
| } |
| |
| struct ToolDescription : public RefCountedBase<ToolDescription> { |
| std::string Name; |
| Init* CmdLine; |
| Init* Actions; |
| StrVector InLanguage; |
| std::string InFileOption; |
| std::string OutFileOption; |
| std::string OutLanguage; |
| std::string OutputSuffix; |
| unsigned Flags; |
| const Init* OnEmpty; |
| |
| // Various boolean properties |
| void setSink() { Flags |= ToolFlags::Sink; } |
| bool isSink() const { return Flags & ToolFlags::Sink; } |
| void setJoin() { Flags |= ToolFlags::Join; } |
| bool isJoin() const { return Flags & ToolFlags::Join; } |
| |
| // Default ctor here is needed because StringMap can only store |
| // DefaultConstructible objects |
| ToolDescription () |
| : CmdLine(0), Actions(0), OutFileOption("-o"), |
| Flags(0), OnEmpty(0) |
| {} |
| ToolDescription (const std::string& n) |
| : Name(n), CmdLine(0), Actions(0), OutFileOption("-o"), |
| Flags(0), OnEmpty(0) |
| {} |
| }; |
| |
| /// ToolDescriptions - A list of Tool information records. |
| typedef std::vector<IntrusiveRefCntPtr<ToolDescription> > ToolDescriptions; |
| |
| |
| /// CollectToolProperties - Function object for iterating over a list of |
| /// tool property records. |
| |
| class CollectToolProperties; |
| typedef void (CollectToolProperties::* CollectToolPropertiesHandler) |
| (const DagInit&); |
| |
| class CollectToolProperties : public HandlerTable<CollectToolPropertiesHandler> |
| { |
| private: |
| |
| /// toolDesc_ - Properties of the current Tool. This is where the |
| /// information is stored. |
| ToolDescription& toolDesc_; |
| |
| public: |
| |
| explicit CollectToolProperties (ToolDescription& d) |
| : toolDesc_(d) |
| { |
| if (!staticMembersInitialized_) { |
| |
| AddHandler("actions", &CollectToolProperties::onActions); |
| AddHandler("command", &CollectToolProperties::onCommand); |
| AddHandler("in_language", &CollectToolProperties::onInLanguage); |
| AddHandler("join", &CollectToolProperties::onJoin); |
| AddHandler("out_language", &CollectToolProperties::onOutLanguage); |
| |
| AddHandler("out_file_option", &CollectToolProperties::onOutFileOption); |
| AddHandler("in_file_option", &CollectToolProperties::onInFileOption); |
| |
| AddHandler("output_suffix", &CollectToolProperties::onOutputSuffix); |
| AddHandler("sink", &CollectToolProperties::onSink); |
| AddHandler("works_on_empty", &CollectToolProperties::onWorksOnEmpty); |
| |
| staticMembersInitialized_ = true; |
| } |
| } |
| |
| void operator() (Init* I) { |
| InvokeDagInitHandler(this, I); |
| } |
| |
| private: |
| |
| /// Property handlers -- |
| /// Functions that extract information about tool properties from |
| /// DAG representation. |
| |
| void onActions (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| Init* Case = d.getArg(0); |
| if (typeid(*Case) != typeid(DagInit) || |
| GetOperatorName(static_cast<DagInit&>(*Case)) != "case") |
| throw "The argument to (actions) should be a 'case' construct!"; |
| toolDesc_.Actions = Case; |
| } |
| |
| void onCommand (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| toolDesc_.CmdLine = d.getArg(0); |
| } |
| |
| void onInLanguage (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| Init* arg = d.getArg(0); |
| |
| // Find out the argument's type. |
| if (typeid(*arg) == typeid(StringInit)) { |
| // It's a string. |
| toolDesc_.InLanguage.push_back(InitPtrToString(arg)); |
| } |
| else { |
| // It's a list. |
| const ListInit& lst = InitPtrToList(arg); |
| StrVector& out = toolDesc_.InLanguage; |
| |
| // Copy strings to the output vector. |
| for (ListInit::const_iterator B = lst.begin(), E = lst.end(); |
| B != E; ++B) { |
| out.push_back(InitPtrToString(*B)); |
| } |
| |
| // Remove duplicates. |
| std::sort(out.begin(), out.end()); |
| StrVector::iterator newE = std::unique(out.begin(), out.end()); |
| out.erase(newE, out.end()); |
| } |
| } |
| |
| void onJoin (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| toolDesc_.setJoin(); |
| } |
| |
| void onOutLanguage (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| toolDesc_.OutLanguage = InitPtrToString(d.getArg(0)); |
| } |
| |
| void onOutFileOption (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| toolDesc_.OutFileOption = InitPtrToString(d.getArg(0)); |
| } |
| |
| void onInFileOption (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| toolDesc_.InFileOption = InitPtrToString(d.getArg(0)); |
| } |
| |
| void onOutputSuffix (const DagInit& d) { |
| CheckNumberOfArguments(d, 1); |
| toolDesc_.OutputSuffix = InitPtrToString(d.getArg(0)); |
| } |
| |
| void onSink (const DagInit& d) { |
| CheckNumberOfArguments(d, 0); |
| toolDesc_.setSink(); |
| } |
| |
| void onWorksOnEmpty (const DagInit& d) { |
| toolDesc_.OnEmpty = d.getArg(0); |
| } |
| |
| }; |
| |
| /// CollectToolDescriptions - Gather information about tool properties |
| /// from the parsed TableGen data (basically a wrapper for the |
| /// CollectToolProperties function object). |
| void CollectToolDescriptions (RecordVector::const_iterator B, |
| RecordVector::const_iterator E, |
| ToolDescriptions& ToolDescs) |
| { |
| // Iterate over a properties list of every Tool definition |
| for (;B!=E;++B) { |
| const Record* T = *B; |
| // Throws an exception if the value does not exist. |
| ListInit* PropList = T->getValueAsListInit("properties"); |
| |
| IntrusiveRefCntPtr<ToolDescription> |
| ToolDesc(new ToolDescription(T->getName())); |
| |
| std::for_each(PropList->begin(), PropList->end(), |
| CollectToolProperties(*ToolDesc)); |
| ToolDescs.push_back(ToolDesc); |
| } |
| } |
| |
| /// FillInEdgeVector - Merge all compilation graph definitions into |
| /// one single edge list. |
| void FillInEdgeVector(RecordVector::const_iterator B, |
| RecordVector::const_iterator E, RecordVector& Out) { |
| for (; B != E; ++B) { |
| const ListInit* edges = (*B)->getValueAsListInit("edges"); |
| |
| for (unsigned i = 0; i < edges->size(); ++i) |
| Out.push_back(edges->getElementAsRecord(i)); |
| } |
| } |
| |
| /// NotInGraph - Helper function object for FilterNotInGraph. |
| struct NotInGraph { |
| private: |
| const llvm::StringSet<>& ToolsInGraph_; |
| |
| public: |
| NotInGraph(const llvm::StringSet<>& ToolsInGraph) |
| : ToolsInGraph_(ToolsInGraph) |
| {} |
| |
| bool operator()(const IntrusiveRefCntPtr<ToolDescription>& x) { |
| return (ToolsInGraph_.count(x->Name) == 0); |
| } |
| }; |
| |
| /// FilterNotInGraph - Filter out from ToolDescs all Tools not |
| /// mentioned in the compilation graph definition. |
| void FilterNotInGraph (const RecordVector& EdgeVector, |
| ToolDescriptions& ToolDescs) { |
| |
| // List all tools mentioned in the graph. |
| llvm::StringSet<> ToolsInGraph; |
| |
| for (RecordVector::const_iterator B = EdgeVector.begin(), |
| E = EdgeVector.end(); B != E; ++B) { |
| |
| const Record* Edge = *B; |
| const std::string& NodeA = Edge->getValueAsString("a"); |
| const std::string& NodeB = Edge->getValueAsString("b"); |
| |
| if (NodeA != "root") |
| ToolsInGraph.insert(NodeA); |
| ToolsInGraph.insert(NodeB); |
| } |
| |
| // Filter ToolPropertiesList. |
| ToolDescriptions::iterator new_end = |
| std::remove_if(ToolDescs.begin(), ToolDescs.end(), |
| NotInGraph(ToolsInGraph)); |
| ToolDescs.erase(new_end, ToolDescs.end()); |
| } |
| |
| /// FillInToolToLang - Fills in two tables that map tool names to |
| /// (input, output) languages. Helper function used by TypecheckGraph(). |
| void FillInToolToLang (const ToolDescriptions& ToolDescs, |
| StringMap<StringSet<> >& ToolToInLang, |
| StringMap<std::string>& ToolToOutLang) { |
| for (ToolDescriptions::const_iterator B = ToolDescs.begin(), |
| E = ToolDescs.end(); B != E; ++B) { |
| const ToolDescription& D = *(*B); |
| for (StrVector::const_iterator B = D.InLanguage.begin(), |
| E = D.InLanguage.end(); B != E; ++B) |
| ToolToInLang[D.Name].insert(*B); |
| ToolToOutLang[D.Name] = D.OutLanguage; |
| } |
| } |
| |
| /// TypecheckGraph - Check that names for output and input languages |
| /// on all edges do match. This doesn't do much when the information |
| /// about the whole graph is not available (i.e. when compiling most |
| /// plugins). |
| void TypecheckGraph (const RecordVector& EdgeVector, |
| const ToolDescriptions& ToolDescs) { |
| StringMap<StringSet<> > ToolToInLang; |
| StringMap<std::string> ToolToOutLang; |
| |
| FillInToolToLang(ToolDescs, ToolToInLang, ToolToOutLang); |
| StringMap<std::string>::iterator IAE = ToolToOutLang.end(); |
| StringMap<StringSet<> >::iterator IBE = ToolToInLang.end(); |
| |
| for (RecordVector::const_iterator B = EdgeVector.begin(), |
| E = EdgeVector.end(); B != E; ++B) { |
| const Record* Edge = *B; |
| const std::string& NodeA = Edge->getValueAsString("a"); |
| const std::string& NodeB = Edge->getValueAsString("b"); |
| StringMap<std::string>::iterator IA = ToolToOutLang.find(NodeA); |
| StringMap<StringSet<> >::iterator IB = ToolToInLang.find(NodeB); |
| |
| if (NodeA != "root") { |
| if (IA != IAE && IB != IBE && IB->second.count(IA->second) == 0) |
| throw "Edge " + NodeA + "->" + NodeB |
| + ": output->input language mismatch"; |
| } |
| |
| if (NodeB == "root") |
| throw "Edges back to the root are not allowed!"; |
| } |
| } |
| |
| /// WalkCase - Walks the 'case' expression DAG and invokes |
| /// TestCallback on every test, and StatementCallback on every |
| /// statement. Handles 'case' nesting, but not the 'and' and 'or' |
| /// combinators (that is, they are passed directly to TestCallback). |
| /// TestCallback must have type 'void TestCallback(const DagInit*, unsigned |
| /// IndentLevel, bool FirstTest)'. |
| /// StatementCallback must have type 'void StatementCallback(const Init*, |
| /// unsigned IndentLevel)'. |
| template <typename F1, typename F2> |
| void WalkCase(const Init* Case, F1 TestCallback, F2 StatementCallback, |
| unsigned IndentLevel = 0) |
| { |
| const DagInit& d = InitPtrToDag(Case); |
| |
| // Error checks. |
| if (GetOperatorName(d) != "case") |
| throw "WalkCase should be invoked only on 'case' expressions!"; |
| |
| if (d.getNumArgs() < 2) |
| throw "There should be at least one clause in the 'case' expression:\n" |
| + d.getAsString(); |
| |
| // Main loop. |
| bool even = false; |
| const unsigned numArgs = d.getNumArgs(); |
| unsigned i = 1; |
| for (DagInit::const_arg_iterator B = d.arg_begin(), E = d.arg_end(); |
| B != E; ++B) { |
| Init* arg = *B; |
| |
| if (!even) |
| { |
| // Handle test. |
| const DagInit& Test = InitPtrToDag(arg); |
| |
| if (GetOperatorName(Test) == "default" && (i+1 != numArgs)) |
| throw "The 'default' clause should be the last in the " |
| "'case' construct!"; |
| if (i == numArgs) |
| throw "Case construct handler: no corresponding action " |
| "found for the test " + Test.getAsString() + '!'; |
| |
| TestCallback(Test, IndentLevel, (i == 1)); |
| } |
| else |
| { |
| if (dynamic_cast<DagInit*>(arg) |
| && GetOperatorName(static_cast<DagInit&>(*arg)) == "case") { |
| // Nested 'case'. |
| WalkCase(arg, TestCallback, StatementCallback, IndentLevel + Indent1); |
| } |
| |
| // Handle statement. |
| StatementCallback(arg, IndentLevel); |
| } |
| |
| ++i; |
| even = !even; |
| } |
| } |
| |
| /// ExtractOptionNames - A helper function object used by |
| /// CheckForSuperfluousOptions() to walk the 'case' DAG. |
| class ExtractOptionNames { |
| llvm::StringSet<>& OptionNames_; |
| |
| void processDag(const Init* Statement) { |
| const DagInit& Stmt = InitPtrToDag(Statement); |
| const std::string& ActionName = GetOperatorName(Stmt); |
| if (ActionName == "forward" || ActionName == "forward_as" || |
| ActionName == "forward_value" || |
| ActionName == "forward_transformed_value" || |
| ActionName == "switch_on" || ActionName == "any_switch_on" || |
| ActionName == "parameter_equals" || |
| ActionName == "element_in_list" || ActionName == "not_empty" || |
| ActionName == "empty") { |
| CheckNumberOfArguments(Stmt, 1); |
| |
| Init* Arg = Stmt.getArg(0); |
| if (typeid(*Arg) == typeid(StringInit)) { |
| const std::string& Name = InitPtrToString(Arg); |
| OptionNames_.insert(Name); |
| } |
| else { |
| // It's a list. |
| const ListInit& List = InitPtrToList(Arg); |
| for (ListInit::const_iterator B = List.begin(), E = List.end(); |
| B != E; ++B) { |
| const std::string& Name = InitPtrToString(*B); |
| OptionNames_.insert(Name); |
| } |
| } |
| } |
| else if (ActionName == "and" || ActionName == "or" || ActionName == "not") { |
| for (unsigned i = 0, NumArgs = Stmt.getNumArgs(); i < NumArgs; ++i) { |
| this->processDag(Stmt.getArg(i)); |
| } |
| } |
| } |
| |
| public: |
| ExtractOptionNames(llvm::StringSet<>& OptionNames) : OptionNames_(OptionNames) |
| {} |
| |
| void operator()(const Init* Statement) { |
| if (typeid(*Statement) == typeid(ListInit)) { |
| const ListInit& DagList = *static_cast<const ListInit*>(Statement); |
| for (ListInit::const_iterator B = DagList.begin(), E = DagList.end(); |
| B != E; ++B) |
| this->processDag(*B); |
| } |
| else { |
| this->processDag(Statement); |
| } |
| } |
| |
| void operator()(const DagInit& Test, unsigned, bool) { |
| this->operator()(&Test); |
| } |
| void operator()(const Init* Statement, unsigned) { |
| this->operator()(Statement); |
| } |
| }; |
| |
| /// CheckForSuperfluousOptions - Check that there are no side |
| /// effect-free options (specified only in the OptionList). Otherwise, |
| /// output a warning. |
| void CheckForSuperfluousOptions (const RecordVector& Edges, |
| const ToolDescriptions& ToolDescs, |
| const OptionDescriptions& OptDescs) { |
| llvm::StringSet<> nonSuperfluousOptions; |
| |
| // Add all options mentioned in the ToolDesc.Actions to the set of |
| // non-superfluous options. |
| for (ToolDescriptions::const_iterator B = ToolDescs.begin(), |
| E = ToolDescs.end(); B != E; ++B) { |
| const ToolDescription& TD = *(*B); |
| ExtractOptionNames Callback(nonSuperfluousOptions); |
| if (TD.Actions) |
| WalkCase(TD.Actions, Callback, Callback); |
| } |
| |
| // Add all options mentioned in the 'case' clauses of the |
| // OptionalEdges of the compilation graph to the set of |
| // non-superfluous options. |
| for (RecordVector::const_iterator B = Edges.begin(), E = Edges.end(); |
| B != E; ++B) { |
| const Record* Edge = *B; |
| DagInit& Weight = *Edge->getValueAsDag("weight"); |
| |
| if (!IsDagEmpty(Weight)) |
| WalkCase(&Weight, ExtractOptionNames(nonSuperfluousOptions), Id()); |
| } |
| |
| // Check that all options in OptDescs belong to the set of |
| // non-superfluous options. |
| for (OptionDescriptions::const_iterator B = OptDescs.begin(), |
| E = OptDescs.end(); B != E; ++B) { |
| const OptionDescription& Val = B->second; |
| if (!nonSuperfluousOptions.count(Val.Name) |
| && Val.Type != OptionType::Alias) |
| llvm::errs() << "Warning: option '-" << Val.Name << "' has no effect! " |
| "Probable cause: this option is specified only in the OptionList.\n"; |
| } |
| } |
| |
| /// EmitCaseTest0Args - Helper function used by EmitCaseConstructHandler(). |
| bool EmitCaseTest0Args(const std::string& TestName, raw_ostream& O) { |
| if (TestName == "single_input_file") { |
| O << "InputFilenames.size() == 1"; |
| return true; |
| } |
| else if (TestName == "multiple_input_files") { |
| O << "InputFilenames.size() > 1"; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /// EmitListTest - Helper function used by EmitCaseTest1ArgList(). |
| template <typename F> |
| void EmitListTest(const ListInit& L, const char* LogicOp, |
| F Callback, raw_ostream& O) |
| { |
| // This is a lot like EmitLogicalOperationTest, but works on ListInits instead |
| // of Dags... |
| bool isFirst = true; |
| for (ListInit::const_iterator B = L.begin(), E = L.end(); B != E; ++B) { |
| if (isFirst) |
| isFirst = false; |
| else |
| O << ' ' << LogicOp << ' '; |
| Callback(InitPtrToString(*B), O); |
| } |
| } |
| |
| // Callbacks for use with EmitListTest. |
| |
| class EmitSwitchOn { |
| const OptionDescriptions& OptDescs_; |
| public: |
| EmitSwitchOn(const OptionDescriptions& OptDescs) : OptDescs_(OptDescs) |
| {} |
| |
| void operator()(const std::string& OptName, raw_ostream& O) const { |
| const OptionDescription& OptDesc = OptDescs_.FindSwitch(OptName); |
| O << OptDesc.GenVariableName(); |
| } |
| }; |
| |
| class EmitEmptyTest { |
| bool EmitNegate_; |
| const OptionDescriptions& OptDescs_; |
| public: |
| EmitEmptyTest(bool EmitNegate, const OptionDescriptions& OptDescs) |
| : EmitNegate_(EmitNegate), OptDescs_(OptDescs) |
| {} |
| |
| void operator()(const std::string& OptName, raw_ostream& O) const { |
| const char* Neg = (EmitNegate_ ? "!" : ""); |
| if (OptName == "o") { |
| O << Neg << "OutputFilename.empty()"; |
| } |
| else if (OptName == "save-temps") { |
| O << Neg << "(SaveTemps == SaveTempsEnum::Unset)"; |
| } |
| else { |
| const OptionDescription& OptDesc = OptDescs_.FindListOrParameter(OptName); |
| O << Neg << OptDesc.GenVariableName() << ".empty()"; |
| } |
| } |
| }; |
| |
| |
| /// EmitCaseTest1ArgList - Helper function used by EmitCaseTest1Arg(); |
| bool EmitCaseTest1ArgList(const std::string& TestName, |
| const DagInit& d, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| const ListInit& L = InitPtrToList(d.getArg(0)); |
| |
| if (TestName == "any_switch_on") { |
| EmitListTest(L, "||", EmitSwitchOn(OptDescs), O); |
| return true; |
| } |
| else if (TestName == "switch_on") { |
| EmitListTest(L, "&&", EmitSwitchOn(OptDescs), O); |
| return true; |
| } |
| else if (TestName == "any_not_empty") { |
| EmitListTest(L, "||", EmitEmptyTest(true, OptDescs), O); |
| return true; |
| } |
| else if (TestName == "any_empty") { |
| EmitListTest(L, "||", EmitEmptyTest(false, OptDescs), O); |
| return true; |
| } |
| else if (TestName == "not_empty") { |
| EmitListTest(L, "&&", EmitEmptyTest(true, OptDescs), O); |
| return true; |
| } |
| else if (TestName == "empty") { |
| EmitListTest(L, "&&", EmitEmptyTest(false, OptDescs), O); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /// EmitCaseTest1ArgStr - Helper function used by EmitCaseTest1Arg(); |
| bool EmitCaseTest1ArgStr(const std::string& TestName, |
| const DagInit& d, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| const std::string& OptName = InitPtrToString(d.getArg(0)); |
| |
| if (TestName == "switch_on") { |
| apply(EmitSwitchOn(OptDescs), OptName, O); |
| return true; |
| } |
| else if (TestName == "input_languages_contain") { |
| O << "InLangs.count(\"" << OptName << "\") != 0"; |
| return true; |
| } |
| else if (TestName == "in_language") { |
| // This works only for single-argument Tool::GenerateAction. Join |
| // tools can process several files in different languages simultaneously. |
| |
| // TODO: make this work with Edge::Weight (if possible). |
| O << "LangMap.GetLanguage(inFile) == \"" << OptName << '\"'; |
| return true; |
| } |
| else if (TestName == "not_empty" || TestName == "empty") { |
| bool EmitNegate = (TestName == "not_empty"); |
| apply(EmitEmptyTest(EmitNegate, OptDescs), OptName, O); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /// EmitCaseTest1Arg - Helper function used by EmitCaseConstructHandler(); |
| bool EmitCaseTest1Arg(const std::string& TestName, |
| const DagInit& d, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| CheckNumberOfArguments(d, 1); |
| if (typeid(*d.getArg(0)) == typeid(ListInit)) |
| return EmitCaseTest1ArgList(TestName, d, OptDescs, O); |
| else |
| return EmitCaseTest1ArgStr(TestName, d, OptDescs, O); |
| } |
| |
| /// EmitCaseTest2Args - Helper function used by EmitCaseConstructHandler(). |
| bool EmitCaseTest2Args(const std::string& TestName, |
| const DagInit& d, |
| unsigned IndentLevel, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| CheckNumberOfArguments(d, 2); |
| const std::string& OptName = InitPtrToString(d.getArg(0)); |
| const std::string& OptArg = InitPtrToString(d.getArg(1)); |
| |
| if (TestName == "parameter_equals") { |
| const OptionDescription& OptDesc = OptDescs.FindParameter(OptName); |
| O << OptDesc.GenVariableName() << " == \"" << OptArg << "\""; |
| return true; |
| } |
| else if (TestName == "element_in_list") { |
| const OptionDescription& OptDesc = OptDescs.FindParameterList(OptName); |
| const std::string& VarName = OptDesc.GenVariableName(); |
| O << "std::find(" << VarName << ".begin(),\n"; |
| O.indent(IndentLevel + Indent1) |
| << VarName << ".end(), \"" |
| << OptArg << "\") != " << VarName << ".end()"; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| // Forward declaration. |
| // EmitLogicalOperationTest and EmitCaseTest are mutually recursive. |
| void EmitCaseTest(const DagInit& d, unsigned IndentLevel, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O); |
| |
| /// EmitLogicalOperationTest - Helper function used by |
| /// EmitCaseConstructHandler. |
| void EmitLogicalOperationTest(const DagInit& d, const char* LogicOp, |
| unsigned IndentLevel, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| O << '('; |
| for (unsigned j = 0, NumArgs = d.getNumArgs(); j < NumArgs; ++j) { |
| const DagInit& InnerTest = InitPtrToDag(d.getArg(j)); |
| EmitCaseTest(InnerTest, IndentLevel, OptDescs, O); |
| if (j != NumArgs - 1) { |
| O << ")\n"; |
| O.indent(IndentLevel + Indent1) << ' ' << LogicOp << " ("; |
| } |
| else { |
| O << ')'; |
| } |
| } |
| } |
| |
| void EmitLogicalNot(const DagInit& d, unsigned IndentLevel, |
| const OptionDescriptions& OptDescs, raw_ostream& O) |
| { |
| CheckNumberOfArguments(d, 1); |
| const DagInit& InnerTest = InitPtrToDag(d.getArg(0)); |
| O << "! ("; |
| EmitCaseTest(InnerTest, IndentLevel, OptDescs, O); |
| O << ")"; |
| } |
| |
| /// EmitCaseTest - Helper function used by EmitCaseConstructHandler. |
| void EmitCaseTest(const DagInit& d, unsigned IndentLevel, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| const std::string& TestName = GetOperatorName(d); |
| |
| if (TestName == "and") |
| EmitLogicalOperationTest(d, "&&", IndentLevel, OptDescs, O); |
| else if (TestName == "or") |
| EmitLogicalOperationTest(d, "||", IndentLevel, OptDescs, O); |
| else if (TestName == "not") |
| EmitLogicalNot(d, IndentLevel, OptDescs, O); |
| else if (EmitCaseTest0Args(TestName, O)) |
| return; |
| else if (EmitCaseTest1Arg(TestName, d, OptDescs, O)) |
| return; |
| else if (EmitCaseTest2Args(TestName, d, IndentLevel, OptDescs, O)) |
| return; |
| else |
| throw "Unknown test '" + TestName + "' used in the 'case' construct!"; |
| } |
| |
| |
| /// EmitCaseTestCallback - Callback used by EmitCaseConstructHandler. |
| class EmitCaseTestCallback { |
| bool EmitElseIf_; |
| const OptionDescriptions& OptDescs_; |
| raw_ostream& O_; |
| public: |
| |
| EmitCaseTestCallback(bool EmitElseIf, |
| const OptionDescriptions& OptDescs, raw_ostream& O) |
| : EmitElseIf_(EmitElseIf), OptDescs_(OptDescs), O_(O) |
| {} |
| |
| void operator()(const DagInit& Test, unsigned IndentLevel, bool FirstTest) |
| { |
| if (GetOperatorName(Test) == "default") { |
| O_.indent(IndentLevel) << "else {\n"; |
| } |
| else { |
| O_.indent(IndentLevel) |
| << ((!FirstTest && EmitElseIf_) ? "else if (" : "if ("); |
| EmitCaseTest(Test, IndentLevel, OptDescs_, O_); |
| O_ << ") {\n"; |
| } |
| } |
| }; |
| |
| /// EmitCaseStatementCallback - Callback used by EmitCaseConstructHandler. |
| template <typename F> |
| class EmitCaseStatementCallback { |
| F Callback_; |
| raw_ostream& O_; |
| public: |
| |
| EmitCaseStatementCallback(F Callback, raw_ostream& O) |
| : Callback_(Callback), O_(O) |
| {} |
| |
| void operator() (const Init* Statement, unsigned IndentLevel) { |
| |
| // Ignore nested 'case' DAG. |
| if (!(dynamic_cast<const DagInit*>(Statement) && |
| GetOperatorName(static_cast<const DagInit&>(*Statement)) == "case")) { |
| if (typeid(*Statement) == typeid(ListInit)) { |
| const ListInit& DagList = *static_cast<const ListInit*>(Statement); |
| for (ListInit::const_iterator B = DagList.begin(), E = DagList.end(); |
| B != E; ++B) |
| Callback_(*B, (IndentLevel + Indent1), O_); |
| } |
| else { |
| Callback_(Statement, (IndentLevel + Indent1), O_); |
| } |
| } |
| O_.indent(IndentLevel) << "}\n"; |
| } |
| |
| }; |
| |
| /// EmitCaseConstructHandler - Emit code that handles the 'case' |
| /// construct. Takes a function object that should emit code for every case |
| /// clause. Implemented on top of WalkCase. |
| /// Callback's type is void F(const Init* Statement, unsigned IndentLevel, |
| /// raw_ostream& O). |
| /// EmitElseIf parameter controls the type of condition that is emitted ('if |
| /// (..) {..} else if (..) {} .. else {..}' vs. 'if (..) {..} if(..) {..} |
| /// .. else {..}'). |
| template <typename F> |
| void EmitCaseConstructHandler(const Init* Case, unsigned IndentLevel, |
| F Callback, bool EmitElseIf, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| WalkCase(Case, EmitCaseTestCallback(EmitElseIf, OptDescs, O), |
| EmitCaseStatementCallback<F>(Callback, O), IndentLevel); |
| } |
| |
| /// TokenizeCmdLine - converts from |
| /// "$CALL(HookName, 'Arg1', 'Arg2')/path -arg1 -arg2" to |
| /// ["$CALL(", "HookName", "Arg1", "Arg2", ")/path", "-arg1", "-arg2"]. |
| void TokenizeCmdLine(const std::string& CmdLine, StrVector& Out) { |
| const char* Delimiters = " \t\n\v\f\r"; |
| enum TokenizerState |
| { Normal, SpecialCommand, InsideSpecialCommand, InsideQuotationMarks } |
| cur_st = Normal; |
| |
| if (CmdLine.empty()) |
| return; |
| Out.push_back(""); |
| |
| std::string::size_type B = CmdLine.find_first_not_of(Delimiters), |
| E = CmdLine.size(); |
| |
| for (; B != E; ++B) { |
| char cur_ch = CmdLine[B]; |
| |
| switch (cur_st) { |
| case Normal: |
| if (cur_ch == '$') { |
| cur_st = SpecialCommand; |
| break; |
| } |
| if (OneOf(Delimiters, cur_ch)) { |
| // Skip whitespace |
| B = CmdLine.find_first_not_of(Delimiters, B); |
| if (B == std::string::npos) { |
| B = E-1; |
| continue; |
| } |
| --B; |
| Out.push_back(""); |
| continue; |
| } |
| break; |
| |
| |
| case SpecialCommand: |
| if (OneOf(Delimiters, cur_ch)) { |
| cur_st = Normal; |
| Out.push_back(""); |
| continue; |
| } |
| if (cur_ch == '(') { |
| Out.push_back(""); |
| cur_st = InsideSpecialCommand; |
| continue; |
| } |
| break; |
| |
| case InsideSpecialCommand: |
| if (OneOf(Delimiters, cur_ch)) { |
| continue; |
| } |
| if (cur_ch == '\'') { |
| cur_st = InsideQuotationMarks; |
| Out.push_back(""); |
| continue; |
| } |
| if (cur_ch == ')') { |
| cur_st = Normal; |
| Out.push_back(""); |
| } |
| if (cur_ch == ',') { |
| continue; |
| } |
| |
| break; |
| |
| case InsideQuotationMarks: |
| if (cur_ch == '\'') { |
| cur_st = InsideSpecialCommand; |
| continue; |
| } |
| break; |
| } |
| |
| Out.back().push_back(cur_ch); |
| } |
| } |
| |
| /// SubstituteCall - Given "$CALL(HookName, [Arg1 [, Arg2 [...]]])", output |
| /// "hooks::HookName([Arg1 [, Arg2 [, ...]]])". Helper function used by |
| /// SubstituteSpecialCommands(). |
| StrVector::const_iterator |
| SubstituteCall (StrVector::const_iterator Pos, |
| StrVector::const_iterator End, |
| bool IsJoin, raw_ostream& O) |
| { |
| const char* errorMessage = "Syntax error in $CALL invocation!"; |
| CheckedIncrement(Pos, End, errorMessage); |
| const std::string& CmdName = *Pos; |
| |
| if (CmdName == ")") |
| throw "$CALL invocation: empty argument list!"; |
| |
| O << "hooks::"; |
| O << CmdName << "("; |
| |
| |
| bool firstIteration = true; |
| while (true) { |
| CheckedIncrement(Pos, End, errorMessage); |
| const std::string& Arg = *Pos; |
| assert(Arg.size() != 0); |
| |
| if (Arg[0] == ')') |
| break; |
| |
| if (firstIteration) |
| firstIteration = false; |
| else |
| O << ", "; |
| |
| if (Arg == "$INFILE") { |
| if (IsJoin) |
| throw "$CALL(Hook, $INFILE) can't be used with a Join tool!"; |
| else |
| O << "inFile.c_str()"; |
| } |
| else { |
| O << '"' << Arg << '"'; |
| } |
| } |
| |
| O << ')'; |
| |
| return Pos; |
| } |
| |
| /// SubstituteEnv - Given '$ENV(VAR_NAME)', output 'getenv("VAR_NAME")'. Helper |
| /// function used by SubstituteSpecialCommands(). |
| StrVector::const_iterator |
| SubstituteEnv (StrVector::const_iterator Pos, |
| StrVector::const_iterator End, raw_ostream& O) |
| { |
| const char* errorMessage = "Syntax error in $ENV invocation!"; |
| CheckedIncrement(Pos, End, errorMessage); |
| const std::string& EnvName = *Pos; |
| |
| if (EnvName == ")") |
| throw "$ENV invocation: empty argument list!"; |
| |
| O << "checkCString(std::getenv(\""; |
| O << EnvName; |
| O << "\"))"; |
| |
| CheckedIncrement(Pos, End, errorMessage); |
| |
| return Pos; |
| } |
| |
| /// SubstituteSpecialCommands - Given an invocation of $CALL or $ENV, output |
| /// handler code. Helper function used by EmitCmdLineVecFill(). |
| StrVector::const_iterator |
| SubstituteSpecialCommands (StrVector::const_iterator Pos, |
| StrVector::const_iterator End, |
| bool IsJoin, raw_ostream& O) |
| { |
| |
| const std::string& cmd = *Pos; |
| |
| // Perform substitution. |
| if (cmd == "$CALL") { |
| Pos = SubstituteCall(Pos, End, IsJoin, O); |
| } |
| else if (cmd == "$ENV") { |
| Pos = SubstituteEnv(Pos, End, O); |
| } |
| else { |
| throw "Unknown special command: " + cmd; |
| } |
| |
| // Handle '$CMD(ARG)/additional/text'. |
| const std::string& Leftover = *Pos; |
| assert(Leftover.at(0) == ')'); |
| if (Leftover.size() != 1) |
| O << " + std::string(\"" << (Leftover.c_str() + 1) << "\")"; |
| |
| return Pos; |
| } |
| |
| /// EmitCmdLineVecFill - Emit code that fills in the command line |
| /// vector. Helper function used by EmitGenerateActionMethod(). |
| void EmitCmdLineVecFill(const Init* CmdLine, const std::string& ToolName, |
| bool IsJoin, unsigned IndentLevel, |
| raw_ostream& O) { |
| StrVector StrVec; |
| TokenizeCmdLine(InitPtrToString(CmdLine), StrVec); |
| |
| if (StrVec.empty()) |
| throw "Tool '" + ToolName + "' has empty command line!"; |
| |
| StrVector::const_iterator B = StrVec.begin(), E = StrVec.end(); |
| |
| // Emit the command itself. |
| assert(!StrVec[0].empty()); |
| O.indent(IndentLevel) << "cmd = "; |
| if (StrVec[0][0] == '$') { |
| B = SubstituteSpecialCommands(B, E, IsJoin, O); |
| ++B; |
| } |
| else { |
| O << '"' << StrVec[0] << '"'; |
| ++B; |
| } |
| O << ";\n"; |
| |
| // Go through the command arguments. |
| assert(B <= E); |
| for (; B != E; ++B) { |
| const std::string& cmd = *B; |
| |
| assert(!cmd.empty()); |
| O.indent(IndentLevel); |
| |
| if (cmd.at(0) == '$') { |
| O << "vec.push_back(std::make_pair(0, "; |
| B = SubstituteSpecialCommands(B, E, IsJoin, O); |
| O << "));\n"; |
| } |
| else { |
| O << "vec.push_back(std::make_pair(0, \"" << cmd << "\"));\n"; |
| } |
| } |
| |
| } |
| |
| /// EmitForEachListElementCycleHeader - Emit common code for iterating through |
| /// all elements of a list. Helper function used by |
| /// EmitForwardOptionPropertyHandlingCode. |
| void EmitForEachListElementCycleHeader (const OptionDescription& D, |
| unsigned IndentLevel, |
| raw_ostream& O) { |
| unsigned IndentLevel1 = IndentLevel + Indent1; |
| |
| O.indent(IndentLevel) |
| << "for (" << D.GenTypeDeclaration() |
| << "::iterator B = " << D.GenVariableName() << ".begin(),\n"; |
| O.indent(IndentLevel) |
| << "E = " << D.GenVariableName() << ".end(); B != E;) {\n"; |
| O.indent(IndentLevel1) << "unsigned pos = " << D.GenVariableName() |
| << ".getPosition(B - " << D.GenVariableName() |
| << ".begin());\n"; |
| } |
| |
| /// EmitForwardOptionPropertyHandlingCode - Helper function used to |
| /// implement EmitActionHandler. Emits code for |
| /// handling the (forward) and (forward_as) option properties. |
| void EmitForwardOptionPropertyHandlingCode (const OptionDescription& D, |
| unsigned IndentLevel, |
| const std::string& NewName, |
| raw_ostream& O) { |
| const std::string& Name = NewName.empty() |
| ? ("-" + D.Name) |
| : NewName; |
| unsigned IndentLevel1 = IndentLevel + Indent1; |
| |
| switch (D.Type) { |
| case OptionType::Switch: |
| O.indent(IndentLevel) |
| << "vec.push_back(std::make_pair(" << D.GenVariableName() |
| << ".getPosition(), \"" << Name << "\"));\n"; |
| break; |
| case OptionType::Parameter: |
| O.indent(IndentLevel) << "vec.push_back(std::make_pair(" |
| << D.GenVariableName() |
| <<".getPosition(), \"" << Name; |
| |
| if (!D.isForwardNotSplit()) { |
| O << "\"));\n"; |
| O.indent(IndentLevel) << "vec.push_back(std::make_pair(" |
| << D.GenVariableName() << ".getPosition(), " |
| << D.GenVariableName() << "));\n"; |
| } |
| else { |
| O << "=\" + " << D.GenVariableName() << "));\n"; |
| } |
| break; |
| case OptionType::Prefix: |
| O.indent(IndentLevel) << "vec.push_back(std::make_pair(" |
| << D.GenVariableName() << ".getPosition(), \"" |
| << Name << "\" + " |
| << D.GenVariableName() << "));\n"; |
| break; |
| case OptionType::PrefixList: |
| EmitForEachListElementCycleHeader(D, IndentLevel, O); |
| O.indent(IndentLevel1) << "vec.push_back(std::make_pair(pos, \"" |
| << Name << "\" + " << "*B));\n"; |
| O.indent(IndentLevel1) << "++B;\n"; |
| |
| for (int i = 1, j = D.MultiVal; i < j; ++i) { |
| O.indent(IndentLevel1) << "vec.push_back(std::make_pair(pos, *B));\n"; |
| O.indent(IndentLevel1) << "++B;\n"; |
| } |
| |
| O.indent(IndentLevel) << "}\n"; |
| break; |
| case OptionType::ParameterList: |
| EmitForEachListElementCycleHeader(D, IndentLevel, O); |
| O.indent(IndentLevel1) << "vec.push_back(std::make_pair(pos, \"" |
| << Name << "\"));\n"; |
| |
| for (int i = 0, j = D.MultiVal; i < j; ++i) { |
| O.indent(IndentLevel1) << "vec.push_back(std::make_pair(pos, *B));\n"; |
| O.indent(IndentLevel1) << "++B;\n"; |
| } |
| |
| O.indent(IndentLevel) << "}\n"; |
| break; |
| case OptionType::SwitchList: |
| EmitForEachListElementCycleHeader(D, IndentLevel, O); |
| O.indent(IndentLevel1) << "vec.push_back(std::make_pair(pos, \"" |
| << Name << "\"));\n"; |
| O.indent(IndentLevel1) << "++B;\n"; |
| O.indent(IndentLevel) << "}\n"; |
| break; |
| case OptionType::Alias: |
| default: |
| throw "Aliases are not allowed in tool option descriptions!"; |
| } |
| } |
| |
| /// ActionHandlingCallbackBase - Base class of EmitActionHandlersCallback and |
| /// EmitPreprocessOptionsCallback. |
| struct ActionHandlingCallbackBase |
| { |
| |
| void onErrorDag(const DagInit& d, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| O.indent(IndentLevel) |
| << "PrintError(\"" |
| << (d.getNumArgs() >= 1 ? InitPtrToString(d.getArg(0)) : "Unknown error!") |
| << "\");\n"; |
| O.indent(IndentLevel) << "return 1;\n"; |
| } |
| |
| void onWarningDag(const DagInit& d, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(d, 1); |
| O.indent(IndentLevel) << "llvm::errs() << \"" |
| << InitPtrToString(d.getArg(0)) << "\";\n"; |
| } |
| |
| }; |
| |
| /// EmitActionHandlersCallback - Emit code that handles actions. Used by |
| /// EmitGenerateActionMethod() as an argument to EmitCaseConstructHandler(). |
| |
| class EmitActionHandlersCallback; |
| |
| typedef void (EmitActionHandlersCallback::* EmitActionHandlersCallbackHandler) |
| (const DagInit&, unsigned, raw_ostream&) const; |
| |
| class EmitActionHandlersCallback : |
| public ActionHandlingCallbackBase, |
| public HandlerTable<EmitActionHandlersCallbackHandler> |
| { |
| typedef EmitActionHandlersCallbackHandler Handler; |
| |
| const OptionDescriptions& OptDescs; |
| |
| /// EmitHookInvocation - Common code for hook invocation from actions. Used by |
| /// onAppendCmd and onOutputSuffix. |
| void EmitHookInvocation(const std::string& Str, |
| const char* BlockOpen, const char* BlockClose, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| StrVector Out; |
| TokenizeCmdLine(Str, Out); |
| |
| for (StrVector::const_iterator B = Out.begin(), E = Out.end(); |
| B != E; ++B) { |
| const std::string& cmd = *B; |
| |
| O.indent(IndentLevel) << BlockOpen; |
| |
| if (cmd.at(0) == '$') |
| B = SubstituteSpecialCommands(B, E, /* IsJoin = */ true, O); |
| else |
| O << '"' << cmd << '"'; |
| |
| O << BlockClose; |
| } |
| } |
| |
| void onAppendCmd (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 1); |
| this->EmitHookInvocation(InitPtrToString(Dag.getArg(0)), |
| "vec.push_back(std::make_pair(65536, ", "));\n", |
| IndentLevel, O); |
| } |
| |
| void onForward (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 1); |
| const std::string& Name = InitPtrToString(Dag.getArg(0)); |
| EmitForwardOptionPropertyHandlingCode(OptDescs.FindOption(Name), |
| IndentLevel, "", O); |
| } |
| |
| void onForwardAs (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 2); |
| const std::string& Name = InitPtrToString(Dag.getArg(0)); |
| const std::string& NewName = InitPtrToString(Dag.getArg(1)); |
| EmitForwardOptionPropertyHandlingCode(OptDescs.FindOption(Name), |
| IndentLevel, NewName, O); |
| } |
| |
| void onForwardValue (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 1); |
| const std::string& Name = InitPtrToString(Dag.getArg(0)); |
| const OptionDescription& D = OptDescs.FindParameterListOrParameter(Name); |
| |
| if (D.isSwitchList()) { |
| throw std::runtime_error |
| ("forward_value is not allowed with switch_list"); |
| } |
| |
| if (D.isParameter()) { |
| O.indent(IndentLevel) << "vec.push_back(std::make_pair(" |
| << D.GenVariableName() << ".getPosition(), " |
| << D.GenVariableName() << "));\n"; |
| } |
| else { |
| O.indent(IndentLevel) << "for (" << D.GenTypeDeclaration() |
| << "::iterator B = " << D.GenVariableName() |
| << ".begin(), \n"; |
| O.indent(IndentLevel + Indent1) << " E = " << D.GenVariableName() |
| << ".end(); B != E; ++B)\n"; |
| O.indent(IndentLevel) << "{\n"; |
| O.indent(IndentLevel + Indent1) |
| << "unsigned pos = " << D.GenVariableName() |
| << ".getPosition(B - " << D.GenVariableName() |
| << ".begin());\n"; |
| O.indent(IndentLevel + Indent1) |
| << "vec.push_back(std::make_pair(pos, *B));\n"; |
| O.indent(IndentLevel) << "}\n"; |
| } |
| } |
| |
| void onForwardTransformedValue (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 2); |
| const std::string& Name = InitPtrToString(Dag.getArg(0)); |
| const std::string& Hook = InitPtrToString(Dag.getArg(1)); |
| const OptionDescription& D = OptDescs.FindParameterListOrParameter(Name); |
| |
| O.indent(IndentLevel) << "vec.push_back(std::make_pair(" |
| << D.GenVariableName() << ".getPosition(" |
| << (D.isList() ? "0" : "") << "), " |
| << "hooks::" << Hook << "(" << D.GenVariableName() |
| << (D.isParameter() ? ".c_str()" : "") << ")));\n"; |
| } |
| |
| void onNoOutFile (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 0); |
| O.indent(IndentLevel) << "no_out_file = true;\n"; |
| } |
| |
| void onOutputSuffix (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(Dag, 1); |
| this->EmitHookInvocation(InitPtrToString(Dag.getArg(0)), |
| "output_suffix = ", ";\n", IndentLevel, O); |
| } |
| |
| void onStopCompilation (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| O.indent(IndentLevel) << "stop_compilation = true;\n"; |
| } |
| |
| |
| void onUnpackValues (const DagInit& Dag, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| throw "'unpack_values' is deprecated. " |
| "Use 'comma_separated' + 'forward_value' instead!"; |
| } |
| |
| public: |
| |
| explicit EmitActionHandlersCallback(const OptionDescriptions& OD) |
| : OptDescs(OD) |
| { |
| if (!staticMembersInitialized_) { |
| AddHandler("error", &EmitActionHandlersCallback::onErrorDag); |
| AddHandler("warning", &EmitActionHandlersCallback::onWarningDag); |
| AddHandler("append_cmd", &EmitActionHandlersCallback::onAppendCmd); |
| AddHandler("forward", &EmitActionHandlersCallback::onForward); |
| AddHandler("forward_as", &EmitActionHandlersCallback::onForwardAs); |
| AddHandler("forward_value", &EmitActionHandlersCallback::onForwardValue); |
| AddHandler("forward_transformed_value", |
| &EmitActionHandlersCallback::onForwardTransformedValue); |
| AddHandler("no_out_file", |
| &EmitActionHandlersCallback::onNoOutFile); |
| AddHandler("output_suffix", &EmitActionHandlersCallback::onOutputSuffix); |
| AddHandler("stop_compilation", |
| &EmitActionHandlersCallback::onStopCompilation); |
| AddHandler("unpack_values", |
| &EmitActionHandlersCallback::onUnpackValues); |
| |
| |
| staticMembersInitialized_ = true; |
| } |
| } |
| |
| void operator()(const Init* I, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| InvokeDagInitHandler(this, I, IndentLevel, O); |
| } |
| }; |
| |
| void EmitGenerateActionMethodHeader(const ToolDescription& D, |
| bool IsJoin, bool Naked, |
| raw_ostream& O) |
| { |
| O.indent(Indent1) << "int GenerateAction(Action& Out,\n"; |
| |
| if (IsJoin) |
| O.indent(Indent2) << "const PathVector& inFiles,\n"; |
| else |
| O.indent(Indent2) << "const sys::Path& inFile,\n"; |
| |
| O.indent(Indent2) << "const bool HasChildren,\n"; |
| O.indent(Indent2) << "const llvm::sys::Path& TempDir,\n"; |
| O.indent(Indent2) << "const InputLanguagesSet& InLangs,\n"; |
| O.indent(Indent2) << "const LanguageMap& LangMap) const\n"; |
| O.indent(Indent1) << "{\n"; |
| |
| if (!Naked) { |
| O.indent(Indent2) << "std::string cmd;\n"; |
| O.indent(Indent2) << "std::string out_file;\n"; |
| O.indent(Indent2) |
| << "std::vector<std::pair<unsigned, std::string> > vec;\n"; |
| O.indent(Indent2) << "bool stop_compilation = !HasChildren;\n"; |
| O.indent(Indent2) << "bool no_out_file = false;\n"; |
| O.indent(Indent2) << "std::string output_suffix(\"" |
| << D.OutputSuffix << "\");\n"; |
| } |
| } |
| |
| // EmitGenerateActionMethod - Emit either a normal or a "join" version of the |
| // Tool::GenerateAction() method. |
| void EmitGenerateActionMethod (const ToolDescription& D, |
| const OptionDescriptions& OptDescs, |
| bool IsJoin, raw_ostream& O) { |
| |
| EmitGenerateActionMethodHeader(D, IsJoin, /* Naked = */ false, O); |
| |
| if (!D.CmdLine) |
| throw "Tool " + D.Name + " has no cmd_line property!"; |
| |
| // Process the 'command' property. |
| O << '\n'; |
| EmitCmdLineVecFill(D.CmdLine, D.Name, IsJoin, Indent2, O); |
| O << '\n'; |
| |
| // Process the 'actions' list of this tool. |
| if (D.Actions) |
| EmitCaseConstructHandler(D.Actions, Indent2, |
| EmitActionHandlersCallback(OptDescs), |
| false, OptDescs, O); |
| O << '\n'; |
| |
| // Input file (s) |
| if (!D.InFileOption.empty()) { |
| O.indent(Indent2) |
| << "vec.push_back(std::make_pair(InputFilenames.getPosition(0), \"" |
| << D.InFileOption << "\");\n"; |
| } |
| |
| if (IsJoin) { |
| O.indent(Indent2) |
| << "for (PathVector::const_iterator B = inFiles.begin(),\n"; |
| O.indent(Indent3) << "E = inFiles.end(); B != E; ++B)\n"; |
| O.indent(Indent2) << "{\n"; |
| O.indent(Indent3) << "vec.push_back(std::make_pair(" |
| << "InputFilenames.getPosition(B - inFiles.begin()), " |
| << "B->str()));\n"; |
| O.indent(Indent2) << "}\n"; |
| } |
| else { |
| O.indent(Indent2) << "vec.push_back(std::make_pair(" |
| << "InputFilenames.getPosition(0), inFile.str()));\n"; |
| } |
| |
| // Output file |
| O.indent(Indent2) << "if (!no_out_file) {\n"; |
| if (!D.OutFileOption.empty()) |
| O.indent(Indent3) << "vec.push_back(std::make_pair(65536, \"" |
| << D.OutFileOption << "\"));\n"; |
| |
| O.indent(Indent3) << "out_file = this->OutFilename(" |
| << (IsJoin ? "sys::Path(),\n" : "inFile,\n"); |
| O.indent(Indent4) << |
| "TempDir, stop_compilation, output_suffix.c_str()).str();\n\n"; |
| O.indent(Indent3) << "vec.push_back(std::make_pair(65536, out_file));\n"; |
| |
| O.indent(Indent2) << "}\n\n"; |
| |
| // Handle the Sink property. |
| if (D.isSink()) { |
| O.indent(Indent2) << "if (!" << SinkOptionName << ".empty()) {\n"; |
| O.indent(Indent3) << "for (cl::list<std::string>::iterator B = " |
| << SinkOptionName << ".begin(), E = " << SinkOptionName |
| << ".end(); B != E; ++B)\n"; |
| O.indent(Indent4) << "vec.push_back(std::make_pair(" << SinkOptionName |
| << ".getPosition(B - " << SinkOptionName |
| << ".begin()), *B));\n"; |
| O.indent(Indent2) << "}\n"; |
| } |
| |
| O.indent(Indent2) << "Out.Construct(cmd, this->SortArgs(vec), " |
| << "stop_compilation, out_file);\n"; |
| O.indent(Indent2) << "return 0;\n"; |
| O.indent(Indent1) << "}\n\n"; |
| } |
| |
| /// EmitGenerateActionMethods - Emit two GenerateAction() methods for |
| /// a given Tool class. |
| void EmitGenerateActionMethods (const ToolDescription& ToolDesc, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| if (!ToolDesc.isJoin()) { |
| EmitGenerateActionMethodHeader(ToolDesc, /* IsJoin = */ true, |
| /* Naked = */ true, O); |
| O.indent(Indent2) << "PrintError(\"" << ToolDesc.Name |
| << " is not a Join tool!\");\n"; |
| O.indent(Indent2) << "return -1;\n"; |
| O.indent(Indent1) << "}\n\n"; |
| } |
| else { |
| EmitGenerateActionMethod(ToolDesc, OptDescs, true, O); |
| } |
| |
| EmitGenerateActionMethod(ToolDesc, OptDescs, false, O); |
| } |
| |
| /// EmitInOutLanguageMethods - Emit the [Input,Output]Language() |
| /// methods for a given Tool class. |
| void EmitInOutLanguageMethods (const ToolDescription& D, raw_ostream& O) { |
| O.indent(Indent1) << "const char** InputLanguages() const {\n"; |
| O.indent(Indent2) << "return InputLanguages_;\n"; |
| O.indent(Indent1) << "}\n\n"; |
| |
| if (D.OutLanguage.empty()) |
| throw "Tool " + D.Name + " has no 'out_language' property!"; |
| |
| O.indent(Indent1) << "const char* OutputLanguage() const {\n"; |
| O.indent(Indent2) << "return \"" << D.OutLanguage << "\";\n"; |
| O.indent(Indent1) << "}\n\n"; |
| } |
| |
| /// EmitNameMethod - Emit the Name() method for a given Tool class. |
| void EmitNameMethod (const ToolDescription& D, raw_ostream& O) { |
| O.indent(Indent1) << "const char* Name() const {\n"; |
| O.indent(Indent2) << "return \"" << D.Name << "\";\n"; |
| O.indent(Indent1) << "}\n\n"; |
| } |
| |
| /// EmitIsJoinMethod - Emit the IsJoin() method for a given Tool |
| /// class. |
| void EmitIsJoinMethod (const ToolDescription& D, raw_ostream& O) { |
| O.indent(Indent1) << "bool IsJoin() const {\n"; |
| if (D.isJoin()) |
| O.indent(Indent2) << "return true;\n"; |
| else |
| O.indent(Indent2) << "return false;\n"; |
| O.indent(Indent1) << "}\n\n"; |
| } |
| |
| /// EmitWorksOnEmptyCallback - Callback used by EmitWorksOnEmptyMethod in |
| /// conjunction with EmitCaseConstructHandler. |
| void EmitWorksOnEmptyCallback (const Init* Value, |
| unsigned IndentLevel, raw_ostream& O) { |
| CheckBooleanConstant(Value); |
| O.indent(IndentLevel) << "return " << Value->getAsString() << ";\n"; |
| } |
| |
| /// EmitWorksOnEmptyMethod - Emit the WorksOnEmpty() method for a given Tool |
| /// class. |
| void EmitWorksOnEmptyMethod (const ToolDescription& D, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) |
| { |
| O.indent(Indent1) << "bool WorksOnEmpty() const {\n"; |
| if (D.OnEmpty == 0) |
| O.indent(Indent2) << "return false;\n"; |
| else |
| EmitCaseConstructHandler(D.OnEmpty, Indent2, EmitWorksOnEmptyCallback, |
| /*EmitElseIf = */ true, OptDescs, O); |
| O.indent(Indent1) << "}\n\n"; |
| } |
| |
| /// EmitStaticMemberDefinitions - Emit static member definitions for a |
| /// given Tool class. |
| void EmitStaticMemberDefinitions(const ToolDescription& D, raw_ostream& O) { |
| if (D.InLanguage.empty()) |
| throw "Tool " + D.Name + " has no 'in_language' property!"; |
| |
| O << "const char* " << D.Name << "::InputLanguages_[] = {"; |
| for (StrVector::const_iterator B = D.InLanguage.begin(), |
| E = D.InLanguage.end(); B != E; ++B) |
| O << '\"' << *B << "\", "; |
| O << "0};\n\n"; |
| } |
| |
| /// EmitToolClassDefinition - Emit a Tool class definition. |
| void EmitToolClassDefinition (const ToolDescription& D, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| if (D.Name == "root") |
| return; |
| |
| // Header |
| O << "class " << D.Name << " : public "; |
| if (D.isJoin()) |
| O << "JoinTool"; |
| else |
| O << "Tool"; |
| |
| O << " {\nprivate:\n"; |
| O.indent(Indent1) << "static const char* InputLanguages_[];\n\n"; |
| |
| O << "public:\n"; |
| EmitNameMethod(D, O); |
| EmitInOutLanguageMethods(D, O); |
| EmitIsJoinMethod(D, O); |
| EmitWorksOnEmptyMethod(D, OptDescs, O); |
| EmitGenerateActionMethods(D, OptDescs, O); |
| |
| // Close class definition |
| O << "};\n"; |
| |
| EmitStaticMemberDefinitions(D, O); |
| |
| } |
| |
| /// EmitOptionDefinitions - Iterate over a list of option descriptions |
| /// and emit registration code. |
| void EmitOptionDefinitions (const OptionDescriptions& descs, |
| bool HasSink, raw_ostream& O) |
| { |
| std::vector<OptionDescription> Aliases; |
| |
| // Emit static cl::Option variables. |
| for (OptionDescriptions::const_iterator B = descs.begin(), |
| E = descs.end(); B!=E; ++B) { |
| const OptionDescription& val = B->second; |
| |
| if (val.Type == OptionType::Alias) { |
| Aliases.push_back(val); |
| continue; |
| } |
| |
| O << val.GenTypeDeclaration() << ' ' |
| << val.GenVariableName(); |
| |
| O << "(\"" << val.Name << "\"\n"; |
| |
| if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList) |
| O << ", cl::Prefix"; |
| |
| if (val.isRequired()) { |
| if (val.isList() && !val.isMultiVal()) |
| O << ", cl::OneOrMore"; |
| else |
| O << ", cl::Required"; |
| } |
| |
| if (val.isOptional()) |
| O << ", cl::Optional"; |
| |
| if (val.isOneOrMore()) |
| O << ", cl::OneOrMore"; |
| |
| if (val.isZeroOrMore()) |
| O << ", cl::ZeroOrMore"; |
| |
| if (val.isReallyHidden()) |
| O << ", cl::ReallyHidden"; |
| else if (val.isHidden()) |
| O << ", cl::Hidden"; |
| |
| if (val.isCommaSeparated()) |
| O << ", cl::CommaSeparated"; |
| |
| if (val.MultiVal > 1) |
| O << ", cl::multi_val(" << val.MultiVal << ')'; |
| |
| if (val.InitVal) { |
| const std::string& str = val.InitVal->getAsString(); |
| O << ", cl::init(" << str << ')'; |
| } |
| |
| if (!val.Help.empty()) |
| O << ", cl::desc(\"" << val.Help << "\")"; |
| |
| O << ");\n\n"; |
| } |
| |
| // Emit the aliases (they should go after all the 'proper' options). |
| for (std::vector<OptionDescription>::const_iterator |
| B = Aliases.begin(), E = Aliases.end(); B != E; ++B) { |
| const OptionDescription& val = *B; |
| |
| O << val.GenTypeDeclaration() << ' ' |
| << val.GenVariableName() |
| << "(\"" << val.Name << '\"'; |
| |
| const OptionDescription& D = descs.FindOption(val.Help); |
| O << ", cl::aliasopt(" << D.GenVariableName() << ")"; |
| |
| O << ", cl::desc(\"" << "An alias for -" + val.Help << "\"));\n"; |
| } |
| |
| // Emit the sink option. |
| if (HasSink) |
| O << "cl" << "::list<std::string> " << SinkOptionName << "(cl::Sink);\n"; |
| |
| O << '\n'; |
| } |
| |
| /// EmitPreprocessOptionsCallback - Helper function passed to |
| /// EmitCaseConstructHandler() by EmitPreprocessOptions(). |
| |
| class EmitPreprocessOptionsCallback; |
| |
| typedef void |
| (EmitPreprocessOptionsCallback::* EmitPreprocessOptionsCallbackHandler) |
| (const DagInit&, unsigned, raw_ostream&) const; |
| |
| class EmitPreprocessOptionsCallback : |
| public ActionHandlingCallbackBase, |
| public HandlerTable<EmitPreprocessOptionsCallbackHandler> |
| { |
| typedef EmitPreprocessOptionsCallbackHandler Handler; |
| typedef void |
| (EmitPreprocessOptionsCallback::* HandlerImpl) |
| (const Init*, unsigned, raw_ostream&) const; |
| |
| const OptionDescriptions& OptDescs_; |
| |
| void onListOrDag(const DagInit& d, HandlerImpl h, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(d, 1); |
| const Init* I = d.getArg(0); |
| |
| // If I is a list, apply h to each element. |
| if (typeid(*I) == typeid(ListInit)) { |
| const ListInit& L = *static_cast<const ListInit*>(I); |
| for (ListInit::const_iterator B = L.begin(), E = L.end(); B != E; ++B) |
| ((this)->*(h))(*B, IndentLevel, O); |
| } |
| // Otherwise, apply h to I. |
| else { |
| ((this)->*(h))(I, IndentLevel, O); |
| } |
| } |
| |
| void onUnsetOptionImpl(const Init* I, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| const std::string& OptName = InitPtrToString(I); |
| const OptionDescription& OptDesc = OptDescs_.FindOption(OptName); |
| |
| if (OptDesc.isSwitch()) { |
| O.indent(IndentLevel) << OptDesc.GenVariableName() << " = false;\n"; |
| } |
| else if (OptDesc.isParameter()) { |
| O.indent(IndentLevel) << OptDesc.GenVariableName() << " = \"\";\n"; |
| } |
| else if (OptDesc.isList()) { |
| O.indent(IndentLevel) << OptDesc.GenVariableName() << ".clear();\n"; |
| } |
| else { |
| throw "Can't apply 'unset_option' to alias option '" + OptName + "'!"; |
| } |
| } |
| |
| void onUnsetOption(const DagInit& d, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| this->onListOrDag(d, &EmitPreprocessOptionsCallback::onUnsetOptionImpl, |
| IndentLevel, O); |
| } |
| |
| void onSetOptionImpl(const DagInit& d, |
| unsigned IndentLevel, raw_ostream& O) const { |
| CheckNumberOfArguments(d, 2); |
| const std::string& OptName = InitPtrToString(d.getArg(0)); |
| const Init* Value = d.getArg(1); |
| const OptionDescription& OptDesc = OptDescs_.FindOption(OptName); |
| |
| if (OptDesc.isList()) { |
| const ListInit& List = InitPtrToList(Value); |
| |
| O.indent(IndentLevel) << OptDesc.GenVariableName() << ".clear();\n"; |
| for (ListInit::const_iterator B = List.begin(), E = List.end(); |
| B != E; ++B) { |
| const Init* CurElem = *B; |
| if (OptDesc.isSwitchList()) |
| CheckBooleanConstant(CurElem); |
| |
| O.indent(IndentLevel) |
| << OptDesc.GenVariableName() << ".push_back(\"" |
| << (OptDesc.isSwitchList() ? CurElem->getAsString() |
| : InitPtrToString(CurElem)) |
| << "\");\n"; |
| } |
| } |
| else if (OptDesc.isSwitch()) { |
| CheckBooleanConstant(Value); |
| O.indent(IndentLevel) << OptDesc.GenVariableName() |
| << " = " << Value->getAsString() << ";\n"; |
| } |
| else if (OptDesc.isParameter()) { |
| const std::string& Str = InitPtrToString(Value); |
| O.indent(IndentLevel) << OptDesc.GenVariableName() |
| << " = \"" << Str << "\";\n"; |
| } |
| else { |
| throw "Can't apply 'set_option' to alias option -" + OptName + " !"; |
| } |
| } |
| |
| void onSetSwitch(const Init* I, |
| unsigned IndentLevel, raw_ostream& O) const { |
| const std::string& OptName = InitPtrToString(I); |
| const OptionDescription& OptDesc = OptDescs_.FindOption(OptName); |
| |
| if (OptDesc.isSwitch()) |
| O.indent(IndentLevel) << OptDesc.GenVariableName() << " = true;\n"; |
| else |
| throw "set_option: -" + OptName + " is not a switch option!"; |
| } |
| |
| void onSetOption(const DagInit& d, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| CheckNumberOfArguments(d, 1); |
| |
| // Two arguments: (set_option "parameter", VALUE), where VALUE can be a |
| // boolean, a string or a string list. |
| if (d.getNumArgs() > 1) |
| this->onSetOptionImpl(d, IndentLevel, O); |
| // One argument: (set_option "switch") |
| // or (set_option ["switch1", "switch2", ...]) |
| else |
| this->onListOrDag(d, &EmitPreprocessOptionsCallback::onSetSwitch, |
| IndentLevel, O); |
| } |
| |
| public: |
| |
| EmitPreprocessOptionsCallback(const OptionDescriptions& OptDescs) |
| : OptDescs_(OptDescs) |
| { |
| if (!staticMembersInitialized_) { |
| AddHandler("error", &EmitPreprocessOptionsCallback::onErrorDag); |
| AddHandler("warning", &EmitPreprocessOptionsCallback::onWarningDag); |
| AddHandler("unset_option", &EmitPreprocessOptionsCallback::onUnsetOption); |
| AddHandler("set_option", &EmitPreprocessOptionsCallback::onSetOption); |
| |
| staticMembersInitialized_ = true; |
| } |
| } |
| |
| void operator()(const Init* I, |
| unsigned IndentLevel, raw_ostream& O) const |
| { |
| InvokeDagInitHandler(this, I, IndentLevel, O); |
| } |
| |
| }; |
| |
| /// EmitPreprocessOptions - Emit the PreprocessOptions() function. |
| void EmitPreprocessOptions (const RecordKeeper& Records, |
| const OptionDescriptions& OptDecs, raw_ostream& O) |
| { |
| O << "int PreprocessOptions () {\n"; |
| |
| const RecordVector& OptionPreprocessors = |
| Records.getAllDerivedDefinitions("OptionPreprocessor"); |
| |
| for (RecordVector::const_iterator B = OptionPreprocessors.begin(), |
| E = OptionPreprocessors.end(); B!=E; ++B) { |
| DagInit* Case = (*B)->getValueAsDag("preprocessor"); |
| EmitCaseConstructHandler(Case, Indent1, |
| EmitPreprocessOptionsCallback(OptDecs), |
| false, OptDecs, O); |
| } |
| |
| O << '\n'; |
| O.indent(Indent1) << "return 0;\n"; |
| O << "}\n\n"; |
| } |
| |
| /// EmitPopulateLanguageMap - Emit the PopulateLanguageMap() function. |
| void EmitPopulateLanguageMap (const RecordKeeper& Records, raw_ostream& O) |
| { |
| O << "int PopulateLanguageMap (LanguageMap& langMap) {\n"; |
| |
| // Get the relevant field out of RecordKeeper |
| // TODO: change this to getAllDerivedDefinitions. |
| const Record* LangMapRecord = Records.getDef("LanguageMap"); |
| |
| // It is allowed for a plugin to have no language map. |
| if (LangMapRecord) { |
| |
| ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map"); |
| if (!LangsToSuffixesList) |
| throw "Error in the language map definition!"; |
| |
| for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) { |
| const Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i); |
| |
| const std::string& Lang = LangToSuffixes->getValueAsString("lang"); |
| const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes"); |
| |
| for (unsigned i = 0; i < Suffixes->size(); ++i) |
| O.indent(Indent1) << "langMap[\"" |
| << InitPtrToString(Suffixes->getElement(i)) |
| << "\"] = \"" << Lang << "\";\n"; |
| } |
| } |
| |
| O << '\n'; |
| O.indent(Indent1) << "return 0;\n"; |
| O << "}\n\n"; |
| } |
| |
| /// IncDecWeight - Helper function passed to EmitCaseConstructHandler() |
| /// by EmitEdgeClass(). |
| void IncDecWeight (const Init* i, unsigned IndentLevel, |
| raw_ostream& O) { |
| const DagInit& d = InitPtrToDag(i); |
| const std::string& OpName = GetOperatorName(d); |
| |
| if (OpName == "inc_weight") { |
| O.indent(IndentLevel) << "ret += "; |
| } |
| else if (OpName == "dec_weight") { |
| O.indent(IndentLevel) << "ret -= "; |
| } |
| else if (OpName == "error") { |
| // TODO: fix this |
| CheckNumberOfArguments(d, 1); |
| O.indent(IndentLevel) << "PrintError(\"" |
| << InitPtrToString(d.getArg(0)) |
| << "\");\n"; |
| O.indent(IndentLevel) << "return -1;\n"; |
| return; |
| } |
| else { |
| throw "Unknown operator in edge properties list: '" + OpName + "'!" |
| "\nOnly 'inc_weight', 'dec_weight' and 'error' are allowed."; |
| } |
| |
| if (d.getNumArgs() > 0) |
| O << InitPtrToInt(d.getArg(0)) << ";\n"; |
| else |
| O << "2;\n"; |
| |
| } |
| |
| /// EmitEdgeClass - Emit a single Edge# class. |
| void EmitEdgeClass (unsigned N, const std::string& Target, |
| DagInit* Case, const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| |
| // Class constructor. |
| O << "class Edge" << N << ": public Edge {\n" |
| << "public:\n"; |
| O.indent(Indent1) << "Edge" << N << "() : Edge(\"" << Target |
| << "\") {}\n\n"; |
| |
| // Function Weight(). |
| O.indent(Indent1) |
| << "unsigned Weight(const InputLanguagesSet& InLangs) const {\n"; |
| O.indent(Indent2) << "unsigned ret = 0;\n"; |
| |
| // Handle the 'case' construct. |
| EmitCaseConstructHandler(Case, Indent2, IncDecWeight, false, OptDescs, O); |
| |
| O.indent(Indent2) << "return ret;\n"; |
| O.indent(Indent1) << "}\n\n};\n\n"; |
| } |
| |
| /// EmitEdgeClasses - Emit Edge* classes that represent graph edges. |
| void EmitEdgeClasses (const RecordVector& EdgeVector, |
| const OptionDescriptions& OptDescs, |
| raw_ostream& O) { |
| int i = 0; |
| for (RecordVector::const_iterator B = EdgeVector.begin(), |
| E = EdgeVector.end(); B != E; ++B) { |
| const Record* Edge = *B; |
| const std::string& NodeB = Edge->getValueAsString("b"); |
| DagInit& Weight = *Edge->getValueAsDag("weight"); |
| |
| if (!IsDagEmpty(Weight)) |
| EmitEdgeClass(i, NodeB, &Weight, OptDescs, O); |
| ++i; |
| } |
| } |
| |
| /// EmitPopulateCompilationGraph - Emit the PopulateCompilationGraph() function. |
| void EmitPopulateCompilationGraph (const RecordVector& EdgeVector, |
| const ToolDescriptions& ToolDescs, |
| raw_ostream& O) |
| { |
| O << "int PopulateCompilationGraph (CompilationGraph& G) {\n"; |
| |
| for (ToolDescriptions::const_iterator B = ToolDescs.begin(), |
| E = ToolDescs.end(); B != E; ++B) |
| O.indent(Indent1) << "G.insertNode(new " << (*B)->Name << "());\n"; |
| |
| O << '\n'; |
| |
| // Insert edges. |
| |
| int i = 0; |
| for (RecordVector::const_iterator B = EdgeVector.begin(), |
| E = EdgeVector.end(); B != E; ++B) { |
| const Record* Edge = *B; |
| const std::string& NodeA = Edge->getValueAsString("a"); |
| const std::string& NodeB = Edge->getValueAsString("b"); |
| DagInit& Weight = *Edge->getValueAsDag("weight"); |
| |
| O.indent(Indent1) << "if (int ret = G.insertEdge(\"" << NodeA << "\", "; |
| |
| if (IsDagEmpty(Weight)) |
| O << "new SimpleEdge(\"" << NodeB << "\")"; |
| else |
| O << "new Edge" << i << "()"; |
| |
| O << "))\n"; |
| O.indent(Indent2) << "return ret;\n"; |
| |
| ++i; |
| } |
| |
| O << '\n'; |
| O.indent(Indent1) << "return 0;\n"; |
| O << "}\n\n"; |
| } |
| |
| /// HookInfo - Information about the hook type and number of arguments. |
| struct HookInfo { |
| |
| // A hook can either have a single parameter of type std::vector<std::string>, |
| // or NumArgs parameters of type const char*. |
| enum HookType { ListHook, ArgHook }; |
| |
| HookType Type; |
| unsigned NumArgs; |
| |
| HookInfo() : Type(ArgHook), NumArgs(1) |
| {} |
| |
| HookInfo(HookType T) : Type(T), NumArgs(1) |
| {} |
| |
| HookInfo(unsigned N) : Type(ArgHook), NumArgs(N) |
| {} |
| }; |
| |
| typedef llvm::StringMap<HookInfo> HookInfoMap; |
| |
| /// ExtractHookNames - Extract the hook names from all instances of |
| /// $CALL(HookName) in the provided command line string/action. Helper |
| /// function used by FillInHookNames(). |
| class ExtractHookNames { |
| HookInfoMap& HookNames_; |
| const OptionDescriptions& OptDescs_; |
| public: |
| ExtractHookNames(HookInfoMap& HookNames, const OptionDescriptions& OptDescs) |
| : HookNames_(HookNames), OptDescs_(OptDescs) |
| {} |
| |
| void onAction (const DagInit& Dag) { |
| const std::string& Name = GetOperatorName(Dag); |
| |
| if (Name == "forward_transformed_value") { |
| CheckNumberOfArguments(Dag, 2); |
| const std::string& OptName = InitPtrToString(Dag.getArg(0)); |
| const std::string& HookName = InitPtrToString(Dag.getArg(1)); |
| const OptionDescription& D = |
| OptDescs_.FindParameterListOrParameter(OptName); |
| |
| HookNames_[HookName] = HookInfo(D.isList() ? HookInfo::ListHook |
| : HookInfo::ArgHook); |
| } |
| else if (Name == "append_cmd" || Name == "output_suffix") { |
| CheckNumberOfArguments(Dag, 1); |
| this->onCmdLine(InitPtrToString(Dag.getArg(0))); |
| } |
| } |
| |
| void onCmdLine(const std::string& Cmd) { |
| StrVector cmds; |
| TokenizeCmdLine(Cmd, cmds); |
| |
| for (StrVector::const_iterator B = cmds.begin(), E = cmds.end(); |
| B != E; ++B) { |
| const std::string& cmd = *B; |
| |
| if (cmd == "$CALL") { |
| unsigned NumArgs = 0; |
| CheckedIncrement(B, E, "Syntax error in $CALL invocation!"); |
| const std::string& HookName = *B; |
| |
| if (HookName.at(0) == ')') |
| throw "$CALL invoked with no arguments!"; |
| |
| while (++B != E && B->at(0) != ')') { |
| ++NumArgs; |
| } |
| |
| HookInfoMap::const_iterator H = HookNames_.find(HookName); |
| |
| if (H != HookNames_.end() && H->second.NumArgs != NumArgs && |
| H->second.Type != HookInfo::ArgHook) |
| throw "Overloading of hooks is not allowed. Overloaded hook: " |
| + HookName; |
| else |
| HookNames_[HookName] = HookInfo(NumArgs); |
| } |
| } |
| } |
| |
| void operator()(const Init* Arg) { |
| |
| // We're invoked on an action (either a dag or a dag list). |
| if (typeid(*Arg) == typeid(DagInit)) { |
| const DagInit& Dag = InitPtrToDag(Arg); |
| this->onAction(Dag); |
| return; |
| } |
| else if (typeid(*Arg) == typeid(ListInit)) { |
| const ListInit& List = InitPtrToList(Arg); |
| for (ListInit::const_iterator B = List.begin(), E = List.end(); B != E; |
| ++B) { |
| const DagInit& Dag = InitPtrToDag(*B); |
| this->onAction(Dag); |
| } |
| return; |
| } |
| |
| // We're invoked on a command line. |
| this->onCmdLine(InitPtrToString(Arg)); |
| } |
| |
| void operator()(const DagInit* Test, unsigned, bool) { |
| this->operator()(Test); |
| } |
| void operator()(const Init* Statement, unsigned) { |
| this->operator()(Statement); |
| } |
| }; |
| |
| /// FillInHookNames - Actually extract the hook names from all command |
| /// line strings. Helper function used by EmitHookDeclarations(). |
| void FillInHookNames(const ToolDescriptions& ToolDescs, |
| const OptionDescriptions& OptDescs, |
| HookInfoMap& HookNames) |
| { |
| // For all tool descriptions: |
| for (ToolDescriptions::const_iterator B = ToolDescs.begin(), |
| E = ToolDescs.end(); B != E; ++B) { |
| const ToolDescription& D = *(*B); |
| |
| // Look for 'forward_transformed_value' in 'actions'. |
| if (D.Actions) |
| WalkCase(D.Actions, Id(), ExtractHookNames(HookNames, OptDescs)); |
| |
| // Look for hook invocations in 'cmd_line'. |
| if (!D.CmdLine) |
| continue; |
| if (dynamic_cast<StringInit*>(D.CmdLine)) |
| // This is a string. |
| ExtractHookNames(HookNames, OptDescs).operator()(D.CmdLine); |
| else |
| // This is a 'case' construct. |
| WalkCase(D.CmdLine, Id(), ExtractHookNames(HookNames, OptDescs)); |
| } |
| } |
| |
| /// EmitHookDeclarations - Parse CmdLine fields of all the tool |
| /// property records and emit hook function declaration for each |
| /// instance of $CALL(HookName). |
| void EmitHookDeclarations(const ToolDescriptions& ToolDescs, |
| const OptionDescriptions& OptDescs, raw_ostream& O) { |
| HookInfoMap HookNames; |
| |
| FillInHookNames(ToolDescs, OptDescs, HookNames); |
| if (HookNames.empty()) |
| return; |
| |
| O << "namespace hooks {\n"; |
| for (HookInfoMap::const_iterator B = HookNames.begin(), |
| E = HookNames.end(); B != E; ++B) { |
| const char* HookName = B->first(); |
| const HookInfo& Info = B->second; |
| |
| O.indent(Indent1) << "std::string " << HookName << "("; |
| |
| if (Info.Type == HookInfo::ArgHook) { |
| for (unsigned i = 0, j = Info.NumArgs; i < j; ++i) { |
| O << "const char* Arg" << i << (i+1 == j ? "" : ", "); |
| } |
| } |
| else { |
| O << "const std::vector<std::string>& Arg"; |
| } |
| |
| O <<");\n"; |
| } |
| O << "}\n\n"; |
| } |
| |
| /// EmitIncludes - Emit necessary #include directives and some |
| /// additional declarations. |
| void EmitIncludes(raw_ostream& O) { |
| O << "#include \"llvm/CompilerDriver/BuiltinOptions.h\"\n" |
| << "#include \"llvm/CompilerDriver/CompilationGraph.h\"\n" |
| << "#include \"llvm/CompilerDriver/Error.h\"\n" |
| << "#include \"llvm/CompilerDriver/Tool.h\"\n\n" |
| |
| << "#include \"llvm/Support/CommandLine.h\"\n" |
| << "#include \"llvm/Support/raw_ostream.h\"\n\n" |
| |
| << "#include <algorithm>\n" |
| << "#include <cstdlib>\n" |
| << "#include <iterator>\n" |
| << "#include <stdexcept>\n\n" |
| |
| << "using namespace llvm;\n" |
| << "using namespace llvmc;\n\n" |
| |
| << "extern cl::opt<std::string> OutputFilename;\n\n" |
| |
| << "inline const char* checkCString(const char* s)\n" |
| << "{ return s == NULL ? \"\" : s; }\n\n"; |
| } |
| |
| |
| /// PluginData - Holds all information about a plugin. |
| struct PluginData { |
| OptionDescriptions OptDescs; |
| bool HasSink; |
| ToolDescriptions ToolDescs; |
| RecordVector Edges; |
| }; |
| |
| /// HasSink - Go through the list of tool descriptions and check if |
| /// there are any with the 'sink' property set. |
| bool HasSink(const ToolDescriptions& ToolDescs) { |
| for (ToolDescriptions::const_iterator B = ToolDescs.begin(), |
| E = ToolDescs.end(); B != E; ++B) |
| if ((*B)->isSink()) |
| return true; |
| |
| return false; |
| } |
| |
| /// CollectPluginData - Collect compilation graph edges, tool properties and |
| /// option properties from the parse tree. |
| void CollectPluginData (const RecordKeeper& Records, PluginData& Data) { |
| // Collect option properties. |
| const RecordVector& OptionLists = |
| Records.getAllDerivedDefinitions("OptionList"); |
| CollectOptionDescriptions(OptionLists.begin(), OptionLists.end(), |
| Data.OptDescs); |
| |
| // Collect tool properties. |
| const RecordVector& Tools = Records.getAllDerivedDefinitions("Tool"); |
| CollectToolDescriptions(Tools.begin(), Tools.end(), Data.ToolDescs); |
| Data.HasSink = HasSink(Data.ToolDescs); |
| |
| // Collect compilation graph edges. |
| const RecordVector& CompilationGraphs = |
| Records.getAllDerivedDefinitions("CompilationGraph"); |
| FillInEdgeVector(CompilationGraphs.begin(), CompilationGraphs.end(), |
| Data.Edges); |
| } |
| |
| /// CheckPluginData - Perform some sanity checks on the collected data. |
| void CheckPluginData(PluginData& Data) { |
| // Filter out all tools not mentioned in the compilation graph. |
| FilterNotInGraph(Data.Edges, Data.ToolDescs); |
| |
| // Typecheck the compilation graph. |
| TypecheckGraph(Data.Edges, Data.ToolDescs); |
| |
| // Check that there are no options without side effects (specified |
| // only in the OptionList). |
| CheckForSuperfluousOptions(Data.Edges, Data.ToolDescs, Data.OptDescs); |
| } |
| |
| void EmitPluginCode(const PluginData& Data, raw_ostream& O) { |
| // Emit file header. |
| EmitIncludes(O); |
| |
| // Emit global option registration code. |
| EmitOptionDefinitions(Data.OptDescs, Data.HasSink, O); |
| |
| // Emit hook declarations. |
| EmitHookDeclarations(Data.ToolDescs, Data.OptDescs, O); |
| |
| O << "namespace {\n\n"; |
| |
| // Emit Tool classes. |
| for (ToolDescriptions::const_iterator B = Data.ToolDescs.begin(), |
| E = Data.ToolDescs.end(); B!=E; ++B) |
| EmitToolClassDefinition(*(*B), Data.OptDescs, O); |
| |
| // Emit Edge# classes. |
| EmitEdgeClasses(Data.Edges, Data.OptDescs, O); |
| |
| O << "} // End anonymous namespace.\n\n"; |
| |
| O << "namespace llvmc {\n"; |
| O << "namespace autogenerated {\n\n"; |
| |
| // Emit PreprocessOptions() function. |
| EmitPreprocessOptions(Records, Data.OptDescs, O); |
| |
| // Emit PopulateLanguageMap() function |
| // (language map maps from file extensions to language names). |
| EmitPopulateLanguageMap(Records, O); |
| |
| // Emit PopulateCompilationGraph() function. |
| EmitPopulateCompilationGraph(Data.Edges, Data.ToolDescs, O); |
| |
| O << "} // End namespace autogenerated.\n"; |
| O << "} // End namespace llvmc.\n\n"; |
| |
| // EOF |
| } |
| |
| |
| // End of anonymous namespace |
| } |
| |
| /// run - The back-end entry point. |
| void LLVMCConfigurationEmitter::run (raw_ostream &O) { |
| try { |
| PluginData Data; |
| |
| CollectPluginData(Records, Data); |
| CheckPluginData(Data); |
| |
| this->EmitSourceFileHeader("LLVMC Configuration Library", O); |
| EmitPluginCode(Data, O); |
| |
| } catch (std::exception& Error) { |
| throw Error.what() + std::string(" - usually this means a syntax error."); |
| } |
| } |