Move binpac code into the main Zeek repository

This is based on commit 48f75b5f6415fe9d597e3e991cec635b1bc400dc from
the binpac repository.
This commit is contained in:
Tim Wojtulewicz 2025-08-04 13:49:52 -07:00
parent a2680d5eca
commit ff26835976
112 changed files with 14586 additions and 8 deletions

View file

@ -0,0 +1,263 @@
#include "pac_analyzer.h"
#include "pac_action.h"
#include "pac_context.h"
#include "pac_embedded.h"
#include "pac_exception.h"
#include "pac_expr.h"
#include "pac_flow.h"
#include "pac_func.h"
#include "pac_output.h"
#include "pac_param.h"
#include "pac_paramtype.h"
#include "pac_state.h"
#include "pac_type.h"
#include "pac_varfield.h"
AnalyzerDecl::AnalyzerDecl(ID* id, DeclType decl_type, ParamList* params) : TypeDecl(id, params, new DummyType()) {
decl_type_ = decl_type;
statevars_ = new StateVarList();
actions_ = new AnalyzerActionList();
helpers_ = new AnalyzerHelperList();
functions_ = new FunctionList();
constructor_helpers_ = new AnalyzerHelperList();
destructor_helpers_ = new AnalyzerHelperList();
eof_helpers_ = new AnalyzerHelperList();
SetAnalyzerContext();
env_ = nullptr;
}
AnalyzerDecl::~AnalyzerDecl() {
delete_list(StateVarList, statevars_);
delete_list(AnalyzerActionList, actions_);
delete_list(AnalyzerHelperList, helpers_);
delete_list(FunctionList, functions_);
delete_list(ParamList, params_);
delete_list(AnalyzerHelperList, constructor_helpers_);
delete_list(AnalyzerHelperList, destructor_helpers_);
delete_list(AnalyzerHelperList, eof_helpers_);
}
void AnalyzerDecl::AddElements(AnalyzerElementList* elemlist) {
ASSERT(! env_);
foreach (i, AnalyzerElementList, elemlist) {
AnalyzerElement* elem = *i;
switch ( elem->type() ) {
case AnalyzerElement::STATE: {
ASSERT(0);
AnalyzerState* state_elem = (AnalyzerState*)elem;
statevars_->insert(statevars_->end(), state_elem->statevars()->begin(), state_elem->statevars()->end());
} break;
case AnalyzerElement::ACTION: {
ASSERT(0);
AnalyzerAction* action_elem = (AnalyzerAction*)elem;
actions_->push_back(action_elem);
} break;
case AnalyzerElement::HELPER: {
AnalyzerHelper* helper_elem = (AnalyzerHelper*)elem;
switch ( helper_elem->helper_type() ) {
case AnalyzerHelper::INIT_CODE: constructor_helpers_->push_back(helper_elem); break;
case AnalyzerHelper::CLEANUP_CODE: destructor_helpers_->push_back(helper_elem); break;
case AnalyzerHelper::EOF_CODE: eof_helpers_->push_back(helper_elem); break;
default: helpers_->push_back(helper_elem);
}
} break;
case AnalyzerElement::FUNCTION: {
AnalyzerFunction* func_elem = (AnalyzerFunction*)elem;
Function* func = func_elem->function();
func->set_analyzer_decl(this);
functions_->push_back(func);
} break;
case AnalyzerElement::FLOW: {
AnalyzerFlow* flow_elem = (AnalyzerFlow*)elem;
ProcessFlowElement(flow_elem);
} break;
case AnalyzerElement::DATAUNIT: {
AnalyzerDataUnit* dataunit_elem = (AnalyzerDataUnit*)elem;
ProcessDataUnitElement(dataunit_elem);
} break;
}
}
}
string AnalyzerDecl::class_name() const { return id_->Name(); }
void AnalyzerDecl::Prepare() {
TypeDecl::Prepare();
ASSERT(statevars_->empty());
ASSERT(actions_->empty());
foreach (i, FunctionList, functions_) {
Function* function = *i;
function->Prepare(env_);
}
foreach (i, StateVarList, statevars_) {
StateVar* statevar = *i;
env_->AddID(statevar->id(), STATE_VAR, statevar->type());
}
foreach (i, AnalyzerActionList, actions_) {
AnalyzerAction* action = *i;
action->InstallHook(this);
}
}
void AnalyzerDecl::GenForwardDeclaration(Output* out_h) {
out_h->println("class %s;", class_name().c_str());
foreach (i, FunctionList, functions_) {
Function* function = *i;
function->GenForwardDeclaration(out_h);
}
}
void AnalyzerDecl::GenActions(Output* out_h, Output* out_cc) {
foreach (i, AnalyzerActionList, actions_) {
(*i)->GenCode(out_h, out_cc, this);
}
}
void AnalyzerDecl::GenHelpers(Output* out_h, Output* out_cc) {
foreach (i, AnalyzerHelperList, helpers_) {
(*i)->GenCode(out_h, out_cc, this);
}
}
void AnalyzerDecl::GenPubDecls(Output* out_h, Output* out_cc) {
TypeDecl::GenPubDecls(out_h, out_cc);
GenProcessFunc(out_h, out_cc);
GenGapFunc(out_h, out_cc);
GenEOFFunc(out_h, out_cc);
out_h->println("");
if ( ! functions_->empty() ) {
out_h->println("// Functions");
GenFunctions(out_h, out_cc);
out_h->println("");
}
// TODO: export public state variables
}
void AnalyzerDecl::GenPrivDecls(Output* out_h, Output* out_cc) {
TypeDecl::GenPrivDecls(out_h, out_cc);
if ( ! helpers_->empty() ) {
out_h->println("");
out_h->println("// Additional members");
GenHelpers(out_h, out_cc);
}
// TODO: declare state variables
}
void AnalyzerDecl::GenInitCode(Output* out_cc) {
TypeDecl::GenInitCode(out_cc);
foreach (i, AnalyzerHelperList, constructor_helpers_) {
(*i)->GenCode(nullptr, out_cc, this);
}
}
void AnalyzerDecl::GenCleanUpCode(Output* out_cc) {
TypeDecl::GenCleanUpCode(out_cc);
foreach (i, AnalyzerHelperList, destructor_helpers_) {
(*i)->GenCode(nullptr, out_cc, this);
}
}
void AnalyzerDecl::GenStateVarDecls(Output* out_h) {
foreach (i, StateVarList, statevars_) {
StateVar* var = *i;
var->GenDecl(out_h, env_);
}
}
void AnalyzerDecl::GenStateVarSetFunctions(Output* out_h) {
foreach (i, StateVarList, statevars_) {
StateVar* var = *i;
var->GenSetFunction(out_h, env_);
}
}
void AnalyzerDecl::GenStateVarInitCode(Output* out_cc) {
foreach (i, StateVarList, statevars_) {
StateVar* var = *i;
var->GenInitCode(out_cc, env_);
}
}
void AnalyzerDecl::GenStateVarCleanUpCode(Output* out_cc) {
foreach (i, StateVarList, statevars_) {
StateVar* var = *i;
var->GenCleanUpCode(out_cc, env_);
}
}
void AnalyzerDecl::GenFunctions(Output* out_h, Output* out_cc) {
foreach (i, FunctionList, functions_) {
Function* function = *i;
function->GenCode(out_h, out_cc);
}
}
AnalyzerState::~AnalyzerState() {
// Note: do not delete elements of statevars_, because they
// are referenced by the AnalyzerDecl.
delete statevars_;
}
AnalyzerHelper::~AnalyzerHelper() { delete code_; }
void AnalyzerHelper::GenCode(Output* out_h, Output* out_cc, AnalyzerDecl* decl) {
Output* out = nullptr;
switch ( helper_type_ ) {
case MEMBER_DECLS: out = out_h; break;
case INIT_CODE:
case CLEANUP_CODE:
case EOF_CODE: out = out_cc; break;
}
ASSERT(out);
code()->GenCode(out, decl->env());
}
FlowField::FlowField(ID* flow_id, ParameterizedType* flow_type)
: Field(FLOW_FIELD, TYPE_NOT_TO_BE_PARSED | CLASS_MEMBER | PUBLIC_READABLE, flow_id, flow_type) {}
void FlowField::GenInitCode(Output* out_cc, Env* env) { type_->GenPreParsing(out_cc, env); }
AnalyzerFlow::AnalyzerFlow(Direction dir, ID* type_id, ExprList* params)
: AnalyzerElement(FLOW), dir_(dir), type_id_(type_id) {
if ( ! params )
params = new ExprList();
// Add "this" to the list of params
params->insert(params->begin(), new Expr(this_id->clone()));
ID* flow_id = ((dir == UP) ? upflow_id : downflow_id)->clone();
ParameterizedType* flow_type = new ParameterizedType(type_id_, params);
flow_field_ = new FlowField(flow_id, flow_type);
flow_decl_ = nullptr;
}
AnalyzerFlow::~AnalyzerFlow() { delete flow_field_; }
FlowDecl* AnalyzerFlow::flow_decl() {
DEBUG_MSG("Getting flow_decl for %s\n", type_id_->Name());
if ( ! flow_decl_ ) {
Decl* decl = Decl::LookUpDecl(type_id_);
if ( decl && decl->decl_type() == Decl::FLOW )
flow_decl_ = static_cast<FlowDecl*>(decl);
if ( ! flow_decl_ ) {
throw Exception(this, "cannot find the flow declaration");
}
}
return flow_decl_;
}