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Move binpac code into the main Zeek repository

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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
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59
tools/binpac/src/pac_withinput.cc Normal file
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#include "pac_withinput.h"
#include "pac_dataptr.h"
#include "pac_expr.h"
#include "pac_inputbuf.h"
#include "pac_output.h"
#include "pac_type.h"
WithInputField::WithInputField(ID* id, Type* type, InputBuffer* input)
: Field(WITHINPUT_FIELD, TYPE_TO_BE_PARSED | CLASS_MEMBER | PUBLIC_READABLE, id, type), input_(input) {
ASSERT(type_);
ASSERT(input_);
}
WithInputField::~WithInputField() { delete input_; }
bool WithInputField::DoTraverse(DataDepVisitor* visitor) {
return Field::DoTraverse(visitor) && input()->Traverse(visitor);
}
bool WithInputField::RequiresAnalyzerContext() const {
return Field::RequiresAnalyzerContext() || (input() && input()->RequiresAnalyzerContext());
}
void WithInputField::Prepare(Env* env) {
Field::Prepare(env);
env->SetEvalMethod(id_, this);
}
void WithInputField::GenEval(Output* out_cc, Env* env) {
GenParseCode(out_cc, env);
if ( type_->attr_if_expr() ) {
out_cc->println("BINPAC_ASSERT(%s);", env->RValue(type_->has_value_var()));
}
}
void WithInputField::GenParseCode(Output* out_cc, Env* env) {
out_cc->println("// Parse \"%s\"", id_->Name());
if ( type_->attr_if_expr() ) {
// A conditional field
env->Evaluate(out_cc, type_->has_value_var());
out_cc->println("if ( %s ) {", env->RValue(type_->has_value_var()));
out_cc->inc_indent();
}
else
out_cc->println("{");
Env field_env(env, this);
ASSERT(! type_->incremental_input());
type_->GenPreParsing(out_cc, &field_env);
type_->GenParseCode(out_cc, &field_env, input()->GenDataBeginEnd(out_cc, &field_env), 0);
if ( type_->attr_if_expr() ) {
out_cc->dec_indent();
out_cc->println("}");
}
else
out_cc->println("}");
}