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#include "../pgf.h"
#include "data.h"
#include "panic.h"
#include <stdlib.h>
static void freeCId(CId id) {
free(id);
}
static void freeCIdList(CIdList ids) {
int i;
for (i = 0; i < ids->count; i++) {
freeCId(ids->names[i]);
}
free(ids);
}
static void freeString(String str) {
free(str);
}
static void freeLiteral(Literal lit) {
switch (lit->tag) {
case LIT_STR:
freeString (((LiteralStr) lit)->val);
break;
}
free(lit);
}
static void freeFlags(Flags flags) {
int i;
for (i = 0; i < flags->count; i++) {
freeCId(flags->values[i].name);
freeLiteral(flags->values[i].value);
}
free(flags);
}
static void freeContext(Context ctxt);
static void freeType(Type ty);
static void freeExpr(Expr e0) {
switch (e0->tag) {
case TAG_ABS:
{
ExprAbs e = (ExprAbs) e0;
freeCId(e->var);
freeExpr(e->body);
}
break;
case TAG_APP:
{
ExprApp e = (ExprApp) e0;
freeExpr(e->left);
freeExpr(e->right);
}
break;
case TAG_LIT:
{
ExprLit e = (ExprLit) e0;
freeLiteral(e->lit);
}
break;
case TAG_MET:
{
ExprMeta e = (ExprMeta) e0;
}
break;
case TAG_FUN:
{
ExprFun e = (ExprFun) e0;
freeCId(e->fun);
}
break;
case TAG_VAR:
{
ExprVar e = (ExprVar) e0;
}
break;
case TAG_TYP:
{
ExprTyped e = (ExprTyped) e0;
freeExpr(e->e);
freeType(e->ty);
}
break;
case TAG_IMP:
{
ExprImplArg e = (ExprImplArg) e0;
freeExpr(e->e);
}
break;
default:
__pgf_panic("Unknown expression tag");
}
free(e0);
}
static void freeType(Type ty) {
freeContext(ty->hypos);
freeCId(ty->cat);
int i;
for (i = 0; i < ty->nArgs; i++) {
freeExpr(ty->args[i]);
}
free(ty);
}
static void freeHypo(Hypo hypo) {
freeCId(hypo->var);
freeType(hypo->ty);
}
static void freeContext(Context ctxt) {
int i;
for (i = 0; i < ctxt->size; i++) {
freeHypo(&ctxt->hypos[i]);
}
free(ctxt);
}
static void freePatt(Patt p0) {
switch (p0->tag) {
case TAG_PAPP:
{
int i;
PattApp p = (PattApp) p0;
freeCId(p->fun);
for (i = 0; i < p->args.count; i++) {
freePatt(p->args.pats[i]);
}
}
break;
case TAG_PVAR:
{
PattVar p = (PattVar) p0;
freeCId(p->var);
}
break;
case TAG_PAT:
{
PattAt p = (PattAt) p0;
freeCId(p->var);
freePatt(p->pat);
}
break;
case TAG_PWILD:
{
PattWild p = (PattWild) p0;
}
break;
case TAG_PLIT:
{
PattLit p = (PattLit) p0;
freeLiteral(p->lit);
}
break;
case TAG_PIMP:
{
PattImplArg p = (PattImplArg) p0;
freePatt(p->pat);
}
break;
case TAG_PTILDE:
{
PattTilde p = (PattTilde) p0;
freeExpr(p->e);
}
break;
default:
__pgf_panic("Unknown pattern tag");
}
free(p0);
}
static void freePatts(Patts pats) {
int i;
for (i = 0; i < pats->count; i++) {
freePatt(pats->pats[i]);
}
free(pats);
}
static void freeEquations(Equations equs) {
int i;
for (i = 0; i < equs->count; i++) {
freePatts(equs->equs[i].lhs);
freeExpr(equs->equs[i].rhs);
}
free(equs);
}
static void freeAbsFun(AbsFun fun) {
freeCId(fun->name);
freeType(fun->ty);
freeEquations(fun->equs);
}
static void freeAbsFuns(AbsFuns funs) {
int i;
for (i = 0; i < funs->count; i++) {
freeAbsFun(&funs->lst[i]);
}
free(funs);
}
static void freeAbsCat(AbsCat cat) {
freeCId(cat->name);
freeContext(cat->hypos);
freeCIdList(cat->funs);
}
static void freeAbsCats(AbsCats cats) {
int i;
for (i = 0; i < cats->count; i++) {
freeAbsCat(&cats->lst[i]);
}
free(cats);
}
static void freeAbstract(Abstract abstr) {
freeCId(abstr->name);
freeFlags(abstr->flags);
freeAbsFuns(abstr->funs);
freeAbsCats(abstr->cats);
}
static void freeConcrete(Concrete concr) {
// freeCId(concr->name);
// freeFlags(concr->flags);
}
void freePGF(PGF pgf) {
int i;
freeFlags(pgf->flags);
freeAbstract(&pgf->abstract);
for (i = 0; i < pgf->nConcr; i++)
freeConcrete(&pgf->concretes[i]);
free(pgf);
}
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