block.c
1.16 KB
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#include <malloc.h>
#include <identList.h>
#include <stmtQueue.h>
struct block /* a stack of used blocks. */
{
s_stmtQueue * stmts;
s_identList * idl;
s_block * prev;
};
s_identList *
blockGetIdl(s_block * block)
{
return block->idl;
}
s_block *
blockNew(s_stmtQueue * stmts)
{
s_block * new = (s_block *) malloc (sizeof (s_block));
new->stmts = stmts;
new->prev = NULL;
new->idl = identListNew (); /* !!!FIXME: i guess idl should know about
its block! (Give the block as arg) */
return new;
}
void
blockFree(s_block * bs)
{
if (bs->prev != NULL)
blockFree (bs->prev);
if (bs->stmts != NULL)
stmtQueueFree (bs->stmts);
identListFree(bs->idl);
free (bs);
}
void
blockSetNonLocalId(s_block * bs, s_ident * id)
{
s_identListPutVal(bs->idl, id);
}
s_block *
blockPush(s_block ** bs, s_block * new)
{
new->prev = *bs;
*bs = new;
return *bs;
}
s_block *
blockPop(s_block ** bs)
{
s_block * ret = *bs;
*bs = (*bs)->prev;
return ret;
}
s_block *
blockPrev(s_block * bs)
{
return bs->prev;
}
s_stmtQueue *
blockStmts(s_block * bs)
{
return bs->stmts;
}
s_identList *
blockIdl(s_block * bs)
{
return bs->idl;
}