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/* -*- c -*-
* File: proscope.c
* Author: Igor Vlasenko <vlasenko@imath.kiev.ua>
* Created: Thu May 26 15:25:57 2005
*
* $Id$
*/
#include <stdlib.h>
#include "proscope.h"
#include "tmpllog.h"
#define START_NUMBER_OF_NESTED_LOOPS 64
static
void
Scope_init(struct scope_stack* scopestack) {
scopestack->max=START_NUMBER_OF_NESTED_LOOPS;
scopestack->root=(struct ProScopeEntry*) malloc ((scopestack->max) * sizeof(struct ProScopeEntry));
if (NULL==scopestack->root) tmpl_log(TMPL_LOG_ERROR, "DIE:_Scope_init:internal error:not enough memory\n");
scopestack->level=-1;
}
static
void
Scope_free(struct scope_stack* scopestack) {
free(scopestack->root);
scopestack->max=-1;
scopestack->level=-1;
}
INLINE
static
int curScopeLevel(const struct scope_stack* scopestack) {
return scopestack->level;
}
INLINE
static
struct ProScopeEntry* getCurrentScope(const struct scope_stack* scopestack) {
return scopestack->root+scopestack->level;
}
INLINE
static
struct ProScopeEntry*
getScope(const struct scope_stack* scopestack, int depth) {
return &(scopestack->root)[depth];
}
static
void
popScope(struct scope_stack* scopestack) {
if (scopestack->level>0) scopestack->level--;
else tmpl_log(TMPL_LOG_ERROR, "WARN:PopScope:internal error:scope is exhausted\n");
}
static
void
_pushScope(struct scope_stack* scopestack) {
if (scopestack->max<0) {
tmpl_log(TMPL_LOG_ERROR, "WARN:PushScope:internal warning:why scope is empty?\n");
Scope_init(scopestack);
}
++scopestack->level;
if (scopestack->level>scopestack->max)
{
if (scopestack->max<START_NUMBER_OF_NESTED_LOOPS) scopestack->max=START_NUMBER_OF_NESTED_LOOPS;
scopestack->max*=2;
scopestack->root=(struct ProScopeEntry*) realloc (scopestack->root, (scopestack->max) * sizeof(struct ProScopeEntry));
}
}
static
void
pushScopeLoop(struct scope_stack* scopestack, int loop_count, void *loops_AV) {
struct ProScopeEntry* CurrentScope;
_pushScope(scopestack);
CurrentScope=scopestack->root+scopestack->level;
CurrentScope->loop=-1;
CurrentScope->loop_count = loop_count;
CurrentScope->flags=0;
CurrentScope->loops_AV=loops_AV;
CurrentScope->param_HV=NULL;
}
static
void
pushScopeMap(struct scope_stack* scopestack, void *param_HV, int flags) {
struct ProScopeEntry* CurrentScope;
_pushScope(scopestack);
CurrentScope=scopestack->root+scopestack->level;
CurrentScope->flags=flags;
CurrentScope->loops_AV=NULL;
CurrentScope->param_HV=param_HV;
}
static
void
Scope_reset(struct scope_stack* scopestack, int keep_count) {
int init_level=-1;
// TODO; find out scope level
if (scopestack->max<0) {
tmpl_log(TMPL_LOG_ERROR, "ERROR:Scope_reset:internal error:scope is empty.\n");
Scope_init(scopestack);
scopestack->level=init_level;
} else {
scopestack->level=keep_count+init_level;
}
}
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