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TypedValue.c
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TypedValue.c
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/*
* #%~
* The VDM to C Code Generator
* %%
* Copyright (C) 2015 - 2016 Overture
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #~%
*/
/*
* TypedValue.c
*
* Created on: Dec 1, 2015
* Author: kel
*/
#include "TypedValue.h"
#include "VdmMap.h"
#include "VdmClass.h"
#include "VdmRecord.h"
#include "VdmBasicTypes.h"
#define ASSERT_CHECK_BOOL(s) assert(s->type == VDM_BOOL && "Value is not a boolean")
#define ASSERT_CHECK_NUMERIC(s) assert((s->type == VDM_INT||s->type == VDM_NAT||s->type == VDM_NAT1||s->type == VDM_REAL||s->type == VDM_RAT) && "Value is not numeric")
#define ASSERT_CHECK_REAL(s) assert((s->type == VDM_REAL) && "Value is not real")
#define ASSERT_CHECK_INT(s) assert((s->type == VDM_INT) && "Value is not integer")
#define ASSERT_CHECK_CHAR(s) assert((s->type == VDM_CHAR) && "Value is not a character")
struct TypedValue* newTypeValue(vdmtype type, TypedValueType value)
{
struct TypedValue* ptr = (struct TypedValue*) malloc(sizeof(struct TypedValue));
ptr->type = type;
ptr->value = value;
return ptr;
}
/// Basic
struct TypedValue* newInt(int x)
{
return newTypeValue(VDM_INT, (TypedValueType
)
{ .intVal = x });
}
struct TypedValue* newNat1(int x)
{
return newTypeValue(VDM_NAT1, (TypedValueType
)
{ .intVal = x });
}
struct TypedValue* newNat(int x)
{
return newTypeValue(VDM_NAT, (TypedValueType
)
{ .intVal = x });
}
struct TypedValue* newBool(bool x)
{
return newTypeValue(VDM_BOOL, (TypedValueType
)
{ .boolVal = x });
}
struct TypedValue* newReal(double x)
{
return newTypeValue(VDM_REAL, (TypedValueType
)
{ .doubleVal = x });
}
struct TypedValue* newChar(char x)
{
return newTypeValue(VDM_CHAR, (TypedValueType
)
{ .charVal = x });
}
struct TypedValue* newQuote(unsigned int x)
{
return newTypeValue(VDM_QUOTE, (TypedValueType
)
{ .quoteVal = x });
}
///
struct TypedValue* newCollection(size_t size, vdmtype type)
{
struct Collection* ptr = (struct Collection*) malloc(sizeof(struct Collection));
ptr->size = size;
ptr->value = (struct TypedValue**) calloc(size, sizeof(struct TypedValue*)); //I know this is slower than malloc but better for products
return newTypeValue(type, (TypedValueType
)
{ .ptr = ptr });
}
struct TypedValue* newCollectionWithValues(size_t size, vdmtype type, TVP* elements)
{
TVP product = newCollection(size,type);
UNWRAP_COLLECTION(col,product);
for (int i = 0; i < size; i++)
{
col->value[i]= vdmClone(elements[i]);
}
return product;
}
int vdmCollectionSize(TVP collection)
{
ASSERT_CHECK_COLLECTION(collection);
UNWRAP_COLLECTION(col,collection);
return col->size;
}
TVP vdmCollectionIndex(TVP collection,int index)
{
ASSERT_CHECK_COLLECTION(collection);
UNWRAP_COLLECTION(col,collection);
assert(index>=0 && index<col->size && "invalid index");
return vdmClone(col->value[index]);
}
struct TypedValue* vdmClone(struct TypedValue* x)
{
//vdmClone struct
struct TypedValue* tmp;
if(x == NULL)
{
return NULL;
}
tmp = newTypeValue(x->type, x->value);
//FIXME vdmClone any pointers
switch (tmp->type)
{
case VDM_BOOL:
case VDM_CHAR:
case VDM_INT:
case VDM_NAT:
case VDM_NAT1:
case VDM_REAL:
case VDM_RAT:
case VDM_QUOTE:
{
//encoded as values so the initial copy line handles these
break;
}
case VDM_MAP:
//todo
break;
case VDM_PRODUCT:
case VDM_SEQ:
case VDM_SET:
{
UNWRAP_COLLECTION(cptr, tmp);
struct Collection* ptr = (struct Collection*) malloc(sizeof(struct Collection));
//copy (size)
*ptr = *cptr;
ptr->value = (struct TypedValue**) malloc(sizeof(struct TypedValue) * ptr->size);
for (int i = 0; i < cptr->size; i++)
{
ptr->value[i] = vdmClone(cptr->value[i]);
}
tmp->value.ptr = ptr;
break;
}
// case VDM_OPTIONAL:
// //TODO
// break;
case VDM_RECORD:
{
ASSERT_CHECK_RECORD(tmp);
UNWRAP_RECORD(record, tmp);
return record->vdmCloneFun(tmp);
}
case VDM_CLASS:
{
//handle smart pointer
struct ClassType* classTptr = (struct ClassType*) tmp->value.ptr;
//improve using memcpy
tmp->value.ptr = newClassValue(classTptr->classId, classTptr->refs, classTptr->freeClass, classTptr->value);
}
}
return tmp;
}
bool equals(struct TypedValue* a, struct TypedValue* b)
{
if(isNumber(a)&& isNumber(b))
{
return toDouble(a)==toDouble(b);
}
if (a->type != b->type) //is this correct for optional types too
{
return false;
}
switch (a->type)
{
case VDM_BOOL:
{
return a->value.boolVal == b->value.boolVal;
}
case VDM_CHAR:
{
return a->value.charVal == b->value.charVal;
}
case VDM_INT:
case VDM_NAT:
case VDM_NAT1:
{
return a->value.intVal == b->value.intVal;
}
case VDM_RAT:
case VDM_REAL:
{
return a->value.doubleVal == b->value.doubleVal;
}
case VDM_QUOTE:
{
return a->value.quoteVal == b->value.quoteVal;
}
case VDM_MAP:
{
// return mapEqual(a, b);
break;
}
case VDM_PRODUCT:
case VDM_SEQ:
{
return collectionEqual(a, b);
}
case VDM_SET:
{
//FIXME
return collectionEqual(a, b);
}
// case VDM_OPTIONAL:
// {
// break;
// }
case VDM_RECORD:
{
ASSERT_CHECK_RECORD(a);
UNWRAP_RECORD(record, a);
return record->equalFun(a, b);
}
case VDM_CLASS:
{
struct ClassType* ac = a->value.ptr;
struct ClassType* bc = b->value.ptr;
//reference compare does the pointer point to the same instance
return ac->value == bc->value;
}
}
return false;
}
bool collectionEqual(TVP col1,TVP col2)
{
//internal function do not call except if args points to a collection
UNWRAP_COLLECTION(aCol,col1);
UNWRAP_COLLECTION(bCol,col2);
if(aCol->size!=bCol->size)
{
//wrong sizes
return false;
}
bool match = true;
for (int i = 0; i < aCol->size; i++)
{
match &= equals(aCol->value[i],bCol->value[i]);
}
return match;
}
void recursiveFree(struct TypedValue* ptr)
{
if (ptr == NULL)
return;
switch (ptr->type)
{
case VDM_BOOL:
case VDM_CHAR:
case VDM_INT:
case VDM_NAT:
case VDM_NAT1:
case VDM_REAL:
case VDM_RAT:
case VDM_QUOTE:
{
break;
}
case VDM_MAP:
//TODO:
break;
case VDM_PRODUCT:
case VDM_SEQ:
case VDM_SET:
{
UNWRAP_COLLECTION(cptr, ptr);
for (int i = 0; i < cptr->size; i++)
{
if (cptr->value[i] != NULL)
{
recursiveFree(cptr->value[i]);
}
}
free(cptr);
ptr->value.ptr = NULL;
break;
}
// case VDM_OPTIONAL:
// //TODO
// break;
case VDM_RECORD:
{
//handle smart pointer
struct RecordType* recordTptr = (struct RecordType*) ptr->value.ptr;
recordTptr->freeRecord(recordTptr->value);
recordTptr->value = NULL;
recordTptr->freeRecord = NULL;
//free record type
free(recordTptr);
ptr->value.ptr = NULL;
break;
}
case VDM_CLASS:
{
//handle smart pointer
struct ClassType* classTptr = (struct ClassType*) ptr->value.ptr;
classTptr->freeClass(classTptr->value);
classTptr->value = NULL;
classTptr->freeClass = NULL;
//free classtype
free(classTptr);
ptr->value.ptr = NULL;
break;
}
}
//free typedvalue
free(ptr);
}
TVP vdmEquals(struct TypedValue* a, struct TypedValue* b)
{ return newBool(equals(a,b));}
TVP vdmInEquals(struct TypedValue* a, struct TypedValue* b)
{ return newBool(!equals(a,b));}