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free.c
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free.c
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#include "free.h"
extern Node* tree;
extern SymbolTableStack* symbolTableStack;
extern int yylex_destroy(void);
void freeTableValueArguments(FunctionArgument* argument)
{
if (!argument) return;
freeTableValueArguments(argument->nextArgument);
freeLexicalValue(argument->lexicalValue);
free(argument);
argument = NULL;
}
void freeTableValue(SymbolTableValue value)
{
freeTableValueArguments(value.arguments);
freeLexicalValue(value.lexicalValue);
}
void freeTableEntry(SymbolTableEntry entry)
{
freeTableValue(entry.value);
if (entry.key) {
free(entry.key);
entry.key = NULL;
}
}
void freeTableEntries(SymbolTable* table)
{
for (size_t index = 0; index < table->capacity; index++)
{
freeTableEntry(table->entries[index]);
}
free(table->entries);
table->entries = NULL;
}
void freeSymbolTable(SymbolTable* table)
{
if (!table) return;
freeTableEntries(table);
free(table);
table = NULL;
}
void freeSymbolTableStack(SymbolTableStack* symbolTableStack)
{
if (!symbolTableStack) return;
freeSymbolTableStack(symbolTableStack->nextItem);
freeSymbolTable(symbolTableStack->symbolTable);
free(symbolTableStack);
symbolTableStack = NULL;
}
SymbolTableStack* freeFirstTableFromSymbolTableStack(SymbolTableStack* symbolTableStack)
{
if (!symbolTableStack) return NULL;
freeSymbolTable(symbolTableStack->symbolTable);
SymbolTableStack* nextItem = symbolTableStack->nextItem;
free(symbolTableStack);
symbolTableStack = NULL;
return nextItem;
}
void freeLexicalValue(LexicalValue lexicalValue)
{
if (!lexicalValue.label) return;
free(lexicalValue.label);
lexicalValue.label = NULL;
}
void freeTree(Node* node)
{
if (!node) return;
freeLexicalValue(node->lexicalValue);
Node* child = node->child;
freeTree(child);
Node* brother = node->brother;
freeTree(brother);
free(node);
node = NULL;
}
void freeGlobalTree()
{
freeTree(tree);
tree = NULL;
}
void freeGlobalSymbolTableStack()
{
freeSymbolTableStack(symbolTableStack);
symbolTableStack = NULL;
}
void freeIlocList(IlocOperationList* list)
{
if (!list) return;
IlocOperationList* child = list->nextItem;
freeIlocList(child);
free(list);
list = NULL;
}
void freeGlobalVariables()
{
freeGlobalTree();
freeGlobalSymbolTableStack();
yylex_destroy();
}