1486 lines
51 KiB
C
1486 lines
51 KiB
C
/* Symbol Table */
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/* The Translators - Spring 2025 */
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#include "symbol_table.h"
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void printdebug_impl(char *file, int line, const char *format, ...) {
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if (DEBUG) {
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printf("%s<%s> [%d]%s ", COLOR_DARKGRAY, file, line,
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COLOR_WHITE);
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va_list args;
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va_start(args, format);
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vprintf(format, args);
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va_end(args);
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printf("\n");
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}
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}
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// primitive additional info only stores the size of that type
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AdInfo *CreatePrimitiveInfo(int size) {
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AdInfo *info = (AdInfo *)malloc(sizeof(AdInfo));
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info->PrimAdInfo = (primitive_info *)malloc(sizeof(primitive_info));
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info->PrimAdInfo->size = size;
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return info;
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}
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// only gets the size of a primitive type
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int getPrimSize(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed an NULL entry to getPrimSize function. Invalid.");
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return -1;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getPrimSize function. "
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"Invalid.");
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return -1;
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}
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if (definition->additionalinfo == NULL) {
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printdebug("node has NULL additionalinfo. Invalid.");
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return -1;
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}
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if (strcmp(getType(definition), "primitive") != 0) {
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printdebug(
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"not checking the size of a primitive -- invalid op");
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return 0;
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}
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return definition->additionalinfo->PrimAdInfo->size;
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}
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// Only information stored in array info is the number of dimensions and the
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// type stored in the array per professor, the actual size of the array is
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// calculated at runtime so bounds checking only needs to be done then
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AdInfo *CreateArrayInfo(int dim, TableNode *type) {
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if (type == NULL) {
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printdebug(
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"passed a NULL reference to "
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"CreateArrayInfo. Invalid.");
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return NULL;
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}
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if (type == undefined) {
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printdebug(
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"passed an undefined reference to "
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"CreateArrayInfo. Invalid.");
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return NULL;
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}
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if (type == undefined) {
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printdebug(
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"passed a undefined type reference to "
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"CreateArrayInfo. Invalid.");
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return NULL;
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}
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AdInfo *info = (AdInfo *)malloc(sizeof(AdInfo));
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info->ArrayAdInfo = (array_info *)malloc(sizeof(array_info));
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info->ArrayAdInfo->numofdimensions = dim;
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info->ArrayAdInfo->typeofarray = type;
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// avoiding storing any types like below
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// int* dimensionsizes = loc;
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return info;
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}
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// This gets the number of dimensions from array info
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int getNumArrDim(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed an NULL entry to getNumArrDim "
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"function. Invalid.");
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return -1;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getNumArrDim "
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"function. Invalid.");
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return -1;
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}
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if (getAdInfoType(definition) != TYPE_ARRAY_TYPE) {
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printdebug(
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"passed an invalid node to getNumArrDim. Seeing tag %d in getNumArrDim. Invalid.", getAdInfoType(definition));
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return -1;
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}
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return definition->additionalinfo->ArrayAdInfo->numofdimensions;
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}
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// This gets the type stored in an array from arrtype. It returns a reference to
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// the entry of that type
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TableNode *getArrType(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed an NULL entry to getArrType "
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"function. Invalid.");
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return undefined;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getArrType "
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"function. Invalid.");
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return undefined;
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}
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if (getAdInfoType(definition) != TYPE_ARRAY_TYPE) {
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printdebug(
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"passed an invalid node to getArrType. Seeing tag %d. Invalid.", getAdInfoType(definition));
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return undefined;
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}
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return definition->additionalinfo->ArrayAdInfo->typeofarray;
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}
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// Record type currently stores the number of elements as well as the types, in
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// order, of what make up that type in an array. Unfortunately this second part
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// should probably instead be replaced by a reference to a scope in which those
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// elements are found.
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AdInfo *CreateRecordInfo(int length, SymbolTable *recordScope) {
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AdInfo *info = (AdInfo *)malloc(sizeof(AdInfo));
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info->RecAdInfo = (record_info *)malloc(sizeof(record_info));
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info->RecAdInfo->numofelements = length;
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// replace below with reference to a scope, not an array
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info->RecAdInfo->recordScope = recordScope;
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return info;
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}
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// This gets the number of elements that make up a record.
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// Perhaps this may not be needed since we need to iterate over all elements
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// anyways.
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int getRecTotal(TableNode *node) {
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if (node == NULL) {
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printdebug(
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"passed a NULL node to getRecTotal. Invalid.");
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return -1;
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}
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if (getAdInfoType(node) != TYPE_RECORD_TYPE) {
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printdebug(
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"passed an invalid node to getRecTotal. Invalid.");
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return -1;
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}
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if (node->additionalinfo == NULL) {
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printdebug(
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"node has NULL additionalinfo. Invalid.");
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return -1;
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}
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return node->additionalinfo->RecAdInfo->total_size;
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}
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TableNode *setRecOffsetInfo(SymbolTable *scope, TableNode *node) {
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if (node == NULL) {
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printdebug(
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"passed a NULL node to setRecOffsetInfo. Invalid.");
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return undefined;
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}
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if (scope == NULL) {
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printdebug(
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"passed an NULL scope to setRecOffsetInfo. Invalid.");
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return undefined;
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}
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if (getFirstEntry(scope) == NULL) {
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printdebug(
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"passed an empty scope to setRecOffsetInfo. Invalid.");
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return undefined;
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}
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TableNode *this = getFirstEntry(scope);
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int largest = 0;
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int k = getRecLength(node);
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int total_size = 0;
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int counter = 0;
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int *offsets = (int *)calloc(2 * k, sizeof(int));
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if (getAdInfoType(this) == TYPE_FUNCTION_DECLARATION) {
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offsets[counter] = 8;
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total_size = total_size + offsets[counter];
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largest = 8;
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counter++;
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} else if ((getAdInfoType(this) == TYPE_RECORD)) {
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offsets[counter] = 8;
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total_size = total_size + offsets[counter];
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largest = offsets[counter];
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counter++;
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} else if (getAdInfoType(this) == TYPE_PRIMITIVE) {
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offsets[counter] = getPrimSize(getTypeEntry(this));
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total_size = total_size + offsets[counter];
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largest = offsets[counter];
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counter++;
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} else if (getAdInfoType(this) == TYPE_ARRAY) {
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offsets[counter] = 8;
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total_size = total_size + offsets[counter];
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largest = offsets[counter];
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counter++;
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} else {
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printdebug(
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"[TYPE CHECK] passed an invalid (first) parameter to a function definition. seeing %d. Type of entry is %s. Name attempted to pass is %s.", getAdInfoType(this), getType(this), getName(this));
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return undefined;
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}
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this = getNextEntry(this);
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while (this != NULL) {
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if (getAdInfoType(this) == TYPE_FUNCTION_DECLARATION) {
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int s = 8;
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if (s > largest) {
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largest = s;
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}
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//make sure current location is aligned properly
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offsets[counter] = (total_size % s);
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total_size = total_size + offsets[counter];
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counter++;
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//add in the size of the entry and increment
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offsets[counter] = s;
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total_size = total_size + offsets[counter];
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counter++;
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this = getNextEntry(this);
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} else if (getAdInfoType(this) == TYPE_ARRAY) {
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int s = 8;
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if (s > largest) {
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largest = s;
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}
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//make sure current location is aligned properly
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offsets[counter] = (total_size % s);
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total_size = total_size + offsets[counter];
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counter++;
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//add in the size of the entry and increment
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offsets[counter] = s;
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total_size = total_size + offsets[counter];
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counter++;
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this = getNextEntry(this);
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} else if ((getAdInfoType(this) == TYPE_RECORD)) {
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int s = 8;
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if (s > largest) {
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largest = s;
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}
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//make sure current location is aligned properly
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printTableNode(this);
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printTableNode(node);
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offsets[counter] = (total_size % s);
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total_size = total_size + offsets[counter];
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counter++;
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//add in the size of the entry and increment
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offsets[counter] = s;
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total_size = total_size + offsets[counter];
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counter++;
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this = getNextEntry(this);
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} else if (getAdInfoType(this) == TYPE_PRIMITIVE) {
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int s = getPrimSize(getTypeEntry(this));
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if (s > largest) {
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largest = s;
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}
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//make sure current location is aligned properly
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offsets[counter] = (total_size % s);
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total_size = total_size + offsets[counter];
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counter++;
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//add in the size of the entry and increment
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offsets[counter] = s;
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total_size = total_size + offsets[counter];
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counter++;
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this = getNextEntry(this);
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} else {
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printdebug(
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"[TYPE CHECK] passed an invalid parameter at position %d in record.", ((counter + 1) / 2));
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return undefined;
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}
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}
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//make sure that size of whole structure is aligned with largest element in struct:
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offsets[counter] = (total_size % largest);
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total_size = total_size + offsets[counter];
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node->additionalinfo->RecAdInfo->offsets = offsets;
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node->additionalinfo->RecAdInfo->total_size = total_size;
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return node;
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}
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int *getRecOffsets(TableNode *node) {
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if (node == NULL) {
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printdebug(
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"passed a NULL node to getRecTotal. Invalid.");
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return NULL;
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}
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if (getAdInfoType(node) != TYPE_RECORD_TYPE) {
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printdebug(
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"passed an invalid node to getRecTotal. Invalid.");
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return NULL;
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}
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if (node->additionalinfo == NULL) {
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printdebug(
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"node has NULL additionalinfo. Invalid.");
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return NULL;
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}
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return node->additionalinfo->RecAdInfo->offsets;
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}
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int getRecLength(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed an NULL entry to getRecLength "
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"function. Invalid.");
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return -1;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getRecLength "
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"function. Invalid.");
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return -1;
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}
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if (strcmp(getType(definition), "record") != 0) {
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printdebug(
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"not checking the length of an record -- invalid op");
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return 0;
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}
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return definition->additionalinfo->RecAdInfo->numofelements;
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}
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// This gets the array. Needs to up be updated to get the scope instead
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SymbolTable *getRecList(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed a NULL entry to getRecList "
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"function. Invalid.");
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return NULL;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getRecList "
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"function. Invalid.");
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return NULL;
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}
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if (strcmp(getType(definition), "record") != 0) {
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printdebug(
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"not checking the list of types of a record -- invalid "
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"op of type %s",
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getType(definition));
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return NULL;
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}
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return definition->additionalinfo->RecAdInfo->recordScope;
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}
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TableNode *setRecSize(TableNode *tn, int n) {
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if (tn == NULL) {
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printdebug("passed in NULL entry for setRecSize. Invalid");
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return undefined;
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}
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if (tn == undefined) {
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printdebug("passed in undefined entry for setRecSize. Invalid");
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return undefined;
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}
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tn->additionalinfo->RecAdInfo->numofelements = n;
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return tn;
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}
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int getRecSize(SymbolTable *tn) {
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if (tn == NULL) {
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printdebug(
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"passed in NULL SymbolTable for getRecSize. Invalid");
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return -1;
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}
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int s = 1;
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TableNode *cur = getFirstEntry(tn);
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if (cur != NULL) {
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while (getNextEntry(cur) != NULL) {
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s++;
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cur = getNextEntry(cur);
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}
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return s;
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}
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return -1;
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}
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// below function takes a bool to see if parameter should be decomposed or not
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; // note that functions only take one input and have one output
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// using "as" the input record can be decomposed to give the illusion of
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// multiple inputs Below function also has the line number where the function is
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// first defined
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AdInfo *CreateFunctionDeclarationInfo(int line, bool asorregular) {
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AdInfo *info = (AdInfo *)malloc(sizeof(AdInfo));
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info->FunDecAdInfo = (function_declaration_info *)malloc(
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sizeof(function_declaration_info));
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info->FunDecAdInfo->startlinenumber = line;
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info->FunDecAdInfo->regularoras = asorregular;
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return info;
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}
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// gets the line at which the function was first defined. (Can be used to print
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// out in table if needed)
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int getStartLine(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed a NULL entry to getStartLine "
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"function. Invalid.");
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return -1;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getStartLine "
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"function. Invalid.");
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return -1;
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}
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if (strcmp(getType(definition), "primitive function") != 0) {
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printdebug(
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"not checking the start line of a function -- invalid "
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"op");
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return 0;
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}
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return definition->additionalinfo->FunDecAdInfo->startlinenumber;
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}
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TableNode *setStartLine(TableNode *tn, int start) {
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if (tn == NULL) {
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printdebug(
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"passing in a NULL entry to setStartLine. "
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"invalid");
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return undefined;
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}
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if (tn == undefined) {
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printdebug(
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"passing in an undefined entry to setStartLine. "
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"invalid");
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return undefined;
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}
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tn->additionalinfo->FunDecAdInfo->startlinenumber = start;
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return tn;
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}
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// checks if "as" keyword was used for function definition. Either 0 or 1 for
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// not used or used.
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bool getAsKeyword(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed a NULL entry to getAsKeyword "
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"function. Invalid.");
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return false;
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}
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if (definition == undefined) {
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printdebug(
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"passed an undefined entry to getAsKeyword "
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"function. Invalid.");
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return false;
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}
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if (strcmp(getType(definition), "primitive function") != 0) {
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printdebug(
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"not checking if a function is called with as or "
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"not (%s) -- "
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"invalid op",
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getType(definition));
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return 0;
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}
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return definition->additionalinfo->FunDecAdInfo->regularoras;
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}
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TableNode *setAsKeyword(TableNode *tn, bool as) {
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if (tn == NULL) {
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printdebug(
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"passing in a NULL entry to setAsKeyword. "
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"invalid");
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return undefined;
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}
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if (tn == undefined) {
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printdebug(
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"passing in an undefined entry to setAsKeyword. "
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"invalid");
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return undefined;
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}
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tn->additionalinfo->FunDecAdInfo->regularoras = as;
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return tn;
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}
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// stores the type of a function (parameter type and return type)
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AdInfo *CreateFunctionTypeInfo(TableNode *parameter, TableNode *returntype) {
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if (parameter == NULL) {
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printdebug(
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"passed a NULL parameter to "
|
|
"CreateFunctionTypeInfo. Invalid.");
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return NULL;
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}
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if (parameter == undefined) {
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printdebug(
|
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"passed an undefined parameter to "
|
|
"CreateFunctionTypeInfo. Invalid.");
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return NULL;
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}
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if (returntype == NULL) {
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printdebug(
|
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"passed a NULL return type to "
|
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"CreateFunctionTypeInfo. Invalid.");
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return NULL;
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}
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if (returntype == undefined) {
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printdebug(
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"passed an undefined return type to "
|
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"CreateFunctionTypeInfo. Invalid.");
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return NULL;
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}
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AdInfo *info = (AdInfo *)malloc(sizeof(AdInfo));
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info->FunTypeAdInfo =
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(function_type_info *)malloc(sizeof(function_type_info));
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info->FunTypeAdInfo->parameter = parameter;
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info->FunTypeAdInfo->returntype = returntype;
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return info;
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}
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// returns parameter type of a function
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TableNode *getParameter(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
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"passed a NULL entry to getParameter "
|
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"function. Invalid.");
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return undefined;
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}
|
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if (definition == undefined) {
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printdebug(
|
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"passed an undefined entry to getParameter "
|
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"function. Invalid.");
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return undefined;
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}
|
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if (definition->additionalinfo == NULL) {
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printdebug(
|
|
"node has NULL additionalinfo. Invalid.");
|
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return undefined;
|
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}
|
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if (strcmp(getType(definition), "primitive function type") != 0) {
|
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printdebug(
|
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"not checking the parameter of a function -- invalid op");
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return undefined;
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}
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return definition->additionalinfo->FunTypeAdInfo->parameter;
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}
|
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// returns return type of a function
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TableNode *getReturn(TableNode *definition) {
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if (definition == NULL) {
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printdebug(
|
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"passed a NULL entry to getReturn "
|
|
"function. Invalid.");
|
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return undefined;
|
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}
|
|
if (definition == undefined) {
|
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printdebug(
|
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"passed an undefined entry to getReturn "
|
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"function. Invalid.");
|
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return undefined;
|
|
}
|
|
if (strcmp(getType(definition), "primitive function type") != 0) {
|
|
printdebug(
|
|
"not checking the return of a function -- invalid op");
|
|
return undefined;
|
|
}
|
|
if (definition->additionalinfo == NULL) {
|
|
printdebug(
|
|
"node has NULL additionalinfo. Invalid.");
|
|
return undefined;
|
|
}
|
|
return definition->additionalinfo->FunTypeAdInfo->returntype;
|
|
}
|
|
|
|
// creates a new scope (not the top scope though)
|
|
SymbolTable *CreateScope(SymbolTable *ParentScope, int Line, int Column) {
|
|
SymbolTable *table = (SymbolTable *)malloc(sizeof(SymbolTable));
|
|
table->Line_Number = Line;
|
|
table->Column_Number = Column;
|
|
table->Parent_Scope = ParentScope;
|
|
table->Children_Scope = NULL;
|
|
table->entries = NULL;
|
|
if (ParentScope != NULL) {
|
|
if (ParentScope->Children_Scope == NULL) {
|
|
ListOfTable *newEntry =
|
|
(ListOfTable *)malloc(sizeof(ListOfTable));
|
|
newEntry->next = NULL;
|
|
// newEntry->prev = NULL;
|
|
newEntry->table = table;
|
|
ParentScope->Children_Scope = newEntry;
|
|
} else {
|
|
ListOfTable *newEntry =
|
|
(ListOfTable *)malloc(sizeof(ListOfTable));
|
|
// newEntry->prev = NULL;
|
|
newEntry->table = table;
|
|
ListOfTable *oldEntry = ParentScope->Children_Scope;
|
|
ParentScope->Children_Scope = newEntry;
|
|
newEntry->next = oldEntry;
|
|
}
|
|
}
|
|
return table;
|
|
}
|
|
|
|
// create entry just for things below top level scope
|
|
// This function defines the integer, address, character, and bool primitive
|
|
// types
|
|
SymbolTable *init(SymbolTable *start) {
|
|
if (start->Parent_Scope != NULL) {
|
|
printdebug(
|
|
"%s[FATAL] Cannot initialize a scope that is not "
|
|
"the parent scope",
|
|
COLOR_RED);
|
|
return NULL;
|
|
}
|
|
integ = (TableNode *)calloc(1, sizeof(TableNode));
|
|
addr = (TableNode *)calloc(1, sizeof(TableNode));
|
|
chara = (TableNode *)calloc(1, sizeof(TableNode));
|
|
stri = (TableNode *)calloc(1, sizeof(TableNode));
|
|
boo = (TableNode *)calloc(1, sizeof(TableNode));
|
|
TableNode *reservetype = (TableNode *)calloc(1, sizeof(TableNode));
|
|
TableNode *reserve = (TableNode *)calloc(1, sizeof(TableNode));
|
|
TableNode *releasetype = (TableNode *)calloc(1, sizeof(TableNode));
|
|
TableNode *release = (TableNode *)calloc(1, sizeof(TableNode));
|
|
// TableNode* arr = (TableNode*)malloc(sizeof(SymbolTable));
|
|
start->entries = integ;
|
|
integ->next = addr;
|
|
addr->next = chara;
|
|
chara->next = stri;
|
|
stri->next = boo;
|
|
boo->next = reservetype;
|
|
reservetype->next = reserve;
|
|
reserve->next = releasetype;
|
|
releasetype->next = release;
|
|
release->next = NULL;
|
|
|
|
integ->theName = "integer";
|
|
addr->theName = "address";
|
|
chara->theName = "character";
|
|
boo->theName = "Boolean";
|
|
stri->theName = "string";
|
|
reserve->theName = "reserve";
|
|
reservetype->theName = "reserve type";
|
|
releasetype->theName = "release type";
|
|
release->theName = "release";
|
|
// arr->theName= "array"
|
|
|
|
// root TableNode that all are pointing to but not in table
|
|
// This is only to solve the issue that all entries must have a name and
|
|
// a type and the type must point to an actual table entry Again, this
|
|
// primitive table entry isn't in the top scope. It is outside the top
|
|
// scope and is only there to facilitate the fact that these are
|
|
// primitive
|
|
TableNode *prime = (TableNode *)malloc(sizeof(TableNode));
|
|
prime->theName = "primitive";
|
|
prime->theType = NULL;
|
|
prime->additionalinfo = NULL;
|
|
prime->next = NULL;
|
|
prime->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
// not sure exatly how to get array types to look right so using a dummy
|
|
// Table Node below and updating the print symbol table function to
|
|
// access the additional information to print for array types, similar
|
|
// to function types when printing symbol table, if array is seen
|
|
arrayprim = (TableNode *)malloc(sizeof(TableNode));
|
|
arrayprim->theName = "array";
|
|
arrayprim->theType = NULL;
|
|
arrayprim->additionalinfo = NULL;
|
|
arrayprim->next = NULL;
|
|
prime->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
// funprime = CreateEntry(NULL,NULL,strdup("function primitive"),NULL);
|
|
|
|
// similar workaround to arrays above
|
|
funprime = (TableNode *)malloc(sizeof(TableNode));
|
|
funprime->theName = "primitive function";
|
|
funprime->theType = NULL;
|
|
funprime->additionalinfo = NULL;
|
|
funprime->next = NULL;
|
|
funprime->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
// record
|
|
recprime = (TableNode *)malloc(sizeof(TableNode));
|
|
recprime->theName = "record";
|
|
recprime->theType = NULL;
|
|
recprime->additionalinfo = NULL;
|
|
recprime->next = NULL;
|
|
recprime->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
funtypeprime = (TableNode *)malloc(sizeof(TableNode));
|
|
funtypeprime->theName = "primitive function type";
|
|
funtypeprime->theType = NULL;
|
|
funtypeprime->additionalinfo = NULL;
|
|
funtypeprime->next = NULL;
|
|
funtypeprime->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
undefined = (TableNode *)malloc(sizeof(TableNode));
|
|
undefined->theName = "undefined";
|
|
undefined->theType = NULL;
|
|
undefined->additionalinfo = NULL;
|
|
undefined->next = NULL;
|
|
undefined->tag = TYPE_SYSTEM_DEFINED;
|
|
|
|
// Undefined_function_type_info = CreateFunctionTypeInfo(undefined,
|
|
// undefined);
|
|
|
|
integ->theType = prime;
|
|
addr->theType = prime;
|
|
chara->theType = prime;
|
|
stri->theType = arrayprim;
|
|
boo->theType = prime;
|
|
reserve->theType = reservetype;
|
|
reservetype->theType = funtypeprime;
|
|
releasetype->theType = funtypeprime;
|
|
release->theType = releasetype;
|
|
|
|
// arr->theType=arrayprim;
|
|
|
|
// filling in all the values for the additional info for initial types
|
|
// These numbers below for create primitive specifically are supposed to
|
|
// be the size of these primitive types. We can change these if needed
|
|
// to not be hard coded numbers as a reminder, stri below is defined as
|
|
// a one dimensional array of characters
|
|
integ->additionalinfo = CreatePrimitiveInfo(SIZE_INT);
|
|
addr->additionalinfo = CreatePrimitiveInfo(SIZE_ADDR);
|
|
chara->additionalinfo = CreatePrimitiveInfo(SIZE_CHAR);
|
|
stri->additionalinfo = CreateArrayInfo(1, chara);
|
|
boo->additionalinfo = CreatePrimitiveInfo(SIZE_BOOL);
|
|
reserve->additionalinfo = CreateFunctionDeclarationInfo(0, false);
|
|
reservetype->additionalinfo = CreateFunctionTypeInfo(integ, addr);
|
|
releasetype->additionalinfo = CreateFunctionTypeInfo(addr, integ);
|
|
release->additionalinfo = CreateFunctionDeclarationInfo(0, false);
|
|
|
|
integ->tag = TYPE_PRIMITIVE_TYPE; // explicitly set the type for integ
|
|
addr->tag = TYPE_PRIMITIVE_TYPE; // explicitly set the type for addr
|
|
chara->tag = TYPE_PRIMITIVE_TYPE; // explicitly set the type for chara
|
|
stri->tag = TYPE_ARRAY_TYPE; // explicitly set the type for stri
|
|
boo->tag = TYPE_PRIMITIVE_TYPE; // explicitly set the type for boo
|
|
reserve->tag = TYPE_FUNCTION_DECLARATION;
|
|
reservetype->tag = TYPE_FUNCTION_TYPE;
|
|
releasetype->tag = TYPE_FUNCTION_TYPE;
|
|
release->tag = TYPE_FUNCTION_DECLARATION;
|
|
// addr->additionalinfo = CreatePrimitiveInfo(8);
|
|
|
|
start->Line_Number = 1;
|
|
start->Column_Number = 1;
|
|
start->Parent_Scope = NULL;
|
|
start->Children_Scope = NULL;
|
|
|
|
return start;
|
|
}
|
|
/*
|
|
TableNode* integ;
|
|
TableNode* addr;
|
|
TableNode* chara;
|
|
TableNode* stri;
|
|
TableNode* boo;
|
|
TableNode* recprime;
|
|
TableNode* funtypeprime;
|
|
*/
|
|
TableNode *populateTypeAndInfo(TableNode *tn, TableNode *type, AdInfo *info) {
|
|
if (tn == NULL) {
|
|
printdebug(
|
|
"passed in an NULL table node to populateTypeAndInfo.");
|
|
return undefined;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug(
|
|
"passed in an undefined table node to populateTypeAndInfo");
|
|
return undefined;
|
|
}
|
|
if (type == NULL) {
|
|
printdebug(
|
|
"passed in a NULL type reference to "
|
|
"populate a table node. Invalid.");
|
|
return undefined;
|
|
}
|
|
if (type == undefined) {
|
|
printdebug(
|
|
"passed in an undefined type reference to "
|
|
"populate a table node. Invalid.");
|
|
return undefined;
|
|
}
|
|
if (info == NULL) {
|
|
printdebug(
|
|
"passed in a NULL info reference to populate a table "
|
|
"node. Invalid.");
|
|
return undefined;
|
|
}
|
|
tn->theType = type;
|
|
tn->additionalinfo = info;
|
|
// returning reference to modified table node
|
|
return tn;
|
|
}
|
|
|
|
AdInfo *getAdInfo(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug("passed a NULL table entry to getAdInfo. Invalid.");
|
|
return NULL;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug(
|
|
"passed an undefined table entry to getAdInfo. Invalid.");
|
|
return NULL;
|
|
}
|
|
if (tn->additionalinfo == NULL) {
|
|
printdebug(
|
|
"no additional info found in the table node. Invalid.");
|
|
return NULL;
|
|
}
|
|
return tn->additionalinfo;
|
|
}
|
|
|
|
// simplified getAdInfoType
|
|
int getAdInfoType(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug(
|
|
"passing in NULL table entry to getAdInfoType. Invalid");
|
|
return -1;
|
|
}
|
|
return tn->tag;
|
|
/*
|
|
if (tn == undefined) {
|
|
printdebug("passing in undefined table entry to getAdInfoType. "
|
|
"Invalid");
|
|
return -1;
|
|
}
|
|
if (tn->theType == NULL) {
|
|
printdebug("Entry being passed in has a null"
|
|
"reference for theType to getAdInfoType. Invalid.");
|
|
return -1;
|
|
}
|
|
if (tn->theType == undefined) {
|
|
printdebug("Entry being passed in an undefined "
|
|
"reference for theType to getAdInfoType. Invalid.");
|
|
return -1;
|
|
}
|
|
if (strcmp(getName(tn), getName(integ)) == 0) {
|
|
return TYPE_PRIMITIVE;
|
|
}
|
|
if (strcmp(getName(tn), getName(addr)) == 0) {
|
|
return TYPE_PRIMITIVE;
|
|
}
|
|
if (strcmp(getName(tn), getName(chara)) == 0) {
|
|
return TYPE_PRIMITIVE;
|
|
}
|
|
if (strcmp(getName(tn), getName(stri)) == 0) {
|
|
return TYPE_ARRAY_TYPE;
|
|
}
|
|
if (strcmp(getName(tn), getName(boo)) == 0) {
|
|
return TYPE_PRIMITIVE;
|
|
}
|
|
if (strcmp(getName(tn), getName(recprime)) == 0) {
|
|
return TYPE_RECORD_TYPE;
|
|
}
|
|
if (strcmp(getName(tn), getName(funtypeprime)) == 0) {
|
|
return TYPE_FUNCTION_TYPE;
|
|
}
|
|
if (strcmp(getName(tn), getName(arrayprim)) == 0) {
|
|
return TYPE_ARRAY_TYPE; // changed from TYPE_ARRAY cuz
|
|
}
|
|
if (strcmp(getName(tn), getName(undefined)) == 0) {
|
|
return TYPE_UNDEFINED;
|
|
} else {
|
|
if (strcmp(getType(tn), getName(funtypeprime)) == 0) {
|
|
printdebug("passed in a function to getAdInfoType");
|
|
return TYPE_FUNCTION_DECLARATION;
|
|
}
|
|
if (strcmp(getType(tn), getName(arrayprim)) == 0) {
|
|
printdebug("passed in an array to getAdInfoType");
|
|
return TYPE_ARRAY_TYPE;
|
|
}
|
|
if (strcmp(getType(tn), getName(recprime)) == 0) {
|
|
printdebug("passed in a record to getAdInfoType");
|
|
return TYPE_RECORD;
|
|
}
|
|
printdebug(
|
|
"passed in an entry that is not a primitive type, array, "
|
|
"or record. Invalid.");
|
|
return TYPE_FUNCTION_DECLARATION;
|
|
}*/
|
|
}
|
|
|
|
TableNode *CreateEntry(SymbolTable *table, int tag, TableNode *typeOf, char *id,
|
|
AdInfo *ad) {
|
|
if (table == NULL) {
|
|
printdebug("Null reference to table");
|
|
return undefined;
|
|
}
|
|
|
|
/*
|
|
TableNode* topDef = (table_lookup(getAncestor(table),typeOf));
|
|
if(topDef == NULL){
|
|
printdebug("This type is not defined at the top level");
|
|
return NULL;
|
|
}
|
|
*/
|
|
if (typeOf == NULL) {
|
|
printdebug("Passing an NULL Type Node to Create Entry");
|
|
return undefined;
|
|
}
|
|
if (typeOf == undefined) {
|
|
printdebug("Passing an undefined Type Node to Create Entry");
|
|
return undefined;
|
|
}
|
|
|
|
TableNode *newEntry = (TableNode *)calloc(1, sizeof(TableNode));
|
|
if (tag < 1 && tag > 11) {
|
|
printdebug(
|
|
"Note- not passing in valid 'tag' identifier to "
|
|
"create entry function. Setting tag to undefined");
|
|
newEntry->tag = TYPE_UNDEFINED;
|
|
} else {
|
|
newEntry->tag = tag;
|
|
}
|
|
newEntry->theType = typeOf /*topDef*/;
|
|
newEntry->theName = id;
|
|
newEntry->additionalinfo = ad;
|
|
if (table->entries == NULL) {
|
|
table->entries = newEntry;
|
|
printdebug("[CreateEntry] Adding %s to the symbol table", id);
|
|
return newEntry;
|
|
} else {
|
|
TableNode *oldEntry = table->entries;
|
|
table->entries = newEntry;
|
|
newEntry->next = oldEntry;
|
|
printdebug("[CreateEntry] Adding %s to the symbol table", id);
|
|
return newEntry;
|
|
}
|
|
}
|
|
|
|
TableNode *getTypeEntry(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug("passed a NULL table entry to getType");
|
|
return undefined;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug("passed an undefined table entry to getType");
|
|
return undefined;
|
|
}
|
|
if (tn->theType == NULL) {
|
|
printdebug("type of entry is currently NULL type");
|
|
return undefined;
|
|
}
|
|
if (tn->theType == undefined) {
|
|
printdebug("type of entry is currently undefined type");
|
|
return undefined;
|
|
}
|
|
return tn->theType;
|
|
}
|
|
|
|
char *getType(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug("passed a NULL table entry to getType");
|
|
return getName(undefined);
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug("passed an undefined table entry to getType");
|
|
return getName(undefined);
|
|
}
|
|
if (tn->theType == NULL) {
|
|
printdebug("type of entry is currently NULL type");
|
|
return getName(undefined);
|
|
}
|
|
if (tn->theType == undefined) {
|
|
printdebug("type of entry is currently undefined type");
|
|
return getName(undefined);
|
|
}
|
|
return tn->theType->theName;
|
|
}
|
|
|
|
char *getName(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug("passed a NULL table entry to getName");
|
|
return undefined->theName;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug("passed an undefined table entry to getName");
|
|
return undefined->theName;
|
|
}
|
|
if (tn->theName == NULL) {
|
|
printdebug("name of entry is currently NULL, undefined");
|
|
return undefined->theName;
|
|
}
|
|
return tn->theName;
|
|
}
|
|
|
|
int getLine(SymbolTable *st) {
|
|
if (st == NULL) {
|
|
printdebug(
|
|
"passed a NULL symbol table to getLine function. "
|
|
"Invalid.");
|
|
return -1;
|
|
}
|
|
return st->Line_Number;
|
|
}
|
|
int getColumn(SymbolTable *st) {
|
|
if (st == NULL) {
|
|
printdebug(
|
|
"passed a NULL symbol table to getColumn function. "
|
|
"Invalid.");
|
|
return -1;
|
|
}
|
|
return st->Column_Number;
|
|
}
|
|
TableNode *addName(TableNode *tn, char *str) {
|
|
if (tn == NULL) {
|
|
printdebug(
|
|
"passed a Null table node to the addName "
|
|
"function. Invalid.");
|
|
return undefined;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug(
|
|
"passed an undefined table node to the addName "
|
|
"function. Invalid.");
|
|
return undefined;
|
|
}
|
|
if (tn->theName != NULL) {
|
|
// printdebug(
|
|
//"Name doesn't look like it is empty before you change. "
|
|
//"Are you sure you need to update name?");
|
|
if (str != NULL) {
|
|
tn->theName = str;
|
|
return tn;
|
|
}
|
|
printdebug("passed a NULL string to the addName function");
|
|
return undefined;
|
|
}
|
|
if (str == NULL) {
|
|
printdebug(
|
|
"passed a NULL string to the addName function. Invalid.");
|
|
return undefined;
|
|
}
|
|
tn->theName = str;
|
|
return tn;
|
|
}
|
|
|
|
SymbolTable *setLineNumber(SymbolTable *st, int line) {
|
|
if (st == NULL) {
|
|
printdebug(
|
|
"passed a Null Symbol Table to the setLineNumber "
|
|
"function. Invalid.");
|
|
return st;
|
|
}
|
|
st->Line_Number = line;
|
|
return st;
|
|
}
|
|
|
|
SymbolTable *setColumnNumber(SymbolTable *st, int column) {
|
|
if (st == NULL) {
|
|
printdebug(
|
|
"passed a Null Symbol Table to the setColumnNumber "
|
|
"function. Invalid.");
|
|
return st;
|
|
}
|
|
st->Line_Number = column;
|
|
return st;
|
|
}
|
|
|
|
// only check table that is given
|
|
TableNode *table_lookup(SymbolTable *table, char *x) {
|
|
if (table == NULL) {
|
|
printdebug("passed in empty scope. error.");
|
|
return undefined;
|
|
}
|
|
TableNode *entrie = table->entries;
|
|
for (; entrie != NULL; entrie = entrie->next) {
|
|
if (!strcmp(entrie->theName, x)) {
|
|
return entrie;
|
|
}
|
|
}
|
|
printdebug("Could not find %s in scope using table_lookup", x);
|
|
return undefined;
|
|
}
|
|
|
|
// check current table and all parents
|
|
TableNode *look_up(SymbolTable *table, char *x) {
|
|
if (table == NULL) {
|
|
printdebug("Could not find %s in any scope using lookup", x);
|
|
return undefined;
|
|
}
|
|
TableNode *ret = table_lookup(table, x);
|
|
if (ret != NULL && ret != undefined) {
|
|
return ret;
|
|
}
|
|
printdebug(
|
|
"could not find %s in scope that started at line %d and column "
|
|
"%d so moving up a scope",
|
|
x, getLine(table), getColumn(table));
|
|
return look_up(table->Parent_Scope, x);
|
|
}
|
|
|
|
int col_widths[5] = {30, 8, 8, 35, 35};
|
|
void printline(FILE *file_ptr, bool b);
|
|
void printline(FILE *file_ptr, bool b) {
|
|
if (b) {
|
|
fprintf(file_ptr, "oop\n");
|
|
}
|
|
|
|
for (int i = 0; i < 5; i++) {
|
|
for (int ii = 0; ii < col_widths[i]; ii++) {
|
|
fprintf(file_ptr, "-");
|
|
}
|
|
fprintf(file_ptr, ":");
|
|
}
|
|
fprintf(file_ptr, "\n");
|
|
}
|
|
|
|
void st_fprint(FILE *file_ptr, char *label1, int label2, int label3, char *label4, char *label5);
|
|
void st_fprint(FILE *file_ptr, char *label1, int label2, int label3, char *label4, char *label5) {
|
|
if (label3 == -100) {
|
|
fprintf(file_ptr, "%-*s: %0*d : %*s :%-*s:%-*s\n",
|
|
col_widths[0], (label1 ? label1 : ""),
|
|
col_widths[1] - 2, label2,
|
|
col_widths[2] - 2, "",
|
|
col_widths[3], (label4 ? label4 : ""),
|
|
col_widths[4], (label5 ? label5 : ""));
|
|
} else {
|
|
fprintf(file_ptr, "%-*s: %0*d : %0*d :%-*s:%-*s\n",
|
|
col_widths[0], (label1 ? label1 : ""),
|
|
col_widths[1] - 2, label2,
|
|
col_widths[2] - 2, label3,
|
|
col_widths[3], (label4 ? label4 : ""),
|
|
col_widths[4], (label5 ? label5 : ""));
|
|
}
|
|
}
|
|
|
|
void print_symbol_table(SymbolTable *table, FILE *file_ptr) {
|
|
if (table == NULL) {
|
|
printdebug("%s[FATAL] passed in NULL table to print_symbol_table", COLOR_RED);
|
|
return;
|
|
}
|
|
|
|
if (table->Parent_Scope == NULL) {
|
|
fprintf(file_ptr, "%-*s:%-*s:%-*s:%-*s:%-*s:\n",
|
|
col_widths[0], "NAME",
|
|
col_widths[1], " SCOPE",
|
|
col_widths[2], " PARENT",
|
|
col_widths[3], " TYPE",
|
|
col_widths[4], " EXTRA ANNOTATION");
|
|
}
|
|
|
|
TableNode *entry = table->entries;
|
|
printline(file_ptr, false);
|
|
int parentScopeNum = 0;
|
|
int currentScopeNum = 0;
|
|
|
|
if (table->Parent_Scope != NULL) {
|
|
parentScopeNum = getParent(table)->Line_Number * 1000 + getParent(table)->Column_Number;
|
|
currentScopeNum = table->Line_Number * 1000 + table->Column_Number;
|
|
} else {
|
|
currentScopeNum = 1001;
|
|
}
|
|
|
|
if (entry == NULL) {
|
|
st_fprint(file_ptr, "", currentScopeNum, parentScopeNum, "", " Empty Scope");
|
|
}
|
|
|
|
for (; entry != NULL; entry = getNextEntry(entry)) {
|
|
if (getAdInfoType(entry) == TYPE_ARRAY_TYPE) {
|
|
char *arrayType = (char *)malloc(100);
|
|
sprintf(arrayType, " %d -> %s", getNumArrDim(entry),
|
|
getName(getArrType(entry)));
|
|
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, arrayType, " Type of Array");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, arrayType, " Type of Array");
|
|
}
|
|
}
|
|
if (getAdInfoType(entry) == TYPE_ARRAY) {
|
|
char *arrayType = (char *)malloc(sizeof(getType(entry) + 1));
|
|
sprintf(arrayType, " %s", getType(entry));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, arrayType, " Array Instance");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, arrayType, " Array Instance");
|
|
}
|
|
}
|
|
if (getAdInfoType(entry) == TYPE_RECORD_TYPE) {
|
|
char *recordAdInfo = (char *)malloc(100);
|
|
sprintf(recordAdInfo, " elements-%d size-%d bytes", getRecLength(entry), getRecTotal(entry));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, " Record Type", recordAdInfo);
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, " Record Type", recordAdInfo);
|
|
}
|
|
}
|
|
|
|
if (getAdInfoType(entry) == TYPE_RECORD) {
|
|
char *recordAdInfo = (char *)malloc(100);
|
|
sprintf(recordAdInfo, " elements-%d", getRecLength(entry));
|
|
char *recordType = (char *)malloc(sizeof(getType(entry) + 1));
|
|
sprintf(recordType, " %s", getType(entry));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, recordType, " Record Instance");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, recordType, " Record Instance");
|
|
}
|
|
}
|
|
|
|
if (getAdInfoType(entry) == TYPE_PRIMITIVE_TYPE) {
|
|
char *primAdInfo = (char *)malloc(100);
|
|
sprintf(primAdInfo, " size-%d bytes", getPrimSize(entry));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, " Primitive Type", primAdInfo);
|
|
} else {
|
|
char *primType = (char *)malloc(sizeof(getType(entry) + 1));
|
|
sprintf(primType, " %s", getType(entry));
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, primType, primAdInfo);
|
|
}
|
|
}
|
|
if (getAdInfoType(entry) == TYPE_PRIMITIVE) {
|
|
char *primAdInfo = (char *)malloc(100);
|
|
sprintf(primAdInfo, " size-%d bytes", getPrimSize(getTypeEntry(entry)));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, " Primitive", primAdInfo);
|
|
} else {
|
|
char *primType = (char *)malloc(sizeof(getType(entry) + 1));
|
|
sprintf(primType, " %s", getType(entry));
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, primType, " Primitive Instance");
|
|
}
|
|
}
|
|
|
|
if (getAdInfoType(entry) == TYPE_FUNCTION_TYPE) {
|
|
char *functiontype = (char *)malloc(100);
|
|
sprintf(functiontype, " %s -> %s", getName(getParameter(entry)),
|
|
getName(getReturn(entry)));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, functiontype, " Type of Function");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, functiontype, " Type of Function");
|
|
}
|
|
}
|
|
|
|
if (getAdInfoType(entry) == TYPE_FUNCTION_DECLARATION) {
|
|
char *functiontype = (char *)malloc(100);
|
|
sprintf(functiontype, " %s", getName(getReturn(entry)));
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, functiontype, " Function Definition");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, functiontype, " Function Definition");
|
|
}
|
|
}
|
|
|
|
if (getAdInfoType(entry) == TYPE_UNDEFINED) {
|
|
if (parentScopeNum == 0) {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, -100, " undefined", "undefined entry");
|
|
} else {
|
|
st_fprint(file_ptr, getName(entry), currentScopeNum, parentScopeNum, " undefined", "undefined entry");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (getChildren(table) != NULL) {
|
|
ListOfTable *node = getChildren(table);
|
|
for (; node != NULL; node = getRestOfChildren(node)) {
|
|
if ((getFirstChild(node)) == NULL) {
|
|
print_symbol_table(getFirstChild(node), file_ptr);
|
|
} else {
|
|
if (getLine(getFirstChild(node)) == -1) {
|
|
continue;
|
|
} else {
|
|
print_symbol_table(getFirstChild(node), file_ptr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (getParent(table) == NULL) {
|
|
printline(file_ptr, true);
|
|
}
|
|
}
|
|
// get top most symbol table
|
|
SymbolTable *getAncestor(SymbolTable *table) {
|
|
if (table == NULL) {
|
|
printdebug("passing a NULL reference to getAncestor. Invalid.");
|
|
return NULL;
|
|
}
|
|
if (table->Parent_Scope == NULL) {
|
|
// if table has no parent, return itself
|
|
printdebug("already at top scope!");
|
|
if (table == cur) {
|
|
printdebug("passed in the current scope");
|
|
} else {
|
|
printdebug("passed in a different scope");
|
|
}
|
|
return table;
|
|
} else {
|
|
// call function recursively to grab ancestor
|
|
return getAncestor(table->Parent_Scope);
|
|
}
|
|
}
|
|
|
|
SymbolTable *removeEntry(SymbolTable *scope, char *search) {
|
|
if (scope == NULL) {
|
|
return NULL;
|
|
}
|
|
if (scope->entries == NULL) {
|
|
return scope;
|
|
}
|
|
|
|
TableNode *prev = NULL;
|
|
TableNode *now = scope->entries;
|
|
|
|
while (now != NULL) {
|
|
if (strcmp(getName(now), search) == 0) {
|
|
if (prev == NULL) {
|
|
scope->entries = getNextEntry(now);
|
|
return scope;
|
|
} else {
|
|
prev->next = now->next;
|
|
return scope;
|
|
}
|
|
}
|
|
prev = now;
|
|
now = now->next;
|
|
}
|
|
return scope;
|
|
}
|
|
|
|
// almost certainly don't need to use the below function since type checking
|
|
// happens by passing types up the grammar
|
|
bool typeCheck(char *firstID, char *secondID) {
|
|
TableNode *entry1 = look_up(cur, firstID);
|
|
TableNode *entry2 = look_up(cur, secondID);
|
|
if (entry1 == NULL) {
|
|
printdebug("first type is NULL in type check. Invalid.");
|
|
return false;
|
|
}
|
|
if (entry1 == undefined) {
|
|
printdebug("first type is undefined in type check. Invalid.");
|
|
return false;
|
|
}
|
|
if (entry2 == NULL) {
|
|
printdebug("second type is NULL in type check. Invalid.");
|
|
return false;
|
|
}
|
|
if (entry2 == undefined) {
|
|
printdebug("second type is undefined in type check. Invalid.");
|
|
return false;
|
|
}
|
|
if (table_lookup(getAncestor(cur), getType(look_up(cur, firstID))) ==
|
|
table_lookup(getAncestor(cur), getType(look_up(cur, secondID)))) {
|
|
if (strcmp(getType(look_up(cur, firstID)), "array") == 0) {
|
|
if (look_up(cur, firstID)
|
|
->additionalinfo->ArrayAdInfo
|
|
->numofdimensions ==
|
|
look_up(cur, secondID)
|
|
->additionalinfo->ArrayAdInfo
|
|
->numofdimensions &&
|
|
look_up(cur, firstID)
|
|
->additionalinfo->ArrayAdInfo
|
|
->typeofarray ==
|
|
look_up(cur, secondID)
|
|
->additionalinfo->ArrayAdInfo
|
|
->typeofarray) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
SymbolTable *getParent(SymbolTable *st) {
|
|
if (st == NULL) {
|
|
printdebug(
|
|
"passed a NULL symbol table to getParent function. "
|
|
"Invalid.");
|
|
return NULL;
|
|
}
|
|
if (st->Parent_Scope == NULL) {
|
|
printdebug(
|
|
"passed a top level scope to getParent function. "
|
|
"Invalid.");
|
|
return st;
|
|
}
|
|
return st->Parent_Scope;
|
|
}
|
|
|
|
ListOfTable *getChildren(SymbolTable *st) { return st->Children_Scope; }
|
|
SymbolTable *getFirstChild(ListOfTable *lt) { return lt->table; }
|
|
ListOfTable *getRestOfChildren(ListOfTable *lt) { return lt->next; }
|
|
TableNode *getFirstEntry(SymbolTable *st) { return st->entries; }
|
|
|
|
// Segfaults when passed an invalid table node!
|
|
TableNode *getNextEntry(TableNode *tn) {
|
|
if (tn == NULL) {
|
|
printdebug("passed a NULL table node to getNextEntry");
|
|
return undefined;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug("passed an undefined table node to getNextEntry");
|
|
return undefined;
|
|
}
|
|
return tn->next;
|
|
}
|
|
|
|
// Prints all info about a table node
|
|
// Uses pointers to the table node to print the info
|
|
TableNode *printTableNode(TableNode *tn) {
|
|
if (DEBUG == 0) {
|
|
return tn;
|
|
}
|
|
|
|
if (tn == NULL) {
|
|
printdebug("%s[PrintTN] Passed a NULL tablenode!", COLOR_RED);
|
|
return undefined;
|
|
}
|
|
if (tn == undefined) {
|
|
printdebug("%s[PrintTN] Passed an undefined tablenode!",
|
|
COLOR_RED);
|
|
return undefined;
|
|
}
|
|
if (tn->theName == NULL) {
|
|
printdebug("%s[PrintTN] Passed a tablenode with NULL name!",
|
|
COLOR_RED);
|
|
return undefined;
|
|
}
|
|
if (tn->theType == NULL) {
|
|
printdebug("%s[PrintTN] Passed a tablenode with NULL type!",
|
|
COLOR_RED);
|
|
return undefined;
|
|
}
|
|
if (tn->additionalinfo == NULL) {
|
|
printdebug(
|
|
"%s[PrintTN] Passed a tablenode with NULL additional info!",
|
|
COLOR_RED);
|
|
return undefined;
|
|
}
|
|
|
|
printdebug("%s[PrintTN] Printing tablenode...", COLOR_ORANGE);
|
|
printdebug(" %sName: %s%s", COLOR_YELLOW, COLOR_LIGHTBLUE,
|
|
tn->theName);
|
|
printdebug(" %sType: %s%s", COLOR_YELLOW, COLOR_LIGHTBLUE,
|
|
tn->theType->theName);
|
|
printdebug(" %sTag: %s%d", COLOR_YELLOW, COLOR_LIGHTBLUE, tn->tag);
|
|
|
|
if (tn->next == NULL) {
|
|
printdebug(" %sNext: %sNULL", COLOR_YELLOW, COLOR_LIGHTBLUE);
|
|
} else {
|
|
printdebug(" %sNext: %s%s (tn)", COLOR_YELLOW, COLOR_LIGHTBLUE, tn->next->theName);
|
|
}
|
|
|
|
if (tn->tag == TYPE_RECORD_TYPE || tn->tag == TYPE_RECORD) {
|
|
printdebug(" %sAdditional Info: %sRecAdInfo", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE);
|
|
printdebug(" %snumberOfElements: %s%d", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->RecAdInfo->numofelements);
|
|
if (tn->additionalinfo->RecAdInfo->recordScope == NULL) {
|
|
printdebug(" %srecordScope (line): %s(NULL)",
|
|
COLOR_YELLOW, COLOR_LIGHTBLUE);
|
|
} else {
|
|
printdebug(" %srecordScope (line): %s%d",
|
|
COLOR_YELLOW, COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->RecAdInfo->recordScope
|
|
->Line_Number);
|
|
}
|
|
} else if (tn->tag == TYPE_ARRAY_TYPE || tn->tag == TYPE_ARRAY) {
|
|
printdebug(" %sAdditional Info: %sArrayAdInfo", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE);
|
|
printdebug(" %snumberOfDimensions: %s%d", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->ArrayAdInfo->numofdimensions);
|
|
printdebug(
|
|
" %stypeOfArray: %s%s", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->ArrayAdInfo->typeofarray->theName);
|
|
} else if (tn->tag == TYPE_FUNCTION_TYPE) {
|
|
printdebug(" %sAdditional Info: %sFunTypeAdInfo",
|
|
COLOR_YELLOW, COLOR_LIGHTBLUE);
|
|
printdebug(
|
|
" %sparameter: %s%s", COLOR_YELLOW, COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->FunTypeAdInfo->parameter->theName);
|
|
printdebug(
|
|
" %sreturntype: %s%s", COLOR_YELLOW, COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->FunTypeAdInfo->returntype->theName);
|
|
} else if (tn->tag == TYPE_FUNCTION_DECLARATION) {
|
|
printdebug(" %sAdditional Info: %sFunDecAdInfo",
|
|
COLOR_YELLOW, COLOR_LIGHTBLUE);
|
|
printdebug(" %sstartLineNumber: %s%d", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->FunDecAdInfo->startlinenumber);
|
|
printdebug(" %sregularOrAs: %s%s", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->FunDecAdInfo->regularoras
|
|
? "true"
|
|
: "false");
|
|
} else if (tn->tag == TYPE_PRIMITIVE) {
|
|
printdebug(" %sAdditional Info: %sPrimAdInfo", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE);
|
|
printdebug(" %ssize: %s%d", COLOR_YELLOW,
|
|
COLOR_LIGHTBLUE,
|
|
tn->additionalinfo->PrimAdInfo->size);
|
|
} else {
|
|
printdebug(" AdInfo not handled.");
|
|
}
|
|
|
|
return tn;
|
|
}
|