Worked on interpreter

This commit is contained in:
Kyler Olsen 2025-11-28 21:19:59 -07:00
parent c100bfcf7b
commit 382842540a
5 changed files with 39 additions and 6 deletions

View File

@ -54,11 +54,11 @@ typedef struct StackItem {
typedef struct {
StackItem *stack;
HashTable functions;
HashTable *functions;
} InterpreterState;
void execute(InterpreterState *interpreter_state, LexerTokenResult *token);
InterpreterState *interpreter_create();
void execute(InterpreterState *interpreter, LexerTokenResult *token);
void interpreter_delete(InterpreterState *interpreter);
void interpreter_delete(InterpreterState *interpreter_state);
#endif // SLS_INTERPRETER_H

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@ -157,6 +157,7 @@ typedef struct {
TokenString copy_token_string(TokenString token_string);
void init_lexer(LexerInfo *lexer_info, SlsStr filename, SlsStr source_code);
LexerTokenResult *get_token(LexerTokenResult *head, size_t i);
void clean_token_string(TokenString token_string);
void clean_token_result(LexerTokenResult *head);
LexerResult lexical_analysis(LexerInfo *lexer_info);

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@ -6,6 +6,9 @@
#include "sls/string.h"
#include "sls/interpreter.h"
#include "sls/lexer.h"
#include "sls/hash_table.h"
static const size_t HASH_TABLE_BUCKET_COUNT = 256;
const char *STACK_TYPES_NAMES[] = {
"Identifier",
@ -33,3 +36,29 @@ static Boolean hash_table_put_funcs(HashTable *ht, SlsStr key, TokenString *item
static TokenString* hash_table_get_funcs(const HashTable *ht, SlsStr key, TokenString *default_item) {
return (TokenString*)hash_table_get(ht, key, (void *)default_item);
}
void execute(InterpreterState *interpreter_state, LexerTokenResult *token) {
}
InterpreterState *interpreter_create() {
InterpreterState *interpreter_state = (InterpreterState *)malloc(sizeof(InterpreterState));
interpreter_state->stack = NULL;
interpreter_state->functions = init_hash_table(HASH_TABLE_BUCKET_COUNT);
return interpreter_state;
}
static void clean_stack(StackItem *item) {
if (item == NULL) return;
if (item->type == STACK_TOKEN_STRING)
clean_token_string(item->token_string);
clean_stack(item->next);
free(item);
}
void interpreter_delete(InterpreterState *interpreter_state) {
clean_stack(interpreter_state->stack);
del_hash_table(interpreter_state->functions);
free(interpreter_state);
}

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@ -907,7 +907,7 @@ static LexerResult lexer_next(LexerInfo *lexer_info) {
return lexer_error(lexer_info, error_msg, start, start_line);
}
static void clean_token_string(TokenString token_string) {
void clean_token_string(TokenString token_string) {
if (token_string.tokens == NULL) return;
for (size_t i = 0; i < token_string.length; i++) {
if (token_string.tokens[i].type == TOKEN_STRING)

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@ -24,14 +24,15 @@ int repl(int argc, char *argv[]) {
print_version();
printf("===== YREA SLS REPL =====\n");
printf("Type `#exit` to exit.\n");
fflush(stdout);
LexerInfo lexer_info;
InterpreterState *interpreter_state = interpreter_create();
char buf[BUFFER_SIZE];
while (fgets(buf, sizeof buf, stdin)) {
while (fgets(buf, BUFFER_SIZE, stdin)) {
size_t len = strlen(buf);
if (len && buf[len - 1] == '\n') buf[len - 1] = '\0';
if (strncmp("#exit", buf, BUFFER_SIZE) == 0) {
if (strncmp(buf, "#exit", 5) == 0) {
interpreter_delete(interpreter_state);
return 0;
}
@ -41,6 +42,7 @@ int repl(int argc, char *argv[]) {
LexerResult result = lexical_analysis(&lexer_info);
if (result.type == SLS_ERROR) {
printf("%s\n", result.error.message.str);
sls_str_free(&result.error.message);
} else {
LexerTokenResult *head = result.result;
while (head) {
@ -51,6 +53,7 @@ int repl(int argc, char *argv[]) {
execute(interpreter_state, head);
head = head->next;
}
clean_token_result(result.result);
}
sls_str_free(&code);
}