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add if statements

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This commit is contained in:
William Bell
2025-06-03 13:24:12 +01:00
parent ef61c391a1
commit 18993a5d7e
16 changed files with 148 additions and 26 deletions
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26
src/parser/parser.c
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@@ -2,8 +2,9 @@
#include "../dynamic_array/darray.h"
#include "../lexer/token.h"
#include "assign/assign.h"
#include "number/number.h"
#include "identifier/identifier.h"
#include "if/if.h"
#include "number/number.h"
#include "string/string.h"
#include <stdbool.h>
#include <stddef.h>
@@ -11,13 +12,24 @@
#include <stdlib.h>
#include <string.h>
const char *ValueTypeNames[] = {"string", "assign", "identifier", "number"};
const char *ValueTypeNames[] = {"string", "assign", "identifier", "number", "if statement"};
void error_if_finished(char *file, DArray *tokens, size_t *index) {
if ((*index) >= tokens->size) {
Token *token = darray_get(tokens, tokens->size - 1);
fprintf(stderr, "%s:%u:%u error: syntax error\n", file, token->line,
token->column);
exit(EXIT_FAILURE);
}
}
ParsedValue *parse_token(char *file, DArray *parsed, DArray *tokens,
size_t *index, bool inline_flag) {
Token *token = darray_get(tokens, *index);
if (!inline_flag) {
switch (token->type) {
case TOKEN_IF:
return parse_if(file, parsed, tokens, index);
default:
break;
};
@@ -70,9 +82,9 @@ ParsedValue *parse_token(char *file, DArray *parsed, DArray *tokens,
token->column);
exit(EXIT_FAILURE);
}
ParsedValue *assigning_to = darray_get(parsed, parsed->size-1);
ParsedValue *assigning_to = darray_get(parsed, parsed->size - 1);
fprintf(stderr, "%s:%u:%u error: cannot assign to %s\n", file, token->line,
token->column, ValueTypeNames[assigning_to->type]);
token->column, ValueTypeNames[assigning_to->type]);
exit(EXIT_FAILURE);
case TOKEN_NUMBER:
(*index)++;
@@ -85,8 +97,7 @@ ParsedValue *parse_token(char *file, DArray *parsed, DArray *tokens,
void parser(char *file, DArray *parsed, DArray *tokens, bool inline_flag) {
size_t index = 0;
size_t length = tokens->size;
while (index < length) {
while (index < tokens->size) {
ParsedValue *parsed_code =
parse_token(file, parsed, tokens, &index, inline_flag);
if (parsed_code) {
@@ -108,5 +119,8 @@ void free_parsed(void *ptr) {
break;
case AST_NUMBER:
break;
case AST_IF:
free_parsed_if(parsed);
break;
}
}