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path: root/tests/test_parsing.py
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import unittest

from crowbar_reference_compiler import parse_header, parse_implementation, scan


class TestParsing(unittest.TestCase):
    def test_basic(self):
        print(parse_header(scan("int8 x();")))

    def test_scdoc_str(self):
        # adapted from https://git.sr.ht/~sircmpwn/scdoc/tree/master/include/str.h
        print(parse_header(scan(r"""
struct str {
    (uint8[size])* str;
    uintsize len;
    uintsize size;
}

struct str *str_create();
void str_free(struct str *str);
void str_reset(struct str *str);
intsize str_append_ch(struct str *str, uint32 ch);
""")))
        # adapted from https://git.sr.ht/~sircmpwn/scdoc/tree/master/src/string.c
        print(parse_implementation(scan(r"""
include "stdlib.hro";
include "stdint.hro";
include "str.hro";
include "unicode.hro";

bool ensure_capacity(struct str *str, intsize len) {
    if (len + 1 >= str->size) {
        (uint8[str->size * 2])* new = realloc(str->str, str->size * 2);
        if (!new) {
            return false;
        }
        str->str = new;
        str->size *= 2;
    }
    return true;
}

struct str *str_create() {
    struct str *str = calloc(1, sizeof(struct str));
    str->str = malloc(16);
    str->size = 16;
    str->len = 0;
    str->str[0] = '\0';
    return str;
}

void str_free(struct str *str) {
    if (!str) {
        return;
    }
    free(str->str);
    free(str);
}

intsize str_append_ch(struct str *str, uint32 ch) {
    intsize size = utf8_chsize(ch);
    if (size <= 0) {
        return -1;
    }
    if (!ensure_capacity(str, str->len + size)) {
        return -1;
    }
    utf8_encode(&str->str[str->len], ch);
    str->len += size;
    str->str[str->len] = '\0';
    return size;
}
""")))