151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpyconfig.h"
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#include "lexer.h"
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#include "lexerunix.h"
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#include "parse.h"
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#include "compile.h"
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#include "runtime.h"
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#include "repl.h"
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#include <readline/readline.h>
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char *str_join(const char *s1, int sep_char, const char *s2) {
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int l1 = strlen(s1);
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int l2 = strlen(s2);
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char *s = m_new(char, l1 + l2 + 2);
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memcpy(s, s1, l1);
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if (sep_char != 0) {
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s[l1] = sep_char;
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l1 += 1;
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}
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memcpy(s + l1, s2, l2);
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s[l1 + l2] = 0;
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return s;
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}
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void do_repl() {
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for (;;) {
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char *line = readline(">>> ");
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if (line == NULL) {
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// EOF
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return;
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}
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if (py_repl_is_compound_stmt(line)) {
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for (;;) {
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char *line2 = readline("... ");
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if (line2 == NULL || strlen(line2) == 0) {
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break;
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}
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char *line3 = str_join(line, '\n', line2);
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m_free(line);
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m_free(line2);
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line = line3;
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}
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}
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py_lexer_t *lex = py_lexer_new_from_str_len("<stdin>", line, strlen(line), false);
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py_parse_node_t pn = py_parse(lex, PY_PARSE_SINGLE_INPUT);
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py_lexer_free(lex);
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if (pn != PY_PARSE_NODE_NULL) {
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//py_parse_node_show(pn, 0);
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bool comp_ok = py_compile(pn, true);
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if (comp_ok) {
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py_obj_t module_fun = rt_make_function_from_id(1);
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if (module_fun != py_const_none) {
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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rt_call_function_0(module_fun);
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nlr_pop();
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} else {
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// uncaught exception
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py_obj_print((py_obj_t)nlr.ret_val);
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printf("\n");
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}
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}
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}
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}
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}
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}
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void do_file(const char *file) {
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py_lexer_t *lex = py_lexer_new_from_file(file);
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//const char *pysrc = "def f():\n x=x+1\n print(42)\n";
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//py_lexer_t *lex = py_lexer_from_str_len("<>", pysrc, strlen(pysrc), false);
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if (lex == NULL) {
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return;
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}
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if (0) {
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// just tokenise
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while (!py_lexer_is_kind(lex, PY_TOKEN_END)) {
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py_token_show(py_lexer_cur(lex));
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py_lexer_to_next(lex);
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}
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py_lexer_free(lex);
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} else {
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// compile
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py_parse_node_t pn = py_parse(lex, PY_PARSE_FILE_INPUT);
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py_lexer_free(lex);
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if (pn != PY_PARSE_NODE_NULL) {
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//printf("----------------\n");
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//parse_node_show(pn, 0);
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//printf("----------------\n");
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bool comp_ok = py_compile(pn, false);
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//printf("----------------\n");
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#if MICROPY_EMIT_CPYTHON
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if (!comp_ok) {
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printf("compile error\n");
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}
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#else
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if (1 && comp_ok) {
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// execute it
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py_obj_t module_fun = rt_make_function_from_id(1);
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if (module_fun != py_const_none) {
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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py_obj_t ret = rt_call_function_0(module_fun);
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printf("done! got: ");
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py_obj_print(ret);
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printf("\n");
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nlr_pop();
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} else {
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// uncaught exception
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printf("exception: ");
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py_obj_print((py_obj_t)nlr.ret_val);
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printf("\n");
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}
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}
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}
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#endif
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}
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}
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}
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int main(int argc, char **argv) {
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qstr_init();
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rt_init();
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if (argc == 1) {
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do_repl();
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} else if (argc == 2) {
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do_file(argv[1]);
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} else {
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printf("usage: py [<file>]\n");
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return 1;
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}
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rt_deinit();
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//printf("total bytes = %d\n", m_get_total_bytes_allocated());
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return 0;
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}
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