mirror of
https://github.com/janet-lang/janet
synced 2024-10-02 16:50:41 +00:00
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <gst/gst.h>
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#include <gst/parse.h>
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#include <gst/compile.h>
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#include <gst/stl.h>
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#include <gst/disasm.h>
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/* Parse a file and execute it */
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int debug_run(Gst *vm, FILE *in) {
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char buffer[1024] = {0};
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const char *reader = buffer;
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GstValue func;
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GstParser p;
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GstCompiler c;
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gst_parser(&p, vm);
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/* Create do struct */
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GstArray *arr = gst_array(vm, 10);
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gst_array_push(vm, arr, gst_string_cv(vm, "do"));
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/* Get and parse input until we have a full form */
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while (p.status != GST_PARSER_ERROR) {
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if (*reader == '\0') {
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if (!fgets(buffer, sizeof(buffer), in)) {
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break;
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}
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reader = buffer;
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}
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reader += gst_parse_cstring(&p, reader);
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if (gst_parse_hasvalue(&p))
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gst_array_push(vm, arr, gst_parse_consume(&p));
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}
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/* Turn array into tuple */
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GstValue *tup = gst_tuple_begin(vm, arr->count);
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gst_memcpy(tup, arr->data, arr->count * sizeof(GstValue));
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vm->ret.type = GST_TUPLE;
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vm->ret.data.tuple = gst_tuple_end(vm, tup);
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/* Check if file read in correctly */
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if (p.error) {
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printf("Parse error: %s\n", p.error);
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return 1;
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}
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/* Check that parser is complete */
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if (p.status != GST_PARSER_FULL && p.status != GST_PARSER_ROOT) {
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printf("Unexpected end of source\n");
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return 1;
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}
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/* Try to compile generated AST */
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gst_compiler(&c, vm);
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func.type = GST_NIL;
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gst_compiler_usemodule(&c, "std");
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func.type = GST_FUNCTION;
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func.data.function = gst_compiler_compile(&c, vm->ret);
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/* Check for compilation errors */
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if (c.error) {
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printf("Compiler error: %s\n", c.error);
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return 1;
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}
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/* Execute function */
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if (gst_run(vm, func)) {
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if (vm->crash) {
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printf("VM crash: %s\n", vm->crash);
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} else {
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printf("VM error: %s\n", (char *)gst_to_string(vm, vm->ret));
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}
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return 1;
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}
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return 0;
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}
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int main(int argc, const char **argv) {
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Gst vm;
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int status = 0;
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gst_init(&vm);
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gst_stl_load(&vm);
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const char *filename;
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// if (argc > 1) {
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// filename = argv[1];
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//} else {
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filename = "libs/stl.gst";
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//}
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FILE *f = fopen(filename, "rb");
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status = debug_run(&vm, f);
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gst_deinit(&vm);
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return status;
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}
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