-#define _GNU_SOURCE
-
-#include <substrate.h>
-#include "cycript.hpp"
-
-#include <cstdio>
-#include <sstream>
-
-#include <setjmp.h>
-
-#include <readline/readline.h>
-#include <readline/history.h>
-
-#include <sys/mman.h>
-
-#include <errno.h>
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "Cycript.tab.hh"
-
-static jmp_buf ctrlc_;
-
-void sigint(int) {
- longjmp(ctrlc_, 1);
-}
-
-void Run(const char *code, FILE *fout) { _pooled
- JSStringRef script(JSStringCreateWithUTF8CString(code));
-
- JSContextRef context(CYGetJSContext());
-
- JSValueRef exception(NULL);
- JSValueRef result(JSEvaluateScript(context, script, NULL, NULL, 0, &exception));
- JSStringRelease(script);
-
- if (exception != NULL)
- result = exception;
-
- if (!JSValueIsUndefined(context, result)) {
- CFStringRef json;
-
- @try { json:
- json = CYCopyJSONString(context, result);
- } @catch (id error) {
- CYThrow(context, error, &result);
- goto json;
- }
-
- if (fout != NULL) {
- fputs([reinterpret_cast<const NSString *>(json) UTF8String], fout);
- fputs("\n", fout);
- fflush(fout);
- }
-
- CFRelease(json);
- }
-}
-
-void Console() {
- bool bypass(false);
- bool debug(false);
-
- FILE *fout(stdout);
-
- rl_bind_key('\t', rl_insert);
-
- struct sigaction action;
- sigemptyset(&action.sa_mask);
- action.sa_handler = &sigint;
- action.sa_flags = 0;
- sigaction(SIGINT, &action, NULL);
-
- restart: for (;;) {
- std::string command;
- std::vector<std::string> lines;
-
- bool extra(false);
- const char *prompt("cy# ");
-
- if (setjmp(ctrlc_) != 0) {
- fputs("\n", fout);
- fflush(fout);
- goto restart;
- }
-
- read:
- char *line(readline(prompt));
- if (line == NULL)
- break;
-
- if (!extra) {
- extra = true;
- if (line[0] == '\\') {
- std::string data(line + 1);
- if (data == "bypass") {
- bypass = !bypass;
- fprintf(fout, "bypass == %s\n", bypass ? "true" : "false");
- fflush(fout);
- } else if (data == "debug") {
- debug = !debug;
- fprintf(fout, "debug == %s\n", debug ? "true" : "false");
- fflush(fout);
- }
- add_history(line);
- goto restart;
- }
- }
-
- lines.push_back(line);
- command += line;
- free(line);
-
- std::string code;
-
- if (bypass)
- code = command;
- else {
- CYDriver driver("");
- cy::parser parser(driver);
-
- driver.data_ = command.c_str();
- driver.size_ = command.size();
-
- if (parser.parse() != 0 || !driver.errors_.empty()) {
- for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i) {
- cy::position begin(i->location_.begin);
- if (begin.line != lines.size() || begin.column - 1 != lines.back().size()) {
- std::cerr << i->message_ << std::endl;
- add_history(command.c_str());
- goto restart;
- }
- }
-
- driver.errors_.clear();
-
- command += '\n';
- prompt = "cy> ";
- goto read;
- }
-
- if (driver.source_ == NULL)
- goto restart;
-
- std::ostringstream str;
- driver.source_->Show(str);
- code = str.str();
- }
-
- add_history(command.c_str());
-
- if (debug)
- std::cout << code << std::endl;
-
- Run(code.c_str(), fout);
- }
-
- fputs("\n", fout);
- fflush(fout);
-}
-
-void *Map(const char *path, size_t *psize) {
- int fd;
- _syscall(fd = open(path, O_RDONLY));
-
- struct stat stat;
- _syscall(fstat(fd, &stat));
- size_t size(stat.st_size);
-
- *psize = size;
-
- void *base;
- _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
-
- _syscall(close(fd));
- return base;
-}
-
-int main(int argc, const char *argv[]) {
- const char *script;
-
- if (argc == 1)
- script = NULL;
- else {
- CYSetArgs(argc - 1, argv + 1);
- script = argv[1];
- }
-
- if (script == NULL || strcmp(script, "-") == 0)
- Console();
- else {
- CYDriver driver(script);
- cy::parser parser(driver);
-
- size_t size;
- char *start(reinterpret_cast<char *>(Map(script, &size)));
- char *end(start + size);
-
- if (size >= 2 && start[0] == '#' && start[1] == '!') {
- start += 2;
- while (start != end && *start++ != '\n');
- }
-
- driver.data_ = start;
- driver.size_ = end - start;
-
- if (parser.parse() != 0 || !driver.errors_.empty()) {
- for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i)
- std::cerr << i->location_.begin << ": " << i->message_ << std::endl;
- } else if (driver.source_ != NULL) {
- std::ostringstream str;
- driver.source_->Show(str);
- std::string code(str.str());
- std::cout << code << std::endl;
- Run(code.c_str(), stdout);
- }
- }
-
- return 0;
-}