]> git.saurik.com Git - cycript.git/blobdiff - Console.cpp
Limit recompilation of files upon changed grammar.
[cycript.git] / Console.cpp
index 9e84912f8a9b2b6e6d8b2bbd674fe1ac6b14338b..57f437555c13467b3bae0e7cb222834e4cb7951e 100644 (file)
 
 #include <dlfcn.h>
 
-#include "Display.hpp"
-#include "Replace.hpp"
+#ifdef __APPLE__
+#include <mach/mach_time.h>
+#endif
 
-#include "Cycript.tab.hh"
+#include "Display.hpp"
 #include "Driver.hpp"
+#include "Highlight.hpp"
+#include "Parser.hpp"
 
 static volatile enum {
     Working,
@@ -85,7 +88,8 @@ static void sigint(int) {
         case Parsing:
             longjmp(ctrlc_, 1);
         case Running:
-            throw "*** Ctrl-C";
+            CYCancel();
+            return;
         case Sending:
             return;
         case Waiting:
@@ -93,26 +97,22 @@ static void sigint(int) {
     }
 }
 
-#if YYDEBUG
 static bool bison_;
-#endif
+static bool timing_;
 static bool strict_;
 static bool pretty_;
 
-void Setup(CYDriver &driver, cy::parser &parser) {
-#if YYDEBUG
+void Setup(CYDriver &driver) {
     if (bison_)
-        parser.set_debug_level(1);
-#endif
+        driver.debug_ = 1;
     if (strict_)
         driver.strict_ = true;
 }
 
 void Setup(CYOutput &out, CYDriver &driver, CYOptions &options, bool lower) {
     out.pretty_ = pretty_;
-    CYContext context(options);
     if (lower)
-        driver.program_->Replace(context);
+        driver.Replace(options);
 }
 
 static CYUTF8String Run(CYPool &pool, int client, CYUTF8String code) {
@@ -211,182 +211,21 @@ int (*append_history$)(int, const char *);
 
 static std::string command_;
 
-static CYExpression *ParseExpression(CYUTF8String code) {
-    std::stringstream stream;
-    stream << '(' << code << ')';
-    CYDriver driver(stream);
-
-    cy::parser parser(driver);
-    Setup(driver, parser);
-
-    if (parser.parse() != 0 || !driver.errors_.empty())
-        return NULL;
-
-    CYOptions options;
-    CYContext context(options);
-
-    CYStatement *statement(driver.program_->statements_);
-    _assert(statement != NULL);
-    _assert(statement->next_ == NULL);
-
-    CYExpress *express(dynamic_cast<CYExpress *>(driver.program_->statements_));
-    _assert(express != NULL);
+static int client_;
 
-    return express->expression_;
+static CYUTF8String Run(CYPool &pool, const std::string &code) {
+    return Run(pool, client_, code);
 }
 
-static int client_;
-
 static char **Complete(const char *word, int start, int end) {
     rl_attempted_completion_over = ~0;
-
-    CYLocalPool pool;
-
     std::string line(rl_line_buffer, start);
-    std::istringstream stream(command_ + line);
-    CYDriver driver(stream);
-
-    driver.auto_ = true;
-
-    cy::parser parser(driver);
-    Setup(driver, parser);
-
-    if (parser.parse() != 0 || !driver.errors_.empty())
-        return NULL;
-
-    if (driver.mode_ == CYDriver::AutoNone)
-        return NULL;
-
-    CYExpression *expression;
-
-    CYOptions options;
-    CYContext context(options);
-
-    std::ostringstream prefix;
-
-    switch (driver.mode_) {
-        case CYDriver::AutoPrimary:
-            expression = $ CYThis();
-        break;
-
-        case CYDriver::AutoDirect:
-            expression = driver.context_;
-        break;
-
-        case CYDriver::AutoIndirect:
-            expression = $ CYIndirect(driver.context_);
-        break;
-
-        case CYDriver::AutoMessage: {
-            CYDriver::Context &thing(driver.contexts_.back());
-            expression = $M($C1($V("object_getClass"), thing.context_), $S("messages"));
-            for (CYDriver::Context::Words::const_iterator part(thing.words_.begin()); part != thing.words_.end(); ++part)
-                prefix << (*part)->word_ << ':';
-        } break;
-
-        default:
-            _assert(false);
-    }
-
-    std::string begin(prefix.str());
-
-    driver.program_ = $ CYProgram($ CYExpress($C3(ParseExpression(
-    "   function(object, prefix, word) {\n"
-    "       var names = [];\n"
-    "       var before = prefix.length;\n"
-    "       prefix += word;\n"
-    "       var entire = prefix.length;\n"
-    "       for (var name in object)\n"
-    "           if (name.substring(0, entire) == prefix)\n"
-    "               names.push(name.substr(before));\n"
-    "       return names;\n"
-    "   }\n"
-    ), expression, $S(begin.c_str()), $S(word))));
-
-    driver.program_->Replace(context);
-
-    std::ostringstream str;
-    CYOutput out(str, options);
-    out << *driver.program_;
-
-    std::string code(str.str());
-    CYUTF8String json(Run(pool, client_, code));
-    // XXX: if this fails we should not try to parse it
-
-    CYExpression *result(ParseExpression(json));
-    if (result == NULL)
-        return NULL;
-
-    CYArray *array(dynamic_cast<CYArray *>(result->Primitive(context)));
-    if (array == NULL) {
-        *out_ << '\n';
-        Output(false, json, out_);
-        rl_forced_update_display();
-        return NULL;
-    }
-
-    // XXX: use an std::set?
-    typedef std::vector<std::string> Completions;
-    Completions completions;
-
-    std::string common;
-    bool rest(false);
-
-    CYForEach (element, array->elements_) {
-        CYString *string(dynamic_cast<CYString *>(element->value_));
-        _assert(string != NULL);
-
-        std::string completion;
-        if (string->size_ != 0)
-            completion.assign(string->value_, string->size_);
-        else if (driver.mode_ == CYDriver::AutoMessage)
-            completion = "]";
-        else
-            continue;
-
-        completions.push_back(completion);
-
-        if (!rest) {
-            common = completion;
-            rest = true;
-        } else {
-            size_t limit(completion.size()), size(common.size());
-            if (size > limit)
-                common = common.substr(0, limit);
-            else
-                limit = size;
-            for (limit = 0; limit != size; ++limit)
-                if (common[limit] != completion[limit])
-                    break;
-            if (limit != size)
-                common = common.substr(0, limit);
-        }
-    }
-
-    size_t count(completions.size());
-    if (count == 0)
-        return NULL;
-
-    size_t colon(common.find(':'));
-    if (colon != std::string::npos)
-        common = common.substr(0, colon + 1);
-    if (completions.size() == 1)
-        common += ' ';
-
-    char **results(reinterpret_cast<char **>(malloc(sizeof(char *) * (count + 2))));
-
-    results[0] = strdup(common.c_str());
-    size_t index(0);
-    for (Completions::const_iterator i(completions.begin()); i != completions.end(); ++i)
-        results[++index] = strdup(i->c_str());
-    results[count + 1] = NULL;
-
-    return results;
+    return CYComplete(word, command_ + line, &Run);
 }
 
 // need char *, not const char *
 static char name_[] = "cycript";
-static char break_[] = " \t\n\"\\'`@$><=;|&{(" ")}" ".:[]";
+static char break_[] = " \t\n\"\\'`@><=;|&{(" ")}" ".:[]";
 
 class History {
   private:
@@ -412,7 +251,7 @@ class History {
     }
 
     void operator +=(const std::string &command) {
-        add_history(command_.c_str());
+        add_history(command.c_str());
         ++histlines_;
     }
 };
@@ -526,6 +365,7 @@ static void Console(CYOptions &options) {
         }
 
         command_ += line;
+        command_ += "\n";
 
         char *begin(line), *end(line + strlen(line));
         while (char *nl = reinterpret_cast<char *>(memchr(begin, '\n', end - begin))) {
@@ -543,18 +383,18 @@ static void Console(CYOptions &options) {
         if (bypass)
             code = command_;
         else {
-            CYLocalPool pool;
-
             std::istringstream stream(command_);
-            CYDriver driver(stream);
 
-            cy::parser parser(driver);
-            Setup(driver, parser);
+            CYPool pool;
+            CYDriver driver(pool, stream);
+            Setup(driver);
 
-            if (parser.parse() != 0 || !driver.errors_.empty()) {
+            bool failed(driver.Parse());
+
+            if (failed || !driver.errors_.empty()) {
                 for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
                     CYPosition begin(error->location_.begin);
-                    if (begin.line != lines.size() || begin.column < lines.back().size() || error->warning_) {
+                    if (begin.line != lines.size() + 1 || error->warning_) {
                         CYPosition end(error->location_.end);
 
                         if (begin.line != lines.size()) {
@@ -574,29 +414,28 @@ static void Console(CYOptions &options) {
                         std::cerr << "  | ";
                         std::cerr << error->message_ << std::endl;
 
-                        history += command_;
+                        history += command_.substr(0, command_.size() - 1);
                         goto restart;
                     }
                 }
 
                 driver.errors_.clear();
 
-                command_ += '\n';
                 prompt = "cy> ";
                 goto read;
             }
 
-            if (driver.program_ == NULL)
+            if (driver.script_ == NULL)
                 goto restart;
 
-            std::ostringstream str;
+            std::stringbuf str;
             CYOutput out(str, options);
             Setup(out, driver, options, lower);
-            out << *driver.program_;
+            out << *driver.script_;
             code = str.str();
         }
 
-        history += command_;
+        history += command_.substr(0, command_.size() - 1);
 
         if (debug) {
             std::cout << "cy= ";
@@ -608,7 +447,17 @@ static void Console(CYOptions &options) {
     }
 }
 
-void InjectLibrary(pid_t, int, const char *[]);
+void InjectLibrary(pid_t, int, const char *const []);
+
+static uint64_t CYGetTime() {
+#ifdef __APPLE__
+    return mach_absolute_time();
+#else
+    struct timespec spec;
+    clock_gettime(CLOCK_MONOTONIC, &spec);
+    return spec.tv_sec * UINT64_C(1000000000) + spec.tv_nsec;
+#endif
+}
 
 int Main(int argc, char * const argv[], char const * const envp[]) {
     bool tty(isatty(STDIN_FILENO));
@@ -685,10 +534,10 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
                 if (false);
                 else if (strcmp(optarg, "rename") == 0)
                     options.verbose_ = true;
-#if YYDEBUG
                 else if (strcmp(optarg, "bison") == 0)
                     bison_ = true;
-#endif
+                else if (strcmp(optarg, "timing") == 0)
+                    timing_ = true;
                 else {
                     fprintf(stderr, "invalid name for -g\n");
                     return 1;
@@ -715,7 +564,8 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
                     // XXX: arg needs to be escaped in some horrendous way of doom
                     // XXX: this is a memory leak now because I just don't care enough
                     char *command;
-                    asprintf(&command, "ps axc|sed -e '/^ *[0-9]/{s/^ *\\([0-9]*\\)\\( *[^ ]*\\)\\{3\\} *-*\\([^ ]*\\)/\\3 \\1/;/^%s /{s/^[^ ]* //;q;};};d'", optarg);
+                    int writ(asprintf(&command, "ps axc|sed -e '/^ *[0-9]/{s/^ *\\([0-9]*\\)\\( *[^ ]*\\)\\{3\\} *-*\\([^ ]*\\)/\\3 \\1/;/^%s /{s/^[^ ]* //;q;};};d'", optarg));
+                    _assert(writ != -1);
 
                     if (FILE *pids = popen(command, "r")) {
                         char value[32];
@@ -863,7 +713,8 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
         _syscall(chmod(address.sun_path, 0777));
 
         _syscall(listen(server, 1));
-        InjectLibrary(pid, 1, (const char *[]) {address.sun_path, NULL});
+        const char *const argv[] = {address.sun_path, NULL};
+        InjectLibrary(pid, 1, argv);
         client_ = _syscall(accept(server, NULL, NULL));
     }
 #else
@@ -901,8 +752,6 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
     if (script == NULL && tty)
         Console(options);
     else {
-        CYLocalPool pool;
-
         std::istream *stream;
         if (script == NULL) {
             stream = &std::cin;
@@ -912,18 +761,58 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
             _assert(!stream->fail());
         }
 
-        CYDriver driver(*stream, script);
-        cy::parser parser(driver);
-        Setup(driver, parser);
+        if (timing_) {
+            std::stringbuf buffer;
+            stream->get(buffer, '\0');
+            _assert(!stream->fail());
+
+            double average(0);
+            int samples(-50);
+            uint64_t start(CYGetTime());
+
+            for (;;) {
+                stream = new std::istringstream(buffer.str());
+
+                CYPool pool;
+                CYDriver driver(pool, *stream, script);
+                Setup(driver);
+
+                uint64_t begin(CYGetTime());
+                driver.Parse();
+                uint64_t end(CYGetTime());
+
+                delete stream;
+
+                average += (end - begin - average) / ++samples;
+
+                uint64_t now(CYGetTime());
+                if (samples == 0)
+                    average = 0;
+                else if ((now - start) / 1000000000 >= 1)
+                    std::cout << std::fixed << average << '\t' << (end - begin) << '\t' << samples << std::endl;
+                else continue;
+
+                start = now;
+            }
+
+            stream = new std::istringstream(buffer.str());
+            std::cin.get();
+        }
+
+        CYPool pool;
+        CYDriver driver(pool, *stream, script);
+        Setup(driver);
+
+        bool failed(driver.Parse());
 
-        if (parser.parse() != 0 || !driver.errors_.empty()) {
+        if (failed || !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.program_ != NULL) {
-            std::ostringstream str;
+        } else if (driver.script_ != NULL) {
+            std::stringbuf str;
             CYOutput out(str, options);
             Setup(out, driver, options, true);
-            out << *driver.program_;
+            out << *driver.script_;
             std::string code(str.str());
             if (compile)
                 std::cout << code;