Allow a * on a CString to get the first character.

[cycript.git] / Complete.cpp

diff --git a/Complete.cpp b/Complete.cpp
index 75b80c0c542d007f1435078364c8c1c72ffbb921..820895c9c91776af12b040caace6244758274367 100644 (file)
--- a/Complete.cpp
+++ b/Complete.cpp
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
@@ -22,27 +22,24 @@
 #include "cycript.hpp"
 
 #include "Driver.hpp"
-#include "Cycript.tab.hh"
 #include "Replace.hpp"
 #include "String.hpp"
 
 static CYExpression *ParseExpression(CYPool &pool, CYUTF8String code) {
     std::stringstream stream;
     stream << '(' << code << ')';
-    CYDriver driver(pool, stream);
-
-    cy::parser parser(driver);
-    if (parser.parse() != 0 || !driver.errors_.empty())
+    CYDriver driver(pool, *stream.rdbuf());
+    if (driver.Parse() || !driver.errors_.empty())
         return NULL;
 
     CYOptions options;
     CYContext context(options);
 
-    CYStatement *statement(driver.program_->code_);
+    CYStatement *statement(driver.script_->code_);
     _assert(statement != NULL);
     _assert(statement->next_ == NULL);
 
-    CYExpress *express(dynamic_cast<CYExpress *>(driver.program_->code_));
+    CYExpress *express(dynamic_cast<CYExpress *>(driver.script_->code_));
     _assert(express != NULL);
 
     CYParenthetical *parenthetical(dynamic_cast<CYParenthetical *>(express->expression_));
@@ -54,13 +51,12 @@ static CYExpression *ParseExpression(CYPool &pool, CYUTF8String code) {
 _visible char **CYComplete(const char *word, const std::string &line, CYUTF8String (*run)(CYPool &pool, const std::string &)) {
     CYLocalPool pool;
 
-    std::istringstream stream(line);
+    std::stringbuf stream(line);
     CYDriver driver(pool, stream);
 
     driver.auto_ = true;
 
-    cy::parser parser(driver);
-    if (parser.parse() != 0 || !driver.errors_.empty())
+    if (driver.Parse() || !driver.errors_.empty())
         return NULL;
 
     if (driver.mode_ == CYDriver::AutoNone)
@@ -93,30 +89,59 @@ _visible char **CYComplete(const char *word, const std::string &line, CYUTF8Stri
                 prefix << (*part)->word_ << ':';
         } break;
 
+        case CYDriver::AutoResolve:
+            expression = $M(driver.context_, $S("$cyr"));
+        break;
+
+        case CYDriver::AutoStruct:
+            expression = $ CYThis();
+            prefix << "$cys";
+        break;
+
+        case CYDriver::AutoEnum:
+            expression = $ CYThis();
+            prefix << "$cye";
+        break;
+
         default:
             _assert(false);
     }
 
     std::string begin(prefix.str());
 
-    driver.program_ = $ CYProgram($ CYExpress($C3(ParseExpression(pool,
+    driver.script_ = $ CYScript($ CYExpress($C3(ParseExpression(pool,
     "   function(object, prefix, word) {\n"
     "       var names = [];\n"
     "       var before = prefix.length;\n"
     "       prefix += word;\n"
     "       var entire = prefix.length;\n"
-    "       for (var name in object)\n"
-    "           if (name.substring(0, entire) == prefix)\n"
-    "               names.push(name.substr(before));\n"
+    "       if (false) {\n"
+    "           for (var name in object)\n"
+    "               if (name.substring(0, entire) == prefix)\n"
+    "                   names.push(name);\n"
+    "       } else do {\n"
+    "           if (object.hasOwnProperty(\"cy$complete\")) {\n"
+    "               names = names.concat(object.cy$complete(prefix));\n"
+    "               continue;\n"
+    "           }\n"
+    "           try {\n"
+    "               var local = Object.getOwnPropertyNames(object);\n"
+    "           } catch (e) {\n"
+    "               continue;\n"
+    "           }\n"
+    "           for (var name of local)\n"
+    "               if (name.substring(0, entire) == prefix)\n"
+    "                   names.push(name);\n"
+    "       } while (object = typeof object === 'object' ? Object.getPrototypeOf(object) : object.__proto__);\n"
     "       return names;\n"
     "   }\n"
     ), expression, $S(begin.c_str()), $S(word))));
 
-    driver.program_->Replace(context);
+    driver.script_->Replace(context);
 
     std::stringbuf str;
     CYOutput out(str, options);
-    out << *driver.program_;
+    out << *driver.script_;
 
     std::string code(str.str());
     CYUTF8String json(run(pool, code));
@@ -131,37 +156,46 @@ _visible char **CYComplete(const char *word, const std::string &line, CYUTF8Stri
         return NULL;
 
     // XXX: use an std::set?
-    typedef std::vector<std::string> Completions;
+    typedef std::vector<CYUTF8String> Completions;
     Completions completions;
 
     std::string common;
     bool rest(false);
 
-    CYForEach (element, array->elements_) {
-        CYString *string(dynamic_cast<CYString *>(element->value_));
+    for (CYElement *element(array->elements_); element != NULL; ) {
+        CYElementValue *value(dynamic_cast<CYElementValue *>(element));
+        _assert(value != NULL);
+        element = value->next_;
+
+        CYString *string(dynamic_cast<CYString *>(value->value_));
         _assert(string != NULL);
 
-        std::string completion;
+        CYUTF8String completion;
         if (string->size_ != 0)
-            completion.assign(string->value_, string->size_);
+            completion = {string->value_, string->size_};
         else if (driver.mode_ == CYDriver::AutoMessage)
             completion = "]";
         else
             continue;
 
+        completion.data += begin.size();
+        completion.size -= begin.size();
+
+        if (CYStartsWith(completion, "$cy"))
+            continue;
         completions.push_back(completion);
 
         if (!rest) {
             common = completion;
             rest = true;
         } else {
-            size_t limit(completion.size()), size(common.size());
+            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])
+                if (common[limit] != completion.data[limit])
                     break;
             if (limit != size)
                 common = common.substr(0, limit);
@@ -183,7 +217,7 @@ _visible char **CYComplete(const char *word, const std::string &line, CYUTF8Stri
     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[++index] = strdup(i->data);
     results[count + 1] = NULL;
 
     return results;