Don't optimize {} to ; in the parser.

[cycript.git] / Replace.cpp

diff --git a/Replace.cpp b/Replace.cpp
index 88d277a15d6e1ab6aa57232c47fbba414e16ff86..353894483deed0a2e58693bf937466d30561c50d 100644 (file)
--- a/Replace.cpp
+++ b/Replace.cpp
@@ -1,40 +1,22 @@
-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009  Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010  Jay Freeman (saurik)
 */
 
-/* Modified BSD License {{{ */
+/* GNU Lesser General Public License, Version 3 {{{ */
 /*
- *        Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
+ * Cycript is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
  *
- * 1. Redistributions of source code must retain the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer in the documentation
- *    and/or other materials provided with the
- *    distribution.
- * 3. The name of the author may not be used to endorse
- *    or promote products derived from this software
- *    without specific prior written permission.
+ * Cycript is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+**/
 /* }}} */
 
 #include "Parser.hpp"
@@ -154,8 +136,10 @@ CYStatement *CYComment::Replace(CYContext &context) {
 }
 
 CYExpression *CYCompound::Replace(CYContext &context) {
-    expressions_ = expressions_->ReplaceAll(context);
-    return expressions_ == NULL ? NULL : this;
+    CYExpression **last(&expressions_);
+    for (CYExpression *next(expressions_); next != NULL; next = next->next_)
+        last = &(*last = next->Replace(context))->next_;
+    return this;
 }
 
 CYFunctionParameter *CYComprehension::Parameters(CYContext &context) const { $T(NULL)
@@ -194,7 +178,7 @@ void CYContext::NonLocal(CYStatement *&statements) {
                     $ CYReturn($M($V(cye), $S("$cyv"))))->*
                 $ cy::Syntax::Throw($V(cye))));
 
-        declare = declare->Replace(context);
+        context.Replace(declare);
         rescue->Replace(context);
 
         statements = $$->*
@@ -301,18 +285,6 @@ CYExpression *CYExpression::ForEachIn(CYContext &context) {
     return this;
 }
 
-CYExpression *CYExpression::ReplaceAll(CYContext &context) { $T(NULL)
-    CYExpression *replace(this);
-    context.Replace(replace);
-
-    if (CYExpression *next = next_->ReplaceAll(context))
-        replace->SetNext(next);
-    else
-        replace->SetNext(next_);
-
-    return replace;
-}
-
 CYNumber *CYFalse::Number(CYContext &context) {
     return $D(0);
 }
@@ -423,7 +395,7 @@ CYExpression *CYFunctionExpression::Replace(CYContext &context) {
 }
 
 CYFunctionParameter *CYFunctionParameter::Replace(CYContext &context, CYBlock &code) {
-    name_ = name_->Replace(context);
+    context.Replace(name_);
     context.scope_->Declare(context, name_, CYIdentifierArgument);
     if (next_ != NULL)
         next_ = next_->Replace(context, code);
@@ -531,7 +503,7 @@ CYExpression *CYObject::Replace(CYContext &context) {
 CYFunctionParameter *CYOptionalFunctionParameter::Replace(CYContext &context, CYBlock &code) {
     CYFunctionParameter *parameter($ CYFunctionParameter(name_, next_));
     parameter = parameter->Replace(context, code);
-    initializer_ = initializer_->Replace(context);
+    context.Replace(initializer_);
 
     CYVariable *name($V(name_));
     code.AddPrev($ CYIf($ CYIdentical($ CYTypeOf(name), $S("undefined")), $$->*
@@ -850,7 +822,7 @@ CYStatement *CYVar::Replace(CYContext &context) {
 }
 
 CYExpression *CYVariable::Replace(CYContext &context) {
-    name_ = name_->Replace(context);
+    context.Replace(name_);
     return this;
 }