1 files changed, 39 insertions, 10 deletions

diff --git a/js/src/jsscript.h b/js/src/jsscript.h
index bc8bda83d3..87da79901d 100644
--- a/js/src/jsscript.h
+++ b/js/src/jsscript.h
@@ -10,6 +10,7 @@
 #define jsscript_h
 
 #include "mozilla/Atomics.h"
+#include "mozilla/Maybe.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/PodOperations.h"
 #include "mozilla/Variant.h"
@@ -83,7 +84,9 @@ enum JSTryNoteKind {
     JSTRY_FINALLY,
     JSTRY_FOR_IN,
     JSTRY_FOR_OF,
-    JSTRY_LOOP
+    JSTRY_LOOP,
+    JSTRY_FOR_OF_ITERCLOSE,
+    JSTRY_DESTRUCTURING_ITERCLOSE
 };
 
 /*
@@ -399,6 +402,11 @@ class ScriptSource
     // scripts.
     uint32_t introductionOffset_;
 
+    // If this source is for Function constructor, the position of ")" after
+    // parameter list in the source.  This is used to get function body.
+    // 0 for other cases.
+    uint32_t parameterListEnd_;
+
     // If this ScriptSource was generated by a code-introduction mechanism such
     // as |eval| or |new Function|, the debugger needs access to the "raw"
     // filename of the top-level script that contains the eval-ing code.  To
@@ -428,7 +436,6 @@ class ScriptSource
     // demand. If sourceRetrievable_ and hasSourceData() are false, it is not
     // possible to get source at all.
     bool sourceRetrievable_:1;
-    bool argumentsNotIncluded_:1;
     bool hasIntroductionOffset_:1;
 
     const char16_t* chunkChars(JSContext* cx, UncompressedSourceCache::AutoHoldEntry& holder,
@@ -443,10 +450,10 @@ class ScriptSource
         sourceMapURL_(nullptr),
         mutedErrors_(false),
         introductionOffset_(0),
+        parameterListEnd_(0),
         introducerFilename_(nullptr),
         introductionType_(nullptr),
         sourceRetrievable_(false),
-        argumentsNotIncluded_(false),
         hasIntroductionOffset_(false)
     {
     }
@@ -461,10 +468,10 @@ class ScriptSource
         if (--refs == 0)
             js_delete(this);
     }
-    bool initFromOptions(ExclusiveContext* cx, const ReadOnlyCompileOptions& options);
+    bool initFromOptions(ExclusiveContext* cx, const ReadOnlyCompileOptions& options,
+                         mozilla::Maybe<uint32_t> parameterListEnd = mozilla::Nothing());
     bool setSourceCopy(ExclusiveContext* cx,
                        JS::SourceBufferHolder& srcBuf,
-                       bool argumentsNotIncluded,
                        SourceCompressionTask* tok);
     void setSourceRetrievable() { sourceRetrievable_ = true; }
     bool sourceRetrievable() const { return sourceRetrievable_; }
@@ -492,11 +499,6 @@ class ScriptSource
         return data.match(LengthMatcher());
     }
 
-    bool argumentsNotIncluded() const {
-        MOZ_ASSERT(hasSourceData());
-        return argumentsNotIncluded_;
-    }
-
     // Return a string containing the chars starting at |begin| and ending at
     // |begin + len|.
     const char16_t* chars(JSContext* cx, UncompressedSourceCache::AutoHoldEntry& asp,
@@ -504,6 +506,12 @@ class ScriptSource
 
     JSFlatString* substring(JSContext* cx, size_t start, size_t stop);
     JSFlatString* substringDontDeflate(JSContext* cx, size_t start, size_t stop);
+
+    bool isFunctionBody() {
+        return parameterListEnd_ != 0;
+    }
+    JSFlatString* functionBodyString(JSContext* cx);
+
     void addSizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf,
                                 JS::ScriptSourceInfo* info) const;
 
@@ -567,6 +575,10 @@ class ScriptSource
         introductionOffset_ = offset;
         hasIntroductionOffset_ = true;
     }
+
+    uint32_t parameterListEnd() const {
+        return parameterListEnd_;
+    }
 };
 
 class ScriptSourceHolder
@@ -1002,6 +1014,8 @@ class JSScript : public js::gc::TenuredCell
 
     bool isAsync_:1;
 
+    bool hasRest_:1;
+
     // Add padding so JSScript is gc::Cell aligned. Make padding protected
     // instead of private to suppress -Wunused-private-field compiler warnings.
   protected:
@@ -1298,6 +1312,13 @@ class JSScript : public js::gc::TenuredCell
         isAsync_ = kind == js::AsyncFunction;
     }
 
+    bool hasRest() const {
+        return hasRest_;
+    }
+    void setHasRest() {
+        hasRest_ = true;
+    }
+
     void setNeedsHomeObject() {
         needsHomeObject_ = true;
     }
@@ -1930,6 +1951,7 @@ class LazyScript : public gc::TenuredCell
         uint32_t treatAsRunOnce : 1;
         uint32_t isDerivedClassConstructor : 1;
         uint32_t needsHomeObject : 1;
+        uint32_t hasRest : 1;
     };
 
     union {
@@ -2058,6 +2080,13 @@ class LazyScript : public gc::TenuredCell
         p_.isAsync = kind == AsyncFunction;
     }
 
+    bool hasRest() const {
+        return p_.hasRest;
+    }
+    void setHasRest() {
+        p_.hasRest = true;
+    }
+
     bool strict() const {
         return p_.strict;
     }