Include source in kernel.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/become.h"
@@ skipping 3459 matching lines @@
 
 
 TokenPosition Class::ComputeEndTokenPos() const {
   // Return the begin token for synthetic classes.
   if (is_synthesized_class() || IsMixinApplication() || IsTopLevel()) {
     return token_pos();
   }
   Zone* zone = Thread::Current()->zone();
   const Script& scr = Script::Handle(zone, script());
   ASSERT(!scr.IsNull());
+
+  if (scr.kind() == RawScript::kKernelTag) {
+    return TokenPosition::kMinSource;
+  }
+
   const TokenStream& tkns = TokenStream::Handle(zone, scr.tokens());
   if (tkns.IsNull()) {
     ASSERT(Dart::snapshot_kind() == Snapshot::kAppAOT);
     return TokenPosition::kNoSource;
   }
   TokenStream::Iterator tkit(zone, tkns, token_pos(),
                              TokenStream::Iterator::kNoNewlines);
   intptr_t level = 0;
   while (tkit.CurrentTokenKind() != Token::kEOS) {
     if (tkit.CurrentTokenKind() == Token::kLBRACE) {
@@ skipping 5290 matching lines @@
 RawString* Script::Source() const {
   String& source = String::Handle(raw_ptr()->source_);
   if (source.IsNull()) {
     return GenerateSource();
   }
   return raw_ptr()->source_;
 }
 
 
 RawString* Script::GenerateSource() const {
+  if (kind() == RawScript::kKernelTag) {
+    // In kernel it's embedded.
+    return raw_ptr()->source_;
+  }
+
   const TokenStream& token_stream = TokenStream::Handle(tokens());
   if (token_stream.IsNull()) {
     ASSERT(Dart::snapshot_kind() == Snapshot::kAppAOT);
     return String::null();
   }
   return token_stream.GenerateSource();
 }
 
 
 void Script::set_compile_time_constants(const Array& value) const {
   StorePointer(&raw_ptr()->compile_time_constants_, value.raw());
 }
 
 
 RawGrowableObjectArray* Script::GenerateLineNumberArray() const {
   Zone* zone = Thread::Current()->zone();
   const GrowableObjectArray& info =
       GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
   const String& source = String::Handle(zone, Source());
   const String& key = Symbols::Empty();
   const Object& line_separator = Object::Handle(zone);
+  Smi& value = Smi::Handle(zone);
+
+  if (kind() == RawScript::kKernelTag) {
+    const Array& line_starts_array = Array::Handle(line_starts());
+    if (line_starts_array.IsNull()) {
+      // Scripts in the AOT snapshot do not have a line starts array.
+      // A well-formed line number array has a leading null.
+      info.Add(line_separator);  // New line.
+      return info.raw();
+    }
+    intptr_t line_count = line_starts_array.Length();
+    ASSERT(line_count > 0);
+
+    for (int i = 0; i < line_count; i++) {
+      info.Add(line_separator);  // New line.
+      value = Smi::New(i + 1);
+      info.Add(value);  // Line number.
+      value ^= line_starts_array.At(i);
+      info.Add(value);  // Token position.
+      value = Smi::New(1);
+      info.Add(value);  // Column.
+    }
+    return info.raw();
+  }
+
   const TokenStream& tkns = TokenStream::Handle(zone, tokens());
-  Smi& value = Smi::Handle(zone);
   String& tokenValue = String::Handle(zone);
   ASSERT(!tkns.IsNull());
   TokenStream::Iterator tkit(zone, tkns, TokenPosition::kMinSource,
                              TokenStream::Iterator::kAllTokens);
   int current_line = -1;
   Scanner s(source, key);
   s.Scan();
   bool skippedNewline = false;
   while (tkit.CurrentTokenKind() != Token::kEOS) {
     if (tkit.CurrentTokenKind() == Token::kNEWLINE) {
@@ skipping 111 matching lines @@
   StoreNonPointer(&raw_ptr()->load_timestamp_, value);
 }
 
 
 void Script::set_tokens(const TokenStream& value) const {
   StorePointer(&raw_ptr()->tokens_, value.raw());
 }
 
 
 void Script::Tokenize(const String& private_key, bool use_shared_tokens) const {
+  if (kind() == RawScript::kKernelTag) {
+    return;
+  }
+
   Thread* thread = Thread::Current();
   Zone* zone = thread->zone();
   const TokenStream& tkns = TokenStream::Handle(zone, tokens());
   if (!tkns.IsNull()) {
     // Already tokenized.
     return;
   }
   // Get the source, scan and allocate the token stream.
   VMTagScope tagScope(thread, VMTag::kCompileScannerTagId);
   CSTAT_TIMER_SCOPE(thread, scanner_timer);
@@ skipping 46 matching lines @@
 
       smi ^= line_starts_array.At(midpoint);
       if (smi.Value() > offset) {
         max = midpoint - 1;
       } else {
         min = midpoint;
       }
     }
     *line = min + 1;
     smi ^= line_starts_array.At(min);
-    *column = offset - smi.Value() + 1;
+    if (column != NULL) {
+      *column = offset - smi.Value() + 1;
+    }
     if (token_len != NULL) {
       *token_len = 1;
     }
     return;
   }
 
   const TokenStream& tkns = TokenStream::Handle(zone, tokens());
   if (tkns.IsNull()) {
     ASSERT((Dart::snapshot_kind() == Snapshot::kAppAOT));
     *line = -1;
@@ skipping 38 matching lines @@
     }
   }
 }
 
 
 void Script::TokenRangeAtLine(intptr_t line_number,
                               TokenPosition* first_token_index,
                               TokenPosition* last_token_index) const {
   ASSERT(first_token_index != NULL && last_token_index != NULL);
   ASSERT(line_number > 0);
+
+  if (kind() == RawScript::kKernelTag) {
+    const Array& line_starts_array = Array::Handle(line_starts());
+    if (line_starts_array.IsNull()) {
+      // Scripts in the AOT snapshot do not have a line starts array.
+      *first_token_index = TokenPosition::kNoSource;
+      *last_token_index = TokenPosition::kNoSource;
+      return;
+    }
+    ASSERT(line_starts_array.Length() >= line_number);
+    Smi& value = Smi::Handle();
+    value ^= line_starts_array.At(line_number - 1);
+    *first_token_index = TokenPosition(value.Value());
+    if (line_starts_array.Length() > line_number) {
+      value ^= line_starts_array.At(line_number);
+      *last_token_index = TokenPosition(value.Value() - 1);
+    } else {
+      // Length of source is last possible token in this script.
+      *last_token_index = TokenPosition(String::Handle(Source()).Length());
+    }
+    return;
+  }
+
   Zone* zone = Thread::Current()->zone();
   *first_token_index = TokenPosition::kNoSource;
   *last_token_index = TokenPosition::kNoSource;
   const TokenStream& tkns = TokenStream::Handle(zone, tokens());
   line_number -= line_offset();
   if (line_number < 1) line_number = 1;
   TokenStream::Iterator tkit(zone, tkns, TokenPosition::kMinSource,
                              TokenStream::Iterator::kAllTokens);
   // Scan through the token stream to the required line.
   intptr_t cur_line = 1;
@@ skipping 13833 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart