[kernel] Delete most of the AST

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 9122 matching lines @@
     return Symbols::Token(kind).raw();
   } else {
     ASSERT(obj.IsLiteralToken());  // Must be a literal token.
     const LiteralToken& literal_token = LiteralToken::Cast(obj);
     return literal_token.literal();
   }
 }
 
 
 bool Script::HasSource() const {
+#if !defined(DART_PRECOMPILED_RUNTIME)
+  return kind() == RawScript::kKernelTag ||
+         raw_ptr()->source_ != String::null();
+#else   // !defined(DART_PRECOMPILED_RUNTIME)
   return raw_ptr()->source_ != String::null();
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)
 }
 
 
 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 !defined(DART_PRECOMPILED_RUNTIME)
   if (kind() == RawScript::kKernelTag) {
-    // In kernel it's embedded.
+    String& source = String::Handle(raw_ptr()->source_);
+    if (source.IsNull()) {
+      // This is created lazily. Now we need it.
+      set_source(kernel::GetSourceFor(*this));
+    }
     return raw_ptr()->source_;
   }
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)
 
   const TokenStream& token_stream = TokenStream::Handle(tokens());
   if (token_stream.IsNull()) {
     ASSERT(Dart::vm_snapshot_kind() == Snapshot::kFullAOT);
     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());
 }
 
 
 void Script::set_kernel_data(const uint8_t* kernel_data) const {
   StoreNonPointer(&raw_ptr()->kernel_data_, kernel_data);
 }
 
 
 void Script::set_kernel_data_size(const intptr_t kernel_data_size) const {
   StoreNonPointer(&raw_ptr()->kernel_data_size_, kernel_data_size);
 }
 
 
+void Script::set_kernel_script_index(const intptr_t kernel_script_index) const {
+  StoreNonPointer(&raw_ptr()->kernel_script_index_, kernel_script_index);
+}
+
+
 void Script::set_kernel_string_offsets(const TypedData& offsets) const {
   StorePointer(&raw_ptr()->kernel_string_offsets_, offsets.raw());
 }
 
 
 void Script::set_kernel_string_data(const TypedData& data) const {
   StorePointer(&raw_ptr()->kernel_string_data_, data.raw());
 }
 
 
@@ skipping 174 matching lines @@
 
 
 void Script::set_debug_positions(const Array& value) const {
   StorePointer(&raw_ptr()->debug_positions_, value.raw());
 }
 
 void Script::set_yield_positions(const Array& value) const {
   StorePointer(&raw_ptr()->yield_positions_, value.raw());
 }
 
+RawArray* Script::yield_positions() const {
+#if !defined(DART_PRECOMPILED_RUNTIME)
+  Array& yields = Array::Handle(raw_ptr()->yield_positions_);
+  if (yields.IsNull() && kind() == RawScript::kKernelTag) {
+    // This is created lazily. Now we need it.
+    kernel::CollectTokenPositionsFor(*this);
+  }
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)
+  return raw_ptr()->yield_positions_;
+}
+
+
+RawArray* Script::line_starts() const {
+#if !defined(DART_PRECOMPILED_RUNTIME)
+  const Array& line_starts_array = Array::Handle(raw_ptr()->line_starts_);
+  if (line_starts_array.IsNull() && kind() == RawScript::kKernelTag) {
+    // This is created lazily. Now we need it.
+    set_line_starts(kernel::GetLineStartsFor(*this));
+  }
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)
+  return raw_ptr()->line_starts_;
+}
+
+
+RawArray* Script::debug_positions() const {
+#if !defined(DART_PRECOMPILED_RUNTIME)
+  Array& debug_positions_array = Array::Handle(raw_ptr()->debug_positions_);
+  if (debug_positions_array.IsNull() && kind() == RawScript::kKernelTag) {
+    // This is created lazily. Now we need it.
+    kernel::CollectTokenPositionsFor(*this);
+  }
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)
+  return raw_ptr()->debug_positions_;
+}
+
 void Script::set_kind(RawScript::Kind value) const {
   StoreNonPointer(&raw_ptr()->kind_, value);
 }
 
 
 void Script::set_load_timestamp(int64_t value) const {
   StoreNonPointer(&raw_ptr()->load_timestamp_, value);
 }
 
 
@@ skipping 14112 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart