Line data    Source code

       1             : // Copyright 2018 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #include "src/unoptimized-compilation-info.h"
       6             : 
       7             : #include "src/ast/ast.h"
       8             : #include "src/ast/scopes.h"
       9             : #include "src/debug/debug.h"
      10             : #include "src/isolate.h"
      11             : #include "src/objects-inl.h"
      12             : #include "src/parsing/parse-info.h"
      13             : #include "src/source-position.h"
      14             : 
      15             : namespace v8 {
      16             : namespace internal {
      17             : 
      18     2100420 : UnoptimizedCompilationInfo::UnoptimizedCompilationInfo(Zone* zone,
      19             :                                                        ParseInfo* parse_info,
      20             :                                                        FunctionLiteral* literal)
      21     2100420 :     : flags_(0), zone_(zone), feedback_vector_spec_(zone) {
      22             :   // NOTE: The parse_info passed here represents the global information gathered
      23             :   // during parsing, but does not represent specific details of the actual
      24             :   // function literal being compiled for this OptimizedCompilationInfo. As such,
      25             :   // parse_info->literal() might be different from literal, and only global
      26             :   // details of the script being parsed are relevant to this
      27             :   // OptimizedCompilationInfo.
      28             :   DCHECK_NOT_NULL(literal);
      29     2100434 :   literal_ = literal;
      30     2100434 :   source_range_map_ = parse_info->source_range_map();
      31             : 
      32     2100434 :   if (parse_info->is_eval()) MarkAsEval();
      33     2100434 :   if (parse_info->is_native()) MarkAsNative();
      34     2100434 :   if (parse_info->collect_type_profile()) MarkAsCollectTypeProfile();
      35     2100434 :   if (parse_info->might_always_opt()) MarkAsMightAlwaysOpt();
      36     2100434 :   if (parse_info->collect_source_positions()) {
      37             :     MarkAsForceCollectSourcePositions();
      38             :   }
      39     2100434 : }
      40             : 
      41     8365314 : DeclarationScope* UnoptimizedCompilationInfo::scope() const {
      42             :   DCHECK_NOT_NULL(literal_);
      43    10462001 :   return literal_->scope();
      44             : }
      45             : 
      46           0 : int UnoptimizedCompilationInfo::num_parameters() const {
      47           0 :   return scope()->num_parameters();
      48             : }
      49             : 
      50     2096687 : int UnoptimizedCompilationInfo::num_parameters_including_this() const {
      51     2096687 :   return scope()->num_parameters() + 1;
      52             : }
      53             : 
      54             : SourcePositionTableBuilder::RecordingMode
      55     2096680 : UnoptimizedCompilationInfo::SourcePositionRecordingMode() const {
      56     2096680 :   if (is_native()) {
      57             :     DCHECK(!collect_source_positions());
      58             :     return SourcePositionTableBuilder::OMIT_SOURCE_POSITIONS;
      59             :   }
      60             : 
      61     2096680 :   if (collect_source_positions()) {
      62             :     return SourcePositionTableBuilder::RECORD_SOURCE_POSITIONS;
      63             :   }
      64             : 
      65             :   // Always collect source positions for functions that cannot be lazily
      66             :   // compiled, e.g. class member initializer functions.
      67          20 :   return !literal_->AllowsLazyCompilation()
      68             :              ? SourcePositionTableBuilder::RECORD_SOURCE_POSITIONS
      69          20 :              : SourcePositionTableBuilder::OMIT_SOURCE_POSITIONS;
      70             : }
      71             : 
      72             : }  // namespace internal
      73      120216 : }  // namespace v8