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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/codegen/unoptimized-compilation-info.h"
#include "src/ast/ast.h"
#include "src/ast/scopes.h"
#include "src/codegen/source-position.h"
#include "src/debug/debug.h"
#include "src/execution/isolate.h"
#include "src/objects/objects-inl.h"
#include "src/parsing/parse-info.h"
namespace v8 {
namespace internal {
UnoptimizedCompilationInfo::UnoptimizedCompilationInfo(Zone* zone,
ParseInfo* parse_info,
FunctionLiteral* literal)
: flags_(0), zone_(zone), feedback_vector_spec_(zone) {
// NOTE: The parse_info passed here represents the global information gathered
// during parsing, but does not represent specific details of the actual
// function literal being compiled for this OptimizedCompilationInfo. As such,
// parse_info->literal() might be different from literal, and only global
// details of the script being parsed are relevant to this
// OptimizedCompilationInfo.
DCHECK_NOT_NULL(literal);
literal_ = literal;
source_range_map_ = parse_info->source_range_map();
if (parse_info->is_eval()) MarkAsEval();
if (parse_info->collect_type_profile()) MarkAsCollectTypeProfile();
if (parse_info->might_always_opt()) MarkAsMightAlwaysOpt();
if (parse_info->collect_source_positions()) {
MarkAsForceCollectSourcePositions();
}
}
DeclarationScope* UnoptimizedCompilationInfo::scope() const {
DCHECK_NOT_NULL(literal_);
return literal_->scope();
}
int UnoptimizedCompilationInfo::num_parameters() const {
return scope()->num_parameters();
}
int UnoptimizedCompilationInfo::num_parameters_including_this() const {
return scope()->num_parameters() + 1;
}
SourcePositionTableBuilder::RecordingMode
UnoptimizedCompilationInfo::SourcePositionRecordingMode() const {
if (collect_source_positions()) {
return SourcePositionTableBuilder::RECORD_SOURCE_POSITIONS;
}
// Always collect source positions for functions that cannot be lazily
// compiled, e.g. class member initializer functions.
return !literal_->AllowsLazyCompilation()
? SourcePositionTableBuilder::RECORD_SOURCE_POSITIONS
: SourcePositionTableBuilder::LAZY_SOURCE_POSITIONS;
}
} // namespace internal
} // namespace v8