[coverage] Block coverage with support for IfStatements

src/interpreter/bytecode-generator.h

 // Copyright 2015 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.
 
 #ifndef V8_INTERPRETER_BYTECODE_GENERATOR_H_
 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_
 
 #include "src/ast/ast.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/bytecode-label.h"
@@ skipping 33 matching lines @@
   class ControlScope;
   class ControlScopeForBreakable;
   class ControlScopeForIteration;
   class ControlScopeForTopLevel;
   class ControlScopeForTryCatch;
   class ControlScopeForTryFinally;
   class CurrentScope;
   class ExpressionResultScope;
   class EffectResultScope;
   class GlobalDeclarationsBuilder;
+  class BlockCoverageBuilder;
   class RegisterAllocationScope;
   class TestResultScope;
   class ValueResultScope;
 
   using ToBooleanMode = BytecodeArrayBuilder::ToBooleanMode;
 
   enum class TestFallthrough { kThen, kElse, kNone };
   enum class TypeHint { kAny, kString, kBoolean };
 
   void GenerateBytecodeBody();
@@ skipping 107 matching lines @@
                             LoopBuilder* loop_builder);
   void VisitIterationBody(IterationStatement* stmt, LoopBuilder* loop_builder);
 
   // Visit a statement and switch scopes, the context is in the accumulator.
   void VisitInScope(Statement* stmt, Scope* scope);
 
   void BuildPushUndefinedIntoRegisterList(RegisterList* reg_list);
 
   void BuildLoadPropertyKey(LiteralProperty* property, Register out_reg);
 
+  int AllocateBlockCoverageSlotIfEnabled(SourceRange range);
+  void BuildIncrementBlockCoverageCounterIfEnabled(int coverage_array_slot);
+
   // Visitors for obtaining expression result in the accumulator, in a
   // register, or just getting the effect. Some visitors return a TypeHint which
   // specifies the type of the result of the visited expression.
   TypeHint VisitForAccumulatorValue(Expression* expr);
   void VisitForAccumulatorValueOrTheHole(Expression* expr);
   MUST_USE_RESULT Register VisitForRegisterValue(Expression* expr);
   void VisitForRegisterValue(Expression* expr, Register destination);
   void VisitAndPushIntoRegisterList(Expression* expr, RegisterList* reg_list);
   void VisitForEffect(Expression* expr);
   void VisitForTest(Expression* expr, BytecodeLabels* then_labels,
@@ skipping 46 matching lines @@
   int feedback_index(FeedbackSlot slot) const;
 
   Zone* zone_;
   BytecodeArrayBuilder* builder_;
   CompilationInfo* info_;
   const AstStringConstants* ast_string_constants_;
   DeclarationScope* closure_scope_;
   Scope* current_scope_;
 
   GlobalDeclarationsBuilder* globals_builder_;
+  BlockCoverageBuilder* block_coverage_builder_;
   ZoneVector<GlobalDeclarationsBuilder*> global_declarations_;
   ZoneVector<std::pair<FunctionLiteral*, size_t>> function_literals_;
   ZoneVector<std::pair<NativeFunctionLiteral*, size_t>>
       native_function_literals_;
   ZoneVector<std::pair<ObjectLiteral*, size_t>> object_literals_;
   ZoneVector<std::pair<ArrayLiteral*, size_t>> array_literals_;
 
   ControlScope* execution_control_;
   ContextScope* execution_context_;
   ExpressionResultScope* execution_result_;
 
   BytecodeJumpTable* generator_jump_table_;
   Register generator_state_;
   int loop_depth_;
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_GENERATOR_H_