[inspector] Split off interface-types.h

src/debug/interface-types.h

+// Copyright 2016 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_DEBUG_INTERFACE_TYPES_H_
+#define V8_DEBUG_INTERFACE_TYPES_H_
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace v8 {
+namespace debug {

[Yang, 2016/12/05 12:44:49]

Having Location in the namespace v8::debug, and DebugInterface in the namespace
v8 is somewhat weird.

Can we have a follow-up CL that moves everything in DebugInterface into
v8::debug as well?

[Clemens Hammacher, 2016/12/05 13:30:04]

It's here: http://crrev.com/2549133002
I don't particularly like it, since you now often have to write
debug::DebugInterface or even v8::debug::DebugInterface.

Thanks for supporting an incremental process here!

+
+/**
+ * Defines location inside script.
+ * Lines and columns are 0-based.
+ */
+class Location {
+ public:
+  Location(int line_number, int column_number);
+  /**
+   * Create empty location.
+   */
+  Location();
+
+  int GetLineNumber() const;
+  int GetColumnNumber() const;
+  bool IsEmpty() const;
+
+ private:
+  int line_number_;
+  int column_number_;
+};
+
+/**
+ * The result of disassembling a wasm function.
+ * Consists of the disassembly string and an offset table mapping wasm byte
+ * offsets to line and column in the disassembly.
+ * The offset table entries are ordered by the byte_offset.
+ * All numbers are 0-based.
+ */
+struct WasmDisassemblyOffsetTableEntry {
+  WasmDisassemblyOffsetTableEntry(uint32_t byte_offset, int line, int column)
+      : byte_offset(byte_offset), line(line), column(column) {}
+
+  uint32_t byte_offset;
+  int line;
+  int column;
+};
+struct WasmDisassembly {
+  using OffsetTable = std::vector<WasmDisassemblyOffsetTableEntry>;
+  WasmDisassembly() {}
+  WasmDisassembly(std::string disassembly, OffsetTable offset_table)
+      : disassembly(std::move(disassembly)),
+        offset_table(std::move(offset_table)) {}
+
+  std::string disassembly;
+  OffsetTable offset_table;
+};
+
+}  // namespace debug
+}  // namespace v8
+
+#endif  // V8_DEBUG_INTERFACE_TYPES_H_