Index: tools/gn/item_node.h |
diff --git a/tools/gn/item_node.h b/tools/gn/item_node.h |
deleted file mode 100644 |
index dbee141b7373593091a93aa6ac0a8250e0634021..0000000000000000000000000000000000000000 |
--- a/tools/gn/item_node.h |
+++ /dev/null |
@@ -1,159 +0,0 @@ |
-// Copyright (c) 2013 The Chromium 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 TOOLS_GN_ITEM_NODE_H_ |
-#define TOOLS_GN_ITEM_NODE_H_ |
- |
-#include <map> |
-#include <vector> |
- |
-#include "base/basictypes.h" |
-#include "base/callback.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "tools/gn/location.h" |
- |
-class BuildSettings; |
-class Err; |
-class Item; |
- |
-// Represents a node in the depdency tree. It references an Item which is |
-// the actual thing. |
-// |
-// The items and nodes are split apart so that the ItemTree can manipulate |
-// the dependencies one one thread while the Item itself is been modified on |
-// another. |
-class ItemNode { |
- public: |
- // The state of this node. As more of the load progresses, we'll move |
- // downward in this list toward the resolved state. |
- enum State { |
- // Another item has referenced this one by name, but we have not yet |
- // encountered its definition. |
- REFERENCED = 0, |
- |
- // We've seen the definition of this item but have not requested that its |
- // dependencies be loaded. In non-greedy generation mode (see item_tree.h) |
- // some nodes will stay in this state forever as long as they're not needed |
- // for anything that is required. |
- DEFINED, |
- |
- // The item has been defined and we've requested that all of the |
- // dependencies be loaded. Not all of the dependencies have been resolved, |
- // however, and we're still waiting on some build files to be run (or |
- // perhaps there are undefined dependencies). |
- PENDING_DEPS, |
- |
- // All of this item's transitive dependencies have been found and |
- // resolved. |
- RESOLVED, |
- }; |
- |
- // Stores a set of ItemNodes and the associated range that the dependency |
- // was added from. |
- typedef std::map<ItemNode*, LocationRange> ItemNodeMap; |
- |
- // Takes ownership of the pointer. |
- // Initial state will be REFERENCED. |
- ItemNode(Item* i); |
- ~ItemNode(); |
- |
- State state() const { return state_; } |
- |
- // This closure will be executed when the item is resolved and it has the |
- // should_generate flag set. |
- void set_resolved_closure(const base::Closure& closure) { |
- resolved_closure_ = closure; |
- } |
- |
- const Item* item() const { return item_.get(); } |
- Item* item() { return item_.get(); } |
- |
- // True if this item should be generated. In greedy mode, this will alwyas |
- // be set. Otherwise, this bit will be "pushed" through the tree to |
- // generate the minimum set of targets required for some special base target. |
- // Initialized to false. |
- // |
- // If this item has been defined, setting this flag will schedule the load |
- // of dependent nodes and also set their should_generate bits. |
- bool should_generate() const { return should_generate_; } |
- bool SetShouldGenerate(const BuildSettings* build_settings, Err* err); |
- |
- // Where this was created from, which might be when it was generated or |
- // when it was first referenced from another target. |
- const LocationRange& originally_referenced_from_here() const { |
- return originally_referenced_from_here_; |
- } |
- void set_originally_referenced_from_here(const LocationRange& r) { |
- originally_referenced_from_here_ = r; |
- } |
- |
- // Where this was generated from. This will be empty for items that have |
- // been referenced but not generated. Note that this has to be one the |
- // ItemNode because it can be changing from multiple threads and we need |
- // to be sure that access is serialized. |
- const LocationRange& generated_from_here() const { |
- return generated_from_here_; |
- } |
- void set_generated_from_here(const LocationRange& r) { |
- generated_from_here_ = r; |
- } |
- |
- const ItemNodeMap& direct_dependencies() const { |
- return direct_dependencies_; |
- } |
- const ItemNodeMap& unresolved_dependencies() const { |
- return unresolved_dependencies_; |
- } |
- |
- bool AddDependency(const BuildSettings* build_settings, |
- const LocationRange& specified_from_here, |
- ItemNode* node, |
- Err* err); |
- |
- // Removes the given dependency from the unresolved list. Does not do |
- // anything else to update waiters. |
- void MarkDirectDependencyResolved(ItemNode* node); |
- |
- // Destructively retrieve the set of waiting nodes. |
- void SwapOutWaitingDependencySet(ItemNodeMap* out_map); |
- |
- // Marks this item state as defined (see above). If the should generate |
- // flag is set, this will schedule a load of the dependencies and |
- // automatically transition to the PENDING_DEPS state. |
- bool SetDefined(const BuildSettings* build_settings, Err* err); |
- |
- // Marks this item state as resolved (see above). |
- void SetResolved(); |
- |
- private: |
- // Schedules loading the dependencies of this node. The current state must |
- // be DEFINED, and this call will transition the state to PENDING_DEPS. |
- // |
- // Requesting deps can fail. On failure returns false and sets the err. |
- bool ScheduleDepsLoad(const BuildSettings* build_settings, Err* err); |
- |
- State state_; |
- scoped_ptr<Item> item_; |
- bool should_generate_; // See getter above. |
- |
- LocationRange originally_referenced_from_here_; |
- LocationRange generated_from_here_; |
- |
- // What to run when this item is resolved. |
- base::Closure resolved_closure_; |
- |
- // Everything this item directly depends on. |
- ItemNodeMap direct_dependencies_; |
- |
- // Unresolved things this item directly depends on. |
- ItemNodeMap unresolved_dependencies_; |
- |
- // These items are waiting on us to be resolved before they can be |
- // resolved. This is the backpointer for unresolved_dependencies_. |
- ItemNodeMap waiting_on_resolution_; |
- |
- DISALLOW_COPY_AND_ASSIGN(ItemNode); |
-}; |
- |
-#endif // TOOLS_GN_ITEM_NODE_H_ |