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Unified Diff: sdk/lib/_internal/compiler/implementation/universe/side_effects.dart

Issue 694353007: Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: sdk/lib/_internal/compiler/implementation/universe/side_effects.dart
diff --git a/sdk/lib/_internal/compiler/implementation/universe/side_effects.dart b/sdk/lib/_internal/compiler/implementation/universe/side_effects.dart
deleted file mode 100644
index e4a1fa4ef4e95b8b51a3a88d430b6a5f149dd9b9..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/compiler/implementation/universe/side_effects.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of universe;
-
-class SideEffects {
- // Changes flags.
- static const int FLAG_CHANGES_INDEX = 0;
- static const int FLAG_CHANGES_INSTANCE_PROPERTY = FLAG_CHANGES_INDEX + 1;
- static const int FLAG_CHANGES_STATIC_PROPERTY
- = FLAG_CHANGES_INSTANCE_PROPERTY + 1;
- static const int FLAG_CHANGES_COUNT = FLAG_CHANGES_STATIC_PROPERTY + 1;
-
- // Depends flags (one for each changes flag).
- static const int FLAG_DEPENDS_ON_INDEX_STORE = FLAG_CHANGES_COUNT;
- static const int FLAG_DEPENDS_ON_INSTANCE_PROPERTY_STORE =
- FLAG_DEPENDS_ON_INDEX_STORE + 1;
- static const int FLAG_DEPENDS_ON_STATIC_PROPERTY_STORE =
- FLAG_DEPENDS_ON_INSTANCE_PROPERTY_STORE + 1;
- static const int FLAG_DEPENDS_ON_COUNT =
- FLAG_DEPENDS_ON_STATIC_PROPERTY_STORE + 1;
-
- int flags = 0;
-
- SideEffects() {
- setAllSideEffects();
- setDependsOnSomething();
- }
-
- SideEffects.empty();
-
- bool operator==(other) => flags == other.flags;
-
- int get hashCode => throw new UnsupportedError('SideEffects.hashCode');
-
- bool getFlag(int position) => (flags & (1 << position)) != 0;
- void setFlag(int position) { flags |= (1 << position); }
-
- int getChangesFlags() => flags & ((1 << FLAG_CHANGES_COUNT) - 1);
- int getDependsOnFlags() {
- return (flags & ((1 << FLAG_DEPENDS_ON_COUNT) - 1)) >> FLAG_CHANGES_COUNT;
- }
-
- bool hasSideEffects() => getChangesFlags() != 0;
- bool dependsOnSomething() => getDependsOnFlags() != 0;
-
- void setAllSideEffects() { flags |= ((1 << FLAG_CHANGES_COUNT) - 1); }
-
- void clearAllSideEffects() { flags &= ~((1 << FLAG_CHANGES_COUNT) - 1); }
-
- void setDependsOnSomething() {
- int count = FLAG_DEPENDS_ON_COUNT - FLAG_CHANGES_COUNT;
- flags |= (((1 << count) - 1) << FLAG_CHANGES_COUNT);
- }
- void clearAllDependencies() {
- int count = FLAG_DEPENDS_ON_COUNT - FLAG_CHANGES_COUNT;
- flags &= ~(((1 << count) - 1) << FLAG_CHANGES_COUNT);
- }
-
- bool dependsOnStaticPropertyStore() {
- return getFlag(FLAG_DEPENDS_ON_STATIC_PROPERTY_STORE);
- }
- void setDependsOnStaticPropertyStore() {
- setFlag(FLAG_DEPENDS_ON_STATIC_PROPERTY_STORE);
- }
- void setChangesStaticProperty() { setFlag(FLAG_CHANGES_STATIC_PROPERTY); }
- bool changesStaticProperty() => getFlag(FLAG_CHANGES_STATIC_PROPERTY);
-
- bool dependsOnIndexStore() => getFlag(FLAG_DEPENDS_ON_INDEX_STORE);
- void setDependsOnIndexStore() { setFlag(FLAG_DEPENDS_ON_INDEX_STORE); }
- void setChangesIndex() { setFlag(FLAG_CHANGES_INDEX); }
- bool changesIndex() => getFlag(FLAG_CHANGES_INDEX);
-
- bool dependsOnInstancePropertyStore() {
- return getFlag(FLAG_DEPENDS_ON_INSTANCE_PROPERTY_STORE);
- }
- void setDependsOnInstancePropertyStore() {
- setFlag(FLAG_DEPENDS_ON_INSTANCE_PROPERTY_STORE);
- }
- void setChangesInstanceProperty() { setFlag(FLAG_CHANGES_INSTANCE_PROPERTY); }
- bool changesInstanceProperty() => getFlag(FLAG_CHANGES_INSTANCE_PROPERTY);
-
- static int computeDependsOnFlags(int flags) => flags << FLAG_CHANGES_COUNT;
-
- bool dependsOn(int dependsFlags) => (flags & dependsFlags) != 0;
-
- void add(SideEffects other) {
- flags |= other.flags;
- }
-
- String toString() {
- StringBuffer buffer = new StringBuffer();
- buffer.write('Depends on');
- if (dependsOnIndexStore()) buffer.write(' []');
- if (dependsOnInstancePropertyStore()) buffer.write(' field store');
- if (dependsOnStaticPropertyStore()) buffer.write(' static store');
- if (!dependsOnSomething()) buffer.write(' nothing');
- buffer.write(', Changes');
- if (changesIndex()) buffer.write(' []');
- if (changesInstanceProperty()) buffer.write(' field');
- if (changesStaticProperty()) buffer.write(' static');
- if (!hasSideEffects()) buffer.write(' nothing');
- buffer.write('.');
- return buffer.toString();
- }
-}

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