1 files changed, 136 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcConfiguration.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcConfiguration.java
new file mode 100644
index 0000000000..3f2e073dd0
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcConfiguration.java
@@ -0,0 +1,136 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.lib.rules.objc;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.analysis.config.CompilationMode;
+import com.google.devtools.build.xcode.common.Platform;
+
+import java.util.List;
+
+/**
+ * A compiler configuration containing flags required for Objective-C compilation.
+ */
+public class ObjcConfiguration extends BuildConfiguration.Fragment {
+  @VisibleForTesting
+  static final ImmutableList<String> DBG_COPTS = ImmutableList.of("-O0", "-DDEBUG=1",
+      "-fstack-protector", "-fstack-protector-all", "-D_GLIBCXX_DEBUG_PEDANTIC", "-D_GLIBCXX_DEBUG",
+      "-D_GLIBCPP_CONCEPT_CHECKS");
+
+  @VisibleForTesting
+  static final ImmutableList<String> FASTBUILD_COPTS = ImmutableList.of("-O0", "-DDEBUG=1");
+
+  @VisibleForTesting
+  static final ImmutableList<String> OPT_COPTS =
+      ImmutableList.of("-Os", "-DNDEBUG=1", "-Wno-unused-variable", "-Winit-self", "-Wno-extra");
+
+  private final String iosSdkVersion;
+  private final String iosMinimumOs;
+  private final String iosSimulatorVersion;
+  private final String iosCpu;
+  private final String xcodeOptions;
+  private final boolean generateDebugSymbols;
+  private final List<String> copts;
+  private final CompilationMode compilationMode;
+
+  ObjcConfiguration(ObjcCommandLineOptions objcOptions, BuildConfiguration.Options options) {
+    this.iosSdkVersion = Preconditions.checkNotNull(objcOptions.iosSdkVersion, "iosSdkVersion");
+    this.iosMinimumOs = Preconditions.checkNotNull(objcOptions.iosMinimumOs, "iosMinimumOs");
+    this.iosSimulatorVersion =
+        Preconditions.checkNotNull(objcOptions.iosSimulatorVersion, "iosSimulatorVersion");
+    this.iosCpu = Preconditions.checkNotNull(objcOptions.iosCpu, "iosCpu");
+    this.xcodeOptions = Preconditions.checkNotNull(objcOptions.xcodeOptions, "xcodeOptions");
+    this.generateDebugSymbols = objcOptions.generateDebugSymbols;
+    this.copts = ImmutableList.copyOf(objcOptions.copts);
+    this.compilationMode = Preconditions.checkNotNull(options.compilationMode, "compilationMode");
+  }
+
+  public String getIosSdkVersion() {
+    return iosSdkVersion;
+  }
+
+  /**
+   * Returns the minimum iOS version supported by binaries and libraries. Any dependencies on newer
+   * iOS version features or libraries will become weak dependencies which are only loaded if the
+   * runtime OS supports them.
+   */
+  public String getMinimumOs() {
+    return iosMinimumOs;
+  }
+
+  public String getIosSimulatorVersion() {
+    return iosSimulatorVersion;
+  }
+
+  public String getIosCpu() {
+    return iosCpu;
+  }
+
+  public Platform getPlatform() {
+    return Platform.forArch(getIosCpu());
+  }
+
+  public String getXcodeOptions() {
+    return xcodeOptions;
+  }
+
+  public boolean generateDebugSymbols() {
+    return generateDebugSymbols;
+  }
+
+  /**
+   * Returns the current compilation mode.
+   */
+  public CompilationMode getCompilationMode() {
+    return compilationMode;
+  }
+
+  /**
+   * Returns the default set of clang options for the current compilation mode.
+   */
+  public List<String> getCoptsForCompilationMode() {
+    switch (compilationMode) {
+      case DBG:
+        return DBG_COPTS;
+      case FASTBUILD:
+        return FASTBUILD_COPTS;
+      case OPT:
+        return OPT_COPTS;
+      default:
+        throw new AssertionError();
+    }
+  }
+
+  /**
+   * Returns options passed to (Apple) clang when compiling Objective C. These options should be
+   * applied after any default options but before options specified in the attributes of the rule.
+   */
+  public List<String> getCopts() {
+    return copts;
+  }
+
+  @Override
+  public String getName() {
+    return "Objective-C";
+  }
+
+  @Override
+  public String cacheKey() {
+    return iosSdkVersion;
+  }
+}