Clean-up Synthesized Cf code
Change-Id: Ia14678369fa8d7bf6468302403f7b0ac3e019e50
diff --git a/src/main/java/com/android/tools/r8/graph/DexEncodedMethod.java b/src/main/java/com/android/tools/r8/graph/DexEncodedMethod.java
index 16efa70..9944273 100644
--- a/src/main/java/com/android/tools/r8/graph/DexEncodedMethod.java
+++ b/src/main/java/com/android/tools/r8/graph/DexEncodedMethod.java
@@ -52,7 +52,7 @@
import com.android.tools.r8.ir.optimize.info.MutableCallSiteOptimizationInfo;
import com.android.tools.r8.ir.optimize.info.UpdatableMethodOptimizationInfo;
import com.android.tools.r8.ir.regalloc.RegisterAllocator;
-import com.android.tools.r8.ir.synthetic.CfEmulateInterfaceSyntheticSourceCodeProvider;
+import com.android.tools.r8.ir.synthetic.EmulateInterfaceSyntheticCfCodeProvider;
import com.android.tools.r8.ir.synthetic.FieldAccessorSourceCode;
import com.android.tools.r8.ir.synthetic.ForwardMethodSourceCode;
import com.android.tools.r8.ir.synthetic.SynthesizedCode;
@@ -881,7 +881,6 @@
DexMethod libraryMethod,
List<Pair<DexType, DexMethod>> extraDispatchCases,
AppView<?> appView) {
- // TODO(134732760): Deal with overrides for correct dispatch to implementations of Interfaces
assert isDefaultMethod() || isStatic();
DexEncodedMethod.Builder builder = DexEncodedMethod.builder(this);
builder.setMethod(newMethod);
@@ -889,26 +888,11 @@
builder.accessFlags.setStatic();
builder.accessFlags.unsetPrivate();
builder.accessFlags.setPublic();
- DexEncodedMethod newEncodedMethod = builder.build();
- newEncodedMethod.setCode(
- new SynthesizedCode(
- new CfEmulateInterfaceSyntheticSourceCodeProvider(
- this.method.holder,
- companionMethod,
- newEncodedMethod,
- libraryMethod,
- this.method,
- extraDispatchCases,
- appView),
- registry -> {
- registry.registerInvokeInterface(libraryMethod);
- for (Pair<DexType, DexMethod> dispatch : extraDispatchCases) {
- registry.registerInvokeStatic(dispatch.getSecond());
- }
- registry.registerInvokeStatic(companionMethod);
- }),
- appView);
- return newEncodedMethod;
+ builder.setCode(
+ new EmulateInterfaceSyntheticCfCodeProvider(
+ this.method.holder, companionMethod, libraryMethod, extraDispatchCases, appView)
+ .generateCfCode());
+ return builder.build();
}
public DexEncodedMethod toStaticForwardingBridge(DexClass holder, DexMethod newMethod) {
diff --git a/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java b/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
index 141d7c0..c87b921 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
@@ -8,6 +8,7 @@
import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.CfCode;
import com.android.tools.r8.graph.ClassAccessFlags;
+import com.android.tools.r8.graph.Code;
import com.android.tools.r8.graph.DexAnnotationSet;
import com.android.tools.r8.graph.DexApplication;
import com.android.tools.r8.graph.DexClass;
@@ -26,10 +27,10 @@
import com.android.tools.r8.graph.MethodAccessFlags;
import com.android.tools.r8.graph.ParameterAnnotationsList;
import com.android.tools.r8.ir.conversion.IRConverter;
-import com.android.tools.r8.ir.synthetic.CfDesugaredLibraryAPIConversionSourceCodeProvider.CfAPIConverterConstructorCodeProvider;
-import com.android.tools.r8.ir.synthetic.CfDesugaredLibraryAPIConversionSourceCodeProvider.CfAPIConverterVivifiedWrapperCodeProvider;
-import com.android.tools.r8.ir.synthetic.CfDesugaredLibraryAPIConversionSourceCodeProvider.CfAPIConverterWrapperCodeProvider;
-import com.android.tools.r8.ir.synthetic.CfDesugaredLibraryAPIConversionSourceCodeProvider.CfAPIConverterWrapperConversionCodeProvider;
+import com.android.tools.r8.ir.synthetic.DesugaredLibraryAPIConversionCfCodeProvider.APIConverterConstructorCfCodeProvider;
+import com.android.tools.r8.ir.synthetic.DesugaredLibraryAPIConversionCfCodeProvider.APIConverterVivifiedWrapperCfCodeProvider;
+import com.android.tools.r8.ir.synthetic.DesugaredLibraryAPIConversionCfCodeProvider.APIConverterWrapperCfCodeProvider;
+import com.android.tools.r8.ir.synthetic.DesugaredLibraryAPIConversionCfCodeProvider.APIConverterWrapperConversionCfCodeProvider;
import com.android.tools.r8.origin.SynthesizedOrigin;
import com.android.tools.r8.utils.Box;
import com.android.tools.r8.utils.DescriptorUtils;
@@ -179,7 +180,7 @@
return synthesizeWrapper(
converter.vivifiedTypeFor(type),
dexClass.sourceFile,
- synthetiseVirtualMethodsForTypeWrapper(dexClass.asLibraryClass(), wrapperField),
+ synthesizeVirtualMethodsForTypeWrapper(dexClass.asLibraryClass(), wrapperField),
wrapperField);
}
@@ -191,7 +192,7 @@
return synthesizeWrapper(
type,
dexClass.sourceFile,
- synthetiseVirtualMethodsForVivifiedTypeWrapper(dexClass.asLibraryClass(), wrapperField),
+ synthesizeVirtualMethodsForVivifiedTypeWrapper(dexClass.asLibraryClass(), wrapperField),
wrapperField);
}
@@ -225,7 +226,7 @@
Collections.emptyList());
}
- private DexEncodedMethod[] synthetiseVirtualMethodsForVivifiedTypeWrapper(
+ private DexEncodedMethod[] synthesizeVirtualMethodsForVivifiedTypeWrapper(
DexLibraryClass dexClass, DexEncodedField wrapperField) {
List<DexEncodedMethod> dexMethods = allImplementedMethods(dexClass);
List<DexEncodedMethod> generatedMethods = new ArrayList<>();
@@ -244,24 +245,18 @@
wrapperField.field.holder,
dexEncodedMethod.method.proto,
dexEncodedMethod.method.name);
- DexEncodedMethod newDexEncodedMethod =
- newSynthesizedMethod(methodToInstall, dexEncodedMethod);
CfCode cfCode =
- new CfAPIConverterVivifiedWrapperCodeProvider(
- newDexEncodedMethod,
- newDexEncodedMethod.method,
- appView,
- newDexEncodedMethod.method,
- wrapperField.field,
- converter)
- .getCfCode();
- newDexEncodedMethod.setCode(cfCode, appView);
+ new APIConverterVivifiedWrapperCfCodeProvider(
+ appView, methodToInstall, wrapperField.field, converter)
+ .generateCfCode();
+ DexEncodedMethod newDexEncodedMethod =
+ newSynthesizedMethod(methodToInstall, dexEncodedMethod, cfCode);
generatedMethods.add(newDexEncodedMethod);
}
return generatedMethods.toArray(DexEncodedMethod.EMPTY_ARRAY);
}
- private DexEncodedMethod[] synthetiseVirtualMethodsForTypeWrapper(
+ private DexEncodedMethod[] synthesizeVirtualMethodsForTypeWrapper(
DexLibraryClass dexClass, DexEncodedField wrapperField) {
List<DexEncodedMethod> dexMethods = allImplementedMethods(dexClass);
List<DexEncodedMethod> generatedMethods = new ArrayList<>();
@@ -279,18 +274,12 @@
DexMethod methodToInstall =
methodWithVivifiedTypeInSignature(dexEncodedMethod.method, wrapperField.field.holder);
- DexEncodedMethod newDexEncodedMethod =
- newSynthesizedMethod(methodToInstall, dexEncodedMethod);
CfCode cfCode =
- new CfAPIConverterWrapperCodeProvider(
- newDexEncodedMethod,
- newDexEncodedMethod.method,
- appView,
- dexEncodedMethod.method,
- wrapperField.field,
- converter)
- .getCfCode();
- newDexEncodedMethod.setCode(cfCode, appView);
+ new APIConverterWrapperCfCodeProvider(
+ appView, dexEncodedMethod.method, wrapperField.field, converter)
+ .generateCfCode();
+ DexEncodedMethod newDexEncodedMethod =
+ newSynthesizedMethod(methodToInstall, dexEncodedMethod, cfCode);
generatedMethods.add(newDexEncodedMethod);
}
return generatedMethods.toArray(DexEncodedMethod.EMPTY_ARRAY);
@@ -315,7 +304,7 @@
}
private DexEncodedMethod newSynthesizedMethod(
- DexMethod methodToInstall, DexEncodedMethod template) {
+ DexMethod methodToInstall, DexEncodedMethod template, Code code) {
MethodAccessFlags newFlags = template.accessFlags.copy();
assert newFlags.isPublic();
newFlags.unsetAbstract();
@@ -325,7 +314,7 @@
newFlags,
DexAnnotationSet.empty(),
ParameterAnnotationsList.empty(),
- null);
+ code);
}
private List<DexEncodedMethod> allImplementedMethods(DexLibraryClass libraryClass) {
@@ -380,24 +369,22 @@
field.holder,
factory.createProto(factory.voidType, field.type),
factory.initMethodName);
- DexEncodedMethod dexEncodedMethod =
- newSynthesizedMethod(method, Constants.ACC_PRIVATE | Constants.ACC_SYNTHETIC, true);
- dexEncodedMethod.setCode(
- new CfAPIConverterConstructorCodeProvider(dexEncodedMethod, method, appView, field)
- .getCfCode(),
- appView);
- return dexEncodedMethod;
+ return newSynthesizedMethod(
+ method,
+ Constants.ACC_PRIVATE | Constants.ACC_SYNTHETIC,
+ true,
+ new APIConverterConstructorCfCodeProvider(appView, field).generateCfCode());
}
private DexEncodedMethod newSynthesizedMethod(
- DexMethod methodToInstall, int flags, boolean constructor) {
+ DexMethod methodToInstall, int flags, boolean constructor, Code code) {
MethodAccessFlags accessFlags = MethodAccessFlags.fromSharedAccessFlags(flags, constructor);
return new DexEncodedMethod(
methodToInstall,
accessFlags,
DexAnnotationSet.empty(),
ParameterAnnotationsList.empty(),
- null);
+ code);
}
// Wrapper finalization section.
@@ -463,19 +450,17 @@
DexMethod method =
factory.createMethod(
holder, factory.createProto(returnType, argType), factory.convertMethodName);
- DexEncodedMethod dexEncodedMethod =
- newSynthesizedMethod(
- method, Constants.ACC_SYNTHETIC | Constants.ACC_STATIC | Constants.ACC_PUBLIC, false);
- dexEncodedMethod.setCode(
- new CfAPIConverterWrapperConversionCodeProvider(
- dexEncodedMethod,
- method,
+ CfCode cfCode =
+ new APIConverterWrapperConversionCfCodeProvider(
appView,
argType,
reverseWrapperType,
factory.createField(holder, returnType, factory.wrapperFieldName))
- .getCfCode(),
- appView);
- return dexEncodedMethod;
+ .generateCfCode();
+ return newSynthesizedMethod(
+ method,
+ Constants.ACC_SYNTHETIC | Constants.ACC_STATIC | Constants.ACC_PUBLIC,
+ false,
+ cfCode);
}
}
diff --git a/src/main/java/com/android/tools/r8/ir/synthetic/CfSyntheticSourceCodeProvider.java b/src/main/java/com/android/tools/r8/ir/synthetic/CfSyntheticSourceCodeProvider.java
deleted file mode 100644
index 8d45643..0000000
--- a/src/main/java/com/android/tools/r8/ir/synthetic/CfSyntheticSourceCodeProvider.java
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2019, the R8 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.
-
-package com.android.tools.r8.ir.synthetic;
-
-import com.android.tools.r8.cf.code.CfInstruction;
-import com.android.tools.r8.cf.code.CfTryCatch;
-import com.android.tools.r8.graph.AppView;
-import com.android.tools.r8.graph.CfCode;
-import com.android.tools.r8.graph.DexEncodedMethod;
-import com.android.tools.r8.graph.DexMethod;
-import com.android.tools.r8.ir.code.Position;
-import com.android.tools.r8.ir.conversion.CfSourceCode;
-import com.android.tools.r8.ir.conversion.SourceCode;
-import com.android.tools.r8.ir.synthetic.AbstractSynthesizedCode.SourceCodeProvider;
-import com.android.tools.r8.origin.Origin;
-import com.google.common.collect.ImmutableList;
-import java.util.List;
-
-// TODO(b/134732760): I think a general clean-up is required here.
-// Instead of being a sourceCodeProvider, this should just have API getCfCode() and not
-// get(Position). All users should be rewritten to use getCfCode(). That would simplify a lot the
-// code everywhere.
-public abstract class CfSyntheticSourceCodeProvider implements SourceCodeProvider {
-
- private final DexEncodedMethod method;
- private final DexMethod originalMethod;
- protected final AppView<?> appView;
-
- public CfSyntheticSourceCodeProvider(
- DexEncodedMethod method, DexMethod originalMethod, AppView<?> appView) {
- this.method = method;
- this.originalMethod = originalMethod;
- this.appView = appView;
- }
-
- @Override
- public SourceCode get(Position callerPosition) {
- CfCode code = generateCfCode(callerPosition);
- return new CfSourceCode(
- code,
- code.getLocalVariables(),
- method,
- originalMethod,
- callerPosition,
- Origin.unknown(),
- appView);
- }
-
- public CfCode getCfCode() {
- return generateCfCode(null);
- }
-
- protected abstract CfCode generateCfCode(Position callerPosition);
-
- protected CfCode standardCfCodeFromInstructions(List<CfInstruction> instructions) {
- return new CfCode(
- method.method.holder,
- defaultMaxStack(),
- defaultMaxLocals(),
- instructions,
- defaultTryCatchs(),
- ImmutableList.of());
- }
-
- protected int defaultMaxStack() {
- return 16;
- }
-
- protected int defaultMaxLocals() {
- return 16;
- }
-
- protected List<CfTryCatch> defaultTryCatchs() {
- return ImmutableList.of();
- }
-}
diff --git a/src/main/java/com/android/tools/r8/ir/synthetic/CfDesugaredLibraryAPIConversionSourceCodeProvider.java b/src/main/java/com/android/tools/r8/ir/synthetic/DesugaredLibraryAPIConversionCfCodeProvider.java
similarity index 84%
rename from src/main/java/com/android/tools/r8/ir/synthetic/CfDesugaredLibraryAPIConversionSourceCodeProvider.java
rename to src/main/java/com/android/tools/r8/ir/synthetic/DesugaredLibraryAPIConversionCfCodeProvider.java
index c177828..00eb005 100644
--- a/src/main/java/com/android/tools/r8/ir/synthetic/CfDesugaredLibraryAPIConversionSourceCodeProvider.java
+++ b/src/main/java/com/android/tools/r8/ir/synthetic/DesugaredLibraryAPIConversionCfCodeProvider.java
@@ -19,7 +19,6 @@
import com.android.tools.r8.cf.code.CfStackInstruction;
import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.CfCode;
-import com.android.tools.r8.graph.DexEncodedMethod;
import com.android.tools.r8.graph.DexField;
import com.android.tools.r8.graph.DexItemFactory;
import com.android.tools.r8.graph.DexMethod;
@@ -27,7 +26,6 @@
import com.android.tools.r8.graph.DexString;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.ir.code.If;
-import com.android.tools.r8.ir.code.Position;
import com.android.tools.r8.ir.code.ValueType;
import com.android.tools.r8.ir.desugar.DesugaredLibraryAPIConverter;
import com.android.tools.r8.utils.StringDiagnostic;
@@ -35,9 +33,9 @@
import java.util.List;
import org.objectweb.asm.Opcodes;
-public class CfDesugaredLibraryAPIConversionSourceCodeProvider {
+public class DesugaredLibraryAPIConversionCfCodeProvider {
- static boolean shouldConvert(
+ private static boolean shouldConvert(
DexType type,
DesugaredLibraryAPIConverter converter,
AppView<?> appView,
@@ -58,28 +56,25 @@
return false;
}
- public static class CfAPIConverterVivifiedWrapperCodeProvider
- extends CfSyntheticSourceCodeProvider {
+ public static class APIConverterVivifiedWrapperCfCodeProvider extends SyntheticCfCodeProvider {
DexField wrapperField;
DexMethod forwardMethod;
DesugaredLibraryAPIConverter converter;
- public CfAPIConverterVivifiedWrapperCodeProvider(
- DexEncodedMethod method,
- DexMethod originalMethod,
+ public APIConverterVivifiedWrapperCfCodeProvider(
AppView<?> appView,
DexMethod forwardMethod,
- DexField wrappedValue,
+ DexField wrapperField,
DesugaredLibraryAPIConverter converter) {
- super(method, originalMethod, appView);
+ super(appView, wrapperField.holder);
this.forwardMethod = forwardMethod;
- this.wrapperField = wrappedValue;
+ this.wrapperField = wrapperField;
this.converter = converter;
}
@Override
- protected CfCode generateCfCode(Position callerPosition) {
+ public CfCode generateCfCode() {
DexItemFactory factory = appView.dexItemFactory();
List<CfInstruction> instructions = new ArrayList<>();
// Wrapped value is a vivified type. Method uses type as external. Forward method should
@@ -136,27 +131,25 @@
}
}
- public static class CfAPIConverterWrapperCodeProvider extends CfSyntheticSourceCodeProvider {
+ public static class APIConverterWrapperCfCodeProvider extends SyntheticCfCodeProvider {
DexField wrapperField;
DexMethod forwardMethod;
DesugaredLibraryAPIConverter converter;
- public CfAPIConverterWrapperCodeProvider(
- DexEncodedMethod method,
- DexMethod originalMethod,
+ public APIConverterWrapperCfCodeProvider(
AppView<?> appView,
DexMethod forwardMethod,
- DexField wrappedValue,
+ DexField wrapperField,
DesugaredLibraryAPIConverter converter) {
- super(method, originalMethod, appView);
+ super(appView, wrapperField.holder);
this.forwardMethod = forwardMethod;
- this.wrapperField = wrappedValue;
+ this.wrapperField = wrapperField;
this.converter = converter;
}
@Override
- protected CfCode generateCfCode(Position callerPosition) {
+ public CfCode generateCfCode() {
DexItemFactory factory = appView.dexItemFactory();
List<CfInstruction> instructions = new ArrayList<>();
// Wrapped value is a type. Method uses vivifiedTypes as external. Forward method should
@@ -202,28 +195,22 @@
}
}
- public static class CfAPIConverterWrapperConversionCodeProvider
- extends CfSyntheticSourceCodeProvider {
+ public static class APIConverterWrapperConversionCfCodeProvider extends SyntheticCfCodeProvider {
DexType argType;
DexType reverseWrapperType;
DexField wrapperField;
- public CfAPIConverterWrapperConversionCodeProvider(
- DexEncodedMethod method,
- DexMethod originalMethod,
- AppView<?> appView,
- DexType argType,
- DexType reverseWrapperType,
- DexField wrapperField) {
- super(method, originalMethod, appView);
+ public APIConverterWrapperConversionCfCodeProvider(
+ AppView<?> appView, DexType argType, DexType reverseWrapperType, DexField wrapperField) {
+ super(appView, wrapperField.holder);
this.argType = argType;
this.reverseWrapperType = reverseWrapperType;
this.wrapperField = wrapperField;
}
@Override
- protected CfCode generateCfCode(Position callerPosition) {
+ public CfCode generateCfCode() {
DexItemFactory factory = appView.dexItemFactory();
List<CfInstruction> instructions = new ArrayList<>();
@@ -265,18 +252,17 @@
}
}
- public static class CfAPIConverterConstructorCodeProvider extends CfSyntheticSourceCodeProvider {
+ public static class APIConverterConstructorCfCodeProvider extends SyntheticCfCodeProvider {
DexField wrapperField;
- public CfAPIConverterConstructorCodeProvider(
- DexEncodedMethod method, DexMethod originalMethod, AppView<?> appView, DexField field) {
- super(method, originalMethod, appView);
- this.wrapperField = field;
+ public APIConverterConstructorCfCodeProvider(AppView<?> appView, DexField wrapperField) {
+ super(appView, wrapperField.holder);
+ this.wrapperField = wrapperField;
}
@Override
- protected CfCode generateCfCode(Position callerPosition) {
+ public CfCode generateCfCode() {
DexItemFactory factory = appView.dexItemFactory();
List<CfInstruction> instructions = new ArrayList<>();
instructions.add(new CfLoad(ValueType.fromDexType(wrapperField.holder), 0));
diff --git a/src/main/java/com/android/tools/r8/ir/synthetic/CfEmulateInterfaceSyntheticSourceCodeProvider.java b/src/main/java/com/android/tools/r8/ir/synthetic/EmulateInterfaceSyntheticCfCodeProvider.java
similarity index 90%
rename from src/main/java/com/android/tools/r8/ir/synthetic/CfEmulateInterfaceSyntheticSourceCodeProvider.java
rename to src/main/java/com/android/tools/r8/ir/synthetic/EmulateInterfaceSyntheticCfCodeProvider.java
index b3c1567..3cb4210 100644
--- a/src/main/java/com/android/tools/r8/ir/synthetic/CfEmulateInterfaceSyntheticSourceCodeProvider.java
+++ b/src/main/java/com/android/tools/r8/ir/synthetic/EmulateInterfaceSyntheticCfCodeProvider.java
@@ -15,33 +15,29 @@
import com.android.tools.r8.cf.code.CfReturnVoid;
import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.CfCode;
-import com.android.tools.r8.graph.DexEncodedMethod;
import com.android.tools.r8.graph.DexMethod;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.ir.code.If;
-import com.android.tools.r8.ir.code.Position;
import com.android.tools.r8.ir.code.ValueType;
import com.android.tools.r8.utils.Pair;
import java.util.ArrayList;
import java.util.List;
import org.objectweb.asm.Opcodes;
-public class CfEmulateInterfaceSyntheticSourceCodeProvider extends CfSyntheticSourceCodeProvider {
+public class EmulateInterfaceSyntheticCfCodeProvider extends SyntheticCfCodeProvider {
private final DexType interfaceType;
private final DexMethod companionMethod;
private final DexMethod libraryMethod;
private final List<Pair<DexType, DexMethod>> extraDispatchCases;
- public CfEmulateInterfaceSyntheticSourceCodeProvider(
+ public EmulateInterfaceSyntheticCfCodeProvider(
DexType interfaceType,
DexMethod companionMethod,
- DexEncodedMethod method,
DexMethod libraryMethod,
- DexMethod originalMethod,
List<Pair<DexType, DexMethod>> extraDispatchCases,
AppView<?> appView) {
- super(method, originalMethod, appView);
+ super(appView, interfaceType);
this.interfaceType = interfaceType;
this.companionMethod = companionMethod;
this.libraryMethod = libraryMethod;
@@ -49,7 +45,7 @@
}
@Override
- protected CfCode generateCfCode(Position callerPosition) {
+ public CfCode generateCfCode() {
List<CfInstruction> instructions = new ArrayList<>();
CfLabel[] labels = new CfLabel[extraDispatchCases.size() + 1];
for (int i = 0; i < labels.length; i++) {
diff --git a/src/main/java/com/android/tools/r8/ir/synthetic/SyntheticCfCodeProvider.java b/src/main/java/com/android/tools/r8/ir/synthetic/SyntheticCfCodeProvider.java
new file mode 100644
index 0000000..c01b0b8
--- /dev/null
+++ b/src/main/java/com/android/tools/r8/ir/synthetic/SyntheticCfCodeProvider.java
@@ -0,0 +1,48 @@
+// Copyright (c) 2019, the R8 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.
+
+package com.android.tools.r8.ir.synthetic;
+
+import com.android.tools.r8.cf.code.CfInstruction;
+import com.android.tools.r8.cf.code.CfTryCatch;
+import com.android.tools.r8.graph.AppView;
+import com.android.tools.r8.graph.CfCode;
+import com.android.tools.r8.graph.DexType;
+import com.google.common.collect.ImmutableList;
+import java.util.List;
+
+public abstract class SyntheticCfCodeProvider {
+
+ protected final AppView<?> appView;
+ private final DexType holder;
+
+ protected SyntheticCfCodeProvider(AppView<?> appView, DexType holder) {
+ this.appView = appView;
+ this.holder = holder;
+ }
+
+ public abstract CfCode generateCfCode();
+
+ protected CfCode standardCfCodeFromInstructions(List<CfInstruction> instructions) {
+ return new CfCode(
+ holder,
+ defaultMaxStack(),
+ defaultMaxLocals(),
+ instructions,
+ defaultTryCatchs(),
+ ImmutableList.of());
+ }
+
+ protected int defaultMaxStack() {
+ return 16;
+ }
+
+ protected int defaultMaxLocals() {
+ return 16;
+ }
+
+ protected List<CfTryCatch> defaultTryCatchs() {
+ return ImmutableList.of();
+ }
+}
