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Diffstat (limited to 'src/proguard/optimize/info/MethodOptimizationInfo.java')
| -rw-r--r-- | src/proguard/optimize/info/MethodOptimizationInfo.java | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/src/proguard/optimize/info/MethodOptimizationInfo.java b/src/proguard/optimize/info/MethodOptimizationInfo.java deleted file mode 100644 index 9bfdb50..0000000 --- a/src/proguard/optimize/info/MethodOptimizationInfo.java +++ /dev/null @@ -1,323 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard.optimize.info; - -import proguard.classfile.*; -import proguard.classfile.util.*; -import proguard.evaluation.value.Value; - -/** - * This class stores some optimization information that can be attached to - * a method. - * - * @author Eric Lafortune - */ -public class MethodOptimizationInfo -{ - private boolean hasNoSideEffects = false; - private boolean hasSideEffects = false; - private boolean canBeMadePrivate = true; - private boolean catchesExceptions = false; - private boolean branchesBackward = false; - private boolean invokesSuperMethods = false; - private boolean invokesDynamically = false; - private boolean accessesPrivateCode = false; - private boolean accessesPackageCode = false; - private boolean accessesProtectedCode = false; - private int invocationCount = 0; - private int parameterSize = 0; - private long usedParameters = 0L; - private Value[] parameters; - private Value returnValue; - - - /** - * Creates a new MethodOptimizationInfo for the given method. - */ - public MethodOptimizationInfo(Clazz clazz, Method method) - { - // Set up an array of the right size for storing information about the - // passed parameters. - int parameterCount = - ClassUtil.internalMethodParameterCount(method.getDescriptor(clazz)); - - if ((method.getAccessFlags() & ClassConstants.ACC_STATIC) == 0) - { - parameterCount++; - } - - if (parameterCount > 0) - { - parameters = new Value[parameterCount]; - } - } - - - public void setNoSideEffects() - { - hasNoSideEffects = true; - } - - - public boolean hasNoSideEffects() - { - return hasNoSideEffects; - } - - - public void setSideEffects() - { - hasSideEffects = true; - } - - - public boolean hasSideEffects() - { - return hasSideEffects; - } - - - public void setCanNotBeMadePrivate() - { - canBeMadePrivate = false; - } - - - public boolean canBeMadePrivate() - { - return canBeMadePrivate; - } - - - public void setCatchesExceptions() - { - catchesExceptions = true; - } - - - public boolean catchesExceptions() - { - return catchesExceptions; - } - - - public void setBranchesBackward() - { - branchesBackward = true; - } - - - public boolean branchesBackward() - { - return branchesBackward; - } - - - public void setInvokesSuperMethods() - { - invokesSuperMethods = true; - } - - - public boolean invokesSuperMethods() - { - return invokesSuperMethods; - } - - - public void setInvokesDynamically() - { - invokesDynamically = true; - } - - - public boolean invokesDynamically() - { - return invokesDynamically; - } - - - public void setAccessesPrivateCode() - { - accessesPrivateCode = true; - } - - - public boolean accessesPrivateCode() - { - return accessesPrivateCode; - } - - - public void setAccessesPackageCode() - { - accessesPackageCode = true; - } - - - public boolean accessesPackageCode() - { - return accessesPackageCode; - } - - - public void setAccessesProtectedCode() - { - accessesProtectedCode = true; - } - - - public boolean accessesProtectedCode() - { - return accessesProtectedCode; - } - - - public void incrementInvocationCount() - { - invocationCount++; - } - - - public int getInvocationCount() - { - return invocationCount; - } - - - public void setParameterSize(int parameterSize) - { - this.parameterSize = parameterSize; - } - - - public int getParameterSize() - { - return parameterSize; - } - - - public void setParameterUsed(int parameterIndex) - { - usedParameters |= 1L << parameterIndex; - } - - - public void setUsedParameters(long usedParameters) - { - this.usedParameters = usedParameters; - } - - - public boolean isParameterUsed(int parameterIndex) - { - return parameterIndex >= 64 || (usedParameters & (1L << parameterIndex)) != 0; - } - - - public long getUsedParameters() - { - return usedParameters; - } - - - public void generalizeParameter(int parameterIndex, Value parameter) - { - parameters[parameterIndex] = parameters[parameterIndex] != null ? - parameters[parameterIndex].generalize(parameter) : - parameter; - } - - - public Value getParameter(int parameterIndex) - { - return parameters != null ? - parameters[parameterIndex] : - null; - } - - - public void generalizeReturnValue(Value returnValue) - { - this.returnValue = this.returnValue != null ? - this.returnValue.generalize(returnValue) : - returnValue; - } - - - public Value getReturnValue() - { - return returnValue; - } - - - // For setting enum return values. - public void setReturnValue(Value returnValue) - { - this.returnValue = returnValue; - } - - - public void merge(MethodOptimizationInfo other) - { - if (other != null) - { - this.hasNoSideEffects &= other.hasNoSideEffects; - this.hasSideEffects |= other.hasSideEffects; - //this.canBeMadePrivate &= other.canBeMadePrivate; - this.catchesExceptions |= other.catchesExceptions; - this.branchesBackward |= other.branchesBackward; - this.invokesSuperMethods |= other.invokesSuperMethods; - this.invokesDynamically |= other.invokesDynamically; - this.accessesPrivateCode |= other.accessesPrivateCode; - this.accessesPackageCode |= other.accessesPackageCode; - this.accessesProtectedCode |= other.accessesProtectedCode; - } - else - { - this.hasNoSideEffects = false; - this.hasSideEffects = true; - //this.canBeMadePrivate = false; - this.catchesExceptions = true; - this.branchesBackward = true; - this.invokesSuperMethods = true; - this.accessesPrivateCode = true; - this.accessesPackageCode = true; - this.accessesProtectedCode = true; - } - } - - - public static void setMethodOptimizationInfo(Clazz clazz, Method method) - { - MethodLinker.lastMember(method).setVisitorInfo(new MethodOptimizationInfo(clazz, method)); - } - - - public static MethodOptimizationInfo getMethodOptimizationInfo(Method method) - { - Object visitorInfo = MethodLinker.lastMember(method).getVisitorInfo(); - - return visitorInfo instanceof MethodOptimizationInfo ? - (MethodOptimizationInfo)visitorInfo : - null; - } -} |