soot.Transform Maven / Gradle / Ivy
package soot;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1997 - 1999 Raja Vallee-Rai and Patrick Lam
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import soot.options.Options;
import soot.util.PhaseDumper;
/**
* Maintains the pair (phaseName, singleton) needed for a transformation.
*/
public class Transform implements HasPhaseOptions {
private static final Logger logger = LoggerFactory.getLogger(Transform.class);
final private boolean DEBUG;
final String phaseName;
final Transformer t;
public Transform(String phaseName, Transformer t) {
this.DEBUG = Options.v().dump_body().contains(phaseName);
this.phaseName = phaseName;
this.t = t;
}
public String getPhaseName() {
return phaseName;
}
public Transformer getTransformer() {
return t;
}
private String declaredOpts;
private String defaultOpts;
public String getDeclaredOptions() {
if (declaredOpts != null) {
return declaredOpts;
}
return Options.getDeclaredOptionsForPhase(phaseName);
}
public String getDefaultOptions() {
if (defaultOpts != null) {
return defaultOpts;
}
return Options.getDefaultOptionsForPhase(phaseName);
}
/**
* Allows user-defined phases to have options other than just enabled without having to mess with the XML. Call this method
* with a space-separated list of options declared for this Transform. Only declared options may be passed to this
* transform as a phase option.
*/
public void setDeclaredOptions(String options) {
declaredOpts = options;
}
/**
* Allows user-defined phases to have options other than just enabled without having to mess with the XML. Call this method
* with a space-separated list of option:value pairs that this Transform is to use as default parameters (eg
* `enabled:off').
*/
public void setDefaultOptions(String options) {
defaultOpts = options;
}
public void apply() {
Map options = PhaseOptions.v().getPhaseOptions(phaseName);
if (PhaseOptions.getBoolean(options, "enabled")) {
if (Options.v().verbose()) {
logger.debug("" + "Applying phase " + phaseName + " to the scene.");
}
}
if (DEBUG) {
PhaseDumper.v().dumpBefore(getPhaseName());
}
((SceneTransformer) t).transform(phaseName, options);
if (DEBUG) {
PhaseDumper.v().dumpAfter(getPhaseName());
}
}
public void apply(Body b) {
Map options = PhaseOptions.v().getPhaseOptions(phaseName);
if (PhaseOptions.getBoolean(options, "enabled")) {
if (Options.v().verbose()) {
logger.debug("" + "Applying phase " + phaseName + " to " + b.getMethod() + ".");
}
}
if (DEBUG) {
PhaseDumper.v().dumpBefore(b, getPhaseName());
}
((BodyTransformer) t).transform(b, phaseName, options);
if (DEBUG) {
PhaseDumper.v().dumpAfter(b, getPhaseName());
}
}
@Override
public String toString() {
return phaseName;
}
}