548 lines
22 KiB
Java
548 lines
22 KiB
Java
/******************************************************************************
|
|
* Copyright (c) 2002 - 2006 IBM Corporation.
|
|
* All rights reserved. This program and the accompanying materials
|
|
* are made available under the terms of the Eclipse Public License v1.0
|
|
* which accompanies this distribution, and is available at
|
|
* http://www.eclipse.org/legal/epl-v10.html
|
|
*
|
|
* Contributors:
|
|
* IBM Corporation - initial API and implementation
|
|
*****************************************************************************/
|
|
package com.ibm.wala.cast.js.ipa.callgraph;
|
|
|
|
import java.io.File;
|
|
import java.io.FileWriter;
|
|
import java.io.IOException;
|
|
import java.util.Map;
|
|
import java.util.Set;
|
|
|
|
import com.ibm.wala.cast.js.ipa.summaries.JavaScriptSummarizedFunction;
|
|
import com.ibm.wala.cast.js.ipa.summaries.JavaScriptSummary;
|
|
import com.ibm.wala.cast.js.loader.JSCallSiteReference;
|
|
import com.ibm.wala.cast.js.loader.JavaScriptLoader;
|
|
import com.ibm.wala.cast.js.ssa.JSInstructionFactory;
|
|
import com.ibm.wala.cast.js.types.JavaScriptMethods;
|
|
import com.ibm.wala.cast.js.types.JavaScriptTypes;
|
|
import com.ibm.wala.cast.types.AstMethodReference;
|
|
import com.ibm.wala.classLoader.CallSiteReference;
|
|
import com.ibm.wala.classLoader.IClass;
|
|
import com.ibm.wala.classLoader.IMethod;
|
|
import com.ibm.wala.classLoader.NewSiteReference;
|
|
import com.ibm.wala.ipa.callgraph.CGNode;
|
|
import com.ibm.wala.ipa.callgraph.MethodTargetSelector;
|
|
import com.ibm.wala.ipa.cha.IClassHierarchy;
|
|
import com.ibm.wala.ipa.summaries.MethodSummary;
|
|
import com.ibm.wala.ssa.ConstantValue;
|
|
import com.ibm.wala.ssa.IR;
|
|
import com.ibm.wala.ssa.SSAAbstractInvokeInstruction;
|
|
import com.ibm.wala.ssa.SymbolTable;
|
|
import com.ibm.wala.types.MethodReference;
|
|
import com.ibm.wala.types.TypeName;
|
|
import com.ibm.wala.types.TypeReference;
|
|
import com.ibm.wala.util.collections.HashMapFactory;
|
|
import com.ibm.wala.util.collections.Pair;
|
|
|
|
public class JavaScriptConstructTargetSelector implements MethodTargetSelector {
|
|
private static final boolean DEBUG = false;
|
|
|
|
private final IClassHierarchy cha;
|
|
|
|
private final MethodTargetSelector base;
|
|
|
|
private final Map<Object, IMethod> constructors = HashMapFactory.make();
|
|
|
|
class JavaScriptConstructor extends JavaScriptSummarizedFunction {
|
|
private final String toStringExtra;
|
|
|
|
private JavaScriptConstructor(MethodReference ref, MethodSummary summary, IClass declaringClass, String toStringExtra) {
|
|
super(ref, summary, declaringClass);
|
|
this.toStringExtra = toStringExtra;
|
|
}
|
|
|
|
private JavaScriptConstructor(MethodReference ref, MethodSummary summary, IClass declaringClass) {
|
|
this(ref, summary, declaringClass, "");
|
|
}
|
|
|
|
public String toString() {
|
|
return "<ctor for " + getReference().getDeclaringClass() + toStringExtra + ">";
|
|
}
|
|
}
|
|
|
|
public JavaScriptConstructTargetSelector(IClassHierarchy cha, MethodTargetSelector base) {
|
|
this.cha = cha;
|
|
this.base = base;
|
|
}
|
|
|
|
private IMethod record(Object key, IMethod m) {
|
|
constructors.put(key, m);
|
|
return m;
|
|
}
|
|
|
|
private IMethod makeNullaryValueConstructor(IClass cls, Object value) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(cls.getReference());
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 4, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 5, NewSiteReference.make(S.getNextProgramCounter(), cls.getReference())));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 5, 4, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addConstant(new Integer(8), new ConstantValue(value));
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 5, 8, "$value"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeUnaryValueConstructor(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(cls.getReference());
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 2);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 5, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 6, NewSiteReference.make(S.getNextProgramCounter(), cls.getReference())));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 6, 5, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 6, 2, "$value"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 6, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeValueConstructor(IClass cls, int nargs, Object value) {
|
|
if (nargs == 0 || nargs == 1) {
|
|
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, (nargs == 0) ? makeNullaryValueConstructor(cls, value) : makeUnaryValueConstructor(cls));
|
|
} else {
|
|
// not a legal call, likely due to dataflow imprecision
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private IMethod makeNullaryObjectConstructor(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(JavaScriptTypes.Object);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 4, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 5, NewSiteReference.make(S.getNextProgramCounter(), JavaScriptTypes.Object)));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 5, 4, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeUnaryObjectConstructor(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(JavaScriptTypes.Object);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 2);
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 2, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeObjectConstructor(IClass cls, int nargs) {
|
|
if (nargs == 0 || nargs == 1) {
|
|
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, (nargs == 0) ? makeNullaryObjectConstructor(cls) : makeUnaryObjectConstructor(cls));
|
|
|
|
} else {
|
|
// not a legal call, likely the result of analysis imprecision
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private IMethod makeObjectCall(IClass cls, int nargs) {
|
|
assert nargs == 0;
|
|
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, makeNullaryObjectConstructor(cls));
|
|
}
|
|
|
|
private IMethod makeArrayLengthConstructor(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(JavaScriptTypes.Array);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 2);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 5, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 6, NewSiteReference.make(S.getNextProgramCounter(), JavaScriptTypes.Array)));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 6, 5, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 6, 2, "length"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 6, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeArrayContentsConstructor(IClass cls, int nargs) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(JavaScriptTypes.Array);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, nargs + 1);
|
|
|
|
S.addConstant(new Integer(nargs + 3), new ConstantValue("prototype"));
|
|
S.addStatement(insts.PropertyRead(S.getNumberOfStatements(), nargs + 4, 1, nargs + 3));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(
|
|
insts.NewInstruction(S.getNumberOfStatements(), nargs + 5, NewSiteReference.make(S.getNextProgramCounter(),
|
|
JavaScriptTypes.Array)));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), nargs + 5, nargs + 4, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addConstant(new Integer(nargs + 7), new ConstantValue(nargs));
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), nargs + 5, nargs + 7, "length"));
|
|
S.getNextProgramCounter();
|
|
|
|
int vn = nargs + 9;
|
|
for (int i = 0; i < nargs; i++, vn += 2) {
|
|
S.addConstant(new Integer(vn), new ConstantValue(i));
|
|
S.addStatement(insts.PropertyWrite(S.getNumberOfStatements(), nargs + 5, vn, i + 1));
|
|
S.getNextProgramCounter();
|
|
}
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeArrayConstructor(IClass cls, int nargs) {
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, (nargs == 1) ? makeArrayLengthConstructor(cls) : makeArrayContentsConstructor(cls, nargs));
|
|
}
|
|
|
|
private IMethod makeNullaryStringCall(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = AstMethodReference.fnReference(JavaScriptTypes.String);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
|
|
|
|
S.addConstant(new Integer(2), new ConstantValue(""));
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 2, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeUnaryStringCall(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = AstMethodReference.fnReference(JavaScriptTypes.String);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 2);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 4, 2, "toString"));
|
|
S.getNextProgramCounter();
|
|
|
|
CallSiteReference cs = new JSCallSiteReference(S.getNextProgramCounter());
|
|
S.addStatement(insts.Invoke(4, 5, new int[] { 2 }, 6, cs));
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeStringCall(IClass cls, int nargs) {
|
|
assert nargs == 0 || nargs == 1;
|
|
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, (nargs == 0) ? makeNullaryStringCall(cls) : makeUnaryStringCall(cls));
|
|
}
|
|
|
|
private IMethod makeNullaryNumberCall(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = AstMethodReference.fnReference(JavaScriptTypes.Number);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
|
|
|
|
S.addConstant(new Integer(2), new ConstantValue(0.0));
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 2, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeUnaryNumberCall(IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
MethodReference ref = AstMethodReference.fnReference(JavaScriptTypes.Number);
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 2);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 4, 2, "toNumber"));
|
|
S.getNextProgramCounter();
|
|
|
|
CallSiteReference cs = new JSCallSiteReference(S.getNextProgramCounter());
|
|
S.addStatement(insts.Invoke(S.getNumberOfStatements(), 4, 5, new int[] { 2 }, 6, cs));
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return new JavaScriptConstructor(ref, S, cls);
|
|
}
|
|
|
|
private IMethod makeNumberCall(IClass cls, int nargs) {
|
|
assert nargs == 0 || nargs == 1;
|
|
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
else
|
|
return record(key, (nargs == 0) ? makeNullaryNumberCall(cls) : makeUnaryNumberCall(cls));
|
|
}
|
|
|
|
private IMethod makeFunctionConstructor(IClass receiver, IClass cls) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
Pair<IClass, IClass> tableKey = Pair.make(receiver, cls);
|
|
if (constructors.containsKey(tableKey))
|
|
return constructors.get(tableKey);
|
|
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(receiver.getReference());
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), 4, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 5, NewSiteReference.make(S.getNextProgramCounter(), cls.getReference())));
|
|
|
|
S.addStatement(insts.NewInstruction(S.getNumberOfStatements(), 7, NewSiteReference.make(S.getNextProgramCounter(), JavaScriptTypes.Object)));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 7, 4, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 5, 7, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), 7, 5, "constructor"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
if (receiver != cls)
|
|
return record(tableKey, new JavaScriptConstructor(ref, S, receiver, "(" + cls.getReference().getName() + ")"));
|
|
else
|
|
return record(tableKey, new JavaScriptConstructor(ref, S, receiver));
|
|
}
|
|
|
|
private int ctorCount = 0;
|
|
|
|
private IMethod makeFunctionConstructor(IR callerIR, SSAAbstractInvokeInstruction callStmt, IClass cls, int nargs) {
|
|
SymbolTable ST = callerIR.getSymbolTable();
|
|
|
|
if (nargs == 0) {
|
|
return makeFunctionConstructor(cls, cls);
|
|
} else if (nargs == 1) {
|
|
if (ST.isStringConstant(callStmt.getUse(1))) {
|
|
TypeReference ref = TypeReference.findOrCreate(JavaScriptTypes.jsLoader, TypeName.string2TypeName((String) ST
|
|
.getStringValue(callStmt.getUse(1))));
|
|
|
|
if (DEBUG) {
|
|
System.err.println(("ctor type name is " + (String) ST.getStringValue(callStmt.getUse(1))));
|
|
}
|
|
|
|
IClass cls2 = cha.lookupClass(ref);
|
|
if (cls2 != null) {
|
|
return makeFunctionConstructor(cls, cls2);
|
|
}
|
|
}
|
|
|
|
return makeFunctionConstructor(cls, cls);
|
|
} else {
|
|
assert nargs > 1;
|
|
JavaScriptLoader cl = (JavaScriptLoader) cha.getLoader(JavaScriptTypes.jsLoader);
|
|
|
|
for (int i = 1; i < callStmt.getNumberOfUses(); i++)
|
|
if (!ST.isStringConstant(callStmt.getUse(i)))
|
|
return makeFunctionConstructor(cls, cls);
|
|
|
|
StringBuffer fun = new StringBuffer("function _fromctor (");
|
|
for (int j = 1; j < callStmt.getNumberOfUses() - 1; j++) {
|
|
if (j != 1)
|
|
fun.append(",");
|
|
fun.append(ST.getStringValue(callStmt.getUse(j)));
|
|
}
|
|
|
|
fun.append(") {");
|
|
fun.append(ST.getStringValue(callStmt.getUse(callStmt.getNumberOfUses() - 1)));
|
|
fun.append("}");
|
|
|
|
try {
|
|
String fileName = "ctor$" + ++ctorCount;
|
|
File f = new File(System.getProperty("java.io.tmpdir") + File.separator + fileName);
|
|
FileWriter FO = new FileWriter(f);
|
|
FO.write(fun.toString());
|
|
FO.close();
|
|
|
|
Set<String> fnNames = Util.loadAdditionalFile(cha, cl, fileName, f.toURI().toURL(), f.getAbsolutePath());
|
|
IClass fcls = null;
|
|
for(String nm : fnNames) {
|
|
if (nm.endsWith("_fromctor")) {
|
|
fcls = cl.lookupClass(nm, cha);
|
|
}
|
|
}
|
|
|
|
assert fcls != null : "cannot find class for " + fileName + " in " + f;
|
|
|
|
f.delete();
|
|
|
|
if (DEBUG)
|
|
System.err.println(("looking for ctor " + ctorCount + " and got " + fcls));
|
|
|
|
if (fcls != null)
|
|
return makeFunctionConstructor(cls, fcls);
|
|
|
|
} catch (IOException e) {
|
|
|
|
}
|
|
|
|
return makeFunctionConstructor(cls, cls);
|
|
}
|
|
}
|
|
|
|
|
|
private IMethod makeFunctionObjectConstructor(IClass cls, int nargs) {
|
|
JSInstructionFactory insts = (JSInstructionFactory)cls.getClassLoader().getInstructionFactory();
|
|
Object key = Pair.make(cls, new Integer(nargs));
|
|
if (constructors.containsKey(key))
|
|
return constructors.get(key);
|
|
|
|
MethodReference ref = JavaScriptMethods.makeCtorReference(cls.getReference());
|
|
JavaScriptSummary S = new JavaScriptSummary(ref, nargs + 1);
|
|
|
|
S.addStatement(insts.GetInstruction(S.getNumberOfStatements(), nargs + 4, 1, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(
|
|
insts.NewInstruction(S.getNumberOfStatements(), nargs + 5,
|
|
NewSiteReference.make(S.getNextProgramCounter(),
|
|
JavaScriptTypes.Object)));
|
|
|
|
S.addStatement(insts.PutInstruction(S.getNumberOfStatements(), nargs + 5, nargs + 4, "prototype"));
|
|
S.getNextProgramCounter();
|
|
|
|
CallSiteReference cs = new JSCallSiteReference(S.getNextProgramCounter());
|
|
int[] args = new int[nargs + 1];
|
|
args[0] = nargs + 5;
|
|
for (int i = 0; i < nargs; i++)
|
|
args[i + 1] = i + 2;
|
|
S.addStatement(insts.Invoke(1, nargs + 7, args, nargs + 8, cs));
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), nargs + 7, false));
|
|
S.getNextProgramCounter();
|
|
|
|
S.addStatement(insts.ReturnInstruction(S.getNumberOfStatements(), nargs + 5, false));
|
|
S.getNextProgramCounter();
|
|
|
|
return record(key, new JavaScriptConstructor(ref, S, cls));
|
|
}
|
|
|
|
private IMethod findOrCreateConstructorMethod(IR callerIR, SSAAbstractInvokeInstruction callStmt, IClass receiver, int nargs) {
|
|
if (receiver.getReference().equals(JavaScriptTypes.Object))
|
|
return makeObjectConstructor(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.Array))
|
|
return makeArrayConstructor(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.StringObject))
|
|
return makeValueConstructor(receiver, nargs, "");
|
|
else if (receiver.getReference().equals(JavaScriptTypes.BooleanObject)) {
|
|
assert nargs == 1;
|
|
return makeValueConstructor(receiver, nargs, null);
|
|
} else if (receiver.getReference().equals(JavaScriptTypes.NumberObject))
|
|
return makeValueConstructor(receiver, nargs, new Integer(0));
|
|
else if (receiver.getReference().equals(JavaScriptTypes.Function))
|
|
return makeFunctionConstructor(callerIR, callStmt, receiver, nargs);
|
|
else if (cha.isSubclassOf(receiver, cha.lookupClass(JavaScriptTypes.CodeBody)))
|
|
return makeFunctionObjectConstructor(receiver, nargs);
|
|
|
|
else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("unused")
|
|
private IMethod findOrCreateCallMethod(IR callerIR, SSAAbstractInvokeInstruction callStmt, IClass receiver, int nargs) {
|
|
if (receiver.getReference().equals(JavaScriptTypes.Object))
|
|
return makeObjectCall(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.Array))
|
|
return makeArrayConstructor(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.StringObject))
|
|
return makeStringCall(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.NumberObject))
|
|
return makeNumberCall(receiver, nargs);
|
|
else if (receiver.getReference().equals(JavaScriptTypes.Function))
|
|
return makeFunctionConstructor(callerIR, callStmt, receiver, nargs);
|
|
else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public IMethod getCalleeTarget(CGNode caller, CallSiteReference site, IClass receiver) {
|
|
if (site.getDeclaredTarget().equals(JavaScriptMethods.ctorReference)) {
|
|
assert cha.isSubclassOf(receiver, cha.lookupClass(JavaScriptTypes.Root));
|
|
IR callerIR = caller.getIR();
|
|
SSAAbstractInvokeInstruction callStmts[] = callerIR.getCalls(site);
|
|
assert callStmts.length == 1;
|
|
int nargs = callStmts[0].getNumberOfUses();
|
|
return findOrCreateConstructorMethod(callerIR, callStmts[0], receiver, nargs - 1);
|
|
} else {
|
|
return base.getCalleeTarget(caller, site, receiver);
|
|
}
|
|
}
|
|
|
|
public boolean mightReturnSyntheticMethod(CGNode caller, CallSiteReference site) {
|
|
return true;
|
|
}
|
|
|
|
public boolean mightReturnSyntheticMethod(MethodReference declaredTarget) {
|
|
return true;
|
|
}
|
|
}
|