org.extendj.ast.AssertStmt Maven / Gradle / Ivy
/* This file was generated with JastAdd2 (http://jastadd.org) version 2.3.0 */
package org.extendj.ast;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.ArrayList;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.*;
import java.util.zip.*;
import java.io.*;
import org.jastadd.util.PrettyPrintable;
import org.jastadd.util.PrettyPrinter;
import org.jastadd.util.*;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.IOException;
import java.util.Set;
import beaver.*;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
/**
* @ast node
* @declaredat /home/jesper/git/extendj/java4/grammar/Java.ast:321
* @astdecl AssertStmt : Stmt ::= Condition:Expr [Message:Expr];
* @production AssertStmt : {@link Stmt} ::= Condition:{@link Expr} [Message:{@link Expr}];
*/
public class AssertStmt extends Stmt implements Cloneable {
/**
* @aspect Java4PrettyPrint
* @declaredat /home/jesper/git/extendj/java4/frontend/PrettyPrint.jadd:68
*/
public void prettyPrint(PrettyPrinter out) {
if (hasMessage()) {
out.print("assert ");
out.print(getCondition());
out.print(" : ");
out.print(getMessage());
out.print(";");
} else {
out.print("assert ");
out.print(getCondition());
out.print(";");
}
}
/**
* Assert statement bytecode is generated through the transformed
* version of the assert statement.
* @aspect CreateBCode
* @declaredat /home/jesper/git/extendj/java4/backend/CreateBCode.jrag:1934
*/
public void createBCode(CodeGeneration gen) {
transformed().createBCode(gen);
}
/**
* @declaredat ASTNode:1
*/
public AssertStmt() {
super();
}
/**
* Initializes the child array to the correct size.
* Initializes List and Opt nta children.
* @apilevel internal
* @ast method
* @declaredat ASTNode:10
*/
public void init$Children() {
children = new ASTNode[2];
setChild(new Opt(), 1);
}
/**
* @declaredat ASTNode:14
*/
@ASTNodeAnnotation.Constructor(
name = {"Condition", "Message"},
type = {"Expr", "Opt"},
kind = {"Child", "Opt"}
)
public AssertStmt(Expr p0, Opt p1) {
setChild(p0, 0);
setChild(p1, 1);
}
/** @apilevel low-level
* @declaredat ASTNode:24
*/
protected int numChildren() {
return 2;
}
/**
* @apilevel internal
* @declaredat ASTNode:30
*/
public boolean mayHaveRewrite() {
return false;
}
/** @apilevel internal
* @declaredat ASTNode:34
*/
public void flushAttrCache() {
super.flushAttrCache();
assignedAfter_Variable_reset();
unassignedAfter_Variable_reset();
transformed_reset();
}
/** @apilevel internal
* @declaredat ASTNode:41
*/
public void flushCollectionCache() {
super.flushCollectionCache();
}
/** @apilevel internal
* @declaredat ASTNode:45
*/
public AssertStmt clone() throws CloneNotSupportedException {
AssertStmt node = (AssertStmt) super.clone();
return node;
}
/** @apilevel internal
* @declaredat ASTNode:50
*/
public AssertStmt copy() {
try {
AssertStmt node = (AssertStmt) clone();
node.parent = null;
if (children != null) {
node.children = (ASTNode[]) children.clone();
}
return node;
} catch (CloneNotSupportedException e) {
throw new Error("Error: clone not supported for " + getClass().getName());
}
}
/**
* Create a deep copy of the AST subtree at this node.
* The copy is dangling, i.e. has no parent.
* @return dangling copy of the subtree at this node
* @apilevel low-level
* @deprecated Please use treeCopy or treeCopyNoTransform instead
* @declaredat ASTNode:69
*/
@Deprecated
public AssertStmt fullCopy() {
return treeCopyNoTransform();
}
/**
* Create a deep copy of the AST subtree at this node.
* The copy is dangling, i.e. has no parent.
* @return dangling copy of the subtree at this node
* @apilevel low-level
* @declaredat ASTNode:79
*/
public AssertStmt treeCopyNoTransform() {
AssertStmt tree = (AssertStmt) copy();
if (children != null) {
for (int i = 0; i < children.length; ++i) {
ASTNode child = (ASTNode) children[i];
if (child != null) {
child = child.treeCopyNoTransform();
tree.setChild(child, i);
}
}
}
return tree;
}
/**
* Create a deep copy of the AST subtree at this node.
* The subtree of this node is traversed to trigger rewrites before copy.
* The copy is dangling, i.e. has no parent.
* @return dangling copy of the subtree at this node
* @apilevel low-level
* @declaredat ASTNode:99
*/
public AssertStmt treeCopy() {
AssertStmt tree = (AssertStmt) copy();
if (children != null) {
for (int i = 0; i < children.length; ++i) {
ASTNode child = (ASTNode) getChild(i);
if (child != null) {
child = child.treeCopy();
tree.setChild(child, i);
}
}
}
return tree;
}
/** @apilevel internal
* @declaredat ASTNode:113
*/
protected boolean is$Equal(ASTNode node) {
return super.is$Equal(node);
}
/**
* Replaces the Condition child.
* @param node The new node to replace the Condition child.
* @apilevel high-level
*/
public void setCondition(Expr node) {
setChild(node, 0);
}
/**
* Retrieves the Condition child.
* @return The current node used as the Condition child.
* @apilevel high-level
*/
@ASTNodeAnnotation.Child(name="Condition")
public Expr getCondition() {
return (Expr) getChild(0);
}
/**
* Retrieves the Condition child.
* This method does not invoke AST transformations.
* @return The current node used as the Condition child.
* @apilevel low-level
*/
public Expr getConditionNoTransform() {
return (Expr) getChildNoTransform(0);
}
/**
* Replaces the optional node for the Message child. This is the Opt
* node containing the child Message, not the actual child!
* @param opt The new node to be used as the optional node for the Message child.
* @apilevel low-level
*/
public void setMessageOpt(Opt opt) {
setChild(opt, 1);
}
/**
* Replaces the (optional) Message child.
* @param node The new node to be used as the Message child.
* @apilevel high-level
*/
public void setMessage(Expr node) {
getMessageOpt().setChild(node, 0);
}
/**
* Check whether the optional Message child exists.
* @return {@code true} if the optional Message child exists, {@code false} if it does not.
* @apilevel high-level
*/
public boolean hasMessage() {
return getMessageOpt().getNumChild() != 0;
}
/**
* Retrieves the (optional) Message child.
* @return The Message child, if it exists. Returns {@code null} otherwise.
* @apilevel low-level
*/
public Expr getMessage() {
return (Expr) getMessageOpt().getChild(0);
}
/**
* Retrieves the optional node for the Message child. This is the Opt node containing the child Message, not the actual child!
* @return The optional node for child the Message child.
* @apilevel low-level
*/
@ASTNodeAnnotation.OptChild(name="Message")
public Opt getMessageOpt() {
return (Opt) getChild(1);
}
/**
* Retrieves the optional node for child Message. This is the Opt node containing the child Message, not the actual child!
* This method does not invoke AST transformations.
* @return The optional node for child Message.
* @apilevel low-level
*/
public Opt getMessageOptNoTransform() {
return (Opt) getChildNoTransform(1);
}
/** @apilevel internal */
private void assignedAfter_Variable_reset() {
assignedAfter_Variable_values = null;
}
protected java.util.Map assignedAfter_Variable_values;
@ASTNodeAnnotation.Attribute(kind=ASTNodeAnnotation.Kind.SYN, isCircular=true)
@ASTNodeAnnotation.Source(aspect="DefiniteAssignment", declaredAt="/home/jesper/git/extendj/java4/frontend/DefiniteAssignment.jrag:264")
public boolean assignedAfter(Variable v) {
Object _parameters = v;
if (assignedAfter_Variable_values == null) assignedAfter_Variable_values = new java.util.HashMap(4);
ASTState.CircularValue _value;
if (assignedAfter_Variable_values.containsKey(_parameters)) {
Object _cache = assignedAfter_Variable_values.get(_parameters);
if (!(_cache instanceof ASTState.CircularValue)) {
return (Boolean) _cache;
} else {
_value = (ASTState.CircularValue) _cache;
}
} else {
_value = new ASTState.CircularValue();
assignedAfter_Variable_values.put(_parameters, _value);
_value.value = true;
}
ASTState state = state();
if (!state.inCircle() || state.calledByLazyAttribute()) {
state.enterCircle();
boolean new_assignedAfter_Variable_value;
do {
_value.cycle = state.nextCycle();
new_assignedAfter_Variable_value = getCondition().assignedAfter(v);
if (((Boolean)_value.value) != new_assignedAfter_Variable_value) {
state.setChangeInCycle();
_value.value = new_assignedAfter_Variable_value;
}
} while (state.testAndClearChangeInCycle());
assignedAfter_Variable_values.put(_parameters, new_assignedAfter_Variable_value);
state.leaveCircle();
return new_assignedAfter_Variable_value;
} else if (_value.cycle != state.cycle()) {
_value.cycle = state.cycle();
boolean new_assignedAfter_Variable_value = getCondition().assignedAfter(v);
if (((Boolean)_value.value) != new_assignedAfter_Variable_value) {
state.setChangeInCycle();
_value.value = new_assignedAfter_Variable_value;
}
return new_assignedAfter_Variable_value;
} else {
return (Boolean) _value.value;
}
}
/** @apilevel internal */
private void unassignedAfter_Variable_reset() {
unassignedAfter_Variable_values = null;
}
protected java.util.Map unassignedAfter_Variable_values;
@ASTNodeAnnotation.Attribute(kind=ASTNodeAnnotation.Kind.SYN, isCircular=true)
@ASTNodeAnnotation.Source(aspect="DefiniteUnassignment", declaredAt="/home/jesper/git/extendj/java4/frontend/DefiniteAssignment.jrag:895")
public boolean unassignedAfter(Variable v) {
Object _parameters = v;
if (unassignedAfter_Variable_values == null) unassignedAfter_Variable_values = new java.util.HashMap(4);
ASTState.CircularValue _value;
if (unassignedAfter_Variable_values.containsKey(_parameters)) {
Object _cache = unassignedAfter_Variable_values.get(_parameters);
if (!(_cache instanceof ASTState.CircularValue)) {
return (Boolean) _cache;
} else {
_value = (ASTState.CircularValue) _cache;
}
} else {
_value = new ASTState.CircularValue();
unassignedAfter_Variable_values.put(_parameters, _value);
_value.value = true;
}
ASTState state = state();
if (!state.inCircle() || state.calledByLazyAttribute()) {
state.enterCircle();
boolean new_unassignedAfter_Variable_value;
do {
_value.cycle = state.nextCycle();
new_unassignedAfter_Variable_value = getCondition().unassignedAfter(v);
if (((Boolean)_value.value) != new_unassignedAfter_Variable_value) {
state.setChangeInCycle();
_value.value = new_unassignedAfter_Variable_value;
}
} while (state.testAndClearChangeInCycle());
unassignedAfter_Variable_values.put(_parameters, new_unassignedAfter_Variable_value);
state.leaveCircle();
return new_unassignedAfter_Variable_value;
} else if (_value.cycle != state.cycle()) {
_value.cycle = state.cycle();
boolean new_unassignedAfter_Variable_value = getCondition().unassignedAfter(v);
if (((Boolean)_value.value) != new_unassignedAfter_Variable_value) {
state.setChangeInCycle();
_value.value = new_unassignedAfter_Variable_value;
}
return new_unassignedAfter_Variable_value;
} else {
return (Boolean) _value.value;
}
}
/** @apilevel internal */
private void transformed_reset() {
transformed_computed = false;
transformed_value = null;
}
/** @apilevel internal */
protected boolean transformed_computed = false;
/** @apilevel internal */
protected Stmt transformed_value;
/**
* The assert statement is transformed to an if-statement that throws an
* AssertError if assertions are enabled and the assert condition is false.
* @attribute syn
* @aspect Transformations
* @declaredat /home/jesper/git/extendj/java4/backend/Transformations.jrag:83
*/
@ASTNodeAnnotation.Attribute(kind=ASTNodeAnnotation.Kind.SYN, isNTA=true)
@ASTNodeAnnotation.Source(aspect="Transformations", declaredAt="/home/jesper/git/extendj/java4/backend/Transformations.jrag:83")
public Stmt transformed() {
ASTState state = state();
if (transformed_computed) {
return transformed_value;
}
state().enterLazyAttribute();
transformed_value = transformed_compute();
transformed_value.setParent(this);
transformed_computed = true;
state().leaveLazyAttribute();
return transformed_value;
}
/** @apilevel internal */
private Stmt transformed_compute() {
FieldDeclarator assertionsDisabled = hostType().assertionsDisabled();
Expr condition = (Expr) getCondition().treeCopyNoTransform();
List args = new List();
if (hasMessage()) {
if (getMessage().type().isString()) {
args.add(new CastExpr(new TypeAccess("java.lang", "Object"),
(Expr) getMessage().treeCopyNoTransform()));
} else {
args.add(getMessage().treeCopyNoTransform());
}
}
return new IfStmt(
new LogNotExpr(
new OrLogicalExpr(
new BoundFieldAccess(assertionsDisabled),
condition)),
new ThrowStmt(
new ClassInstanceExpr(
lookupType("java.lang", "AssertionError").createQualifiedAccess(),
args,
new Opt())),
new Opt());
}
/**
* @attribute syn
* @aspect Java2Rewrites
* @declaredat /home/jesper/git/extendj/java4/backend/Java2Rewrites.jrag:97
*/
@ASTNodeAnnotation.Attribute(kind=ASTNodeAnnotation.Kind.SYN)
@ASTNodeAnnotation.Source(aspect="Java2Rewrites", declaredAt="/home/jesper/git/extendj/java4/backend/Java2Rewrites.jrag:97")
public boolean hasAssertStatementRecursive() {
boolean hasAssertStatementRecursive_value = true;
return hasAssertStatementRecursive_value;
}
/**
* @declaredat /home/jesper/git/extendj/java4/frontend/DefiniteAssignment.jrag:256
* @apilevel internal
*/
public boolean Define_assignedBefore(ASTNode _callerNode, ASTNode _childNode, Variable v) {
if (_callerNode == getMessageOptNoTransform()) {
// @declaredat /home/jesper/git/extendj/java4/frontend/DefiniteAssignment.jrag:520
return getCondition().assignedAfter(v);
}
else {
return getParent().Define_assignedBefore(this, _callerNode, v);
}
}
/**
* @declaredat /home/jesper/git/extendj/java4/frontend/DefiniteAssignment.jrag:256
* @apilevel internal
* @return {@code true} if this node has an equation for the inherited attribute assignedBefore
*/
protected boolean canDefine_assignedBefore(ASTNode _callerNode, ASTNode _childNode, Variable v) {
return true;
}
/** @apilevel internal */
public ASTNode rewriteTo() {
return super.rewriteTo();
}
/** @apilevel internal */
public boolean canRewrite() {
return false;
}
/** @apilevel internal */
protected void collect_contributors_CompilationUnit_problems(CompilationUnit _root, java.util.Map> _map) {
// @declaredat /home/jesper/git/extendj/java4/frontend/TypeCheck.jrag:502
if (!getCondition().type().isBoolean()) {
{
java.util.Set contributors = _map.get(_root);
if (contributors == null) {
contributors = new java.util.LinkedHashSet();
_map.put((ASTNode) _root, contributors);
}
contributors.add(this);
}
}
// @declaredat /home/jesper/git/extendj/java4/frontend/TypeCheck.jrag:507
if (hasMessage() && getMessage().type().isVoid()) {
{
java.util.Set contributors = _map.get(_root);
if (contributors == null) {
contributors = new java.util.LinkedHashSet();
_map.put((ASTNode) _root, contributors);
}
contributors.add(this);
}
}
super.collect_contributors_CompilationUnit_problems(_root, _map);
}
/** @apilevel internal */
protected void contributeTo_CompilationUnit_problems(LinkedList collection) {
super.contributeTo_CompilationUnit_problems(collection);
if (!getCondition().type().isBoolean()) {
collection.add(error("Assert requires boolean condition"));
}
if (hasMessage() && getMessage().type().isVoid()) {
collection.add(error("The detail message of an assert statement may not be void"));
}
}
}