org.extendj.ast.EqualityExpr Maven / Gradle / Ivy
/* This file was generated with JastAdd2 (http://jastadd.org) version 2.3.0 */
package org.extendj.ast;
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.Collection;
import java.util.Collections;
import java.util.HashSet;
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.util.LinkedHashSet;
import java.util.*;
import org.jastadd.util.PrettyPrintable;
import org.jastadd.util.PrettyPrinter;
import java.util.zip.*;
import java.io.*;
import org.jastadd.util.*;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
/**
* @ast node
* @declaredat /home/jesper/git/extendj/java4/grammar/Java.ast:298
* @astdecl EqualityExpr : RelationalExpr;
* @production EqualityExpr : {@link RelationalExpr};
*/
public abstract class EqualityExpr extends RelationalExpr implements Cloneable {
/**
* @aspect AutoBoxingCodegen
* @declaredat /home/jesper/git/extendj/java5/backend/AutoBoxingCodegen.jrag:376
*/
public void branchTrue(CodeGeneration gen, int target) {
// Branch when true.
if (isConstant()) {
if (isTrue()) {
gen.GOTO(target);
return;
}
} else {
TypeDecl type = getLeftOperand().type();
if (type.isNumericType()
&& !(type.isReferenceType() && getRightOperand().type().isReferenceType())) {
type = binaryNumericPromotedType();
getLeftOperand().createBCode(gen);
getLeftOperand().emitCastTo(gen, type); // Binary numeric promotion.
getRightOperand().createBCode(gen);
getRightOperand().emitCastTo(gen, type); // Binary numeric promotion.
} else if (type.isBoolean() && type != getRightOperand().type()) {
type = binaryNumericPromotedType();
getLeftOperand().createBCode(gen);
getLeftOperand().emitCastTo(gen, type); // Binary numeric promotion.
getRightOperand().createBCode(gen);
getRightOperand().emitCastTo(gen, type); // Binary numeric promotion.
} else {
getLeftOperand().createBCode(gen);
getRightOperand().createBCode(gen);
}
compareBranch(gen, target, type);
}
}
/**
* @aspect AutoBoxingCodegen
* @declaredat /home/jesper/git/extendj/java5/backend/AutoBoxingCodegen.jrag:406
*/
public void branchFalse(CodeGeneration gen, int target) {
// Branch when false.
if (isConstant()) {
if (isFalse()) {
gen.GOTO(target);
return;
}
} else {
TypeDecl type = getLeftOperand().type();
if (type.isNumericType() && !(type.isReferenceType() && getRightOperand().type().isReferenceType())) {
type = binaryNumericPromotedType();
getLeftOperand().createBCode(gen);
getLeftOperand().emitCastTo(gen, type); // Binary numeric promotion.
getRightOperand().createBCode(gen);
getRightOperand().emitCastTo(gen, type); // Binary numeric promotion.
} else if (type.isBoolean() && type != getRightOperand().type()) {
type = binaryNumericPromotedType();
getLeftOperand().createBCode(gen);
getLeftOperand().emitCastTo(gen, type); // Binary numeric promotion.
getRightOperand().createBCode(gen);
getRightOperand().emitCastTo(gen, type); // Binary numeric promotion.
} else {
getLeftOperand().createBCode(gen);
getRightOperand().createBCode(gen);
}
compareNotBranch(gen, target, type);
}
}
/**
* @declaredat ASTNode:1
*/
public EqualityExpr() {
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];
}
/**
* @declaredat ASTNode:13
*/
@ASTNodeAnnotation.Constructor(
name = {"LeftOperand", "RightOperand"},
type = {"Expr", "Expr"},
kind = {"Child", "Child"}
)
public EqualityExpr(Expr p0, Expr p1) {
setChild(p0, 0);
setChild(p1, 1);
}
/** @apilevel low-level
* @declaredat ASTNode:23
*/
protected int numChildren() {
return 2;
}
/**
* @apilevel internal
* @declaredat ASTNode:29
*/
public boolean mayHaveRewrite() {
return false;
}
/** @apilevel internal
* @declaredat ASTNode:33
*/
public void flushAttrCache() {
super.flushAttrCache();
}
/** @apilevel internal
* @declaredat ASTNode:37
*/
public void flushCollectionCache() {
super.flushCollectionCache();
}
/** @apilevel internal
* @declaredat ASTNode:41
*/
public EqualityExpr clone() throws CloneNotSupportedException {
EqualityExpr node = (EqualityExpr) super.clone();
return node;
}
/**
* 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:52
*/
@Deprecated
public abstract EqualityExpr fullCopy();
/**
* 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:60
*/
public abstract EqualityExpr treeCopyNoTransform();
/**
* 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:68
*/
public abstract EqualityExpr treeCopy();
/**
* Replaces the LeftOperand child.
* @param node The new node to replace the LeftOperand child.
* @apilevel high-level
*/
public void setLeftOperand(Expr node) {
setChild(node, 0);
}
/**
* Retrieves the LeftOperand child.
* @return The current node used as the LeftOperand child.
* @apilevel high-level
*/
@ASTNodeAnnotation.Child(name="LeftOperand")
public Expr getLeftOperand() {
return (Expr) getChild(0);
}
/**
* Retrieves the LeftOperand child.
* This method does not invoke AST transformations.
* @return The current node used as the LeftOperand child.
* @apilevel low-level
*/
public Expr getLeftOperandNoTransform() {
return (Expr) getChildNoTransform(0);
}
/**
* Replaces the RightOperand child.
* @param node The new node to replace the RightOperand child.
* @apilevel high-level
*/
public void setRightOperand(Expr node) {
setChild(node, 1);
}
/**
* Retrieves the RightOperand child.
* @return The current node used as the RightOperand child.
* @apilevel high-level
*/
@ASTNodeAnnotation.Child(name="RightOperand")
public Expr getRightOperand() {
return (Expr) getChild(1);
}
/**
* Retrieves the RightOperand child.
* This method does not invoke AST transformations.
* @return The current node used as the RightOperand child.
* @apilevel low-level
*/
public Expr getRightOperandNoTransform() {
return (Expr) getChildNoTransform(1);
}
/**
* @attribute syn
* @aspect TypeCheck
* @declaredat /home/jesper/git/extendj/java4/frontend/TypeCheck.jrag:283
*/
@ASTNodeAnnotation.Attribute(kind=ASTNodeAnnotation.Kind.SYN)
@ASTNodeAnnotation.Source(aspect="TypeCheck", declaredAt="/home/jesper/git/extendj/java4/frontend/TypeCheck.jrag:283")
public Collection typeProblems() {
{
TypeDecl left = getLeftOperand().type();
TypeDecl right = getRightOperand().type();
if (left.isNumericType() && right.isNumericType()) {
return Collections.emptyList();
} else if (left.isBoolean() && right.isBoolean()) {
return Collections.emptyList();
} else if ((left.isReferenceType() || left.isNull())
&& (right.isReferenceType() || right.isNull())) {
if (left.castingConversionTo(right) || right.castingConversionTo(left)) {
return Collections.emptyList();
}
}
return Collections.singletonList(errorf("%s can not be compared to %s",
left.typeName(), right.typeName()));
}
}
/** @apilevel internal */
public ASTNode rewriteTo() {
return super.rewriteTo();
}
/** @apilevel internal */
public boolean canRewrite() {
return false;
}
}