mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Parser tree nodes of Token.CONVERT type are replaced by Token.TONUMBER and additional optimizer nodes to convert to double or object eliminating the need to distinguish them by Node.TYPE_PROPERTY.

This commit is contained in:
igor%mir2.org 2003-08-14 11:21:46 +00:00
Родитель 8b0aa84272
Коммит 13865e4143
6 изменённых файлов: 79 добавлений и 127 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

30
js/rhino/src/org/mozilla/javascript/IRFactory.java
Просмотреть файл

@ -768,7 +768,7 @@ public class IRFactory {
: Token.SUB,
childNode,
rhs,
ScriptRuntime.NumberClass,
true,
nodeOp == Token.POST);
}
@ -813,18 +813,18 @@ public class IRFactory {
public Object createAssignment(int assignOp, Object left, Object right)
{
return createAssignment(assignOp, (Node) left, (Node) right,
null, false);
false, false);
}
private Node createAssignment(int assignOp, Node left, Node right,
Class convert, boolean postfix)
boolean tonumber, boolean postfix)
{
int nodeType = left.getType();
String idString;
Node id = null;
switch (nodeType) {
case Token.NAME:
return createSetName(assignOp, left, right, convert, postfix);
return createSetName(assignOp, left, right, tonumber, postfix);
case Token.GETPROP:
idString = (String) left.getProp(Node.SPECIAL_PROP_PROP);
@ -835,7 +835,7 @@ public class IRFactory {
if (id == null)
id = left.getLastChild();
return createSetProp(nodeType, assignOp, left.getFirstChild(),
id, right, convert, postfix);
id, right, tonumber, postfix);
default:
// TODO: This should be a ReferenceError--but that's a runtime
// exception. Should we compile an exception into the code?
@ -844,16 +844,12 @@ public class IRFactory {
}
}
private Node createConvert(Class toType, Node expr) {
if (toType == null)
return expr;
Node result = new Node(Token.CONVERT, expr);
result.putProp(Node.TYPE_PROP, ScriptRuntime.NumberClass);
return result;
private Node createToNumber(Node expr) {
return new Node(Token.TONUMBER, expr);
}
private Node createSetName(int assignOp, Node left, Node right,
Class convert, boolean postfix)
boolean tonumber, boolean postfix)
{
if (assignOp == Token.NOP) {
left.setType(Token.BINDNAME);
@ -869,8 +865,8 @@ public class IRFactory {
}
Node opLeft = Node.newString(Token.NAME, s);
if (convert != null)
opLeft = createConvert(convert, opLeft);
if (tonumber)
opLeft = createToNumber(opLeft);
if (postfix)
opLeft = createNewTemp(opLeft);
Node op = new Node(assignOp, opLeft, right);
@ -948,7 +944,7 @@ public class IRFactory {
}
private Node createSetProp(int nodeType, int assignOp, Node obj, Node id,
Node expr, Class convert, boolean postfix)
Node expr, boolean tonumber, boolean postfix)
{
int type = nodeType == Token.GETPROP
? Token.SETPROP
@ -993,8 +989,8 @@ public class IRFactory {
opLeft = new Node(nodeType, obj, id);
}
if (convert != null)
opLeft = createConvert(convert, opLeft);
if (tonumber)
opLeft = createToNumber(opLeft);
if (postfix)
opLeft = createNewTemp(opLeft);
Node op = new Node(assignOp, opLeft, expr);

10
js/rhino/src/org/mozilla/javascript/Interpreter.java
Просмотреть файл

@ -600,16 +600,10 @@ public class Interpreter
itsStackDepth--;
break;
case Token.CONVERT : {
case Token.TONUMBER:
iCodeTop = generateICode(child, iCodeTop);
Object toType = node.getProp(Node.TYPE_PROP);
if (toType == ScriptRuntime.NumberClass) {
iCodeTop = addToken(Token.POS, iCodeTop);
} else {
badTree(node);
}
iCodeTop = addToken(Token.POS, iCodeTop);
break;
}
case Token.UNARYOP :
iCodeTop = generateICode(child, iCodeTop);

20
js/rhino/src/org/mozilla/javascript/Node.java
Просмотреть файл

@ -291,10 +291,9 @@ public class Node implements Cloneable {
CASES_PROP = 12,
DEFAULT_PROP = 13,
CASEARRAY_PROP = 14,
TYPE_PROP = 15,
SPECIAL_PROP_PROP = 16,
LABEL_PROP = 17,
FINALLY_PROP = 18,
SPECIAL_PROP_PROP = 15,
LABEL_PROP = 16,
FINALLY_PROP = 17,
/*
the following properties are defined and manipulated by the
optimizer -
@ -309,13 +308,13 @@ public class Node implements Cloneable {
matches.
*/
TARGETBLOCK_PROP = 19,
VARIABLE_PROP = 20,
LASTUSE_PROP = 21,
ISNUMBER_PROP = 22,
DIRECTCALL_PROP = 23,
TARGETBLOCK_PROP = 18,
VARIABLE_PROP = 19,
LASTUSE_PROP = 20,
ISNUMBER_PROP = 21,
DIRECTCALL_PROP = 22,
SPECIALCALL_PROP = 24;
SPECIALCALL_PROP = 23;
public static final int // this value of the ISNUMBER_PROP specifies
BOTH = 0, // which of the children are Number types
@ -346,7 +345,6 @@ public class Node implements Cloneable {
case CASES_PROP: return "cases";
case DEFAULT_PROP: return "default";
case CASEARRAY_PROP: return "casearray";
case TYPE_PROP: return "type";
case SPECIAL_PROP_PROP: return "special_prop";
case LABEL_PROP: return "label";
case FINALLY_PROP: return "finally";

6
js/rhino/src/org/mozilla/javascript/Token.java
Просмотреть файл

@ -215,7 +215,7 @@ public class Token
ENUMDONE = 116,
EXPRSTMT = 117,
PARENT = 118,
CONVERT = 119,
TONUMBER = 119,
JSR = 120,
NEWLOCAL = 121,
USELOCAL = 122,
@ -347,7 +347,7 @@ public class Token
case ENUMDONE: return "enumdone";
case EXPRSTMT: return "exprstmt";
case PARENT: return "parent";
case CONVERT: return "convert";
case TONUMBER: return "tonumber";
case JSR: return "jsr";
case NEWLOCAL: return "newlocal";
case USELOCAL: return "uselocal";
@ -355,6 +355,6 @@ public class Token
}
return "<unknown="+token+">";
}
return "";
return null;
}
}

73
js/rhino/src/org/mozilla/javascript/optimizer/Codegen.java
Просмотреть файл

@ -1258,41 +1258,38 @@ public class Codegen extends Interpreter {
visitBitOp(node, type, child);
break;
case Token.CONVERT: {
Object toType = node.getProp(Node.TYPE_PROP);
if (toType == ScriptRuntime.NumberClass) {
addByteCode(ByteCode.NEW, "java/lang/Double");
addByteCode(ByteCode.DUP);
generateCodeFromNode(child, node);
addScriptRuntimeInvoke("toNumber",
"(Ljava/lang/Object;)D");
addDoubleConstructor();
} else if (toType == ScriptRuntime.DoubleClass) {
// cnvt to double (not Double)
generateCodeFromNode(child, node);
addScriptRuntimeInvoke("toNumber",
"(Ljava/lang/Object;)D");
} else if (toType == ScriptRuntime.ObjectClass) {
// convert from double
int prop = -1;
if (child.getType() == Token.NUMBER) {
prop = child.getIntProp(Node.ISNUMBER_PROP, -1);
}
if (prop != -1) {
child.removeProp(Node.ISNUMBER_PROP);
generateCodeFromNode(child, node);
child.putIntProp(Node.ISNUMBER_PROP, prop);
} else {
addByteCode(ByteCode.NEW, "java/lang/Double");
addByteCode(ByteCode.DUP);
generateCodeFromNode(child, node);
addDoubleConstructor();
}
} else {
badTree();
}
case Token.TONUMBER:
addByteCode(ByteCode.NEW, "java/lang/Double");
addByteCode(ByteCode.DUP);
generateCodeFromNode(child, node);
addScriptRuntimeInvoke("toNumber", "(Ljava/lang/Object;)D");
addDoubleConstructor();
break;
case Optimizer.TO_DOUBLE:
// cnvt to double (not Double)
generateCodeFromNode(child, node);
addScriptRuntimeInvoke("toNumber", "(Ljava/lang/Object;)D");
break;
case Optimizer.TO_OBJECT: {
// convert from double
int prop = -1;
if (child.getType() == Token.NUMBER) {
prop = child.getIntProp(Node.ISNUMBER_PROP, -1);
}
if (prop != -1) {
child.removeProp(Node.ISNUMBER_PROP);
generateCodeFromNode(child, node);
child.putIntProp(Node.ISNUMBER_PROP, prop);
} else {
addByteCode(ByteCode.NEW, "java/lang/Double");
addByteCode(ByteCode.DUP);
generateCodeFromNode(child, node);
addDoubleConstructor();
}
break;
}
case Token.RELOP:
// need a result Object
@ -2784,12 +2781,10 @@ public class Codegen extends Interpreter {
private Node getConvertToObjectOfNumberNode(Node node)
{
if (node.getType() == Token.CONVERT) {
Object toType = node.getProp(Node.TYPE_PROP);
if (toType == ScriptRuntime.ObjectClass) {
Node convertChild = node.getFirstChild();
if (convertChild.getType() == Token.NUMBER)
return convertChild;
if (node.getType() == Optimizer.TO_OBJECT) {
Node convertChild = node.getFirstChild();
if (convertChild.getType() == Token.NUMBER) {
return convertChild;
}
}
return null;

67
js/rhino/src/org/mozilla/javascript/optimizer/Optimizer.java
Просмотреть файл

@ -47,12 +47,16 @@ import java.io.IOException;
import java.util.Hashtable;
class Optimizer {
class Optimizer
{
static final int NoType = 0;
static final int NumberType = 1;
static final int AnyType = 3;
static final int TO_OBJECT = Token.LAST_TOKEN + 1;
static final int TO_DOUBLE = Token.LAST_TOKEN + 2;
// It is assumed that (NumberType | AnyType) == AnyType
Optimizer(IRFactory irFactory) {
@ -426,11 +430,7 @@ class Optimizer {
if ((theVar != null) && theVar.isNumber()) {
if (rType != NumberType) {
n.removeChild(rChild);
Node newRChild = new Node(Token.CONVERT,
rChild);
newRChild.putProp(Node.TYPE_PROP,
ScriptRuntime.DoubleClass);
n.addChildToBack(newRChild);
n.addChildToBack(new Node(TO_DOUBLE, rChild));
}
n.putIntProp(Node.ISNUMBER_PROP, Node.BOTH);
markDCPNumberContext(rChild);
@ -440,10 +440,8 @@ class Optimizer {
if (rType == NumberType) {
if (!convertParameter(rChild)) {
n.removeChild(rChild);
Node newRChild = new Node(Token.CONVERT, rChild);
newRChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToBack(newRChild);
n.addChildToBack(new Node(TO_OBJECT,
rChild));
}
}
return NoType;
@ -463,19 +461,13 @@ class Optimizer {
if (lType == NumberType) {
if (!convertParameter(lChild)) {
n.removeChild(lChild);
Node nuChild = new Node(Token.CONVERT, lChild);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToFront(nuChild);
n.addChildToFront(new Node(TO_OBJECT, lChild));
}
}
if (rType == NumberType) {
if (!convertParameter(rChild)) {
n.removeChild(rChild);
Node nuChild = new Node(Token.CONVERT, rChild);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToBack(nuChild);
n.addChildToBack(new Node(TO_OBJECT, rChild));
}
}
}
@ -589,10 +581,7 @@ class Optimizer {
else {
if (!convertParameter(rChild)) {
n.removeChild(rChild);
Node newRChild = new Node(Token.CONVERT, rChild);
newRChild.putProp(Node.TYPE_PROP,
ScriptRuntime.DoubleClass);
n.addChildToBack(newRChild);
n.addChildToBack(new Node(TO_DOUBLE, rChild));
n.putIntProp(Node.ISNUMBER_PROP, Node.BOTH);
}
return NumberType;
@ -602,10 +591,7 @@ class Optimizer {
if (rType == NumberType) {
if (!convertParameter(lChild)) {
n.removeChild(lChild);
Node newLChild = new Node(Token.CONVERT, lChild);
newLChild.putProp(Node.TYPE_PROP,
ScriptRuntime.DoubleClass);
n.addChildToFront(newLChild);
n.addChildToFront(new Node(TO_DOUBLE, lChild));
n.putIntProp(Node.ISNUMBER_PROP, Node.BOTH);
}
return NumberType;
@ -613,17 +599,11 @@ class Optimizer {
else {
if (!convertParameter(lChild)) {
n.removeChild(lChild);
Node newLChild = new Node(Token.CONVERT, lChild);
newLChild.putProp(Node.TYPE_PROP,
ScriptRuntime.DoubleClass);
n.addChildToFront(newLChild);
n.addChildToFront(new Node(TO_DOUBLE, lChild));
}
if (!convertParameter(rChild)) {
n.removeChild(rChild);
Node newRChild = new Node(Token.CONVERT, rChild);
newRChild.putProp(Node.TYPE_PROP,
ScriptRuntime.DoubleClass);
n.addChildToBack(newRChild);
n.addChildToBack(new Node(TO_DOUBLE, rChild));
}
n.putIntProp(Node.ISNUMBER_PROP, Node.BOTH);
return NumberType;
@ -638,10 +618,7 @@ class Optimizer {
if (baseType == NumberType) {// can never happen ???
if (!convertParameter(arrayBase)) {
n.removeChild(arrayBase);
Node nuChild = new Node(Token.CONVERT, arrayBase);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToFront(nuChild);
n.addChildToFront(new Node(TO_OBJECT, arrayBase));
}
}
int indexType = rewriteForNumberVariables(arrayIndex);
@ -656,10 +633,7 @@ class Optimizer {
if (rValueType == NumberType) {
if (!convertParameter(rValue)) {
n.removeChild(rValue);
Node nuChild = new Node(Token.CONVERT, rValue);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToBack(nuChild);
n.addChildToBack(new Node(TO_OBJECT, rValue));
}
}
return NoType;
@ -671,10 +645,7 @@ class Optimizer {
if (baseType == NumberType) {// can never happen ???
if (!convertParameter(arrayBase)) {
n.removeChild(arrayBase);
Node nuChild = new Node(Token.CONVERT, arrayBase);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
n.addChildToFront(nuChild);
n.addChildToFront(new Node(TO_OBJECT, arrayBase));
}
}
int indexType = rewriteForNumberVariables(arrayIndex);
@ -721,9 +692,7 @@ class Optimizer {
if (type == NumberType) {
if (!convertParameter(child)) {
n.removeChild(child);
Node nuChild = new Node(Token.CONVERT, child);
nuChild.putProp(Node.TYPE_PROP,
ScriptRuntime.ObjectClass);
Node nuChild = new Node(TO_OBJECT, child);
if (nextChild == null)
n.addChildToBack(nuChild);
else