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提交 e82d0319 编写于 作者: H hannesw
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8062141: Various performance issues parsing JSON 

Reviewed-by: lagergren, attila
上级 f6bb0307
隐藏空白更改
内联 并排
Showing with 940 addition and 403 deletion
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/Global.java
浏览文件 @ e82d0319
...@@ -580,13 +580,15 @@ public final class Global extends ScriptObject implements Scope { ...@@ -580,13 +580,15 @@ public final class Global extends ScriptObject implements Scope {
} else if (obj instanceof String || obj instanceof ConsString) { } else if (obj instanceof String || obj instanceof ConsString) {
return new NativeString((CharSequence)obj, this); return new NativeString((CharSequence)obj, this);
} else if (obj instanceof Object[]) { // extension } else if (obj instanceof Object[]) { // extension
return new NativeArray((Object[])obj); return new NativeArray(ArrayData.allocate((Object[])obj), this);
} else if (obj instanceof double[]) { // extension } else if (obj instanceof double[]) { // extension
return new NativeArray((double[])obj); return new NativeArray(ArrayData.allocate((double[])obj), this);
} else if (obj instanceof long[]) { } else if (obj instanceof long[]) {
return new NativeArray((long[])obj); return new NativeArray(ArrayData.allocate((long[])obj), this);
} else if (obj instanceof int[]) { } else if (obj instanceof int[]) {
return new NativeArray((int[])obj); return new NativeArray(ArrayData.allocate((int[]) obj), this);
} else if (obj instanceof ArrayData) {
return new NativeArray((ArrayData) obj, this);
} else { } else {
// FIXME: more special cases? Map? List? // FIXME: more special cases? Map? List?
return obj; return obj;
...@@ -1028,14 +1030,19 @@ public final class Global extends ScriptObject implements Scope { ...@@ -1028,14 +1030,19 @@ public final class Global extends ScriptObject implements Scope {
} }
// builtin prototype accessors // builtin prototype accessors
ScriptObject getFunctionPrototype() {
return ScriptFunction.getPrototype(builtinFunction);
}
ScriptObject getObjectPrototype() { /**
* Get the builtin Object prototype.
* @return the object prototype.
*/
public ScriptObject getObjectPrototype() {
return ScriptFunction.getPrototype(builtinObject); return ScriptFunction.getPrototype(builtinObject);
} }
ScriptObject getFunctionPrototype() {
return ScriptFunction.getPrototype(builtinFunction);
}
ScriptObject getArrayPrototype() { ScriptObject getArrayPrototype() {
return ScriptFunction.getPrototype(builtinArray); return ScriptFunction.getPrototype(builtinArray);
} }
......
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/parser/JSONParser.java
浏览文件 @ e82d0319
/* /*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
...@@ -25,38 +25,59 @@ ...@@ -25,38 +25,59 @@
package jdk.nashorn.internal.parser; package jdk.nashorn.internal.parser;
import static jdk.nashorn.internal.parser.TokenType.COLON;
import static jdk.nashorn.internal.parser.TokenType.COMMARIGHT;
import static jdk.nashorn.internal.parser.TokenType.EOF;
import static jdk.nashorn.internal.parser.TokenType.ESCSTRING;
import static jdk.nashorn.internal.parser.TokenType.RBRACE;
import static jdk.nashorn.internal.parser.TokenType.RBRACKET;
import static jdk.nashorn.internal.parser.TokenType.STRING;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.List; import java.util.List;
import jdk.nashorn.internal.ir.Expression; import jdk.nashorn.internal.codegen.ObjectClassGenerator;
import jdk.nashorn.internal.ir.LiteralNode; import jdk.nashorn.internal.objects.Global;
import jdk.nashorn.internal.ir.Node; import jdk.nashorn.internal.runtime.ECMAErrors;
import jdk.nashorn.internal.ir.ObjectNode;
import jdk.nashorn.internal.ir.PropertyNode;
import jdk.nashorn.internal.ir.UnaryNode;
import jdk.nashorn.internal.runtime.ErrorManager; import jdk.nashorn.internal.runtime.ErrorManager;
import jdk.nashorn.internal.runtime.JSErrorType;
import jdk.nashorn.internal.runtime.JSType;
import jdk.nashorn.internal.runtime.ParserException;
import jdk.nashorn.internal.runtime.Property;
import jdk.nashorn.internal.runtime.PropertyMap;
import jdk.nashorn.internal.runtime.ScriptObject;
import jdk.nashorn.internal.runtime.Source; import jdk.nashorn.internal.runtime.Source;
import jdk.nashorn.internal.runtime.SpillProperty;
import jdk.nashorn.internal.runtime.arrays.ArrayData;
import jdk.nashorn.internal.runtime.arrays.ArrayIndex;
import jdk.nashorn.internal.scripts.JO;
import static jdk.nashorn.internal.parser.TokenType.STRING;
/** /**
* Parses JSON text and returns the corresponding IR node. This is derived from the objectLiteral production of the main parser. * Parses JSON text and returns the corresponding IR node. This is derived from the objectLiteral production of the main parser.
* *
* See: 15.12.1.2 The JSON Syntactic Grammar * See: 15.12.1.2 The JSON Syntactic Grammar
*/ */
public class JSONParser extends AbstractParser { public class JSONParser {
final private String source;
final private Global global;
final int length;
int pos = 0;
private static PropertyMap EMPTY_MAP = PropertyMap.newMap();
private static final int EOF = -1;
private static final String TRUE = "true";
private static final String FALSE = "false";
private static final String NULL = "null";
private static final int STATE_EMPTY = 0;
private static final int STATE_ELEMENT_PARSED = 1;
private static final int STATE_COMMA_PARSED = 2;
/** /**
* Constructor * Constructor
* @param source the source * @param source the source
* @param errors the error manager * @param global the global object
*/ */
public JSONParser(final Source source, final ErrorManager errors) { public JSONParser(final String source, final Global global ) {
super(source, errors, false, 0); this.source = source;
this.global = global;
this.length = source.length();
} }
/** /**
...@@ -114,329 +135,408 @@ public class JSONParser extends AbstractParser { ...@@ -114,329 +135,408 @@ public class JSONParser extends AbstractParser {
} }
/** /**
* Public parsed method - start lexing a new token stream for * Public parse method. Parse a string into a JSON object.
* a JSON script
* *
* @return the JSON literal * @return the parsed JSON Object
*/ */
public Node parse() { public Object parse() {
stream = new TokenStream(); final Object value = parseLiteral();
skipWhiteSpace();
if (pos < length) {
throw expectedError(pos, "eof", toString(peek()));
}
return value;
}
lexer = new Lexer(source, stream) { private Object parseLiteral() {
skipWhiteSpace();
@Override final int c = peek();
protected boolean skipComments() { if (c == EOF) {
return false; throw expectedError(pos, "json literal", "eof");
}
switch (c) {
case '{':
return parseObject();
case '[':
return parseArray();
case '"':
return parseString();
case 'f':
return parseKeyword(FALSE, Boolean.FALSE);
case 't':
return parseKeyword(TRUE, Boolean.TRUE);
case 'n':
return parseKeyword(NULL, null);
default:
if (isDigit(c) || c == '-') {
return parseNumber();
} else if (c == '.') {
throw numberError(pos);
} else {
throw expectedError(pos, "json literal", toString(c));
} }
}
}
@Override private Object parseObject() {
protected boolean isStringDelimiter(final char ch) { PropertyMap propertyMap = EMPTY_MAP;
return ch == '\"'; ArrayData arrayData = ArrayData.EMPTY_ARRAY;
} final ArrayList<Object> values = new ArrayList<>();
int state = STATE_EMPTY;
// ECMA 15.12.1.1 The JSON Lexical Grammar - JSONWhiteSpace assert peek() == '{';
@Override pos++;
protected boolean isWhitespace(final char ch) {
return Lexer.isJsonWhitespace(ch);
}
@Override while (pos < length) {
protected boolean isEOL(final char ch) { skipWhiteSpace();
return Lexer.isJsonEOL(ch); final int c = peek();
}
// ECMA 15.12.1.1 The JSON Lexical Grammar - JSONNumber switch (c) {
@Override case '"':
protected void scanNumber() { if (state == STATE_ELEMENT_PARSED) {
// Record beginning of number. throw expectedError(pos - 1, ", or }", toString(c));
final int startPosition = position; }
// Assume value is a decimal. final String id = parseString();
TokenType valueType = TokenType.DECIMAL; expectColon();
final Object value = parseLiteral();
// floating point can't start with a "." with no leading digit before final int index = ArrayIndex.getArrayIndex(id);
if (ch0 == '.') { if (ArrayIndex.isValidArrayIndex(index)) {
error(Lexer.message("json.invalid.number"), STRING, position, limit); arrayData = addArrayElement(arrayData, index, value);
} else {
propertyMap = addObjectProperty(propertyMap, values, id, value);
}
state = STATE_ELEMENT_PARSED;
break;
case ',':
if (state != STATE_ELEMENT_PARSED) {
throw error(AbstractParser.message("trailing.comma.in.json"), pos);
} }
state = STATE_COMMA_PARSED;
pos++;
break;
case '}':
if (state == STATE_COMMA_PARSED) {
throw error(AbstractParser.message("trailing.comma.in.json"), pos);
}
pos++;
return createObject(propertyMap, values, arrayData);
default:
throw expectedError(pos, ", or }", toString(c));
}
}
throw expectedError(pos, ", or }", "eof");
}
// First digit of number. private static ArrayData addArrayElement(final ArrayData arrayData, final int index, final Object value) {
final int digit = convertDigit(ch0, 10); final long oldLength = arrayData.length();
final long longIndex = ArrayIndex.toLongIndex(index);
ArrayData newArrayData = arrayData;
if (longIndex > oldLength) {
if (arrayData.canDelete(oldLength, longIndex - 1, false)) {
newArrayData = newArrayData.delete(oldLength, longIndex - 1);
}
}
return newArrayData.ensure(longIndex).set(index, value, false);
}
// skip first digit private static PropertyMap addObjectProperty(final PropertyMap propertyMap, final List<Object> values,
skip(1); final String id, final Object value) {
final Property oldProperty = propertyMap.findProperty(id);
final Property newProperty;
final PropertyMap newMap;
final Class<?> type = ObjectClassGenerator.OBJECT_FIELDS_ONLY ? Object.class : getType(value);
if (oldProperty != null) {
values.set(oldProperty.getSlot(), value);
newProperty = new SpillProperty(id, 0, oldProperty.getSlot());
newProperty.setType(type);
newMap = propertyMap.replaceProperty(oldProperty, newProperty);;
} else {
values.add(value);
newProperty = new SpillProperty(id, 0, propertyMap.size());
newProperty.setType(type);
newMap = propertyMap.addProperty(newProperty);
}
if (digit != 0) { return newMap;
// Skip over remaining digits. }
while (convertDigit(ch0, 10) != -1) {
skip(1);
}
}
if (ch0 == '.' || ch0 == 'E' || ch0 == 'e') { private Object createObject(final PropertyMap propertyMap, final List<Object> values, final ArrayData arrayData) {
// Must be a double. final long[] primitiveSpill = new long[values.size()];
if (ch0 == '.') { final Object[] objectSpill = new Object[values.size()];
// Skip period.
skip(1);
boolean mantissa = false;
// Skip mantissa.
while (convertDigit(ch0, 10) != -1) {
mantissa = true;
skip(1);
}
if (! mantissa) {
// no digit after "."
error(Lexer.message("json.invalid.number"), STRING, position, limit);
}
}
// Detect exponent.
if (ch0 == 'E' || ch0 == 'e') {
// Skip E.
skip(1);
// Detect and skip exponent sign.
if (ch0 == '+' || ch0 == '-') {
skip(1);
}
boolean exponent = false;
// Skip exponent.
while (convertDigit(ch0, 10) != -1) {
exponent = true;
skip(1);
}
if (! exponent) {
// no digit after "E"
error(Lexer.message("json.invalid.number"), STRING, position, limit);
}
}
valueType = TokenType.FLOATING;
}
// Add number token. for (final Property property : propertyMap.getProperties()) {
add(valueType, startPosition); if (property.getType() == Object.class) {
objectSpill[property.getSlot()] = values.get(property.getSlot());
} else {
primitiveSpill[property.getSlot()] = ObjectClassGenerator.pack((Number) values.get(property.getSlot()));
} }
}
// ECMA 15.12.1.1 The JSON Lexical Grammar - JSONEscapeCharacter final ScriptObject object = new JO(propertyMap, primitiveSpill, objectSpill);
@Override object.setInitialProto(global.getObjectPrototype());
protected boolean isEscapeCharacter(final char ch) { object.setArray(arrayData);
switch (ch) { return object;
case '"': }
case '/':
case '\\':
case 'b':
case 'f':
case 'n':
case 'r':
case 't':
// could be unicode escape
case 'u':
return true;
default:
return false;
}
}
};
k = -1; private static Class<?> getType(final Object value) {
if (value instanceof Integer) {
return int.class;
} else if (value instanceof Long) {
return long.class;
} else if (value instanceof Double) {
return double.class;
} else {
return Object.class;
}
}
next(); private void expectColon() {
skipWhiteSpace();
final int n = next();
if (n != ':') {
throw expectedError(pos - 1, ":", toString(n));
}
}
final Node resultNode = jsonLiteral(); private Object parseArray() {
expect(EOF); ArrayData arrayData = ArrayData.EMPTY_ARRAY;
int state = STATE_EMPTY;
return resultNode; assert peek() == '[';
} pos++;
@SuppressWarnings("fallthrough") while (pos < length) {
private LiteralNode<?> getStringLiteral() { skipWhiteSpace();
final LiteralNode<?> literal = getLiteral(); final int c = peek();
final String str = (String)literal.getValue();
for (int i = 0; i < str.length(); i++) { switch (c) {
final char ch = str.charAt(i); case ',':
switch (ch) { if (state != STATE_ELEMENT_PARSED) {
throw error(AbstractParser.message("trailing.comma.in.json"), pos);
}
state = STATE_COMMA_PARSED;
pos++;
break;
case ']':
if (state == STATE_COMMA_PARSED) {
throw error(AbstractParser.message("trailing.comma.in.json"), pos);
}
pos++;
return global.wrapAsObject(arrayData);
default: default:
if (ch > 0x001f) { if (state == STATE_ELEMENT_PARSED) {
break; throw expectedError(pos, ", or ]", toString(c));
} }
case '"': final long index = arrayData.length();
case '\\': arrayData = arrayData.ensure(index).set((int) index, parseLiteral(), true);
throw error(AbstractParser.message("unexpected.token", str)); state = STATE_ELEMENT_PARSED;
break;
} }
} }
return literal; throw expectedError(pos, ", or ]", "eof");
} }
/** private String parseString() {
* Parse a JSON literal from the token stream // String buffer is only instantiated if string contains escape sequences.
* @return the JSON literal as a Node int start = ++pos;
*/ StringBuilder sb = null;
private Expression jsonLiteral() {
final long literalToken = token; while (pos < length) {
final int c = next();
switch (type) { if (c <= 0x1f) {
case STRING: // Characters < 0x1f are not allowed in JSON strings.
return getStringLiteral(); throw syntaxError(pos, "String contains control character");
case ESCSTRING:
case DECIMAL: } else if (c == '\\') {
case FLOATING: if (sb == null) {
return getLiteral(); sb = new StringBuilder(pos - start + 16);
case FALSE: }
next(); sb.append(source, start, pos - 1);
return LiteralNode.newInstance(literalToken, finish, false); sb.append(parseEscapeSequence());
case TRUE: start = pos;
next();
return LiteralNode.newInstance(literalToken, finish, true); } else if (c == '"') {
case NULL: if (sb != null) {
next(); sb.append(source, start, pos - 1);
return LiteralNode.newInstance(literalToken, finish); return sb.toString();
case LBRACKET: }
return arrayLiteral(); return source.substring(start, pos - 1);
case LBRACE:
return objectLiteral();
/*
* A.8.1 JSON Lexical Grammar
*
* JSONNumber :: See 15.12.1.1
* -opt DecimalIntegerLiteral JSONFractionopt ExponentPartopt
*/
case SUB:
next();
final long realToken = token;
final Object value = getValue();
if (value instanceof Number) {
next();
return new UnaryNode(literalToken, LiteralNode.newInstance(realToken, finish, (Number)value));
} }
}
throw error(Lexer.message("missing.close.quote"), pos, length);
}
throw error(AbstractParser.message("expected", "number", type.getNameOrType())); private char parseEscapeSequence() {
final int c = next();
switch (c) {
case '"':
return '"';
case '\\':
return '\\';
case '/':
return '/';
case 'b':
return '\b';
case 'f':
return '\f';
case 'n':
return '\n';
case 'r':
return '\r';
case 't':
return '\t';
case 'u':
return parseUnicodeEscape();
default: default:
break; throw error(Lexer.message("invalid.escape.char"), pos - 1, length);
} }
}
throw error(AbstractParser.message("expected", "json literal", type.getNameOrType())); private char parseUnicodeEscape() {
return (char) (parseHexDigit() << 12 | parseHexDigit() << 8 | parseHexDigit() << 4 | parseHexDigit());
} }
/** private int parseHexDigit() {
* Parse an array literal from the token stream final int c = next();
* @return the array literal as a Node if (c >= '0' && c <= '9') {
*/ return c - '0';
private LiteralNode<Expression[]> arrayLiteral() { } else if (c >= 'A' && c <= 'F') {
// Unlike JavaScript array literals, elison is not permitted in JSON. return c + 10 - 'A';
} else if (c >= 'a' && c <= 'f') {
// Capture LBRACKET token. return c + 10 - 'a';
final long arrayToken = token; }
// LBRACKET tested in caller. throw error(Lexer.message("invalid.hex"), pos - 1, length);
next(); }
LiteralNode<Expression[]> result = null;
// Prepare to accummulating elements.
final List<Expression> elements = new ArrayList<>();
loop:
while (true) {
switch (type) {
case RBRACKET:
next();
result = LiteralNode.newInstance(arrayToken, finish, elements);
break loop;
case COMMARIGHT:
next();
// check for trailing comma - not allowed in JSON
if (type == RBRACKET) {
throw error(AbstractParser.message("trailing.comma.in.json", type.getNameOrType()));
}
break;
default: private boolean isDigit(final int c) {
// Add expression element. return c >= '0' && c <= '9';
elements.add(jsonLiteral()); }
// Comma between array elements is mandatory in JSON.
if (type != COMMARIGHT && type != RBRACKET) { private void skipDigits() {
throw error(AbstractParser.message("expected", ", or ]", type.getNameOrType())); while (pos < length) {
} final int c = peek();
if (!isDigit(c)) {
break; break;
} }
pos++;
} }
return result;
} }
/** private Number parseNumber() {
* Parse an object literal from the token stream final int start = pos;
* @return the object literal as a Node int c = next();
*/
private ObjectNode objectLiteral() {
// Capture LBRACE token.
final long objectToken = token;
// LBRACE tested in caller.
next();
// Prepare to accumulate elements.
final List<PropertyNode> elements = new ArrayList<>();
// Create a block for the object literal.
loop:
while (true) {
switch (type) {
case RBRACE:
next();
break loop;
case COMMARIGHT:
next();
// check for trailing comma - not allowed in JSON
if (type == RBRACE) {
throw error(AbstractParser.message("trailing.comma.in.json", type.getNameOrType()));
}
break;
default: if (c == '-') {
// Get and add the next property. c = next();
final PropertyNode property = propertyAssignment(); }
elements.add(property); if (!isDigit(c)) {
throw numberError(start);
}
// no more digits allowed after 0
if (c != '0') {
skipDigits();
}
// Comma between property assigments is mandatory in JSON. // fraction
if (type != RBRACE && type != COMMARIGHT) { if (peek() == '.') {
throw error(AbstractParser.message("expected", ", or }", type.getNameOrType())); pos++;
} if (!isDigit(next())) {
break; throw numberError(pos - 1);
} }
skipDigits();
} }
// Construct new object literal. // exponent
return new ObjectNode(objectToken, finish, elements); c = peek();
if (c == 'e' || c == 'E') {
pos++;
c = next();
if (c == '-' || c == '+') {
c = next();
}
if (!isDigit(c)) {
throw numberError(pos - 1);
}
skipDigits();
}
final double d = Double.parseDouble(source.substring(start, pos));
if (JSType.isRepresentableAsInt(d)) {
return (int) d;
} else if (JSType.isRepresentableAsLong(d)) {
return (long) d;
}
return d;
} }
/** private Object parseKeyword(final String keyword, final Object value) {
* Parse a property assignment from the token stream if (!source.regionMatches(pos, keyword, 0, keyword.length())) {
* @return the property assignment as a Node throw expectedError(pos, "json literal", "ident");
*/
private PropertyNode propertyAssignment() {
// Capture firstToken.
final long propertyToken = token;
LiteralNode<?> name = null;
if (type == STRING) {
name = getStringLiteral();
} else if (type == ESCSTRING) {
name = getLiteral();
} }
pos += keyword.length();
return value;
}
if (name != null) { private int peek() {
expect(COLON); if (pos >= length) {
final Expression value = jsonLiteral(); return -1;
return new PropertyNode(propertyToken, value.getFinish(), name, value, null, null);
} }
return source.charAt(pos);
}
// Raise an error. private int next() {
throw error(AbstractParser.message("expected", "string", type.getNameOrType())); final int next = peek();
pos++;
return next;
} }
private void skipWhiteSpace() {
while (pos < length) {
switch (peek()) {
case '\t':
case '\r':
case '\n':
case ' ':
pos++;
break;
default:
return;
}
}
}
private static String toString(final int c) {
return c == EOF ? "eof" : String.valueOf((char) c);
}
ParserException error(final String message, final int start, final int length) throws ParserException {
final long token = Token.toDesc(STRING, start, length);
final int pos = Token.descPosition(token);
final Source src = Source.sourceFor("<json>", source);
final int lineNum = src.getLine(pos);
final int columnNum = src.getColumn(pos);
final String formatted = ErrorManager.format(message, src, lineNum, columnNum, token);
return new ParserException(JSErrorType.SYNTAX_ERROR, formatted, src, lineNum, columnNum, token);
}
private ParserException error(final String message, final int start) {
return error(message, start, length);
}
private ParserException numberError(final int start) {
return error(Lexer.message("json.invalid.number"), start);
}
private ParserException expectedError(final int start, final String expected, final String found) {
return error(AbstractParser.message("expected", expected, found), start);
}
private ParserException syntaxError(final int start, final String reason) {
final String message = ECMAErrors.getMessage("syntax.error.invalid.json", reason);
return error(message, start);
}
} }
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/parser/Lexer.java
浏览文件 @ e82d0319
...@@ -93,9 +93,6 @@ public class Lexer extends Scanner { ...@@ -93,9 +93,6 @@ public class Lexer extends Scanner {
private static final String SPACETAB = " \t"; // ASCII space and tab private static final String SPACETAB = " \t"; // ASCII space and tab
private static final String LFCR = "\n\r"; // line feed and carriage return (ctrl-m) private static final String LFCR = "\n\r"; // line feed and carriage return (ctrl-m)
private static final String JSON_WHITESPACE_EOL = LFCR;
private static final String JSON_WHITESPACE = SPACETAB + LFCR;
private static final String JAVASCRIPT_WHITESPACE_EOL = private static final String JAVASCRIPT_WHITESPACE_EOL =
LFCR + LFCR +
"\u2028" + // line separator "\u2028" + // line separator
...@@ -384,24 +381,6 @@ public class Lexer extends Scanner { ...@@ -384,24 +381,6 @@ public class Lexer extends Scanner {
return JAVASCRIPT_WHITESPACE_EOL.indexOf(ch) != -1; return JAVASCRIPT_WHITESPACE_EOL.indexOf(ch) != -1;
} }
/**
* Test whether a char is valid JSON whitespace
* @param ch a char
* @return true if valid JSON whitespace
*/
public static boolean isJsonWhitespace(final char ch) {
return JSON_WHITESPACE.indexOf(ch) != -1;
}
/**
* Test whether a char is valid JSON end of line
* @param ch a char
* @return true if valid JSON end of line
*/
public static boolean isJsonEOL(final char ch) {
return JSON_WHITESPACE_EOL.indexOf(ch) != -1;
}
/** /**
* Test if char is a string delimiter, e.g. '\' or '"'. Also scans exec * Test if char is a string delimiter, e.g. '\' or '"'. Also scans exec
* strings ('`') in scripting mode. * strings ('`') in scripting mode.
......
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/JSONFunctions.java
浏览文件 @ e82d0319
...@@ -25,19 +25,11 @@ ...@@ -25,19 +25,11 @@
package jdk.nashorn.internal.runtime; package jdk.nashorn.internal.runtime;
import static jdk.nashorn.internal.runtime.Source.sourceFor;
import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandle;
import java.util.Iterator; import java.util.Iterator;
import java.util.concurrent.Callable; import java.util.concurrent.Callable;
import jdk.nashorn.internal.ir.LiteralNode;
import jdk.nashorn.internal.ir.Node;
import jdk.nashorn.internal.ir.ObjectNode;
import jdk.nashorn.internal.ir.PropertyNode;
import jdk.nashorn.internal.ir.UnaryNode;
import jdk.nashorn.internal.objects.Global; import jdk.nashorn.internal.objects.Global;
import jdk.nashorn.internal.parser.JSONParser; import jdk.nashorn.internal.parser.JSONParser;
import jdk.nashorn.internal.parser.TokenType;
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; import jdk.nashorn.internal.runtime.arrays.ArrayIndex;
import jdk.nashorn.internal.runtime.linker.Bootstrap; import jdk.nashorn.internal.runtime.linker.Bootstrap;
...@@ -78,20 +70,18 @@ public final class JSONFunctions { ...@@ -78,20 +70,18 @@ public final class JSONFunctions {
* @return Object representation of JSON text given * @return Object representation of JSON text given
*/ */
public static Object parse(final Object text, final Object reviver) { public static Object parse(final Object text, final Object reviver) {
final String str = JSType.toString(text); final String str = JSType.toString(text);
final JSONParser parser = new JSONParser(sourceFor("<json>", str), new Context.ThrowErrorManager()); final Global global = Context.getGlobal();
final JSONParser parser = new JSONParser(str, global);
Node node; final Object value;
try { try {
node = parser.parse(); value = parser.parse();
} catch (final ParserException e) { } catch (final ParserException e) {
throw ECMAErrors.syntaxError(e, "invalid.json", e.getMessage()); throw ECMAErrors.syntaxError(e, "invalid.json", e.getMessage());
} }
final Global global = Context.getGlobal(); return applyReviver(global, value, reviver);
final Object unfiltered = convertNode(global, node);
return applyReviver(global, unfiltered, reviver);
} }
// -- Internals only below this point // -- Internals only below this point
...@@ -137,61 +127,6 @@ public final class JSONFunctions { ...@@ -137,61 +127,6 @@ public final class JSONFunctions {
} }
} }
// Converts IR node to runtime value
private static Object convertNode(final Global global, final Node node) {
if (node instanceof LiteralNode) {
// check for array literal
if (node.tokenType() == TokenType.ARRAY) {
assert node instanceof LiteralNode.ArrayLiteralNode;
final Node[] elements = ((LiteralNode.ArrayLiteralNode)node).getValue();
// NOTE: We cannot use LiteralNode.isNumericArray() here as that
// method uses symbols of element nodes. Since we don't do lower
// pass, there won't be any symbols!
if (isNumericArray(elements)) {
final double[] values = new double[elements.length];
int index = 0;
for (final Node elem : elements) {
values[index++] = JSType.toNumber(convertNode(global, elem));
}
return global.wrapAsObject(values);
}
final Object[] values = new Object[elements.length];
int index = 0;
for (final Node elem : elements) {
values[index++] = convertNode(global, elem);
}
return global.wrapAsObject(values);
}
return ((LiteralNode<?>)node).getValue();
} else if (node instanceof ObjectNode) {
final ObjectNode objNode = (ObjectNode) node;
final ScriptObject object = global.newObject();
for (final PropertyNode pNode: objNode.getElements()) {
final Node valueNode = pNode.getValue();
final String name = pNode.getKeyName();
final Object value = convertNode(global, valueNode);
setPropertyValue(object, name, value);
}
return object;
} else if (node instanceof UnaryNode) {
// UnaryNode used only to represent negative number JSON value
final UnaryNode unaryNode = (UnaryNode)node;
return -((LiteralNode<?>)unaryNode.getExpression()).getNumber();
} else {
return null;
}
}
// add a new property if does not exist already, or else set old property // add a new property if does not exist already, or else set old property
private static void setPropertyValue(final ScriptObject sobj, final String name, final Object value) { private static void setPropertyValue(final ScriptObject sobj, final String name, final Object value) {
final int index = ArrayIndex.getArrayIndex(name); final int index = ArrayIndex.getArrayIndex(name);
...@@ -207,14 +142,4 @@ public final class JSONFunctions { ...@@ -207,14 +142,4 @@ public final class JSONFunctions {
} }
} }
// does the given IR node represent a numeric array?
private static boolean isNumericArray(final Node[] values) {
for (final Node node : values) {
if (node instanceof LiteralNode && ((LiteralNode<?>)node).getValue() instanceof Number) {
continue;
}
return false;
}
return true;
}
} }
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/PropertyMap.java
浏览文件 @ e82d0319
...@@ -486,7 +486,7 @@ public final class PropertyMap implements Iterable<Object>, Serializable { ...@@ -486,7 +486,7 @@ public final class PropertyMap implements Iterable<Object>, Serializable {
* *
* @return New {@link PropertyMap} with {@link Property} replaced. * @return New {@link PropertyMap} with {@link Property} replaced.
*/ */
PropertyMap replaceProperty(final Property oldProperty, final Property newProperty) { public PropertyMap replaceProperty(final Property oldProperty, final Property newProperty) {
if (listeners != null) { if (listeners != null) {
listeners.propertyModified(oldProperty, newProperty); listeners.propertyModified(oldProperty, newProperty);
} }
......
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/scripts/JO.java
浏览文件 @ e82d0319
...@@ -25,7 +25,6 @@ ...@@ -25,7 +25,6 @@
package jdk.nashorn.internal.scripts; package jdk.nashorn.internal.scripts;
import jdk.nashorn.internal.codegen.SpillObjectCreator;
import jdk.nashorn.internal.runtime.PropertyMap; import jdk.nashorn.internal.runtime.PropertyMap;
import jdk.nashorn.internal.runtime.ScriptObject; import jdk.nashorn.internal.runtime.ScriptObject;
...@@ -64,8 +63,9 @@ public class JO extends ScriptObject { ...@@ -64,8 +63,9 @@ public class JO extends ScriptObject {
} }
/** /**
* Constructor that takes a pre-initialized spill pool. Used for * Constructor that takes a pre-initialized spill pool. Used by
* by {@link SpillObjectCreator} for intializing object literals * {@link jdk.nashorn.internal.codegen.SpillObjectCreator} and
* {@link jdk.nashorn.internal.parser.JSONParser} for initializing object literals
* *
* @param map property map * @param map property map
* @param primitiveSpill primitive spill pool * @param primitiveSpill primitive spill pool
......
nashorn/test/examples/json-parser-micro.js 0 → 100644
浏览文件 @ e82d0319
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
function bench() {
var start = Date.now();
for (var i = 0; i < 2000; i++) {
JSON.parse(String(json));
}
print("1000 iterations in", Date.now() - start, "millis");
}
var json = '[\
{\
"_id": "54ca34171d3ade49782294c8",\
"index": 0,\
"guid": "ed0e74d5-ac63-47b6-8938-1750abab5770",\
"isActive": false,\
"balance": "$1,996.19",\
"picture": "http://placehold.it/32x32",\
"age": 39,\
"eyeColor": "green",\
"name": "Rose Graham",\
"gender": "male",\
"company": "PRIMORDIA",\
"email": "rosegraham@primordia.com",\
"phone": "+1 (985) 600-3551",\
"address": "364 Melba Court, Succasunna, Texas, 8393",\
"about": "Sunt commodo cillum occaecat velit eu eiusmod ex eiusmod sunt deserunt nulla proident incididunt. Incididunt ullamco Lorem elit do culpa esse do ex dolor aliquip labore. Ullamco velit laboris incididunt dolor. Nostrud dolor sint pariatur fugiat ullamco exercitation. Eu laboris do cupidatat eiusmod incididunt mollit occaecat voluptate.",\
"registered": "2014-03-13T12:05:14 -01:00",\
"latitude": 18.55665,\
"longitude": 81.641001,\
"tags": [\
"sint",\
"Lorem",\
"veniam",\
"quis",\
"proident",\
"consectetur",\
"consequat"\
],\
"friends": [\
{\
"id": 0,\
"name": "Evangelina Morgan"\
},\
{\
"id": 1,\
"name": "Saunders Snyder"\
},\
{\
"id": 2,\
"name": "Walker Wood"\
}\
],\
"greeting": "Hello, Rose Graham! You have 1 unread messages.",\
"favoriteFruit": "strawberry"\
},\
{\
"_id": "54ca34176790c4c60fcae085",\
"index": 1,\
"guid": "9dc42e4c-b58f-4d92-a2ee-968d2b627d92",\
"isActive": true,\
"balance": "$3,832.97",\
"picture": "http://placehold.it/32x32",\
"age": 40,\
"eyeColor": "brown",\
"name": "Delaney Cherry",\
"gender": "male",\
"company": "INJOY",\
"email": "delaneycherry@injoy.com",\
"phone": "+1 (807) 463-2295",\
"address": "470 Hale Avenue, Mulberry, District Of Columbia, 5455",\
"about": "Deserunt sit cupidatat elit Lorem excepteur ex. Magna officia minim cupidatat nulla enim deserunt. Amet ex in tempor commodo consequat non ad qui elit cupidatat esse labore sint.",\
"registered": "2014-03-27T23:06:33 -01:00",\
"latitude": -4.984238,\
"longitude": 116.039285,\
"tags": [\
"minim",\
"velit",\
"aute",\
"minim",\
"id",\
"enim",\
"enim"\
],\
"friends": [\
{\
"id": 0,\
"name": "Barrera Flowers"\
},\
{\
"id": 1,\
"name": "Leann Larson"\
},\
{\
"id": 2,\
"name": "Latoya Petty"\
}\
],\
"greeting": "Hello, Delaney Cherry! You have 2 unread messages.",\
"favoriteFruit": "strawberry"\
},\
{\
"_id": "54ca3417920666f00c54bfc4",\
"index": 2,\
"guid": "f91e08f8-1598-49bc-a08b-bb48f0cc1751",\
"isActive": true,\
"balance": "$2,932.84",\
"picture": "http://placehold.it/32x32",\
"age": 28,\
"eyeColor": "brown",\
"name": "Mosley Hammond",\
"gender": "male",\
"company": "AQUACINE",\
"email": "mosleyhammond@aquacine.com",\
"phone": "+1 (836) 598-2591",\
"address": "879 Columbia Place, Seymour, Montana, 4897",\
"about": "Sunt laborum incididunt et elit in deserunt deserunt irure enim ea qui non. Minim nisi sint aute veniam reprehenderit veniam reprehenderit. Elit enim eu voluptate eu cupidatat nulla ea incididunt exercitation voluptate ut aliquip excepteur ipsum. Consequat anim fugiat irure Lorem anim consectetur est.",\
"registered": "2014-07-27T05:05:58 -02:00",\
"latitude": -43.608015,\
"longitude": -38.33894,\
"tags": [\
"proident",\
"incididunt",\
"eiusmod",\
"anim",\
"consectetur",\
"qui",\
"excepteur"\
],\
"friends": [\
{\
"id": 0,\
"name": "Hanson Davidson"\
},\
{\
"id": 1,\
"name": "Autumn Kaufman"\
},\
{\
"id": 2,\
"name": "Tammy Foley"\
}\
],\
"greeting": "Hello, Mosley Hammond! You have 4 unread messages.",\
"favoriteFruit": "apple"\
},\
{\
"_id": "54ca341753b67572a2b04935",\
"index": 3,\
"guid": "3377416b-43a2-4f9e-ada3-2479e13b44b8",\
"isActive": false,\
"balance": "$3,821.54",\
"picture": "http://placehold.it/32x32",\
"age": 31,\
"eyeColor": "green",\
"name": "Mueller Barrett",\
"gender": "male",\
"company": "GROK",\
"email": "muellerbarrett@grok.com",\
"phone": "+1 (890) 535-2834",\
"address": "571 Norwood Avenue, Westwood, Arkansas, 2164",\
"about": "Occaecat est sunt commodo ut ex excepteur elit nulla velit minim commodo commodo esse. Lorem quis eu minim consectetur. Cupidatat cupidatat consequat sit eu ex non quis nulla veniam sint enim excepteur. Consequat minim duis do do minim fugiat minim elit laborum ut velit. Occaecat laboris veniam sint reprehenderit.",\
"registered": "2014-07-18T17:15:35 -02:00",\
"latitude": 10.746577,\
"longitude": -160.266041,\
"tags": [\
"reprehenderit",\
"veniam",\
"sint",\
"commodo",\
"exercitation",\
"cillum",\
"sunt"\
],\
"friends": [\
{\
"id": 0,\
"name": "Summers Finch"\
},\
{\
"id": 1,\
"name": "Tracie Mcdaniel"\
},\
{\
"id": 2,\
"name": "Ayers Patrick"\
}\
],\
"greeting": "Hello, Mueller Barrett! You have 7 unread messages.",\
"favoriteFruit": "apple"\
},\
{\
"_id": "54ca34172775ab9615db0d1d",\
"index": 4,\
"guid": "a3102a3e-3f08-4df3-b5b5-62eff985d5ca",\
"isActive": true,\
"balance": "$3,962.27",\
"picture": "http://placehold.it/32x32",\
"age": 34,\
"eyeColor": "green",\
"name": "Patrick Foster",\
"gender": "male",\
"company": "QUAREX",\
"email": "patrickfoster@quarex.com",\
"phone": "+1 (805) 577-2362",\
"address": "640 Richards Street, Roberts, American Samoa, 5530",\
"about": "Aute occaecat occaecat ad eiusmod esse aliqua ullamco minim. Exercitation aute ut ex nostrud deserunt laboris officia amet enim do. Cillum officia laborum occaecat eiusmod reprehenderit ex et aliqua minim elit ex aliqua mollit. Occaecat dolor in fugiat laboris aliquip nisi ad voluptate duis eiusmod ad do.",\
"registered": "2014-07-22T16:45:35 -02:00",\
"latitude": 6.609025,\
"longitude": -5.357026,\
"tags": [\
"ea",\
"ut",\
"excepteur",\
"enim",\
"ad",\
"non",\
"sit"\
],\
"friends": [\
{\
"id": 0,\
"name": "Duncan Lewis"\
},\
{\
"id": 1,\
"name": "Alyce Benton"\
},\
{\
"id": 2,\
"name": "Angelique Larsen"\
}\
],\
"greeting": "Hello, Patrick Foster! You have 1 unread messages.",\
"favoriteFruit": "strawberry"\
},\
{\
"_id": "54ca3417a190f26fef815f6d",\
"index": 5,\
"guid": "c09663dd-bb0e-45a4-960c-232c0e8a9486",\
"isActive": false,\
"balance": "$1,871.12",\
"picture": "http://placehold.it/32x32",\
"age": 20,\
"eyeColor": "blue",\
"name": "Foreman Chaney",\
"gender": "male",\
"company": "DEMINIMUM",\
"email": "foremanchaney@deminimum.com",\
"phone": "+1 (966) 523-2182",\
"address": "960 Granite Street, Sunnyside, Tennessee, 1097",\
"about": "Adipisicing nisi qui id sit incididunt aute exercitation veniam consequat ipsum sit irure. Aute officia commodo Lorem consequat. Labore exercitation consequat voluptate deserunt consequat do est fugiat nisi eu dolor minim id ea.",\
"registered": "2015-01-21T00:18:00 -01:00",\
"latitude": -69.841726,\
"longitude": 121.809383,\
"tags": [\
"laboris",\
"sunt",\
"exercitation",\
"enim",\
"anim",\
"excepteur",\
"tempor"\
],\
"friends": [\
{\
"id": 0,\
"name": "Espinoza Johnston"\
},\
{\
"id": 1,\
"name": "Doreen Holder"\
},\
{\
"id": 2,\
"name": "William Ellison"\
}\
],\
"greeting": "Hello, Foreman Chaney! You have 5 unread messages.",\
"favoriteFruit": "strawberry"\
}\
]';
for (var i = 0; i < 100; i++) {
bench();
}
nashorn/test/script/basic/JDK-8062141.js 0 → 100644
浏览文件 @ e82d0319
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* JDK-8062141: Various performance issues parsing JSON
*
* @test
* @run
*/
function testJson(json) {
try {
print(JSON.stringify(JSON.parse(json)));
} catch (error) {
print(error);
}
}
testJson('"\\u003f"');
testJson('"\\u0"');
testJson('"\\u0"');
testJson('"\\u00"');
testJson('"\\u003"');
testJson('"\\u003x"');
testJson('"\\"');
testJson('"');
testJson('+1');
testJson('-1');
testJson('1.');
testJson('.1');
testJson('01');
testJson('1e');
testJson('1e0');
testJson('1a');
testJson('1e+');
testJson('1e-');
testJson('0.0e+0');
testJson('0.0e-0');
testJson('[]');
testJson('[ 1 ]');
testJson('[1,]');
testJson('[ 1 , 2 ]');
testJson('[1, 2');
testJson('{}');
testJson('{ "a" : "b" }');
testJson('{ "a" : "b" ');
testJson('{ "a" : }');
testJson('true');
testJson('tru');
testJson('true1');
testJson('false');
testJson('fals');
testJson('falser');
testJson('null');
testJson('nul');
testJson('null0');
testJson('{} 0');
testJson('{} a');
testJson('[] 0');
testJson('[] a');
testJson('1 0');
testJson('1 a');
testJson('["a":true]');
testJson('{"a",truer}');
testJson('{"a":truer}');
testJson('[1, 2, 3]');
testJson('[9223372036854774000, 9223372036854775000, 9223372036854776000]');
testJson('[1.1, 1.2, 1.3]');
testJson('[1, 1.2, 9223372036854776000, null, true]');
testJson('{ "a" : "string" , "b": 1 , "c" : 1.2 , "d" : 9223372036854776000 , "e" : null , "f" : true }');
nashorn/test/script/basic/JDK-8062141.js.EXPECTED 0 → 100644
浏览文件 @ e82d0319
"?"
SyntaxError: Invalid JSON: <json>:1:4 Invalid hex digit
"\u0"
^
SyntaxError: Invalid JSON: <json>:1:4 Invalid hex digit
"\u0"
^
SyntaxError: Invalid JSON: <json>:1:5 Invalid hex digit
"\u00"
^
SyntaxError: Invalid JSON: <json>:1:6 Invalid hex digit
"\u003"
^
SyntaxError: Invalid JSON: <json>:1:6 Invalid hex digit
"\u003x"
^
SyntaxError: Invalid JSON: <json>:1:3 Missing close quote
"\"
^
SyntaxError: Invalid JSON: <json>:1:1 Missing close quote
"
^
SyntaxError: Invalid JSON: <json>:1:0 Expected json literal but found +
+1
^
-1
SyntaxError: Invalid JSON: <json>:1:2 Invalid JSON number format
1.
^
SyntaxError: Invalid JSON: <json>:1:0 Invalid JSON number format
.1
^
SyntaxError: Invalid JSON: <json>:1:1 Expected eof but found 1
01
^
SyntaxError: Invalid JSON: <json>:1:2 Invalid JSON number format
1e
^
1
SyntaxError: Invalid JSON: <json>:1:1 Expected eof but found a
1a
^
SyntaxError: Invalid JSON: <json>:1:3 Invalid JSON number format
1e+
^
SyntaxError: Invalid JSON: <json>:1:3 Invalid JSON number format
1e-
^
0
0
[]
[1]
SyntaxError: Invalid JSON: <json>:1:3 Trailing comma is not allowed in JSON
[1,]
^
[1,2]
SyntaxError: Invalid JSON: <json>:1:5 Expected , or ] but found eof
[1, 2
^
{}
{"a":"b"}
SyntaxError: Invalid JSON: <json>:1:12 Expected , or } but found eof
{ "a" : "b"
^
SyntaxError: Invalid JSON: <json>:1:8 Expected json literal but found }
{ "a" : }
^
true
SyntaxError: Invalid JSON: <json>:1:0 Expected json literal but found ident
tru
^
SyntaxError: Invalid JSON: <json>:1:4 Expected eof but found 1
true1
^
false
SyntaxError: Invalid JSON: <json>:1:0 Expected json literal but found ident
fals
^
SyntaxError: Invalid JSON: <json>:1:5 Expected eof but found r
falser
^
null
SyntaxError: Invalid JSON: <json>:1:0 Expected json literal but found ident
nul
^
SyntaxError: Invalid JSON: <json>:1:4 Expected eof but found 0
null0
^
SyntaxError: Invalid JSON: <json>:1:3 Expected eof but found 0
{} 0
^
SyntaxError: Invalid JSON: <json>:1:3 Expected eof but found a
{} a
^
SyntaxError: Invalid JSON: <json>:1:3 Expected eof but found 0
[] 0
^
SyntaxError: Invalid JSON: <json>:1:3 Expected eof but found a
[] a
^
SyntaxError: Invalid JSON: <json>:1:2 Expected eof but found 0
1 0
^
SyntaxError: Invalid JSON: <json>:1:2 Expected eof but found a
1 a
^
SyntaxError: Invalid JSON: <json>:1:4 Expected , or ] but found :
["a":true]
^
SyntaxError: Invalid JSON: <json>:1:4 Expected : but found ,
{"a",truer}
^
SyntaxError: Invalid JSON: <json>:1:9 Expected , or } but found r
{"a":truer}
^
[1,2,3]
[9223372036854773800,9223372036854774800,9223372036854776000]
[1.1,1.2,1.3]
[1,1.2,9223372036854776000,null,true]
{"a":"string","b":1,"c":1.2,"d":9223372036854776000,"e":null,"f":true}
nashorn/test/script/basic/NASHORN-623.js.EXPECTED
浏览文件 @ e82d0319
SyntaxError: Invalid JSON: <json>:1:12 Expected number but found ident SyntaxError: Invalid JSON: <json>:1:11 Invalid JSON number format
{ "test" : -xxx } { "test" : -xxx }
^ ^
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