Java ErrorManager类代码示例

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Construct a parser.
 *
 * @param env     script environment
 * @param source  source to parse
 * @param errors  error manager
 * @param strict  parser created with strict mode enabled.
 * @param lineOffset line offset to start counting lines from
 * @param log debug logger if one is needed
 */
public Parser(final ScriptEnvironment env, final Source source, final ErrorManager errors, final boolean strict, final int lineOffset, final DebugLogger log) {
    super(source, errors, strict, lineOffset);
    this.env = env;
    this.namespace = new Namespace(env.getNamespace());
    this.scripting = env._scripting;
    if (this.scripting) {
        this.lineInfoReceiver = new Lexer.LineInfoReceiver() {
            @Override
            public void lineInfo(final int receiverLine, final int receiverLinePosition) {
                // update the parser maintained line information
                Parser.this.line = receiverLine;
                Parser.this.linePosition = receiverLinePosition;
            }
        };
    } else {
        // non-scripting mode script can't have multi-line literals
        this.lineInfoReceiver = null;
    }

    this.log = log == null ? DebugLogger.DISABLED_LOGGER : log;
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Construct a parser.
 *
 * @param env     script environment
 * @param source  source to parse
 * @param errors  error manager
 * @param strict  parser created with strict mode enabled.
 * @param lineOffset line offset to start counting lines from
 * @param log debug logger if one is needed
 */
public Parser(final ScriptEnvironment env, final Source source, final ErrorManager errors, final boolean strict, final int lineOffset, final DebugLogger log) {
    super(source, errors, strict, lineOffset);
    this.lc = new ParserContext();
    this.defaultNames = new ArrayDeque<>();
    this.env = env;
    this.namespace = new Namespace(env.getNamespace());
    this.scripting = env._scripting;
    if (this.scripting) {
        this.lineInfoReceiver = new Lexer.LineInfoReceiver() {
            @Override
            public void lineInfo(final int receiverLine, final int receiverLinePosition) {
                // update the parser maintained line information
                Parser.this.line = receiverLine;
                Parser.this.linePosition = receiverLinePosition;
            }
        };
    } else {
        // non-scripting mode script can't have multi-line literals
        this.lineInfoReceiver = null;
    }

    this.log = log == null ? DebugLogger.DISABLED_LOGGER : log;
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
@Test
public void evalTest() {
    final Options options = new Options("");
    final ErrorManager errors = new ErrorManager();
    final Context cx = new Context(options, errors, Thread.currentThread().getContextClassLoader());
    final Global oldGlobal = Context.getGlobal();
    Context.setGlobal(cx.createGlobal());
    try {
        String code = "22 + 10";
        assertTrue(32.0 == ((Number)(eval(cx, "<evalTest>", code))).doubleValue());

        code = "obj = { js: 'nashorn' }; obj.js";
        assertEquals(eval(cx, "<evalTest2>", code), "nashorn");
    } finally {
        Context.setGlobal(oldGlobal);
    }
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
@Test
public void compileErrorTest() {
    final Options options = new Options("");
    final ErrorManager errors = new ErrorManager();
    final Context cx = new Context(options, errors, Thread.currentThread().getContextClassLoader());
    final Global oldGlobal = Context.getGlobal();
    Context.setGlobal(cx.createGlobal());
    try {
        final ScriptFunction script = cx.compileScript(sourceFor("<evalCompileErrorTest>", "*/"), Context.getGlobal());
        if (script != null) {
            fail("Invalid script compiled without errors");
        }
        if (errors.getNumberOfErrors() != 1) {
            fail("Wrong number of errors: " + errors.getNumberOfErrors());
        }
    } finally {
        Context.setGlobal(oldGlobal);
    }
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
@BeforeClass
public void setupTest() {
    final Options options = new Options("nashorn");
    options.set("compile.only", true);
    options.set("print.ast", true);
    options.set("print.parse", true);
    options.set("scripting", true);
    options.set("const.as.var", true);
    options.set("verify.code", true);

    final ErrorManager errors = new ErrorManager() {
        @Override
        public void error(final String msg) {
            log(msg);
        }
    };

    final StringWriter sw = new StringWriter();
    final PrintWriter pw = new PrintWriter(sw);
    this.context = new Context(options, errors, pw, pw, Thread.currentThread().getContextClassLoader());
    this.global = context.createGlobal();
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
@BeforeClass
public void setupTest() {
    final Options options = new Options("nashorn");
    options.set("anon.functions", true);
    options.set("compile.only", true);
    options.set("print.ast", true);
    options.set("print.parse", true);
    options.set("scripting", true);
    options.set("const.as.var", true);
    options.set("verify.code", true);

    final ErrorManager errors = new ErrorManager() {
        @Override
        public void error(final String msg) {
            log(msg);
        }
    };

    final StringWriter sw = new StringWriter();
    final PrintWriter pw = new PrintWriter(sw);
    this.context = new Context(options, errors, pw, pw, Thread.currentThread().getContextClassLoader());
    this.global = context.createGlobal();
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Constructor.
 * 
 * @throws LanguageAdapterException
 *         In case of an initialization error
 */
public NashornAdapter() throws LanguageAdapterException
{
	super( "Nashorn", Version.version(), "JavaScript", new NashornScriptEngineFactory().getLanguageVersion(), Arrays.asList( "js", "javascript", "nashorn" ), "js", Arrays.asList( "javascript", "js", "nashorn" ),
		"nashorn" );

	try
	{
		System.setProperty( "nashorn.persistent.code.cache", getCacheDir().getCanonicalPath() );
	}
	catch( IOException x )
	{
		throw new LanguageAdapterException( NashornAdapter.class, "Could not access cache directory: " + getCacheDir(), x );
	}

	PrintWriter out = new PrintWriter( new ExecutionContextWriter(), true );
	PrintWriter err = new PrintWriter( new ExecutionContextErrorWriter(), true );

	// See: jdk.nashorn.internal.runtime.ScriptEnvironment
	Options options = new Options( "nashorn", err );
	options.set( "print.no.newline", true );
	options.set( "persistent.code.cache", true );
	ErrorManager errors = new ErrorManager( err );

	context = new Context( options, errors, out, err, getClass().getClassLoader() );
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Construct a parser.
 *
 * @param env     script environment
 * @param source  source to parse
 * @param errors  error manager
 * @param strict  parser created with strict mode enabled.
 */
public Parser(final ScriptEnvironment env, final Source source, final ErrorManager errors, final boolean strict) {
    super(source, errors, strict);
    this.env       = env;
    this.namespace = new Namespace(env.getNamespace());
    this.scripting = env._scripting;
    if (this.scripting) {
        this.lineInfoReceiver = new Lexer.LineInfoReceiver() {
            @Override
            public void lineInfo(final int receiverLine, final int receiverLinePosition) {
                // update the parser maintained line information
                Parser.this.line = receiverLine;
                Parser.this.linePosition = receiverLinePosition;
            }
        };
    } else {
        // non-scripting mode script can't have multi-line literals
        this.lineInfoReceiver = null;
    }
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
@BeforeClass
public void setupTest() {
    final Options options = new Options("nashorn");
    options.set("anon.functions", true);
    options.set("compile.only", true);
    options.set("print.ast", true);
    options.set("print.parse", true);
    options.set("scripting", true);

    final ErrorManager errors = new ErrorManager() {
        @Override
        public void error(final String msg) {
            log(msg);
        }
    };

    final StringWriter sw = new StringWriter();
    final PrintWriter pw = new PrintWriter(sw);
    this.context = new Context(options, errors, pw, pw, Thread.currentThread().getContextClassLoader());
    this.global = context.createGlobal();
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Construct a parser.
 *
 * @param source     Source to parse.
 * @param errors     Error reporting manager.
 * @param strict     True if we are in strict mode
 * @param lineOffset Offset from which lines should be counted
 */
protected AbstractParser(final Source source, final ErrorManager errors, final boolean strict, final int lineOffset) {
    this.source       = source;
    this.errors       = errors;
    this.k            = -1;
    this.token        = Token.toDesc(EOL, 0, 1);
    this.type         = EOL;
    this.last         = EOL;
    this.isStrictMode = strict;
    this.lineOffset   = lineOffset;
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Report an error.
 *
 * @param errorType  The error type
 * @param message    Error message.
 * @return ParserException upon failure. Caller should throw and not ignore
 */
protected final ParserException error(final JSErrorType errorType, final String message) {
    // TODO - column needs to account for tabs.
    final int position = Token.descPosition(token);
    final int column = position - linePosition;
    final String formatted = ErrorManager.format(message, source, line, column, token);
    return new ParserException(errorType, formatted, source, line, column, token);
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
private void throwParserException(final String message, final Node origin) {
    if (origin == null) {
        throw new ParserException(message);
    }
    final Source source = compiler.getSource();
    final long token = origin.getToken();
    final int line = source.getLine(origin.getStart());
    final int column = source.getColumn(origin.getStart());
    final String formatted = ErrorManager.format(message, source, line, column, token);
    throw new ParserException(JSErrorType.SYNTAX_ERROR, formatted, source, line, column, token);
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Constructor
 *
 * @param context                  context
 * @param env                      script environment
 * @param installer                code installer
 * @param source                   source to compile
 * @param errors                   error manager
 * @param isStrict                 is this a strict compilation
 * @param isOnDemand               is this an on demand compilation
 * @param compiledFunction         compiled function, if any
 * @param types                    parameter and return value type information, if any is known
 * @param invalidatedProgramPoints invalidated program points for recompilation
 * @param typeInformationFile      descriptor of the location where type information is persisted
 * @param continuationEntryPoints  continuation entry points for restof method
 * @param runtimeScope             runtime scope for recompilation type lookup in {@code TypeEvaluator}
 */
@SuppressWarnings("unused")
public Compiler(
        final Context context,
        final ScriptEnvironment env,
        final CodeInstaller<ScriptEnvironment> installer,
        final Source source,
        final ErrorManager errors,
        final boolean isStrict,
        final boolean isOnDemand,
        final RecompilableScriptFunctionData compiledFunction,
        final TypeMap types,
        final Map<Integer, Type> invalidatedProgramPoints,
        final Object typeInformationFile,
        final int[] continuationEntryPoints,
        final ScriptObject runtimeScope) {
    this.context                  = context;
    this.env                      = env;
    this.installer                = installer;
    this.constantData             = new ConstantData();
    this.compileUnits             = CompileUnit.createCompileUnitSet();
    this.bytecode                 = new LinkedHashMap<>();
    this.log                      = initLogger(context);
    this.source                   = source;
    this.errors                   = errors;
    this.sourceName               = FunctionNode.getSourceName(source);
    this.onDemand                 = isOnDemand;
    this.compiledFunction         = compiledFunction;
    this.types                    = types;
    this.invalidatedProgramPoints = invalidatedProgramPoints == null ? new HashMap<Integer, Type>() : invalidatedProgramPoints;
    this.typeInformationFile      = typeInformationFile;
    this.continuationEntryPoints  = continuationEntryPoints == null ? null: continuationEntryPoints.clone();
    this.typeEvaluator            = new TypeEvaluator(this, runtimeScope);
    this.firstCompileUnitName     = firstCompileUnitName();
    this.strict                   = isStrict;

    this.optimistic = env._optimistic_types;
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
/**
 * Construct a parser.
 *
 * @param source     Source to parse.
 * @param errors     Error reporting manager.
 * @param strict     True if we are in strict mode
 * @param lineOffset Offset from which lines should be counted
 */
protected AbstractParser(final Source source, final ErrorManager errors, final boolean strict, final int lineOffset) {
    if (source.getLength() > Token.LENGTH_MASK) {
        throw new RuntimeException("Source exceeds size limit of " + Token.LENGTH_MASK + " bytes");
    }
    this.source       = source;
    this.errors       = errors;
    this.k            = -1;
    this.token        = Token.toDesc(EOL, 0, 1);
    this.type         = EOL;
    this.last         = EOL;
    this.isStrictMode = strict;
    this.lineOffset   = lineOffset;
}
 

import jdk.nashorn.internal.runtime.ErrorManager; //导入依赖的package包/类
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);
}