rev 1336 : 8080090: -d option should dump script source as well
Reviewed-by: hannesw, lagergren
1 /*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.internal.runtime;
27
28 import java.io.PrintWriter;
29 import java.util.HashMap;
30 import java.util.List;
31 import java.util.Locale;
32 import java.util.Map;
33 import java.util.StringTokenizer;
34 import java.util.TimeZone;
35 import java.util.logging.Level;
36 import jdk.nashorn.internal.codegen.Namespace;
37 import jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor;
38 import jdk.nashorn.internal.runtime.options.KeyValueOption;
39 import jdk.nashorn.internal.runtime.options.LoggingOption;
40 import jdk.nashorn.internal.runtime.options.LoggingOption.LoggerInfo;
41 import jdk.nashorn.internal.runtime.options.Option;
42 import jdk.nashorn.internal.runtime.options.Options;
43
44 /**
45 * Script environment consists of command line options, arguments, script files
46 * and output and error writers, top level Namespace etc.
47 */
48 public final class ScriptEnvironment {
49 /** Output writer for this environment */
50 private final PrintWriter out;
51
52 /** Error writer for this environment */
53 private final PrintWriter err;
54
55 /** Top level namespace. */
56 private final Namespace namespace;
57
58 /** Current Options object. */
59 private final Options options;
60
61 /** Size of the per-global Class cache size */
62 public final int _class_cache_size;
63
64 /** Only compile script, do not run it or generate other ScriptObjects */
65 public final boolean _compile_only;
66
67 /** Accept "const" keyword and treat it as variable. Interim feature */
68 public final boolean _const_as_var;
69
70 /** Accumulated callsite flags that will be used when bootstrapping script callsites */
71 public final int _callsite_flags;
72
73 /** Generate line number table in class files */
74 public final boolean _debug_lines;
75
76 /** Package to which generated class files are added */
77 public final String _dest_dir;
78
79 /** Display stack trace upon error, default is false */
80 public final boolean _dump_on_error;
81
82 /** Invalid lvalue expressions should be reported as early errors */
83 public final boolean _early_lvalue_error;
84
85 /** Empty statements should be preserved in the AST */
86 public final boolean _empty_statements;
87
88 /** Show full Nashorn version */
89 public final boolean _fullversion;
90
91 /** Launch using as fx application */
92 public final boolean _fx;
93
94 /** Use single Global instance per jsr223 engine instance. */
95 public final boolean _global_per_engine;
96
97 /** Enable experimental ECMAScript 6 features. */
98 public final boolean _es6;
99
100 /** Argument passed to compile only if optimistic compilation should take place */
101 public static final String COMPILE_ONLY_OPTIMISTIC_ARG = "optimistic";
102
103 /**
104 * Behavior when encountering a function declaration in a lexical context where only statements are acceptable
105 * (function declarations are source elements, but not statements).
106 */
107 public enum FunctionStatementBehavior {
108 /**
109 * Accept the function declaration silently and treat it as if it were a function expression assigned to a local
110 * variable.
111 */
112 ACCEPT,
113 /**
114 * Log a parser warning, but accept the function declaration and treat it as if it were a function expression
115 * assigned to a local variable.
116 */
117 WARNING,
118 /**
119 * Raise a {@code SyntaxError}.
120 */
121 ERROR
122 }
123
124 /**
125 * Behavior when encountering a function declaration in a lexical context where only statements are acceptable
126 * (function declarations are source elements, but not statements).
127 */
128 public final FunctionStatementBehavior _function_statement;
129
130 /** Should lazy compilation take place */
131 public final boolean _lazy_compilation;
132
133 /** Should optimistic types be used */
134 public final boolean _optimistic_types;
135
136 /** Create a new class loaded for each compilation */
137 public final boolean _loader_per_compile;
138
139 /** Do not support Java support extensions. */
140 public final boolean _no_java;
141
142 /** Do not support non-standard syntax extensions. */
143 public final boolean _no_syntax_extensions;
144
145 /** Do not support typed arrays. */
146 public final boolean _no_typed_arrays;
147
148 /** Only parse the source code, do not compile */
149 public final boolean _parse_only;
150
151 /** Enable disk cache for compiled scripts */
152 public final boolean _persistent_cache;
153
154 /** Print the AST before lowering */
155 public final boolean _print_ast;
156
157 /** Print the AST after lowering */
158 public final boolean _print_lower_ast;
159
160 /** Print resulting bytecode for script */
161 public final boolean _print_code;
162
163 /** Directory (optional) to print files to */
164 public final String _print_code_dir;
165
166 /** List of functions to write to the print code dir, optional */
167 public final String _print_code_func;
168
169 /** Print memory usage for IR after each phase */
170 public final boolean _print_mem_usage;
171
172 /** Print function will no print newline characters */
173 public final boolean _print_no_newline;
174
175 /** Print AST in more human readable form */
176 public final boolean _print_parse;
177
178 /** Print AST in more human readable form after Lowering */
179 public final boolean _print_lower_parse;
180
181 /** print symbols and their contents for the script */
182 public final boolean _print_symbols;
183
184 /** is this environment in scripting mode? */
185 public final boolean _scripting;
186
187 /** is this environment in strict mode? */
188 public final boolean _strict;
189
190 /** print version info of Nashorn */
191 public final boolean _version;
192
193 /** should code verification be done of generated bytecode */
194 public final boolean _verify_code;
195
196 /** time zone for this environment */
197 public final TimeZone _timezone;
198
199 /** Local for error messages */
200 public final Locale _locale;
201
202 /** Logging */
203 public final Map<String, LoggerInfo> _loggers;
204
205 /** Timing */
206 public final Timing _timing;
207
208 /**
209 * Constructor
210 *
211 * @param options a Options object
212 * @param out output print writer
213 * @param err error print writer
214 */
215 @SuppressWarnings("unused")
216 public ScriptEnvironment(final Options options, final PrintWriter out, final PrintWriter err) {
217 this.out = out;
218 this.err = err;
219 this.namespace = new Namespace();
220 this.options = options;
221
222 _class_cache_size = options.getInteger("class.cache.size");
223 _compile_only = options.getBoolean("compile.only");
224 _const_as_var = options.getBoolean("const.as.var");
225 _debug_lines = options.getBoolean("debug.lines");
226 _dest_dir = options.getString("d");
227 _dump_on_error = options.getBoolean("doe");
228 _early_lvalue_error = options.getBoolean("early.lvalue.error");
229 _empty_statements = options.getBoolean("empty.statements");
230 _fullversion = options.getBoolean("fullversion");
231 if (options.getBoolean("function.statement.error")) {
232 _function_statement = FunctionStatementBehavior.ERROR;
233 } else if (options.getBoolean("function.statement.warning")) {
234 _function_statement = FunctionStatementBehavior.WARNING;
235 } else {
236 _function_statement = FunctionStatementBehavior.ACCEPT;
237 }
238 _fx = options.getBoolean("fx");
239 _global_per_engine = options.getBoolean("global.per.engine");
240 _lazy_compilation = options.getBoolean("lazy.compilation");
241 _optimistic_types = options.getBoolean("optimistic.types");
242 _loader_per_compile = options.getBoolean("loader.per.compile");
243 _no_java = options.getBoolean("no.java");
244 _no_syntax_extensions = options.getBoolean("no.syntax.extensions");
245 _no_typed_arrays = options.getBoolean("no.typed.arrays");
246 _parse_only = options.getBoolean("parse.only");
247 _persistent_cache = options.getBoolean("persistent.code.cache");
248 _print_ast = options.getBoolean("print.ast");
249 _print_lower_ast = options.getBoolean("print.lower.ast");
250 _print_code = options.getString("print.code") != null;
251 _print_mem_usage = options.getBoolean("print.mem.usage");
252 _print_no_newline = options.getBoolean("print.no.newline");
253 _print_parse = options.getBoolean("print.parse");
254 _print_lower_parse = options.getBoolean("print.lower.parse");
255 _print_symbols = options.getBoolean("print.symbols");
256 _scripting = options.getBoolean("scripting");
257 _strict = options.getBoolean("strict");
258 _version = options.getBoolean("version");
259 _verify_code = options.getBoolean("verify.code");
260
261 final String language = options.getString("language");
262 if (language == null || language.equals("es5")) {
263 _es6 = false;
264 } else if (language.equals("es6")) {
265 _es6 = true;
266 } else {
267 throw new RuntimeException("Unsupported language: " + language);
268 }
269
270 String dir = null;
271 String func = null;
272 final String pc = options.getString("print.code");
273 if (pc != null) {
274 final StringTokenizer st = new StringTokenizer(pc, ",");
275 while (st.hasMoreTokens()) {
276 final StringTokenizer st2 = new StringTokenizer(st.nextToken(), ":");
277 while (st2.hasMoreTokens()) {
278 final String cmd = st2.nextToken();
279 if ("dir".equals(cmd)) {
280 dir = st2.nextToken();
281 } else if ("function".equals(cmd)) {
282 func = st2.nextToken();
283 }
284 }
285 }
286 }
287 _print_code_dir = dir;
288 _print_code_func = func;
289
290 int callSiteFlags = 0;
291 if (options.getBoolean("profile.callsites")) {
292 callSiteFlags |= NashornCallSiteDescriptor.CALLSITE_PROFILE;
293 }
294
295 if (options.get("trace.callsites") instanceof KeyValueOption) {
296 callSiteFlags |= NashornCallSiteDescriptor.CALLSITE_TRACE;
297 final KeyValueOption kv = (KeyValueOption)options.get("trace.callsites");
298 if (kv.hasValue("miss")) {
299 callSiteFlags |= NashornCallSiteDescriptor.CALLSITE_TRACE_MISSES;
300 }
301 if (kv.hasValue("enterexit") || (callSiteFlags & NashornCallSiteDescriptor.CALLSITE_TRACE_MISSES) == 0) {
302 callSiteFlags |= NashornCallSiteDescriptor.CALLSITE_TRACE_ENTEREXIT;
303 }
304 if (kv.hasValue("objects")) {
305 callSiteFlags |= NashornCallSiteDescriptor.CALLSITE_TRACE_VALUES;
306 }
307 }
308 this._callsite_flags = callSiteFlags;
309
310 final Option<?> timezoneOption = options.get("timezone");
311 if (timezoneOption != null) {
312 this._timezone = (TimeZone)timezoneOption.getValue();
313 } else {
314 this._timezone = TimeZone.getDefault();
315 }
316
317 final Option<?> localeOption = options.get("locale");
318 if (localeOption != null) {
319 this._locale = (Locale)localeOption.getValue();
320 } else {
321 this._locale = Locale.getDefault();
322 }
323
324 final LoggingOption loggingOption = (LoggingOption)options.get("log");
325 this._loggers = loggingOption == null ? new HashMap<String, LoggerInfo>() : loggingOption.getLoggers();
326
327 final LoggerInfo timeLoggerInfo = _loggers.get(Timing.getLoggerName());
328 this._timing = new Timing(timeLoggerInfo != null && timeLoggerInfo.getLevel() != Level.OFF);
329 }
330
331 /**
332 * Get the output stream for this environment
333 * @return output print writer
334 */
335 public PrintWriter getOut() {
336 return out;
337 }
338
339 /**
340 * Get the error stream for this environment
341 * @return error print writer
342 */
343 public PrintWriter getErr() {
344 return err;
345 }
346
347 /**
348 * Get the namespace for this environment
349 * @return namespace
350 */
351 public Namespace getNamespace() {
352 return namespace;
353 }
354
355 /**
356 * Return the JavaScript files passed to the program
357 *
358 * @return a list of files
359 */
360 public List<String> getFiles() {
361 return options.getFiles();
362 }
363
364 /**
365 * Return the user arguments to the program, i.e. those trailing "--" after
366 * the filename
367 *
368 * @return a list of user arguments
369 */
370 public List<String> getArguments() {
371 return options.getArguments();
372 }
373
374 /**
375 * Check if there is a logger registered for a particular name: typically
376 * the "name" attribute of a Loggable annotation on a class
377 *
378 * @param name logger name
379 * @return true, if a logger exists for that name, false otherwise
380 */
381 public boolean hasLogger(final String name) {
382 return _loggers.get(name) != null;
383 }
384
385 /**
386 * Check if compilation/runtime timings are enabled
387 * @return true if enabled
388 */
389 public boolean isTimingEnabled() {
390 return _timing != null ? _timing.isEnabled() : false;
391 }
392
393 }
--- EOF ---