--- a/jdk/make/src/classes/build/tools/module/ModuleInfoReader.java Thu Mar 31 08:59:53 2016 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,357 +0,0 @@
-/*
- * 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. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * 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.
- */
-package build.tools.module;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.List;
-import java.util.function.Supplier;
-import java.util.regex.Pattern;
-import java.util.stream.Stream;
-
-import build.tools.module.Module.Builder;
-
-/**
- * Source reader of module-info.java
- */
-public class ModuleInfoReader {
- private final Path sourcefile;
- private final Builder builder;
- private ModuleInfoReader(Path file) {
- this.sourcefile = file;
- this.builder = new Builder();
- }
-
- public static Builder builder(Path file) throws IOException {
- ModuleInfoReader reader = new ModuleInfoReader(file);
- reader.readFile();
- return reader.builder;
- }
-
- /**
- * Reads the source file.
- */
- void readFile() throws IOException {
- List<String> lines = Files.readAllLines(sourcefile);
- boolean done = false;
- int lineNumber = 0;
- boolean inBlockComment = false;
- boolean inRequires = false;
- boolean reexports = false;
- boolean inProvides = false;
- boolean inWith = false;
- String serviceIntf = null;
- String providerClass = null;
- boolean inUses = false;
- boolean inExports = false;
- boolean inExportsTo = false;
- String qualifiedExports = null;
- Counter counter = new Counter();
-
- for (String line : lines) {
- lineNumber++;
- if (inBlockComment) {
- int c = line.indexOf("*/");
- if (c >= 0) {
- line = line.substring(c + 2, line.length());
- inBlockComment = false;
- } else {
- // skip lines until end of comment block
- continue;
- }
- }
- inBlockComment = beginBlockComment(line);
-
- line = trimComment(line).trim();
- // ignore empty lines
- if (line.length() == 0) {
- continue;
- }
- String values;
- if (inRequires || inExports | inUses | (inWith && providerClass == null)) {
- values = line;
- } else {
- String[] s = line.split("\\s+");
- String keyword = s[0].trim();
- int nextIndex = keyword.length();
- switch (keyword) {
- case "module":
- if (s.length != 3 || !s[2].trim().equals("{")) {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed");
- }
- builder.name(s[1].trim());
- continue; // next line
- case "requires":
- inRequires = true;
- counter.numRequires++;
- if (s.length >= 2) {
- String ss = s[1].trim();
- if (ss.equals("public")) {
- nextIndex = line.indexOf(ss) + ss.length();
- reexports = true;
- }
- }
- break;
- case "exports":
- inExports = true;
- inExportsTo = false;
- counter.numExports++;
- qualifiedExports = null;
- if (s.length >= 3) {
- qualifiedExports = s[1].trim();
- nextIndex = line.indexOf(qualifiedExports, nextIndex)
- + qualifiedExports.length();
- if (s[2].trim().equals("to")) {
- inExportsTo = true;
- nextIndex = line.indexOf("to", nextIndex) + "to".length();
- } else {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed: " + s[2]);
- }
- }
- break;
- case "to":
- if (!inExports || qualifiedExports == null) {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed");
- }
- inExportsTo = true;
- break;
- case "uses":
- inUses = true;
- counter.numUses++;
- break;
- case "provides":
- inProvides = true;
- inWith = false;
- counter.numProvides++;
- serviceIntf = null;
- providerClass = null;
- if (s.length >= 2) {
- serviceIntf = s[1].trim();
- nextIndex = line.indexOf(serviceIntf) + serviceIntf.length();
- }
- if (s.length >= 3) {
- if (s[2].trim().equals("with")) {
- inWith = true;
- nextIndex = line.indexOf("with") + "with".length();
- } else {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed: " + s[2]);
- }
- }
- break;
- case "with":
- if (!inProvides || serviceIntf == null) {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed");
- }
- inWith = true;
- nextIndex = line.indexOf("with") + "with".length();
- break;
- case "}":
- counter.validate(builder);
- done = true;
- continue; // next line
- default:
- throw new RuntimeException(sourcefile + ", \"" +
- keyword + "\" on line " +
- lineNumber + ", is not recognized");
- }
- values = line.substring(nextIndex, line.length()).trim();
- }
-
- int len = values.length();
- if (len == 0) {
- continue; // next line
- }
- char lastchar = values.charAt(len - 1);
- if (lastchar != ',' && lastchar != ';') {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", is malformed:" +
- " ',' or ';' is missing.");
- }
-
- values = values.substring(0, len - 1).trim();
- // parse the values specified for a keyword specified
- for (String s : values.split(",")) {
- s = s.trim();
- if (s.length() > 0) {
- if (inRequires) {
- if (builder.requires.contains(s)) {
- throw new RuntimeException(sourcefile + ", line "
- + lineNumber + " duplicated requires: \"" + s + "\"");
- }
- builder.require(s, reexports);
- } else if (inExports) {
- if (!inExportsTo && qualifiedExports == null) {
- builder.export(s);
- } else {
- builder.exportTo(qualifiedExports, s);
- }
- } else if (inUses) {
- builder.use(s);
- } else if (inProvides) {
- if (!inWith) {
- serviceIntf = s;
- } else {
- providerClass = s;
- builder.provide(serviceIntf, providerClass);
- }
- }
- }
- }
- if (lastchar == ';') {
- inRequires = false;
- reexports = false;
- inExports = false;
- inExportsTo = false;
- inProvides = false;
- inWith = false;
- inUses = false;
- }
- }
-
- if (inBlockComment) {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", missing \"*/\" to end a block comment");
- }
- if (!done) {
- throw new RuntimeException(sourcefile + ", line " +
- lineNumber + ", missing \"}\" to end module definition" +
- " for \"" + builder + "\"");
- }
- return;
- }
-
- // the naming convention for the module names without dashes
- private static final Pattern CLASS_NAME_PATTERN = Pattern.compile("[\\w\\.\\*_$/]+");
- private static boolean beginBlockComment(String line) {
- int pos = 0;
- while (pos >= 0 && pos < line.length()) {
- int c = line.indexOf("/*", pos);
- if (c < 0) {
- return false;
- }
-
- if (c > 0 && !Character.isWhitespace(line.charAt(c - 1))) {
- return false;
- }
-
- int c1 = line.indexOf("//", pos);
- if (c1 >= 0 && c1 < c) {
- return false;
- }
-
- int c2 = line.indexOf("*/", c + 2);
- if (c2 < 0) {
- return true;
- }
- pos = c + 2;
- }
- return false;
- }
- private static String trimComment(String line) {
- StringBuilder sb = new StringBuilder();
-
- int pos = 0;
- while (pos >= 0 && pos < line.length()) {
- int c1 = line.indexOf("//", pos);
- if (c1 > 0 && !Character.isWhitespace(line.charAt(c1 - 1))) {
- // not a comment
- c1 = -1;
- }
-
- int c2 = line.indexOf("/*", pos);
- if (c2 > 0 && !Character.isWhitespace(line.charAt(c2 - 1))) {
- // not a comment
- c2 = -1;
- }
-
- int c = line.length();
- int n = line.length();
- if (c1 >= 0 || c2 >= 0) {
- if (c1 >= 0) {
- c = c1;
- }
- if (c2 >= 0 && c2 < c) {
- c = c2;
- }
- int c3 = line.indexOf("*/", c2 + 2);
- if (c == c2 && c3 > c2) {
- n = c3 + 2;
- }
- }
- if (c > 0) {
- if (sb.length() > 0) {
- // add a whitespace if multiple comments on one line
- sb.append(" ");
- }
- sb.append(line.substring(pos, c));
- }
- pos = n;
- }
- return sb.toString();
- }
-
-
- static class Counter {
- int numRequires;
- int numExports;
- int numUses;
- int numProvides;
-
- void validate(Builder builder) {
- assertEquals("requires", numRequires, builder.requires.size(),
- () -> builder.requires.stream()
- .map(Module.Dependence::toString));
- assertEquals("exports", numExports, builder.exports.size(),
- () -> builder.exports.entrySet().stream()
- .map(e -> "exports " + e.getKey() + " to " + e.getValue()));
- assertEquals("uses", numUses, builder.uses.size(),
- () -> builder.uses.stream());
- assertEquals("provides", numProvides,
- (int)builder.provides.values().stream()
- .flatMap(s -> s.stream())
- .count(),
- () -> builder.provides.entrySet().stream()
- .map(e -> "provides " + e.getKey() + " with " + e.getValue()));
- }
-
- private static void assertEquals(String msg, int expected, int got,
- Supplier<Stream<String>> supplier) {
- if (expected != got){
- System.err.println("ERROR: mismatched " + msg +
- " expected: " + expected + " got: " + got );
- supplier.get().sorted()
- .forEach(System.err::println);
- throw new AssertionError("mismatched " + msg +
- " expected: " + expected + " got: " + got + " ");
- }
- }
- }
-}