jdk8-mips64-public/langtools: comparison src/share/classes/com/sun/tools/sjavac/BuildState.java

--1:000000000000
+:959103a6100f
+/*
+* Copyright (c) 2012, 2013, 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 com.sun.tools.sjavac;
+import java.io.File;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+/**
+* The build state class captures the source code and generated artifacts
+* from a build. There are usually two build states, the previous one (prev),
+* loaded from the javac_state file, and the current one (now).
+*
+* <p><b>This is NOT part of any supported API.
+* If you write code that depends on this, you do so at your own
+* risk.  This code and its internal interfaces are subject to change
+* or deletion without notice.</b></p>
+*/
+public class BuildState {
+private Map<String,Module> modules = new HashMap<String,Module>();
+private Map<String,Package> packages = new HashMap<String,Package>();
+private Map<String,Source> sources = new HashMap<String,Source>();
+private Map<String,File> artifacts = new HashMap<String,File>();
+// Map from package to a set of packages that depend on said package.
+private Map<String,Set<String>> dependents = new HashMap<String,Set<String>>();
+public  Map<String,Module> modules() { return modules; }
+public  Map<String,Package> packages() { return packages; }
+public  Map<String,Source> sources() { return sources; }
+public  Map<String,File> artifacts() { return artifacts; }
+public  Map<String,Set<String>> dependents() { return dependents; }
+/**
+* Lookup a module from a name. Create the module if it does
+* not exist yet.
+*/
+public Module lookupModule(String mod) {
+Module m = modules.get(mod);
+if (m == null) {
+m = new Module(mod, "???");
+modules.put(mod, m);
+}
+return m;
+}
+/**
+* Find a module from a given package name. For example:
+* The package name "base:java.lang" will fetch the module named "base".
+* The package name ":java.net" will fetch the default module.
+*/
+Module findModuleFromPackageName(String pkg) {
+int cp = pkg.indexOf(':');
+assert(cp != -1);
+String mod = pkg.substring(0, cp);
+return lookupModule(mod);
+}
+/**
+* Store references to all packages, sources and artifacts for all modules
+* into the build state. I.e. flatten the module tree structure
+* into global maps stored in the BuildState for easy access.
+*
+* @param m The set of modules.
+*/
+public void flattenPackagesSourcesAndArtifacts(Map<String,Module> m) {
+modules = m;
+// Extract all the found packages.
+for (Module i : modules.values()) {
+for (Map.Entry<String,Package> j : i.packages().entrySet()) {
+Package p = packages.get(j.getKey());
+// Check that no two different packages are stored under same name.
+assert(p == null || p == j.getValue());
+if (p == null) {
+p = j.getValue();
+packages.put(j.getKey(),j.getValue());
+}
+for (Map.Entry<String,Source> k : p.sources().entrySet()) {
+Source s = sources.get(k.getKey());
+// Check that no two different sources are stored under same name.
+assert(s == null || s == k.getValue());
+if (s == null) {
+s = k.getValue();
+sources.put(k.getKey(), k.getValue());
+}
+}
+for (Map.Entry<String,File> g : p.artifacts().entrySet()) {
+File f = artifacts.get(g.getKey());
+// Check that no two artifacts are stored under the same file.
+assert(f == null || f == g.getValue());
+if (f == null) {
+f = g.getValue();
+artifacts.put(g.getKey(), g.getValue());
+}
+}
+}
+}
+}
+/**
+* Store references to all artifacts found in the module tree into the maps
+* stored in the build state.
+*
+* @param m The set of modules.
+*/
+public void flattenArtifacts(Map<String,Module> m) {
+modules = m;
+// Extract all the found packages.
+for (Module i : modules.values()) {
+for (Map.Entry<String,Package> j : i.packages().entrySet()) {
+Package p = packages.get(j.getKey());
+// Check that no two different packages are stored under same name.
+assert(p == null || p == j.getValue());
+p = j.getValue();
+packages.put(j.getKey(),j.getValue());
+for (Map.Entry<String,File> g : p.artifacts().entrySet()) {
+File f = artifacts.get(g.getKey());
+// Check that no two artifacts are stored under the same file.
+assert(f == null || f == g.getValue());
+artifacts.put(g.getKey(), g.getValue());
+}
+}
+}
+}
+/**
+* Calculate the package dependents (ie the reverse of the dependencies).
+*/
+public void calculateDependents() {
+dependents = new HashMap<String,Set<String>>();
+for (String s : packages.keySet()) {
+Package p = packages.get(s);
+for (String d : p.dependencies()) {
+Set<String> ss = dependents.get(d);
+if (ss == null) {
+ss = new HashSet<String>();
+dependents.put(d, ss);
+}
+// Add the dependent information to the global dependent map.
+ss.add(s);
+Package dp = packages.get(d);
+// Also add the dependent information to the package specific map.
+// Normally, you do not compile java.lang et al. Therefore
+// there are several packages that p depends upon that you
+// do not have in your state database. This is perfectly fine.
+if (dp != null) {
+// But this package did exist in the state database.
+dp.addDependent(p.name());
+}
+}
+}
+}
+/**
+* Verify that the setModules method above did the right thing when
+* running through the module->package->source structure.
+*/
+public void checkInternalState(String msg, boolean linkedOnly, Map<String,Source> srcs) {
+boolean baad = false;
+Map<String,Source> original = new HashMap<String,Source>();
+Map<String,Source> calculated = new HashMap<String,Source>();
+for (String s : sources.keySet()) {
+Source ss = sources.get(s);
+if (ss.isLinkedOnly() == linkedOnly) {
+calculated.put(s,ss);
+}
+}
+for (String s : srcs.keySet()) {
+Source ss = srcs.get(s);
+if (ss.isLinkedOnly() == linkedOnly) {
+original.put(s,ss);
+}
+}
+if (original.size() != calculated.size()) {
+Log.error("INTERNAL ERROR "+msg+" original and calculated are not the same size!");
+baad = true;
+}
+if (!original.keySet().equals(calculated.keySet())) {
+Log.error("INTERNAL ERROR "+msg+" original and calculated do not have the same domain!");
+baad = true;
+}
+if (!baad) {
+for (String s : original.keySet()) {
+Source s1 = original.get(s);
+Source s2 = calculated.get(s);
+if (s1 == null || s2 == null || !s1.equals(s2)) {
+Log.error("INTERNAL ERROR "+msg+" original and calculated have differing elements for "+s);
+}
+baad = true;
+}
+}
+if (baad) {
+for (String s : original.keySet()) {
+Source ss = original.get(s);
+Source sss = calculated.get(s);
+if (sss == null) {
+Log.error("The file "+s+" does not exist in calculated tree of sources.");
+}
+}
+for (String s : calculated.keySet()) {
+Source ss = calculated.get(s);
+Source sss = original.get(s);
+if (sss == null) {
+Log.error("The file "+s+" does not exist in original set of found sources.");
+}
+}
+}
+}
+/**
+* Load a module from the javac state file.
+*/
+public Module loadModule(String l) {
+Module m = Module.load(l);
+modules.put(m.name(), m);
+return m;
+}
+/**
+* Load a package from the javac state file.
+*/
+public Package loadPackage(Module lastModule, String l) {
+Package p = Package.load(lastModule, l);
+lastModule.addPackage(p);
+packages.put(p.name(), p);
+return p;
+}
+/**
+* Load a source from the javac state file.
+*/
+public Source loadSource(Package lastPackage, String l, boolean is_generated) {
+Source s = Source.load(lastPackage, l, is_generated);
+lastPackage.addSource(s);
+sources.put(s.name(), s);
+return s;
+}
+/**
+* During an incremental compile we need to copy the old javac state
+* information about packages that were not recompiled.
+*/
+public void copyPackagesExcept(BuildState prev, Set<String> recompiled, Set<String> removed) {
+for (String pkg : prev.packages().keySet()) {
+// Do not copy recompiled or removed packages.
+if (recompiled.contains(pkg) || removed.contains(pkg)) continue;
+Module mnew = findModuleFromPackageName(pkg);
+Package pprev = prev.packages().get(pkg);
+mnew.addPackage(pprev);
+// Do not forget to update the flattened data.
+packages.put(pkg, pprev);
+}
+}
+}

Mercurial > jdk8-mips64-public > langtools / file comparison

comparison: src/share/classes/com/sun/tools/sjavac/BuildState.java

src/share/classes/com/sun/tools/sjavac/BuildState.java