Java Code Examples for com.sun.tools.javac.main.JavaCompiler#parse()
The following examples show how to use
com.sun.tools.javac.main.JavaCompiler#parse() .
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Example 1
Source File: T4910483.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
public static void main(String... args) { JavaCompiler compiler = JavaCompiler.instance(new Context()); compiler.keepComments = true; String testSrc = System.getProperty("test.src"); JavacFileManager fm = new JavacFileManager(new Context(), false, null); JavaFileObject f = fm.getJavaFileObject(testSrc + File.separatorChar + "T4910483.java"); JCTree.JCCompilationUnit cu = compiler.parse(f); JCTree classDef = cu.getTypeDecls().head; String commentText = cu.docComments.getCommentText(classDef); String expected = "Test comment abc*\\\\def"; // 4 '\' escapes to 2 in a string literal if (!expected.equals(commentText)) { throw new AssertionError("Incorrect comment text: [" + commentText + "], expected [" + expected + "]"); } }
Example 2
Source File: Utilities.java From netbeans with Apache License 2.0 | 4 votes |
public static Scope constructScope(CompilationInfo info, Map<String, TypeMirror> constraints, Iterable<? extends String> auxiliaryImports) { ScopeDescription desc = new ScopeDescription(constraints, auxiliaryImports); Scope result = (Scope) info.getCachedValue(desc); if (result != null) return result; StringBuilder clazz = new StringBuilder(); clazz.append("package $$;"); for (String i : auxiliaryImports) { clazz.append(i); } long count = inc++; String classname = "$$scopeclass$constraints$" + count; clazz.append("public class " + classname + "{"); for (Entry<String, TypeMirror> e : constraints.entrySet()) { if (e.getValue() != null) { clazz.append("private "); clazz.append(e.getValue().toString()); //XXX clazz.append(" "); clazz.append(e.getKey()); clazz.append(";\n"); } } clazz.append("private void test() {\n"); clazz.append("}\n"); clazz.append("}\n"); JavacTaskImpl jti = JavaSourceAccessor.getINSTANCE().getJavacTask(info); Context context = jti.getContext(); JavaCompiler compiler = JavaCompiler.instance(context); Modules modules = Modules.instance(context); Log log = Log.instance(context); NBResolve resolve = NBResolve.instance(context); Annotate annotate = Annotate.instance(context); Names names = Names.instance(context); Symtab syms = Symtab.instance(context); Log.DiagnosticHandler discardHandler = new Log.DiscardDiagnosticHandler(compiler.log); JavaFileObject jfo = FileObjects.memoryFileObject("$", "$", new File("/tmp/$$scopeclass$constraints$" + count + ".java").toURI(), System.currentTimeMillis(), clazz.toString()); try { resolve.disableAccessibilityChecks(); if (compiler.isEnterDone()) { annotate.blockAnnotations(); // try { // Field f = compiler.getClass().getDeclaredField("enterDone"); // f.setAccessible(true); // f.set(compiler, false); // } catch (Throwable t) { // Logger.getLogger(Utilities.class.getName()).log(Level.FINE, null, t); // } //was: // compiler.resetEnterDone(); } JCCompilationUnit cut = compiler.parse(jfo); ClassSymbol enteredClass = syms.enterClass(modules.getDefaultModule(), names.fromString("$$." + classname)); modules.enter(com.sun.tools.javac.util.List.of(cut), enteredClass); compiler.enterTrees(com.sun.tools.javac.util.List.of(cut)); Todo todo = compiler.todo; ListBuffer<Env<AttrContext>> defer = new ListBuffer<Env<AttrContext>>(); while (todo.peek() != null) { Env<AttrContext> env = todo.remove(); if (env.toplevel == cut) compiler.attribute(env); else defer = defer.append(env); } todo.addAll(defer); Scope res = new ScannerImpl().scan(cut, info); info.putCachedValue(desc, res, CacheClearPolicy.ON_SIGNATURE_CHANGE); return res; } finally { resolve.restoreAccessbilityChecks(); log.popDiagnosticHandler(discardHandler); } }