--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.compiler.problem;
+
+import org.eclipse.jdt.core.compiler.IProblem;
+import org.eclipse.jdt.internal.compiler.CompilationResult;
+import org.eclipse.jdt.internal.compiler.IErrorHandlingPolicy;
+import org.eclipse.jdt.internal.compiler.IProblemFactory;
+import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
+import org.eclipse.jdt.internal.compiler.impl.ReferenceContext;
+
+/*
+ * Compiler error handler, responsible to determine whether
+ * a problem is actually a warning or an error; also will
+ * decide whether the compilation task can be processed further or not.
+ *
+ * Behavior : will request its current policy if need to stop on
+ * first error, and if should proceed (persist) with problems.
+ */
+
+public class ProblemHandler implements ProblemSeverities {
+
+ public final static String[] NoArgument = new String[0];
+
+ final public IErrorHandlingPolicy policy;
+ public final IProblemFactory problemFactory;
+ public final CompilerOptions options;
+/*
+ * Problem handler can be supplied with a policy to specify
+ * its behavior in error handling. Also see static methods for
+ * built-in policies.
+ *
+ */
+public ProblemHandler(IErrorHandlingPolicy policy, CompilerOptions options, IProblemFactory problemFactory) {
+ this.policy = policy;
+ this.problemFactory = problemFactory;
+ this.options = options;
+}
+/*
+ * Given the current configuration, answers which category the problem
+ * falls into:
+ * Error | Warning | Ignore
+ */
+public int computeSeverity(int problemId){
+
+ return Error; // by default all problems are errors
+}
+public IProblem createProblem(
+ char[] fileName,
+ int problemId,
+ String[] problemArguments,
+ String[] messageArguments,
+ int severity,
+ int problemStartPosition,
+ int problemEndPosition,
+ int lineNumber) {
+
+ return this.problemFactory.createProblem(
+ fileName,
+ problemId,
+ problemArguments,
+ messageArguments,
+ severity,
+ problemStartPosition,
+ problemEndPosition,
+ lineNumber);
+}
+public void handle(
+ int problemId,
+ String[] problemArguments,
+ String[] messageArguments,
+ int severity,
+ int problemStartPosition,
+ int problemEndPosition,
+ ReferenceContext referenceContext,
+ CompilationResult unitResult) {
+
+ if (severity == Ignore)
+ return;
+
+ // if no reference context, we need to abort from the current compilation process
+ if (referenceContext == null) {
+ if ((severity & Error) != 0) { // non reportable error is fatal
+ IProblem problem = this.createProblem(null, problemId, problemArguments, messageArguments, severity, 0, 0, 0);
+ throw new AbortCompilation(null, problem);
+ } else {
+ return; // ignore non reportable warning
+ }
+ }
+
+ IProblem problem =
+ this.createProblem(
+ unitResult.getFileName(),
+ problemId,
+ problemArguments,
+ messageArguments,
+ severity,
+ problemStartPosition,
+ problemEndPosition,
+ problemStartPosition >= 0
+ ? searchLineNumber(unitResult.lineSeparatorPositions, problemStartPosition)
+ : 0);
+ if (problem == null) return; // problem couldn't be created, ignore
+
+ switch (severity & Error) {
+ case Error :
+ this.record(problem, unitResult, referenceContext);
+ referenceContext.tagAsHavingErrors();
+
+ // should abort ?
+ int abortLevel;
+ if ((abortLevel =
+ (this.policy.stopOnFirstError() ? AbortCompilation : severity & Abort)) != 0) {
+
+ referenceContext.abort(abortLevel, problem);
+ }
+ break;
+ case Warning :
+ this.record(problem, unitResult, referenceContext);
+ break;
+ }
+}
+/**
+ * Standard problem handling API, the actual severity (warning/error/ignore) is deducted
+ * from the problem ID and the current compiler options.
+ */
+public void handle(
+ int problemId,
+ String[] problemArguments,
+ String[] messageArguments,
+ int problemStartPosition,
+ int problemEndPosition,
+ ReferenceContext referenceContext,
+ CompilationResult unitResult) {
+
+ this.handle(
+ problemId,
+ problemArguments,
+ messageArguments,
+ this.computeSeverity(problemId), // severity inferred using the ID
+ problemStartPosition,
+ problemEndPosition,
+ referenceContext,
+ unitResult);
+}
+public void record(IProblem problem, CompilationResult unitResult, ReferenceContext referenceContext) {
+ unitResult.record(problem, referenceContext);
+}
+/**
+ * Search the line number corresponding to a specific position
+ */
+public static final int searchLineNumber(int[] startLineIndexes, int position) {
+ if (startLineIndexes == null)
+ return 1;
+ int length = startLineIndexes.length;
+ if (length == 0)
+ return 1;
+ int g = 0, d = length - 1;
+ int m = 0;
+ while (g <= d) {
+ m = (g + d) /2;
+ if (position < startLineIndexes[m]) {
+ d = m-1;
+ } else if (position > startLineIndexes[m]) {
+ g = m+1;
+ } else {
+ return m + 1;
+ }
+ }
+ if (position < startLineIndexes[m]) {
+ return m+1;
+ }
+ return m+2;
+}
+}
projects / org.ibex.tool.git / blobdiff