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Code Issues Wiki Activity

Bug 260524 - Disallow problematic Eclipse variables

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This commit is contained in:
Anton Leherbauer 2009-01-12 15:27:39 +00:00
parent 00d8f03ce2
commit 356d9d373b
1 changed files with 47 additions and 8 deletions
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53
core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/cdtvariables/EclipseVariablesVariableSupplier.java
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@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2005, 2007 Intel Corporation and others.
* Copyright (c) 2005, 2008 Intel Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@ -14,10 +14,12 @@ import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Pattern;
import org.eclipse.cdt.core.cdtvariables.CdtVariable;
import org.eclipse.cdt.core.cdtvariables.CdtVariableException;
import org.eclipse.cdt.core.cdtvariables.ICdtVariable;
import org.eclipse.cdt.core.cdtvariables.ICdtVariableStatus;
import org.eclipse.cdt.utils.cdtvariables.ICdtVariableSupplier;
import org.eclipse.cdt.utils.cdtvariables.IVariableContextInfo;
import org.eclipse.core.runtime.CoreException;
@ -33,7 +35,10 @@ import org.eclipse.core.variables.VariablesPlugin;
* @since 3.0
*/
public class EclipseVariablesVariableSupplier implements ICdtVariableSupplier {
// private static final String VAR_PREFIX = "${"; //$NON-NLS-1$
private static final Pattern RESOURCE_VARIABLE_PATTERN= Pattern.compile("(project|resource|container)_(loc|path|name)"); //$NON-NLS-1$
// private static final String VAR_PREFIX = "${"; //$NON-NLS-1$
// private static final char VAR_SUFFIX = '}';
private static final char COLON = ':';
@ -73,13 +78,23 @@ public class EclipseVariablesVariableSupplier implements ICdtVariableSupplier {
@Override
public String getStringValue() throws CdtVariableException {
if(!fInitialized){
loadValue(fVariable);
fInitialized = true;
try {
if (!canExpandVariable(fVariable.getName(), fArgument)) {
final String expression= "${"+fName+"}"; //$NON-NLS-1$//$NON-NLS-2$
throw new CdtVariableException(ICdtVariableStatus.TYPE_MACRO_REFERENCE_INCORRECT,
"Illegal usage of Eclipse variable: " + expression,
null,
fVariable.getName(), expression, null);
}
loadValue(fVariable);
} finally {
fInitialized = true;
}
}
return fStringValue;
}
private void loadValue(IStringVariable var){
private void loadValue(IStringVariable var) throws CdtVariableException {
if(var instanceof IDynamicVariable){
IDynamicVariable dynamicVar = (IDynamicVariable)var;
if(fArgument == null || dynamicVar.supportsArgument()){
@ -156,8 +171,12 @@ public class EclipseVariablesVariableSupplier implements ICdtVariableSupplier {
IStringVariableManager mngr = VariablesPlugin.getDefault().getStringVariableManager();
IDynamicVariable vars[] = mngr.getDynamicVariables();
Map<String, IStringVariable> map = new HashMap<String, IStringVariable>();
for (IDynamicVariable var : vars)
map.put(var.getName(),var);
for (IDynamicVariable var : vars) {
final String name= var.getName();
if (!isDeadlockProneVariable(name)) {
map.put(name,var);
}
}
IValueVariable valVars[] = mngr.getValueVariables();
for (IValueVariable valVar : valVars)
@ -172,6 +191,26 @@ public class EclipseVariablesVariableSupplier implements ICdtVariableSupplier {
return macros;
}
/**
* Test for Eclipse variables with known deadlock issues.
* @param name variable name
* @return whether the variable is prone to deadlocks
*/
private static boolean isDeadlockProneVariable(String name) {
return RESOURCE_VARIABLE_PATTERN.matcher(name).matches()
|| name.endsWith("_prompt") //$NON-NLS-1$
|| name.equals("selected_text"); //$NON-NLS-1$
}
private static boolean canExpandVariable(String name, String argument) {
if (argument == null && RESOURCE_VARIABLE_PATTERN.matcher(name).matches()) {
return false;
}
if (name.endsWith("_prompt") || name.equals("selected_text")) { //$NON-NLS-1$//$NON-NLS-2$
return false;
}
return true;
}
// private String getMacroValue(String name){
// IStringVariableManager mngr = VariablesPlugin.getDefault().getStringVariableManager();
// try{