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Code Issues Wiki Activity

Fix for 203050: [bindings] StackOverflowError resolving K&R function

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This commit is contained in:
Anton Leherbauer 2007-09-13 07:21:20 +00:00
parent 9497a4150a
commit 269734c953
2 changed files with 51 additions and 3 deletions
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42
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2KnRTests.java
View file

@ -7,6 +7,7 @@
*
* Contributors:
* IBM Rational Software - Initial API and implementation
* Anton Leherbauer (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.core.parser.tests.ast2;
@ -19,8 +20,10 @@ import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTElaboratedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTExpressionStatement;
import org.eclipse.cdt.core.dom.ast.IASTFieldReference;
import org.eclipse.cdt.core.dom.ast.IASTFunctionCallExpression;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
import org.eclipse.cdt.core.dom.ast.IASTIdExpression;
import org.eclipse.cdt.core.dom.ast.IASTLiteralExpression;
@ -654,4 +657,43 @@ public class AST2KnRTests extends AST2BaseTest {
assertTrue( stmts[2] instanceof IASTCompoundStatement );
assertTrue( stmts[3] instanceof IASTNullStatement );
}
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=203050
public void testBug203050() throws Exception {
StringBuffer buffer = new StringBuffer();
buffer.append("typedef long time_t;\n" + //$NON-NLS-1$
"\n" + //$NON-NLS-1$
"void (foo)(timep)\n" + //$NON-NLS-1$
" const time_t * const timep;\n" + //$NON-NLS-1$
"{\n" + //$NON-NLS-1$
" struct tm tmp;\n" + //$NON-NLS-1$
" bar(timep, &tmp);\n" + //$NON-NLS-1$
"}\n" + //$NON-NLS-1$
"int (bar)(timep, tmp)\n" + //$NON-NLS-1$
" const time_t * const timep;\n" + //$NON-NLS-1$
" struct tm * tmp;\n" + //$NON-NLS-1$
"{\n" + //$NON-NLS-1$
" return 0;\n" + //$NON-NLS-1$
"}\n"); //$NON-NLS-1$
IASTTranslationUnit tu = parse(buffer.toString(), ParserLanguage.C, true, true);
assertTrue( tu.getDeclarations()[0] instanceof IASTSimpleDeclaration );
assertTrue( tu.getDeclarations()[1] instanceof IASTFunctionDefinition );
assertTrue( tu.getDeclarations()[2] instanceof IASTFunctionDefinition );
IASTStatement[] stmts = ((IASTCompoundStatement)((IASTFunctionDefinition)tu.getDeclarations()[1]).getBody()).getStatements();
assertTrue( stmts[0] instanceof IASTDeclarationStatement );
assertTrue( stmts[1] instanceof IASTExpressionStatement );
IASTExpression expr= ((IASTExpressionStatement)stmts[1]).getExpression();
assertTrue(expr instanceof IASTFunctionCallExpression);
IASTIdExpression fnameExpr= (IASTIdExpression)((IASTFunctionCallExpression)expr).getFunctionNameExpression();
fnameExpr.getName().resolveBinding();
IASTName fname= ((IASTFunctionDefinition)tu.getDeclarations()[2]).getDeclarator().getName();
try {
fname.resolveBinding();
} catch (StackOverflowError e) {
fail(e.getMessage());
}
}
}

12
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/CFunction.java
View file

@ -70,10 +70,16 @@ public class CFunction extends PlatformObject implements IFunction, ICInternalFu
return null;
}
public void addDeclarator( IASTFunctionDeclarator fnDeclarator ){
updateParameterBindings( fnDeclarator );
if( fnDeclarator.getParent() instanceof IASTFunctionDefinition || fnDeclarator instanceof ICASTKnRFunctionDeclarator )
if( fnDeclarator.getParent() instanceof IASTFunctionDefinition || fnDeclarator instanceof ICASTKnRFunctionDeclarator ) {
if (definition == fnDeclarator) {
// recursion?
return;
}
updateParameterBindings( fnDeclarator );
definition = fnDeclarator;
else {
return;
} else {
updateParameterBindings( fnDeclarator );
if( declarators == null ){
declarators = new IASTStandardFunctionDeclarator[] { (IASTStandardFunctionDeclarator) fnDeclarator };
return;