[Mono-bugs] [Bug 475342] New: using 'super' instead of 'base' to call base constructor crashes compiler

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Thu Feb 12 14:44:12 EST 2009


           Summary: using 'super' instead of 'base' to call base
                    constructor crashes compiler
    Classification: Mono
           Product: Mono: Compilers
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: ijbema at fmf.nl
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:
Gecko/2009020911 Ubuntu/8.04 (hardy) Firefox/3.0.6

When you use super instead of base the compiler crashes (both mcs and gmcs).
Semi-minimal example:

public class Foo {
    public Foo(int a){}

public class ChildFoo:Foo {
    public ChildFoo(int a):super(a){}

Minimal example:

class Bar {Bar(int a):super(a){}}

Reproducible: Always

Steps to Reproduce:
Compile this program:

class Bar {Bar(int a):super(a){}}
Actual Results:  
System.InvalidCastException: Cannot cast from source type to destination type.
  at Mono.CSharp.CSharpParser.yyparse (yyInput yyLex) [0x00000] 
  at Mono.CSharp.CSharpParser.parse () [0x00000] 

Expected Results:  
Give a sensible error

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