Cobra Forums

Posted: **Sun Oct 26, 2008 8:57 am**

It seems (to me) that initializer syntax has a problem with litteral enum values, see example bellow:

enum StyleType
    Undefined
    OldFashioned
    Hype
    
class Model
    var _style 
    pro style from var
    
class Program
    def main is shared
        hypeStyle = StyleType(Hype)
        model = Model(style=StyleType(Hype)) #wont compile
        model = Model(style=hypeStyle) #compile

giving me

Code: Select all: fail.cobra(14): error: COBRA INTERNAL ERROR / AssertException / ; sourceSite = C:\home\dev\src\dotnet\projects\cobralanguage\Source\Node.cobra:592 in Node._transformTo for object PostCallExpr-sh(12214, didBindInh=false, didBindInt=false, didStartBindImp=true, didBindImp=false, token=Token(OPEN_CALL, 'StyleType(', 'StyleType', ln 14, col 23, fail.cobra), type=EnumDecl-mi(12199, name=StyleType, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didStartBindImp=true, didBindImp=true, token=Token(ENUM, 'enum', 'enum', ln 1, col 1, fail.cobra), 12199), 12214); info = 'superNode=PostCallExpr-sh(12217, didBindInh=false, didBindInt=false, didStartBindImp=true, isBindingImp=true, didBindImp=false, token=Token(OPEN_CALL, 'Model(', 'Model', ln 14, col 11, fail.cobra), type=nil, 12217), newNode=EnumCallExpr-sh(39103, didBindInh=false, didBindInt=false, didStartBindImp=true, didBindImp=true, token=Token(OPEN_CALL, 'StyleType(', 'StyleType', ln 14, col 23, fail.cobra), type=EnumDecl-mi(12199, name=StyleType, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didStartBindImp=true, didBindImp=true, token=Token(ENUM, 'enum', 'enum', ln 1, col 1, fail.cobra), 12199), 39103)'; this = PostCallExpr-de(12214, didBindInh=false, didBindInt=false, didStartBindImp=true, didBindImp=false, token=Token(OPEN_CALL, 'StyleType(', 'StyleType', ln 14, col 23, fail.cobra), type=EnumDecl-mi(12199, name=StyleType, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didStartBindImp=true, didBindImp=true, token=Token(ENUM, 'enum', 'enum', ln 1, col 1, fail.cobra), 12199), expr=IdentifierExpr-sh(12213, didBindInh=false, didBindInt=false, didStartBindImp=true, didBindImp=true, token=Token(OPEN_CALL, 'StyleType(', 'StyleType', ln 14, col 23, fail.cobra), name=StyleType, type=Class-mi(1382, name=Type, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token((EMPTY), '', nil, ln 1, col 1, (empty)), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 1382), definition=EnumDecl-mi(12199, name=StyleType, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didStartBindImp=true, didBindImp=true, token=Token(ENUM, 'enum', 'enum', ln 1, col 1, fail.cobra), 12199), 12213), args=['IdentifierExpr'-'sh'(12212, 'didBindInh'=false, 'didBindInt'=false, 'didBindImp'=false, 'token'=''Token'('ID', ''Hype'', ''Hype'', ln 14, col 33, 'fail.cobra')', 'name'='Hype', 'type'=nil, 'definition'=''EnumMember'-'mi'(12198, 'name'='Hype', 'didBindInh'=false, 'didBindInt'=false, 'didBindImp'=false, 'token'=''Token'('ID', ''Hype'', ''Hype'', ln 4, col 2, 'fail.cobra')', 'value'=nil, 12198)', 12212)], hasKeywordArg=false, isForAttribute=false, 12214); didReplace = false; Compilation failed - 1 error, 0 warnings Not running due to errors above.

Is it expected behaviour?

Thanks

EDIT: also, initializers won't work for member declaration, only for local variables, c# 3 to support this.

Posted: **Sun Oct 26, 2008 2:31 pm**

A "COBRA INTERNAL ERROR" is never an expected behavior! :-)

I'll investigate.

I'm not sure what your EDIT comment means. You should be able to do this in Cobra:

button = Button(parent=panel, text='Save', autoSize=true)

If that's not what you meant, please expand and/or provide an example.

Posted: **Sun Oct 26, 2008 3:24 pm**

About my edit, I meant you can't do this:

class Member
    var _value as int?
    pro value from var

class ClassName
    var member_ = Member(value=1)

class Program
    def main is shared
        instance = ClassName()

which give :

Code: Select all: a.cobra(5): error: COBRA INTERNAL ERROR / RequireException / ; sourceSite = C:\home\dev\src\dotnet\projects\cobralanguage\Source\Node.cobra:502 in BoxMember.bindImp for object Method-sh(22241, name=_ch_ext_init_12206, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, '_ch_ext_init_12206', 'ClassName', ln 5, col 7, a.cobra), name=_ch_ext_init_12206, isNames=['shared', 'private'], parentBox=Class-mi(12201, name=ClassName, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=false, didBindImp=false, token=Token(ID, 'ClassName', 'ClassName', ln 5, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12201), returnTypeNode=Class-mi(12196, name=Member, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, 'Member', 'Member', ln 1, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12196), returnType=Class-mi(12196, name=Member, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, 'Member', 'Member', ln 1, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12196), implementsType=nil, 22241); info = nil; this = Method-de(22241, name=_ch_ext_init_12206, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, '_ch_ext_init_12206', 'ClassName', ln 5, col 7, a.cobra), name=_ch_ext_init_12206, isNames=['shared', 'private'], parentBox=Class-mi(12201, name=ClassName, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=false, didBindImp=false, token=Token(ID, 'ClassName', 'ClassName', ln 5, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12201), returnTypeNode=Class-mi(12196, name=Member, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, 'Member', 'Member', ln 1, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12196), returnType=Class-mi(12196, name=Member, didStartBindInh=true, didBindInh=true, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, 'Member', 'Member', ln 1, col 7, a.cobra), didBindInh=true, isGeneric=false, isGenericDef=false, needsConstruction=false, 12196), implementsType=nil, isNames=['shared', 'private'], docString=, params=['Param'(22240, "'arg0'" ('ID'), 'arg0', 'int')], requirePart=RequirePart-sh(22254, didBindInh=false, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, '_ch_ext_init_12206', 'ClassName', ln 5, col 7, a.cobra), connectToken=nil, isImplicit=true, 22254), ensurePart=EnsurePart-sh(22255, didBindInh=false, didStartBindInt=true, didBindInt=true, didBindImp=false, token=Token(ID, '_ch_ext_init_12206', 'ClassName', ln 5, col 7, a.cobra), connectToken=nil, isImplicit=true, 22255), locals=['LocalVar'(22242, "'obj'" ('ID'), 'obj', 'Member')], stmts=['AssignExpr'-'sh'(22246, 'didBindInh'=false, 'didBindInt'=false, 'didBindImp'=false, 'token'=''Token'('ASSIGN', ''='', ''ClassName'', ln 5, col 7, 'a.cobra')', 'type'=nil, 'definition'=nil, 22246), 'AssignExpr'-'sh'(22251, 'didBindInh'=false, 'didBindInt'=false, 'didBindImp'=false, 'token'=''Token'('ASSIGN', ''='', ''ClassName'', ln 5, col 7, 'a.cobra')', 'type'=nil, 'definition'=nil, 22251), 'ReturnStmt'-'sh'(22253, 'didBindInh'=false, 'didBindInt'=false, 'didBindImp'=false, 'token'=''Token'('RETURN', ''return'', ''ClassName'', ln 5, col 7, 'a.cobra')', 22253)], genericParams=[], 22241); (not .compiler.isBindingInt or (this inherits Expr)) = false; not .compiler.isBindingInt = false; .compiler.isBindingInt = true; .compiler = Compiler(5); (this inherits Expr) = false; Compilation failed - 1 error, 0 warnings Not running due to errors above.

Posted: **Sun Oct 26, 2008 7:24 pm**

Both problems are fixed in the repository and locked down with test cases.

Nice catch. Thanks for the report.

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initializer won't work with enum values

initializer won't work with enum values

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Re: initializer won't work with enum values