Package org.ek9lang.compiler.phase2

Class CheckSuitableToExtend

java.lang.Object

org.ek9lang.compiler.common.RuleSupport

org.ek9lang.compiler.phase2.CheckSuitableToExtend

All Implemented Interfaces:

Function<org.antlr.v4.runtime.ParserRuleContext,Optional<ISymbol>>

final class CheckSuitableToExtend
extends RuleSupport
implements Function<org.antlr.v4.runtime.ParserRuleContext,Optional<ISymbol>>

Checks for a type is resolved and is suitable to be extended from (in basic terms). This does not include the 'allows only' graph that has to be done one the whole type hierarchy has been established.

Field Summary

Fields inherited from class org.ek9lang.compiler.common.RuleSupport

errorListener, symbolsAndScopes

Constructor Summary

Constructors

Constructor	Description
CheckSuitableToExtend(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener, List<ISymbol.SymbolGenus> genus, boolean issueErrorIfNotResolved)	Checks that the typedef/identifierReference passed in (when resolved) is suitable to be extended from.
CheckSuitableToExtend(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener, ISymbol.SymbolGenus genus, boolean issueErrorIfNotResolved)	Checks that the typedef/identifierReference passed in (when resolved) is suitable to be extended from.

Method Summary

Modifier and Type	Method	Description
Optional<ISymbol>	apply(org.antlr.v4.runtime.ParserRuleContext ctx)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Details

CheckSuitableToExtend

CheckSuitableToExtend(SymbolsAndScopes symbolsAndScopes,
 ErrorListener errorListener,
 ISymbol.SymbolGenus genus,
 boolean issueErrorIfNotResolved)

Checks that the typedef/identifierReference passed in (when resolved) is suitable to be extended from.

CheckSuitableToExtend

public CheckSuitableToExtend(SymbolsAndScopes symbolsAndScopes,
 ErrorListener errorListener,
 List<ISymbol.SymbolGenus> genus,
 boolean issueErrorIfNotResolved)

Checks that the typedef/identifierReference passed in (when resolved) is suitable to be extended from. Accepts multiple allowed genus. i.e. FUNCTION and FUNCTION_TRAIT.

Method Details

apply

public Optional<ISymbol> apply(org.antlr.v4.runtime.ParserRuleContext ctx)

Specified by:

apply in interface Function<org.antlr.v4.runtime.ParserRuleContext,Optional<ISymbol>>