352 |
352 |
353 public Symbol getSymbol() { |
353 public Symbol getSymbol() { |
354 return descSym; |
354 return descSym; |
355 } |
355 } |
356 |
356 |
357 public Type getType(Type origin) { |
357 public Type getType(Type site) { |
358 return memberType(origin, descSym); |
358 if (capture(site) != site) { |
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359 Type formalInterface = site.tsym.type; |
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360 ListBuffer<Type> typeargs = ListBuffer.lb(); |
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361 List<Type> actualTypeargs = site.getTypeArguments(); |
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362 //simply replace the wildcards with its bound |
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363 for (Type t : formalInterface.getTypeArguments()) { |
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364 if (actualTypeargs.head.hasTag(WILDCARD)) { |
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365 WildcardType wt = (WildcardType)actualTypeargs.head; |
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366 typeargs.append(wt.type); |
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367 } else { |
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368 typeargs.append(actualTypeargs.head); |
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369 } |
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370 actualTypeargs = actualTypeargs.tail; |
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371 } |
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372 site = subst(formalInterface, formalInterface.getTypeArguments(), typeargs.toList()); |
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373 if (!chk.checkValidGenericType(site)) { |
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374 //if the inferred functional interface type is not well-formed, |
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375 //or if it's not a subtype of the original target, issue an error |
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376 throw failure(diags.fragment("no.suitable.functional.intf.inst", site)); |
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377 } |
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378 } |
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379 return memberType(site, descSym); |
359 } |
380 } |
360 } |
381 } |
361 |
382 |
362 class Entry { |
383 class Entry { |
363 final FunctionDescriptor cachedDescRes; |
384 final FunctionDescriptor cachedDescRes; |
546 * Is given type a functional interface? |
567 * Is given type a functional interface? |
547 */ |
568 */ |
548 public boolean isFunctionalInterface(TypeSymbol tsym) { |
569 public boolean isFunctionalInterface(TypeSymbol tsym) { |
549 try { |
570 try { |
550 findDescriptorSymbol(tsym); |
571 findDescriptorSymbol(tsym); |
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572 return true; |
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573 } catch (FunctionDescriptorLookupError ex) { |
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574 return false; |
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575 } |
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576 } |
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577 |
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578 public boolean isFunctionalInterface(Type site) { |
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579 try { |
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580 findDescriptorType(site); |
551 return true; |
581 return true; |
552 } catch (FunctionDescriptorLookupError ex) { |
582 } catch (FunctionDescriptorLookupError ex) { |
553 return false; |
583 return false; |
554 } |
584 } |
555 } |
585 } |