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Function dmd.semantic3.checkClosure

Determine whether the given function will need to allocate a closure_ and verify that such an allocation is allowed under the current compilation settings.

bool checkClosure(
  FuncDeclaration fd
);

Whenever an error is emitted, every nested function that actually closes over a variable is listed in a supplemental diagnostic, together with the location of the captured variable’s declaration. (This extra walk is skipped when the compiler is gagged.)

See Also

  • FuncDeclaration.needsClosure
  • FuncDeclaration.setGC
  • FuncDeclaration.printGCUsage

Authors

Walter Bright

License

Boost License 1.0