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version 2.112.0

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dmd.opover

Handles operator overloading.

SpecificationOperator Overloading

Authors:
Walter Bright
License:
Boost License 1.0

Sourceopover.d

Documentationhttps://dlang.org/phobos/dmd_opover.html

Coveragehttps://codecov.io/gh/dlang/dmd/src/master/compiler/src/dmd/opover.d

@safe boolisCommutative(EXPop);
Determine if operands of binary op can be reversed to fit operator overload.
Objects*opToArg(Scope*sc, EXPop);
Helper function to turn operator into template argument list
ExpressionopOverloadCast(CastExpe, Scope*sc, Typeatt = null);
This is mostly the same as opOverloadUnary but has a different rewrite.
boolsuggestBinaryOverloads(BinExpe, Scope*sc);
If applicable, print an error relating to implementing / fixingopBinary functions.
Parameters:
BinExpebinary operation
Scope*scscope to tryopBinary!"" semantic in for error messages
Returns:
true when an error related toopBinary was printed
boolsuggestOpOpAssign(BinAssignExpexp, Scope*sc, Expressionparent);
If applicable, print an error relating to implementing / fixingopOpAssign oropUnary functions.
Parameters:
BinAssignExpexpbinary operation
Scope*scscope to tryopOpAssign!"" semantic in for error messages
Expressionparentifexp was lowered from thisPreExp orPostExp, mentionopUnary as well
Returns:
true when an error related toopOpAssign was printed
ExpressionopOverloadBinaryAssign(BinAssignExpe, Scope*sc, Type[2]aliasThisStop);
Operator overloading for op=
Expressionbuild_overload(Locloc, Scope*sc, Expressionethis, Expressionearg, Dsymbold);
Utility to build a function call out of this reference and argument.
Dsymbolsearch_function(ScopeDsymbolad, Identifierfuncid);
Search for function funcid in aggregate ad.
boolinferForeachAggregate(Scope*sc, boolisForeach, ref Expressionfeaggr, out Dsymbolsapply);
Figure out what is being foreach'd over by looking at the ForeachAggregate.
Parameters:
Scope*sccontext
boolisForeachtrue for foreach, false for foreach_reverse
ExpressionfeaggrForeachAggregate
Dsymbolsapplyset to function opApply/opApplyReverse, or delegate, or null. Overload resolution is not done.
Returns:
true if successfully figured it out; feaggr updated with semantic analysis. false for failed, which is an error.
boolinferApplyArgTypes(ForeachStatementfes, Scope*sc, ref Dsymbolsapply);
Given array of foreach parameters and an aggregate type, find best opApply overload, if any of the parameter types are missing, attempt to infer them from the aggregate type.
Parameters:
ForeachStatementfesthe foreach statement
Scope*sccontext
Dsymbolsapplynull or opApply or delegate, overload resolution has not been done. Do overload resolution on sapply.
Returns:
false for errors
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