Library Reference

version 2.112.0

Internal API

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dmd.arrayop

Implement array operations, such asa[] = b[] + c[].

SpecificationArray Operations

Authors:

Walter Bright

License:

Boost License 1.0

Sourcearrayop.d

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

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

boolisArrayOpValid(Expressione);

Check that there are no uses of arrays without [].

ExpressionarrayOp(BinExpe, Scope*sc); ExpressionarrayOp(BinAssignExpe, Scope*sc);

Construct the array operation expression, call object.arrayOp!(tiargs)(args).

Encode operand types and operations into tiargs using reverse polish notation (RPN) to preserve precedence. Unary operations are prefixed with "u" (e.g. "u~"). Pass operand values (slices or scalars) as args.

Scalar expression sub-trees ofe are evaluated before calling into druntime to hoist them out of the loop. This is a valid evaluation order as the actual array operations have no side-effect.

Referenceshttps://github.com/dlang/dmd/blob/cdfadf8a18f474e6a1b8352af2541efe3e3467cc/druntime/src/object.d#L4694 https://github.com/dlang/dmd/blob/master/druntime/src/core/internal/array/operations.d

boolisArrayOpImplicitCast(TypeDArraytfrom, TypeDArraytto);

Some implicit casting can be performed by the arrayOp template.

Parameters:

TypeDArray`tfrom`	type converting from
TypeDArray`tto`	type converting to

Returns:

true if can be performed by arrayOp

@safe boolisUnaArrayOp(EXPop);

Test if expression is a unary array op.

@safe boolisBinArrayOp(EXPop);

Test if expression is a binary array op.

@safe boolisBinAssignArrayOp(EXPop);

Test if expression is a binary assignment array op.

boolisArrayOpOperand(Expressione);

Test if operand is a valid array op operand.

ErrorExparrayOpInvalidError(Expressione);

Print error message about invalid array operation.

Parameters:

Expressione expression with the invalid array operation

Returns:

instance of ErrorExp

Movatterモバイル変換

Library Reference

dmd.arrayop