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# dmd.aggregate

Compiler implementation of the D programming language.
Authors:
Walter Bright
License:
Boost License 1.0

Source aggregate.d

Documentation https://dlang.org/phobos/dmd_aggregate.html

Coverage https://codecov.io/gh/dlang/dmd/src/master/src/dmd/aggregate.d

abstract class `AggregateDeclaration`: dmd.dsymbol.ScopeDsymbol;
  Scope* `newScope`(Scope* `sc`);
    Create a new scope from `sc`. semantic, semantic2 and semantic3 will use this for aggregate members.
  final bool `determineFields`();
    Find all instance fields, then push them into fields.
    Runs semantic() for all instance field variables, but also the field types can remain yet not resolved forward references, except direct recursive definitions. After the process sizeok is set to Sizeok.fwd.
    Returns:
    `false` if any errors occur.
  final bool `determineSize`(Loc `loc`);
    Collect all instance fields, then determine instance size.
    Returns:
    `false` if failed to determine the size.
  final bool `checkOverlappedFields`();
    Calculate field[i].overlapped and overlapUnsafe, and check that all of explicit field initializers have unique memory space on instance.
    Returns:
    `true` if any errors happen.
  final bool `fill`(Loc `loc`, Expressions* `elements`, bool `ctorinit`);
    Fill out remainder of `elements`[] with default initializers for fields[].
    Parameters:

    Loc `loc` | location
    Expressions* `elements` | explicit arguments which given to construct object.
    bool `ctorinit` | `true` if the `elements` will be used for default initialization.

    Returns:
    `false` if any errors occur. Otherwise, returns `true` and the missing arguments will be pushed in `elements`[].
  static pure nothrow @safe void `alignmember`(structalign_t `alignment`, uint `size`, uint* `poffset`);
    Do byte or word `alignment` as necessary. Align sizes of 0, as we may not know array sizes yet.
    Parameters:

    structalign_t `alignment` | struct `alignment` that is in effect
    uint `size` | `alignment` requirement of field
    uint* `poffset` | pointer to offset to be aligned

  static uint `placeField`(uint* `nextoffset`, uint `memsize`, uint `memalignsize`, structalign_t `alignment`, uint* `paggsize`, uint* `paggalignsize`, bool `isunion`);
    Place a member (mem) into an aggregate (agg), which can be a struct, union or class
    Returns:
    offset to place field at
    `nextoffset`: next location in aggregate `memsize`: size of member `memalignsize`: natural `alignment` of member `alignment`: `alignment` in effect for this member `paggsize`: size of aggregate (updated) `paggalignsize`: `alignment` of aggregate (updated) `isunion`: the aggregate is a union
  final bool `isNested`();
    Returns `true` if there's an extra member which is the 'this' pointer to the enclosing context (enclosing aggregate or function)
  final Dsymbol `searchCtor`();
    Look for constructor declaration.

Copyright © 1999-2018 by the D Language Foundation | Page generated by Ddoc on Sat Apr 14 16:39:01 2018