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# ddmd.aggregate

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

Source: aggregate.d

abstract class `AggregateDeclaration`: ddmd.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 reamin yet not resolved forward references, except direct recursive definitions. After the process sizeok is set to SIZEOKfwd.
    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 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.

    alignment: struct `alignment` that is in effect

    size: `alignment` requirement of field

  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 © 1999-2017 by the D Language Foundation | Page generated by Ddoc on Mon Oct 9 11:31:23 2017