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# dmd.dstruct

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

Source dstruct.d

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

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

FuncDeclaration `search_toString`(StructDeclaration `sd`);
  Search sd for a member function of the form: extern (D) string toString();
  Parameters:

  StructDeclaration `sd` | struct declaration to search

  Returns:
  FuncDeclaration of toString() if found, null if not
void `semanticTypeInfo`(Scope* `sc`, Type `t`);
  Request additional semantic analysis for TypeInfo generation.
  Parameters:

  Scope* `sc` | context
  Type `t` | type that TypeInfo is being generated for

class `StructDeclaration`: dmd.aggregate.AggregateDeclaration;
  All struct declarations are an instance of this.
  final bool `fit`(ref const Loc `loc`, Scope* `sc`, Expressions* `elements`, Type `stype`);
    Fit elements[] to the corresponding types of the struct's fields.
    Parameters:

    Loc `loc` | location to use for error messages
    Scope* `sc` | context
    Expressions* `elements` | explicit arguments used to construct object
    Type `stype` | the constructed object type.

    Returns:
    false if any errors occur, otherwise true and elements[] are rewritten for the output.
  final bool `isPOD`();
    Determine if struct is POD (Plain Old Data).
    POD is defined as:
    1. not nested
    2. no postblits, destructors, or assignment operators
    3. no ref fields or fields that are themselves non-POD
    The idea being these are compatible with C structs.
    Returns:
    true if struct is POD
class `UnionDeclaration`: dmd.dstruct.StructDeclaration;
  Unions are a variation on structs.

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