GtkSharp/Source/generator/DESIGN
2017-09-06 18:36:01 +02:00

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Main Program
------------
CodeGenerator: Static class. Contains Main. It uses the Parser to load the
IGeneratable objects, validates them, and then calls the
IGeneratable.Generate() method on each of them.
GenerationInfo: Stores info passed in on the command line, such as the
assembly name and glue library name. Passed to
IGeneratable.Generate().
Parser: Reads the foo-api.xml file and creates IGeneratable objects
Statistics: Static class. Used by other classes to keep statistics on
generated classes
SymbolTable: Static class. Keeps track of the type hierarchy and the
mappings between C types and IGeneratable classes
IGeneratables
-------------
The IGeneratable interface is implemented by all classes that
represent types.
GenBase: Abstract base class for any api.xml element that will have its own
generated .cs file
CallbackGen: Handles <callback> elements by creating a public delegate type
for the public API (in NAME.cs), and an internal type that
wraps that delegate, to be passed as the actual unmanaged
callback (in NAMESPACESharp.NAMENative.cs)
ClassBase: Abstract base class for types that will be converted
to C# classes, structs, or interfaces
ClassGen: Handles <class> elements (static classes)
HandleBase: base class for wrapped IntPtr reference types.
OpaqueGen: Handles <boxed> and <struct> elements with the
"opaque" flag (by creating C# classes)
ObjectBase: base class for GObject/GInterface types
InterfaceGen: Handles <interface> elements
ObjectGen: Handles <object> elements
StructBase: Abstract base class for types that will be translated
to C# structs.
BoxedGen: Handles non-opaque <boxed> elements
StructGen: Handles non-opaque <struct> elements
EnumGen: Handles <enum> elements.
SimpleBase: Abstract base class for types which aren't generated from
xml like simple types or manually wrapped/implemented types.
ByRefGen: Handles struct types that must be passed into C code by
reference (at the moment, only GValue/GLib.Value)
ManualGen: Handles types that must be manually marshalled between
managed and unmanaged code (by handwritten classes such
as GLib.List)
MarshalGen: Handles types that must be manually marshalled between
managed and unmanaged code via special CallByName/FromNative
syntax (eg time_t<->DateTime, gunichar<->char)
OwnableGen: Handles ownable types.
SimpleGen: Handles types that can be simply converted from an
unmanaged type to a managed type (int, byte, short, etc...)
LPGen : marshals system specific long and "size" types.
LPUGen : marshals system specific unsigned long and "size" types.
ConstStringGen: Handles conversion between "const char *" and
System.String
StringGen: Handles conversion between non-const "char *" and
System.String
AliasGen: Handles <alias> elements. "Generates" type aliases by
ignoring them (eg, outputting "Gdk.Rectangle" wherever the
API calls for a GtkAllocation).
Other code-generating classes used by IGeneratables
---------------------------------------------------
ImportSignature: Represents a signature for an unmanaged method
MethodBase: Abstract base class for constructors, methods and virtual methods
Ctor: Handles <constructor> elements
Method: Handles <method> elements
VirtualMethod: Abstract class for virtual methods
GObjectVM: Handles virtual methods for objects
InterfaceVM: Handles virtual methods for interfaces
MethodBody: Used by Method and its subclasses
PropertyBase: Abstract base class for property-like elements
FieldBase: Abstract base class for field-like elements
ObjectField: Handles <field> elements in objects
StructField: Handles <field> elements in structs
StructABIField: Handles <fields> to generate ABI compatible structures
UnionABIField: Handles <union> to generate ABI compatible structures
ClassField: Handles <field> elements in classes
Property: Handles <property> elements
ChildProperty: Handles <childprop> elements
Signal: Handles <signal> elements
ManagedCallString: Represents a call to a managed method from a method that
has unmanaged data
Parameter: Represents a single parameter to a method
ErrorParameter: Represents an "out" parameter used to indicate an error
StructParameter: Represents a parameter that is a struct
ArrayParameter: Represents an parameter that is an array. Can be
null-terminated or not.
ArrayCountPair: Represents an array parameter for which the number of
elements is given by another parameter.
Parameters: Represents the list of parameters to a method
ReturnValue: Represents the return value of a method, virtual method or signal
SignalHandler: Used by Signal. Like CallbackGen, this creates an internal type
to wrap a signal-handler delegate.
Signature: Represents the signature of a method
VMSignature: Used by Signal. Represents the signature of a virtual method.