Classes
struct	Array
	The layout of the primitive `Array` class in MysoreScript. More...

struct	Class
	Struct holding metadata about a class. More...

struct	Closure
	The layout of all closures in MysoreScript. More...

struct	Method
	Methods in a class's method list. More...

struct	Object
	A generic MysoreScript object. More...

struct	String
	The primitive `String` class in MysoreScript. More...

Typedefs
typedef Object *	Obj
	Object pointer. More...

typedef uint32_t	Selector
	Selectors are unique identifiers for methods. More...

typedef Object (	CompiledMethod) (Object *, Selector,...)
	A compiled method is a function that takes an object (the receiver) and the selector as implicit arguments and then any other explicit arguments. More...

typedef Object (	ClosureInvoke) (Closure *,...)
	A compiled closure invoke function. More...

Functions
Selector	lookupSelector (const std::string &)
	Looks up the selector for a specified string value, registering a new value if this is the first time the mapping has been needed. More...

void	registerClass (const std::string &name, struct Class *cls)
	Register a newly constructed class. More...

struct Class *	lookupClass (const std::string &name)
	Look up an existing class. More...

Obj	newObject (struct Class *cls)
	Instantiate an object. More...

Method *	methodForSelector (Class *, Selector)
	Looks up the `Method` that should be invoked for the specified selector on this class. More...

Obj	callCompiledMethod (CompiledMethod m, Obj receiver, Selector sel, Obj *args, int argCount)
	Calls a compiled method, constructing the correct argument frame based on the arguments. More...

Obj	callCompiledClosure (ClosureInvoke m, Closure receiver, Obj args, int argCount)
	Calls a compiled closure from the specified argument list. More...

Obj	mysoreScriptAdd (Obj lhs, Obj rhs)
	Helper function called by compiled code for the + operator on objects that are not small (embedded in a pointer) integers. More...

Obj	mysoreScriptSub (Obj lhs, Obj rhs)
	Helper function called by compiled code for the - operator on objects that are not small (embedded in a pointer) integers. More...

Obj	mysoreScriptMul (Obj lhs, Obj rhs)
	Helper function called by compiled code for the * operator on objects that are not small (embedded in a pointer) integers. More...

Obj	mysoreScriptDiv (Obj lhs, Obj rhs)
	Helper function called by compiled code for the / operator on objects that are not small (embedded in a pointer) integers. More...

CompiledMethod	compiledMethodForSelector (Obj obj, Selector sel)
	Look up the compiled method to call for a specific selector. More...

bool	isInteger (Obj o)
	Is this object a small integer (lowest bit is 1, next two bits are 0). More...

intptr_t	getInteger (Obj o)
	Assuming that `o` is a small integer (an integer embedded in a pointer), return it as a C integer. More...

Obj	createSmallInteger (intptr_t i)
	Construct a small integer object from the given integer. More...

Variables
struct Class	StringClass
	The `String` class structure. More...

struct Class	FileClass
	The `File` class structure. More...

struct Class	ArrayClass
	The `Array` class structure. More...

struct Class	SmallIntClass
	The `SmallInt` (`Number`) class structure. More...

struct Class	ClosureClass
	The `Closure` class structure. More...

Typedef Documentation

§ ClosureInvoke

typedef Object*(* MysoreScript::ClosureInvoke) (Closure *,...)

A compiled closure invoke function.

This takes the closure as an implicit argument and then other explicit arguments.

Definition at line 80 of file runtime.hh.

§ CompiledMethod

typedef Object*(* MysoreScript::CompiledMethod) (Object *, Selector,...)

A compiled method is a function that takes an object (the receiver) and the selector as implicit arguments and then any other explicit arguments.

Definition at line 75 of file runtime.hh.

§ Obj

typedef Object* MysoreScript::Obj

Object pointer.

Objects are either pointers or small objects hidden inside the pointer.

Definition at line 33 of file runtime.hh.

§ Selector

typedef uint32_t MysoreScript::Selector

Selectors are unique identifiers for methods.

When a method name is registered, it is assigned a unique number.

Definition at line 70 of file runtime.hh.

Function Documentation

§ callCompiledClosure()

Obj MysoreScript::callCompiledClosure	(	ClosureInvoke	m,
		Closure *	receiver,
		Obj *	args,
		int	argCount
	)

Calls a compiled closure from the specified argument list.

Definition at line 656 of file runtime.cc.

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§ callCompiledMethod()

Obj MysoreScript::callCompiledMethod	(	CompiledMethod	m,
		Obj	receiver,
		Selector	sel,
		Obj *	args,
		int	argCount
	)

Calls a compiled method, constructing the correct argument frame based on the arguments.

Definition at line 632 of file runtime.cc.

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§ compiledMethodForSelector()

CompiledMethod MysoreScript::compiledMethodForSelector	(	Obj	obj,
		Selector	sel
	)

Look up the compiled method to call for a specific selector.

This is called by compiled code to perform method lookups. If a method has not yet been compiled, the Method structure should be initialised with a trampoline function that jumps back into the interpreter.

Definition at line 697 of file runtime.cc.

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§ createSmallInteger()

Obj MysoreScript::createSmallInteger ( intptr_t i )

inline

Construct a small integer object from the given integer.

Definition at line 59 of file runtime.hh.

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§ getInteger()

intptr_t MysoreScript::getInteger ( Obj o )

inline

Assuming that o is a small integer (an integer embedded in a pointer), return it as a C integer.

Definition at line 51 of file runtime.hh.

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§ isInteger()

bool MysoreScript::isInteger ( Obj o )

inline

Is this object a small integer (lowest bit is 1, next two bits are 0).

Definition at line 43 of file runtime.hh.

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§ lookupClass()

struct Class * MysoreScript::lookupClass ( const std::string & name )

Look up an existing class.

Definition at line 601 of file runtime.cc.

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§ lookupSelector()

Selector MysoreScript::lookupSelector ( const std::string & )

Looks up the selector for a specified string value, registering a new value if this is the first time the mapping has been needed.

Definition at line 553 of file runtime.cc.

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§ methodForSelector()

Method * MysoreScript::methodForSelector	(	Class *	cls,
		Selector	sel
	)

Looks up the Method that should be invoked for the specified selector on this class.

Definition at line 615 of file runtime.cc.

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§ mysoreScriptAdd()

Obj MysoreScript::mysoreScriptAdd	(	Obj	lhs,
		Obj	rhs
	)

Helper function called by compiled code for the + operator on objects that are not small (embedded in a pointer) integers.

Definition at line 681 of file runtime.cc.

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§ mysoreScriptDiv()

Obj MysoreScript::mysoreScriptDiv	(	Obj	lhs,
		Obj	rhs
	)

Helper function called by compiled code for the / operator on objects that are not small (embedded in a pointer) integers.

Definition at line 693 of file runtime.cc.

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§ mysoreScriptMul()

Obj MysoreScript::mysoreScriptMul	(	Obj	lhs,
		Obj	rhs
	)

Helper function called by compiled code for the * operator on objects that are not small (embedded in a pointer) integers.

Definition at line 689 of file runtime.cc.

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§ mysoreScriptSub()

Obj MysoreScript::mysoreScriptSub	(	Obj	lhs,
		Obj	rhs
	)

Helper function called by compiled code for the - operator on objects that are not small (embedded in a pointer) integers.

Definition at line 685 of file runtime.cc.

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§ newObject()

Obj MysoreScript::newObject ( struct Class * cls )

Instantiate an object.

This returns a new instance of the class with all of its instance variables set to null.

Definition at line 606 of file runtime.cc.

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§ registerClass()

void MysoreScript::registerClass	(	const std::string &	name,
		struct Class *	cls
	)

Register a newly constructed class.

Definition at line 596 of file runtime.cc.

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Variable Documentation

§ ArrayClass

struct Class MysoreScript::ArrayClass

Initial value:

=
{
    NULL,
    "Array",
    sizeof(ArrayMethods) / sizeof(Method),
    sizeof(ArrayIvars) / sizeof(char*),
    ArrayMethods,
    ArrayIvars
}

The Array class structure.

Definition at line 516 of file runtime.cc.

§ ClosureClass

struct Class MysoreScript::ClosureClass

Initial value:

=
{
    NULL,
    "Closure",
    0,
    0,
    nullptr,
    nullptr
}

The Closure class structure.

The class used for closures.

Definition at line 543 of file runtime.cc.

§ FileClass

struct Class MysoreScript::FileClass

Initial value:

=
{
    NULL,
    "File",
    sizeof(FileMethods) / sizeof(Method),
    sizeof(FileIvars) / sizeof(char*),
    FileMethods,
    FileIvars
}

The File class structure.

Definition at line 504 of file runtime.cc.

§ SmallIntClass

struct Class MysoreScript::SmallIntClass

Initial value:

=
{
    NULL,
    "Number",
    sizeof(NumberMethods) / sizeof(Method),
    0,
    NumberMethods,
    nullptr
}

The SmallInt (Number) class structure.

The class used for small integers.

This is distinct from Number because a future implementation may implement Number as both SmallInt and BigInt classes internally, which both appear as instances of the Number class.

Definition at line 531 of file runtime.cc.

§ StringClass

struct Class MysoreScript::StringClass

Initial value:

=
{
    NULL,
    "String",
    sizeof(StringMethods) / sizeof(Method),
    sizeof(StringIvars) / sizeof(char*),
    StringMethods,
    StringIvars
}

The String class structure.

The class used for strings.

Definition at line 492 of file runtime.cc.

Classes

Typedefs

Functions

Variables

Typedef Documentation

§ ClosureInvoke

§ CompiledMethod

§ Obj

§ Selector

Function Documentation

§ callCompiledClosure()

§ callCompiledMethod()

§ compiledMethodForSelector()

§ createSmallInteger()

§ getInteger()

§ isInteger()

§ lookupClass()

§ lookupSelector()

§ methodForSelector()

§ mysoreScriptAdd()

§ mysoreScriptDiv()

§ mysoreScriptMul()

§ mysoreScriptSub()

§ newObject()

§ registerClass()

Variable Documentation

§ ArrayClass

§ ClosureClass

§ FileClass

§ SmallIntClass

§ StringClass