Unity-Technologies
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emscripten
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Refactoring preparatory to code clean-up (no functional changes, all tests pass).

This commit is contained in:
Bill Welden 2012-12-31 07:40:08 -08:00 коммит произвёл Jukka Jylänki
Родитель fa4795fe6c
Коммит 55c72d46d7
2 изменённых файлов: 322 добавлений и 273 удалений
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595
src/embind/embind.js
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@ -3,6 +3,10 @@
/*global FUNCTION_TABLE, HEAP32*/
/*global Pointer_stringify, writeStringToMemory*/
/*global __emval_register, _emval_handle_array, __emval_decref*/
/*global ___getDynamicPointerType: false*/
/*global ___dynamicPointerCast: false*/
/*global ___typeName:false*/
/*global ___staticPointerCast: false*/
function exposePublicSymbol(name, value) {
if (Module.hasOwnProperty(name)) {
@ -32,112 +36,133 @@ function _embind_repr(v) {
var typeRegistry = {};
function registerType(type, name, info) {
function registerType(type, name, registeredInstance) {
if (!type) {
throw new BindingError('type "' + name + '" must have a positive integer typeid pointer');
}
if (typeRegistry.hasOwnProperty(type)) {
throw new BindingError("Cannot register type '" + name + "' twice");
}
typeRegistry[type] = info;
registeredInstance.type = type;
registeredInstance.name = name;
typeRegistry[type] = registeredInstance;
}
function RegisteredVoid() {
}
RegisteredVoid.prototype.fromWireType = function() {
return undefined;
};
function __embind_register_void(voidType, name) {
name = Pointer_stringify(name);
registerType(voidType, name, {
name: name,
fromWireType: function() {
return undefined;
}
});
registerType(voidType, name, new RegisteredVoid());
}
function __embind_register_bool(boolType, name, trueValue, falseValue) {
name = Pointer_stringify(name);
registerType(boolType, name, {
name: name,
toWireType: function(destructors, o) {
return o ? trueValue : falseValue;
},
fromWireType: function(wt) {
function RegisteredBool(trueValue, falseValue) {
this.trueValue = trueValue;
this.falseValue = falseValue;
}
RegisteredBool.prototype.toWireType = function(destructors, o) {
return o ? this.trueValue : this.falseValue;
};
RegisteredBool.prototype.fromWireType = function(wt) {
// ambiguous emscripten ABI: sometimes return values are
// true or false, and sometimes integers (0 or 1)
return !!wt;
},
});
};
function __embind_register_bool(boolType, name, trueValue, falseValue) {
name = Pointer_stringify(name);
registerType(boolType, name, new RegisteredBool(trueValue, falseValue));
}
function RegisteredInteger() {
}
RegisteredInteger.prototype.toWireType = function(destructors, value) {
if (typeof value !== "number") {
throw new TypeError('Cannot convert "' + _embind_repr(value) + '" to ' + this.name);
}
return value | 0;
};
RegisteredInteger.prototype.fromWireType = function(value) {
return value;
};
function __embind_register_integer(primitiveType, name) {
name = Pointer_stringify(name);
registerType(primitiveType, name, {
name: name,
toWireType: function(destructors, value) {
if (typeof value !== "number") {
throw new TypeError('Cannot convert "' + _embind_repr(value) + '" to ' + name);
}
return value | 0;
},
fromWireType: function(value) {
return value;
}
});
registerType(primitiveType, name, new RegisteredInteger());
}
function RegisteredFloat() {
}
RegisteredFloat.prototype.toWireType = function(destructors, value) {
if (typeof value !== "number") {
throw new TypeError('Cannot convert "' + _embind_repr(value) + '" to ' +this.name);
}
return value;
};
RegisteredFloat.prototype.fromWireType = function(value) {
return value;
};
function __embind_register_float(primitiveType, name) {
name = Pointer_stringify(name);
registerType(primitiveType, name, {
name: name,
toWireType: function(destructors, value) {
if (typeof value !== "number") {
throw new TypeError('Cannot convert "' + _embind_repr(value) + '" to ' + name);
}
return value;
},
fromWireType: function(value) {
return value;
}
});
registerType(primitiveType, name, new RegisteredFloat());
}
function RegisteredString(stringType, name) {
}
RegisteredString.prototype.toWireType = function(destructors, value) {
var ptr = _malloc(value.length + 1);
writeStringToMemory(value, ptr);
destructors.push(_free);
destructors.push(ptr);
return ptr;
};
RegisteredString.prototype.fromWireType = function(value) {
var rv = Pointer_stringify(value);
_free(value);
return rv;
};
function __embind_register_cstring(stringType, name) {
name = Pointer_stringify(name);
registerType(stringType, name, {
name: name,
toWireType: function(destructors, value) {
var ptr = _malloc(value.length + 1);
writeStringToMemory(value, ptr);
destructors.push(_free);
destructors.push(ptr);
return ptr;
},
fromWireType: function(value) {
var rv = Pointer_stringify(value);
_free(value);
return rv;
}
});
registerType(stringType, name, new RegisteredString());
}
function RegisteredEmval() {
}
RegisteredEmval.prototype.toWireType = function(destructors, value) {
return __emval_register(value);
};
RegisteredEmval.prototype.fromWireType = function(handle) {
var rv = _emval_handle_array[handle].value;
__emval_decref(handle);
return rv;
};
function __embind_register_emval(emvalType, name) {
name = Pointer_stringify(name);
registerType(emvalType, name, {
name: name,
toWireType: function(destructors, value) {
return __emval_register(value);
},
fromWireType: function(handle) {
var rv = _emval_handle_array[handle].value;
__emval_decref(handle);
return rv;
}
});
registerType(emvalType, name, new RegisteredEmval());
}
var BindingError = Error;
/** @expose */
Module.BindingError = BindingError;
/*global ___typeName:false*/
function typeName(type) {
return Pointer_stringify(___typeName(type));
}
@ -183,7 +208,7 @@ function makeInvoker(name, argCount, argTypes, invoker, fn) {
args[i] = argTypes[i].toWireType(destructors, arguments[i-1]);
}
var rv = invoker.apply(null, args);
if (argTypes[0].hasOwnProperty('fromWireTypeAutoDowncast')) {
if (argTypes[0].fromWireTypeAutoDowncast) {
rv = argTypes[0].fromWireTypeAutoDowncast(rv);
} else {
rv = argTypes[0].fromWireType(rv);
@ -200,39 +225,41 @@ function __embind_register_function(name, argCount, argTypes, invoker, fn) {
exposePublicSymbol(name, makeInvoker(name, argCount, argTypes, invoker, fn));
}
function RegisteredTuple(constructor, destructor) {
this.constructor = constructor;
this.destructor = destructor;
this.elements = [];
}
RegisteredTuple.prototype.toWireType = function(destructors, o) {
var len = this.elements.length;
if (len !== o.length) {
throw new TypeError("Incorrect number of tuple elements");
}
var ptr = this.constructor();
for (var i = 0; i < len; ++i) {
this.elements[i].write(ptr, o[i]);
}
destructors.push(this.destructor);
destructors.push(ptr);
return ptr;
};
RegisteredTuple.prototype.fromWireType = function(ptr) {
var len = this.elements.length;
var rv = new Array(len);
for (var i = 0; i < len; ++i) {
rv[i] = this.elements[i].read(ptr);
}
this.destructor(ptr);
return rv;
};
function __embind_register_tuple(tupleType, name, constructor, destructor) {
name = Pointer_stringify(name);
constructor = FUNCTION_TABLE[constructor];
destructor = FUNCTION_TABLE[destructor];
var elements = [];
registerType(tupleType, name, {
name: name,
elements: elements,
fromWireType: function(ptr) {
var len = elements.length;
var rv = new Array(len);
for (var i = 0; i < len; ++i) {
rv[i] = elements[i].read(ptr);
}
destructor(ptr);
return rv;
},
toWireType: function(destructors, o) {
var len = elements.length;
if (len !== o.length) {
throw new TypeError("Incorrect number of tuple elements");
}
var ptr = constructor();
for (var i = 0; i < len; ++i) {
elements[i].write(ptr, o[i]);
}
destructors.push(destructor);
destructors.push(ptr);
return ptr;
}
});
registerType(tupleType, name, new RegisteredTuple(constructor, destructor));
}
function copyMemberPointer(memberPointer, memberPointerSize) {
@ -302,6 +329,38 @@ function __embind_register_tuple_element_accessor(
});
}
function RegisteredStruct(constructor, destructor) {
this.constructor = constructor;
this.destructor = destructor;
this.fields = {};
}
RegisteredStruct.prototype.toWireType = function(destructors, o) {
var fields = this.fields;
for (var fieldName in fields) {
if (!(fieldName in o)) {
throw new TypeError('Missing field');
}
}
var ptr = this.constructor();
for (fieldName in fields) {
fields[fieldName].write(ptr, o[fieldName]);
}
destructors.push(this.destructor);
destructors.push(ptr);
return ptr;
};
RegisteredStruct.prototype.fromWireType = function(ptr) {
var fields = this.fields;
var rv = {};
for (var i in fields) {
rv[i] = fields[i].read(ptr);
}
this.destructor(ptr);
return rv;
};
function __embind_register_struct(
structType,
name,
@ -312,33 +371,7 @@ function __embind_register_struct(
constructor = FUNCTION_TABLE[constructor];
destructor = FUNCTION_TABLE[destructor];
registerType(structType, name, {
fields: {},
fromWireType: function(ptr) {
var fields = this.fields;
var rv = {};
for (var i in fields) {
rv[i] = fields[i].read(ptr);
}
destructor(ptr);
return rv;
},
toWireType: function(destructors, o) {
var fields = this.fields;
for (var fieldName in fields) {
if (!(fieldName in o)) {
throw new TypeError('Missing field');
}
}
var ptr = constructor();
for (var fieldName in fields) {
fields[fieldName].write(ptr, o[fieldName]);
}
destructors.push(destructor);
destructors.push(ptr);
return ptr;
}
});
registerType(structType, name, new RegisteredStruct(constructor, destructor));
}
function __embind_register_struct_field(
@ -369,7 +402,69 @@ function __embind_register_struct_field(
};
}
/*global ___dynamicPointerCast: false*/
function RegisteredSmartPointer(getPointee, Handle, destructor, isPolymorphic, pointeeType) {
this.getPointee = getPointee;
this.Handle = Handle;
this.destructor = destructor;
this.isPolymorphic = isPolymorphic;
this.pointeeType = pointeeType;
}
RegisteredSmartPointer.prototype.toWireType = function(destructors, o) {
if (null === o) {
return 0;
} else {
return o.smartPointer;
}
};
RegisteredSmartPointer.prototype.fromWireType = function(ptr) {
if (!this.getPointee(ptr)) {
this.destructor(ptr);
return null;
}
return new this.Handle(ptr);
};
RegisteredSmartPointer.prototype.fromWireTypeAutoDowncast = function(ptr) {
if (!this.getPointee(ptr)) {
this.destructor(ptr);
return null;
}
if (this.isPolymorphic) {
// todo: clean up this code
var pointee = this.getPointee(ptr);
var toType = ___getDynamicPointerType(pointee);
var toTypeImpl = null;
if (toType === null || toType === this.pointeeType) {
return new this.Handle(ptr);
}
// todo: getDerivationPath is expensive -- cache the result
var derivation = Module.__getDerivationPath(toType, this.pointeeType);
var candidate = null;
for (var i = 0; i < derivation.size(); i++) {
candidate = derivation.at(i);
toTypeImpl = typeRegistry[candidate];
if (toTypeImpl) {
break;
}
}
derivation.delete();
if (toTypeImpl === null) {
return new this.Handle(ptr);
}
var toTypePointerImpl = requireRegisteredType(toTypeImpl.smartPointerType);
// todo: need to clone the ptr here (really??)
var castPtr = toTypePointerImpl.fromWireType(ptr);
// todo: do we really need ___dynamicPointerCast here? We know what type we're starting with.
castPtr.ptr = ___dynamicPointerCast(pointee, candidate);
// todo: we need to release the pre-cast pointer, don't we? how did this get past the tests?
return castPtr;
} else {
return new this.Handle(ptr);
}
};
function __embind_register_smart_ptr(
pointerType,
pointeeType,
@ -421,62 +516,58 @@ function __embind_register_smart_ptr(
this.ptr = undefined;
};
registerType(pointerType, name, {
name: name,
Handle: Handle,
fromWireTypeAutoDowncast: function(ptr) {
if (!getPointee(ptr)) {
destructor(ptr);
return null;
}
if (isPolymorphic) {
// todo: clean up this code
var pointee = getPointee(ptr);
var toType = ___getDynamicPointerType(pointee);
var toTypeImpl = null;
if (toType === null || toType === pointeeType) {
return new Handle(ptr);
}
// todo: getDerivationPath is expensive -- cache the result
var derivation = Module.__getDerivationPath(toType, pointeeType);
var candidate = null;
for (var i = 0; i < derivation.size(); i++) {
candidate = derivation.at(i);
toTypeImpl = typeRegistry[candidate];
if (toTypeImpl) {
break;
}
}
derivation.delete();
if (toTypeImpl === null) {
return new Handle(ptr);
}
var toTypePointerImpl = requireRegisteredType(toTypeImpl.smartPointerType);
// todo: need to clone the ptr here (really??)
var castPtr = toTypePointerImpl.fromWireType(ptr);
// todo: do we really need ___dynamicPointerCast here? We know what type we're starting with.
castPtr.ptr = ___dynamicPointerCast(pointee, candidate);
// todo: we need to release the pre-cast pointer, don't we? how did this get past the tests?
return castPtr;
} else {
return new Handle(ptr);
}
},
fromWireType: function(ptr) {
if (!getPointee(ptr)) {
destructor(ptr);
return null;
}
return new Handle(ptr);
},
toWireType: function(destructors, o) {
if (null === o) {
return 0;
} else {
return o.smartPointer;
registerType(pointerType, name, new RegisteredSmartPointer(getPointee, Handle, destructor, isPolymorphic, pointeeType));
}
function RegisteredRawPointer(isPolymorphic, classType, Handle) {
this.isPolymorphic = isPolymorphic;
this.classType = classType;
this.Handle = Handle;
}
RegisteredRawPointer.prototype.toWireType = function(destructors, o) {
return o.ptr;
};
RegisteredRawPointer.prototype.fromWireType = function(ptr) {
return new this.Handle(ptr);
};
RegisteredRawPointer.prototype.fromWireTypeAutoDowncast = function(ptr) {
if (this.isPolymorphic) {
var toType = ___getDynamicPointerType(ptr);
var toTypeImpl = null;
if (toType === null || toType === this.pointerType) {
return new this.Handle(ptr);
}
var derivation = Module.__getDerivationPath(toType, this.classType);
var candidate = null;
for (var i = 0; i < derivation.size(); i++) {
candidate = derivation.at(i);
toTypeImpl = typeRegistry[candidate];
if (toTypeImpl) {
break;
}
}
});
derivation.delete();
if (toTypeImpl === null) {
return new this.Handle(ptr);
}
var toTypePointerImpl = requireRegisteredType(toTypeImpl.type);
var handle = toTypePointerImpl.fromWireType(ptr);
handle.ptr = ___staticPointerCast(handle.ptr, this.classType, candidate);
// todo: can come back -1 or -2!! Throw appropriate exception
return handle;
} else {
handle = new this.Handle(ptr);
}
return handle;
};
function RegisteredClassInstance(pointerType, constructor, Handle) {
this.pointerType = pointerType;
this.constructor = constructor;
this.Handle = Handle;
}
function __embind_register_vector(
@ -539,6 +630,22 @@ function __embind_register_vector(
});
}
RegisteredClassInstance.prototype.toWireType = function(destructors, o) {
return o.ptr;
};
RegisteredClassInstance.prototype.fromWireType = function(ptr) {
return new this.Handle(ptr);
};
function RegisteredRawConstPointer() {
}
RegisteredRawConstPointer.prototype.toWireType = function(destructors, o) {
return o.ptr;
};
>>>>>>> Refactoring preparatory to code clean-up (no functional changes, all tests pass).
// TODO: null pointers are always zero (not a Handle) in Javascript
/*global ___staticPointerCast: false*/
function __embind_register_class(
@ -612,70 +719,9 @@ function __embind_register_class(
constructor.prototype = Handle.prototype;
constructor.classType = classType;
registerType(classType, name, {
name: name,
pointerType: pointerType,
constructor: constructor,
Handle: Handle,
fromWireType: function(ptr) {
return new Handle(ptr);
},
toWireType: function(destructors, o) {
return o.ptr;
}
});
/*global ___getDynamicPointerType: false*/
var pointerName = name + '*';
registerType(pointerType, pointerName, {
name: pointerName,
fromWireTypeAutoDowncast: function(ptr) {
var handle;
if (isPolymorphic) {
var toType = ___getDynamicPointerType(ptr);
var toTypeImpl = null;
if (toType === null || toType === pointerType) {
return new Handle(ptr);
}
var derivation = Module.__getDerivationPath(toType, classType);
var candidate = null;
for (var i = 0; i < derivation.size(); i++) {
candidate = derivation.at(i);
toTypeImpl = typeRegistry[candidate];
if (toTypeImpl) {
break;
}
}
derivation.delete();
if (toTypeImpl === null) {
return new Handle(ptr);
}
var toTypePointerImpl = requireRegisteredType(toTypeImpl.pointerType);
handle = toTypePointerImpl.fromWireType(ptr);
handle.ptr = ___staticPointerCast(handle.ptr, classType, candidate);
// todo: can come back -1 or -2!! Throw appropriate exception
return handle;
} else {
handle = new Handle(ptr);
}
return handle;
},
fromWireType: function(ptr) {
return new Handle(ptr);
},
toWireType: function(destructors, o) {
return o.ptr;
}
});
var constPointerName = name + ' const*';
registerType(constPointerType, constPointerName, {
name: constPointerName,
toWireType: function(destructors, o) {
return o.ptr;
}
});
registerType(classType, name, new RegisteredClassInstance(pointerType, constructor, Handle));
registerType(pointerType, name + '*', new RegisteredRawPointer(isPolymorphic, classType, Handle));
registerType(constPointerType, name + ' const*', new RegisteredRawConstPointer());
exposePublicSymbol(name, constructor);
}
@ -742,7 +788,7 @@ function __embind_register_class_method(
args[i + 1] = argTypes[i].toWireType(destructors, arguments[i-1]);
}
var rv = invoker.apply(null, args);
if (argTypes[0].hasOwnProperty('fromWireTypeAutoDowncast')) {
if (argTypes[0].fromWireTypeAutoDowncast) {
rv = argTypes[0].fromWireTypeAutoDowncast(rv);
} else {
rv = argTypes[0].fromWireType(rv);
@ -996,28 +1042,27 @@ function __embind_register_class_field(
});
}
function RegisteredEnum() {
this.constructor = function() {};
this.constructor.values = {};
}
RegisteredEnum.prototype.toWireType = function(destructors, c) {
return c.value;
};
RegisteredEnum.prototype.fromWireType = function(c) {
return this.constructor.values[c];
};
function __embind_register_enum(
enumType,
name
) {
name = Pointer_stringify(name);
function Enum() {
}
Enum.values = {};
registerType(enumType, name, {
name: name,
constructor: Enum,
toWireType: function(destructors, c) {
return c.value;
},
fromWireType: function(c) {
return Enum.values[c];
},
});
exposePublicSymbol(name, Enum);
var newEnum = new RegisteredEnum();
registerType(enumType, name, newEnum);
exposePublicSymbol(name, newEnum.constructor);
}
function __embind_register_enum_value(
@ -1038,6 +1083,19 @@ function __embind_register_enum_value(
Enum[name] = Value;
}
function RegisteredInterface(constructor, destructor) {
this.constructor = constructor;
this.destructor = destructor;
}
RegisteredInterface.prototype.toWireType = function(destructors, o) {
var handle = __emval_register(o);
var ptr = this.constructor(handle);
destructors.push(this.destructor);
destructors.push(ptr);
return ptr;
};
function __embind_register_interface(
interfaceType,
name,
@ -1048,15 +1106,6 @@ function __embind_register_interface(
constructor = FUNCTION_TABLE[constructor];
destructor = FUNCTION_TABLE[destructor];
registerType(interfaceType, name, {
name: name,
toWireType: function(destructors, o) {
var handle = __emval_register(o);
var ptr = constructor(handle);
destructors.push(destructor);
destructors.push(ptr);
return ptr;
},
});
registerType(interfaceType, name, new RegisteredInterface(constructor, destructor));
}

0
src/embind/emval.js Normal file → Executable file
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