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esiur-js/src/Resource/Template/ResourceTemplate.js
2021-06-18 17:58:37 +03:00

500 lines
16 KiB
JavaScript

/*
* Copyright (c) 2017 Ahmed Kh. Zamil
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
"use strict";
import FunctionTemplate from './FunctionTemplate.js';
import PropertyTemplate from './PropertyTemplate.js';
import EventTemplate from './EventTemplate.js';
import SHA256 from '../../Security/Integrity/SHA256.js';
import {DC, BL} from '../../Data/DataConverter.js';
import ArgumentTemplate from './ArgumentTemplate.js';
import TemplateDataType from "./TemplateDataType.js";
import IResource from '../IResource.js';
import IRecord from '../../Data/IRecord.js';
import TemplateType from './TemplateType.js'
export default class ResourceTemplate {
getEventTemplateByName(eventName) {
for (var i = 0; i < this.events.length; i++)
if (this.events[i].name == eventName)
return this.events[i];
return null;
}
getEventTemplateByIndex(index) {
for (var i = 0; i < this.events.length; i++)
if (this.events[i].index == index)
return this.events[i];
return null;
}
getFunctionTemplateByName(functionName) {
for (var i = 0; i < this.functions.length; i++)
if (this.functions[i].name == functionName)
return this.functions[i];
return null;
}
getFunctionTemplateByIndex(index) {
for (var i = 0; i < this.functions.length; i++)
if (this.functions[i].index == index)
return this.functions[i];
return null;
}
getPropertyTemplateByName(propertyName) {
for (var i = 0; i < this.properties.length; i++)
if (this.properties[i].name == propertyName)
return this.properties[i];
return null;
}
getPropertyTemplateByIndex(index) {
for (var i = 0; i < this.properties.length; i++)
if (this.properties[i].index == index)
return this.properties[i];
return null;
}
/*
template: {
properties: [
{name: 'size', read: null, write: null}
],
functions: [
],
events: [
]
}
*/
static getTypeGuid(type) {
return getTypeGuidByName(type.template.namespace + "." + type.prototype.constructor.name);
}
static getTypeGuidByName(typeName)
{
return SHA256.compute(DC.stringToBytes(this.className)).getGuid(0);
}
static getDependencies(template)
{
var list = [];
list.add(template);
var getDependenciesFunc = null;
getDependenciesFunc = (tmp, bag) =>
{
if (template.resourceType == null)
return;
// functions
for(var i = 0; i < tmp.functions.length; i++)
{
f = tmp.functions[i];
var frtt = Warehouse.getTemplateByType(f.methodInfo.returnType);
if (frtt != null)
{
if (!bag.includes(frtt))
{
list.push(frtt);
getDependenciesFunc(frtt, bag);
}
}
var args = f.methodInfo.parameters;
for(var i = 0; i < args.length - 1; i++)
{
var fpt = Warehouse.getTemplateByType(args[i].parameterType);
if (fpt != null)
{
if (!bag.includes(fpt))
{
bag.push(fpt);
getDependenciesFunc(fpt, bag);
}
}
}
// skip DistributedConnection argument
if (args.length > 0)
{
var last = args[args.length - 1];
if (last.parameterType == DistributedConnection)
{
var fpt = Warehouse.getTemplateByType(last.parameterType);
if (fpt != null)
{
if (!bag.includes(fpt))
{
bag.push(fpt);
getDependenciesFunc(fpt, bag);
}
}
}
}
}
// properties
for (var i = 0; i < tmp.properties.length; i++)
{
var p = tmp.properties[i];
var pt = Warehouse.getTemplateByType(p.propertyInfo.propertyType);
if (pt != null)
{
if (!bag.includes(pt))
{
bag.push(pt);
getDependenciesFunc(pt, bag);
}
}
}
// events
for(var i = 0; i < tmp.events.length; i++)
{
var e = tmp.events[i];
var et = Warehouse.getTemplateByType(e.eventInfo.eventHandlerType);
if (et != null)
{
if (!bag.includes(et))
{
bag.Add(et);
getDependenciesFunc(et, bag);
}
}
}
};
getDependenciesFunc(template, list);
return list;
}
constructor(type) {
this.properties = [];
this.events = [];
this.functions = [];
this.members = [];
if (type === undefined)
return;
if (type.prototype instanceof IRecord)
this.templateType = TemplateType.Record;
else if (type.prototype instanceof IResource)
this.templateType = TemplateType.Resource;
else
throw new Error("Type is neither a resource nor a record.");
this.resourceType = type;
var template = type.template;
// set guid
this.className = template.namespace + "." + type.prototype.constructor.name;
this.classId = SHA256.compute(DC.stringToBytes(this.className)).getGuid(0);
//byte currentIndex = 0;
if (template.properties != null)
for (var i = 0; i < template.properties.length; i++) {
//[name, type, {read: comment, write: comment, recordable: }]
var pi = template.properties[i];
var pt = new PropertyTemplate();
pt.name = pi[0];
pt.index = i;
pt.valueType = TemplateDataType.fromType(pi[1]),
pt.readExpansion = pi[2]?.read;
pt.writeExpansion = pi[2]?.write;
pt.recordable = pi[2]?.recordable;
pt.propertyInfo = pi;
this.properties.push(pt);
}
if (this.templateType == TemplateType.Resource)
{
if (template.events != null)
{
for (var i = 0; i < template.events.length; i++) {
// [name, type, {listenable: true/false, help: ""}]
var ei = template.events[i];
var et = new EventTemplate();
et.name = ei[0];
et.index = i;
et.argumentType = TemplateDataType.fromType(ei[1]),
et.expansion = ei[2]?.help;
et.listenable = ei[2]?.listenable;
et.eventInfo = ei;
this.events.push(et);
}
}
if (template.functions != null)
{
for (var i = 0; i < template.functions.length; i++) {
var fi = template.functions[i];
// [name, {param1: type, param2: int}, returnType, "Description"]
var ft = new FunctionTemplate();
ft.name = fi[0];
ft.index = i;
ft.returnType = TemplateDataType.fromType(fi[2]);
ft.expansion = fi[3];
ft.arguments = [];
for(var arg in fi[1])
ft.arguments.push(new ArgumentTemplate(arg, TemplateDataType.fromType(fi[1][arg])))
ft.methodInfo = fi;
this.functions.push(ft);
}
}
}
// append signals
for (var i = 0; i < this.events.length; i++)
this.members.push(this.events[i]);
// append slots
for (var i = 0; i < this.functions.length; i++)
this.members.push(this.functions[i]);
// append properties
for (var i = 0; i < this.properties.length; i++)
this.members.push(this.properties[i]);
// bake it binarily
var b = BL();
var cls = DC.stringToBytes(this.className);
b.addUint8(this.templateType)
.addUint8Array(this.classId.value)
.addUint8(cls.length)
.addUint8Array(cls)
.addUint32(template.version)
.addUint16(this.members.length);
for (var i = 0; i < this.functions.length; i++)
b.addUint8Array(this.functions[i].compose());
for (var i = 0; i < this.properties.length; i++)
b.addUint8Array(this.properties[i].compose());
for (var i = 0; i < this.events.length; i++)
b.addUint8Array(this.events[i].compose());
this.content = b.toArray();
}
static getFunctionParameters(func)
{
var STRIP_COMMENTS = /(\/\/.*$)|(\/\*[\s\S]*?\*\/)|(\s*=[^,\)]*(('(?:\\'|[^'\r\n])*')|("(?:\\"|[^"\r\n])*"))|(\s*=[^,\)]*))/mg;
var ARGUMENT_NAMES = /([^\s,]+)/g;
var fnStr = func.toString().replace(STRIP_COMMENTS, '');
var result = fnStr.slice(fnStr.indexOf('(')+1, fnStr.indexOf(')')).match(ARGUMENT_NAMES);
if(result === null)
result = [];
return result;
}
static _getParamNames(func) {
var fnStr = func.toString().replace(/((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg, '');
var result = fnStr.slice(fnStr.indexOf('(')+1, fnStr.indexOf(')')).match(/([^\s,]+)/g);
if(result === null)
result = [];
return result;
}
static parse(data, offset = 0, contentLength = -1) {
if (contentLength == -1)
contentLength = data.length;
var ends = offset + contentLength;
var oOffset = offset;
// start parsing...
var od = new ResourceTemplate();
od.content = data.clip(offset, contentLength);
od.templateType = data.getUint8(offset++);
od.classId = data.getGuid(offset);
offset += 16;
od.className = data.getString(offset + 1, data.getUint8(offset));
offset += data.getUint8(offset) + 1;
od.version = data.getInt32(offset);
offset += 4;
var methodsCount = data.getUint16(offset);
offset += 2;
var functionIndex = 0;
var propertyIndex = 0;
var eventIndex = 0;
for (var i = 0; i < methodsCount; i++) {
var type = data.getUint8(offset) >> 5;
if (type == 0) // function
{
var ft = new FunctionTemplate();
ft.index = functionIndex++;
var hasExpansion = ((data.getUint8(offset++) & 0x10) == 0x10);
var len = data.getUint8(offset++);
ft.name = data.getString(offset, len);
offset += len;
// return type
var {size, value: returnType} = TemplateDataType.parse(data, offset);
offset += size;
ft.returnType = returnType;
// arguments count
var argsCount = data.getUint8(offset++);
var args = [];
for (var a = 0; a < argsCount; a++)
{
var {size, value: argType} = ArgumentTemplate.parse(data, offset);
args.push(argType);
offset += size;
}
ft.arguments = args;
if (hasExpansion) // expansion ?
{
var cs = data.getUint32(offset);
offset += 4;
ft.expansion = data.getString(offset, cs);
offset += cs;
}
od.functions.push(ft);
}
else if (type == 1) // property
{
var pt = new PropertyTemplate();
pt.index = propertyIndex++;
var hasReadExpansion = ((data.getUint8(offset) & 0x8) == 0x8);
var hasWriteExpansion = ((data.getUint8(offset) & 0x10) == 0x10);
pt.recordable = ((data.getUint8(offset) & 1) == 1);
pt.permission = ((data.getUint8(offset++) >> 1) & 0x3);
var len = data.getUint8(offset++);
pt.name = data.getString(offset, len);
offset += len;
var {size, value: valueType} = TemplateDataType.parse(data, offset);
offset += size;
pt.valueType = valueType;
if (hasReadExpansion) // expansion ?
{
var cs = data.getUint32(offset);
offset += 4;
pt.readExpansion = data.getString(offset, cs);
offset += cs;
}
if (hasWriteExpansion) // expansion ?
{
var cs = data.getUint32(offset);
offset += 4;
pt.writeExpansion = data.getString(offset, cs);
offset += cs;
}
od.properties.push(pt);
}
else if (type == 2) // Event
{
var et = new EventTemplate();
et.index = eventIndex++;
var hasExpansion = ((data.getUint8(offset) & 0x10) == 0x10);
et.listenable = ((data.getUint8(offset++) & 0x8) == 0x8);
var len = data.getUint8(offset++);
et.name = data.getString(offset, len);
offset += len;
var {size, value: argType} = TemplateDataType.parse(data, offset);
offset += size;
et.argumentType = argType;
if (hasExpansion) // expansion ?
{
var cs = data.getUint32(offset);
offset += 4;
et.expansion = data.getString(offset, cs);
offset += cs;
}
od.events.push(et);
}
}
// append signals
for (var i = 0; i < od.events.length; i++)
od.members.push(od.events[i]);
// append slots
for (var i = 0; i < od.functions.length; i++)
od.members.push(od.functions[i]);
// append properties
for (var i = 0; i < od.properties.length; i++)
od.members.push(od.properties[i]);
return od;
}
}