angular2
Version:
Angular 2 - a web framework for modern web apps
135 lines • 6.35 kB
JavaScript
;var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
switch (arguments.length) {
case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
}
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var di_1 = require('angular2/src/core/di');
var lang_1 = require('angular2/src/facade/lang');
var exceptions_1 = require('angular2/src/facade/exceptions');
var collection_1 = require('angular2/src/facade/collection');
var metadata_1 = require('angular2/src/core/metadata');
var reflection_1 = require('angular2/src/core/reflection/reflection');
function _isDirectiveMetadata(type) {
return type instanceof metadata_1.DirectiveMetadata;
}
/*
* Resolve a `Type` for {@link DirectiveMetadata}.
*
* This interface can be overridden by the application developer to create custom behavior.
*
* See {@link Compiler}
*/
var DirectiveResolver = (function () {
function DirectiveResolver() {
}
/**
* Return {@link DirectiveMetadata} for a given `Type`.
*/
DirectiveResolver.prototype.resolve = function (type) {
var typeMetadata = reflection_1.reflector.annotations(di_1.resolveForwardRef(type));
if (lang_1.isPresent(typeMetadata)) {
var metadata = typeMetadata.find(_isDirectiveMetadata);
if (lang_1.isPresent(metadata)) {
var propertyMetadata = reflection_1.reflector.propMetadata(type);
return this._mergeWithPropertyMetadata(metadata, propertyMetadata);
}
}
throw new exceptions_1.BaseException("No Directive annotation found on " + lang_1.stringify(type));
};
DirectiveResolver.prototype._mergeWithPropertyMetadata = function (dm, propertyMetadata) {
var inputs = [];
var outputs = [];
var host = {};
var queries = {};
collection_1.StringMapWrapper.forEach(propertyMetadata, function (metadata, propName) {
metadata.forEach(function (a) {
if (a instanceof metadata_1.InputMetadata) {
if (lang_1.isPresent(a.bindingPropertyName)) {
inputs.push(propName + ": " + a.bindingPropertyName);
}
else {
inputs.push(propName);
}
}
if (a instanceof metadata_1.OutputMetadata) {
if (lang_1.isPresent(a.bindingPropertyName)) {
outputs.push(propName + ": " + a.bindingPropertyName);
}
else {
outputs.push(propName);
}
}
if (a instanceof metadata_1.HostBindingMetadata) {
if (lang_1.isPresent(a.hostPropertyName)) {
host[("[" + a.hostPropertyName + "]")] = propName;
}
else {
host[("[" + propName + "]")] = propName;
}
}
if (a instanceof metadata_1.HostListenerMetadata) {
var args = lang_1.isPresent(a.args) ? a.args.join(', ') : '';
host[("(" + a.eventName + ")")] = propName + "(" + args + ")";
}
if (a instanceof metadata_1.ContentChildrenMetadata) {
queries[propName] = a;
}
if (a instanceof metadata_1.ViewChildrenMetadata) {
queries[propName] = a;
}
if (a instanceof metadata_1.ContentChildMetadata) {
queries[propName] = a;
}
if (a instanceof metadata_1.ViewChildMetadata) {
queries[propName] = a;
}
});
});
return this._merge(dm, inputs, outputs, host, queries);
};
DirectiveResolver.prototype._merge = function (dm, inputs, outputs, host, queries) {
var mergedInputs = lang_1.isPresent(dm.inputs) ? collection_1.ListWrapper.concat(dm.inputs, inputs) : inputs;
var mergedOutputs = lang_1.isPresent(dm.outputs) ? collection_1.ListWrapper.concat(dm.outputs, outputs) : outputs;
var mergedHost = lang_1.isPresent(dm.host) ? collection_1.StringMapWrapper.merge(dm.host, host) : host;
var mergedQueries = lang_1.isPresent(dm.queries) ? collection_1.StringMapWrapper.merge(dm.queries, queries) : queries;
if (dm instanceof metadata_1.ComponentMetadata) {
return new metadata_1.ComponentMetadata({
selector: dm.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: dm.exportAs,
moduleId: dm.moduleId,
queries: mergedQueries,
changeDetection: dm.changeDetection,
providers: dm.providers,
viewProviders: dm.viewProviders
});
}
else {
return new metadata_1.DirectiveMetadata({
selector: dm.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: dm.exportAs,
moduleId: dm.moduleId,
queries: mergedQueries,
providers: dm.providers
});
}
};
DirectiveResolver = __decorate([
di_1.Injectable(),
__metadata('design:paramtypes', [])
], DirectiveResolver);
return DirectiveResolver;
})();
exports.DirectiveResolver = DirectiveResolver;
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