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register.js
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register.js
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import Ember from 'ember';
if (Ember.__loader.registry['ember-glimmer/syntax']) {
const { registerMacros } = Ember.__loader.require('ember-glimmer/syntax');
if (registerMacros) {
// Support for >= 2.13.0.
const { compileArgs } = Ember.__loader.require('@glimmer/runtime');
registerMacros(blocks => {
blocks.add('let', (sexp, builder) => {
let [,, params, hash, _default] = sexp;
let args = compileArgs(params, hash, builder);
builder.putArgs(args);
builder.labelled(null, b => {
b.evaluate(_default);
});
});
});
} else {
// Support for < 2.13.0.
const { registerSyntax } = Ember.__loader.require('ember-glimmer');
const { StatementSyntax } = Ember.__loader.require('glimmer-runtime');
class LetSyntax extends StatementSyntax {
static create(environment, args, templates) {
return new this(args, templates);
}
constructor(args, templates) {
super();
this.args = args;
this.templates = templates;
}
compile(dsl) {
let args = this.args;
// added just before 2.10.0 final in https://github.com/tildeio/glimmer/pull/349
if (args.blocks) {
let blocks = args.blocks;
dsl.putArgs(args);
dsl.block(null, dsl => {
dsl.evaluate('default', blocks.default);
});
} else {
// supports 2.9.0-beta.1 - 2.9.0.beta.5, 2.10.0-beta.1 - 2.10.0-beta.4
dsl.block({ templates: this.templates, args: args }, dsl => {
dsl.evaluate('default');
});
}
}
}
registerSyntax('let', LetSyntax);
}
} else if (Ember.__loader.registry['ember-htmlbars/helpers']) {
const { registerHelper } = Ember.__loader.require('ember-htmlbars/helpers');
registerHelper('let', function letHelper(params, hash, options) {
let isBlock = !!options.template.yield;
// when used as a block
if (isBlock) {
options.template.yield(params);
}
});
}