Contents

import { assert, deprecate } from '@ember/debug';
import { BINDING_SUPPORT } from '@ember/deprecated-features';
import calculateLocationDisplay from '../system/calculate-location-display';
export default function transformOldBindingSyntax(env) {
    if (BINDING_SUPPORT) {
        let { moduleName } = env.meta;
        let b = env.syntax.builders;
        let exprToString = (expr) => {
            switch (expr.type) {
                case 'StringLiteral':
                    return `"${expr.original}"`;
                case 'PathExpression':
                    return expr.original;
            }
            return '';
        };
        let processHash = (node) => {
            for (let i = 0; i < node.hash.pairs.length; i++) {
                let pair = node.hash.pairs[i];
                let { key, value } = pair;
                let sourceInformation = calculateLocationDisplay(moduleName, pair.loc);
                if (key === 'classBinding') {
                    return;
                }
                assert(`Setting 'attributeBindings' via template helpers is not allowed ${sourceInformation}`, key !== 'attributeBindings');
                if (key.substr(-7) === 'Binding') {
                    let newKey = key.slice(0, -7);
                    deprecate(`You're using legacy binding syntax: ${key}=${exprToString(value)} ${sourceInformation}. Please replace with ${newKey}=${value.original}`, false, {
                        id: 'ember-template-compiler.transform-old-binding-syntax',
                        until: '3.0.0',
                    });
                    pair.key = newKey;
                    if (value.type === 'StringLiteral') {
                        pair.value = b.path(value.original);
                    }
                }
            }
        };
        return {
            name: 'transform-old-binding-syntax',
            visitor: {
                BlockStatement: processHash,
                MustacheStatement: processHash,
            },
        };
    }
    return undefined;
}

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
discourse-ember-source-3.5.1.1	dist/es/ember-template-compiler/lib/plugins/transform-old-binding-syntax.js
discourse-ember-source-3.5.1.0	dist/dist/es/ember-template-compiler/lib/plugins/transform-old-binding-syntax.js