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r3_view_compiler_i18n_spec.ts
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r3_view_compiler_i18n_spec.ts
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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {AttributeMarker} from '@angular/compiler/src/core';
import {setup} from '@angular/compiler/test/aot/test_util';
import {DEFAULT_INTERPOLATION_CONFIG, InterpolationConfig} from '../../../compiler/src/compiler';
import {decimalDigest} from '../../../compiler/src/i18n/digest';
import {extractMessages} from '../../../compiler/src/i18n/extractor_merger';
import {HtmlParser} from '../../../compiler/src/ml_parser/html_parser';
import {compile, expectEmit} from './mock_compile';
const angularFiles = setup({
compileAngular: false,
compileFakeCore: true,
compileAnimations: false,
});
const htmlParser = new HtmlParser();
// TODO: update translation extraction RegExp to support `$localize` tags.
const EXTRACT_GENERATED_TRANSLATIONS_REGEXP =
/const\s*(.*?)\s*=\s*goog\.getMsg\("(.*?)",?\s*(.*?)\)/g;
const diff = (a: Set<string>, b: Set<string>): Set<string> =>
new Set([...Array.from(a)].filter(x => !b.has(x)));
const extract = (from: string, regex: any, transformFn: (match: any[], state: Set<any>) => any) => {
const result = new Set<any>();
let item;
while ((item = regex.exec(from)) !== null) {
result.add(transformFn(item, result));
}
return result;
};
// verify that we extracted all the necessary translations
// and their ids match the ones extracted via 'ng xi18n'
const verifyTranslationIds =
(source: string, output: string, exceptions = {},
interpolationConfig: InterpolationConfig = DEFAULT_INTERPOLATION_CONFIG) => {
const parseResult =
htmlParser.parse(source, 'path:://to/template', {tokenizeExpansionForms: true});
const extractedIdToMsg = new Map<string, any>();
const extractedIds = new Set<string>();
const generatedIds = new Set<string>();
const msgs = extractMessages(parseResult.rootNodes, interpolationConfig, [], {});
msgs.messages.forEach(msg => {
const id = msg.id || decimalDigest(msg);
extractedIds.add(id);
extractedIdToMsg.set(id, msg);
});
const regexp = /const\s*MSG_EXTERNAL_(.+?)\s*=\s*goog\.getMsg/g;
const ids = extract(output, regexp, v => v[1]);
ids.forEach(id => { generatedIds.add(id.split('$$')[0]); });
const delta = diff(extractedIds, generatedIds);
if (delta.size) {
// check if we have ids in exception list
const outstanding = diff(delta, new Set(Object.keys(exceptions)));
if (outstanding.size) {
throw new Error(`
Extracted and generated IDs don't match, delta:
${JSON.stringify(Array.from(delta))}
`);
}
}
return true;
};
// verify that placeholders in translation string match
// placeholders object defined as goog.getMsg function argument
const verifyPlaceholdersIntegrity = (output: string) => {
const extractTranslations = (from: string) => {
return extract(from, EXTRACT_GENERATED_TRANSLATIONS_REGEXP, v => [v[2], v[3]]);
};
const extractPlaceholdersFromBody = (body: string) => {
const regex = /{\$(.*?)}/g;
return extract(body, regex, v => v[1]);
};
const extractPlaceholdersFromArgs = (args: string) => {
const regex = /\s+"(.+?)":\s*".*?"/g;
return extract(args, regex, v => v[1]);
};
const translations = extractTranslations(output);
translations.forEach((translation) => {
const bodyPhs = extractPlaceholdersFromBody(translation[0]);
const argsPhs = extractPlaceholdersFromArgs(translation[1]);
if (bodyPhs.size !== argsPhs.size || diff(bodyPhs, argsPhs).size) {
return false;
}
});
return true;
};
const verifyUniqueConsts = (output: string) => {
extract(
output, EXTRACT_GENERATED_TRANSLATIONS_REGEXP,
(current: string[], state: Set<any>): string => {
const key = current[1];
if (state.has(key)) {
throw new Error(`Duplicate const ${key} found in generated output!`);
}
return key;
});
return true;
};
/**
* Escape the template string for being placed inside a backtick string literal.
*
* * "\" would erroneously indicate a control character
* * "`" and "${" strings would erroneously indicate the end of a message part
*/
const escapeTemplate = (template: string) =>
template.replace(/\\/g, '\\\\').replace(/`/g, '\\`').replace(/\$\{/g, '$\\{');
const getAppFilesWithTemplate = (template: string, args: any = {}) => ({
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
${args.preserveWhitespaces ? 'preserveWhitespaces: true,' : ''}
${args.interpolation ? 'interpolation: ' + JSON.stringify(args.interpolation) + ', ' : ''}
template: \`${escapeTemplate(template)}\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
});
const maybePrint = (output: string, verbose: boolean) => {
if (!verbose) return;
// tslint:disable-next-line
console.log(`
========== Generated output: ==========
${output}
=======================================
`);
};
const verify = (input: string, output: string, extra: any = {}): void => {
const files = getAppFilesWithTemplate(input, extra.inputArgs);
const opts = (i18nUseExternalIds: boolean) =>
({i18nUseExternalIds, ...(extra.compilerOptions || {})});
// invoke with file-based prefix translation names
if (!extra.skipPathBasedCheck) {
const result = compile(files, angularFiles, opts(false));
maybePrint(result.source, extra.verbose);
expect(verifyPlaceholdersIntegrity(result.source)).toBe(true);
expect(verifyUniqueConsts(result.source)).toBe(true);
expectEmit(result.source, output, 'Incorrect template');
}
// invoke with translation names based on external ids
if (!extra.skipIdBasedCheck) {
const result = compile(files, angularFiles, opts(true));
maybePrint(result.source, extra.verbose);
const interpolationConfig = extra.inputArgs && extra.inputArgs.interpolation ?
InterpolationConfig.fromArray(extra.inputArgs.interpolation) :
undefined;
expect(verifyTranslationIds(input, result.source, extra.exceptions, interpolationConfig))
.toBe(true);
expect(verifyPlaceholdersIntegrity(result.source)).toBe(true);
expect(verifyUniqueConsts(result.source)).toBe(true);
expectEmit(result.source, output, 'Incorrect template');
}
};
describe('i18n support in the template compiler', () => {
describe('element attributes', () => {
it('should add the meaning and description as JsDoc comments and metadata blocks', () => {
const input = `
<div i18n="meaningA|descA@@idA">Content A</div>
<div i18n-title="meaningB|descB@@idB" title="Title B">Content B</div>
<div i18n-title="meaningC|" title="Title C">Content C</div>
<div i18n-title="meaningD|descD" title="Title D">Content D</div>
<div i18n-title="meaningE@@idE" title="Title E">Content E</div>
<div i18n-title="@@idF" title="Title F">Content F</div>
<div i18n-title="[BACKUP_$\{MESSAGE}_ID:idH]\`desc@@idG" title="Title G">Content G</div>
<div i18n="Some text \\' [BACKUP_MESSAGE_ID: xxx]">Content H</div>
`;
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc descA
* @meaning meaningA
*/
const $MSG_EXTERNAL_idA$$APP_SPEC_TS_1$ = goog.getMsg("Content A");
$I18N_0$ = $MSG_EXTERNAL_idA$$APP_SPEC_TS_1$;
}
else {
$I18N_0$ = $localize \`:meaningA|descA@@idA:Content A\`;
}
var $I18N_3$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc descB
* @meaning meaningB
*/
const $MSG_EXTERNAL_idB$$APP_SPEC_TS_4$ = goog.getMsg("Title B");
$I18N_3$ = $MSG_EXTERNAL_idB$$APP_SPEC_TS_4$;
}
else {
$I18N_3$ = $localize \`:meaningB|descB@@idB:Title B\`;
}
const $_c5$ = ["title", $I18N_3$];
var $I18N_7$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @meaning meaningC
*/
const $MSG_EXTERNAL_6435899732746131543$$APP_SPEC_TS_8$ = goog.getMsg("Title C");
$I18N_7$ = $MSG_EXTERNAL_6435899732746131543$$APP_SPEC_TS_8$;
}
else {
$I18N_7$ = $localize \`:meaningC|:Title C\`;
}
const $_c9$ = ["title", $I18N_7$];
var $I18N_11$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc descD
* @meaning meaningD
*/
const $MSG_EXTERNAL_5200291527729162531$$APP_SPEC_TS_12$ = goog.getMsg("Title D");
$I18N_11$ = $MSG_EXTERNAL_5200291527729162531$$APP_SPEC_TS_12$;
}
else {
$I18N_11$ = $localize \`:meaningD|descD:Title D\`;
}
const $_c13$ = ["title", $I18N_11$];
var $I18N_15$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc meaningE
*/
const $MSG_EXTERNAL_idE$$APP_SPEC_TS_16$ = goog.getMsg("Title E");
$I18N_15$ = $MSG_EXTERNAL_idE$$APP_SPEC_TS_16$;
}
else {
$I18N_15$ = $localize \`:meaningE@@idE:Title E\`;
}
const $_c17$ = ["title", $I18N_15$];
var $I18N_19$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_idF$$APP_SPEC_TS_20$ = goog.getMsg("Title F");
$I18N_19$ = $MSG_EXTERNAL_idF$$APP_SPEC_TS_20$;
}
else {
$I18N_19$ = $localize \`:@@idF:Title F\`;
}
const $_c21$ = ["title", $I18N_19$];
var $I18N_23$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc [BACKUP_$` +
String.raw `{MESSAGE}_ID:idH]` +
'`' + String.raw `desc
*/
const $MSG_EXTERNAL_idG$$APP_SPEC_TS_24$ = goog.getMsg("Title G");
$I18N_23$ = $MSG_EXTERNAL_idG$$APP_SPEC_TS_24$;
}
else {
$I18N_23$ = $localize \`:[BACKUP_$\{MESSAGE}_ID\:idH]\\\`desc@@idG:Title G\`;
}
const $_c25$ = ["title", $I18N_23$];
var $I18N_20$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc Some text \' [BACKUP_MESSAGE_ID: xxx]
*/
const $MSG_EXTERNAL_idG$$APP_SPEC_TS_21$ = goog.getMsg("Content H");
$I18N_20$ = $MSG_EXTERNAL_idG$$APP_SPEC_TS_21$;
}
else {
$I18N_20$ = $localize \`:Some text \\' [BACKUP_MESSAGE_ID\: xxx]:Content H\`;
}
…
consts: [[${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵi18n(1, $I18N_0$);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(2, "div", 0);
$r3$.ɵɵi18nAttributes(3, $_c5$);
$r3$.ɵɵtext(4, "Content B");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(5, "div", 0);
$r3$.ɵɵi18nAttributes(6, $_c9$);
$r3$.ɵɵtext(7, "Content C");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(8, "div", 0);
$r3$.ɵɵi18nAttributes(9, $_c13$);
$r3$.ɵɵtext(10, "Content D");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(11, "div", 0);
$r3$.ɵɵi18nAttributes(12, $_c17$);
$r3$.ɵɵtext(13, "Content E");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(14, "div", 0);
$r3$.ɵɵi18nAttributes(15, $_c21$);
$r3$.ɵɵtext(16, "Content F");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(17, "div", 0);
$r3$.ɵɵi18nAttributes(18, $_c25$);
$r3$.ɵɵtext(19, "Content G");
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(20, "div");
$r3$.ɵɵi18n(21, $I18N_20$);
$r3$.ɵɵelementEnd();
}
}
`;
verify(input, output);
});
it('should not create translations for empty attributes', () => {
const input = `
<div id="static" i18n-title="m|d" title></div>
`;
const output = `
…
consts: [["id", "static", "title", ""]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
}
}
`;
verify(input, output);
});
it('should not create translations for bound attributes', () => {
const input = `
<div
[title]="title" i18n-title
[attr.label]="label" i18n-attr.label>
</div>
`;
const output = `
…
consts: [[3, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("title", ctx.title);
$r3$.ɵɵattribute("label", ctx.label);
}
}
`;
verify(input, output);
});
it('should translate static attributes', () => {
const input = `
<div id="static" i18n-title="m|d" title="introduction"></div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8809028065680254561$$APP_SPEC_TS_1$ = goog.getMsg("introduction");
$I18N_1$ = $MSG_EXTERNAL_8809028065680254561$$APP_SPEC_TS_1$;
}
else {
$I18N_1$ = $localize \`:m|d:introduction\`;
}
const $_c1$ = ["title", $I18N_1$];
…
consts: [["id", "static", ${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵi18nAttributes(1, $_c1$);
$r3$.ɵɵelementEnd();
}
}
`;
verify(input, output);
});
it('should support interpolation', () => {
const input = `
<div id="dynamic-1"
i18n-title="m|d" title="intro {{ valueA | uppercase }}"
i18n-aria-label="m1|d1" aria-label="{{ valueB }}"
i18n-aria-roledescription aria-roledescription="static text"
></div>
<div id="dynamic-2"
i18n-title="m2|d2" title="{{ valueA }} and {{ valueB }} and again {{ valueA + valueB }}"
i18n-aria-roledescription aria-roledescription="{{ valueC }}"
></div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_5526535577705876535$$APP_SPEC_TS_1$ = goog.getMsg("static text");
$I18N_1$ = $MSG_EXTERNAL_5526535577705876535$$APP_SPEC_TS_1$;
}
else {
$I18N_1$ = $localize \`static text\`;
}
var $I18N_2$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8977039798304050198$$APP_SPEC_TS_2$ = goog.getMsg("intro {$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_2$ = $MSG_EXTERNAL_8977039798304050198$$APP_SPEC_TS_2$;
}
else {
$I18N_2$ = $localize \`:m|d:intro $` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
var $I18N_3$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d1
* @meaning m1
*/
const $MSG_EXTERNAL_7432761130955693041$$APP_SPEC_TS_3$ = goog.getMsg("{$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_3$ = $MSG_EXTERNAL_7432761130955693041$$APP_SPEC_TS_3$;
}
else {
$I18N_3$ = $localize \`:m1|d1:$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c1$ = [
"aria-roledescription", $I18N_1$,
"title", $I18N_2$,
"aria-label", $I18N_3$
];
var $I18N_6$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d2
* @meaning m2
*/
const $MSG_EXTERNAL_7566208596013750546$$APP_SPEC_TS_6$ = goog.getMsg("{$interpolation} and {$interpolation_1} and again {$interpolation_2}", {
"interpolation": "\uFFFD0\uFFFD", "interpolation_1": "\uFFFD1\uFFFD", "interpolation_2": "\uFFFD2\uFFFD"
});
$I18N_6$ = $MSG_EXTERNAL_7566208596013750546$$APP_SPEC_TS_6$;
}
else {
$I18N_6$ = $localize \`:m2|d2:$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION: and $` +
String.raw `{"\uFFFD1\uFFFD"}:INTERPOLATION_1: and again $` +
String.raw `{"\uFFFD2\uFFFD"}:INTERPOLATION_2:\`;
}
var $I18N_7$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_6639222533406278123$$APP_SPEC_TS_7$ = goog.getMsg("{$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_7$ = $MSG_EXTERNAL_6639222533406278123$$APP_SPEC_TS_7$;
}
else {
$I18N_7$ = $localize \`$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c3$ = [
"title", $I18N_6$,
"aria-roledescription", $I18N_7$
];
…
decls: 5,
vars: 8,
consts: [["id", "dynamic-1", ${AttributeMarker.I18n}, "aria-roledescription", "title", "aria-label"], ["id", "dynamic-2", ${AttributeMarker.I18n}, "title", "aria-roledescription"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵpipe(1, "uppercase");
$r3$.ɵɵi18nAttributes(2, $_c1$);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(3, "div", 1);
$r3$.ɵɵi18nAttributes(4, $_c3$);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵi18nExp($r3$.ɵɵpipeBind1(1, 6, ctx.valueA))(ctx.valueB);
$r3$.ɵɵi18nApply(2);
$r3$.ɵɵadvance(3);
$r3$.ɵɵi18nExp(ctx.valueA)(ctx.valueB)(ctx.valueA + ctx.valueB)(ctx.valueC);
$r3$.ɵɵi18nApply(4);
}
}
`;
verify(input, output);
});
it('should support interpolation with custom interpolation config', () => {
const input = `
<div i18n-title="m|d" title="intro {% valueA | uppercase %}"></div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8977039798304050198$ = goog.getMsg("intro {$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_1$ = $MSG_EXTERNAL_8977039798304050198$;
}
else {
$I18N_1$ = $localize \`:m|d:intro $` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c3$ = ["title", $I18N_1$];
…
consts: [[${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵpipe(1, "uppercase");
$r3$.ɵɵi18nAttributes(2, $_c3$);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵi18nExp($r3$.ɵɵpipeBind1(1, 1, ctx.valueA));
$r3$.ɵɵi18nApply(2);
}
}
`;
verify(input, output, {inputArgs: {interpolation: ['{%', '%}']}});
});
it('should correctly bind to context in nested template', () => {
const input = `
<div *ngFor="let outer of items">
<div i18n-title="m|d" title="different scope {{ outer | uppercase }}"></div>
</div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8538466649243975456$$APP_SPEC_TS__1$ = goog.getMsg("different scope {$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_1$ = $MSG_EXTERNAL_8538466649243975456$$APP_SPEC_TS__1$;
}
else {
$I18N_1$ = $localize \`:m|d:different scope $` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c2$ = ["title", $I18N_1$];
function MyComponent_div_0_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵelementStart(1, "div", 1);
$r3$.ɵɵpipe(2, "uppercase");
$r3$.ɵɵi18nAttributes(3, $_c2$);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $outer_r1$ = ctx.$implicit;
$r3$.ɵɵadvance(1);
$r3$.ɵɵi18nExp($r3$.ɵɵpipeBind1(2, 1, $outer_r1$));
$r3$.ɵɵi18nApply(3);
}
}
…
decls: 1,
vars: 1,
consts: [[${AttributeMarker.Template}, "ngFor", "ngForOf"], [${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtemplate(0, MyComponent_div_0_Template, 4, 3, "div", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("ngForOf", ctx.items);
}
}
`;
verify(input, output);
});
it('should support complex expressions in interpolation', () => {
const input = `
<div i18n-title title="{{valueA.getRawValue()?.getTitle()}} title"></div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_3462388422673575127$$APP_SPEC_TS_2$ = goog.getMsg("{$interpolation} title", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_1$ = $MSG_EXTERNAL_3462388422673575127$$APP_SPEC_TS_2$;
}
else {
$I18N_1$ = $localize \`$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION: title\`;
}
const $_c3$ = ["title", $I18N_1$];
…
decls: 2,
vars: 1,
consts: [[${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵi18nAttributes(1, $_c3$);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
var $tmp_0_0$ = null;
const $currVal_0$ = ($tmp_0_0$ = ctx.valueA.getRawValue()) == null ? null : $tmp_0_0$.getTitle();
$r3$.ɵɵi18nExp($currVal_0$);
$r3$.ɵɵi18nApply(1);
}
}
`;
verify(input, output);
});
it('should support interpolation', () => {
const input = `
<div id="dynamic-1"
i18n-title="m|d" title="intro {{ valueA | uppercase }}"
i18n-aria-label="m1|d1" aria-label="{{ valueB }}"
i18n-aria-roledescription aria-roledescription="static text"
></div>
<div id="dynamic-2"
i18n-title="m2|d2" title="{{ valueA }} and {{ valueB }} and again {{ valueA + valueB }}"
i18n-aria-roledescription aria-roledescription="{{ valueC }}"
></div>
`;
const output = String.raw `
var $I18N_1$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_5526535577705876535$$APP_SPEC_TS_1$ = goog.getMsg("static text");
$I18N_1$ = $MSG_EXTERNAL_5526535577705876535$$APP_SPEC_TS_1$;
}
else {
$I18N_1$ = $localize \`static text\`;
}
var $I18N_2$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8977039798304050198$$APP_SPEC_TS_2$ = goog.getMsg("intro {$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_2$ = $MSG_EXTERNAL_8977039798304050198$$APP_SPEC_TS_2$;
}
else {
$I18N_2$ = $localize \`:m|d:intro $` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
var $I18N_3$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d1
* @meaning m1
*/
const $MSG_EXTERNAL_7432761130955693041$$APP_SPEC_TS_3$ = goog.getMsg("{$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_3$ = $MSG_EXTERNAL_7432761130955693041$$APP_SPEC_TS_3$;
}
else {
$I18N_3$ = $localize \`:m1|d1:$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c1$ = [
"aria-roledescription", $I18N_1$,
"title", $I18N_2$,
"aria-label", $I18N_3$
];
var $I18N_6$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d2
* @meaning m2
*/
const $MSG_EXTERNAL_7566208596013750546$$APP_SPEC_TS_6$ = goog.getMsg("{$interpolation} and {$interpolation_1} and again {$interpolation_2}", {
"interpolation": "\uFFFD0\uFFFD", "interpolation_1": "\uFFFD1\uFFFD", "interpolation_2": "\uFFFD2\uFFFD"
});
$I18N_6$ = $MSG_EXTERNAL_7566208596013750546$$APP_SPEC_TS_6$;
}
else {
$I18N_6$ = $localize \`:m2|d2:$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION: and $` +
String.raw `{"\uFFFD1\uFFFD"}:INTERPOLATION_1: and again $` +
String.raw `{"\uFFFD2\uFFFD"}:INTERPOLATION_2:\`;
}
var $I18N_7$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_6639222533406278123$$APP_SPEC_TS_7$ = goog.getMsg("{$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_7$ = $MSG_EXTERNAL_6639222533406278123$$APP_SPEC_TS_7$;
}
else {
$I18N_7$ = $localize \`$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c3$ = [
"title", $I18N_6$,
"aria-roledescription", $I18N_7$
];
…
decls: 5,
vars: 8,
consts: [[
"id", "dynamic-1",
${AttributeMarker.I18n}, "aria-roledescription", "title", "aria-label"
], ["id", "dynamic-2", ${AttributeMarker.I18n}, "title", "aria-roledescription"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵpipe(1, "uppercase");
$r3$.ɵɵi18nAttributes(2, $_c1$);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementStart(3, "div", 1);
$r3$.ɵɵi18nAttributes(4, $_c3$);
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
$r3$.ɵɵi18nExp($r3$.ɵɵpipeBind1(1, 6, ctx.valueA))(ctx.valueB);
$r3$.ɵɵi18nApply(2);
$r3$.ɵɵadvance(3);
$r3$.ɵɵi18nExp(ctx.valueA)(ctx.valueB)(ctx.valueA + ctx.valueB)(ctx.valueC);
$r3$.ɵɵi18nApply(4);
}
}
`;
verify(input, output);
});
it('should correctly bind to context in nested template', () => {
const input = `
<div *ngFor="let outer of items">
<div i18n-title="m|d" title="different scope {{ outer | uppercase }}"></div>
</div>
`;
const output = String.raw `
var $I18N_2$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_8538466649243975456$$APP_SPEC_TS__3$ = goog.getMsg("different scope {$interpolation}", {
"interpolation": "\uFFFD0\uFFFD"
});
$I18N_2$ = $MSG_EXTERNAL_8538466649243975456$$APP_SPEC_TS__3$;
}
else {
$I18N_2$ = $localize \`:m|d:different scope $` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\`;
}
const $_c4$ = ["title", $I18N_2$];
function MyComponent_div_0_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div");
$r3$.ɵɵelementStart(1, "div", 1);
$r3$.ɵɵpipe(2, "uppercase");
$r3$.ɵɵi18nAttributes(3, $_c4$);
$r3$.ɵɵelementEnd();
$r3$.ɵɵelementEnd();
}
if (rf & 2) {
const $outer_r1$ = ctx.$implicit;
$r3$.ɵɵadvance(1);
$r3$.ɵɵi18nExp($r3$.ɵɵpipeBind1(2, 1, $outer_r1$));
$r3$.ɵɵi18nApply(3);
}
}
…
decls: 1,
vars: 1,
consts: [[${AttributeMarker.Template}, "ngFor", "ngForOf"], [${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵtemplate(0, MyComponent_div_0_Template, 4, 3, "div", 0);
}
if (rf & 2) {
$r3$.ɵɵproperty("ngForOf", ctx.items);
}
}
`;
verify(input, output);
});
it('should work correctly when placed on i18n root node', () => {
const input = `
<div i18n i18n-title="m|d" title="Element title">Some content</div>
`;
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
/**
* @desc d
* @meaning m
*/
const $MSG_EXTERNAL_7727043314656808423$$APP_SPEC_TS_0$ = goog.getMsg("Element title");
$I18N_0$ = $MSG_EXTERNAL_7727043314656808423$$APP_SPEC_TS_0$;
}
else {
$I18N_0$ = $localize \`:m|d:Element title\`;
}
const $_c1$ = ["title", $I18N_0$];
var $I18N_2$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_4969674997806975147$$APP_SPEC_TS_2$ = goog.getMsg("Some content");
$I18N_2$ = $MSG_EXTERNAL_4969674997806975147$$APP_SPEC_TS_2$;
}
else {
$I18N_2$ = $localize \`Some content\`;
}
…
consts: [[${AttributeMarker.I18n}, "title"]],
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelementStart(0, "div", 0);
$r3$.ɵɵi18nAttributes(1, $_c1$);
$r3$.ɵɵi18n(2, $I18N_2$);
$r3$.ɵɵelementEnd();
}
}
`;
verify(input, output);
});
it('should sanitize ids and generate proper var names', () => {
const input = `
<div i18n="@@ID.WITH.INVALID.CHARS.2" i18n-title="@@ID.WITH.INVALID.CHARS" title="Element title">
Some content
</div>
`;
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_ID_WITH_INVALID_CHARS$$APP_SPEC_TS_1$ = goog.getMsg("Element title");
$I18N_0$ = $MSG_EXTERNAL_ID_WITH_INVALID_CHARS$$APP_SPEC_TS_1$;
}
else {
$I18N_0$ = $localize \`:@@ID.WITH.INVALID.CHARS:Element title\`;
}
const $_c1$ = ["title", $I18N_0$];
var $I18N_2$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_ID_WITH_INVALID_CHARS_2$$APP_SPEC_TS_4$ = goog.getMsg(" Some content ");
$I18N_2$ = $MSG_EXTERNAL_ID_WITH_INVALID_CHARS_2$$APP_SPEC_TS_4$;
}
else {
$I18N_2$ = $localize \`:@@ID.WITH.INVALID.CHARS.2: Some content \`;
}
…
`;
const exceptions = {
'ID.WITH.INVALID.CHARS': 'Verify const name generation only',
'ID.WITH.INVALID.CHARS.2': 'Verify const name generation only'
};
verify(input, output, {exceptions, skipPathBasedCheck: true});
});
});
describe('nested nodes', () => {
it('should not produce instructions for empty content', () => {
const input = `
<div i18n></div>
<div i18n> </div>
<div i18n>
</div>
`;
const output = String.raw `
template: function MyComponent_Template(rf, ctx) {
if (rf & 1) {
$r3$.ɵɵelement(0, "div");
$r3$.ɵɵelement(1, "div");
$r3$.ɵɵelement(2, "div");
}
}
`;
const exceptions = {
'6524085439495453930': 'No translation is produced for empty content (whitespaces)',
'814405839137385666': 'No translation is produced for empty content (line breaks)'
};
verify(input, output, {exceptions});
});
it('should ignore HTML comments within translated text', () => {
const input = `
<div i18n>Some <!-- comments --> text</div>
`;
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_APP_SPEC_TS_1$ = goog.getMsg("Some text");
$I18N_0$ = $MSG_APP_SPEC_TS_1$;
}
else {
$I18N_0$ = $localize \`Some text\`;
}
`;
verify(input, output);
});
it('should properly escape quotes in content', () => {
const input = `
<div i18n>Some text 'with single quotes', "with double quotes", \`with backticks\` and without quotes.</div>
`;
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_EXTERNAL_4924931801512133405$$APP_SPEC_TS_0$ = goog.getMsg("Some text 'with single quotes', \"with double quotes\", ` +
'`with backticks`' + String.raw ` and without quotes.");
$I18N_0$ = $MSG_EXTERNAL_4924931801512133405$$APP_SPEC_TS_0$;
}
else {
$I18N_0$ = $localize \`Some text 'with single quotes', "with double quotes", \\\`with backticks\\\` and without quotes.\`;
}
`;
verify(input, output);
});
it('should handle interpolations wrapped in backticks', () => {
const input = '<div i18n>`{{ count }}`</div>';
const output = String.raw `
var $I18N_0$;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
const $MSG_APP_SPEC_TS_1$ = goog.getMsg("` +
'`{$interpolation}`' + String.raw `", { "interpolation": "\uFFFD0\uFFFD" });
$I18N_0$ = $MSG_APP_SPEC_TS_1$;
}
else {
$I18N_0$ = $localize \`\\\`$` +
String.raw `{"\uFFFD0\uFFFD"}:INTERPOLATION:\\\`\`;
}`;
verify(input, output);
});
it('should handle i18n attributes with plain-text content', () => {
const input = `
<div i18n>My i18n block #1</div>
<div>My non-i18n block #1</div>