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template.ts
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template.ts
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import { Context } from '../../../src/common';
import { pass, fail } from '../../test-utils';
import * as t from 'assert';
import { parseSource } from '../../../src/parser';
describe('Expressions - Template', () => {
for (const arg of [
'`${"a"}`',
'`${1}`',
'example3 = 1 + `${foo}${bar}${baz}`',
'`${""}`',
'y`${y,0}`',
'`${y,0}`',
'foo = `${1}${f}oo${true}${b}ar${0}${baz}`',
'bar = bar`wow\naB${ 42 } ${_.baz()}`',
'bar`wow\na${ 42 }b ${_.foobar()}`',
' bar`wow\naB${ 42 } ${_.baz()}`',
'function z() {}; `z`;',
'function z() {}; `${z}`;',
'function z() {}; `${z}${z}`;',
'function z() {}; `${z}${z}${z}`;',
"function z() {}; `${'z'}${z}${z}`;",
"function z() {}; `${'z'}${'z'}${z}`;",
"function z() {}; `${'z'}${'z'}${async}`;",
"function z() {}; '' + z + '';",
'function z() {}; z`${`${z}`}`;',
'function z() {}; z``;',
'function z() {}; ``;',
'(`${function(id) { return id }}`);',
"function y() {} y`${`${'z'}${`${function(id) { return id }})${ /x/g >= 'c'}`}`}`;",
'tag`foo\\n`',
't`foo\\n`;',
'foo`\r\\\n${0}`',
'`a\\u{062}c`',
'`a\\u{000000062}c`',
'tag`foo\\n`',
't`foo\\n`;',
'`a\\u{d}c`',
'`a\\u{062}c`',
'`a\\u{000000062}c`',
'async`\n${0}`',
'foo`\n${0}`',
'foo`\\\n${0}`',
'foo`\\r${0}`',
'foo`\r\n${0}`',
'foo`\\\r\\\n${0}`',
'foo`\\\r\n${0}`',
'foo`\r\\\n${0}`',
'foo`\\r\\n${0}`',
'foo`\u2029${0}`',
'foo`\\\u2029${0}`',
'foo`\\n${0}`',
'foo`\\r${0}`',
'foo`\\\r\\\n${0}`',
'foo`\r\\n${0}`',
'foo`\\\u2029${0}`',
'`\r\n\t\n`',
'sampleTag`\\01`',
'sampleTag`left${0}\\u{\\u{0}`',
'sampleTag`left${0}\\u{-0}${1}right`',
'sampleTag`left${0}\\u{g}${1}right`',
'sampleTag`left${0}\\u000g${1}right`',
'tag`template-head${a}`',
'tag `no-subst-template`',
'tag\t`foo\n\nbar\r\nbaz`',
'tag`foo${a /* comment */}`',
'`outer${{x: {y: 10}}}bar${`nested${function(){return 1;}}endnest`}end`',
'foo`T\\u200C`',
'foo`\\u{00000000034}`',
'`\\ю`',
'`\\б`',
'a\r\nb`\n\r\nb\\u{g`;',
'`a\\r\\nb`',
'`a\r\nb`',
'`${ {class: 1} }`',
'`${ {enum: 1} }`',
'`${ {function: 1} }`',
'`foo`',
'`foo\\u25a0`',
'foo`\\unicode`',
// 'foo`\\u`',
'foo`\\u\\n\\r`',
'foo`\\uaa\\n\\r`',
'raw`hello ${name}`',
'`$`',
'`\\n\\r\\b\\v\\t\\f\\\n\\\r\n`',
'`\n\r\n\r`',
'`outer${{x: {y: 10}}}bar${`nested${function(){return 1;}}endnest`}end`',
'tag`\\08`',
'tag`\\01`',
'tag`\\01${0}right`',
'tag`left${0}\\01`',
'tag`left${0}\\01${1}right`',
'tag`\\1${0}right`',
'tag`left${0}\\1`',
'tag`left${0}\\1${1}right`',
'tag`\\xg`',
'tag`\\xg${0}right`',
'tag`left${0}\\xg`',
'tag`left${0}\\xg${1}right`',
'tag`\\xAg`',
'tag`\\xAg${0}right`',
'tag`left${0}\\xAg`',
'tag`left${0}\\xAg${1}right`',
'tag`\\u0`',
'tag`\\u0${0}right`',
'tag`left${0}\\u0`',
'tag`left${0}\\u0${1}right`',
'tag`\\u0g`',
'tag`\\u0g${0}right`',
'tag`left${0}\\u0g`',
'tag`left${0}\\u0g${1}right`',
'tag`\\u00g`',
'tag`\\u00g${0}right`',
'tag`left${0}\\u00g`',
'tag`left${0}\\u00g${1}right`',
'tag`\\u000g`',
'tag`\\u000g${0}right`',
'tag`left${0}\\u000g`',
'tag`left${0}\\u000g${1}right`',
'tag`\\u{}`',
'tag`left${0}\\u{-0}`',
'tag`left${0}\\u{-0}${1}right`',
'tag`\\u{g}`',
'tag`\\u{g}${0}right`',
'tag`left${0}\\u{g}`',
'tag`left${0}\\u{g}${1}right`',
'tag`\\u{0${0}right`',
'tag`left${0}\\u{0${1}right`',
'tag`\\u{\\u{0}`',
'tag`\\u{\\u{0}${0}right`',
'tag`left${0}\\u{\\u{0}`',
'tag`left${0}\\u{\\u{0}${1}right`',
'tag`\\u{110000}`',
'tag`\\u{110000}${0}right`',
'tag`left${0}\\u{110000}`',
'tag`left${0}\\u{110000}${1}right`',
'tag`\\u{}${0}right`',
'tag`left${0}\\u{}`',
'tag`left${0}\\u{}${1}right`',
'tag`\\u{-0}`',
'tag`\\u{-0}${0}right`',
'tag`\\1`',
'tag ``',
'tag`foo${a \r\n}`',
'tag`foo${a \r}`',
'tag`foo${// comment\na}`',
'tag`foo${\n a}`',
'tag`foo${\n async}`',
'tag`async${\n a}`',
'`a${b}`',
"'use strict'; `no-subst-template`",
"function foo(){ 'use strict';`template-head${a}`}",
"function foo(){ 'use strict';`${a}`}",
"function foo(){ 'use strict';`${a}template-tail`}",
"'use strict'; `template-head${a}template-tail`",
"'use strict'; `${a}${b}${c}`",
"function foo(){ 'use strict';`a${a}b${b}c${c}`}",
`\`\\\${a}\``,
`\`$a\``,
`\`\${a}\${b}\``,
`\`a\${a}\${b}\``,
`\`\${a}a\${b}\``,
`\`a\${a}a\${b}\``,
'a`\\${a}`',
`\`\${a}\${b}a\``,
`\`\${a}a\${b}a\``,
`\`a\${a}a\${b}a\``,
`\`\${\`\${a}\`}\``,
`\`\${\`a\${a}\`}\``,
`\`\${\`\${a}a\`}\``,
`\`\${\`a\${a}a\`}\``,
`\`\${\`\${\`\${a}\`}\`}\``,
'tag`\\xg`',
'tag`\\xg${0}right`',
'tag`left${0}\\xg`',
'tag`left${0}\\xg${1}right`',
'tag`\\xAg`',
'tag`\\xAg${0}right`',
'tag`left${0}\\xAg`',
'tag`left${0}\\xAg${1}right`',
'tag`\\u0`',
'tag`\\u0${0}right`',
'tag`left${0}\\u0`',
'tag`left${0}\\u0${1}right`',
'tag`\\u0g`',
'tag`\\u0g${0}right`',
'tag`left${0}\\u0g`',
'tag`left${0}\\u0g${1}right`',
'tag`\\u00g`',
'tag`\\u00g${0}right`',
'tag`left${0}\\u00g`',
'tag`left${0}\\u00g${1}right`',
'tag`\\u000g`',
'tag`\\u000g${0}right`',
'tag`left${0}\\u000g`',
'tag`left${0}\\u000g${1}right`',
'tag`\\u{}`',
'tag`\\u{}${0}right`',
'tag`left${0}\\u{}`',
'tag`left${0}\\u{}${1}right`',
'tag`\\u{-0}`',
'tag`\\u{-0}${0}right`',
'tag`left${0}\\u{-0}`',
'tag`left${0}\\u{-0}${1}right`',
'tag`\\u{g}`',
'tag`\\u{g}${0}right`',
'tag`left${0}\\u{g}`',
'tag`left${0}\\u{g}${1}right`',
'tag`left${0}\\u{0${1}right`',
'tag`\\u{\\u{0}`',
'tag`\\u{\\u{0}${0}right`',
'tag`left${0}\\u{\\u{0}`',
'tag`left${0}\\u{\\u{0}${1}right`',
'tag`\\u{110000}`',
'tag`\\u{110000}${0}right`',
'tag `${a}a${b}b${c}c`',
'tag\t`foo\n\nbar\r\nbaz`',
'tag\r`foo\n\n${ bar }\r\nbaz`',
'tag`foo${a /* comment */}`',
'tag`foo${a // comment\n}`',
'tag`foo${a \n}`',
'tag`foo${a \r\n}`',
'tag`foo${a \r}`',
'tag`foo${/* comment */ a}`',
'tag`foo${// comment\na}`',
'tag`foo${\n a}`',
'tag`foo${\r\n a}`',
'tag`foo${\r a}`',
"tag`foo${'a' in a}`",
"'use strict'; tag\r\n`a${a}b${b}c${c}`",
"'use strict'; tag `${a}a${b}b${c}c`",
'function cherow() { var a, b, c; return tag\t`foo\n\nbar\r\nbaz`}',
'function cherow() { var a, b, c; return tag\r`foo\n\n${ bar }\r\nbaz`}',
'function cherow() { var a, b, c; return tag`foo${a /* comment */}`}',
'function cherow() { var a, b, c; return tag`foo${a // comment\n}`}',
'`no-subst-template`',
'`template-head${a}`',
'f`\\xg ${x}`;',
'`${a}`',
'`${a}template-tail`',
'`template-head${a}template-tail`',
'`${a}${b}${c}`',
'`a${a}b${b}c${c}`',
'`${a}a${b}b${c}c`',
'`foo\n\nbar\r\nbaz`',
'`foo\n\n${ bar }\r\nbaz`',
'`foo${a /* comment */}`',
'`foo${a // comment\n}`',
'`foo${a \n}`',
'`foo${a \r\n}`',
'`async${a \r\n}`',
'`foo${a \r}`',
'`foo${/* comment */ a}`',
'`foo${// comment\na}`',
'`foo${\n a}`',
'`foo${\r\n a}`',
'`foo${\r a}`',
"`foo${'a' in a}`",
'a``',
'let a;',
'var foo = `simple template`;',
'var async = `simple template`;',
'let foo = f`template with function`;',
'const foo = f`template with ${some} ${variables}`;',
'var foo = f`template with ${some}${variables}${attached}`;',
'let foo = f()`template with function call before`;',
'const foo = f().g`template with more complex function call`;',
'`${z}${z}`',
'`${z}${z}${z}`',
'`${"z"}${z}${z}`',
'`${"z"}${"z"}${z}`',
'z`${`${z}`}`',
'`\n\r`',
'`\r\n`',
'`$$$a}`',
'`a℮`',
'`دیوانه`',
'`℘`',
'`foo\\tbar`',
'`\\x55a`',
'`f1o2o`',
'`a\\u{d}c`',
'x`a\\u{d}c${0}`',
'`a\\u{0062}c`',
'`a\\{000062}c`',
'`a\\u{00000062}c`',
'`a\\u{000000062}c`',
'`\\\0${0}`',
'x`\0${0}`',
'x`\\\0${0}`',
'x`\\r${0}`',
'x`\\\r\\\n${0}`',
'x`\\\r\n${0}`',
'x`\r\\\n${0}`',
'x`\\r\\n${0}`',
'x`\\r\n${0}`',
'x`\r\\n${0}`',
'x`\\\r\\n${0}`',
'x`\\\u2028${0}`',
'x`\u2029${0}`',
'x`\\\u2029${0}`',
'x`\r${0}`',
'x`\r\n${0}`',
'x`\\r\n${0}`',
'x`\\\r\\n${0}`',
'f`${x} \\xg ${x}`;',
'x`\\\u2028${0}`',
'x`\\0`',
'x`\\08`',
'x`\\0\\0`',
'() => tagged`template literal`',
'var str = `x${y}`.toUpperCase();',
'var str = `x`.toUpperCase();',
'var str = `x${y}` + z; var str2 = `x${y}` * z;',
'var a = `a`, b = c`b`;',
'var str = `${a}${b}`',
'var str = `${a + b}${c}`;',
'var str = x`y${(() => 42)()}`;',
'var str = `foo${ bar }baz`;',
'var str = `foo${bar}baz`;',
'var string = `foo${`${bar}`}`',
"simpleTag`str1 ${'str2'} str3 ${'str4'} str5 ${'str6'} str7 ${'str8'} str9`",
'x`\\ua48c`',
'x`\\h`',
'x`\\h`',
'x`bunch of escape chars \\v\\t\\n\\b\\a`',
'x`$ $ $ {} } { }} {{`',
'x`\\xF8`',
'x`\r\n`',
'x`\r\n\r\n`',
'x`\n\n\n\n\n\n\n\n\n\n`',
'`$$${a}`',
'z``',
'``',
'test`\\uG`;',
'test`\\xG`;',
'test`\\18`;',
'(`\n`)',
'(`\r`)',
'new nestedNewOperatorFunction`1``2``3``array`',
"tag()`'\\00a0'`;",
"(tag = () => {})`'\\00a0'`",
"(() => {})`'\\00a0'`",
"(function tag() { return () => {}; })()`'\\00a0'`",
"(function() { return () => {}; })()`'\\00a0'`",
"(function tag() {})`'\\00a0'`",
"(function() {})`'\\00a0'`",
'String.raw`{\rtf1adeflang1025ansiansicpg1252\\uc1`;'
]) {
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.TaggedTemplate);
});
});
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.TaggedTemplate | Context.OptionsWebCompat);
});
});
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.TaggedTemplate | Context.OptionsNext);
});
});
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.TaggedTemplate | Context.OptionsNext | Context.OptionsLexical);
});
});
it(`"use strict"; ${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`"use strict"; ${arg}`, undefined, Context.TaggedTemplate);
});
});
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.OptionsWebCompat | Context.TaggedTemplate);
});
});
it(`${arg}`, () => {
t.doesNotThrow(() => {
parseSource(`${arg}`, undefined, Context.Strict | Context.Module | Context.TaggedTemplate);
});
});
}
fail('Expressions - Template (fail)', [
['`', Context.Strict],
['x = `1 ${ yield } 2`', Context.Strict],
['x = `1 ${ yield } 2 ${ 3 } 4`', Context.Strict],
['x = `1 ${ yield } 2`', Context.Strict],
['x = `1 ${ yield x } 2`', Context.Strict],
['x = `1 ${ yield x } 2 ${ 3 } 4`', Context.Strict],
['`foo ${a b} bar`', Context.Strict],
['x`foo ${a b} bar`', Context.Strict],
['[`${""}`] = {}', Context.None],
//['`a\\u{d}c`', Context.None],
['[`${""}`] = {}', Context.None],
['[`${""}`] = {}', Context.None],
['[z``] = {}', Context.None],
['[`${"a"}`] = {}', Context.None],
['[`${""}`] = {}', Context.None],
['`\\7`', Context.None],
['`\\10`', Context.None],
['`\\01`', Context.None],
['`\\30`', Context.None],
['`\\001`', Context.None],
['`\\xg`;', Context.None],
['`\\xg ${x}`;', Context.None],
['`${x} \\xg ${x}`;', Context.None],
['`${x} \\xg`;', Context.None],
['`\\001`', Context.None],
['`\\001`', Context.None],
['`\\001`', Context.None],
['`\\001`', Context.None],
['`a${await foo}d`', Context.None],
['`\\u{g}`', Context.None],
['`\\u00g0`', Context.None],
['`\\ufffg${', Context.None],
['`\\uAA`', Context.None],
['`\\u11${', Context.None],
['`\\u{g}`', Context.None],
['`\\u{110000}${', Context.None],
['`\\u{11ffff}${', Context.None]
]);
pass('Expressions - Template (pass)', [
[
'var await = `simple template`;',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'VariableDeclaration',
kind: 'var',
declarations: [
{
type: 'VariableDeclarator',
init: {
type: 'TemplateLiteral',
expressions: [],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'simple template',
raw: 'simple template'
},
tail: true
}
]
},
id: {
type: 'Identifier',
name: 'await'
}
}
]
}
]
}
],
[
'`${y, x`)`}`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'SequenceExpression',
expressions: [
{
type: 'Identifier',
name: 'y'
},
{
type: 'TaggedTemplateExpression',
tag: {
type: 'Identifier',
name: 'x'
},
quasi: {
type: 'TemplateLiteral',
expressions: [],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: ')',
raw: ')'
},
tail: true
}
]
}
}
]
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: '',
raw: ''
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: '',
raw: ''
},
tail: true
}
]
}
}
]
}
],
[
'`${x`)`, y}`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'SequenceExpression',
expressions: [
{
type: 'TaggedTemplateExpression',
tag: {
type: 'Identifier',
name: 'x'
},
quasi: {
type: 'TemplateLiteral',
expressions: [],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: ')',
raw: ')'
},
tail: true
}
]
}
},
{
type: 'Identifier',
name: 'y'
}
]
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: '',
raw: ''
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: '',
raw: ''
},
tail: true
}
]
}
}
]
}
],
[
'`a${b=c}d`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'AssignmentExpression',
left: {
type: 'Identifier',
name: 'b'
},
operator: '=',
right: {
type: 'Identifier',
name: 'c'
}
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'a',
raw: 'a'
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: 'd',
raw: 'd'
},
tail: true
}
]
}
}
]
}
],
[
'f`x${/foo/}y`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TaggedTemplateExpression',
tag: {
type: 'Identifier',
name: 'f'
},
quasi: {
type: 'TemplateLiteral',
expressions: [
{
type: 'Literal',
value: /foo/,
regex: {
pattern: 'foo',
flags: ''
}
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'x',
raw: 'x'
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: 'y',
raw: 'y'
},
tail: true
}
]
}
}
}
]
}
],
[
'`foo ${a} and ${b} and ${c} baz`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'Identifier',
name: 'a'
},
{
type: 'Identifier',
name: 'b'
},
{
type: 'Identifier',
name: 'c'
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'foo ',
raw: 'foo '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' and ',
raw: ' and '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' and ',
raw: ' and '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' baz',
raw: ' baz'
},
tail: true
}
]
}
}
]
}
],
[
'{`foo baz`}',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'BlockStatement',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'foo baz',
raw: 'foo baz'
},
tail: true
}
]
}
}
]
}
]
}
],
[
'{`foo ${a} baz`}',
Context.None,
{
type: 'Program',
body: [
{
type: 'BlockStatement',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
quasis: [
{
type: 'TemplateElement',
value: {
raw: 'foo ',
cooked: 'foo '
},
tail: false
},
{
type: 'TemplateElement',
value: {
raw: ' baz',
cooked: ' baz'
},
tail: true
}
],
expressions: [
{
type: 'Identifier',
name: 'a'
}
]
}
}
]
}
],
sourceType: 'script'
}
],
[
'{`foo ${a} and ${b} and ${c} baz`}',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'BlockStatement',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'Identifier',
name: 'a'
},
{
type: 'Identifier',
name: 'b'
},
{
type: 'Identifier',
name: 'c'
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'foo ',
raw: 'foo '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' and ',
raw: ' and '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' and ',
raw: ' and '
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: ' baz',
raw: ' baz'
},
tail: true
}
]
}
}
]
}
]
}
],
[
'`foo${{}}baz`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'ObjectExpression',
properties: []
}
],
quasis: [
{
type: 'TemplateElement',
value: {
cooked: 'foo',
raw: 'foo'
},
tail: false
},
{
type: 'TemplateElement',
value: {
cooked: 'baz',
raw: 'baz'
},
tail: true
}
]
}
}
]
}
],
[
'`foo${{a,b}}baz`',
Context.None,
{
type: 'Program',
sourceType: 'script',
body: [
{
type: 'ExpressionStatement',
expression: {
type: 'TemplateLiteral',
expressions: [
{
type: 'ObjectExpression',
properties: [
{
type: 'Property',
key: {
type: 'Identifier',
name: 'a'
},
value: {
type: 'Identifier',
name: 'a'
},
kind: 'init',
computed: false,
method: false,
shorthand: true
},
{
type: 'Property',
key: {
type: 'Identifier',
name: 'b'
},
value: {
type: 'Identifier',
name: 'b'
},
kind: 'init',
computed: false,
method: false,
shorthand: true
}
]
}
],
quasis: [
{