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Merged
merged 14 commits into from
May 18, 2022
Merged

Add support for the automatic dev runtime #2

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8f6309d
Support the automatic dev runtime
remcohaszing May 17, 2022
7bac503
Fix linting issue
remcohaszing May 17, 2022
e3ea95e
Combine adding positional source info
remcohaszing May 17, 2022
2fab741
Add test using position not at 1:1
remcohaszing May 17, 2022
fff3d99
Document development and filePath options
remcohaszing May 17, 2022
9fbb1bc
Fix inconsistency in readme
remcohaszing May 17, 2022
543b4ff
Update index.js
remcohaszing May 17, 2022
c6ac054
Update index.js
remcohaszing May 17, 2022
ecc7a6a
Update readme.md
remcohaszing May 17, 2022
9585e87
Update readme.md
remcohaszing May 17, 2022
09710c2
Replace void 0 with undefined
remcohaszing May 17, 2022
66e0051
Set dev mode self to this
remcohaszing May 17, 2022
e8b8bc5
Use fake source filename if missing
remcohaszing May 18, 2022
1cb4fc9
Update readme.md
remcohaszing May 18, 2022
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113 changes: 91 additions & 22 deletions index.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ const regex = /@(jsx|jsxFrag|jsxImportSource|jsxRuntime)\s+(\S+)/g
* @typedef {import('estree-jsx').Comment} Comment
* @typedef {import('estree-jsx').Expression} Expression
* @typedef {import('estree-jsx').Pattern} Pattern
* @typedef {import('estree-jsx').ObjectExpression} ObjectExpression
* @typedef {import('estree-jsx').Property} Property
* @typedef {import('estree-jsx').ImportSpecifier} ImportSpecifier
* @typedef {import('estree-jsx').SpreadElement} SpreadElement
Expand Down Expand Up @@ -35,6 +36,8 @@ const regex = /@(jsx|jsxFrag|jsxImportSource|jsxRuntime)\s+(\S+)/g
* @property {string} [importSource='react']
* @property {string} [pragma='React.createElement']
* @property {string} [pragmaFrag='React.Fragment']
* @property {boolean} [development=false]
* @property {string} [filePath]
*/

/**
Expand All @@ -55,7 +58,7 @@ export function buildJsx(tree, options = {}) {
let automatic = options.runtime === 'automatic'
/** @type {Annotations} */
const annotations = {}
/** @type {{fragment?: boolean, jsx?: boolean, jsxs?: boolean}} */
/** @type {{fragment?: boolean, jsx?: boolean, jsxs?: boolean, jsxDEV?: boolean}} */
const imports = {}

walk(tree, {
Expand Down Expand Up @@ -139,6 +142,14 @@ export function buildJsx(tree, options = {}) {
})
}

if (imports.jsxDEV) {
specifiers.push({
type: 'ImportSpecifier',
imported: {type: 'Identifier', name: 'jsxDEV'},
local: {type: 'Identifier', name: '_jsxDEV'}
})
}

if (specifiers.length > 0) {
node.body.unshift({
type: 'ImportDeclaration',
Expand All @@ -148,7 +159,8 @@ export function buildJsx(tree, options = {}) {
value:
(annotations.jsxImportSource ||
options.importSource ||
'react') + '/jsx-runtime'
'react') +
(options.development ? '/jsx-dev-runtime' : '/jsx-runtime')
}
})
}
Expand Down Expand Up @@ -267,19 +279,21 @@ export function buildJsx(tree, options = {}) {
)
}

if (automatic && children.length > 0) {
fields.push({
type: 'Property',
key: {type: 'Identifier', name: 'children'},
value:
children.length > 1
? {type: 'ArrayExpression', elements: children}
: children[0],
kind: 'init',
method: false,
shorthand: false,
computed: false
})
if (automatic) {
if (children.length > 0) {
fields.push({
type: 'Property',
key: {type: 'Identifier', name: 'children'},
value:
children.length > 1
? {type: 'ArrayExpression', elements: children}
: children[0],
kind: 'init',
method: false,
shorthand: false,
computed: false
})
}
} else {
parameters = children
}
Expand Down Expand Up @@ -310,19 +324,74 @@ export function buildJsx(tree, options = {}) {
}

if (automatic) {
if (children.length > 1) {
parameters.push(props || {type: 'ObjectExpression', properties: []})

if (key) {
parameters.push(key)
} else if (options.development) {
parameters.push({
type: 'UnaryExpression',
operator: 'void',
prefix: true,
argument: {type: 'Literal', value: 0}
})
}

const isStaticChildren = children.length > 1
if (options.development) {
imports.jsxDEV = true
callee = {
type: 'Identifier',
name: '_jsxDEV'
}
parameters.push({type: 'Literal', value: isStaticChildren})
if (options.filePath) {
/** @type {ObjectExpression} */
const source = {
type: 'ObjectExpression',
properties: [
{
type: 'Property',
method: false,
shorthand: false,
computed: false,
kind: 'init',
key: {type: 'Identifier', name: 'fileName'},
value: {type: 'Literal', value: options.filePath}
}
]
}
if (node.loc?.start.line != null) {
source.properties.push({
type: 'Property',
method: false,
shorthand: false,
computed: false,
kind: 'init',
key: {type: 'Identifier', name: 'lineNumber'},
value: {type: 'Literal', value: node.loc.start.line}
})
}
if (node.loc?.start.column != null) {
source.properties.push({
type: 'Property',
method: false,
shorthand: false,
computed: false,
kind: 'init',
key: {type: 'Identifier', name: 'columnNumber'},
value: {type: 'Literal', value: node.loc.start.column + 1}
})
}
parameters.push(source)
}
} else if (isStaticChildren) {
imports.jsxs = true
callee = {type: 'Identifier', name: '_jsxs'}
} else {
imports.jsx = true
callee = {type: 'Identifier', name: '_jsx'}
}

parameters.push(props || {type: 'ObjectExpression', properties: []})

if (key) {
parameters.push(key)
}
}
// Classic.
else {
Expand Down
189 changes: 189 additions & 0 deletions test.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1232,6 +1232,195 @@ test('estree-util-build-jsx', (t) => {
'should support the automatic runtime (key, no props, no children)'
)

t.deepEqual(
generate(
buildJsx(parse('<>a</>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {Fragment as _Fragment, jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV(_Fragment, {',
' children: "a"',
'}, void 0, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (fragment, jsx, settings, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a key="a">b{1}</a>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {',
' children: ["b", 1]',
'}, "a", true, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (jsxs, key, comment, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a b="1" {...c}>d</a>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", Object.assign({',
' b: "1"',
'}, c, {',
' children: "d"',
'}), void 0, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (props, spread, children, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a {...{b: 1, c: 2}} d="e">f</a>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", Object.assign({',
' b: 1,',
' c: 2',
'}, {',
' d: "e",',
' children: "f"',
'}), void 0, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (spread, props, children, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a>b</a>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {',
' children: "b"',
'}, void 0, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (no props, children, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a/>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {}, void 0, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (no props, no children, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a key/>', false), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {}, true, false, {',
' fileName: "index.js",',
' lineNumber: 1,',
' columnNumber: 1',
'});',
''
].join('\n'),
'should support the automatic runtime (key, no props, no children, development)'
)

t.deepEqual(
generate(
buildJsx(parse('<a />', false), {
runtime: 'automatic',
development: true
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {}, void 0, false);',
''
].join('\n'),
'should support the automatic runtime (no props, no children, development, no filePath)'
)

t.deepEqual(
generate(
buildJsx(parse('<a />'), {
runtime: 'automatic',
development: true,
filePath: 'index.js'
})
),
[
'import {jsxDEV as _jsxDEV} from "react/jsx-dev-runtime";',
'_jsxDEV("a", {}, void 0, false, {',
' fileName: "index.js"',
'});',
''
].join('\n'),
'should support the automatic runtime (no props, no children, development, no locations)'
)

t.throws(
() => {
buildJsx(parse('<a {...b} key/>'), {runtime: 'automatic'})
Expand Down