lukechilds
/
rollup
mirror of https://github.com/lukechilds/rollup.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Merge branch 'eventualbuddha-failing-rsvp-test'

contingency-plan
Rich Harris 10 years ago
parent
4cfb38a116 412544268c
commit
19f02ee433
11 changed files with 390 additions and 355 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 295
      src/Bundle.js
  2. 8
      src/ExternalModule.js
  3. 366
      src/Module.js
  4. 46
      src/Statement.js
  5. 10
      src/ast/Scope.js
  6. 3
      test/function/top-level-side-effects-are-preserved/_config.js
  7. 1
      test/function/top-level-side-effects-are-preserved/asap.js
  8. 1
      test/function/top-level-side-effects-are-preserved/config.js
  9. 5
      test/function/top-level-side-effects-are-preserved/defer.js
  10. 3
      test/function/top-level-side-effects-are-preserved/main.js
  11. 7
      test/function/top-level-side-effects-are-preserved/rsvp.js

295
src/Bundle.js
View File

@ -45,47 +45,13 @@ export default class Bundle {
this.modulePromises = blank();
this.modules = [];
this.statements = [];
this.statements = null;
this.externalModules = [];
this.internalNamespaceModules = [];
this.assumedGlobals = blank();
}
fetchModule ( importee, importer ) {
return Promise.resolve( this.resolveId( importee, importer, this.resolveOptions ) )
.then( id => {
if ( !id ) {
// external module
if ( !this.modulePromises[ importee ] ) {
const module = new ExternalModule( importee );
this.externalModules.push( module );
this.modulePromises[ importee ] = Promise.resolve( module );
}
return this.modulePromises[ importee ];
}
if ( !this.modulePromises[ id ] ) {
this.modulePromises[ id ] = Promise.resolve( this.load( id, this.loadOptions ) )
.then( source => {
const module = new Module({
id,
source,
bundle: this
});
this.modules.push( module );
return module;
});
}
return this.modulePromises[ id ];
});
}
build () {
// bring in top-level AST nodes from the entry module
return this.fetchModule( this.entry, undefined )
.then( entryModule => {
const defaultExport = entryModule.exports.default;
@ -118,13 +84,14 @@ export default class Bundle {
}
}
return entryModule.expandAllStatements( true );
return entryModule.markAllStatements( true );
})
.then( () => {
return this.markAllModifierStatements();
})
.then( statements => {
this.statements = statements;
.then( () => {
this.statements = this.sort();
this.deconflict();
this.orderedStatements = this.sort();
});
}
@ -213,96 +180,37 @@ export default class Bundle {
}
}
sort () {
let seen = {};
let ordered = [];
let hasCycles;
let strongDeps = {};
let stronglyDependsOn = {};
function visit ( module ) {
seen[ module.id ] = true;
const { strongDependencies, weakDependencies } = module.consolidateDependencies();
strongDeps[ module.id ] = [];
stronglyDependsOn[ module.id ] = {};
keys( strongDependencies ).forEach( id => {
const imported = strongDependencies[ id ];
strongDeps[ module.id ].push( imported );
if ( seen[ id ] ) {
// we need to prevent an infinite loop, and note that
// we need to check for strong/weak dependency relationships
hasCycles = true;
return;
}
visit( imported );
});
keys( weakDependencies ).forEach( id => {
const imported = weakDependencies[ id ];
fetchModule ( importee, importer ) {
return Promise.resolve( this.resolveId( importee, importer, this.resolveOptions ) )
.then( id => {
if ( !id ) {
// external module
if ( !this.modulePromises[ importee ] ) {
const module = new ExternalModule( importee );
this.externalModules.push( module );
this.modulePromises[ importee ] = Promise.resolve( module );
}
if ( seen[ id ] ) {
// we need to prevent an infinite loop, and note that
// we need to check for strong/weak dependency relationships
hasCycles = true;
return;
return this.modulePromises[ importee ];
}
visit( imported );
});
// add second (and third...) order dependencies
function addStrongDependencies ( dependency ) {
if ( stronglyDependsOn[ module.id ][ dependency.id ] ) return;
stronglyDependsOn[ module.id ][ dependency.id ] = true;
strongDeps[ dependency.id ].forEach( addStrongDependencies );
}
strongDeps[ module.id ].forEach( addStrongDependencies );
ordered.push( module );
}
visit( this.entryModule );
if ( hasCycles ) {
let unordered = ordered;
ordered = [];
// unordered is actually semi-ordered, as [ fewer dependencies ... more dependencies ]
unordered.forEach( module => {
// ensure strong dependencies of `module` that don't strongly depend on `module` go first
strongDeps[ module.id ].forEach( place );
if ( !this.modulePromises[ id ] ) {
this.modulePromises[ id ] = Promise.resolve( this.load( id, this.loadOptions ) )
.then( source => {
const module = new Module({
id,
source,
bundle: this
});
function place ( dep ) {
if ( !stronglyDependsOn[ dep.id ][ module.id ] && !~ordered.indexOf( dep ) ) {
strongDeps[ dep.id ].forEach( place );
ordered.push( dep );
}
}
this.modules.push( module );
if ( !~ordered.indexOf( module ) ) {
ordered.push( module );
return module;
});
}
});
}
let statements = [];
ordered.forEach( module => {
module.statements.forEach( statement => {
if ( statement.isIncluded ) statements.push( statement );
return this.modulePromises[ id ];
});
});
return statements;
}
generate ( options = {} ) {
@ -352,7 +260,7 @@ export default class Bundle {
let previousIndex = -1;
let previousMargin = 0;
this.orderedStatements.forEach( statement => {
this.statements.forEach( statement => {
// skip `export { foo, bar, baz }`
if ( statement.node.type === 'ExportNamedDeclaration' ) {
// skip `export { foo, bar, baz }`
@ -498,4 +406,145 @@ export default class Bundle {
return { code, map };
}
markAllModifierStatements () {
let settled = true;
let promises = [];
this.modules.forEach( module => {
module.statements.forEach( statement => {
if ( statement.isIncluded ) return;
keys( statement.modifies ).forEach( name => {
const definingStatement = module.definitions[ name ];
const exportDeclaration = module.exports[ name ];
const shouldMark = ( definingStatement && definingStatement.isIncluded ) ||
( exportDeclaration && exportDeclaration.isUsed );
if ( shouldMark ) {
settled = false;
promises.push( statement.mark() );
return;
}
// special case - https://github.com/rollup/rollup/pull/40
const importDeclaration = module.imports[ name ];
if ( !importDeclaration ) return;
const promise = Promise.resolve( importDeclaration.module || this.fetchModule( importDeclaration.source, module.id ) )
.then( module => {
importDeclaration.module = module;
const exportDeclaration = module.exports[ importDeclaration.name ];
// TODO things like `export default a + b` don't apply here... right?
return module.findDefiningStatement( exportDeclaration.localName );
})
.then( definingStatement => {
if ( !definingStatement ) return;
settled = false;
return statement.mark();
});
promises.push( promise );
});
});
});
return Promise.all( promises ).then( () => {
if ( !settled ) return this.markAllModifierStatements();
});
}
sort () {
let seen = {};
let ordered = [];
let hasCycles;
let strongDeps = {};
let stronglyDependsOn = {};
function visit ( module ) {
seen[ module.id ] = true;
const { strongDependencies, weakDependencies } = module.consolidateDependencies();
strongDeps[ module.id ] = [];
stronglyDependsOn[ module.id ] = {};
keys( strongDependencies ).forEach( id => {
const imported = strongDependencies[ id ];
strongDeps[ module.id ].push( imported );
if ( seen[ id ] ) {
// we need to prevent an infinite loop, and note that
// we need to check for strong/weak dependency relationships
hasCycles = true;
return;
}
visit( imported );
});
keys( weakDependencies ).forEach( id => {
const imported = weakDependencies[ id ];
if ( seen[ id ] ) {
// we need to prevent an infinite loop, and note that
// we need to check for strong/weak dependency relationships
hasCycles = true;
return;
}
visit( imported );
});
// add second (and third...) order dependencies
function addStrongDependencies ( dependency ) {
if ( stronglyDependsOn[ module.id ][ dependency.id ] ) return;
stronglyDependsOn[ module.id ][ dependency.id ] = true;
strongDeps[ dependency.id ].forEach( addStrongDependencies );
}
strongDeps[ module.id ].forEach( addStrongDependencies );
ordered.push( module );
}
visit( this.entryModule );
if ( hasCycles ) {
let unordered = ordered;
ordered = [];
// unordered is actually semi-ordered, as [ fewer dependencies ... more dependencies ]
unordered.forEach( module => {
// ensure strong dependencies of `module` that don't strongly depend on `module` go first
strongDeps[ module.id ].forEach( place );
function place ( dep ) {
if ( !stronglyDependsOn[ dep.id ][ module.id ] && !~ordered.indexOf( dep ) ) {
strongDeps[ dep.id ].forEach( place );
ordered.push( dep );
}
}
if ( !~ordered.indexOf( module ) ) {
ordered.push( module );
}
});
}
let statements = [];
ordered.forEach( module => {
module.statements.forEach( statement => {
if ( statement.isIncluded ) statements.push( statement );
});
});
return statements;
}
}

8
src/ExternalModule.js
View File

@ -15,6 +15,10 @@ export default class ExternalModule {
this.needsNamed = false;
}
findDefiningStatement () {
return null;
}
getCanonicalName ( name ) {
if ( name === 'default' ) {
return this.needsNamed ? `${this.name}__default` : this.name;
@ -37,8 +41,4 @@ export default class ExternalModule {
this.suggestedNames[ exportName ] = suggestion;
}
}
findDefiningStatement () {
return null;
}
}

366
src/Module.js
View File

@ -37,194 +37,143 @@ export default class Module {
this.suggestedNames = blank();
this.comments = [];
// Try to extract a list of top-level statements/declarations. If
// the parse fails, attach file info and abort
let ast;
this.statements = this._parse();
try {
ast = parse( source, {
ecmaVersion: 6,
sourceType: 'module',
onComment: ( block, text, start, end ) => this.comments.push({ block, text, start, end })
});
} catch ( err ) {
err.code = 'PARSE_ERROR';
err.file = id; // see above - not necessarily true, but true enough
throw err;
}
// imports and exports, indexed by ID
this.imports = blank();
this.exports = blank();
walk( ast, {
enter: node => {
this.magicString.addSourcemapLocation( node.start );
this.magicString.addSourcemapLocation( node.end );
}
});
this.canonicalNames = blank();
this.statements = [];
this.definitions = blank();
this.definitionPromises = blank();
this.modifications = blank();
ast.body.map( node => {
// special case - top-level var declarations with multiple declarators
// should be split up. Otherwise, we may end up including code we
// don't need, just because an unwanted declarator is included
if ( node.type === 'VariableDeclaration' && node.declarations.length > 1 ) {
node.declarations.forEach( declarator => {
const magicString = this.magicString.snip( declarator.start, declarator.end ).trim();
magicString.prepend( `${node.kind} ` ).append( ';' );
this.analyse();
}
const syntheticNode = {
type: 'VariableDeclaration',
kind: node.kind,
start: node.start,
end: node.end,
declarations: [ declarator ]
addExport ( statement ) {
const node = statement.node;
const source = node.source && node.source.value;
// export default function foo () {}
// export default foo;
// export default 42;
if ( node.type === 'ExportDefaultDeclaration' ) {
const isDeclaration = /Declaration$/.test( node.declaration.type );
const isAnonymous = /(?:Class|Function)Expression$/.test( node.declaration.type );
const declaredName = isDeclaration && node.declaration.id.name;
const identifier = node.declaration.type === 'Identifier' && node.declaration.name;
this.exports.default = {
statement,
name: 'default',
localName: declaredName || 'default',
declaredName,
identifier,
isDeclaration,
isAnonymous,
isModified: false // in case of `export default foo; foo = somethingElse`
};
}
// export { foo, bar, baz }
// export var foo = 42;
// export function foo () {}
else if ( node.type === 'ExportNamedDeclaration' ) {
if ( node.specifiers.length ) {
// export { foo, bar, baz }
node.specifiers.forEach( specifier => {
const localName = specifier.local.name;
const exportedName = specifier.exported.name;
this.exports[ exportedName ] = {
localName,
exportedName
};
const statement = new Statement( syntheticNode, magicString, this, this.statements.length );
this.statements.push( statement );
// export { foo } from './foo';
if ( source ) {
this.imports[ localName ] = {
source,
localName,
name: localName
};
}
});
}
else {
const magicString = this.magicString.snip( node.start, node.end ).trim();
const statement = new Statement( node, magicString, this, this.statements.length );
this.statements.push( statement );
}
});
this.importDeclarations = this.statements.filter( isImportDeclaration );
this.exportDeclarations = this.statements.filter( isExportDeclaration );
this.analyse();
}
analyse () {
// imports and exports, indexed by ID
this.imports = blank();
this.exports = blank();
this.importDeclarations.forEach( statement => {
const node = statement.node;
const source = node.source.value;
node.specifiers.forEach( specifier => {
const isDefault = specifier.type === 'ImportDefaultSpecifier';
const isNamespace = specifier.type === 'ImportNamespaceSpecifier';
let declaration = node.declaration;
const localName = specifier.local.name;
const name = isDefault ? 'default' : isNamespace ? '*' : specifier.imported.name;
let name;
if ( this.imports[ localName ] ) {
const err = new Error( `Duplicated import '${localName}'` );
err.file = this.id;
err.loc = getLocation( this.source, specifier.start );
throw err;
if ( declaration.type === 'VariableDeclaration' ) {
// export var foo = 42
name = declaration.declarations[0].id.name;
} else {
// export function foo () {}
name = declaration.id.name;
}
this.imports[ localName ] = {
source,
name,
localName
};
});
});
this.exportDeclarations.forEach( statement => {
const node = statement.node;
const source = node.source && node.source.value;
// export default function foo () {}
// export default foo;
// export default 42;
if ( node.type === 'ExportDefaultDeclaration' ) {
const isDeclaration = /Declaration$/.test( node.declaration.type );
const isAnonymous = /(?:Class|Function)Expression$/.test( node.declaration.type );
const declaredName = isDeclaration && node.declaration.id.name;
const identifier = node.declaration.type === 'Identifier' && node.declaration.name;
this.exports.default = {
this.exports[ name ] = {
statement,
name: 'default',
localName: declaredName || 'default',
declaredName,
identifier,
isDeclaration,
isAnonymous,
isModified: false // in case of `export default foo; foo = somethingElse`
localName: name,
expression: declaration
};
}
}
}
// export { foo, bar, baz }
// export var foo = 42;
// export function foo () {}
else if ( node.type === 'ExportNamedDeclaration' ) {
if ( node.specifiers.length ) {
// export { foo, bar, baz }
node.specifiers.forEach( specifier => {
const localName = specifier.local.name;
const exportedName = specifier.exported.name;
this.exports[ exportedName ] = {
localName,
exportedName
};
addImport ( statement ) {
const node = statement.node;
const source = node.source.value;
// export { foo } from './foo';
if ( source ) {
this.imports[ localName ] = {
source,
localName,
name: localName
};
}
});
}
node.specifiers.forEach( specifier => {
const isDefault = specifier.type === 'ImportDefaultSpecifier';
const isNamespace = specifier.type === 'ImportNamespaceSpecifier';
else {
let declaration = node.declaration;
const localName = specifier.local.name;
const name = isDefault ? 'default' : isNamespace ? '*' : specifier.imported.name;
let name;
if ( this.imports[ localName ] ) {
const err = new Error( `Duplicated import '${localName}'` );
err.file = this.id;
err.loc = getLocation( this.source, specifier.start );
throw err;
}
if ( declaration.type === 'VariableDeclaration' ) {
// export var foo = 42
name = declaration.declarations[0].id.name;
} else {
// export function foo () {}
name = declaration.id.name;
}
this.imports[ localName ] = {
source,
name,
localName
};
});
}
this.exports[ name ] = {
statement,
localName: name,
expression: declaration
};
}
}
analyse () {
// discover this module's imports and exports
this.statements.forEach( statement => {
if ( isImportDeclaration( statement ) ) this.addImport( statement );
else if ( isExportDeclaration( statement ) ) this.addExport( statement );
});
analyse( this.magicString, this );
this.canonicalNames = blank();
this.definitions = blank();
this.definitionPromises = blank();
this.modifications = blank();
// consolidate names that are defined/modified in this module
this.statements.forEach( statement => {
keys( statement.defines ).forEach( name => {
this.definitions[ name ] = statement;
});
keys( statement.modifies ).forEach( name => {
if ( !this.modifications[ name ] ) {
this.modifications[ name ] = [];
}
this.modifications[ name ].push( statement );
( this.modifications[ name ] || ( this.modifications[ name ] = [] ) ).push( statement );
});
});
// if names are referenced that are neither defined nor imported
// in this module, we assume that they're globals
this.statements.forEach( statement => {
keys( statement.dependsOn ).forEach( name => {
if ( !this.definitions[ name ] && !this.imports[ name ] ) {
@ -271,6 +220,21 @@ export default class Module {
return { strongDependencies, weakDependencies };
}
findDefiningStatement ( name ) {
if ( this.definitions[ name ] ) return this.definitions[ name ];
// TODO what about `default`/`*`?
const importDeclaration = this.imports[ name ];
if ( !importDeclaration ) return null;
return Promise.resolve( importDeclaration.module || this.bundle.fetchModule( importDeclaration.source, this.id ) )
.then( module => {
importDeclaration.module = module;
return module.findDefiningStatement( name );
});
}
findDeclaration ( localName ) {
const importDeclaration = this.imports[ localName ];
@ -340,7 +304,7 @@ export default class Module {
return this.canonicalNames[ localName ];
}
define ( name ) {
mark ( name ) {
// shortcut cycles. TODO this won't work everywhere...
if ( this.definitionPromises[ name ] ) {
return emptyArrayPromise;
@ -392,7 +356,7 @@ export default class Module {
this.bundle.internalNamespaceModules.push( module );
}
return module.expandAllStatements();
return module.markAllStatements();
}
const exportDeclaration = module.exports[ importDeclaration.name ];
@ -401,7 +365,7 @@ export default class Module {
throw new Error( `Module ${module.id} does not export ${importDeclaration.name} (imported by ${this.id})` );
}
return module.define( exportDeclaration.localName );
return module.mark( exportDeclaration.localName );
});
}
@ -409,14 +373,14 @@ export default class Module {
else if ( name === 'default' && this.exports.default.isDeclaration ) {
// We have something like `export default foo` - so we just start again,
// searching for `foo` instead of default
promise = this.define( this.exports.default.name );
promise = this.mark( this.exports.default.name );
}
else {
let statement;
statement = name === 'default' ? this.exports.default.statement : this.definitions[ name ];
promise = statement && !statement.isIncluded ? statement.expand() : emptyArrayPromise;
promise = statement && !statement.isIncluded ? statement.mark() : emptyArrayPromise;
// Special case - `export default foo; foo += 1` - need to be
// vigilant about maintaining the correct order of the export
@ -451,22 +415,9 @@ export default class Module {
return this.definitionPromises[ name ];
}
expandAllStatements ( isEntryModule ) {
let allStatements = [];
markAllStatements ( isEntryModule ) {
return sequence( this.statements, statement => {
// A statement may have already been included, in which case we need to
// curb rollup's enthusiasm and move it down here. It remains to be seen
// if this approach is bulletproof
if ( statement.isIncluded ) {
const index = allStatements.indexOf( statement );
if ( ~index ) {
allStatements.splice( index, 1 );
allStatements.push( statement );
}
return;
}
if ( statement.isIncluded ) return; // TODO can this happen? probably not...
// skip import declarations...
if ( statement.isImportDeclaration ) {
@ -476,10 +427,7 @@ export default class Module {
return this.bundle.fetchModule( statement.node.source.value, this.id )
.then( module => {
statement.module = module;
return module.expandAllStatements();
})
.then( statements => {
allStatements.push.apply( allStatements, statements );
return module.markAllStatements();
});
}
@ -490,21 +438,75 @@ export default class Module {
if ( statement.node.type === 'ExportNamedDeclaration' && statement.node.specifiers.length ) {
// ...but ensure they are defined, if this is the entry module
if ( isEntryModule ) {
return statement.expand().then( statements => {
allStatements.push.apply( allStatements, statements );
});
return statement.mark();
}
return;
}
// include everything else
return statement.expand().then( statements => {
allStatements.push.apply( allStatements, statements );
return statement.mark();
});
}
// TODO rename this to parse, once https://github.com/rollup/rollup/issues/42 is fixed
_parse () {
// Try to extract a list of top-level statements/declarations. If
// the parse fails, attach file info and abort
let ast;
try {
ast = parse( this.source, {
ecmaVersion: 6,
sourceType: 'module',
onComment: ( block, text, start, end ) => this.comments.push({ block, text, start, end })
});
}).then( () => {
return allStatements;
} catch ( err ) {
err.code = 'PARSE_ERROR';
err.file = this.id; // see above - not necessarily true, but true enough
throw err;
}
walk( ast, {
enter: node => {
this.magicString.addSourcemapLocation( node.start );
this.magicString.addSourcemapLocation( node.end );
}
});
let statements = [];
ast.body.map( node => {
// special case - top-level var declarations with multiple declarators
// should be split up. Otherwise, we may end up including code we
// don't need, just because an unwanted declarator is included
if ( node.type === 'VariableDeclaration' && node.declarations.length > 1 ) {
node.declarations.forEach( declarator => {
const magicString = this.magicString.snip( declarator.start, declarator.end ).trim();
magicString.prepend( `${node.kind} ` ).append( ';' );
const syntheticNode = {
type: 'VariableDeclaration',
kind: node.kind,
start: node.start,
end: node.end,
declarations: [ declarator ]
};
const statement = new Statement( syntheticNode, magicString, this, statements.length );
statements.push( statement );
});
}
else {
const magicString = this.magicString.snip( node.start, node.end ).trim();
const statement = new Statement( node, magicString, this, statements.length );
statements.push( statement );
}
});
return statements;
}
rename ( name, replacement ) {

46
src/Statement.js
View File

@ -234,52 +234,16 @@ export default class Statement {
}
}
expand () {
this.isIncluded = true; // prevent statement being included twice
mark () {
if ( this.included ) return; // prevent infinite loops
this.isIncluded = true;
let result = [];
// We have a statement, and it hasn't been included yet. First, include
// the statements it depends on
const dependencies = Object.keys( this.dependsOn );
return sequence( dependencies, name => {
if ( this.defines[ name ] ) return; // TODO maybe exclude from `this.dependsOn` in the first place?
return this.module.define( name ).then( definition => {
result.push.apply( result, definition );
});
})
// then include the statement itself
.then( () => {
result.push( this );
})
// then include any statements that could modify the
// thing(s) this statement defines
.then( () => {
return sequence( keys( this.defines ), name => {
const modifications = this.module.modifications[ name ];
if ( modifications ) {
return sequence( modifications, statement => {
if ( !statement.isIncluded ) {
return statement.expand()
.then( statements => {
result.push.apply( result, statements );
});
}
});
}
});
})
// the `result` is an array of all statements that need
// to be included if this one is
.then( () => {
return result;
});
return this.module.mark( name );
});
}
replaceIdentifiers ( names, bundleExports ) {

10
src/ast/Scope.js
View File

@ -43,11 +43,6 @@ export default class Scope {
}
}
getDeclaration ( name ) {
return this.declarations[ name ] ||
this.parent && this.parent.getDeclaration( name );
}
contains ( name ) {
return !!this.getDeclaration( name );
}
@ -63,4 +58,9 @@ export default class Scope {
return null;
}
getDeclaration ( name ) {
return this.declarations[ name ] ||
this.parent && this.parent.getDeclaration( name );
}
}

3
test/function/top-level-side-effects-are-preserved/_config.js
View File

@ -0,0 +1,3 @@
module.exports = {
description: 'top level side effects are preserved'
};

1
test/function/top-level-side-effects-are-preserved/asap.js
View File

@ -0,0 +1 @@
export default function asap() {}

1
test/function/top-level-side-effects-are-preserved/config.js
View File

@ -0,0 +1 @@
export const config = {};

5
test/function/top-level-side-effects-are-preserved/defer.js
View File

@ -0,0 +1,5 @@
import { config } from './config';
export default function defer() {
config.async();
}

3
test/function/top-level-side-effects-are-preserved/main.js
View File

@ -0,0 +1,3 @@
import { defer } from './rsvp';
defer();

7
test/function/top-level-side-effects-are-preserved/rsvp.js
View File

@ -0,0 +1,7 @@
import { config } from './config';
import asap from './asap';
import defer from './defer';
config.async = asap;
export { defer };
Write Preview
Loading…
Cancel
Save