How to create a package with the isolatedModules=true option enabled?
In a file where I export all the classes of my package on lines like the following:
export {default as BoundList, IBoundListOption, TBoundListFilterFn} from './list/BoundList';
errors of the form are generated:
TS1205: Cannot re-export a type when the '--isolatedModules' flag is provided.
How do I export classes now?
This problem occurred in CRA2.1. There was forced to isolatedModules=true.
I'm making a component library on CRA2.1
reactjs typescript babeljs create-react-app
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
add a comment |
In a file where I export all the classes of my package on lines like the following:
export {default as BoundList, IBoundListOption, TBoundListFilterFn} from './list/BoundList';
errors of the form are generated:
TS1205: Cannot re-export a type when the '--isolatedModules' flag is provided.
How do I export classes now?
This problem occurred in CRA2.1. There was forced to isolatedModules=true.
I'm making a component library on CRA2.1
reactjs typescript babeljs create-react-app
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06
add a comment |
In a file where I export all the classes of my package on lines like the following:
export {default as BoundList, IBoundListOption, TBoundListFilterFn} from './list/BoundList';
errors of the form are generated:
TS1205: Cannot re-export a type when the '--isolatedModules' flag is provided.
How do I export classes now?
This problem occurred in CRA2.1. There was forced to isolatedModules=true.
I'm making a component library on CRA2.1
reactjs typescript babeljs create-react-app
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
In a file where I export all the classes of my package on lines like the following:
export {default as BoundList, IBoundListOption, TBoundListFilterFn} from './list/BoundList';
errors of the form are generated:
TS1205: Cannot re-export a type when the '--isolatedModules' flag is provided.
How do I export classes now?
This problem occurred in CRA2.1. There was forced to isolatedModules=true.
I'm making a component library on CRA2.1
reactjs typescript babeljs create-react-app
reactjs typescript babeljs create-react-app
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
edited Dec 4 '18 at 18:55
Justin Grant
33.9k898155
33.9k898155
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
asked Nov 23 '18 at 9:58
Khusamov Sukhrob
97110
97110
github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06
add a comment |
github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06
github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06
github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06
add a comment |
2 Answers
2
active
oldest
votes
github.com/babel/babel-loader/issues/603 (thanks to @CollinD for the link) includes a workaround for how to re-export imported types. This comment on that issue has the best explanation of a workaround:
You can still do are-export if it's clear that you're exporting a type:
import { T as a_T } from "./a";
export type T = a_T;
You can also do export * from "./a";.
If I'm reading that GitHub issue correctly, only TS types can be re-exported, but values (e.g. classes) can't be re-exported. So if TS knows that you're importing a type (not a class) then you can re-export it.
Here's another example that's simpler:
import { T } from "./a";
export type T = T;
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
add a comment |
Yes - node_modules/fork-ts-checker-webpack-plugin/package.json is "version": "0.2.2".
It seems the change was made in Microsoft/TypeScript#15538 , so if you test with 2.3 you wouldn't see the error. But it will start breaking when 2.4 is released.
Still, none of this should be an issue if isolatedModules is overriden to true.
answered Dec 10 '18 at 12:14
Singham
474
add a comment |
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2 Answers
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active
oldest
votes
2 Answers
2
active
oldest
votes
active
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active
oldest
votes
github.com/babel/babel-loader/issues/603 (thanks to @CollinD for the link) includes a workaround for how to re-export imported types. This comment on that issue has the best explanation of a workaround:
You can still do are-export if it's clear that you're exporting a type:
import { T as a_T } from "./a";
export type T = a_T;
You can also do export * from "./a";.
If I'm reading that GitHub issue correctly, only TS types can be re-exported, but values (e.g. classes) can't be re-exported. So if TS knows that you're importing a type (not a class) then you can re-export it.
Here's another example that's simpler:
import { T } from "./a";
export type T = T;
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
add a comment |
github.com/babel/babel-loader/issues/603 (thanks to @CollinD for the link) includes a workaround for how to re-export imported types. This comment on that issue has the best explanation of a workaround:
You can still do are-export if it's clear that you're exporting a type:
import { T as a_T } from "./a";
export type T = a_T;
You can also do export * from "./a";.
If I'm reading that GitHub issue correctly, only TS types can be re-exported, but values (e.g. classes) can't be re-exported. So if TS knows that you're importing a type (not a class) then you can re-export it.
Here's another example that's simpler:
import { T } from "./a";
export type T = T;
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
add a comment |
github.com/babel/babel-loader/issues/603 (thanks to @CollinD for the link) includes a workaround for how to re-export imported types. This comment on that issue has the best explanation of a workaround:
You can still do are-export if it's clear that you're exporting a type:
import { T as a_T } from "./a";
export type T = a_T;
You can also do export * from "./a";.
If I'm reading that GitHub issue correctly, only TS types can be re-exported, but values (e.g. classes) can't be re-exported. So if TS knows that you're importing a type (not a class) then you can re-export it.
Here's another example that's simpler:
import { T } from "./a";
export type T = T;
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
github.com/babel/babel-loader/issues/603 (thanks to @CollinD for the link) includes a workaround for how to re-export imported types. This comment on that issue has the best explanation of a workaround:
You can still do are-export if it's clear that you're exporting a type:
import { T as a_T } from "./a";
export type T = a_T;
You can also do export * from "./a";.
If I'm reading that GitHub issue correctly, only TS types can be re-exported, but values (e.g. classes) can't be re-exported. So if TS knows that you're importing a type (not a class) then you can re-export it.
Here's another example that's simpler:
import { T } from "./a";
export type T = T;
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
answered Dec 13 '18 at 6:24
Justin Grant
33.9k898155
33.9k898155
add a comment |
add a comment |
Yes - node_modules/fork-ts-checker-webpack-plugin/package.json is "version": "0.2.2".
It seems the change was made in Microsoft/TypeScript#15538 , so if you test with 2.3 you wouldn't see the error. But it will start breaking when 2.4 is released.
Still, none of this should be an issue if isolatedModules is overriden to true.
answered Dec 10 '18 at 12:14
Singham
474
add a comment |
Yes - node_modules/fork-ts-checker-webpack-plugin/package.json is "version": "0.2.2".
It seems the change was made in Microsoft/TypeScript#15538 , so if you test with 2.3 you wouldn't see the error. But it will start breaking when 2.4 is released.
Still, none of this should be an issue if isolatedModules is overriden to true.
answered Dec 10 '18 at 12:14
Singham
474
add a comment |
Yes - node_modules/fork-ts-checker-webpack-plugin/package.json is "version": "0.2.2".
It seems the change was made in Microsoft/TypeScript#15538 , so if you test with 2.3 you wouldn't see the error. But it will start breaking when 2.4 is released.
Still, none of this should be an issue if isolatedModules is overriden to true.
answered Dec 10 '18 at 12:14
Singham
474
Yes - node_modules/fork-ts-checker-webpack-plugin/package.json is "version": "0.2.2".
It seems the change was made in Microsoft/TypeScript#15538 , so if you test with 2.3 you wouldn't see the error. But it will start breaking when 2.4 is released.
Still, none of this should be an issue if isolatedModules is overriden to true.
answered Dec 10 '18 at 12:14
Singham
474
answered Dec 10 '18 at 12:14
Singham
474
answered Dec 10 '18 at 12:14
Singham
474
answered Dec 10 '18 at 12:14
Singham
474
474
add a comment |
add a comment |
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github.com/babel/babel-loader/issues/603 Looks like there's some discussion here that includes workarounds.
– CollinD
Dec 4 '18 at 19:06