76 lines
3.3 KiB
Go
76 lines
3.3 KiB
Go
package fourslash_test
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import (
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"testing"
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"github.com/microsoft/typescript-go/internal/fourslash"
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"github.com/microsoft/typescript-go/internal/testutil"
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)
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func TestGoToSourcePropertyAccessNoDeclaration(t *testing.T) {
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t.Parallel()
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defer testutil.RecoverAndFail(t, "Panic on fourslash test")
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// When a property exists only via a mapped type in the .d.ts, the checker
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// returns no declarations. The source definition resolver should still
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// navigate to the property in the .js file by finding the module specifier
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// from the parent expression's import declaration.
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const content = `// @moduleResolution: bundler
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// @Filename: /home/src/workspaces/project/node_modules/pkg/package.json
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{ "name": "pkg", "main": "./index.js", "types": "./index.d.ts" }
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.d.ts
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type Keys = "alpha" | "beta";
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export declare const config: { [K in Keys]: string };
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.js
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export const config = { /*targetAlpha*/alpha: "a", /*targetBeta*/beta: "b" };
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// @Filename: /home/src/workspaces/project/index.ts
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import { config } from "pkg";
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config./*accessAlpha*/alpha;
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config./*accessBeta*/beta;`
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f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
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defer done()
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f.VerifyBaselineGoToSourceDefinition(t, "accessAlpha", "accessBeta")
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}
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func TestGoToSourcePropertyAccessDeepChain(t *testing.T) {
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t.Parallel()
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defer testutil.RecoverAndFail(t, "Panic on fourslash test")
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// Deep property access chain: import * as ns; ns.obj.prop
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// where the intermediate object has no declaration but the root
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// identifier can be traced back to its import.
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const content = `// @moduleResolution: bundler
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// @Filename: /home/src/workspaces/project/node_modules/pkg/package.json
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{ "name": "pkg", "main": "./index.js", "types": "./index.d.ts" }
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.d.ts
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export declare const nested: { inner: { value: number } };
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.js
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export const nested = { inner: { /*targetValue*/value: 42 } };
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// @Filename: /home/src/workspaces/project/index.ts
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import { nested } from "pkg";
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nested.inner./*accessValue*/value;`
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f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
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defer done()
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f.VerifyBaselineGoToSourceDefinition(t, "accessValue")
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}
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func TestGoToSourcePropertyAccessNamespaceImport(t *testing.T) {
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t.Parallel()
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defer testutil.RecoverAndFail(t, "Panic on fourslash test")
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// import * as ns from "pkg"; ns.thing — where "thing" has no declarations
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// from the checker (e.g. module augmentation or dynamic).
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const content = `// @moduleResolution: bundler
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// @Filename: /home/src/workspaces/project/node_modules/pkg/package.json
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{ "name": "pkg", "main": "./index.js", "types": "./index.d.ts" }
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.d.ts
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type Keys = "x" | "y";
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export declare const coords: { [K in Keys]: number };
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// @Filename: /home/src/workspaces/project/node_modules/pkg/index.js
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export const coords = { /*targetX*/x: 10, /*targetY*/y: 20 };
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// @Filename: /home/src/workspaces/project/index.ts
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import { coords } from "pkg";
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coords./*accessX*/x;
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coords./*accessY*/y;`
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f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
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defer done()
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f.VerifyBaselineGoToSourceDefinition(t, "accessX", "accessY")
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}
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