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Refactor narrow type by instance of #3064
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| //// [narrowTypeByInstanceof.ts] | ||
| class Match { | ||
| public range(): any { | ||
| return undefined; | ||
| } | ||
| } | ||
|
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| class FileMatch { | ||
| public resource(): any { | ||
| return undefined; | ||
| } | ||
| } | ||
|
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| type FileMatchOrMatch = FileMatch | Match; | ||
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|
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| let elementA: FileMatchOrMatch, elementB: FileMatchOrMatch; | ||
|
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| if (elementA instanceof FileMatch && elementB instanceof FileMatch) { | ||
| let a = elementA.resource().path; | ||
| let b = elementB.resource().path; | ||
| } else if (elementA instanceof Match && elementB instanceof Match) { | ||
| let a = elementA.range(); | ||
| let b = elementB.range(); | ||
| } | ||
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|
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| //// [narrowTypeByInstanceof.js] | ||
| var Match = (function () { | ||
| function Match() { | ||
| } | ||
| Match.prototype.range = function () { | ||
| return undefined; | ||
| }; | ||
| return Match; | ||
| })(); | ||
| var FileMatch = (function () { | ||
| function FileMatch() { | ||
| } | ||
| FileMatch.prototype.resource = function () { | ||
| return undefined; | ||
| }; | ||
| return FileMatch; | ||
| })(); | ||
| var elementA, elementB; | ||
| if (elementA instanceof FileMatch && elementB instanceof FileMatch) { | ||
| var a = elementA.resource().path; | ||
| var b = elementB.resource().path; | ||
| } | ||
| else if (elementA instanceof Match && elementB instanceof Match) { | ||
| var a = elementA.range(); | ||
| var b = elementB.range(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| === tests/cases/compiler/narrowTypeByInstanceof.ts === | ||
| class Match { | ||
| >Match : Symbol(Match, Decl(narrowTypeByInstanceof.ts, 0, 0)) | ||
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| public range(): any { | ||
| >range : Symbol(range, Decl(narrowTypeByInstanceof.ts, 0, 17)) | ||
|
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| return undefined; | ||
| >undefined : Symbol(undefined) | ||
| } | ||
| } | ||
|
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| class FileMatch { | ||
| >FileMatch : Symbol(FileMatch, Decl(narrowTypeByInstanceof.ts, 4, 5)) | ||
|
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| public resource(): any { | ||
| >resource : Symbol(resource, Decl(narrowTypeByInstanceof.ts, 6, 21)) | ||
|
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| return undefined; | ||
| >undefined : Symbol(undefined) | ||
| } | ||
| } | ||
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| type FileMatchOrMatch = FileMatch | Match; | ||
| >FileMatchOrMatch : Symbol(FileMatchOrMatch, Decl(narrowTypeByInstanceof.ts, 10, 5)) | ||
| >FileMatch : Symbol(FileMatch, Decl(narrowTypeByInstanceof.ts, 4, 5)) | ||
| >Match : Symbol(Match, Decl(narrowTypeByInstanceof.ts, 0, 0)) | ||
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| let elementA: FileMatchOrMatch, elementB: FileMatchOrMatch; | ||
| >elementA : Symbol(elementA, Decl(narrowTypeByInstanceof.ts, 15, 3)) | ||
| >FileMatchOrMatch : Symbol(FileMatchOrMatch, Decl(narrowTypeByInstanceof.ts, 10, 5)) | ||
| >elementB : Symbol(elementB, Decl(narrowTypeByInstanceof.ts, 15, 31)) | ||
| >FileMatchOrMatch : Symbol(FileMatchOrMatch, Decl(narrowTypeByInstanceof.ts, 10, 5)) | ||
|
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| if (elementA instanceof FileMatch && elementB instanceof FileMatch) { | ||
| >elementA : Symbol(elementA, Decl(narrowTypeByInstanceof.ts, 15, 3)) | ||
| >FileMatch : Symbol(FileMatch, Decl(narrowTypeByInstanceof.ts, 4, 5)) | ||
| >elementB : Symbol(elementB, Decl(narrowTypeByInstanceof.ts, 15, 31)) | ||
| >FileMatch : Symbol(FileMatch, Decl(narrowTypeByInstanceof.ts, 4, 5)) | ||
|
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| let a = elementA.resource().path; | ||
| >a : Symbol(a, Decl(narrowTypeByInstanceof.ts, 18, 7)) | ||
| >elementA.resource : Symbol(FileMatch.resource, Decl(narrowTypeByInstanceof.ts, 6, 21)) | ||
| >elementA : Symbol(elementA, Decl(narrowTypeByInstanceof.ts, 15, 3)) | ||
| >resource : Symbol(FileMatch.resource, Decl(narrowTypeByInstanceof.ts, 6, 21)) | ||
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| let b = elementB.resource().path; | ||
| >b : Symbol(b, Decl(narrowTypeByInstanceof.ts, 19, 7)) | ||
| >elementB.resource : Symbol(FileMatch.resource, Decl(narrowTypeByInstanceof.ts, 6, 21)) | ||
| >elementB : Symbol(elementB, Decl(narrowTypeByInstanceof.ts, 15, 31)) | ||
| >resource : Symbol(FileMatch.resource, Decl(narrowTypeByInstanceof.ts, 6, 21)) | ||
|
|
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| } else if (elementA instanceof Match && elementB instanceof Match) { | ||
| >elementA : Symbol(elementA, Decl(narrowTypeByInstanceof.ts, 15, 3)) | ||
| >Match : Symbol(Match, Decl(narrowTypeByInstanceof.ts, 0, 0)) | ||
| >elementB : Symbol(elementB, Decl(narrowTypeByInstanceof.ts, 15, 31)) | ||
| >Match : Symbol(Match, Decl(narrowTypeByInstanceof.ts, 0, 0)) | ||
|
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| let a = elementA.range(); | ||
| >a : Symbol(a, Decl(narrowTypeByInstanceof.ts, 21, 7)) | ||
| >elementA.range : Symbol(Match.range, Decl(narrowTypeByInstanceof.ts, 0, 17)) | ||
| >elementA : Symbol(elementA, Decl(narrowTypeByInstanceof.ts, 15, 3)) | ||
| >range : Symbol(Match.range, Decl(narrowTypeByInstanceof.ts, 0, 17)) | ||
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| let b = elementB.range(); | ||
| >b : Symbol(b, Decl(narrowTypeByInstanceof.ts, 22, 7)) | ||
| >elementB.range : Symbol(Match.range, Decl(narrowTypeByInstanceof.ts, 0, 17)) | ||
| >elementB : Symbol(elementB, Decl(narrowTypeByInstanceof.ts, 15, 31)) | ||
| >range : Symbol(Match.range, Decl(narrowTypeByInstanceof.ts, 0, 17)) | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| === tests/cases/compiler/narrowTypeByInstanceof.ts === | ||
| class Match { | ||
| >Match : Match | ||
|
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| public range(): any { | ||
| >range : () => any | ||
|
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| return undefined; | ||
| >undefined : undefined | ||
| } | ||
| } | ||
|
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| class FileMatch { | ||
| >FileMatch : FileMatch | ||
|
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| public resource(): any { | ||
| >resource : () => any | ||
|
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| return undefined; | ||
| >undefined : undefined | ||
| } | ||
| } | ||
|
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| type FileMatchOrMatch = FileMatch | Match; | ||
| >FileMatchOrMatch : Match | FileMatch | ||
| >FileMatch : FileMatch | ||
| >Match : Match | ||
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|
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| let elementA: FileMatchOrMatch, elementB: FileMatchOrMatch; | ||
| >elementA : Match | FileMatch | ||
| >FileMatchOrMatch : Match | FileMatch | ||
| >elementB : Match | FileMatch | ||
| >FileMatchOrMatch : Match | FileMatch | ||
|
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| if (elementA instanceof FileMatch && elementB instanceof FileMatch) { | ||
| >elementA instanceof FileMatch && elementB instanceof FileMatch : boolean | ||
| >elementA instanceof FileMatch : boolean | ||
| >elementA : Match | FileMatch | ||
| >FileMatch : typeof FileMatch | ||
| >elementB instanceof FileMatch : boolean | ||
| >elementB : Match | FileMatch | ||
| >FileMatch : typeof FileMatch | ||
|
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| let a = elementA.resource().path; | ||
| >a : any | ||
| >elementA.resource().path : any | ||
| >elementA.resource() : any | ||
| >elementA.resource : () => any | ||
| >elementA : FileMatch | ||
| >resource : () => any | ||
| >path : any | ||
|
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| let b = elementB.resource().path; | ||
| >b : any | ||
| >elementB.resource().path : any | ||
| >elementB.resource() : any | ||
| >elementB.resource : () => any | ||
| >elementB : FileMatch | ||
| >resource : () => any | ||
| >path : any | ||
|
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||
| } else if (elementA instanceof Match && elementB instanceof Match) { | ||
| >elementA instanceof Match && elementB instanceof Match : boolean | ||
| >elementA instanceof Match : boolean | ||
| >elementA : Match | FileMatch | ||
| >Match : typeof Match | ||
| >elementB instanceof Match : boolean | ||
| >elementB : Match | FileMatch | ||
| >Match : typeof Match | ||
|
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| let a = elementA.range(); | ||
| >a : any | ||
| >elementA.range() : any | ||
| >elementA.range : () => any | ||
| >elementA : Match | ||
| >range : () => any | ||
|
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| let b = elementB.range(); | ||
| >b : any | ||
| >elementB.range() : any | ||
| >elementB.range : () => any | ||
| >elementB : Match | ||
| >range : () => any | ||
| } | ||
|
|
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Put an extra newline here so it looks separate from the prior two conditions