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Merge pull request #27021 from ajafff/fix-functiontype-emit

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Fix FunctionType emit when only parameter has no type
This commit is contained in:
Ron Buckton
2018-09-11 01:07:43 -07:00
committed by GitHub
parent e9c6d967f6 66a401ae64
commit ba8595be5f
2 changed files with 3 additions and 2 deletions
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3
src/compiler/emitter.ts
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@@ -2818,7 +2818,8 @@ namespace ts {
const parameter = singleOrUndefined(parameters);
return parameter
&& parameter.pos === parentNode.pos // may not have parsed tokens between parent and parameter
&& !(isArrowFunction(parentNode) && parentNode.type) // arrow function may not have return type annotation
&& isArrowFunction(parentNode) // only arrow functions may have simple arrow head
&& !parentNode.type // arrow function may not have return type annotation
&& !some(parentNode.decorators) // parent may not have decorators
&& !some(parentNode.modifiers) // parent may not have modifiers
&& !some(parentNode.typeParameters) // parent may not have type parameters

2
tests/baselines/reference/printerApi/printsNodeCorrectly.functionTypes.js
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@@ -1 +1 @@
[args => any, <T>(args) => any, (...args) => any, (args?) => any, (args: any) => any, ({}) => any]
[(args) => any, <T>(args) => any, (...args) => any, (args?) => any, (args: any) => any, ({}) => any]