Line break in module declaration causes compile time error · Microsoft/TypeScript#11167

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BugDomain: ParserHelp Wanted

説明

TypeScript Version: 2.0.3

A line break in the declaration of a module causes a compile time error. This could either be that the language specification isn't clear that this is illegal or a bug.

Code

// Example declaration with line break
declare module 
     my.very.long.name.foo.bar.baz.able.baker {}

Expected behavior: I don't see anything in the language specification that would make this a compile time error, so I would expect the statement to work as if declaration was all on one line, ie:

// Example declaration with line break
declare module my.very.long.name.foo.bar.baz.able.baker {}

Actual behavior:

A compile time error, in particular: (1, 9): error TS1005: ';' expected.

コントリビューターガイド

技術スタック: typescript
領域: tooling
Issue 種別: bug
難度: 3
推定時間: 1-3 hours
活動状況: stale
明確さ: clear
前提条件: basic knowledge of TypeScript compiler parsing
初心者向け度: 30
調査方針: Investigate the TypeScript scanner (src/compiler/scanner.ts) or parser (src/compiler/parser.ts) to understand how line breaks are handled between 'declare' and 'module'. Compare with other declarations like 'function' or 'class'. Look for any token separation logic that might treat newline as a statement separator. The fix likely involves modifying the scanner to allow line breaks in module name tokens.