Symlinks not resolved for /// <reference path="..." /> #9091
Description
TypeScript Version:
nightly (1.9.0-dev)
Code
$ ls -alF
a/
project/
symlink -> a/
$ cat a/one.ts
import './zone';
$ cat a/zone.d.ts
declare type ZoneType = {a:string};
declare const Zone: ZoneType;
$ cat project/tsconfig.json
{
"compilerOptions": {
"module": "commonjs",
"target": "es5",
"noEmit": true,
"traceResolution": true
}
}
$ cat project/deps.d.ts
///<reference path="../symlink/zone.d.ts"/>
///<reference path="../symlink/one.ts"/>Expected behavior:
There are two ways the program may import zone.d.ts, either by resolving symlinks to ../a/zone or by using the path provided ../symlink/zone. In order to treat these as the same file, TypeScript needs to use the same path internally.
Actual behavior:
One case resolves the symlink and the other does not, causing the declarations in the file to conflict with themselves:
$ tsc -p project
======== Resolving module './zone' from '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/one.ts'. ========
Module resolution kind is not specified, using 'NodeJs'.
Loading module as file / folder, candidate module location '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/zone'.
File '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/zone.ts' does not exist.
File '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/zone.tsx' does not exist.
File '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/zone.d.ts' exist - use it as a name resolution result.
Resolving real path for '/usr/local/google/home/alexeagle/repro_pathmapping_zone/symlink/zone.d.ts', result '/usr/local/google/home/alexeagle/repro_pathmapping_zone/a/zone.d.ts'
======== Module name './zone' was successfully resolved to '/usr/local/google/home/alexeagle/repro_pathmapping_zone/a/zone.d.ts'. ========
a/zone.d.ts(1,14): error TS2300: Duplicate identifier 'ZoneType'.
a/zone.d.ts(2,15): error TS2451: Cannot redeclare block-scoped variable 'Zone'.
symlink/zone.d.ts(1,14): error TS2300: Duplicate identifier 'ZoneType'.
symlink/zone.d.ts(2,15): error TS2451: Cannot redeclare block-scoped variable 'Zone'.
with @vikerman