From 2e5f3899d185c2ba3b422710fda29151b36f13f6 Mon Sep 17 00:00:00 2001
From: Aleh Kashnikau <aleh.kashnikau@gmail.com>
Date: Thu, 10 Nov 2016 18:36:34 +0300
Subject: [PATCH 1/2] Add typecheck linter for typescript

---
 ale_linters/typescript/typecheck.vim | 47 ++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 ale_linters/typescript/typecheck.vim

diff --git a/ale_linters/typescript/typecheck.vim b/ale_linters/typescript/typecheck.vim
new file mode 100644
index 0000000..dd160d5
--- /dev/null
+++ b/ale_linters/typescript/typecheck.vim
@@ -0,0 +1,47 @@
+" Author: Prashanth Chandra https://github.com/prashcr, Aleh Kashnikau https://github.com/mkusher
+" Description: type checker for TypeScript files
+
+function! ale_linters#typescript#typecheck#Handle(buffer, lines)
+    " Matches patterns like the following:
+    "
+    " hello.ts[7, 41]: Property 'a' does not exist on type 'A'
+    " hello.ts[16, 7]: Type 'A' is not assignable to type 'B'
+    "
+    let l:pattern = '.\+.ts\[\(\d\+\), \(\d\+\)\]: \(.\+\)'
+    let l:output = []
+
+    for l:line in a:lines
+        let l:match = matchlist(l:line, l:pattern)
+        echom len(l:match)
+        echom join(l:match, ", ")
+
+        if len(l:match) == 0
+            continue
+        endif
+
+        let l:line = l:match[1] + 0
+        let l:column = l:match[2] + 0
+        let l:type = 'E'
+        let l:text = l:match[3]
+
+        " vcol is Needed to indicate that the column is a character.
+        call add(l:output, {
+        \   'bufnr': a:buffer,
+        \   'lnum': l:line,
+        \   'vcol': 0,
+        \   'col': l:column,
+        \   'text': l:text,
+        \   'type': l:type,
+        \   'nr': -1,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('typescript', {
+\   'name': 'typecheck',
+\   'executable': 'typecheck',
+\   'command': 'typecheck %s',
+\   'callback': 'ale_linters#typescript#typecheck#Handle',
+\})

From 0a3faa60f7c8c522f367a083db1e7b7404961209 Mon Sep 17 00:00:00 2001
From: Aleh Kashnikau <aleh.kashnikau@gmail.com>
Date: Thu, 10 Nov 2016 18:48:09 +0300
Subject: [PATCH 2/2] removed useless echom from typecheck.vim

---
 ale_linters/typescript/typecheck.vim | 2 --
 1 file changed, 2 deletions(-)

diff --git a/ale_linters/typescript/typecheck.vim b/ale_linters/typescript/typecheck.vim
index dd160d5..3a237e3 100644
--- a/ale_linters/typescript/typecheck.vim
+++ b/ale_linters/typescript/typecheck.vim
@@ -12,8 +12,6 @@ function! ale_linters#typescript#typecheck#Handle(buffer, lines)
 
     for l:line in a:lines
         let l:match = matchlist(l:line, l:pattern)
-        echom len(l:match)
-        echom join(l:match, ", ")
 
         if len(l:match) == 0
             continue