From a3a7562f36b701d7addf8adb9b8fc8a04612331c Mon Sep 17 00:00:00 2001
From: Jason Cheatham <j.cheatham@gmail.com>
Date: Tue, 29 Aug 2017 20:37:52 -0400
Subject: [PATCH] Enable strict null checks for istanbuljs types

---
 types/istanbul-lib-coverage/tsconfig.json                    | 2 +-
 types/istanbul-lib-hook/tsconfig.json                        | 2 +-
 types/istanbul-lib-instrument/tsconfig.json                  | 2 +-
 types/istanbul-lib-report/tsconfig.json                      | 2 +-
 .../istanbul-lib-source-maps-tests.ts                        | 5 ++++-
 types/istanbul-lib-source-maps/tsconfig.json                 | 2 +-
 types/istanbul-reports/tsconfig.json                         | 2 +-
 7 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/types/istanbul-lib-coverage/tsconfig.json b/types/istanbul-lib-coverage/tsconfig.json
index 49ce27fd7d..fd839f63f8 100644
--- a/types/istanbul-lib-coverage/tsconfig.json
+++ b/types/istanbul-lib-coverage/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"
diff --git a/types/istanbul-lib-hook/tsconfig.json b/types/istanbul-lib-hook/tsconfig.json
index 7fe8feabad..824b360999 100644
--- a/types/istanbul-lib-hook/tsconfig.json
+++ b/types/istanbul-lib-hook/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"
diff --git a/types/istanbul-lib-instrument/tsconfig.json b/types/istanbul-lib-instrument/tsconfig.json
index d727f7ee3e..1f44277fc1 100644
--- a/types/istanbul-lib-instrument/tsconfig.json
+++ b/types/istanbul-lib-instrument/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"
diff --git a/types/istanbul-lib-report/tsconfig.json b/types/istanbul-lib-report/tsconfig.json
index fa9df126ab..960c160e83 100644
--- a/types/istanbul-lib-report/tsconfig.json
+++ b/types/istanbul-lib-report/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"
diff --git a/types/istanbul-lib-source-maps/istanbul-lib-source-maps-tests.ts b/types/istanbul-lib-source-maps/istanbul-lib-source-maps-tests.ts
index 3e244f3632..be03e785fc 100644
--- a/types/istanbul-lib-source-maps/istanbul-lib-source-maps-tests.ts
+++ b/types/istanbul-lib-source-maps/istanbul-lib-source-maps-tests.ts
@@ -31,4 +31,7 @@ transformed.sourceFinder('foo').trim();
 store.dispose();
 
 store.sourceStore.registerSource('foo', 'bar');
-store.sourceStore.getSource('foo').trim();
+const source = store.sourceStore.getSource('foo');
+if (source != null) {
+	source.trim();
+}
diff --git a/types/istanbul-lib-source-maps/tsconfig.json b/types/istanbul-lib-source-maps/tsconfig.json
index 2144d7a8bc..5693013057 100644
--- a/types/istanbul-lib-source-maps/tsconfig.json
+++ b/types/istanbul-lib-source-maps/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"
diff --git a/types/istanbul-reports/tsconfig.json b/types/istanbul-reports/tsconfig.json
index e04fc70292..6235d65f52 100644
--- a/types/istanbul-reports/tsconfig.json
+++ b/types/istanbul-reports/tsconfig.json
@@ -10,7 +10,7 @@
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
+        "strictNullChecks": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"