From 363723fc84f7b8477592e0105aeb331ec9a017af Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Mon, 14 Aug 2017 05:01:11 +0200
Subject: node_modules

---
 node_modules/tslint/lib/language/utils.js | 33 ++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'node_modules/tslint/lib/language/utils.js')

diff --git a/node_modules/tslint/lib/language/utils.js b/node_modules/tslint/lib/language/utils.js
index 4f1fa52cf..30983ec6b 100644
--- a/node_modules/tslint/lib/language/utils.js
+++ b/node_modules/tslint/lib/language/utils.js
@@ -44,9 +44,7 @@ function hasModifier(modifiers) {
     if (modifiers === undefined || modifierKinds.length === 0) {
         return false;
     }
-    return modifiers.some(function (m) {
-        return modifierKinds.some(function (k) { return m.kind === k; });
-    });
+    return modifiers.some(function (m) { return modifierKinds.some(function (k) { return m.kind === k; }); });
 }
 exports.hasModifier = hasModifier;
 /**
@@ -222,6 +220,18 @@ function isLoop(node) {
         || node.kind === ts.SyntaxKind.ForOfStatement;
 }
 exports.isLoop = isLoop;
+/**
+ * @returns Whether node is a numeric expression.
+ */
+function isNumeric(node) {
+    while (tsutils_1.isPrefixUnaryExpression(node) &&
+        (node.operator === ts.SyntaxKind.PlusToken || node.operator === ts.SyntaxKind.MinusToken)) {
+        node = node.operand;
+    }
+    return node.kind === ts.SyntaxKind.NumericLiteral ||
+        tsutils_1.isIdentifier(node) && (node.text === "NaN" || node.text === "Infinity");
+}
+exports.isNumeric = isNumeric;
 /**
  * Iterate over all tokens of `node`
  *
@@ -400,3 +410,20 @@ function getEqualsKind(node) {
     }
 }
 exports.getEqualsKind = getEqualsKind;
+function isStrictNullChecksEnabled(options) {
+    return options.strictNullChecks === true ||
+        (options.strict === true && options.strictNullChecks !== false);
+}
+exports.isStrictNullChecksEnabled = isStrictNullChecksEnabled;
+function isNegativeNumberLiteral(node) {
+    return tsutils_1.isPrefixUnaryExpression(node) &&
+        node.operator === ts.SyntaxKind.MinusToken &&
+        node.operand.kind === ts.SyntaxKind.NumericLiteral;
+}
+exports.isNegativeNumberLiteral = isNegativeNumberLiteral;
+/** Wrapper for compatibility with typescript@<2.3.1 */
+function isWhiteSpace(ch) {
+    // tslint:disable-next-line
+    return (ts.isWhiteSpaceLike || ts.isWhiteSpace)(ch);
+}
+exports.isWhiteSpace = isWhiteSpace;
-- 
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