Handle compiler diagnostics in Rust (#2445)

1 files changed, 26 insertions, 0 deletions

diff --git a/cli/ansi.rs b/cli/ansi.rs
index 95b5e0694..b9e9fe123 100644
--- a/cli/ansi.rs
+++ b/cli/ansi.rs
@@ -1,6 +1,8 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+use ansi_term::Color::Black;
 use ansi_term::Color::Fixed;
 use ansi_term::Color::Red;
+use ansi_term::Color::White;
 use ansi_term::Style;
 use regex::Regex;
 use std::env;
@@ -43,6 +45,14 @@ pub fn italic_bold(s: String) -> impl fmt::Display {
   style.paint(s)
 }
 
+pub fn black_on_white(s: String) -> impl fmt::Display {
+  let mut style = Style::new();
+  if use_color() {
+    style = style.on(White).fg(Black);
+  }
+  style.paint(s)
+}
+
 pub fn yellow(s: String) -> impl fmt::Display {
   let mut style = Style::new();
   if use_color() {
@@ -61,6 +71,22 @@ pub fn cyan(s: String) -> impl fmt::Display {
   style.paint(s)
 }
 
+pub fn red(s: String) -> impl fmt::Display {
+  let mut style = Style::new();
+  if use_color() {
+    style = style.fg(Red);
+  }
+  style.paint(s)
+}
+
+pub fn grey(s: String) -> impl fmt::Display {
+  let mut style = Style::new();
+  if use_color() {
+    style = style.fg(Fixed(8));
+  }
+  style.paint(s)
+}
+
 pub fn bold(s: String) -> impl fmt::Display {
   let mut style = Style::new();
   if use_color() {