From a689150a8b6536fdaa7822585ec661cc83e291ec Mon Sep 17 00:00:00 2001
From: James Westman <james@jwestman.net>
Date: Thu, 25 Jan 2024 20:02:02 -0600
Subject: [PATCH] errors: Print code actions in error message

Previously they were only exposed by the language server, but now the
command line will print the old and new text.
---
 blueprintcompiler/errors.py | 10 ++++++++++
 docs/index.rst              |  4 ++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/blueprintcompiler/errors.py b/blueprintcompiler/errors.py
index 73fd45d..a28c05d 100644
--- a/blueprintcompiler/errors.py
+++ b/blueprintcompiler/errors.py
@@ -107,6 +107,16 @@ at {filename} line {line_num} column {col_num}:
         for hint in self.hints:
             stream.write(f"{Colors.FAINT}hint: {hint}{Colors.CLEAR}\n")
 
+        for i, action in enumerate(self.actions):
+            old = (
+                action.edit_range.text
+                if action.edit_range is not None
+                else self.range.text
+            )
+            stream.write(
+                f"suggestion: replace {Colors.RED}{old}{Colors.CLEAR} with {Colors.GREEN}{action.replace_with}{Colors.CLEAR}\n"
+            )
+
         for ref in self.references:
             line_num, col_num = utils.idx_to_pos(ref.range.start + 1, code)
             line = code.splitlines(True)[line_num]
diff --git a/docs/index.rst b/docs/index.rst
index 9347c7b..06547c2 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -26,7 +26,7 @@ Blueprint is a markup language and compiler for GTK 4 user interfaces.
 
    using Gtk 4.0;
 
-   template $MyAppWindow : ApplicationWindow {
+   template MyAppWindow : ApplicationWindow {
      default-width: 600;
      default-height: 300;
      title: _("Hello, Blueprint!");
@@ -35,7 +35,7 @@ Blueprint is a markup language and compiler for GTK 4 user interfaces.
      HeaderBar {}
 
      Label {
-       label: bind template.main_text;
+       label: bind MyAppWindow.main_text;
      }
    }