From 4a013ec62d2dfacaf6010b08c96947aa38481721 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 25 May 2020 10:59:54 +0200
Subject: Remove dead code

---
 editors/code/src/snippets.ts | 52 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 editors/code/src/snippets.ts

(limited to 'editors/code/src/snippets.ts')

diff --git a/editors/code/src/snippets.ts b/editors/code/src/snippets.ts
new file mode 100644
index 000000000..794530162
--- /dev/null
+++ b/editors/code/src/snippets.ts
@@ -0,0 +1,52 @@
+import * as vscode from 'vscode';
+
+import { assert } from './util';
+
+export async function applySnippetWorkspaceEdit(edit: vscode.WorkspaceEdit) {
+    assert(edit.entries().length === 1, `bad ws edit: ${JSON.stringify(edit)}`);
+    const [uri, edits] = edit.entries()[0];
+
+    const editor = vscode.window.visibleTextEditors.find((it) => it.document.uri.toString() === uri.toString());
+    if (!editor) return;
+
+    let selection: vscode.Selection | undefined = undefined;
+    let lineDelta = 0;
+    await editor.edit((builder) => {
+        for (const indel of edits) {
+            const parsed = parseSnippet(indel.newText);
+            if (parsed) {
+                const [newText, [placeholderStart, placeholderLength]] = parsed;
+                const prefix = newText.substr(0, placeholderStart);
+                const lastNewline = prefix.lastIndexOf('\n');
+
+                const startLine = indel.range.start.line + lineDelta + countLines(prefix);
+                const startColumn = lastNewline === -1 ?
+                    indel.range.start.character + placeholderStart
+                    : prefix.length - lastNewline - 1;
+                const endColumn = startColumn + placeholderLength;
+                selection = new vscode.Selection(
+                    new vscode.Position(startLine, startColumn),
+                    new vscode.Position(startLine, endColumn),
+                );
+                builder.replace(indel.range, newText);
+            } else {
+                lineDelta = countLines(indel.newText) - (indel.range.end.line - indel.range.start.line);
+                builder.replace(indel.range, indel.newText);
+            }
+        }
+    });
+    if (selection) editor.selection = selection;
+}
+
+function parseSnippet(snip: string): [string, [number, number]] | undefined {
+    const m = snip.match(/\$(0|\{0:([^}]*)\})/);
+    if (!m) return undefined;
+    const placeholder = m[2] ?? "";
+    const range: [number, number] = [m.index!!, placeholder.length];
+    const insert = snip.replace(m[0], placeholder);
+    return [insert, range];
+}
+
+function countLines(text: string): number {
+    return (text.match(/\n/g) || []).length;
+}
-- 
cgit v1.2.3


From 76e170c3d0d0784c0e612c5849798c65a2034f29 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 25 May 2020 14:12:53 +0200
Subject: Less rust-analyzer specific onEnter

---
 editors/code/src/snippets.ts | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'editors/code/src/snippets.ts')

diff --git a/editors/code/src/snippets.ts b/editors/code/src/snippets.ts
index 794530162..bcb3f2cc7 100644
--- a/editors/code/src/snippets.ts
+++ b/editors/code/src/snippets.ts
@@ -8,7 +8,10 @@ export async function applySnippetWorkspaceEdit(edit: vscode.WorkspaceEdit) {
 
     const editor = vscode.window.visibleTextEditors.find((it) => it.document.uri.toString() === uri.toString());
     if (!editor) return;
+    await applySnippetTextEdits(editor, edits);
+}
 
+export async function applySnippetTextEdits(editor: vscode.TextEditor, edits: vscode.TextEdit[]) {
     let selection: vscode.Selection | undefined = undefined;
     let lineDelta = 0;
     await editor.edit((builder) => {
-- 
cgit v1.2.3