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-rw-r--r--editors/code/src/commands/index.ts52
-rw-r--r--editors/code/src/commands/on_enter.ts2
-rw-r--r--editors/code/src/snippets.ts52
-rw-r--r--editors/code/src/source_change.ts54
4 files changed, 54 insertions, 106 deletions
diff --git a/editors/code/src/commands/index.ts b/editors/code/src/commands/index.ts
index c2a232d5f..1ed8258d8 100644
--- a/editors/code/src/commands/index.ts
+++ b/editors/code/src/commands/index.ts
@@ -3,8 +3,7 @@ import * as lc from 'vscode-languageclient';
3import * as ra from '../rust-analyzer-api'; 3import * as ra from '../rust-analyzer-api';
4 4
5import { Ctx, Cmd } from '../ctx'; 5import { Ctx, Cmd } from '../ctx';
6import * as sourceChange from '../source_change'; 6import { applySnippetWorkspaceEdit } from '../snippets';
7import { assert } from '../util';
8 7
9export * from './analyzer_status'; 8export * from './analyzer_status';
10export * from './matching_brace'; 9export * from './matching_brace';
@@ -55,52 +54,3 @@ export function applySnippetWorkspaceEditCommand(_ctx: Ctx): Cmd {
55 await applySnippetWorkspaceEdit(edit); 54 await applySnippetWorkspaceEdit(edit);
56 }; 55 };
57} 56}
58
59export async function applySnippetWorkspaceEdit(edit: vscode.WorkspaceEdit) {
60 assert(edit.entries().length === 1, `bad ws edit: ${JSON.stringify(edit)}`);
61 const [uri, edits] = edit.entries()[0];
62
63 const editor = vscode.window.visibleTextEditors.find((it) => it.document.uri.toString() === uri.toString());
64 if (!editor) return;
65
66 let selection: vscode.Selection | undefined = undefined;
67 let lineDelta = 0;
68 await editor.edit((builder) => {
69 for (const indel of edits) {
70 const parsed = parseSnippet(indel.newText);
71 if (parsed) {
72 const [newText, [placeholderStart, placeholderLength]] = parsed;
73 const prefix = newText.substr(0, placeholderStart);
74 const lastNewline = prefix.lastIndexOf('\n');
75
76 const startLine = indel.range.start.line + lineDelta + countLines(prefix);
77 const startColumn = lastNewline === -1 ?
78 indel.range.start.character + placeholderStart
79 : prefix.length - lastNewline - 1;
80 const endColumn = startColumn + placeholderLength;
81 selection = new vscode.Selection(
82 new vscode.Position(startLine, startColumn),
83 new vscode.Position(startLine, endColumn),
84 );
85 builder.replace(indel.range, newText);
86 } else {
87 lineDelta = countLines(indel.newText) - (indel.range.end.line - indel.range.start.line);
88 builder.replace(indel.range, indel.newText);
89 }
90 }
91 });
92 if (selection) editor.selection = selection;
93}
94
95function parseSnippet(snip: string): [string, [number, number]] | undefined {
96 const m = snip.match(/\$(0|\{0:([^}]*)\})/);
97 if (!m) return undefined;
98 const placeholder = m[2] ?? "";
99 const range: [number, number] = [m.index!!, placeholder.length];
100 const insert = snip.replace(m[0], placeholder);
101 return [insert, range];
102}
103
104function countLines(text: string): number {
105 return (text.match(/\n/g) || []).length;
106}
diff --git a/editors/code/src/commands/on_enter.ts b/editors/code/src/commands/on_enter.ts
index a7871c31e..0e4769633 100644
--- a/editors/code/src/commands/on_enter.ts
+++ b/editors/code/src/commands/on_enter.ts
@@ -2,7 +2,7 @@ import * as vscode from 'vscode';
2import * as ra from '../rust-analyzer-api'; 2import * as ra from '../rust-analyzer-api';
3 3
4import { Cmd, Ctx } from '../ctx'; 4import { Cmd, Ctx } from '../ctx';
5import { applySnippetWorkspaceEdit } from '.'; 5import { applySnippetWorkspaceEdit } from '../snippets';
6 6
7async function handleKeypress(ctx: Ctx) { 7async function handleKeypress(ctx: Ctx) {
8 const editor = ctx.activeRustEditor; 8 const editor = ctx.activeRustEditor;
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 @@
1import * as vscode from 'vscode';
2
3import { assert } from './util';
4
5export async function applySnippetWorkspaceEdit(edit: vscode.WorkspaceEdit) {
6 assert(edit.entries().length === 1, `bad ws edit: ${JSON.stringify(edit)}`);
7 const [uri, edits] = edit.entries()[0];
8
9 const editor = vscode.window.visibleTextEditors.find((it) => it.document.uri.toString() === uri.toString());
10 if (!editor) return;
11
12 let selection: vscode.Selection | undefined = undefined;
13 let lineDelta = 0;
14 await editor.edit((builder) => {
15 for (const indel of edits) {
16 const parsed = parseSnippet(indel.newText);
17 if (parsed) {
18 const [newText, [placeholderStart, placeholderLength]] = parsed;
19 const prefix = newText.substr(0, placeholderStart);
20 const lastNewline = prefix.lastIndexOf('\n');
21
22 const startLine = indel.range.start.line + lineDelta + countLines(prefix);
23 const startColumn = lastNewline === -1 ?
24 indel.range.start.character + placeholderStart
25 : prefix.length - lastNewline - 1;
26 const endColumn = startColumn + placeholderLength;
27 selection = new vscode.Selection(
28 new vscode.Position(startLine, startColumn),
29 new vscode.Position(startLine, endColumn),
30 );
31 builder.replace(indel.range, newText);
32 } else {
33 lineDelta = countLines(indel.newText) - (indel.range.end.line - indel.range.start.line);
34 builder.replace(indel.range, indel.newText);
35 }
36 }
37 });
38 if (selection) editor.selection = selection;
39}
40
41function parseSnippet(snip: string): [string, [number, number]] | undefined {
42 const m = snip.match(/\$(0|\{0:([^}]*)\})/);
43 if (!m) return undefined;
44 const placeholder = m[2] ?? "";
45 const range: [number, number] = [m.index!!, placeholder.length];
46 const insert = snip.replace(m[0], placeholder);
47 return [insert, range];
48}
49
50function countLines(text: string): number {
51 return (text.match(/\n/g) || []).length;
52}
diff --git a/editors/code/src/source_change.ts b/editors/code/src/source_change.ts
deleted file mode 100644
index af8f1df51..000000000
--- a/editors/code/src/source_change.ts
+++ /dev/null
@@ -1,54 +0,0 @@
1import * as vscode from 'vscode';
2import * as lc from 'vscode-languageclient';
3import * as ra from './rust-analyzer-api';
4
5import { Ctx } from './ctx';
6
7export async function applySourceChange(ctx: Ctx, change: ra.SourceChange) {
8 const client = ctx.client;
9 if (!client) return;
10
11 const wsEdit = client.protocol2CodeConverter.asWorkspaceEdit(
12 change.workspaceEdit,
13 );
14 let created;
15 let moved;
16 if (change.workspaceEdit.documentChanges) {
17 for (const docChange of change.workspaceEdit.documentChanges) {
18 if (lc.CreateFile.is(docChange)) {
19 created = docChange.uri;
20 } else if (lc.RenameFile.is(docChange)) {
21 moved = docChange.newUri;
22 }
23 }
24 }
25 const toOpen = created || moved;
26 const toReveal = change.cursorPosition;
27 await vscode.workspace.applyEdit(wsEdit);
28 if (toOpen) {
29 const toOpenUri = vscode.Uri.parse(toOpen);
30 const doc = await vscode.workspace.openTextDocument(toOpenUri);
31 await vscode.window.showTextDocument(doc);
32 } else if (toReveal) {
33 const uri = client.protocol2CodeConverter.asUri(
34 toReveal.textDocument.uri,
35 );
36 const position = client.protocol2CodeConverter.asPosition(
37 toReveal.position,
38 );
39 const editor = vscode.window.activeTextEditor;
40 if (!editor || !editor.selection.isEmpty) {
41 return;
42 }
43
44 if (editor.document.uri !== uri) {
45 const doc = await vscode.workspace.openTextDocument(uri);
46 await vscode.window.showTextDocument(doc);
47 }
48 editor.selection = new vscode.Selection(position, position);
49 editor.revealRange(
50 new vscode.Range(position, position),
51 vscode.TextEditorRevealType.Default,
52 );
53 }
54}