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Parse + decorate rendered ANSI cargo output

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Use ANSI control characters to display text decorations matching the
VScode terminal theme, and strip them out when providing text content
for rustc diagnostics.

This adds the small `anser` library to parse the control codes, and it
also supports HTML output so it should be fairly easy to switch to a
rendered HTML/webview implementation if desired.
This commit is contained in:
Ian Chamberlain 2023-01-03 10:16:16 -05:00
parent f32e20edb9
commit 1b8141b54c
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GPG key ID: BD7B25D58170E124
5 changed files with 272 additions and 24 deletions
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11
editors/code/src/client.ts
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@ -3,6 +3,7 @@ import * as vscode from "vscode";
import * as ra from "../src/lsp_ext";
import * as Is from "vscode-languageclient/lib/common/utils/is";
import { assert } from "./util";
import * as diagnostics from "./diagnostics";
import { WorkspaceEdit } from "vscode";
import { Config, substituteVSCodeVariables } from "./config";
import { randomUUID } from "crypto";
@ -120,12 +121,12 @@ export async function createClient(
},
async handleDiagnostics(
uri: vscode.Uri,
diagnostics: vscode.Diagnostic[],
diagnosticList: vscode.Diagnostic[],
next: lc.HandleDiagnosticsSignature
) {
const preview = config.previewRustcOutput;
const errorCode = config.useRustcErrorCode;
diagnostics.forEach((diag, idx) => {
diagnosticList.forEach((diag, idx) => {
// Abuse the fact that VSCode leaks the LSP diagnostics data field through the
// Diagnostic class, if they ever break this we are out of luck and have to go
// back to the worst diagnostics experience ever:)
@ -154,8 +155,8 @@ export async function createClient(
}
diag.code = {
target: vscode.Uri.from({
scheme: "rust-analyzer-diagnostics-view",
path: "/diagnostic message",
scheme: diagnostics.URI_SCHEME,
path: `/diagnostic message [${idx.toString()}]`,
fragment: uri.toString(),
query: idx.toString(),
}),
@ -163,7 +164,7 @@ export async function createClient(
};
}
});
return next(uri, diagnostics);
return next(uri, diagnosticList);
},
async provideHover(
document: vscode.TextDocument,