lib/formatters/rustfmt.ts

// Copyright (c) 2021, Compiler Explorer Authors
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import {UnprocessedExecResult} from '../../types/execution/execution.interfaces';
import * as exec from '../exec';

import {BaseFormatter} from './base';
import {FormatOptions} from './base.interfaces';

export class RustFmtFormatter extends BaseFormatter {
    static get key() {
        return 'rustfmt';
    }

    override async format(source: string, options: FormatOptions): Promise<UnprocessedExecResult> {
        const args = [
            '--emit',
            'stdout',
            '--config',
            `hard_tabs=${options.useSpaces ? 'false' : 'true'}`,
            '--config',
            `tab_spaces=${options.tabWidth}`,
        ];
        return await exec.execute(this.formatterInfo.exe, args, {input: source});
    }

    /**
     * Rust format only has one style.
     */
    override isValidStyle(style: string): boolean {
        return true;
    }
}