lib/compilers/pony.ts

// Copyright (c) 2022, Compiler Explorer Authors
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import path from 'path';

import _ from 'underscore';

import {CompilationResult, ExecutionOptions} from '../../types/compilation/compilation.interfaces';
import {ParseFilters} from '../../types/features/filters.interfaces';
import {BaseCompiler} from '../base-compiler';

export class PonyCompiler extends BaseCompiler {
    static get key() {
        return 'pony';
    }

    /* constructor(info: any, env: any) {
        super(info, env);

        this.compiler.supportsIrView = true;
        this.compiler.irArg = ['--pass', 'ir'];
    } */

    override optionsForFilter(filters: ParseFilters, outputFilename: any, userOptions?: any): string[] {
        let options = ['-d', '-b', path.parse(outputFilename).name];

        if (!filters.binary) {
            options = options.concat(['--pass', 'asm']);
        }

        return options;
    }

    override preProcess(source: string, filters: any) {
        // I do not think you can make a Pony "library", so you must always have a main.
        // Looking at the stdlib, the main is used as a test harness.
        if (!this.stubRe.test(source)) {
            source += `\n${this.stubText}\n`;
        }
        return source;
    }

    override async generateIR(inputFilename: string, options: string[], filters: ParseFilters) {
        const newOptions = _.filter(options, option => !['--pass', 'asm'].includes(option)).concat(this.compiler.irArg);

        const execOptions = this.getDefaultExecOptions();
        // A higher max output is needed for when the user includes headers
        execOptions.maxOutput = 1024 * 1024 * 1024;

        const output = await this.runCompiler(this.compiler.exe, newOptions, this.filename(inputFilename), execOptions);
        if (output.code !== 0) {
            return [{text: 'Failed to run compiler to get IR code'}];
        }
        const ir = await this.processIrOutput(output, filters);
        return ir.asm;
    }

    override async runCompiler(
        compiler: string,
        options: string[],
        inputFilename: string,
        execOptions: ExecutionOptions,
    ): Promise<CompilationResult> {
        if (!execOptions) {
            execOptions = this.getDefaultExecOptions();
        }

        if (!execOptions.customCwd) {
            execOptions.customCwd = path.dirname(inputFilename);
        }

        // Pony operates upon the directory as a whole, not files it seems
        // So we must set the input to the directory rather than a file.
        options = _.map(options, arg => (arg.includes(inputFilename) ? path.dirname(arg) : arg));

        const result = await this.exec(compiler, options, execOptions);
        result.inputFilename = inputFilename;
        const transformedInput = result.filenameTransform(inputFilename);
        this.parseCompilationOutput(result, transformedInput);
        return result;
    }
}