lib/compilers/hook.ts

// Copyright (c) 2022, Compiler Explorer Authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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import path from 'path';

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

export class HookCompiler extends BaseCompiler {
    static get key(): string {
        return 'hook';
    }

    override optionsForFilter(filters: ParseFiltersAndOutputOptions): string[] {
        return ['--dump'];
    }

    override getOutputFilename(dirPath: string): string {
        return path.join(dirPath, 'example.out');
    }

    override async runCompiler(
        compiler: string,
        options: string[],
        inputFilename: string,
        execOptions: ExecutionOptions,
    ): Promise<CompilationResult> {
        const dirPath = path.dirname(inputFilename);
        const outputFilename = this.getOutputFilename(dirPath);
        options.push(outputFilename);
        return super.runCompiler(compiler, options, inputFilename, execOptions);
    }

    override processAsm(result) {
        const commentRegex = /^\s*;(.*)/;
        const instructionRegex = /^\s{2}(\d+)(.*)/;
        const lines = result.asm.split('\n');
        const asm: ParsedAsmResultLine[] = [];
        let lastLineNo: number | undefined;
        for (const line of lines) {
            if (commentRegex.test(line)) {
                asm.push({text: line, source: {line: undefined, file: null}});
                lastLineNo = undefined;
                continue;
            }
            const match = line.match(instructionRegex);
            if (match) {
                const lineNo = parseInt(match[1]);
                asm.push({text: line, source: {line: lineNo, file: null}});
                lastLineNo = lineNo;
                continue;
            }
            if (line) {
                asm.push({text: line, source: {line: lastLineNo, file: null}});
                continue;
            }
            asm.push({text: line, source: {line: undefined, file: null}});
            lastLineNo = undefined;
        }
        return {asm: asm};
    }
}