// Copyright (c) 2018, Compiler Explorer Authors
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//     * Redistributions of source code must retain the above copyright notice,
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//     * Redistributions in binary form must reproduce the above copyright
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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 { SassAsmParser } from '../asm-parser-sass';
import { BaseCompiler } from '../base-compiler';

import { ClangParser } from './argument-parsers';

export class NvccCompiler extends BaseCompiler {
    static get key() { return 'nvcc'; }

    constructor(info, env) {
        super(info, env);

        this.asm = new SassAsmParser();
    }

    // TODO: (for all of CUDA)
    // * lots of whitespace from nvcc
    // * would be nice to teach demangler to support _MANGLED_param_0 e.g. _Z6squarePii_param_0
    // * select CPU code vs GPU code
    // * would be nice to try and filter unused `.func`s from e.g. clang output

    optionsForFilter(filters, outputFilename) {
        return ['-o', this.filename(outputFilename), '-lineinfo', filters.binary ? '-cubin' : '-ptx'];
    }

    getArgumentParser() {
        return ClangParser;
    }

    async objdump(outputFilename, result, maxSize) {
        // For nvdisasm.
        const args = [outputFilename, '-c', '-g', '-hex'];
        const execOptions = {maxOutput: maxSize, customCwd: path.dirname(outputFilename)};

        const objResult = await this.exec(this.compiler.objdumper, args, execOptions);
        result.asm = objResult.stdout;
        if (objResult.code !== 0) {
            result.asm = `<No output: nvdisasm returned ${objResult.code}>`;
        } else {
            result.objdumpTime = objResult.execTime;
        }
        return result;
    }
}