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// Copyright (c) 2017, Matt Godbolt
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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const asmDocsRISCV = require('./asm-docs-riscv'), |
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props = require('../properties'); |
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class Handler { |
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constructor() { |
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const asmProps = props.propsFor("asm-docs"); |
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this.staticMaxAgeSecs = asmProps('staticMaxAgeSecs', 10); |
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this.atAndTSuffixRemover = /^([A-Z]+)[BWLQ]$/i; |
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} |
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handle(req, res) { |
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let info = asmDocsRISCV.getAsmOpcodeRISCV(req.params.opcode); |
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if (!info) { |
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// If the opcode ends with an AT&T suffix, try removing that and giving it another go.
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// Ideally, we'd be smarter here, but this is a quick win.
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const suffixRemoved = this.atAndTSuffixRemover.exec(req.params.opcode); |
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if (suffixRemoved) { |
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info = asmDocsRISCV.getAsmOpcode(suffixRemoved[1]); |
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} |
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} |
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if (this.staticMaxAgeSecs) { |
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res.setHeader('Cache-Control', 'public, max-age=' + this.staticMaxAgeSecs); |
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} |
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if (req.accepts(['text', 'json']) === 'json') { |
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res.set('Content-Type', 'application/json'); |
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res.end(JSON.stringify({found: !!info, result: info})); |
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} else { |
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res.set('Content-Type', 'text/html'); |
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if (info) |
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res.end(info.html); |
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else |
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res.end("Unknown opcode"); |
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} |
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} |
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} |
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module.exports.Handler = Handler; |
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