walt-compiler
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Alternative syntax for WebAssembly text format
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<title>Code coverage report for src/emitter/section/types.js</title>
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<a href="../../../index.html">All files</a> / <a href="index.html">src/emitter/section</a> types.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">// @flow
import { FUNC, getTypeString } from '../value_type';
import { varuint32, varint7, varint1 } from '../numbers';
import OutputStream from '../../utils/output-stream';
const emitType = (stream, { params, result }, index) => {
// as of wasm 1.0 spec types are only of from === func
stream.push(varint7, FUNC, `func type (${index})`);
stream.push(varuint32, params.length, 'parameter count');
params.forEach(type => stream.push(varint7, type, 'param'));
if (result) {
stream.push(varint1, 1, 'result count');
stream.push(varint7, result, `result type ${getTypeString(result)}`);
} else {
stream.push(varint1, 0, 'result count');
}
};
const emit = (types: any[]) => {
const stream = new OutputStream();
stream.push(varuint32, types.length, 'count');
types.forEach((type, index) => emitType(stream, type, index));
return stream;
};
export default emit;
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Code coverage
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