walt-compiler
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Alternative syntax for WebAssembly text format
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<a href="../../index.html">All files</a> / <a href="index.html">src/generator</a> select.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">// @flow
import opcode from '../emitter/opcode';
import mapSyntax from './map-syntax';
import mergeBlock from './merge-block';
import type { GeneratorType } from './flow/types';
const generateSelect: GeneratorType = (node, parent) => {
const [leftHandSide, rightHandSide] = node.params;
const selectOpcode = { kind: opcode.Select, params: [] };
const condition = [leftHandSide]
.map(mapSyntax(parent))
.reduce(mergeBlock, []);
if (node.value === '&&') {
return [
...[rightHandSide].map(mapSyntax(parent)).reduce(mergeBlock, []),
{ kind: opcode.i32Const, params: [0] },
...condition,
selectOpcode,
];
}
return [
...condition,
...[rightHandSide].map(mapSyntax(parent)).reduce(mergeBlock, []),
...condition,
selectOpcode,
];
};
export default generateSelect;
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