walt-compiler
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<a href="../../index.html">All files</a> / <a href="index.html">src/core</a> native.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Native methods plugin
*
* @flow
*/
import Syntax from 'walt-syntax';
import { extendNode } from '../utils/extend-node';
import type { SemanticPlugin } from '../flow/types';
export default function nativePlugin(): SemanticPlugin {
return {
semantics() {
return {
[Syntax.FunctionCall]: next => (args, transform) => {
const [node, context] = args;
const [id, ...fnArgs] = node.params;
if (
id.Type === Syntax.Access &&
id.params[0] &&
id.params[0].Type === Syntax.Type
) {
const [type, method] = id.params;
return extendNode(
{
value: `${type.value}.${method.value}`,
type: type.value,
params: fnArgs.map(p => transform([p, context])),
Type: Syntax.NativeMethod,
},
node
);
}
return next(args);
},
[Syntax.Unreachable]: _ => ([node]) => {
return extendNode(
{
value: 'unreachable',
params: [],
Type: Syntax.NativeMethod,
},
node
);
},
};
},
};
}
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Code coverage
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