# All files / src/generator declaration.js

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     // @flow
    import { i32 } from "../Syntax";
    import generateExpression from "./expression";
    import { isBuiltinType } from "./utils";
    import opcode from "../emitter/opcode";
    import { LOCAL_INDEX } from "../semantics/metadata";
    import type { GeneratorType } from "./flow/types";

    const generateDeclaration: GeneratorType = (
      node,
      parent = { code: [], locals: [] }
    ) => {
      const initNode = node.params[0];

      if (initNode) {
        const metaIndex = node.meta[LOCAL_INDEX];

        const type = isBuiltinType(node.type) ? node.type : i32;

        return [
          ...generateExpression({ ...initNode, type }, parent),
          {
            kind: opcode.SetLocal,
            params: [metaIndex],
            debug: `${node.value}<${String(node.type)}>`,
          },
        ];
      }

      return [];
    };

    export default generateDeclaration;