75 lines
1.5 KiB
TypeScript
75 lines
1.5 KiB
TypeScript
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#!/usr/bin/env node
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import * as path from "path"
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import * as fs from "fs"
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import { parse, SyntaxError } from "../parser"
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import { Declaration } from "../ast"
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for (const filename of process.argv.slice(2)) {
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const contents = fs.readFileSync(filename, 'utf8');
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let decls: Declaration[];
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try {
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decls = parse(contents);
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} catch (e) {
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if (e instanceof SyntaxError) {
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console.error(`${filename}:${e.location.start.line}:${e.location.start.column}: ${e.message}`);
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process.exit(1);
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} else {
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throw e;
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}
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}
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console.error(jsonify(decls));
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const generated = generateAST(decls);
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fs.writeFileSync(getFileStem(filename).toLowerCase(), generated, 'utf8');
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}
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interface FastStringMap<T> { [key: string]: T }
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function generateAST(decls: Declaration[]) {
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const declByName: FastStringMap<Declaration> = Object.create(null);
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for (const decl of decls) {
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declByName[decl.name] = decl;
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}
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return ''
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}
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function jsonify(value: any) {
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function visitNode(node: any) {
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const obj: any = {};
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for (const key of Object.keys(node)) {
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if (key !== 'type' && key !== 'span') {
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const value = node[key];
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if (Array.isArray(value)) {
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obj[key] = value.map(visit);
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} else {
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obj[key] = visit(value);
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}
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}
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}
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return obj;
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}
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function visit(value: any) {
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if (value.__IS_NODE) {
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return visitNode(value);
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} else {
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return value;
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}
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}
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return visit(value);
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}
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function getFileStem(filepath: string) {
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return path.basename(filepath).split('.')[0];
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}
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