prettier-plugin-solidity/dist/slang-utils/create-parser.js

A Prettier Plugin for automatically formatting your Solidity code.

import { NonterminalKind } from '@nomicfoundation/slang/cst';
import { Parser } from '@nomicfoundation/slang/parser';
import { LanguageFacts } from '@nomicfoundation/slang/utils';
import { minSatisfying } from 'semver';
const supportedVersions = LanguageFacts.allVersions();
const supportedLength = supportedVersions.length;
function parserAndOutput(text, version) {
    const parser = Parser.create(version);
    return {
        parser,
        parseOutput: parser.parseNonterminal(NonterminalKind.SourceUnit, text)
    };
}
function createError(result, reason) {
    return new Error(`We encountered the following syntax error:\n\n\t${result.parseOutput.errors()[0].message}\n\n${reason}`);
}
export function createParser(text, options) {
    const compiler = minSatisfying(supportedVersions, options.compiler);
    if (compiler) {
        const result = parserAndOutput(text, compiler);
        if (!result.parseOutput.isValid())
            throw createError(result, `Based on the compiler option provided, we inferred your code to be using Solidity version ${result.parser.languageVersion}. If you would like to change that, specify a different version in your \`.prettierrc\` file.`);
        return result;
    }
    const inferredRanges = LanguageFacts.inferLanguageVersions(text);
    const inferredLength = inferredRanges.length;
    if (inferredLength === 0 || inferredLength === supportedLength) {
        const result = parserAndOutput(text, supportedVersions[supportedLength - 1]);
        if (!result.parseOutput.isValid())
            throw createError(result, `We couldn't infer a Solidity version based on the pragma statements in your code so we defaulted to ${result.parser.languageVersion}. You might be attempting to use a syntax not yet supported by Slang or you might want to specify a version in your \`.prettierrc\` file.`);
        return result;
    }
    const result = parserAndOutput(text, inferredRanges[0]);
    if (!result.parseOutput.isValid())
        throw createError(result, `Based on the pragma statements, we inferred your code to be using Solidity version ${result.parser.languageVersion}. If you would like to change that, update the pragmas in your source file, or specify a version in your \`.prettierrc\` file.`);
    return result;
}
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