greybel-languageserver-core/dist/helper/ast-utils.js

Core functionality of language server for GreyScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.lookupBase = exports.lookupIdentifier = exports.lookupScopes = exports.lookupRootScope = void 0;
const miniscript_core_1 = require("miniscript-core");
const lookupRootScope = (origin) => {
    let current = origin;
    while (current.scope) {
        current = current.scope;
    }
    return current;
};
exports.lookupRootScope = lookupRootScope;
const lookupScopes = (origin) => {
    if (!origin.scope)
        return [origin];
    const rootScope = (0, exports.lookupRootScope)(origin);
    if (rootScope === origin.scope)
        return [origin, rootScope];
    return [origin, origin.scope, rootScope];
};
exports.lookupScopes = lookupScopes;
const lookupIdentifier = (root) => {
    // non greedy identifier to string method; can be used instead of ASTStringify
    switch (root.type) {
        case miniscript_core_1.ASTType.CallStatement:
            return (0, exports.lookupIdentifier)(root.expression);
        case miniscript_core_1.ASTType.CallExpression:
            return (0, exports.lookupIdentifier)(root.base);
        case miniscript_core_1.ASTType.Identifier:
            return root;
        case miniscript_core_1.ASTType.MemberExpression:
            return (0, exports.lookupIdentifier)(root.identifier);
        case miniscript_core_1.ASTType.IndexExpression:
            return (0, exports.lookupIdentifier)(root.index);
        default:
            return null;
    }
};
exports.lookupIdentifier = lookupIdentifier;
const lookupBase = (node = null) => {
    switch (node?.type) {
        case miniscript_core_1.ASTType.MemberExpression:
            return node.base;
        case miniscript_core_1.ASTType.IndexExpression:
            return node.base;
        case miniscript_core_1.ASTType.CallExpression:
            return node.base;
        case miniscript_core_1.ASTType.SliceExpression:
            return node.base;
        default:
            return null;
    }
};
exports.lookupBase = lookupBase;
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