mirror of
https://github.com/cerc-io/watcher-ts
synced 2026-02-02 08:14:08 +00:00
nikugogoi
1bcabd64f2
* Update codegen with index-block CLI and remove graph-node * Add filter logs by contract flag * Skip generating GQL API for immutable variables * Add config for maxEventsBlockRange * Add new flags in existing watchers
61 lines
2.3 KiB
TypeScript
61 lines
2.3 KiB
TypeScript
//
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// Copyright 2021 Vulcanize, Inc.
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//
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import assert from 'assert';
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import Handlebars from 'handlebars';
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import { reservedNames } from './types';
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export function registerHandlebarHelpers (config: any): void {
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Handlebars.registerHelper('compare', compareHelper);
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Handlebars.registerHelper('capitalize', capitalizeHelper);
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Handlebars.registerHelper('reservedNameCheck', reservedNameCheckHelper);
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Handlebars.registerHelper('subgraphPath', () => config.subgraphPath);
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}
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/**
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* Helper function to compare two values using the given operator.
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* @param lvalue Left hand side value.
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* @param rvalue Right hasd side value.
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* @param options Handlebars options parameter. `options.hash.operator`: operator to be used for comparison.
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* @returns Result of the comparison.
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*/
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function compareHelper (lvalue: string, rvalue: string, options: any): boolean {
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assert(lvalue && rvalue, "Handlerbars Helper 'compare' needs at least 2 parameters");
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const operator = options.hash.operator || '===';
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const operators: Map<string, (l:any, r:any) => boolean> = new Map();
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operators.set('===', function (l: any, r: any) { return l === r; });
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operators.set('!==', function (l: any, r: any) { return l !== r; });
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operators.set('<', function (l: any, r: any) { return l < r; });
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operators.set('>', function (l: any, r: any) { return l > r; });
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operators.set('<=', function (l: any, r: any) { return l <= r; });
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operators.set('>=', function (l: any, r: any) { return l >= r; });
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const operatorFunction = operators.get(operator);
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assert(operatorFunction, "Handlerbars Helper 'compare' doesn't know the operator " + operator);
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const result = operatorFunction(lvalue, rvalue);
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return result;
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}
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/**
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* Helper function that capitalized string till given index.
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* @param value String of which content is to be capitalized.
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* @param options Handlebars options parameter. `options.hash.tillIndex`: index till which to capitalize the string.
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* @returns The modified string.
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*/
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function capitalizeHelper (value: string, options: any): string {
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const tillIndex = options.hash.tillIndex || value.length;
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const result = `${value.slice(0, tillIndex).toUpperCase()}${value.slice(tillIndex, value.length)}`;
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return result;
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}
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function reservedNameCheckHelper (value: string): boolean {
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return reservedNames.has(value);
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}
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