sql-formatter
Version:
Format whitespace in a SQL query to make it more readable
88 lines • 3.46 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.InlineLayoutError = void 0;
// eslint-disable-next-line max-classes-per-file
const Indentation_js_1 = __importDefault(require("./Indentation.js"));
const Layout_js_1 = __importStar(require("./Layout.js"));
/**
* Like Layout, but only formats single-line expressions.
*
* Throws InlineLayoutError:
* - when encountering a newline
* - when exceeding configured expressionWidth
*/
class InlineLayout extends Layout_js_1.default {
constructor(expressionWidth) {
super(new Indentation_js_1.default('')); // no indentation in inline layout
this.expressionWidth = expressionWidth;
this.length = 0;
// Keeps track of the trailing whitespace,
// so that we can decrease length when encountering WS.NO_SPACE,
// but only when there actually is a space to remove.
this.trailingSpace = false;
}
add(...items) {
items.forEach(item => this.addToLength(item));
if (this.length > this.expressionWidth) {
// We have exceeded the allowable width
throw new InlineLayoutError();
}
super.add(...items);
}
addToLength(item) {
if (typeof item === 'string') {
this.length += item.length;
this.trailingSpace = false;
}
else if (item === Layout_js_1.WS.MANDATORY_NEWLINE || item === Layout_js_1.WS.NEWLINE) {
// newlines not allowed within inline block
throw new InlineLayoutError();
}
else if (item === Layout_js_1.WS.INDENT || item === Layout_js_1.WS.SINGLE_INDENT || item === Layout_js_1.WS.SPACE) {
if (!this.trailingSpace) {
this.length++;
this.trailingSpace = true;
}
}
else if (item === Layout_js_1.WS.NO_NEWLINE || item === Layout_js_1.WS.NO_SPACE) {
if (this.trailingSpace) {
this.trailingSpace = false;
this.length--;
}
}
}
}
exports.default = InlineLayout;
/**
* Thrown when block of SQL can't be formatted as a single line.
*/
class InlineLayoutError extends Error {
}
exports.InlineLayoutError = InlineLayoutError;
//# sourceMappingURL=InlineLayout.js.map