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import {Deprecation} from '../deprecations';
import {SourceSpan} from './source_span';
export {SourceLocation} from './source_location';
export {SourceSpan} from './source_span';
/**
* The options passed to {@link Logger.warn}.
*
* * `deprecation`: Whether this is a deprecation warning.
*
* * `deprecationType`: The type of deprecation. Only set if `deprecation` is
* true.
*
* * `span`: The location in the Sass source code that generated this warning.
* This may be unset if the warning didn't come from Sass source, for
* example if it's from a deprecated JavaScript option.
*
* * `stack`: The Sass stack trace at the point the warning was issued. This may
* be unset if the warning didn't come from Sass source, for example if it's
* from a deprecated JavaScript option.
*
* @category Logger
*/
export type LoggerWarnOptions = (
| {
deprecation: true;
deprecationType: Deprecation;
}
| {deprecation: false}
) & {
span?: SourceSpan;
stack?: string;
};
/**
* An object that can be passed to {@link LegacySharedOptions.logger} to control
* how Sass emits warnings and debug messages.
*
* @example
*
* ```js
* const fs = require('fs');
* const sass = require('sass');
*
* let log = "";
* sass.renderSync({
* file: 'input.scss',
* logger: {
* warn(message, options) {
* if (options.span) {
* log += `${span.url}:${span.start.line}:${span.start.column}: ` +
* `${message}\n`;
* } else {
* log += `::: ${message}\n`;
* }
* }
* }
* });
*
* fs.writeFileSync('log.txt', log);
* ```
*
* @category Logger
*/
export interface Logger {
/**
* This method is called when Sass emits a warning, whether due to a [`@warn`
* rule](https://sass-lang.com/documentation/at-rules/warn) or a warning
* generated by the Sass compiler.
*
* If this is `undefined`, Sass will print warnings to standard error.
*
* `options` may contain the following fields:
*
* @param message - The warning message.
*/
warn?(message: string, options: LoggerWarnOptions): void;
/**
* This method is called when Sass emits a debug message due to a [`@debug`
* rule](https://sass-lang.com/documentation/at-rules/debug).
*
* If this is `undefined`, Sass will print debug messages to standard error.
*
* @param message - The debug message.
* @param options.span - The location in the Sass source code that generated this
* debug message.
*/
debug?(message: string, options: {span: SourceSpan}): void;
}
/**
* A namespace for built-in {@link Logger}s.
*
* @category Logger
* @compatibility dart: "1.43.0", node: false
*/
export namespace Logger {
/**
* A {@link Logger} that silently ignores all warnings and debug messages.
*
* @example
*
* ```js
* const sass = require('sass');
*
* const result = sass.renderSync({
* file: 'input.scss',
* logger: sass.Logger.silent,
* });
* ```
*/
export const silent: Logger;
}