93 lines
2.6 KiB
TypeScript
93 lines
2.6 KiB
TypeScript
import monaco from "monaco-editor";
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import React from "react";
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/**
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* Type alias for defining range of characters in a single line.
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* - Missing `start` means range starting from start of the line.
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* - Missing `end` means range ending at the end of the line.
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*/
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export type CharRange = { start?: number; end?: number };
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/**
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* Type denoting a range of text in document spanning within a line.
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*/
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export type DocumentRange = {
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/** Line number of the range */
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line: number;
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/** Section of line - omit to cover entire line */
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charRange?: CharRange;
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};
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/** Type denoting a document edit */
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export type DocumentEdit = {
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/** Range to replace with the given text. Keep empty to insert text */
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range: DocumentRange;
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/** Text to replace the given range with */
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text: string;
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};
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/** Source code token provider for the language, specific to Monaco */
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export type MonacoTokensProvider = monaco.languages.IMonarchLanguage;
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/** Type alias for props passed to renderer */
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export type RendererProps<RS> = { state: RS | null };
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/**
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* Type alias for the result of engine executing a single step.
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*/
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export type StepExecutionResult<RS> = {
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/** New props to be passed to the renderer */
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rendererState: RS;
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/** String to write to program output */
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output?: string;
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/** Self-modifying programs: edit to apply on code */
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codeEdits?: DocumentEdit[];
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/**
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* Used to highlight next line to be executed in the editor.
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* Passing `null` indicates reaching the end of program.
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*/
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nextStepLocation: DocumentRange | null;
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/** Signal if execution has been paused */
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signal?: "paused";
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};
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/**
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* Language engine is responsible for providing
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* execution and debugging API to the platform.
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*/
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export interface LanguageEngine<RS> {
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/** Validate the syntax of the given code. Throw ParseError if any */
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validateCode: (code: string) => void;
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/** Load code and user input into the engine and prepare for execution */
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prepare: (code: string, input: string) => void;
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/** Perform a single step of code execution */
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executeStep: () => StepExecutionResult<RS>;
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/** Reset all state to prepare for new cycle */
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resetState: () => void;
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}
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/**
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* Language provider provides all language-specific
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* functionality to the platform.
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*/
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export interface LanguageProvider<RS> {
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/** Monaco-specific tokenizer for syntax highlighting */
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editorTokensProvider?: MonacoTokensProvider;
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/** Monaco-specific autocomplete provider */
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autocompleteProvider?: any;
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/** Sample code sample for the language */
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sampleProgram: string;
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/** React component for visualising runtime state */
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Renderer: React.FC<RendererProps<RS>>;
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}
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