summaryrefslogtreecommitdiff
path: root/src/toys/godel/js
diff options
context:
space:
mode:
Diffstat (limited to 'src/toys/godel/js')
-rw-r--r--src/toys/godel/js/compiler.js226
-rw-r--r--src/toys/godel/js/godel-worker.js42
-rw-r--r--src/toys/godel/js/main.js5
-rw-r--r--src/toys/godel/js/parser.js1059
-rw-r--r--src/toys/godel/js/ui.js228
5 files changed, 1560 insertions, 0 deletions
diff --git a/src/toys/godel/js/compiler.js b/src/toys/godel/js/compiler.js
new file mode 100644
index 0000000..d15c0f4
--- /dev/null
+++ b/src/toys/godel/js/compiler.js
@@ -0,0 +1,226 @@
+const INDENT_SIZE = 2;
+
+class CodeBuilder {
+ constructor(indentSize = INDENT_SIZE) {
+ this.indentSize = indentSize;
+ this.indentLevel = 0;
+ this.parts = [];
+ }
+
+ addLine(line = "") {
+ const indent = " ".repeat(this.indentLevel * this.indentSize);
+ this.parts.push(line ? `${indent}${line}` : "");
+ }
+
+ open(line) {
+ if (line) {
+ this.addLine(line);
+ }
+ this.indentLevel += 1;
+ }
+
+ close(line) {
+ this.indentLevel = Math.max(0, this.indentLevel - 1);
+ if (line) {
+ this.addLine(line);
+ }
+ }
+
+ toString() {
+ return this.parts.join("\n");
+ }
+}
+
+const compileGoto = (gotoNode, builder) => {
+ builder.addLine(`this.followGoto("${gotoNode.label.symbol}");`);
+ builder.addLine("return;");
+};
+
+const compileConditional = (conditionalNode, builder) => {
+ const variable = conditionalNode.variable.symbol;
+ builder.addLine(`if (this.get("${variable}") !== 0) {`);
+ builder.open();
+ compileGoto(conditionalNode.goto, builder);
+ builder.close("}");
+};
+
+const compileAssignment = (assignmentNode, builder) => {
+ const variable = assignmentNode.variable.symbol;
+ const expr = assignmentNode.expr || {};
+
+ if (expr.opr === "+") {
+ builder.addLine(`this.addOne("${variable}");`);
+ } else if (expr.opr === "-") {
+ builder.addLine(`this.subtractOne("${variable}");`);
+ } else {
+ builder.addLine("// noop");
+ }
+};
+
+const compileInstruction = (instruction, builder) => {
+ if (instruction.goto) {
+ compileGoto(instruction.goto, builder);
+ return;
+ }
+
+ if (instruction.conditional) {
+ compileConditional(instruction.conditional, builder);
+ } else if (instruction.assignment) {
+ compileAssignment(instruction.assignment, builder);
+ }
+
+ builder.addLine("this.instructionPointer++;");
+};
+
+const emitMethod = (builder, signature, bodyFn) => {
+ builder.addLine(`${signature} {`);
+ builder.open();
+ bodyFn();
+ builder.close("}");
+ builder.addLine("");
+};
+
+const emitConstructor = (builder, ast, godelSequence, methodCatalog) => {
+ emitMethod(builder, "constructor()", () => {
+ builder.addLine("this.variables = new Map();");
+ builder.addLine("this.labelInstructions = new Map();");
+ builder.addLine("this.instructions = new Map();");
+ builder.addLine("this.instructions.set(0, () => this.main());");
+ builder.addLine("this.instructionPointer = 0;");
+ builder.addLine('this.variables.set("Y", 0);');
+ builder.addLine(`this.finalInstruction = ${ast.instructions.length + 1};`);
+ builder.addLine('this.labelInstructions.set("E1", this.finalInstruction);');
+ builder.addLine("");
+ builder.addLine("// instruction bindings");
+
+ ast.instructions.forEach((entry, index) => {
+ const instructionNode = entry.instruction;
+ const instructionIdx = index + 1;
+ godelSequence.push(entry.godel);
+
+ if (instructionNode.label) {
+ const labelName = instructionNode.label.symbol;
+ builder.addLine(
+ `this.instructions.set(${instructionIdx}, () => this.${labelName}());`
+ );
+ builder.addLine(
+ `this.labelInstructions.set("${labelName}", ${instructionIdx});`
+ );
+ methodCatalog.push({
+ name: labelName,
+ index: instructionIdx,
+ node: instructionNode.instruction
+ });
+ } else {
+ const methodName = `instruction${instructionIdx}`;
+ builder.addLine(
+ `this.instructions.set(${instructionIdx}, () => this.${methodName}());`
+ );
+ methodCatalog.push({
+ name: methodName,
+ index: instructionIdx,
+ node: instructionNode
+ });
+ }
+ });
+ });
+};
+
+const emitRuntimeHelpers = (builder, instructionCount) => {
+ emitMethod(builder, "get(variable)", () => {
+ builder.addLine("if (!this.variables.has(variable)) {");
+ builder.open();
+ builder.addLine("this.variables.set(variable, 0);");
+ builder.close("}");
+ builder.addLine("return this.variables.get(variable);");
+ });
+
+ emitMethod(builder, "addOne(variable)", () => {
+ builder.addLine("const val = this.get(variable);");
+ builder.addLine("this.variables.set(variable, val + 1);");
+ });
+
+ emitMethod(builder, "subtractOne(variable)", () => {
+ builder.addLine("const val = this.get(variable);");
+ builder.addLine("this.variables.set(variable, val - 1);");
+ });
+
+ emitMethod(builder, "followGoto(label)", () => {
+ builder.addLine("this.instructionPointer = this.labelInstructions.get(label);");
+ });
+
+ emitMethod(builder, "step()", () => {
+ builder.addLine("if (!this.isCompleted()) {");
+ builder.open();
+ builder.addLine("const procedure = this.instructions.get(this.instructionPointer);");
+ builder.addLine("procedure();");
+ builder.close("}");
+ builder.addLine("return this.instructionPointer;");
+ });
+
+ emitMethod(builder, "isCompleted()", () => {
+ builder.addLine("return this.instructionPointer === this.finalInstruction;");
+ });
+
+ emitMethod(builder, "getResult()", () => {
+ builder.addLine('return this.variables.get("Y");');
+ });
+
+ emitMethod(builder, "run(maxIter = 500_000)", () => {
+ builder.addLine("let iter = 0;");
+ builder.addLine("while (!this.isCompleted() && ++iter < maxIter) {");
+ builder.open();
+ builder.addLine("this.step();");
+ builder.close("}");
+ builder.addLine("if (iter < maxIter) {");
+ builder.open();
+ builder.addLine("return this.getResult();");
+ builder.close("}");
+ builder.addLine(
+ 'throw new Error("Program exceeded iteration limit. Try optimizing your instructions or increasing the cap.");'
+ );
+ });
+
+ emitMethod(builder, "main()", () => {
+ if (instructionCount > 0) {
+ builder.addLine("this.instructionPointer = 1;");
+ } else {
+ builder.addLine("this.instructionPointer = this.finalInstruction;");
+ }
+ });
+};
+
+const emitInstructionMethods = (builder, catalog) => {
+ catalog.forEach((entry) => {
+ emitMethod(builder, `${entry.name}()`, () => {
+ builder.addLine(`this.instructionPointer = ${entry.index};`);
+ compileInstruction(entry.node, builder);
+ });
+ });
+};
+
+export const compileProgram = (ast) => {
+ const builder = new CodeBuilder();
+ const godelSequence = [];
+ const methodCatalog = [];
+
+ builder.addLine("class Program {");
+ builder.open();
+ emitConstructor(builder, ast, godelSequence, methodCatalog);
+ emitRuntimeHelpers(builder, ast.instructions.length);
+ emitInstructionMethods(builder, methodCatalog);
+ builder.close("}");
+ builder.addLine("");
+ builder.addLine("// bootstrap");
+ builder.addLine("const program = new Program();");
+ builder.addLine('// program.variables.set("X1", 2);');
+ builder.addLine('// program.variables.set("X2", 3);');
+ builder.addLine("program.run();");
+ builder.addLine("console.log(program.variables);");
+ builder.addLine("program.getResult();");
+
+ return {
+ js: builder.toString(),
+ godelSequence
+ };
+};
diff --git a/src/toys/godel/js/godel-worker.js b/src/toys/godel/js/godel-worker.js
new file mode 100644
index 0000000..1ba9da4
--- /dev/null
+++ b/src/toys/godel/js/godel-worker.js
@@ -0,0 +1,42 @@
+const isPrime = (n) => {
+ if (n < 2) {
+ return false;
+ }
+ if (n === 2) {
+ return true;
+ }
+ if (n % 2 === 0) {
+ return false;
+ }
+ const limit = Math.floor(Math.sqrt(n));
+ for (let i = 3; i <= limit; i += 2) {
+ if (n % i === 0) {
+ return false;
+ }
+ }
+ return true;
+};
+
+const primes = [2];
+const primeAt = (index) => {
+ while (primes.length < index) {
+ let candidate = primes[primes.length - 1] + 1;
+ while (!isPrime(candidate)) {
+ candidate += 1;
+ }
+ primes.push(candidate);
+ }
+ return primes[index - 1];
+};
+
+const computeGodelNumber = (sequence) => {
+ return sequence.reduce((acc, exponent, idx) => {
+ const prime = BigInt(primeAt(idx + 1));
+ return acc * prime ** BigInt(exponent);
+ }, BigInt(1)) - BigInt(1);
+};
+
+self.addEventListener("message", (event) => {
+ const result = computeGodelNumber(event.data);
+ self.postMessage(result.toString());
+});
diff --git a/src/toys/godel/js/main.js b/src/toys/godel/js/main.js
new file mode 100644
index 0000000..b752206
--- /dev/null
+++ b/src/toys/godel/js/main.js
@@ -0,0 +1,5 @@
+import { GodelPlayground } from "./ui.js";
+
+document.addEventListener("DOMContentLoaded", () => {
+ new GodelPlayground();
+});
diff --git a/src/toys/godel/js/parser.js b/src/toys/godel/js/parser.js
new file mode 100644
index 0000000..a9436b6
--- /dev/null
+++ b/src/toys/godel/js/parser.js
@@ -0,0 +1,1059 @@
+const parser = /*
+ * Generated by PEG.js 0.10.0.
+ *
+ * http://pegjs.org/
+ */
+(function() {
+ "use strict";
+
+ function peg$subclass(child, parent) {
+ function ctor() { this.constructor = child; }
+ ctor.prototype = parent.prototype;
+ child.prototype = new ctor();
+ }
+
+ function peg$SyntaxError(message, expected, found, location) {
+ this.message = message;
+ this.expected = expected;
+ this.found = found;
+ this.location = location;
+ this.name = "SyntaxError";
+
+ if (typeof Error.captureStackTrace === "function") {
+ Error.captureStackTrace(this, peg$SyntaxError);
+ }
+ }
+
+ peg$subclass(peg$SyntaxError, Error);
+
+ peg$SyntaxError.buildMessage = function(expected, found) {
+ var DESCRIBE_EXPECTATION_FNS = {
+ literal: function(expectation) {
+ return "\"" + literalEscape(expectation.text) + "\"";
+ },
+
+ "class": function(expectation) {
+ var escapedParts = "",
+ i;
+
+ for (i = 0; i < expectation.parts.length; i++) {
+ escapedParts += expectation.parts[i] instanceof Array
+ ? classEscape(expectation.parts[i][0]) + "-" + classEscape(expectation.parts[i][1])
+ : classEscape(expectation.parts[i]);
+ }
+
+ return "[" + (expectation.inverted ? "^" : "") + escapedParts + "]";
+ },
+
+ any: function(expectation) {
+ return "any character";
+ },
+
+ end: function(expectation) {
+ return "end of input";
+ },
+
+ other: function(expectation) {
+ return expectation.description;
+ }
+ };
+
+ function hex(ch) {
+ return ch.charCodeAt(0).toString(16).toUpperCase();
+ }
+
+ function literalEscape(s) {
+ return s
+ .replace(/\\/g, '\\\\')
+ .replace(/"/g, '\\"')
+ .replace(/\0/g, '\\0')
+ .replace(/\t/g, '\\t')
+ .replace(/\n/g, '\\n')
+ .replace(/\r/g, '\\r')
+ .replace(/[\x00-\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
+ .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x' + hex(ch); });
+ }
+
+ function classEscape(s) {
+ return s
+ .replace(/\\/g, '\\\\')
+ .replace(/\]/g, '\\]')
+ .replace(/\^/g, '\\^')
+ .replace(/-/g, '\\-')
+ .replace(/\0/g, '\\0')
+ .replace(/\t/g, '\\t')
+ .replace(/\n/g, '\\n')
+ .replace(/\r/g, '\\r')
+ .replace(/[\x00-\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
+ .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x' + hex(ch); });
+ }
+
+ function describeExpectation(expectation) {
+ return DESCRIBE_EXPECTATION_FNS[expectation.type](expectation);
+ }
+
+ function describeExpected(expected) {
+ var descriptions = new Array(expected.length),
+ i, j;
+
+ for (i = 0; i < expected.length; i++) {
+ descriptions[i] = describeExpectation(expected[i]);
+ }
+
+ descriptions.sort();
+
+ if (descriptions.length > 0) {
+ for (i = 1, j = 1; i < descriptions.length; i++) {
+ if (descriptions[i - 1] !== descriptions[i]) {
+ descriptions[j] = descriptions[i];
+ j++;
+ }
+ }
+ descriptions.length = j;
+ }
+
+ switch (descriptions.length) {
+ case 1:
+ return descriptions[0];
+
+ case 2:
+ return descriptions[0] + " or " + descriptions[1];
+
+ default:
+ return descriptions.slice(0, -1).join(", ")
+ + ", or "
+ + descriptions[descriptions.length - 1];
+ }
+ }
+
+ function describeFound(found) {
+ return found ? "\"" + literalEscape(found) + "\"" : "end of input";
+ }
+
+ return "Expected " + describeExpected(expected) + " but " + describeFound(found) + " found.";
+ };
+
+ function peg$parse(input, options) {
+ options = options !== void 0 ? options : {};
+
+ var peg$FAILED = {},
+
+ peg$startRuleFunctions = { Program: peg$parseProgram },
+ peg$startRuleFunction = peg$parseProgram,
+
+ peg$c0 = /^[\n]/,
+ peg$c1 = peg$classExpectation(["\n"], false, false),
+ peg$c2 = function(lines) {
+ return { instructions: lines.filter((line) => typeof line !== "string" || line.trim() != "") };
+ },
+ peg$c3 = function(instruction) {
+ let x = 0;
+ let y = 0;
+ if (instruction.label) {
+ x = instruction.label.godel;
+ y = instruction.instruction.godel;
+ } else {
+ y = instruction.godel;
+ }
+ return { instruction, godel: ((2 ** x) * ((2 * y) + 1) - 1) };
+ },
+ peg$c4 = function(label, instruction) {
+ return { label, instruction };
+ },
+ peg$c5 = "[",
+ peg$c6 = peg$literalExpectation("[", false),
+ peg$c7 = "]",
+ peg$c8 = peg$literalExpectation("]", false),
+ peg$c9 = function(label) {
+ return label;
+ },
+ peg$c10 = function(conditional) { return { conditional, godel: conditional.godel }; },
+ peg$c11 = function(assignment) { return { assignment, godel: assignment.godel }; },
+ peg$c12 = function(goto) { return { goto, godel: goto.godel }; },
+ peg$c13 = function(label) {
+ return { label, godel: label.godel + 2 };
+ },
+ peg$c14 = "IF",
+ peg$c15 = peg$literalExpectation("IF", false),
+ peg$c16 = "!=",
+ peg$c17 = peg$literalExpectation("!=", false),
+ peg$c18 = "0",
+ peg$c19 = peg$literalExpectation("0", false),
+ peg$c20 = function(variable, goto) {
+ const y = variable.godel - 1;
+ const x = goto.godel;
+ return { variable, goto, godel: ((2 ** x) * ((2 * y) + 1) - 1) };
+ },
+ peg$c21 = "<-",
+ peg$c22 = peg$literalExpectation("<-", false),
+ peg$c23 = function(variable, expr) {
+ if (expr.left.symbol != variable.symbol) {
+ error("left hand variable must match right hand");
+ }
+ const x = expr.instructionNumber;
+ const y = variable.godel - 1;
+ return { variable, expr, godel: ((2 ** x) * ((2 * y) + 1) - 1) };
+ },
+ peg$c24 = "1",
+ peg$c25 = peg$literalExpectation("1", false),
+ peg$c26 = function(left, opr) {
+ const instructionNumber = { "+" : 1, "-" : 2 }[opr];
+ return { left, opr, instructionNumber };
+ },
+ peg$c27 = function(left) {
+ return { left, instructionNumber: 0 };
+ },
+ peg$c28 = "Y",
+ peg$c29 = peg$literalExpectation("Y", false),
+ peg$c30 = function(symbol) { return { symbol, godel: 1 }; },
+ peg$c31 = "X",
+ peg$c32 = peg$literalExpectation("X", false),
+ peg$c33 = "Z",
+ peg$c34 = peg$literalExpectation("Z", false),
+ peg$c35 = function(symbol, ind) {
+ const index = parseInt(ind);
+ const order = ["X", "Z"];
+ const godel = index * order.length + order.indexOf(symbol);
+ return { symbol: symbol + ind, godel };
+ },
+ peg$c36 = "GOTO",
+ peg$c37 = peg$literalExpectation("GOTO", false),
+ peg$c38 = "+",
+ peg$c39 = peg$literalExpectation("+", false),
+ peg$c40 = "-",
+ peg$c41 = peg$literalExpectation("-", false),
+ peg$c42 = /^[A-E]/,
+ peg$c43 = peg$classExpectation([["A", "E"]], false, false),
+ peg$c44 = function(symbol, ind) {
+ const index = parseInt(ind);
+ const godel = (symbol.charCodeAt(0) - "A".charCodeAt(0) + 1) + 5*(index-1);
+ return { symbol: symbol + ind, godel };
+ },
+ peg$c45 = peg$otherExpectation("integer"),
+ peg$c46 = /^[0-9]/,
+ peg$c47 = peg$classExpectation([["0", "9"]], false, false),
+ peg$c48 = function() { return parseInt(text(), 10); },
+ peg$c49 = peg$otherExpectation("whitespace"),
+ peg$c50 = /^[ \t]/,
+ peg$c51 = peg$classExpectation([" ", "\t"], false, false),
+ peg$c52 = function() { },
+
+ peg$currPos = 0,
+ peg$savedPos = 0,
+ peg$posDetailsCache = [{ line: 1, column: 1 }],
+ peg$maxFailPos = 0,
+ peg$maxFailExpected = [],
+ peg$silentFails = 0,
+
+ peg$result;
+
+ if ("startRule" in options) {
+ if (!(options.startRule in peg$startRuleFunctions)) {
+ throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
+ }
+
+ peg$startRuleFunction = peg$startRuleFunctions[options.startRule];
+ }
+
+ function text() {
+ return input.substring(peg$savedPos, peg$currPos);
+ }
+
+ function location() {
+ return peg$computeLocation(peg$savedPos, peg$currPos);
+ }
+
+ function expected(description, location) {
+ location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)
+
+ throw peg$buildStructuredError(
+ [peg$otherExpectation(description)],
+ input.substring(peg$savedPos, peg$currPos),
+ location
+ );
+ }
+
+ function error(message, location) {
+ location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)
+
+ throw peg$buildSimpleError(message, location);
+ }
+
+ function peg$literalExpectation(text, ignoreCase) {
+ return { type: "literal", text: text, ignoreCase: ignoreCase };
+ }
+
+ function peg$classExpectation(parts, inverted, ignoreCase) {
+ return { type: "class", parts: parts, inverted: inverted, ignoreCase: ignoreCase };
+ }
+
+ function peg$anyExpectation() {
+ return { type: "any" };
+ }
+
+ function peg$endExpectation() {
+ return { type: "end" };
+ }
+
+ function peg$otherExpectation(description) {
+ return { type: "other", description: description };
+ }
+
+ function peg$computePosDetails(pos) {
+ var details = peg$posDetailsCache[pos], p;
+
+ if (details) {
+ return details;
+ } else {
+ p = pos - 1;
+ while (!peg$posDetailsCache[p]) {
+ p--;
+ }
+
+ details = peg$posDetailsCache[p];
+ details = {
+ line: details.line,
+ column: details.column
+ };
+
+ while (p < pos) {
+ if (input.charCodeAt(p) === 10) {
+ details.line++;
+ details.column = 1;
+ } else {
+ details.column++;
+ }
+
+ p++;
+ }
+
+ peg$posDetailsCache[pos] = details;
+ return details;
+ }
+ }
+
+ function peg$computeLocation(startPos, endPos) {
+ var startPosDetails = peg$computePosDetails(startPos),
+ endPosDetails = peg$computePosDetails(endPos);
+
+ return {
+ start: {
+ offset: startPos,
+ line: startPosDetails.line,
+ column: startPosDetails.column
+ },
+ end: {
+ offset: endPos,
+ line: endPosDetails.line,
+ column: endPosDetails.column
+ }
+ };
+ }
+
+ function peg$fail(expected) {
+ if (peg$currPos < peg$maxFailPos) { return; }
+
+ if (peg$currPos > peg$maxFailPos) {
+ peg$maxFailPos = peg$currPos;
+ peg$maxFailExpected = [];
+ }
+
+ peg$maxFailExpected.push(expected);
+ }
+
+ function peg$buildSimpleError(message, location) {
+ return new peg$SyntaxError(message, null, null, location);
+ }
+
+ function peg$buildStructuredError(expected, found, location) {
+ return new peg$SyntaxError(
+ peg$SyntaxError.buildMessage(expected, found),
+ expected,
+ found,
+ location
+ );
+ }
+
+ function peg$parseProgram() {
+ var s0, s1, s2;
+
+ s0 = peg$currPos;
+ s1 = [];
+ s2 = peg$parseProgramInstruction();
+ if (s2 === peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 === peg$FAILED) {
+ if (peg$c0.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c1); }
+ }
+ }
+ }
+ while (s2 !== peg$FAILED) {
+ s1.push(s2);
+ s2 = peg$parseProgramInstruction();
+ if (s2 === peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 === peg$FAILED) {
+ if (peg$c0.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c1); }
+ }
+ }
+ }
+ }
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c2(s1);
+ }
+ s0 = s1;
+
+ return s0;
+ }
+
+ function peg$parseProgramInstruction() {
+ var s0, s1, s2, s3, s4;
+
+ s0 = peg$currPos;
+ s1 = peg$parse_();
+ if (s1 === peg$FAILED) {
+ s1 = null;
+ }
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parseLabeledInstruction();
+ if (s2 === peg$FAILED) {
+ s2 = peg$parseInstruction();
+ }
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parse_();
+ if (s3 === peg$FAILED) {
+ s3 = null;
+ }
+ if (s3 !== peg$FAILED) {
+ if (peg$c0.test(input.charAt(peg$currPos))) {
+ s4 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s4 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c1); }
+ }
+ if (s4 === peg$FAILED) {
+ s4 = null;
+ }
+ if (s4 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c3(s2);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseLabeledInstruction() {
+ var s0, s1, s2, s3;
+
+ s0 = peg$currPos;
+ s1 = peg$parseLabel();
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parseInstruction();
+ if (s3 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c4(s1, s3);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseLabel() {
+ var s0, s1, s2, s3, s4, s5;
+
+ s0 = peg$currPos;
+ if (input.charCodeAt(peg$currPos) === 91) {
+ s1 = peg$c5;
+ peg$currPos++;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c6); }
+ }
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 === peg$FAILED) {
+ s2 = null;
+ }
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parseLABEL_V();
+ if (s3 !== peg$FAILED) {
+ s4 = peg$parse_();
+ if (s4 === peg$FAILED) {
+ s4 = null;
+ }
+ if (s4 !== peg$FAILED) {
+ if (input.charCodeAt(peg$currPos) === 93) {
+ s5 = peg$c7;
+ peg$currPos++;
+ } else {
+ s5 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c8); }
+ }
+ if (s5 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c9(s3);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseInstruction() {
+ var s0, s1;
+
+ s0 = peg$currPos;
+ s1 = peg$parseConditional();
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c10(s1);
+ }
+ s0 = s1;
+ if (s0 === peg$FAILED) {
+ s0 = peg$currPos;
+ s1 = peg$parseAssignment();
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c11(s1);
+ }
+ s0 = s1;
+ if (s0 === peg$FAILED) {
+ s0 = peg$currPos;
+ s1 = peg$parseGoto();
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c12(s1);
+ }
+ s0 = s1;
+ }
+ }
+
+ return s0;
+ }
+
+ function peg$parseGoto() {
+ var s0, s1, s2, s3;
+
+ s0 = peg$currPos;
+ s1 = peg$parseGOTO();
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parseLABEL_V();
+ if (s3 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c13(s3);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseConditional() {
+ var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
+
+ s0 = peg$currPos;
+ if (input.substr(peg$currPos, 2) === peg$c14) {
+ s1 = peg$c14;
+ peg$currPos += 2;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c15); }
+ }
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parseVAR();
+ if (s3 !== peg$FAILED) {
+ s4 = peg$parse_();
+ if (s4 === peg$FAILED) {
+ s4 = null;
+ }
+ if (s4 !== peg$FAILED) {
+ if (input.substr(peg$currPos, 2) === peg$c16) {
+ s5 = peg$c16;
+ peg$currPos += 2;
+ } else {
+ s5 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c17); }
+ }
+ if (s5 !== peg$FAILED) {
+ s6 = peg$parse_();
+ if (s6 === peg$FAILED) {
+ s6 = null;
+ }
+ if (s6 !== peg$FAILED) {
+ if (input.charCodeAt(peg$currPos) === 48) {
+ s7 = peg$c18;
+ peg$currPos++;
+ } else {
+ s7 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c19); }
+ }
+ if (s7 !== peg$FAILED) {
+ s8 = peg$parse_();
+ if (s8 !== peg$FAILED) {
+ s9 = peg$parseGoto();
+ if (s9 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c20(s3, s9);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseAssignment() {
+ var s0, s1, s2, s3, s4, s5;
+
+ s0 = peg$currPos;
+ s1 = peg$parseVAR();
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 !== peg$FAILED) {
+ if (input.substr(peg$currPos, 2) === peg$c21) {
+ s3 = peg$c21;
+ peg$currPos += 2;
+ } else {
+ s3 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c22); }
+ }
+ if (s3 !== peg$FAILED) {
+ s4 = peg$parse_();
+ if (s4 !== peg$FAILED) {
+ s5 = peg$parseExpression();
+ if (s5 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c23(s1, s5);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseExpression() {
+ var s0, s1, s2, s3, s4, s5;
+
+ s0 = peg$currPos;
+ s1 = peg$parseVAR();
+ if (s1 !== peg$FAILED) {
+ s2 = peg$parse_();
+ if (s2 !== peg$FAILED) {
+ s3 = peg$parseOPERATION();
+ if (s3 !== peg$FAILED) {
+ s4 = peg$parse_();
+ if (s4 !== peg$FAILED) {
+ if (input.charCodeAt(peg$currPos) === 49) {
+ s5 = peg$c24;
+ peg$currPos++;
+ } else {
+ s5 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c25); }
+ }
+ if (s5 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c26(s1, s3);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ if (s0 === peg$FAILED) {
+ s0 = peg$currPos;
+ s1 = peg$parseVAR();
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c27(s1);
+ }
+ s0 = s1;
+ }
+
+ return s0;
+ }
+
+ function peg$parseVAR() {
+ var s0, s1, s2, s3;
+
+ s0 = peg$currPos;
+ if (input.charCodeAt(peg$currPos) === 89) {
+ s1 = peg$c28;
+ peg$currPos++;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c29); }
+ }
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c30(s1);
+ }
+ s0 = s1;
+ if (s0 === peg$FAILED) {
+ s0 = peg$currPos;
+ if (input.charCodeAt(peg$currPos) === 88) {
+ s1 = peg$c31;
+ peg$currPos++;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c32); }
+ }
+ if (s1 === peg$FAILED) {
+ if (input.charCodeAt(peg$currPos) === 90) {
+ s1 = peg$c33;
+ peg$currPos++;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c34); }
+ }
+ }
+ if (s1 !== peg$FAILED) {
+ s2 = [];
+ s3 = peg$parseInteger();
+ if (s3 !== peg$FAILED) {
+ while (s3 !== peg$FAILED) {
+ s2.push(s3);
+ s3 = peg$parseInteger();
+ }
+ } else {
+ s2 = peg$FAILED;
+ }
+ if (s2 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c35(s1, s2);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ }
+
+ return s0;
+ }
+
+ function peg$parseGOTO() {
+ var s0;
+
+ if (input.substr(peg$currPos, 4) === peg$c36) {
+ s0 = peg$c36;
+ peg$currPos += 4;
+ } else {
+ s0 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c37); }
+ }
+
+ return s0;
+ }
+
+ function peg$parseOPERATION() {
+ var s0;
+
+ if (input.charCodeAt(peg$currPos) === 43) {
+ s0 = peg$c38;
+ peg$currPos++;
+ } else {
+ s0 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c39); }
+ }
+ if (s0 === peg$FAILED) {
+ if (input.charCodeAt(peg$currPos) === 45) {
+ s0 = peg$c40;
+ peg$currPos++;
+ } else {
+ s0 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c41); }
+ }
+ }
+
+ return s0;
+ }
+
+ function peg$parseLABEL_V() {
+ var s0, s1, s2, s3;
+
+ s0 = peg$currPos;
+ if (peg$c42.test(input.charAt(peg$currPos))) {
+ s1 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c43); }
+ }
+ if (s1 !== peg$FAILED) {
+ s2 = [];
+ s3 = peg$parseInteger();
+ if (s3 !== peg$FAILED) {
+ while (s3 !== peg$FAILED) {
+ s2.push(s3);
+ s3 = peg$parseInteger();
+ }
+ } else {
+ s2 = peg$FAILED;
+ }
+ if (s2 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c44(s1, s2);
+ s0 = s1;
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+ } else {
+ peg$currPos = s0;
+ s0 = peg$FAILED;
+ }
+
+ return s0;
+ }
+
+ function peg$parseInteger() {
+ var s0, s1, s2;
+
+ peg$silentFails++;
+ s0 = peg$currPos;
+ s1 = [];
+ if (peg$c46.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c47); }
+ }
+ if (s2 !== peg$FAILED) {
+ while (s2 !== peg$FAILED) {
+ s1.push(s2);
+ if (peg$c46.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c47); }
+ }
+ }
+ } else {
+ s1 = peg$FAILED;
+ }
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c48();
+ }
+ s0 = s1;
+ peg$silentFails--;
+ if (s0 === peg$FAILED) {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c45); }
+ }
+
+ return s0;
+ }
+
+ function peg$parse_() {
+ var s0, s1, s2;
+
+ peg$silentFails++;
+ s0 = peg$currPos;
+ s1 = [];
+ if (peg$c50.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c51); }
+ }
+ if (s2 !== peg$FAILED) {
+ while (s2 !== peg$FAILED) {
+ s1.push(s2);
+ if (peg$c50.test(input.charAt(peg$currPos))) {
+ s2 = input.charAt(peg$currPos);
+ peg$currPos++;
+ } else {
+ s2 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c51); }
+ }
+ }
+ } else {
+ s1 = peg$FAILED;
+ }
+ if (s1 !== peg$FAILED) {
+ peg$savedPos = s0;
+ s1 = peg$c52();
+ }
+ s0 = s1;
+ peg$silentFails--;
+ if (s0 === peg$FAILED) {
+ s1 = peg$FAILED;
+ if (peg$silentFails === 0) { peg$fail(peg$c49); }
+ }
+
+ return s0;
+ }
+
+ peg$result = peg$startRuleFunction();
+
+ if (peg$result !== peg$FAILED && peg$currPos === input.length) {
+ return peg$result;
+ } else {
+ if (peg$result !== peg$FAILED && peg$currPos < input.length) {
+ peg$fail(peg$endExpectation());
+ }
+
+ throw peg$buildStructuredError(
+ peg$maxFailExpected,
+ peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null,
+ peg$maxFailPos < input.length
+ ? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
+ : peg$computeLocation(peg$maxFailPos, peg$maxFailPos)
+ );
+ }
+ }
+
+ return {
+ SyntaxError: peg$SyntaxError,
+ parse: peg$parse
+ };
+})();
+
+export default parser;
+export const SyntaxError = parser.SyntaxError;
diff --git a/src/toys/godel/js/ui.js b/src/toys/godel/js/ui.js
new file mode 100644
index 0000000..2952140
--- /dev/null
+++ b/src/toys/godel/js/ui.js
@@ -0,0 +1,228 @@
+import parser from "./parser.js";
+import { compileProgram } from "./compiler.js";
+
+const SAMPLE_PROGRAM = `// THIS PROGRAM COMPUTES X1 + X2
+
+// Y <- X1
+[ A1 ] IF X1 != 0 GOTO A2
+ GOTO B1
+[ A2 ] X1 <- X1 - 1
+ Y <- Y + 1
+ GOTO A1
+
+// Z1 <- X2
+[ B1 ] IF X2 != 0 GOTO B2
+ GOTO C1
+[ B2 ] X2 <- X2 - 1
+ Z1 <- Z1 + 1
+ GOTO B1
+
+// Y <- Y + Z1
+[ C1 ] IF Z1 != 0 GOTO C2
+ GOTO E1
+[ C2 ] Z1 <- Z1 - 1
+ Y <- Y + 1
+ GOTO C1`;
+
+const STATUS_VARIANTS = {
+ success: "text-success",
+ error: "text-error",
+ info: "muted"
+};
+
+export class GodelPlayground {
+ constructor() {
+ this.elements = {
+ compileBtn: document.getElementById("compile-btn"),
+ copyBtn: document.getElementById("copy-btn"),
+ evalBtn: document.getElementById("eval-btn"),
+ computeNumberBtn: document.getElementById("compute-godel-btn"),
+ compileStatus: document.getElementById("compile-status"),
+ evalStatus: document.getElementById("eval-status"),
+ godelSequence: document.getElementById("godel-sequence"),
+ godelNumber: document.getElementById("godel-number")
+ };
+
+ this.sourceEditor = null;
+ this.compiledEditor = null;
+ this.worker = null;
+ this.latestSequence = [];
+
+ this.init();
+ }
+
+ init() {
+ this.setupEditors();
+ this.bindEvents();
+ this.hydrateFromParams();
+ if (!this.getSource().trim()) {
+ this.setSource(SAMPLE_PROGRAM);
+ }
+ this.compileSource();
+ }
+
+ setupEditors() {
+ this.sourceEditor = adelieEditor.init("#source-editor", {
+ language: "javascript"
+ });
+ this.compiledEditor = adelieEditor.init("#compiled-editor", {
+ language: "javascript"
+ });
+ this.setSource(SAMPLE_PROGRAM);
+ }
+
+ bindEvents() {
+ this.elements.compileBtn.addEventListener("click", () => this.compileSource());
+ this.elements.evalBtn.addEventListener("click", () => this.evaluateCompiled());
+ this.elements.copyBtn.addEventListener("click", () => this.copyShareLink());
+ this.elements.computeNumberBtn.addEventListener("click", () => this.computeGodelNumber());
+
+ document.addEventListener("keydown", (event) => {
+ if (event.ctrlKey && event.key === "Enter") {
+ event.preventDefault();
+ this.compileSource();
+ }
+ });
+ }
+
+ hydrateFromParams() {
+ const params = new URLSearchParams(window.location.search);
+ const encoded = params.get("instructions");
+ if (encoded) {
+ try {
+ const decoded = atob(encoded);
+ this.setSource(decoded);
+ } catch (error) {
+ console.warn("Failed to decode instructions from URL", error);
+ }
+ }
+ }
+
+ getSource() {
+ return this.sourceEditor.state.doc.toString();
+ }
+
+ setSource(content) {
+ const docLength = this.sourceEditor.state.doc.toString().length;
+ this.sourceEditor.dispatch({
+ changes: { from: 0, to: docLength, insert: content }
+ });
+ }
+
+ getCompiled() {
+ return this.compiledEditor.state.doc.toString();
+ }
+
+ setCompiled(content) {
+ const docLength = this.compiledEditor.state.doc.toString().length;
+ this.compiledEditor.dispatch({
+ changes: { from: 0, to: docLength, insert: content }
+ });
+ }
+
+ prepareSource(source) {
+ return source.replace(/\/\/.*$/gm, "").trim();
+ }
+
+ compileSource() {
+ const raw = this.getSource();
+ const prepared = this.prepareSource(raw);
+
+ if (!prepared) {
+ this.setStatus("compile", "Provide some source to compile", "error");
+ return;
+ }
+
+ try {
+ const ast = parser.parse(prepared);
+ const { js, godelSequence } = compileProgram(ast);
+ this.latestSequence = godelSequence;
+ this.setCompiled(js);
+ this.renderSequence(godelSequence);
+ this.setStatus(
+ "compile",
+ `Compiled ${godelSequence.length} instruction${godelSequence.length === 1 ? "" : "s"}.`,
+ "success"
+ );
+ this.elements.computeNumberBtn.disabled = godelSequence.length === 0;
+ } catch (error) {
+ this.latestSequence = [];
+ this.renderSequence([]);
+ this.elements.computeNumberBtn.disabled = true;
+ this.setStatus("compile", error.message || "Failed to compile program", "error");
+ }
+ }
+
+ evaluateCompiled() {
+ const js = this.getCompiled();
+ if (!js.trim()) {
+ this.setStatus("eval", "Compile a program first", "error");
+ return;
+ }
+
+ try {
+ const result = (0, eval)(js);
+ this.setStatus(
+ "eval",
+ `Result: ${typeof result === "undefined" ? "(no return)" : result}`,
+ "success"
+ );
+ } catch (error) {
+ this.setStatus("eval", error.message || "Failed to evaluate program", "error");
+ }
+ }
+
+ renderSequence(sequence) {
+ if (!sequence.length) {
+ this.elements.godelSequence.textContent = "Compile to view the Gödel sequence.";
+ this.elements.godelNumber.textContent = "";
+ return;
+ }
+ this.elements.godelSequence.textContent = `[${sequence.join(", ")}]`;
+ this.elements.godelNumber.textContent = "";
+ }
+
+ copyShareLink() {
+ const data = btoa(this.getSource());
+ const url = `${window.location.href.split("?")[0]}?instructions=${data}`;
+
+ navigator.clipboard.writeText(url)
+ .then(() => alert("Shareable link copied to clipboard"))
+ .catch(() => alert("Failed to copy link"));
+ }
+
+ computeGodelNumber() {
+ if (!this.latestSequence.length) {
+ this.setStatus("compile", "Compile a program to produce its Gödel sequence", "error");
+ return;
+ }
+
+ this.elements.godelNumber.textContent = "Working...";
+ this.elements.computeNumberBtn.disabled = true;
+
+ const worker = this.getWorker();
+ worker.onmessage = (event) => {
+ this.elements.godelNumber.textContent = event.data;
+ this.elements.computeNumberBtn.disabled = false;
+ };
+ worker.onerror = () => {
+ this.elements.godelNumber.textContent = "Failed to compute Gödel number";
+ this.elements.computeNumberBtn.disabled = false;
+ };
+ worker.postMessage(this.latestSequence);
+ }
+
+ getWorker() {
+ if (!this.worker) {
+ const workerUrl = new URL("./godel-worker.js", import.meta.url);
+ this.worker = new Worker(workerUrl, { type: "module" });
+ }
+ return this.worker;
+ }
+
+ setStatus(kind, message, variant = "info") {
+ const element = kind === "compile" ? this.elements.compileStatus : this.elements.evalStatus;
+ element.textContent = message;
+ element.className = `status-text ${STATUS_VARIANTS[variant] || ""}`;
+ }
+}