1 files changed, 0 insertions, 226 deletions
diff --git a/src/toys/godel/js/compiler.js b/src/toys/godel/js/compiler.js
deleted file mode 100644
index d15c0f4..0000000
--- a/src/toys/godel/js/compiler.js
+++ /dev/null
@@ -1,226 +0,0 @@
-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
-  };
-};