pushStatement()

in packages/sqrl/src/compile/SqrlParserState.ts [233:296]
61 lines of code
17 McCabe index (conditional complexity)

  pushStatement(ast: Ast) {
    invariant(
      this._pushStatement !== null,
      "ParserState push statement not set"
    );
    if (ast.type === "let") {
      if (ast.expr.type === "call" && ast.expr.func === INPUT_FUNCTION) {
        if (!this.slotIsEmpty(ast.feature)) {
          throw buildSqrlError(ast, "Multiple definitions of feature");
        }

        if (this.remainingInputs.hasOwnProperty(ast.feature)) {
          this.slots[ast.feature] = new SqrlConstantSlot(
            ast.feature,
            this.remainingInputs[ast.feature]
          );
          delete this.remainingInputs[ast.feature];
        } else {
          this.slots[ast.feature] = new SqrlInputSlot(ast.feature);
        }
        return;
      }
    } else if (
      ast.type === "call" &&
      ast.func === "_resetReplaceableFeatures"
    ) {
      sqrlInvariant(
        ast,
        ast.args.length === 0,
        "Expected no arguments to _resetReplaceableFeatures"
      );
      this.resetReplaceableFeatures();
      return;
    }

    ast = this.transform(ast);
    if (ast.type === "let") {
      const oldSlot = this.slots[ast.feature];
      if (
        this.slotIsEmpty(ast.feature) ||
        (oldSlot instanceof SqrlInputSlot && this.allowReplaceInput) ||
        (oldSlot instanceof SqrlFixedSlot && oldSlot.replaceable)
      ) {
        this.slots[ast.feature] = new SqrlFeatureSlot(ast.feature);
      }
      const slot = this.slots[ast.feature];
      if (!(slot instanceof SqrlFeatureSlot)) {
        throw buildSqrlError(ast, "Feature was previously defined");
      }

      slot.mergeGlobal(ast, this.globalWhere, (ast: Ast, globalWhere: Ast) =>
        this.combineWithProvidedGlobalWhere(ast, globalWhere)
      );
    } else if (ast.type === "rule") {
      if (!this.slotIsEmpty(ast.name)) {
        throw buildSqrlError(ast, "Feature was previously defined");
      }
      const slot = new SqrlRuleSlot(ast.name);
      this.slots[ast.name] = slot;
      slot.setRule(ast as RuleAst, this.globalWhere);
    } else {
      this._pushStatement(ast);
    }
  }