function _tryMakePrimitiveType()

in src/assembler.ts [2254:2285]

• 30 lines of code
• 11 McCabe index (conditional complexity)

    function _tryMakePrimitiveType(this: Assembler): spec.PrimitiveTypeReference | undefined {
      if (!type.symbol) {
        if (type.flags & ts.TypeFlags.Object) {
          if (isTupleType(type as ts.ObjectType)) {
            this._diagnostics.push(
              JsiiDiagnostic.JSII_1999_UNSUPPORTED.create(declaration, { what: 'Tuple types', alternative: 'arrays' }),
            );
          }

          return { primitive: spec.PrimitiveType.Json };
        }
        if (type.flags & (ts.TypeFlags.Any | ts.TypeFlags.Unknown)) {
          return spec.CANONICAL_ANY;
        }
      } else if (
        type.symbol.valueDeclaration &&
        isUnder(type.symbol.valueDeclaration.getSourceFile().fileName, this.stdlib)
      ) {
        switch (type.symbol.name) {
          case 'Boolean':
            return { primitive: spec.PrimitiveType.Boolean };
          case 'Date':
            return { primitive: spec.PrimitiveType.Date };
          case 'Number':
            return { primitive: spec.PrimitiveType.Number };
          case 'String':
            return { primitive: spec.PrimitiveType.String };
        }
      }
      // Not a primitive type!
      return undefined;
    }