_getDescAttributeValue()

in packages/babel-plugin-fbt/src/babel-processors/JSXFbtProcessor.js [287:313]

• 26 lines of code
• 5 McCabe index (conditional complexity)

  _getDescAttributeValue() {
    const {moduleName} = this;
    const descAttr = getAttributeByNameOrThrow(
      this._getOpeningElementAttributes(),
      'desc',
    );
    const {node} = this;
    if (!descAttr || descAttr.value == null) {
      throw errorAt(node, `<${moduleName}> requires a "desc" attribute`);
    }
    switch (descAttr.value.type) {
      case 'JSXExpressionContainer':
        // @babel/parser should not allow this scenario normally
        invariant(
          descAttr.value.expression.type !== 'JSXEmptyExpression',
          'unexpected',
        );
        return descAttr.value.expression;
      case 'StringLiteral':
        return descAttr.value;
    }
    throw errorAt(
      node,
      `<${moduleName}> "desc" attribute must be a string literal ` +
        `or a non-empty JSX expression`,
    );
  }