Function getDefaultPropsForClassComponent

dash/extract-meta.js:570–604

(type, source)

        }, {});

    const getDefaultPropsForClassComponent = (type, source) => {
        // For class component, the type has its own property, then get the
        // first declaration and one of them will be either
        // an ObjectLiteralExpression or an Identifier which get in the
        // newChild with the proper props.
        const defaultProps = type.getProperty('defaultProps');
        if (!defaultProps) {
            return {};
        }
        const decl = defaultProps.getDeclarations()[0];
        let propValues = {};

        decl.getChildren().forEach(child => {
            let newChild = child;

            if (ts.isIdentifier(child)) {
                // There should be two identifier, the first is ignored.
                const value = source.locals.get(child.escapedText);
                if (
                    value &&
                    value.valueDeclaration &&
                    ts.isVariableDeclaration(value.valueDeclaration) &&
                    value.valueDeclaration.initializer
                ) {
                    newChild = value.valueDeclaration.initializer;
                }
            }

            const {properties} = newChild;
            if (properties) {
                propValues = getDefaultPropsValues(properties);
            }
        });
        return propValues;
    };

    const getProps = (
        properties,