Method parseTemplate

packages/expr/src/runtime.ts:128–146

* Parse a template and validate all embedded expressions.

(template: string)

     * Parse a template and validate all embedded expressions.
     */
    public parseTemplate(template: string): { parts: TemplatePart[]; errors: ExpressionError[] } {
        const parts = parseTemplateParts(template);
        const errors: ExpressionError[] = [];

        for (const part of parts) {
            if (part.type === 'expression') {
                try {
                    const { invalidNodes } = this.parse(part.value);
                    if (invalidNodes.length > 0) {
                        errors.push(new ExpressionError('Invalid expression'));
                    }
                } catch (error) {
                    errors.push(error as ExpressionError);
                }
            }
        }

        return { parts, errors };
    }

    /**
     * Evaluate a template string containing `{{ expression }}` placeholders.