A component manifest is a file that defines a component by encoding a component declaration. This document gives an overview of the concepts used by component declarations. Component declarations contain information about the following:
- Execution: Details about the runtime and executable binary for components that include an executable program.
- Composition: Child component instances and dynamic collections managed by this component.
- Capabilities: Routing rules that describe how capabilities are provided and consumed between components.
- Metadata: Freeform data, which is ignored by the component framework but can be interpreted by third parties.
Component manifest source
component manifest source
is a file that
encodes part of a component manifest. Component manifest sources are written in
component manifest language (CML), which is the developer-facing source format
for component manifests. CML files are JSON5
files that end with a
A component manifest is a binary file that encodes the component declaration, usually distributed as part of a package . The binary format is the persistent encoded form of the component declaration FIDL object.
A component URL identifies a component in a package by its
component manifest resource path, typically ending in a
describes what a
component can do, the capabilities it uses and exposes, its children, and other
information needed to run the component. Component declarations are represented
Component FIDL table.
The framework calls a component resolver to retrieve a component declaration from a component URL.