[][src]Module casperlabs_contract::contract_api::storage

Functions for accessing and mutating local and global state.

Functions

add

Adds value to the one currently under uref in the global state.

add_contract_version

Add a new version of a contract to the contract stored at the given Key. Note that this contract must have been created by create_contract or create_contract_package_at_hash first.

add_local

Adds value to the one currently under key in the context-local partition of global state.

create_contract_package_at_hash

Create a new (versioned) contract stored under a Key::Hash. Initially there are no versions; a version must be added via add_contract_version before the contract can be executed.

create_contract_user_group

Create a new "user group" for a (versioned) contract. User groups associate a set of URefs with a label. Entry points on a contract can be given a list of labels they accept and the runtime will check that a URef from at least one of the allowed groups is present in the caller's context before execution. This allows access control for entry_points of a contract. This function returns the list of new URefs created for the group (the list will contain num_new_urefs elements).

disable_contract_version

Disable a version of a contract from the contract stored at the given Key. That version of the contract will no longer be callable by call_versioned_contract. Note that this contract must have been created by create_contract or create_contract_package_at_hash first.

new_contract

Create a new contract stored under a Key::Hash at version 1 if named_keys are provided, will apply them if hash_name is provided, puts contract hash in current context's named keys under hash_name if uref_name is provided, puts access_uref in current context's named keys under uref_name

new_uref

Returns a new unforgeable pointer, where the value is initialized to init.

provision_contract_user_group_uref

Extends specified group with a new URef.

read

Reads value under uref in the global state.

read_local

Reads the value under key in the context-local partition of global state.

read_or_revert

Reads value under uref in the global state, reverts if value not found or is not T.

remove_contract_user_group

Remove a named group from given contract.

remove_contract_user_group_urefs

Removes specified urefs from a named group.

write

Writes value under uref in the global state.

write_local

Writes value under key in the context-local partition of global state.