Web3AptosEx.Aptos.SmartContractParser (web3_aptos_ex v1.3.9)

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Functions

Parses the given binary as parse.

module hello_blockchain::message {

use std::error; use std::signer; use std::string; use aptos_framework::account; use aptos_framework::event;

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parse(binary, opts \\ [])

@spec parse(binary(), keyword()) ::
  {:ok, [term()], rest, context, line, byte_offset}
  | {:error, reason, rest, context, line, byte_offset}
when line: {pos_integer(), byte_offset},
     byte_offset: pos_integer(),
     rest: binary(),
     reason: String.t(),
     context: map()

Parses the given binary as parse.

Returns {:ok, [token], rest, context, position, byte_offset} or {:error, reason, rest, context, line, byte_offset} where position describes the location of the parse (start position) as {line, offset_to_start_of_line}.

To column where the error occurred can be inferred from byte_offset - offset_to_start_of_line.

options

Options

  • :byte_offset - the byte offset for the whole binary, defaults to 0
  • :line - the line and the byte offset into that line, defaults to {1, byte_offset}
  • :context - the initial context value. It will be converted to a map
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parse_code(contract_code)

module hello_blockchain::message {

use std::error; use std::signer; use std::string; use aptos_framework::account; use aptos_framework::event;

//:!:>resource struct MessageHolder has key {

message: string::String,
message_change_events: event::EventHandle<MessageChangeEvent>,

} //<:!:resource

struct MessageChangeEvent has drop, store {

from_message: string::String,
to_message: string::String,

}

/// There is no message present const ENO_MESSAGE: u64 = 0;

#[view] public fun get_message(addr: address): string::String acquires MessageHolder {

assert!(exists<MessageHolder>(addr), error::not_found(ENO_MESSAGE));
borrow_global<MessageHolder>(addr).message

}

public entry fun set_message(account: signer, message: string::String) acquires MessageHolder {

let account_addr = signer::address_of(&account);
if (!exists<MessageHolder>(account_addr)) {
    move_to(&account, MessageHolder {
        message,
        message_change_events: account::new_event_handle<MessageChangeEvent>(&account),
    })
} else {
    let old_message_holder = borrow_global_mut<MessageHolder>(account_addr);
    let from_message = old_message_holder.message;
    event::emit_event(&mut old_message_holder.message_change_events, MessageChangeEvent {
        from_message,
        to_message: copy message,
    });
    old_message_holder.message = message;
}

}

#[test(account = @0x1)] public entry fun sender_can_set_message(account: signer) acquires MessageHolder {

let addr = signer::address_of(&account);
aptos_framework::account::create_account_for_test(addr);
set_message(account,  string::utf8(b"Hello, Blockchain"));

assert!(
  get_message(addr) == string::utf8(b"Hello, Blockchain"),
  ENO_MESSAGE
);

} }

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parse_event(contract_code)

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parse_fun(contract_code)

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parse_struct(contract_code)