Transaction

empty

/// Creates a new empty transaction (no inputs or outputs, zero fee).
数据全部清空、归零。

new

    /// Creates a new transaction initialized with
    /// the provided inputs, outputs, kernels
    // 新建

with_offset

    /// Creates a new transaction using this transaction as a template
    /// and with the specified offset.
    // 新建

with_input

    /// Builds a new transaction with the provided inputs added. Existing
    /// inputs, if any, are kept intact.
    // 新建

with_output

    /// Builds a new transaction with the provided output added. Existing
    /// outputs, if any, are kept intact.
    // 新建

fee

/// Total fee for a transaction is the sum of fees of all kernels.
// 获取数据

overage

同 fee

lock_height

/// Lock height of a transaction is the max lock height of the kernels.
// 获取数据

verify_weight

// Verify the body is not too big in terms of number of inputs|outputs|kernels.

verify_sorted

// Verify that inputs|outputs|kernels are all sorted in lexicographical order.

verify_cut_through

// Verify that no input is spending an output from the same block.

verify_features

    /// Verify we have no invalid outputs or kernels in the transaction
    /// due to invalid features.
    /// Specifically, a transaction cannot contain a coinbase output or a coinbase kernel.

verify_output_features

// Verify we have no outputs tagged as COINBASE_OUTPUT.

verify_kernel_features

// Verify we have no kernels tagged as COINBASE_KERNEL.

validate_read

    /// "Lightweight" validation that we can perform quickly during read/deserialization.
    /// Subset of full validation that skips expensive verification steps, specifically -
    /// * rangeproof verification
    /// * kernel signature verification

validate

verify_features // OutputFeatures 和 KernelFeatures
verify_weight // inputs、outputs、kernels 三者的数据长度与设置值比较
verify_kernel_sums // 巧妙的将手续费和偏移量结合在一起，并进行验证
verify_sorted // inputs、outputs、kernels 三者都是数组，需保证其内部数据的顺序
verify_cut_through // 输入、输出两者对比，不存在相同的 commitment
verify_rangeproofs // 即每个输出的 verify_proof
verify_kernel_signatures // 即每个 kernel 对自身数据的验证

tx_weight

/// Calculate transaction weight

weight

/// Calculate transaction weight from transaction details
// 输入长度 + 输出长度