Struct EVMConditionEvaluator

pub struct EVMConditionEvaluator<'a> { /* private fields */ }

Implementations

impl<'a> EVMConditionEvaluator<'a>

pub fn new(args: &'a EVMArgs) -> Self

pub fn check_json_value_matches_str( &self, lhs_json: &JsonValue, rhs_str: &str, ) -> bool

Helper to check if a serde_json::Value matches a target string. Used by compare_array for items within a JSON array.

Arguments:

• lhs_json: The left-hand side value as a JSON value.
• rhs_str: The right-hand side value as a string.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_array( &self, lhs_json_array_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares an “array” type parameter.

Arguments:

• lhs_json_array_str: The left-hand side value as a JSON array string.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_u256( &self, left_str: &str, operator: &ComparisonOperator, right_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares potential U256 LHS value with the RHS literal value Handles decimal and hex inputs for both sides

Arguments:

• left_str: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• right_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_i256( &self, left_str: &str, operator: &ComparisonOperator, right_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares potential I256 LHS value with the RHS literal value

Arguments:

• left_str: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• right_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_address( &self, left: &str, operator: &ComparisonOperator, right_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares an EVM address (string) with a literal value based on the operator. Only supports Eq and Ne operators.

Arguments:

• left: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• right_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_string( &self, lhs_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares a string value with a literal value based on the operator. Supports Eq, Ne, StartsWith, EndsWith, and Contains operators.

Arguments:

• lhs_str: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_fixed_point( &self, lhs_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares a fixed-point number (Decimal) with a literal value.

Arguments:

• lhs_str: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_boolean( &self, lhs_value_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares a boolean value (true/false) with a literal value. Only supports Eq and Ne operators.

Arguments:

• lhs_value_str: The left-hand side value as a string.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.

pub fn compare_map( &self, lhs_json_map_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

Compares a map (JSON object) value with a literal value.

Arguments:

• lhs_json_map_str: The left-hand side value as a JSON map string.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.
• error if the comparison is not supported.

Trait Implementations

impl ConditionEvaluator for EVMConditionEvaluator<'_>

fn get_base_param(&self, name: &str) -> Result<(&str, &str), EvaluationError>

This method is used to get the base parameter of the EVM condition evaluator.

Arguments:

• name: The name of the parameter to get.

Returns:

• The base parameter.

fn compare_final_values( &self, lhs_kind_str: &str, lhs_value_str: &str, operator: &ComparisonOperator, rhs_literal: &LiteralValue<'_>, ) -> Result<bool, EvaluationError>

This method is used to compare the final values of the EVM condition evaluator.

Arguments:

• lhs_kind_str: The kind of the left-hand side value.
• lhs_value_str: The value of the left-hand side value.
• operator: The operator to use for the comparison.
• rhs_literal: The right-hand side value.

Returns:

• true if the comparison is true, false otherwise.
• error if the comparison is not supported.

fn get_kind_from_json_value(&self, value: &Value) -> String

This method is used to get the kind of the value from the JSON value.

Arguments:

• value: The JSON value to get the kind from.

Returns:

• The kind of the value.