neo-decompiler 0.10.1

Neo N3 NEF decompiler: parse, disassemble, lift bytecode to high-level pseudocode and C# skeletons, with a CLI, JSON reports, and optional WebAssembly bindings.
Documentation 
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use crate::instruction::OpCode;

use super::super::super::HighLevelEmitter;

impl HighLevelEmitter {
    pub(super) fn is_conditional_branch(opcode: OpCode) -> bool {
        matches!(
            opcode,
            OpCode::Jmpif
                | OpCode::Jmpif_L
                | OpCode::Jmpifnot
                | OpCode::Jmpifnot_L
                | OpCode::JmpEq
                | OpCode::JmpEq_L
                | OpCode::JmpNe
                | OpCode::JmpNe_L
                | OpCode::JmpGt
                | OpCode::JmpGt_L
                | OpCode::JmpGe
                | OpCode::JmpGe_L
                | OpCode::JmpLt
                | OpCode::JmpLt_L
                | OpCode::JmpLe
                | OpCode::JmpLe_L
        )
    }

    pub(super) fn has_internal_crossing_branch(
        &self,
        branch_offset: usize,
        false_target: usize,
    ) -> bool {
        let start_index = self
            .index_by_offset
            .range((branch_offset + 1)..false_target)
            .next()
            .map(|(_, index)| *index);
        let Some(start_index) = start_index else {
            return false;
        };
        let end_index = self
            .index_by_offset
            .range(false_target..)
            .next()
            .map(|(_, index)| *index)
            .unwrap_or(self.program.len());

        self.program[start_index..end_index].iter().any(|inner| {
            Self::is_conditional_branch(inner.opcode)
                && self
                    .forward_jump_target(inner)
                    .map(|target| target > false_target)
                    .unwrap_or(false)
        })
    }

    pub(super) fn has_crossing_closer(&self, target: usize) -> bool {
        self.pending_closers
            .keys()
            .next()
            .map(|next_close| target > *next_close)
            .unwrap_or(false)
    }
}