Module codegen 

Yul Code Generation Module

Generates NeoVM bytecode from Yul AST. This module handles the translation of high-level Yul constructs to low-level NeoVM instructions.

Output

• CompilationResult - Complete compilation output including bytecode, ABI, manifest, and debug information

Code Generation Pipeline

1. AST traversal and instruction emission
2. Label resolution and jump patching
3. Optimization passes
4. Final bytecode assembly

Structs

CodeGenerator

Code generator for Yul AST to NeoVM bytecode

CompilationResult

Result of compiling Yul source to NeoVM bytecode

FunctionMeta

Metadata for a compiled function, collected during bytecode generation.

LoopContext

Loop context for break/continue tracking

VariableInfo

Variable information for code generation

Constants

INIT_MARKER_LEN

Length of the init marker prepended to bytecode (PUSHDATA1 + len + b“init“).

Functions

emit_ldloc 🔒

Emit LDLOC instruction with proper index encoding NeoVM uses 0x10-0x13 for indices 0-3, or 0x14 + index for larger indices

emit_stloc 🔒

Emit STLOC instruction with proper index encoding NeoVM uses 0x0C-0x0F for indices 0-3, or 0x14 + index for larger indices

interop_id_bytes

Compute the 4-byte interop ID for a Neo syscall name This is used to identify syscalls in NeoVM bytecode