Struct CompileConfig 

pub struct CompileConfig {

    pub opt_level: u8,
    pub target: TargetSpec,
    pub bounds_check: bool,
    pub safety_bounds: SafetyBounds,
    pub hardware: String,
    pub no_optimize: bool,
    pub loom_compat: bool,
    pub num_imports: u32,
    pub func_arg_counts: Vec<u32>,
    pub type_arg_counts: Vec<u32>,
    pub relocatable: bool,
    pub native_pointer_abi: bool,
    pub linear_memory_bytes: u32,
}

Configuration for a compilation run

Fields

opt_level: u8

Optimization level (0 = none, 1 = fast, 2 = default, 3 = aggressive)

target: TargetSpec

Target specification

bounds_check: bool

Legacy: enable software bounds checking for memory operations. Deprecated in favor of safety_bounds. When set, equivalent to SafetyBounds::Software. Kept for backwards compatibility with callers that haven’t migrated yet.

safety_bounds: SafetyBounds

Phase-1 unified safety-bounds knob. If bounds_check is true and this is None, the legacy field wins (back-compat). If both are set, safety_bounds wins.

hardware: String

Hardware profile name (e.g. “nrf52840”, “stm32f407”)

no_optimize: bool

Skip optimization passes (direct instruction selection)

loom_compat: bool

Use Loom-compatible optimization preset

num_imports: u32

Number of imported functions (calls to indices below this use Meld dispatch)

func_arg_counts: Vec<u32>

AAPCS integer-argument count per function, indexed by full WASM function index (imports first, then locals). Lets Call marshal the right number of operand-stack values into R0–R3 (issue #195). Empty = pass no args (pre-#195 behaviour).

type_arg_counts: Vec<u32>

AAPCS integer-argument count per function type, indexed by type index. Used by call_indirect (issue #195).

relocatable: bool

Produce relocatable (ET_REL) host-link output. When set, the backend uses the direct instruction selector (select_with_stack) rather than the optimized path: the optimizer materializes an absolute linear- memory base (0x20000100) and does not preserve caller-saved registers across calls, both wrong for a host-linked object where the linmem base is supplied via fp at runtime and callees follow AAPCS. Imports are also emitted as direct func_N BLs (resolved to the wasm field name) instead of __meld_dispatch_import. (#197 — follow-up to #188/#171.)

native_pointer_abi: bool

#237: emit wasm function-static data as a base-independent .data section (__synth_wasm_data) addressed via MOVW/MOVT symbol relocations, so a host-pointer drop-in (linmem base = 0 for native *ptr derefs) doesn’t mis-resolve the statics. Off by default — only the leaves’ base-relative [R11+const] path is used unless explicitly requested.

linear_memory_bytes: u32

#237: wasm linear-memory minimum size in bytes — the full static-data extent (initialized (data) segments plus the zero-init/BSS region). Under native_pointer_abi, a const memory address below this is a wasm static → symbol-relative; any address beyond it is a runtime host pointer → [R11=0 + addr].

Implementations

impl CompileConfig

pub fn effective_safety_bounds(&self) -> SafetyBounds

Resolve the effective safety-bounds setting, honouring the legacy bounds_check field as a fallback. Used by backends to pick the inline-check shape.

Trait Implementations

impl Clone for CompileConfig

fn clone(&self) -> CompileConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CompileConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CompileConfig

fn default() -> Self

Returns the “default value” for a type.