Struct ExpandResult 

pub struct ExpandResult {
    pub code: String,
    pub types: Option<String>,
    pub metadata: Option<String>,
    pub diagnostics: Vec<MacroDiagnostic>,
    pub source_mapping: Option<SourceMappingResult>,
}

Result of expanding macros in TypeScript source code.

This is the primary return type for macro expansion operations, containing the expanded code, diagnostics, and source mapping.

Example

use macroforge_ts::{ExpandResult, MacroDiagnostic};

// Create an ExpandResult programmatically
let result = ExpandResult {
    code: "class User {}".to_string(),
    types: None,
    metadata: None,
    diagnostics: vec![],
    source_mapping: None,
};

// Check for errors
if result.diagnostics.iter().any(|d| d.level == "error") {
    // Handle errors
}

Fields

code: String

The expanded TypeScript code with all macros processed.

types: Option<String>

Optional TypeScript type declarations for generated methods.

metadata: Option<String>

Optional JSON metadata about processed classes.

diagnostics: Vec<MacroDiagnostic>

Diagnostics (errors, warnings, info) from the expansion process.

source_mapping: Option<SourceMappingResult>

Source mapping for position translation between original and expanded code.

Implementations

impl ExpandResult

pub fn unchanged(code: &str) -> Self

Creates a no-op result with the original code unchanged.

Used for early bailout when no macros need processing, avoiding unnecessary parsing and expansion overhead.

Arguments

• code - The original source code to return unchanged

Returns

An ExpandResult with:

• code set to the input
• All other fields empty/None
• No source mapping (identity mapping implied)

Trait Implementations

impl Clone for ExpandResult

fn clone(&self) -> ExpandResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl FromNapiValue for ExpandResult

unsafe fn from_napi_value( env: napi_env, napi_val: napi_value, ) -> Result<ExpandResult>

Safety

fn from_unknown(value: Unknown<'_>) -> Result<Self, Error>

impl ToNapiValue for ExpandResult

unsafe fn to_napi_value(env: napi_env, val: ExpandResult) -> Result<napi_value>

Safety

fn into_unknown(self, env: &Env) -> Result<Unknown<'_>, Error>

impl TypeName for ExpandResult

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for ExpandResult

unsafe fn validate( env: *mut napi_env__, napi_val: *mut napi_value__, ) -> Result<*mut napi_value__, Error>

Safety