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ObjectLiteralBuilder

Struct ObjectLiteralBuilder 

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pub struct ObjectLiteralBuilder<'a> { /* private fields */ }
Expand description

Builder for constructing object literal types.

This is a solver component that handles the pure type construction aspects of object literals, separate from AST traversal and error reporting.

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impl<'a> ObjectLiteralBuilder<'a>

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pub fn new(db: &'a dyn TypeDatabase) -> Self

Create a new object literal builder.

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pub fn build_object_type(&self, properties: Vec<PropertyInfo>) -> TypeId

Build object type from properties.

This creates a fresh object type with the given properties. The properties are sorted by name for consistent hashing.

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pub fn build_object_with_index( &self, properties: Vec<PropertyInfo>, string_index: Option<IndexSignature>, number_index: Option<IndexSignature>, ) -> TypeId

Build object type with index signature.

Creates an object type with both properties and optional string/number index signatures.

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pub fn merge_spread( &self, base_properties: Vec<PropertyInfo>, spread_type: TypeId, ) -> Vec<PropertyInfo>

Merge spread properties into base properties.

Given a base set of properties and a spread type, extracts all properties from the spread type and merges them into the base (later properties override).

Example:

const base = { x: 1 };
const spread = { y: 2, x: 3 };
// Result: { x: 3, y: 2 }
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pub fn apply_contextual_types( &self, properties: Vec<PropertyInfo>, contextual: TypeId, ) -> Vec<PropertyInfo>

Apply contextual typing to property types.

When an object literal has a contextual type, each property value should be narrowed by the corresponding property type from the context.

Example:

type Point = { x: number; y: number };
const p: Point = { x: 1, y: '2' };  // Error: '2' is not assignable to number
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pub fn collect_spread_properties( &self, spread_type: TypeId, ) -> Vec<PropertyInfo>

Collect all properties for object spread and spread-mutation paths.

This is the solver-side public entrypoint used by query APIs for object spread property extraction, including CheckerState::get_type_of_object_literal.

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