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fn() — svelte Function Reference

Architecture documentation for the fn() function in boundary.js from the svelte codebase.

Function javascript ClientRuntime Hydration calls 4 called by 5

Entity Profile

Dependency Diagram

graph TD
  db550759_ee3b_160c_8afa_d1aa9fae478c["fn()"]
  928abd29_a193_3303_bc6d_b7d6ce0b17ec["Boundary"]
  db550759_ee3b_160c_8afa_d1aa9fae478c -->|defined in| 928abd29_a193_3303_bc6d_b7d6ce0b17ec
  4de7f5ce_83b2_1bef_8e42_34d4dcb4c29f["async()"]
  4de7f5ce_83b2_1bef_8e42_34d4dcb4c29f -->|calls| db550759_ee3b_160c_8afa_d1aa9fae478c
  b9aaaccb_7510_28de_bb53_f808b2cb1d5e["flatten()"]
  b9aaaccb_7510_28de_bb53_f808b2cb1d5e -->|calls| db550759_ee3b_160c_8afa_d1aa9fae478c
  9a4a3f08_7a6a_f871_c243_a35a6690f3f7["run()"]
  9a4a3f08_7a6a_f871_c243_a35a6690f3f7 -->|calls| db550759_ee3b_160c_8afa_d1aa9fae478c
  a387a36f_f417_a149_0b1a_ee4a1da63440["async_derived()"]
  a387a36f_f417_a149_0b1a_ee4a1da63440 -->|calls| db550759_ee3b_160c_8afa_d1aa9fae478c
  06f2307f_37db_1e25_c26b_19978071ccc7["unmount()"]
  06f2307f_37db_1e25_c26b_19978071ccc7 -->|calls| db550759_ee3b_160c_8afa_d1aa9fae478c
  55623862_10b7_5361_e30b_34ec6941f1a7["set_active_effect()"]
  db550759_ee3b_160c_8afa_d1aa9fae478c -->|calls| 55623862_10b7_5361_e30b_34ec6941f1a7
  311ef9f4_9b68_c178_c1db_3b8696f7d964["set_active_reaction()"]
  db550759_ee3b_160c_8afa_d1aa9fae478c -->|calls| 311ef9f4_9b68_c178_c1db_3b8696f7d964
  7a5dcc8e_a227_a041_3278_04368ddf1422["set_component_context()"]
  db550759_ee3b_160c_8afa_d1aa9fae478c -->|calls| 7a5dcc8e_a227_a041_3278_04368ddf1422
  6c1ccbf4_9a62_285e_f0c7_95d2b223818c["handle_error()"]
  db550759_ee3b_160c_8afa_d1aa9fae478c -->|calls| 6c1ccbf4_9a62_285e_f0c7_95d2b223818c
  style db550759_ee3b_160c_8afa_d1aa9fae478c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/internal/client/dom/blocks/boundary.js lines 267–286

	#run(fn) {
		var previous_effect = active_effect;
		var previous_reaction = active_reaction;
		var previous_ctx = component_context;

		set_active_effect(this.#effect);
		set_active_reaction(this.#effect);
		set_component_context(this.#effect.ctx);

		try {
			return fn();
		} catch (e) {
			handle_error(e);
			return null;
		} finally {
			set_active_effect(previous_effect);
			set_active_reaction(previous_reaction);
			set_component_context(previous_ctx);
		}
	}

Domain

Subdomains

Defined In

Calls

Called By

Source

Frequently Asked Questions

What does fn() do?
fn() is a function in the svelte codebase, defined in packages/svelte/src/internal/client/dom/blocks/boundary.js.
Where is fn() defined?
fn() is defined in packages/svelte/src/internal/client/dom/blocks/boundary.js at line 267.
What does fn() call?
fn() calls 4 function(s): handle_error, set_active_effect, set_active_reaction, set_component_context.
What calls fn()?
fn() is called by 5 function(s): async, async_derived, flatten, run, unmount.

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