`IfChain`

Class in Authoring

The chain object Builder.if and If(/api/if/) return, so .elif(...) and .else(...) read top to bottom in authored order.

import { IfChain } from 'typeshade'

The signature, the description and the examples come from the compiler's own source at commit 26de7be8.

Syntax

class IfChain

Description

The chain object Builder.if and If return, so .elif(...) and .else(...) read top to bottom in authored order. It is reached only through the call that starts a chain. Its methods extend the same if statement in place, pushed once on the first arm, so a chain without a trailing .else still emits a valid if / else if with no else block.

Examples

Example

If(p.idx.eq(1), () => {
  pos.assign(vec2(3, -1))
}).elif(p.idx.eq(2), () => {
  pos.assign(vec2(-1, 3))
})

Constructor

new IfChain(private readonly parent: Builder, private readonly arms: Array<{ cond: Expr; body: Stmt[] }>, private readonly setElse: (body: Stmt[]) => void)

Instance methods

elif (cond: ReadonlyNode<'bool'>, body: (b: Builder) => ReadonlyNode | void): IfChain: Add an else if (cond) { body } arm. Returns the chain. A body that returns a value is rejected with SD0115, as for Builder.if.
else (body: (b: Builder) => ReadonlyNode | void): void: Add the else { body } block and end the chain. A body that returns a value is rejected with SD0115, as for Builder.if.

Source

src/core/ir/builder.ts, line 388, at commit 26de7be8

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IfChain