component-model

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Consider allowing caller-supplied buffer optimization for return values

1

Based on discussions in [wasi-http/#8](https://github.com/WebAssembly/wasi-http/issues/8), we should consider a return-value optimization that avoids calling `realloc` by instead allowing the core wasm caller to supply a (buffer, length) `i32` pair as...

lukewagner

Tuples and unions have invalid names, but are the restrictions on names really justified?

15

Per the explainer, `word`s can only contain the ASCII letters and numbers, and must start with a letter. Also per the explainer, tuples map to records whose field names are...

hatzka-nezumi

Why does convert_int_to_bool convert?

1

The [Canonical ABI says](https://github.com/WebAssembly/component-model/blob/main/design/mvp/CanonicalABI.md#loading) > Integer-to-boolean conversions treats 0 as false and all other bit-patterns as true Why does it work this way, instead of doing `trap_if(i >= 2)` similar...

sunfishcode

WIT.md grammatical production for `resource-item` not defined

1

No production rule or definition exists for the `resource-item` term.

esoterra

Only require "real" imports during validation of component instantiation

1

Currently I believe the intention for validation of instantiating a component within a component is along the lines of "iterate over all the imports and make sure something is supplied...

alexcrichton

Consider adding second initialization phase after `start`

9

This issue captures the motivation, summary and sketch of an idea for improving how snapshots work in the component model. ## Motivation There are a number of scenarios where we'd...

lukewagner

`.wit`: default implementations

1

I'm proposing an addition to the current syntax to support default implementations for functions. Sometimes a function isn't required to be implemented and its return could be substituted for a...

ok-nick

null termination for strings

2

Strings in the component model are represented as pointers with a length and are allocated into component memory via the cabi_realloc function provided by the component. When interfacing with APIs...

guybedford

WIT - inline definitions

6

Not pressing by any means, more nice-to-have, but thought I'd post while I'm thinking about it. Just like one can define an inline tuple or result, it could be useful...

guybedford

Numeric separators in kebab names

3

Came up in considering options for representing enums like: ``` enum tls-version { tls1, tls1-1, tls1-2, tls1-3 } ``` where it would be useful to be able to write an...

guybedford