SD0043

Example

"use typeshade"

class Uniforms {
  x: f64
}

declare const u: uniform<Uniforms>

function df64_add(a: f32, b: f32): f32 {
  return a + b
}

@fragment
export function main(@location(0) uv: vec2): vec4 {
  return vec4(uv, df64_add(f32(u.x * u.x), 0.), 1.)
}

Compiled at build time against the pinned compiler, this program gets:

How to fix it

The registry's hint: fp64Lower injects df64_* emulation fns and DF64VecN structs under those names — rename the colliding declaration

The same program, corrected. It compiles with no diagnostic.

"use typeshade"

class Uniforms {
  x: f64
}

declare const u: uniform<Uniforms>

function addNarrow(a: f32, b: f32): f32 {
  return a + b
}

@fragment
export function main(@location(0) uv: vec2): vec4 {
  return vec4(uv, addNarrow(f32(u.x * u.x), 0.), 1.)
}

See also

TS8015 BACKEND

A backend that refused to emit a module the front end accepted. The message is the backend's own.

• Emulated double
• TypeShadeError
• Error codes

Source

Where the compiler raises this code at commit 26de7be8, one line per file:

• src/core/passes/fp64-lower.ts:1552 (2 sites)