Rule 1.2

Chapter 1, Introduction Code only

GLSL ES 3.00 is a target of the compiler; it must not be the definition of a construct.

The rule text and the parts under it are the compiler's own English, as the design document writes them.

Rationale

a construct GLSL ES 3.00 lacks is still a construct of the language; the GLSL writer either lowers it or fails closed (§10).

the roadmap’s second rule, “make what does not compile, compile”, and AGENTS.md.

Only the implementation carries it; no test checks it yet. The file below names the rule in an Implements: tag.

Where the rule says the compiler enforces it:

src/core/passes/required-caps.ts (assertCaps), which fails a GLSL emit closed on a capability the writer has no row for.

The files that verify it at commit 26de7be8, each at the first line that names the rule:

The rule at commit 26de7be8: