yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Tim FoleyImprove behavior when undefined identifier is a contextual keyword (#1200)b42b865ac

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1// keyword-undeclared-identifier.slang
2
3//DIAGNOSTIC_TEST:SIMPLE:
4
5// Test that using a contextual keyword in
6// a context where it is an underfined
7// identifier produces a reasonable error
8// message instead of an internal compiler error
9//
10// Note that HLSL has keywords with very
11// common names like `triangle` and `sample`,
12// so it is easy for those to collide with
13// local variable names.
14//
15// Slang decides to make almost all keywords
16// contextual, so that they are looked up
17// in lexical scope and can be shadowed by
18// user-defined variables or functions.
19//
20// The problem in this case is that code
21// could easily be refactored so that it
22// uses one of the contextual keywrods in
23// a place where it is no longer shadowed,
24// but contextually needs to be treated
25// as an expression.
26
27int instanceTest()
28{
29	return instance;
30}
31
32int triangleTest()
33{
34	return triangle;
35}