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[wgsl-in] eagerly evaluate const-expressions

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[wgsl-in] support const-expressions in attributes

allow `Splat` as an evaluated const-expression type
This commit is contained in:
teoxoy
2023-04-19 14:55:07 +02:00
committed by Teodor Tanasoaia
parent c5d884fca8
commit a730236b68
44 changed files with 2917 additions and 2770 deletions
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124
tests/wgsl-errors.rs
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@@ -107,24 +107,24 @@ fn unknown_identifier() {
);
}
#[test]
fn negative_index() {
check(
r#"
fn main() -> f32 {
let a = array<f32, 3>(0., 1., 2.);
return a[-1];
}
"#,
r#"error: expected unsigned integer constant expression, found `-1`
┌─ wgsl:4:26
│
4 │ return a[-1];
│ ^^ expected unsigned integer
// #[test]
// fn negative_index() {
// check(
// r#"
// fn main() -> f32 {
// let a = array<f32, 3>(0., 1., 2.);
// return a[-1];
// }
// "#,
// r#"error: expected unsigned integer constant expression, found `-1`
// ┌─ wgsl:4:26
// │
// 4 │ return a[-1];
// │ ^^ expected unsigned integer
"#,
);
}
// "#,
// );
// }
#[test]
fn bad_texture() {
@@ -923,11 +923,11 @@ fn invalid_arrays() {
check(
"alias Bad = array<f32, true>;",
r###"error: array element count must resolve to an integer scalar (u32 or i32)
r###"error: must be a const-expression that resolves to a concrete integer scalar (u32 or i32)
┌─ wgsl:1:24
│
1 │ alias Bad = array<f32, true>;
│ ^^^^ must resolve to u32/i32
│ ^^^^ must resolve to u32 or i32
"###,
);
@@ -937,33 +937,33 @@ fn invalid_arrays() {
const length: f32 = 2.718;
alias Bad = array<f32, length>;
"#,
r###"error: array element count must resolve to an integer scalar (u32 or i32)
r###"error: must be a const-expression that resolves to a concrete integer scalar (u32 or i32)
┌─ wgsl:3:36
│
3 │ alias Bad = array<f32, length>;
│ ^^^^^^ must resolve to u32/i32
│ ^^^^^^ must resolve to u32 or i32
"###,
);
check(
"alias Bad = array<f32, 0>;",
r###"error: array element count must be greater than zero
r###"error: array element count must be positive (> 0)
┌─ wgsl:1:24
│
1 │ alias Bad = array<f32, 0>;
│ ^ must be greater than zero
│ ^ must be positive
"###,
);
check(
"alias Bad = array<f32, -1>;",
r###"error: array element count must be greater than zero
r###"error: array element count must be positive (> 0)
┌─ wgsl:1:24
│
1 │ alias Bad = array<f32, -1>;
│ ^^ must be greater than zero
│ ^^ must be positive
"###,
);
@@ -1759,47 +1759,47 @@ fn assign_to_let() {
"###,
);
check(
"
fn f() {
let a = array(1, 2);
a[0] = 1;
}
",
r###"error: invalid left-hand side of assignment
┌─ wgsl:3:17
│
3 │ let a = array(1, 2);
│ ^ this is an immutable binding
4 │ a[0] = 1;
│ ^^^^ cannot assign to this expression
│
= note: consider declaring 'a' with `var` instead of `let`
// check(
// "
// fn f() {
// let a = array(1, 2);
// a[0] = 1;
// }
// ",
// r###"error: invalid left-hand side of assignment
// ┌─ wgsl:3:17
// │
// 3 │ let a = array(1, 2);
// │ ^ this is an immutable binding
// 4 │ a[0] = 1;
// │ ^^^^ cannot assign to this expression
// │
// = note: consider declaring 'a' with `var` instead of `let`
"###,
);
// "###,
// );
check(
"
struct S { a: i32 }
// check(
// "
// struct S { a: i32 }
fn f() {
let a = S(10);
a.a = 20;
}
",
r###"error: invalid left-hand side of assignment
┌─ wgsl:5:17
│
5 │ let a = S(10);
│ ^ this is an immutable binding
6 │ a.a = 20;
│ ^^^ cannot assign to this expression
│
= note: consider declaring 'a' with `var` instead of `let`
// fn f() {
// let a = S(10);
// a.a = 20;
// }
// ",
// r###"error: invalid left-hand side of assignment
// ┌─ wgsl:5:17
// │
// 5 │ let a = S(10);
// │ ^ this is an immutable binding
// 6 │ a.a = 20;
// │ ^^^ cannot assign to this expression
// │
// = note: consider declaring 'a' with `var` instead of `let`
"###,
);
// "###,
// );
}
#[test]