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fix(unplugin-typegpu): Add tests for 'use gpu' marked object method #1894

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fix(unplugin-typegpu): Add tests for 'use gpu' marked object method #1894

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93a3430
add tests for object method function
cieplypolar Nov 6, 2025
ce4b084
Merge branch 'main' into fix/test-obj-method
cieplypolar Nov 21, 2025
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123 changes: 123 additions & 0 deletions packages/unplugin-typegpu/test/use-gpu-directive.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -181,6 +181,70 @@ describe('[BABEL] "use gpu" directive', () => {
`);
});

it('makes plugin transpile marked object method', () => {
const code = `\
const obj = {
mod: (a: number, b: number): number => {
'use gpu';
return a % b;
}
}

const isPrime = (n: number): boolean => {
'use gpu';
if (n <= 1) {
return false;
}

for (let i = 2; i < n; i++) {
if (obj.mod(n, i) === 0) {
return false;
}
}
return true;
}
`;

expect(babelTransform(code)).toMatchInlineSnapshot(`
"const obj = {
mod: ($ => (globalThis.__TYPEGPU_META__ ??= new WeakMap()).set($.f = (a: number, b: number): number => {
'use gpu';

return a % b;
}, {
v: 1,
name: void 0,
ast: {"params":[{"type":"i","name":"a"},{"type":"i","name":"b"}],"body":[0,[[10,[1,"a","%","b"]]]],"externalNames":[]},
get externals() {
return {};
}
}) && $.f)({})
};
const isPrime = ($ => (globalThis.__TYPEGPU_META__ ??= new WeakMap()).set($.f = (n: number): boolean => {
'use gpu';

if (n <= 1) {
return false;
}
for (let i = 2; i < n; i++) {
if (obj.mod(n, i) === 0) {
return false;
}
}
return true;
}, {
v: 1,
name: "isPrime",
ast: {"params":[{"type":"i","name":"n"}],"body":[0,[[11,[1,"n","<=",[5,"1"]],[0,[[10,false]]]],[14,[12,"i",[5,"2"]],[1,"i","<","n"],[102,"++","i"],[0,[[11,[1,[6,[7,"obj","mod"],["n","i"]],"==",[5,"0"]],[0,[[10,false]]]]]]],[10,true]]],"externalNames":["obj"]},
get externals() {
return {
obj
};
}
}) && $.f)({});"
`);
});

it('parses when no typegpu import', () => {
const code = `\
function add(a, b) {
Expand Down Expand Up @@ -430,6 +494,65 @@ describe('[ROLLUP] "use gpu" directive', () => {
`);
});

it('makes plugin transpile marked object method', async () => {
const code = `\
const obj = {
mod: (a, b) => {
'use gpu';
return a % b;
}
}

const isPrime = (n) => {
'use gpu';
if (n <= 1) {
return false;
}

for (let i = 2; i < n; i++) {
if (obj.mod(n, i) === 0) {
return false;
}
}
return true;
}
`;

expect(await rollupTransform(code)).toMatchInlineSnapshot(`
"const obj = {
mod: (($ => (globalThis.__TYPEGPU_META__ ??= new WeakMap()).set($.f = ((a, b) => {
'use gpu';
return a % b;
}), {
v: 1,
name: undefined,
ast: {"params":[{"type":"i","name":"a"},{"type":"i","name":"b"}],"body":[0,[[10,[1,"a","%","b"]]]],"externalNames":[]},
get externals() { return {}; },
}) && $.f)({}))
};

(($ => (globalThis.__TYPEGPU_META__ ??= new WeakMap()).set($.f = ((n) => {
'use gpu';
if (n <= 1) {
return false;
}

for (let i = 2; i < n; i++) {
if (obj.mod(n, i) === 0) {
return false;
}
}
return true;
}), {
v: 1,
name: "isPrime",
ast: {"params":[{"type":"i","name":"n"}],"body":[0,[[11,[1,"n","<=",[5,"1"]],[0,[[10,false]]]],[14,[12,"i",[5,"2"]],[1,"i","<","n"],[102,"++","i"],[0,[[11,[1,[6,[7,"obj","mod"],["n","i"]],"==",[5,"0"]],[0,[[10,false]]]]]]],[10,true]]],"externalNames":["obj"]},
get externals() { return {obj}; },
}) && $.f)({}));
"
`);
});

it('throws when hoisting was meant to be used', async () => {
const code = `\
const sum = add(1, 2);
Expand Down