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Infer coroutine effects automatically

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This commit is contained in:
pavel 2026-08-27 21:53:34 +02:00
commit 5b30e49486
15 changed files with 339 additions and 103 deletions
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7
internal/lang/parser.go
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@ -138,7 +138,7 @@ func (p *parser) parseProgram() (*Program, error) {
default:
return nil, fmt.Errorf("unsupported annotation %q", annotation.lexeme)
}
case p.check(tokenFun) || p.check(tokenSuspend):
case p.check(tokenFun):
fn, err := p.parseFunction()
if err != nil {
return nil, err
@ -325,7 +325,7 @@ func (p *parser) parseClass() (ClassDecl, error) {
var methods []FunctionDecl
for !p.check(tokenRBrace) && !p.check(tokenEOF) {
p.match(tokenOverride)
if !p.check(tokenFun) && !p.check(tokenSuspend) {
if !p.check(tokenFun) {
tok := p.peek()
return ClassDecl{}, fmt.Errorf("expected class member at %d, found %q", tok.pos, tok.lexeme)
}
@ -482,12 +482,10 @@ func (p *parser) parseFunction() (FunctionDecl, error) {
Params: signature.Params,
ReturnType: signature.ReturnType,
Body: body,
Suspend: signature.Suspend,
}, nil
}
func (p *parser) parseFunctionSignature() (FunctionSignature, error) {
suspend := p.match(tokenSuspend)
if _, err := p.expect(tokenFun, "expected 'fun'"); err != nil {
return FunctionSignature{}, err
}
@ -524,7 +522,6 @@ func (p *parser) parseFunctionSignature() (FunctionSignature, error) {
TypeParams: typeParams,
Params: params,
ReturnType: returnType,
Suspend: suspend,
}, nil
}