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Allow async in nosuspend scope

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Starting an async function call is actually a synchronous operation,
since the caller is not awaiting on the callee for a return value.

This commit removes the compiler code which generates the error and
updates the relevant test case.

In the presence of CallModifierAsync, the callee is expected to
suspend, so it should not be changed to CallModifierNoSuspend.
This commit is contained in:
Mathieu Guay-Paquet 2021-02-16 23:43:36 -05:00
parent c0cfbe98f3
commit 93f8110e5d
2 changed files with 1 additions and 7 deletions
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7
src/stage1/ir.cpp
View file

@ -7607,12 +7607,7 @@ static IrInstSrc *ir_gen_fn_call(IrBuilderSrc *irb, Scope *scope, AstNode *node,
bool is_nosuspend = get_scope_nosuspend(scope) != nullptr; bool is_nosuspend = get_scope_nosuspend(scope) != nullptr;
CallModifier modifier = node->data.fn_call_expr.modifier; CallModifier modifier = node->data.fn_call_expr.modifier;
if (is_nosuspend) { if (is_nosuspend && modifier != CallModifierAsync) {
if (modifier == CallModifierAsync) {
add_node_error(irb->codegen, node,
buf_sprintf("async call in nosuspend scope"));
return irb->codegen->invalid_inst_src;
}
modifier = CallModifierNoSuspend; modifier = CallModifierNoSuspend;
} }

1
test/compile_errors.zig
View file

@ -1027,7 +1027,6 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
\\} \\}
\\fn foo() void {} \\fn foo() void {}
, &[_][]const u8{ , &[_][]const u8{
"tmp.zig:3:21: error: async call in nosuspend scope",
"tmp.zig:4:9: error: suspend in nosuspend scope", "tmp.zig:4:9: error: suspend in nosuspend scope",
}); });