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Jon Meow
bbd4940e6d
This was born out of wanting FunctionDeclaration to explicitly have a Block for a body, and became a bit more of specifying types around. Note this forces exec_program to generate a Block for print()'s body, which is probably more correct as now we can expect a standard FunctionDeclaration AST structure, even for the built-ins. There is a syntactic change here: a continuation's body is now a Block, not just a Statement. I've added an example disallowed test case. I think this is more reasonable syntax. Other than that, note that optional_else now generates a valid Block. This has me thinking about whether we can eliminate Sequence, but that seemed well out of scope for this.
20 lines
789 B
Plaintext
20 lines
789 B
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// RUN: not executable_semantics %s 2>&1 | \
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// RUN: FileCheck --match-full-lines --allow-unused-prefixes=false %s
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// RUN: not executable_semantics --trace %s 2>&1 | \
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// RUN: FileCheck --match-full-lines --allow-unused-prefixes %s
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// AUTOUPDATE: executable_semantics %s
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// CHECK: COMPILATION ERROR: {{.*}}/executable_semantics/testdata/experimental_continuation/fail_continuation_syntax.carbon:16: syntax error, unexpected identifier, expecting LEFT_CURLY_BRACE
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package ExecutableSemanticsTest api;
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fn main() -> i32 {
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var x: i32 = 0;
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__continuation k x = 3;
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__run k;
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return x;
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}
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