5544492d6a
Fixes #152829 --- This patch addresses the issue where the preprocessor could crash when parsing `#embed` parameters containing unmatched closing brackets ```cpp #embed "file" prefix(]) #embed "file" prefix(}) ```
140 lines
5.6 KiB
C
140 lines
5.6 KiB
C
// RUN: %clang_cc1 -std=c23 %s -E -verify
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// Test the parsing behavior for #embed and all of its parameters to ensure we
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// recover from failures gracefully.
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char buffer[] = {
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#embed
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// expected-error@-1 {{expected "FILENAME" or <FILENAME>}}
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#embed <
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// expected-error@-1 {{expected '>'}} \
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expected-note@-1 {{to match this '<'}}
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#embed "
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// expected-error@-1 {{expected "FILENAME" or <FILENAME>}} \
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expected-warning@-1 {{missing terminating '"' character}}
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#embed file.txt
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// expected-error@-1{{expected "FILENAME" or <FILENAME>}}
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#embed "embed_parsing_errors.c" xxx
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// expected-error@-1 {{unknown embed preprocessor parameter 'xxx'}}
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#embed "embed_parsing_errors.c" xxx::
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// expected-error@-1 {{expected identifier}}
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#embed "embed_parsing_errors.c" xxx::xxx
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// expected-error@-1 {{unknown embed preprocessor parameter 'xxx::xxx'}}
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#embed "embed_parsing_errors.c" xxx::42
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// expected-error@-1 {{expected identifier}}
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#embed "embed_parsing_errors.c" limit
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" limit(
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// expected-error@-1 {{expected value in expression}}
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#embed "embed_parsing_errors.c" limit(xxx
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" limit(42
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" limit([
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// expected-error@-1 {{invalid token at start of a preprocessor expression}}
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#embed "embed_parsing_errors.c" limit([)
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// expected-error@-1 {{invalid token at start of a preprocessor expression}}
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#embed "embed_parsing_errors.c" limit(1/0)
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// expected-error@-1 {{division by zero in preprocessor expression}}
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#embed "embed_parsing_errors.c" clang::offset
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" clang::offset(
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// expected-error@-1 {{expected value in expression}}
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#embed "embed_parsing_errors.c" clang::offset(xxx
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" clang::offset(42
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" clang::offset([
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// expected-error@-1 {{invalid token at start of a preprocessor expression}}
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#embed "embed_parsing_errors.c" clang::offset([)
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// expected-error@-1 {{invalid token at start of a preprocessor expression}}
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#embed "embed_parsing_errors.c" clang::offset(1/0)
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// expected-error@-1 {{division by zero in preprocessor expression}}
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#embed "embed_parsing_errors.c" clang::offset 42
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" prefix
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" prefix(
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" prefix(xxx
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" prefix(1/0) // OK: emitted as tokens, not evaluated yet.
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#embed "embed_parsing_errors.c" prefix(([{}])) // OK: delimiters balanced
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#embed "embed_parsing_errors.c" prefix(([{)]})
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// expected-error@-1 {{expected '}'}} expected-note@-1 {{to match this '{'}}
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#embed "embed_parsing_errors.c" prefix(([{})})
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// expected-error@-1 {{expected ']'}} expected-note@-1 {{to match this '['}}
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#embed "embed_parsing_errors.c" prefix(([{}]})
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// expected-error@-1 {{expected ')'}} expected-note@-1 {{to match this '('}}
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#embed "embed_parsing_errors.c" prefix() // OK: tokens within parens are optional
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#embed "embed_parsing_errors.c" prefix)
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" prefix()) // expected-error {{expected identifier}}
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#embed "embed_parsing_errors.c" prefix(]) // expected-error {{expected ')'}}
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#embed "embed_parsing_errors.c" prefix(}) // expected-error {{expected ')'}}
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#embed "embed_parsing_errors.c" suffix
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" suffix(
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" suffix(xxx
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// expected-error@-1 {{expected ')'}}
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#embed "embed_parsing_errors.c" suffix(1/0) // OK: emitted as tokens, not evaluated yet.
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#embed "embed_parsing_errors.c" suffix(([{}])) // OK: delimiters balanced
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#embed "embed_parsing_errors.c" suffix(([{)]})
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// expected-error@-1 {{expected '}'}} expected-note@-1 {{to match this '{'}}
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#embed "embed_parsing_errors.c" suffix(([{})})
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// expected-error@-1 {{expected ']'}} expected-note@-1 {{to match this '['}}
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#embed "embed_parsing_errors.c" suffix(([{}]})
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// expected-error@-1 {{expected ')'}} expected-note@-1 {{to match this '('}}
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#embed "embed_parsing_errors.c" suffix() // OK: tokens within parens are optional
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#embed "embed_parsing_errors.c" suffix)
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// expected-error@-1 {{expected '('}}
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#embed "embed_parsing_errors.c" suffix()) // expected-error {{expected identifier}}
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#embed "embed_parsing_errors.c" suffix(]) // expected-error {{expected ')'}}
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#embed "embed_parsing_errors.c" suffix(}) // expected-error {{expected ')'}}
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#embed "embed_parsing_errors.c" if_empty(1/0) // OK: emitted as tokens, not evaluated yet.
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#embed "embed_parsing_errors.c" if_empty(([{}])) // OK: delimiters balanced
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#embed "embed_parsing_errors.c" if_empty(([{)]})
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// expected-error@-1 {{expected '}'}} expected-note@-1 {{to match this '{'}}
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#embed "embed_parsing_errors.c" if_empty(([{})})
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// expected-error@-1 {{expected ']'}} expected-note@-1 {{to match this '['}}
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#embed "embed_parsing_errors.c" if_empty(([{}]})
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// expected-error@-1 {{expected ')'}} expected-note@-1 {{to match this '('}}
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#embed "embed_parsing_errors.c" if_empty() // OK: tokens within parens are optional
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#embed "embed_parsing_errors.c" if_empty)
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// expected-error@-1 {{expected '('}}
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};
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#embed "embed_parsing_errors.c" if_empty()) // expected-error {{expected identifier}}
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#embed "embed_parsing_errors.c" if_empty(]) // expected-error {{expected ')'}}
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#embed "embed_parsing_errors.c" if_empty(}) // expected-error {{expected ')'}}
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