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Implement -edition=YYYY semantics #22248

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Merged
thewilsonator merged 2 commits into from
Dec 19, 2025
+13 −1
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Implement -edition=YYYY semantics #22248

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ae6a91c
Implement `-edition=YYYY` semantics
ntrel Dec 17, 2025
91209fa
`-edition` cannot override ModuleDeclaration edition
ntrel Dec 18, 2025
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2 changes: 1 addition & 1 deletion compiler/src/dmd/dmodule.d
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Original file line number Diff line number Diff line change
Expand Up @@ -437,7 +437,7 @@ extern (C++) final class Module : Package
if (doHdrGen)
hdrfile = setOutfilename(global.params.dihdr.name, global.params.dihdr.dir, arg, hdr_ext);

this.edition = Edition.min;
this.edition = global.params.edition;
}

extern (D) this(const(char)[] filename, Identifier ident, int doDocComment, int doHdrGen)
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2 changes: 2 additions & 0 deletions compiler/src/dmd/mars.d
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Expand Up @@ -908,6 +908,8 @@ bool parseCommandLine(const ref Strings arguments, const size_t argc, out Param
auto filename = p + 1+7+1+4;
files.push(filename);
params.editionFiles[filename] = params.edition;
// FIXME: params.edition should not be set when there's a filename
error("`-edition` is not supported with a filename yet");
}
}
else if (arg == "-fIBT")
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10 changes: 10 additions & 0 deletions compiler/test/fail_compilation/edition_switch.d
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@@ -0,0 +1,10 @@
/*
REQUIRED_ARGS: -edition=2024
TEST_OUTPUT:
---
fail_compilation/edition_switch.d(10): Error: usage of identifer `body` as a keyword is obsolete. Use `do` instead.
---
*/

void test()
in { } body { }
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