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* Simplify @-patterns: only {attrs}@name' or name@{attrs}' are now

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allowed.  So `name1@name2', `{attrs1}@{attrs2}' and so on are now no
  longer legal.  This is no big loss because they were not useful
  anyway.

  This also changes the output of builtins.toXML for @-patterns
  slightly.
This commit is contained in:
Eelco Dolstra 2010-03-25 12:19:41 +00:00
parent 7482349fe8
commit 8a10360c91
13 changed files with 83 additions and 173 deletions
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4
src/libexpr/nixexpr-ast.def
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@ -77,8 +77,7 @@ Inherit | Expr ATermList Pos | ATerm |
Scope | | Expr |
VarPat | string | Pattern |
AttrsPat | ATermList ATermBool | Pattern | # bool = `...'
AtPat | Pattern Pattern | Pattern |
AttrsPat | ATermList ATermBool string | Pattern | # bool = `...'
Formal | string DefaultValue | ATerm |
@ -95,3 +94,4 @@ AttrRHS | Expr Pos | ATerm |
eTrue = makeBool(makeTrue())
eFalse = makeBool(makeFalse())
sOverrides = toATerm("__overrides")
sNoAlias = toATerm("")