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Remove reference to tags, replace enums.

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Joe Pletcher 2012-01-25 00:51:16 -08:00 • committed by Marijn Haverbeke
parent 61b5cc95d1
commit 3b9a9fce49
1 changed files with 2 additions and 2 deletions
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@ -1346,7 +1346,7 @@ destructors. Resources might go away in the future.
Rust datatypes are not trivial to copy (the way, for example, Rust datatypes are not trivial to copy (the way, for example,
JavaScript values can be copied by simply taking one or two machine JavaScript values can be copied by simply taking one or two machine
words and plunking them somewhere else). Shared boxes require words and plunking them somewhere else). Shared boxes require
reference count updates, big records, tags, or unique pointers require reference count updates, big records, enums, or unique pointers require
an arbitrary amount of data to be copied (plus updating the reference an arbitrary amount of data to be copied (plus updating the reference
counts of shared boxes hanging off them). counts of shared boxes hanging off them).
@ -1459,7 +1459,7 @@ alt my_rec {
The fact that arguments are conceptually passed by safe reference does The fact that arguments are conceptually passed by safe reference does
not mean all arguments are passed by pointer. Composite types like not mean all arguments are passed by pointer. Composite types like
records and tags *are* passed by pointer, but single-word values, like records and enums *are* passed by pointer, but single-word values, like
integers and pointers, are simply passed by value. Most of the time, integers and pointers, are simply passed by value. Most of the time,
the programmer does not have to worry about this, as the compiler will the programmer does not have to worry about this, as the compiler will
simply pick the most efficient passing style. There is one exception, simply pick the most efficient passing style. There is one exception,