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Support build and target configurations

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These changes add support for build and target configurations in the compiler.
Build and target configurations, combined with the use of #if/#else/#endif allow
for conditional compilation within declaration and statement contexts.

Build configurations can be passed into the compiler via the new '-D' flag, or
set within the LangOptions class. Target configurations are implicit, and
currently only "os" and "arch" are supported.

Swift SVN r14305
This commit is contained in:
Joe Pamer
2014-02-24 18:16:48 +00:00
parent fef36edc6b
commit f83f94d9d8
49 changed files with 933 additions and 38 deletions
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15
test/BuildConfigurations/basicParseErrors.swift Normal file
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// RUN: %swift -parse %s -verify -D FOO -D BAZ
// REQUIRES: X86
#if FOO == BAZ // expected-error{{expected '&&' or '||' expression}}
var x = 0
#endif
#if ^FOO // expected-error{{expected unary '!' expression}}
var y = 0
#endif
#if swift(FOO) // expected-error{{unexpected target configuration expression (expected 'os' or 'arch')}}
var z = 0
#endif