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e5b1f4a251
__counted_by (and __sized_by) expressions can have arbitrary C syntax
in them, such as:
void foo(int * __counted_by(*len) p, int *len);
When @_SwififyImport tries to generate Swift code for this, the
expression `*len` leads to a syntax error, since it isn't valid Swift.
This patch adds a check to ensure we only attach the Swiftify macro to
__counted_by expressions that are also syntactically valid in Swift.
rdar://150956352
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
#pragma once
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#define __counted_by(x) __attribute__((__counted_by__(x)))
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void simple(int len, int * __counted_by(len) p);
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void simpleFlipped(int * __counted_by(len) p, int len);
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void swiftAttr(int len, int *p) __attribute__((
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swift_attr("@_SwiftifyImport(.countedBy(pointer: .param(2), count: \"len\"))")));
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void shared(int len, int * __counted_by(len) p1, int * __counted_by(len) p2);
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void complexExpr(int len, int offset, int * __counted_by(len - offset) p);
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void nullUnspecified(int len, int * __counted_by(len) _Null_unspecified p);
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void nonnull(int len, int * __counted_by(len) _Nonnull p);
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void nullable(int len, int * __counted_by(len) _Nullable p);
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int * __counted_by(len) returnPointer(int len);
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void offByOne(int len, int * __counted_by(len + 1) p);
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void offBySome(int len, int offset, int * __counted_by(len + (1 + offset)) p);
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void scalar(int m, int n, int * __counted_by(m * n) p);
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void bitwise(int m, int n, int o, int * __counted_by(m & n | ~o) p);
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void bitshift(int m, int n, int o, int * __counted_by(m << (n >> o)) p);
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void constInt(int * __counted_by(42 * 10) p);
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void constFloatCastedToInt(int * __counted_by((int) (4.2 / 12)) p);
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void sizeofType(int * __counted_by(sizeof(int *)) p);
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void sizeofParam(int * __counted_by(sizeof(p)) p);
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void derefLen(int * len, int * __counted_by(*len) p);
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void lNot(int len, int * __counted_by(!len) p);
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void lAnd(int len, int * __counted_by(len && len) p);
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void lOr(int len, int * __counted_by(len || len) p);
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void floatCastToInt(float meters, int * __counted_by((int) meters) p);
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void pointerCastToInt(int *square, int * __counted_by((int) square) p);
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void nanAsInt(int * __counted_by((int) (0 / 0)) p);
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