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https://github.com/apple/swift.git
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Artem Chikin
0bbd35242c
This change adds an experimental feature 'LiteralExpressions` which allows for use of simple binary expressions of integer type composed of literal value operands. For now, such literal expressions are only supported in initializers of '@section` values.
54 lines
2.5 KiB
Swift
54 lines
2.5 KiB
Swift
// Constant globals using @section initialized with literal expressions with simple variable references
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// REQUIRES: swift_feature_LiteralExpressions
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// RUN: %empty-directory(%t/deps)
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// RUN: split-file %s %t
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// RUN: %target-swift-frontend -typecheck -dump-ast %t/client.swift -I %t/deps -enable-experimental-feature LiteralExpressions -verify | %FileCheck %s
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//--- deps/foo.h
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#define MACRO_INT 42
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const int const_int = 42;
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static const int static_const_int = 42;
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static const char static_const_char = 42;
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static const char static_const_char_with_long_literal = 42ull;
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static const long static_const_long = 42;
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static const char static_const_char_referencing_other_const = 1 + static_const_char;
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static const float static_const_float = 42.0;
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static const double static_const_double = 42.0;
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static const char *static_const_pointer = 0;
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//--- deps/module.modulemap
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module Foo {
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header "foo.h"
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export *
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}
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//--- client.swift
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import Foo
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@section("mysection") let clangConstantOp1 = 1 + MACRO_INT
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// CHECK-LABEL: (pattern_named type="Int32" "clangConstantOp1")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int32" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="43"
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@section("mysection") let clangConstantOp2 = 2 + const_int
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// CHECK-LABEL: (pattern_named type="Int32" "clangConstantOp2")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int32" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="44"
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@section("mysection") let clangConstantOp4 = 4 + static_const_int
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// CHECK-LABEL: (pattern_named type="Int32" "clangConstantOp4")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int32" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="46"
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@section("mysection") let clangConstantOp5 = 5 + static_const_char
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// CHECK-LABEL: (pattern_named type="Int8" "clangConstantOp5")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int8" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="47"
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@section("mysection") let clangConstantOp6 = 6 + static_const_char_with_long_literal
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// CHECK-LABEL: (pattern_named type="Int8" "clangConstantOp6")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int8" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="48"
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@section("mysection") let swiftConstantOp1 = 1 + clangConstantOp1
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// CHECK-LABEL: (pattern_named type="Int32" "swiftConstantOp1")
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// CHECK: (processed_constant_folded_init=integer_literal_expr implicit type="Int32" location={{.*}}client.swift:{{.*}} range=[{{.*}}] value="44"
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