GCC Code Coverage Report

Directory: ../
Coverage: low: ≥ 0% medium: ≥ 75.0% high: ≥ 90.0%
Coverage Exec / Excl / Total
Lines: 100.0% 74 / 6 / 80
Functions: 100.0% 7 / 0 / 7
Branches: 83.3% 55 / 12 / 78
src/symboltablebuilder/TypeQualifiers.cpp
Line Branch Exec Source
1 // Copyright (c) 2021-2026 ChilliBits. All rights reserved.
2
3 #include "TypeQualifiers.h"
4
5 #include <exception/CompilerError.h>
6 #include <symboltablebuilder/TypeChain.h>
7
8 namespace spice::compiler {
9
10 /**
11 * Get default type qualifiers for a given super type
12 *
13 * @param superType Super type
14 * @return Default type qualifiers
15 */
16 15340601 TypeQualifiers TypeQualifiers::of(uint16_t superType) {
17
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 15340601 switch (superType) {
18 1298500 case TY_DOUBLE: // fall-through
19 case TY_INT: // fall-through
20 case TY_SHORT: // fall-through
21 case TY_LONG:
22 1298500 return {/*const*/ false, /*signed*/ true, /*unsigned*/ false};
23 3737081 case TY_BYTE: // fall-through
24 case TY_CHAR: // fall-through
25 case TY_STRING: // fall-through
26 case TY_BOOL: // fall-through
27 case TY_PTR: // fall-through
28 case TY_REF: // fall-through
29 case TY_ARRAY: // fall-through
30 case TY_STRUCT: // fall-through
31 case TY_INTERFACE: // fall-through
32 case TY_UNION: // fall-through
33 case TY_FUNCTION: // fall-through
34 case TY_PROCEDURE:
35 3737081 return {/*const*/ false, /*signed*/ false, /*unsigned*/ true};
36 935188 case TY_GENERIC:
37 // Generics must be non-signed and non-unsigned at the same time to ensure a proper function matching
38 935188 return {/*const*/ false, /*signed*/ false, /*unsigned*/ false};
39 31616 case TY_ENUM: // fall-through
40 case TY_ALIAS: // fall-through
41 case TY_IMPORT:
42 31616 return {/*const*/ true, /*signed*/ false, /*unsigned*/ true};
43 9338216 case TY_DYN: // fall-through
44 case TY_INVALID: // fall-through
45 case TY_UNRESOLVED:
46 // Return all-false qualifiers to not match anything
47 9338216 return {/*const*/ false, /*signed*/ false, /*unsigned*/ false};
48 − default: // GCOV_EXCL_LINE
49 − throw CompilerError(UNHANDLED_BRANCH, "Symbol qualifier fallthrough"); // GCOV_EXCL_LINE
50 }
51 }
52
53 /**
54 * Merge two sets of type qualifiers. If possible, prefer the opposite of the default of the super type
55 *
56 * @param other Other type qualifiers object
57 * @return Merged qualifiers object
58 */
59 177432 TypeQualifiers TypeQualifiers::merge(const TypeQualifiers &other) const {
60 177432 TypeQualifiers result;
61
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 177432 const bool isGeneric = !getBit(BIT_INDEX_SIGNED) && !getBit(BIT_INDEX_UNSIGNED);
62
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 1419456 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
63
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 1242024 const bool x = getBit(i);
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 1242024 const bool y = other.getBit(i);
65
66
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 1242024 if (i == BIT_INDEX_SIGNED || i == BIT_INDEX_UNSIGNED) {
67
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 354864 result.setBit(i, isGeneric ? y : x);
68 } else {
69
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 887160 result.setBit(i, x | y);
70 }
71 }
72 177432 return result;
73 }
74
75 /**
76 * Check if two sets of type qualifiers match
77 *
78 * @param other The rhs qualifiers
79 * @param allowConstify Match when the types are the same, but the lhs type is more const restrictive than the rhs type
80 * @return Matching or not
81 */
82 159563 bool TypeQualifiers::match(TypeQualifiers other, bool allowConstify) const {
83 159563 const TypeQualifiers thisQualifiers = *this;
84
85 // If allowConstify is enabled, only allow to match lhs=const and rhs=non-const
86
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 159563 if (allowConstify && thisQualifiers.isConst)
87 19980 other.isConst = true;
88
89 // Check if qualifiers are equal
90 159563 return thisQualifiers == other;
91 }
92
93 /**
94 * Erase all qualifiers that are set in the mask. This is used in type matching.
95 *
96 * @param mask Bitmask to erase with
97 */
98 51442 void TypeQualifiers::eraseWithMask(const TypeQualifiers &mask) {
99 // Zero out all bits that are set in the mask
100
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 411536 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
101
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 360094 if (mask.getBit(i)) {
102 // Zero out the bit
103 81469 setBit(i, false);
104
105 // If we set the signed/unsigned bit to zero, we need to set the other to one
106
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 81469 if (i == BIT_INDEX_SIGNED) {
107 13520 setBit(BIT_INDEX_UNSIGNED, true);
108
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 67949 } else if (i == BIT_INDEX_UNSIGNED) {
109 34865 setBit(BIT_INDEX_SIGNED, true);
110 }
111 }
112 }
113 51442 }
114
115 160498 bool operator==(const TypeQualifiers &lhs, const TypeQualifiers &rhs) {
116 160498 const bool isConst = lhs.isConst == rhs.isConst;
117 160498 const bool isSigned = lhs.isSigned == rhs.isSigned;
118 160498 const bool isUnsigned = lhs.isUnsigned == rhs.isUnsigned;
119 160498 const bool isHeap = lhs.isHeap == rhs.isHeap;
120
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 160498 return isConst && isSigned && isUnsigned && isHeap;
121 }
122
123 3192655 bool TypeQualifiers::getBit(uint8_t index) const {
124
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 3192655 switch (index) {
125 406306 case BIT_INDEX_CONST:
126 406306 return isConst;
127 583738 case BIT_INDEX_SIGNED:
128 583738 return isSigned;
129 577387 case BIT_INDEX_UNSIGNED:
130 577387 return isUnsigned;
131 406306 case BIT_INDEX_HEAP:
132 406306 return isHeap;
133 406306 case BIT_INDEX_PUBLIC:
134 406306 return isPublic;
135 406306 case BIT_INDEX_INLINE:
136 406306 return isInline;
137 406306 case BIT_INDEX_COMPOSITION:
138 406306 return isComposition;
139 − default: // GCOV_EXCL_LINE
140 − throw CompilerError(UNHANDLED_BRANCH, "Bit index fallthrough"); // GCOV_EXCL_LINE
141 }
142 }
143
144 1371878 bool TypeQualifiers::setBit(uint8_t index, bool value) {
145
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 1371878 switch (index) {
146 185398 case BIT_INDEX_CONST:
147 185398 return isConst = value;
148 225817 case BIT_INDEX_SIGNED:
149 225817 return isSigned = value;
150 225817 case BIT_INDEX_UNSIGNED:
151 225817 return isUnsigned = value;
152 178672 case BIT_INDEX_HEAP:
153 178672 return isHeap = value;
154 201310 case BIT_INDEX_PUBLIC:
155 201310 return isPublic = value;
156 177432 case BIT_INDEX_INLINE:
157 177432 return isInline = value;
158 177432 case BIT_INDEX_COMPOSITION:
159 177432 return isComposition = value;
160 − default: // GCOV_EXCL_LINE
161 − throw CompilerError(UNHANDLED_BRANCH, "Bit index fallthrough"); // GCOV_EXCL_LINE
162 }
163 }
164
165 } // namespace spice::compiler
166