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
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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 15755522 TypeQualifiers TypeQualifiers::of(uint16_t superType) {
17
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 15755522 switch (superType) {
18 1326773 case TY_DOUBLE: // fall-through
19 case TY_INT: // fall-through
20 case TY_SHORT: // fall-through
21 case TY_LONG:
22 1326773 return {/*const*/ false, /*signed*/ true, /*unsigned*/ false};
23 3809697 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 3809697 return {/*const*/ false, /*signed*/ false, /*unsigned*/ true};
36 951480 case TY_GENERIC:
37 // Generics must be non-signed and non-unsigned at the same time to ensure a proper function matching
38 951480 return {/*const*/ false, /*signed*/ false, /*unsigned*/ false};
39 32258 case TY_ENUM: // fall-through
40 case TY_ALIAS: // fall-through
41 case TY_IMPORT:
42 32258 return {/*const*/ true, /*signed*/ false, /*unsigned*/ true};
43 9635314 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 9635314 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 180150 TypeQualifiers TypeQualifiers::merge(const TypeQualifiers &other) const {
60 180150 TypeQualifiers result;
61
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 180150 const bool isGeneric = !getBit(BIT_INDEX_SIGNED) && !getBit(BIT_INDEX_UNSIGNED);
62
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 1441200 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
63
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 1261050 const bool x = getBit(i);
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 1261050 const bool y = other.getBit(i);
65
66
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 1261050 if (i == BIT_INDEX_SIGNED || i == BIT_INDEX_UNSIGNED) {
67
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 360300 result.setBit(i, isGeneric ? y : x);
68 } else {
69
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 900750 result.setBit(i, x | y);
70 }
71 }
72 180150 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 162111 bool TypeQualifiers::match(TypeQualifiers other, bool allowConstify) const {
83 162111 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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 162111 if (allowConstify && thisQualifiers.isConst)
87 20270 other.isConst = true;
88
89 // Check if qualifiers are equal
90 162111 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 52318 void TypeQualifiers::eraseWithMask(const TypeQualifiers &mask) {
99 // Zero out all bits that are set in the mask
100
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 418544 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
101
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 366226 if (mask.getBit(i)) {
102 // Zero out the bit
103 82973 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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 82973 if (i == BIT_INDEX_SIGNED) {
107 13682 setBit(BIT_INDEX_UNSIGNED, true);
108
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 69291 } else if (i == BIT_INDEX_UNSIGNED) {
109 35505 setBit(BIT_INDEX_SIGNED, true);
110 }
111 }
112 }
113 52318 }
114
115 163046 bool operator==(const TypeQualifiers &lhs, const TypeQualifiers &rhs) {
116 163046 const bool isConst = lhs.isConst == rhs.isConst;
117 163046 const bool isSigned = lhs.isSigned == rhs.isSigned;
118 163046 const bool isUnsigned = lhs.isUnsigned == rhs.isUnsigned;
119 163046 const bool isHeap = lhs.isHeap == rhs.isHeap;
120
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 163046 return isConst && isSigned && isUnsigned && isHeap;
121 }
122
123 3242263 bool TypeQualifiers::getBit(uint8_t index) const {
124
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 3242263 switch (index) {
125 412618 case BIT_INDEX_CONST:
126 412618 return isConst;
127 592768 case BIT_INDEX_SIGNED:
128 592768 return isSigned;
129 586405 case BIT_INDEX_UNSIGNED:
130 586405 return isUnsigned;
131 412618 case BIT_INDEX_HEAP:
132 412618 return isHeap;
133 412618 case BIT_INDEX_PUBLIC:
134 412618 return isPublic;
135 412618 case BIT_INDEX_INLINE:
136 412618 return isInline;
137 412618 case BIT_INDEX_COMPOSITION:
138 412618 return isComposition;
139 − default: // GCOV_EXCL_LINE
140 − throw CompilerError(UNHANDLED_BRANCH, "Bit index fallthrough"); // GCOV_EXCL_LINE
141 }
142 }
143
144 1393210 bool TypeQualifiers::setBit(uint8_t index, bool value) {
145
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 1393210 switch (index) {
146 188326 case BIT_INDEX_CONST:
147 188326 return isConst = value;
148 229337 case BIT_INDEX_SIGNED:
149 229337 return isSigned = value;
150 229337 case BIT_INDEX_UNSIGNED:
151 229337 return isUnsigned = value;
152 181430 case BIT_INDEX_HEAP:
153 181430 return isHeap = value;
154 204480 case BIT_INDEX_PUBLIC:
155 204480 return isPublic = value;
156 180150 case BIT_INDEX_INLINE:
157 180150 return isInline = value;
158 180150 case BIT_INDEX_COMPOSITION:
159 180150 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