GCC Code Coverage Report

Directory: ../
File: src/symboltablebuilder/TypeQualifiers.cpp
Date: 2025-03-05 01:50:32
Exec Total Coverage
Lines: 73 77 94.8%
Functions: 7 7 100.0%
Branches: 54 66 81.8%
Line Branch Exec Source
1 // Copyright (c) 2021-2025 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 4525471 TypeQualifiers TypeQualifiers::of(uint16_t superType) {
17
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 4525471 switch (superType) {
18 107346 case TY_DOUBLE: // fall-through
19 case TY_INT: // fall-through
20 case TY_SHORT: // fall-through
21 case TY_LONG:
22 107346 return {/*const*/ false, /*signed*/ true, /*unsigned*/ false};
23 258548 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_FUNCTION: // fall-through
33 case TY_PROCEDURE:
34 258548 return {/*const*/ false, /*signed*/ false, /*unsigned*/ true};
35 67689 case TY_GENERIC:
36 // Generics must be non-signed and non-unsigned at the same time to ensure a proper function matching
37 67689 return {/*const*/ false, /*signed*/ false, /*unsigned*/ false};
38 1621 case TY_ENUM: // fall-through
39 case TY_ALIAS: // fall-through
40 case TY_IMPORT:
41 1621 return {/*const*/ true, /*signed*/ false, /*unsigned*/ true};
42 4090267 case TY_DYN: // fall-through
43 case TY_INVALID: // fall-through
44 case TY_UNRESOLVED:
45 // Return all-false qualifiers to not match anything
46 4090267 return {/*const*/ false, /*signed*/ false, /*unsigned*/ false};
47 ✗ default:
48 − throw CompilerError(UNHANDLED_BRANCH, "Symbol qualifier fallthrough"); // GCOV_EXCL_LINE
49 }
50 }
51
52 /**
53 * Merge two sets of type qualifiers. If possible, prefer the opposite of the default of the super type
54 *
55 * @param other Other type qualifiers object
56 * @return Merged qualifiers object
57 */
58 9944 TypeQualifiers TypeQualifiers::merge(const TypeQualifiers &other) const {
59 9944 TypeQualifiers result;
60
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 9944 const bool isGeneric = !getBit(BIT_INDEX_SIGNED) && !getBit(BIT_INDEX_UNSIGNED);
61
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 79552 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
62
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 69608 const bool x = getBit(i);
63
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 69608 const bool y = other.getBit(i);
64
65
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 69608 if (i == BIT_INDEX_SIGNED || i == BIT_INDEX_UNSIGNED) {
66
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 19888 result.setBit(i, isGeneric ? y : x);
67 } else {
68
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 49720 result.setBit(i, x | y);
69 }
70 }
71 9944 return result;
72 }
73
74 /**
75 * Check if two sets of type qualifiers match
76 *
77 * @param other The rhs qualifiers
78 * @param allowConstify Match when the types are the same, but the lhs type is more const restrictive than the rhs type
79 * @return Matching or not
80 */
81 10852 bool TypeQualifiers::match(TypeQualifiers other, bool allowConstify) const {
82 10852 const TypeQualifiers thisQualifiers = *this;
83
84 // If allowConstify is enabled, only allow to match lhs=const and rhs=non-const
85
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 10852 if (allowConstify && thisQualifiers.isConst)
86 1358 other.isConst = true;
87
88 // Check if qualifiers are equal
89 10852 return thisQualifiers == other;
90 }
91
92 /**
93 * Erase all qualifiers that are set in the mask. This is used in type matching.
94 *
95 * @param mask Bitmask to erase with
96 */
97 4387 void TypeQualifiers::eraseWithMask(const TypeQualifiers &mask) {
98 // Zero out all bits that are set in the mask
99
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 35096 for (uint8_t i = 0; i <= BIT_INDEX_MAX; i++) {
100
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 30709 if (mask.getBit(i)) {
101 // Zero out the bit
102 987 setBit(i, false);
103
104 // If we set the signed/unsigned bit to zero, we need to set the other to one
105
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 987 if (i == BIT_INDEX_SIGNED) {
106 ✗ setBit(BIT_INDEX_UNSIGNED, true);
107
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 987 } else if (i == BIT_INDEX_UNSIGNED) {
108 205 setBit(BIT_INDEX_SIGNED, true);
109 }
110 }
111 }
112 4387 }
113
114 10949 bool operator==(const TypeQualifiers &lhs, const TypeQualifiers &rhs) {
115 10949 const bool isConst = lhs.isConst == rhs.isConst;
116 10949 const bool isSigned = lhs.isSigned == rhs.isSigned;
117 10949 const bool isUnsigned = lhs.isUnsigned == rhs.isUnsigned;
118 10949 const bool isHeap = lhs.isHeap == rhs.isHeap;
119
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 10949 return isConst && isSigned && isUnsigned && isHeap;
120 }
121
122 189470 bool TypeQualifiers::getBit(uint8_t index) const {
123
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 189470 switch (index) {
124 24275 case BIT_INDEX_CONST:
125 24275 return isConst;
126 34219 case BIT_INDEX_SIGNED:
127 34219 return isSigned;
128 33876 case BIT_INDEX_UNSIGNED:
129 33876 return isUnsigned;
130 24275 case BIT_INDEX_HEAP:
131 24275 return isHeap;
132 24275 case BIT_INDEX_PUBLIC:
133 24275 return isPublic;
134 24275 case BIT_INDEX_INLINE:
135 24275 return isInline;
136 24275 case BIT_INDEX_COMPOSITION:
137 24275 return isComposition;
138 ✗ default:
139 − throw CompilerError(UNHANDLED_BRANCH, "Bit index fallthrough"); // GCOV_EXCL_LINE
140 }
141 }
142
143 70800 bool TypeQualifiers::setBit(uint8_t index, bool value) {
144
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 70800 switch (index) {
145 10726 case BIT_INDEX_CONST:
146 10726 return isConst = value;
147 10149 case BIT_INDEX_SIGNED:
148 10149 return isSigned = value;
149 10149 case BIT_INDEX_UNSIGNED:
150 10149 return isUnsigned = value;
151 9944 case BIT_INDEX_HEAP:
152 9944 return isHeap = value;
153 9944 case BIT_INDEX_PUBLIC:
154 9944 return isPublic = value;
155 9944 case BIT_INDEX_INLINE:
156 9944 return isInline = value;
157 9944 case BIT_INDEX_COMPOSITION:
158 9944 return isComposition = value;
159 ✗ default:
160 − throw CompilerError(UNHANDLED_BRANCH, "Bit index fallthrough"); // GCOV_EXCL_LINE
161 }
162 }
163
164 } // namespace spice::compiler
165