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Added 'Toy_String' to 'Toy_Value' structure, read more

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To help with storing strings within tables, I've replaced the unused
'_padding' member of 'Toy_String' with 'cachedHash', which is set to
zero on string allocation.

The hash of a string isn't generated and stored until it's actually
needed, as the rope pattern means not every string needs a hash -
hopefully this will save unnecessarily wasted time.

When a hash of a string is needed, the hashing function first checks to
see if that string already has one, and if so, returns it. Again, less
time wasted.

When generating a new string hash, the hashing function takes the
string's type into account, as node-based strings first need their
contents assembled into a simple char buffer.

Other changes include:

* Changed 'TOY_VALUE_TO_*' to 'TOY_VALUE_FROM_*'
* Changed 'TOY_VALUE_IS_EQUAL' to 'TOY_VALUES_ARE_EQUAL'
* Added a missing '#pragma once' to 'toy_print.h'
This commit is contained in:
Kayne Ruse
2024-10-07 17:20:08 +11:00
parent d62ee2a9a3
commit 14653a303f
25 changed files with 266 additions and 175 deletions
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8
tests/cases/test_stack.c
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@@ -27,9 +27,9 @@ int test_stack_basics() {
Toy_Stack* stack = Toy_allocateStack();
//check if it worked (push)
Toy_pushStack(&stack, TOY_VALUE_TO_INTEGER(42));
Toy_pushStack(&stack, TOY_VALUE_TO_INTEGER(69));
Toy_pushStack(&stack, TOY_VALUE_TO_INTEGER(420));
Toy_pushStack(&stack, TOY_VALUE_FROM_INTEGER(42));
Toy_pushStack(&stack, TOY_VALUE_FROM_INTEGER(69));
Toy_pushStack(&stack, TOY_VALUE_FROM_INTEGER(420));
if (
stack == NULL ||
stack->capacity != 64 ||
@@ -89,7 +89,7 @@ int test_stack_stress() {
//allocate 500 values
for (int i = 0; i < 500; i++) {
Toy_pushStack(&stack, TOY_VALUE_TO_INTEGER(i));
Toy_pushStack(&stack, TOY_VALUE_FROM_INTEGER(i));
}
//check if it worked