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Add struct field access

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This commit is contained in:
Maxwell
2026-01-21 18:41:24 +11:00
parent a3ca979133
commit b289448f56
5 changed files with 92 additions and 2 deletions
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71
src/interpreter.c
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@@ -2028,6 +2028,77 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
break;
}
/*
* OBJECTS
* Allows manipulation of Ground objects.
*/
// getfield $obj &field &result
case GETFIELD: {
if (in->args.length < 3) {
runtimeError(TOO_FEW_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.length > 3) {
runtimeError(TOO_MANY_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.args[0].type != VALUE) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting an Object for arg 1", in, currentInstruction);
}
if (in->args.args[0].value.value.type != CUSTOM) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting an Object for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
if (in->args.args[2].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 3", in, currentInstruction);
}
GroundObjectField* field = findField(*in->args.args[0].value.value.data.customVal, in->args.args[1].value.refName);
if (field == NULL) {
runtimeError(UNKNOWN_VARIABLE, "Struct does not contain that field", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[2].value.refName, field->value);
break;
}
// setfield &obj &field $value
case SETFIELD: {
if (in->args.length < 3) {
runtimeError(TOO_FEW_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.length > 3) {
runtimeError(TOO_MANY_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.args[0].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef to an Object for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
if (in->args.args[2].type != VALUE) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a Value for arg 3", in, currentInstruction);
}
GroundVariable* var = findVariable(*scope->variables, in->args.args[0].value.refName);
if (var == NULL) {
runtimeError(UNKNOWN_VARIABLE, "Could not find that object", in, currentInstruction);
}
if (var->value.type != CUSTOM) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef to an Object for arg 1", in, currentInstruction);
}
GroundObjectField* field = findField(*var->value.data.customVal, in->args.args[1].value.refName);
if (field == NULL) {
runtimeError(UNKNOWN_VARIABLE, "Struct does not contain that field", in, currentInstruction);
}
if (field->value.type != in->args.args[2].value.value.type) {
runtimeError(ARG_TYPE_MISMATCH, "Field type and provided type do not match", in, currentInstruction);
}
field->value = copyGroundValue(&in->args.args[2].value.value);
break;
}
case DROP: {
if (in->args.length < 1) {
runtimeError(TOO_FEW_ARGS, "Expecting 1 arg", in, currentInstruction);