journal/tool/typeLib.jq
2024-11-07 11:39:39 +00:00

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include "testLib";
def typecheckingEnabled:
if $ENV["TYPECHECKING"] != null and (["1", "true", "on"] | any(index($ENV["TYPECHECKING"]))) then
true
else false end;
def typecheckingDebug:
if $ENV["TYPECHECKING_DEBUG"] != "" and $ENV["TYPECHECKING_DEBUG"] != null then
true
else false end;
def typeErrorText:
. as $type |
"Type Error Checking '\($type)'";
def typeErrorText($type): $type | typeErrorText;
def typeError($type):
if typecheckingDebug then debug({$type, value: .}) end |
error($type | typeErrorText);
def ensureNull: if typecheckingEnabled and (. | type != "null") then typeError("null") end;
def ensureBool: if typecheckingEnabled and (. | type) != "boolean" then typeError("bool") end;
def ensureString: if typecheckingEnabled and (. | type) != "string" then typeError("string") end;
def ensureArray: if typecheckingEnabled and (. | type) != "array" then typeError("array") end;
def ensureObject: if typecheckingEnabled and (. | type) != "object" then typeError("object") end;
def ensureNumber: if typecheckingEnabled and (. | type) != "number" then typeError("number") end;
def ensureNull($value): $value | ensureNull;
def ensureBool($value): $value | ensureBool;
def ensureString($value): $value | ensureString;
def ensureArray($value): $value | ensureArray;
def ensureObject($value): $value | ensureObject;
def ensureNumber($value): $value | ensureNumber;
def ensureNullOr(ensureType):
if . == null then . else . | ensureType end;
def ensureKey($type; $key): if (. | has($key) | not) then typeError("\($type):\($key)") end;
def ensureKey($value; $type; $key): $value | ensureKey($type; $key);
# TYPECHECKING=1 required for tests
def typeLibTests:
expectPassed(runTest(
"null is null";
(null | ensureNull);
true;
false
)) |
expectPassed(runTest(
"boolean is not null";
(true | ensureNull);
(. == typeErrorText("null"));
true
));