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Date Submitted

Last Update

0008193

Part 01: TTCN-3 Core Language

Technical

public

19-01-2023 10:15

05-09-2023 10:24

Reporter

Matthias Simon

Assigned To

Jens Grabowski

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

assigned

Resolution

open

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0008193: Redefine keywords and reserved words

Description

An explicit distinction between keywords and reserved words is a prerequisite for moving language parts, such as predefined functions, matching-mechanism or timers to some kind of predefined standard library. It would also simplify BNF rules.

Where's the difference?

A _reserved word_ is an identifier which cannot be used as a name for user-defined variables, functions, parameters, etc. For example the identifiers "int2str", "integer", "this" or "object" are reserved words and have not special syntactic meaning except for being predefined or reserved. In some scopes reserved words are allowed to be used by the user (for example as name in field-definitions).

A _keyword_ is a word with special meaning in a particular context. Keywords should not be used as identifiers (for example "for", "while", ...). There are some few exceptions however ("testcase", "class", "all", "any", ...):

testcase.stop; // "testcase" is used as identifier referencing the current testcase
testcase TC1() {} // "testcase" is a keyword introducing a testcase definition

Tags

No tags attached.

Clause Reference(s)

n/a

Source (company - Author)

Nokia - Matthias Simon

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Notes
(0016519) Jens Grabowski (manager) 05-09-2023 10:22	TTF discussion: To be discussed in the context of the next major release.

Issue History
Date Modified	Username	Field	Change
19-01-2023 10:15	Matthias Simon	New Issue
05-09-2023 10:22	Jens Grabowski	Note Added: 0016519
05-09-2023 10:24	Jens Grabowski	Assigned To	=> Jens Grabowski
05-09-2023 10:24	Jens Grabowski	Status	new => assigned

MantisBT 1.2.14 [^]