Changelog

2026

v0.15.42026-07-07

Added

• **Quartus: New Project** — Quartus: New Project command (quartus-assistant.newProject) scaffolds a complete Quartus project with guided prompts for device family, part number, entity name, and editable path; generates QPF, QSF, VHDL entity, testbench, and DO file #86

v0.15.32026-06-30

Added

• **QSF auto-completamento** — scrivendo set_global_assignment -name VHDL_FILE in un file .qsf, la tendina mostra i file .vhd/.vhdl con navigazione drill-down per cartelle #80

v0.15.22026-06-26

Added

• **VHDL Formatter** — Shift+Alt+F (Format Document) now indents VHDL files correctly #45
• Line-based state machine indentation for: entity, architecture, process, if/elsif, case/when, for loops, generate, comments
• Configurable via vhdl.formatter.indentSize and vhdl.formatter.insertSpaces
• 18 unit tests covering all constructs

v0.15.12026-06-25

Added

• **Rename Provider** — F2 (Rename Symbol) now works on VHDL entity names, architecture names, signal names, port names, and variable names. Renaming an entity declaration also renames all its instantiations, and vice-versa #40

Changed

• Bumped dev dependencies (@types/node, typescript-eslint, serialize-javascript, @vscode/test-cli)

v0.15.02026-06-19

Added

• **Fit Resource Summary** — after a Quartus build, the QSF Tree View now displays a live **Fit Summary** section parsed from <project>.fit.summary. Each resource (logic elements, pins, registers, PLLs, memory bits, etc.) is shown with color-coded usage:
• 🟢 Green — below 70%
• 🟡 Orange — 70%–90%
• 🔴 Red — ≥90%
• Summary entries are sorted by usage descending (most critical first), and the parent node shows $(pass)/$(error) depending on Fitter status
• Automatic watcher on *.fit.summary files — the tree view refreshes as soon as Quartus finishes a build

Changed

• Landing page and README screenshot gallery — "Build output" replaced with "Fit Resource Summary"

v0.14.52026-06-19

Added

• Signature help for VHDL entity instantiations — when typing inside a port map(...), VS Code now shows the entity's port names and types as you type #21
• Quick Fix for undeclared identifiers — Ctrl+. on an undeclared identifier offers to declare it as a signal in the architecture body

Changed

• Entity completion now triggers only after typing work. prefix instead of on bare entity/component/architecture/end keywords, reducing noise in autocompletion

v0.14.42026-06-18

Added

• Find All References provider for VHDL — right-click any symbol (signal, variable, constant, port, entity, etc.) and pick **Find All References** for cross-file navigation #21

Fixed

• False positive "Undeclared identifier" on after keyword
• Syntax linter now correctly detects begin on the same line as process
• QSF lint not firing — language ID corrected from qsf to quartus; linter now runs on open editor as well
• Port lint no longer flags commented-out port declarations
• parseSignals now skips declarations inside VHDL comments
• Function completion (rising_edge/falling_edge etc.) now works with partial prefix — changed from startsWith to includes

Changed

• Moved build scripts (esbuild.js, .vscode-test.mjs) to scripts/ directory
• Moved opencode.jsonc to .opencode/ directory

v0.14.32026-06-17

Added

• Hierarchical VHDL Outline — process symbols now contain local variable/constant declarations as children
• Function and procedure symbols in packages now show their parameters as children in the Outline
• Entity symbols now use the **Class** (orange diamond) icon instead of {} braces
• Entity instantiations (label : entity work.xxx) now also use the **Class** icon for consistency
• Outline screenshot in documentation

Fixed

• False positive "Undeclared identifier" and missing unused-signal warnings for comma-separated declarations (signal a, b : std_logic;) — both names are now recognized

v0.14.22026-06-17

Fixed

• False positive "Undeclared identifier" on identifiers after guarded keyword (e.g. q <= guarded d;)
• False positive "Undeclared identifier" on loop label after end loop (e.g. end loop loop_label;)

v0.14.12026-06-17

Added

• Syntax highlighting for alias declaration names (pattern alias <name> is)

Fixed

• False positive "Undeclared identifier 'alias'" on alias declarations (alias name is target)
• False positive "Missing ';'" / "'end' without matching scope" on context declarations (context name is ... end context name)
• False positive "Undeclared identifier" on alias target and context name identifiers in undeclaredIdentifierLint
• Missing syntax highlighting for alias and context keywords

v0.14.02026-06-16

Added

• VitePress documentation site at https://guizzz.github.io/VHDL-Essentials/ with full guide, features, troubleshooting, and configuration pages #58
• GitHub Actions deploy workflow for automatic Pages publishing on push to master #61
• Custom dark theme (#0f0f23 background, #4fc3f7 cyan accent) with VitePress branding throughout #62
• SVG logo with sine/square wave oscilloscope design, 5-pin symmetrical layout, rounded corners
• Screenshot gallery on landing page (2×2 grid with hover glow) showing key features: pin diagnostics, build output, code actions, entity navigation
• Hero image layout: extension screenshot displayed next to title in the VitePress hero section
• Simplified README (~100 lines) with docs badge, link to VitePress site, and cleaned-up feature listing

Changed

• Extension icon (resources/icon.png) resynchronised with the new SVG logo design
• docs/public/screenshots/build_2.png optimised (107 KB → 34 KB)

Removed

• resources/screen/ directory (duplicate screenshot location — all assets now live under docs/public/screenshots/)

Documentation

• Full VitePress documentation: Getting Started, Features, Troubleshooting, Commands, Configuration, and Changelog pages #59
• 15 feature screenshots reorganised under docs/public/screenshots/ #60

v0.13.22026-06-12

Added

• Cross-file package symbol resolution for undeclared identifier lint — symbols exported by a package in any open file are resolved via the EntityIndexer, eliminating false positives for identifiers consumed via use work.pkg.all #71
• IEEE and Synopsys function keywords (to_signed, to_unsigned, resize, conv_integer, conv_std_logic_vector, shift_left, shift_right, etc.) added to VHDL keywords whitelist — no more spurious undeclared-identifier errors for common numeric_std routines #72

Fixed

• Quartus compile output channel is cleared before each simulation run, so stale messages from previous runs are no longer visible
• Non-error messages from Quartus compile diagnostics (info/warning severity) are skipped when generating editor diagnostics — they remain visible in the output channel but no longer produce squiggly underlines
• info severity added to QuartusCompileError type for proper severity categorization

v0.13.12026-06-11

Fixed

• parseQuartusError e test cross-platform: rilevamento path assoluti Windows su CI Linux tramite regex WIN_ABS_RE, normalizzazione separator backslash/forward-slash, confronti path indipendenti dalla piattaforma nei test

v0.13.02026-06-10

Added

• VHDL Document Symbols (Outline) — Ctrl+Shift+O shows file structure: entities with ports/generics, architectures with signals/constants/types/processes/component declarations/entity instantiations/component instantiations, packages with symbols #20
• Compilation error navigation — quartus build errors parsed from msg_tcl_post_message and raw Error (NNNN): format; squiggly underlines on source lines in VHDL files; Ctrl+clickable paths in the output channel #44
• Live transcript output — vsim stdout piped in real time to a dedicated 'Questa Transcript' LogOutputChannel #35

Fixed

• runQuartusTask now returns a Promise<number | null> that resolves only on process close event — await runQuartusTask() reliably waits for build completion before proceeding
• File path resolution in compile errors: uses RelativePattern(projectDir, '**/*.vhd') pre-build scan to build a basename → full path map for instant lookups during parseChunk

Changed

• Build/flash output channel converted to LogOutputChannel — native severity-aware coloring via .info() / .warn() / .error() instead of ANSI escape codes (more reliable on Windows)

v0.12.42026-06-09

Added

• Undeclared identifier detection — identifiers used but not declared are flagged as errors; recognizes signals, variables, constants, entity ports, generics, types, subtypes, enumeration literals, package names, and for-loop variables #64
• Go to Definition for entity-local signals, variables, and constants — Ctrl+Click jumps from usage to declaration inside the architecture body #69

Fixed

• Undeclared identifier linter: false positives for time units (us, ms, etc.), severity levels (failure, note, warning), hex/binary literal prefixes (x", b", o"), identifiers inside string literals, and package declaration names
• Unused-signal linter: no longer flags package-scoped declarations (consumed cross-file via use work.pkg.all) #70

Documentation

• README updated with undeclared identifier detection, Go to Definition for local signals, and updated Code Actions table

v0.12.32026-06-08

Added

• Code Actions (Quick Fixes) for all lint diagnostics — press Alt+Enter on any warning to apply automatic fixes: missing/extra ports in port map, duplicate declarations, unused signals, sensitivity list corrections, QSF duplicates, missing semicolons, wrong end keywords, unclosed scopes, else/elsif/when wrapping, package body stubs, and unassigned port stubs #43
• Shared VHDL_KEYWORDS constant extracted to src/utils/vhdlKeywords.ts — both sensitivity and unused-signal linters now import from one place #67
• Centralized offsetToPosition() utility in src/utils/positionUtils.ts — used by duplicate-signal, port-map, and unused-signal linters #66
• 400ms debounce on TodoCommentLinter to avoid redundant validation on rapid edits #65
• Unused signal/variable/constant lint: warns when a declaration is never used; unused names are grayed out (40% opacity) for visual feedback; declarations inside VHDL comments (-- signal foo...) are correctly ignored
• TODO comment markers tracking: scans for TODO, FIXME, HACK, XXX, and NOTE inside VHDL comments — shown as Info diagnostics in the Problems panel with gold (#FFD700) highlighting
• parseSignals offset now points to variable/signal name instead of declaration keyword (fixes range placement)

Fixed

• findUnusedSignals: signal names are now regex-escaped before building the search pattern, preventing crashes if a signal name contained regex-special characters #68
• Bare end without trailing space (e.g., end alone on a line) is now correctly recognized as a scope terminator — no more spurious Unclosed architecture diagnostic
• fixPortmapMissingPort code action: scans forward from entity line tracking paren depth, appends comma to last mapping, and inserts new mapping with correct indent alignment (no stray ; at wrong position)
• findUnusedSignals: restored original offsetToLine + forward-walk column calculation that correctly handles CRLF (\r\n) line endings; removed buggy lineStarts binary-search approach

Documentation

• Added Code Actions feature section with autofix screenshot to README
• Updated README with unused declarations & TODO markers sections
• All screenshots now use uniform <img width="600"> for consistent layout

v0.12.12026-06-05

Added

• Port map validation: missing ports and undeclared formals detected in direct entity instantiations (label : entity work.xxx) #39
• 108 new unit tests across port map parser, port map linter, entity parser, and regression tests

Fixed

• offsetToPosition with CRLF files: replaced split(/\r?\n/) with substring + split('\n') to avoid 1-char/line accumulation error that placed diagnostics on wrong lines #39
• parseMappings no longer splits on commas inside VHDL comments
• findBalancedParen now skips VHDL comments during parenthesis counting
• Entity declaration offset now points to entity name, not the entity keyword
• EntityIndexer O(n²) → O(n) bug in file removal
• Various code quality: translated Italian comments to English, improved error handler, hover ordering, CI step ordering

v0.12.02026-06-05

Added

• VHDL auto-completion: ~80 keywords, local symbols (signals/variables/constants/ports), entities, package names, and package symbols; context-aware (entity/component/architecture context shows only entities) #57
• Pin assignment tree items now have a blue plug icon and left-click opens .qsf at the pin's line #36
• Improved entity context detection — works with labels like spi_master_out : entity work.fa

v0.11.02026-06-05

Added

• 33 VHDL code snippets: entity, arch, pkg, pkgb, process, proc_nr, proc_comb, fsm, inst, comp, tb, clock, stim, sig, sigv, var, const, type, subtype, case, for, if, func, proc, func_decl, proc_decl, forg, ifg, cnt, sr, others, wait, assert #37
• Package body completeness lint — warns when a function/procedure is declared in a package but not implemented in its body
• demo/ project with source VHD files and testbench (for development and testing)
• 58 unit tests across 7 test files for parsers, hover icons, and real-world VHDL #25

Fixed

• Context menu commands now accept serialized vscode.Uri from tree view items; auto-matches selected file without QuickPick; robust path extraction with fsPath/resourceUri.fsPath #36
• isTestBench() no longer flags entities with own ports + port map as testbenches — requires entity with no ports to be considered a testbench
• variableParser now skips component ... end component blocks to avoid false duplicate port declarations
• syntaxLint.checkSemicolon skips label : name pattern (component instantiation continuation) to avoid false positive Missing ;
• syntaxLint.tryOpenScope for function/procedure: if line ends with ; and no is → declaration only, does not open a scope

v0.10.32026-06-04

Added

• Sensitivity list lint: checks that all read signals are in process(...) sensitivity lists for combinatorial processes, and that clock/reset signals used in rising_edge()/falling_edge() are listed for synchronous processes #42
• Skips process (all) (VHDL-2008) and processes without sensitivity lists
• Hint for unnecessary signals in sensitivity list displayed directly on the variable name with DiagnosticTag.Unnecessary

Fixed

• checkSemicolon now handles comma-separated port declarations like y, q : out std_logic — no more false "Missing ';'"
• port(...) regex now correctly matches types with parentheses like std_logic_vector(N-1 downto 0) #55
• Syntax linter no longer produces false "Missing ';'" on generics type keywords (positive, natural, integer, etc.) and multi-line assert/report/severity blocks #56

v0.10.22026-06-04

Added

• Package variable hover now shows declared value when available (e.g. integer := 50000000) #54
• Added validation and error handling for maxv.quartusPath: fs.existsSync() check, path.normalize(), try/catch around spawn, and improved error messages #47

Fixed

• Removed trailing \\quartus from maxv.quartusPath setting description to avoid confusion

Removed

• Removed quartus-assistant.setQuartusPath command — replaced by VS Code's built-in settings UI #50

v0.10.12026-06-03

Fixed

• Ctrl+/ now inserts -- line comment instead of /**/ block comment in VHDL files #46

v0.10.02026-06-03

Added

• Real-time VHDL syntax checking — validates scopes (if/end if, process/end process, for...loop/end loop, etc.), missing semicolons, wrong loop termination (end while instead of end loop), and stray end keywords #38
• Diagnostics appear in the Problems panel with 400ms debounce — no configuration needed

Documentation

• Updated README with syntax checking feature section and screenshot

v0.9.12026-06-03

Fixed

• Output channel now cleared on simulation start — logs from previous build/flash no longer mixed with simulation output #24
• Port lint no longer calls findFiles + QSF parsing on every keystroke; result is cached and re-parsed only when .qsf is saved #23

Refactored

• Consolidated duplicate file watchers in qsfViewService: replaced redundant createFileSystemWatcher + workspace event listeners with a single watcher using onDidCreate / onDidChange / onDidDelete #16
• Split quartusLogger.ts into logger/ folder: output channel management, task lifecycle, and TCL output parsing are now in separate modules
• Extracted tree node classes (PinAssignmentsNode, TestBenchesNode, QuestaScriptsNode) from qsfTabProvider.ts into dedicated treeNodes.ts #17

v0.9.02026-06-02

Added

• Added duplicate pin and signal assignment detection for QSF files
• Same PIN_xx assigned to multiple signals → Error diagnostic
• Same signal assigned to multiple pins → Warning diagnostic

Fixed

• Replaced any type with PinAssignment interface in QSF tab provider

Changed

• Renamed buildStatus → taskStatus and startBuild → startTask in runner and status bar
• Enabled strict TypeScript flags and resolved unused variables
• Translated remaining Italian comments to English

v0.8.42026-05-29

Changed

• Rebranded extension from Quartus Assistant to VHDL Essentials

v0.8.32026-05-29

Improved

• Improved source parsing for local declarations inside architectures and processes.
• Added support for port direction visualization (in, out, inout, buffer) in hover information.
• Enhanced IntelliSense foundations for future navigation and symbol indexing features.

Feature

• Added semantic hover support for VHDL variables, signals, constants and entity ports.
• Hover tooltips now display symbol kind, type information and declaration preview.
• Added contextual hover rendering with syntax-highlighted VHDL code blocks. 

v0.8.22026-05-28

Fixed

• Fixed VHDL syntax highlighting not working in packaged .vsix builds
• Resolved missing grammar and language configuration files during extension packaging
• Moved syntaxes/ outside src/ to avoid .vscodeignore exclusion issues

v0.8.12026-05-28

Fixed

• Fixed VSCode engine compatibility mismatch during extension build.
• Aligned @types/vscode version with the declared engines.vscode requirement.

v0.8.02026-05-28

Feature

• Added native VHDL syntax highlighting support directly inside Quartus Assistant.
• The extension is now fully independent from external VHDL syntax extensions such as Modern VHDL.
• Added semantic highlighting for: * VHDL keywords and control statements * arithmetic, logical and assignment operators * entities, architectures, packages and components * signals, variables, constants and ports * process labels and instance labels * VHDL built-in functions and attributes * numeric literals and radix formats * time units (fs, ps, ns, us, ms, ...) * boolean literals (true, false) * parentheses and brackets
• Added custom TextMate grammar for VHDL source files.
• Improved readability and editing experience for large VHDL projects.

v0.7.02026-05-27

v0.6.12026-05-27

Feature

• VHDL packages are now automatically discovered and indexed across the workspace.
• Added **Go to Definition** support for VHDL packages.
• You can now Ctrl+Click on package references declared with: ``vhdl use work.<package>.all; ` and jump directly to the corresponding package declaration. * Added **Go to Definition** support for symbols declared inside VHDL packages. * You can now navigate to declarations of: * constants * types * subtypes * signals * functions * procedures imported through: `vhdl use work.<package>.all; `` * Added semantic highlighting for: * package references * package symbols imported from workspace packages

v0.6.02026-05-26

Feature

• Added **Go to Definition** support for VHDL entity instantiations.
• You can now Ctrl+Click on entities instantiated with: ``vhdl entity work.<name> `` and jump directly to the corresponding entity declaration in the workspace.
• Added semantic highlighting for VHDL entities.
• Entity names are highlighted only when a valid declaration exists in the workspace index.
• Introduced automatic indexing of VHDL entities (.vhd, .vhdl).
• The index is updated automatically when: * VHDL files are saved * files are created * files are deleted

v0.5.32026-05-26

Improved

• Generate .do files directly by clicking a testbench in the panel view
• Prompt user before overwriting existing .do files

v0.5.12026-05-22

Fixed

• Minor fix of v0.5.0

v0.5.02026-05-22

Improved

• Improved TreeView display using workspace-relative paths instead of absolute paths
• Improved VHDL top-level entity parsing and lookup
• Refactored simulation execution logic for reusable command-based invocation
• Improved cross-platform file path handling using fsPath
• Improved extension stability when launching detached QuestaSim GUI processes

Feature

• Added integrated QuestaSim .do launcher
• Added QuickPick selection for simulation scripts
• Added automatic QuestaSim GUI startup from VS Code
• Added support for launching simulations directly from the Quartus Assistant view
• Added automatic workspace-relative .do file discovery
• Added top-level entity source file detection from VHDL entity declarations
• Added project-aware simulation execution using workspace root as working directory

v0.4.22026-05-21

Improved

• When generting .do now add only testbench waves

v0.4.12026-05-20

Fixed

• Fix order of dependencies auto imported on .do file

v0.4.02026-05-20

Feature

• New command implemented: "Generate QuestaSim .do" file
• Auto search into project if there are testbench files
• Auto search for dependencies of the test bench
• Auto-Generation of .do file ready to be executed on questasim

v0.3.22026-05-19

Feature

• Implemented new parser for top level entity ports
• Implemented lint warning on top level entity port that are missing on .qsf
• Implemented syntax highlighting for questasim .do files

v0.3.12026-05-18

Improved

• Improved logger, now stamp better info of the Error

v0.3.02026-05-15

v0.2.02026-05-14

Fixed

• Fixed duplicated output channels on multiple builds
• Fixed output panel not automatically opening during tasks
• Fixed inconsistent status bar updates
• Fixed project visibility refresh after workspace changes

Improved

• Refactored extension architecture into modular components
• Improved command separation and maintainability
• Improved Quartus process handling
• Improved status bar management
• Improved logging system reliability
• Improved workspace event handling
• Improved extension scalability for future features

v0.1.02026-05-08

Added

• Compile Quartus projects directly from VS Code
• Flash CPLDs from inside the editor
• Support for .qpf and .qsf files
• Syntax highlighting for Quartus project files

First public release