From 9e0e5c0e0b35eea793af5639a377f5d899b971f3 Mon Sep 17 00:00:00 2001
From: Jon Sully <jon@sul.ly>
Date: Sun, 30 Jul 2023 21:06:51 +0100
Subject: [PATCH] LSP: Add Go To Definition support for `Ast::ModuleAccess`

---
 .../module_access_component_constant          | 83 ++++++++++++++++++
 .../module_access_component_function          | 81 ++++++++++++++++++
 .../module_access_component_gets              | 85 +++++++++++++++++++
 .../module_access_component_name              | 81 ++++++++++++++++++
 .../module_access_component_state             | 83 ++++++++++++++++++
 .../module_access_module_constant             | 79 +++++++++++++++++
 .../module_access_module_function             | 81 ++++++++++++++++++
 .../location_link/module_access_module_name   | 81 ++++++++++++++++++
 .../module_access_store_constant              | 79 +++++++++++++++++
 .../module_access_store_function              | 81 ++++++++++++++++++
 .../location_link/module_access_store_gets    | 81 ++++++++++++++++++
 .../location_link/module_access_store_name    | 81 ++++++++++++++++++
 .../location_link/module_access_store_state   | 79 +++++++++++++++++
 src/ls/definition/module_access.cr            | 20 +++++
 src/ls/definition/type_id.cr                  |  3 +-
 src/parsers/connect_variable.cr               |  2 +-
 src/parsers/constant_access.cr                |  4 +-
 src/parsers/constant_variable.cr              | 24 ------
 src/parsers/variable.cr                       |  8 +-
 19 files changed, 1086 insertions(+), 30 deletions(-)
 create mode 100644 spec/language_server/definition/location_link/module_access_component_constant
 create mode 100644 spec/language_server/definition/location_link/module_access_component_function
 create mode 100644 spec/language_server/definition/location_link/module_access_component_gets
 create mode 100644 spec/language_server/definition/location_link/module_access_component_name
 create mode 100644 spec/language_server/definition/location_link/module_access_component_state
 create mode 100644 spec/language_server/definition/location_link/module_access_module_constant
 create mode 100644 spec/language_server/definition/location_link/module_access_module_function
 create mode 100644 spec/language_server/definition/location_link/module_access_module_name
 create mode 100644 spec/language_server/definition/location_link/module_access_store_constant
 create mode 100644 spec/language_server/definition/location_link/module_access_store_function
 create mode 100644 spec/language_server/definition/location_link/module_access_store_gets
 create mode 100644 spec/language_server/definition/location_link/module_access_store_name
 create mode 100644 spec/language_server/definition/location_link/module_access_store_state
 create mode 100644 src/ls/definition/module_access.cr
 delete mode 100644 src/parsers/constant_variable.cr

diff --git a/spec/language_server/definition/location_link/module_access_component_constant b/spec/language_server/definition/location_link/module_access_component_constant
new file mode 100644
index 000000000..01d5a2dda
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_component_constant
@@ -0,0 +1,83 @@
+global component Header {
+  const TITLE = "Mint"
+
+  fun render : Html {
+    <div/>
+  }
+}
+----------------------------------------------------------------file header.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header:TITLE }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/header.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 1,
+        "character": 22
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 8
+      },
+      "end": {
+        "line": 1,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_component_function b/spec/language_server/definition/location_link/module_access_component_function
new file mode 100644
index 000000000..0b029b2aa
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_component_function
@@ -0,0 +1,81 @@
+global component Header {
+  fun render : Html {
+    <div/>
+  }
+}
+----------------------------------------------------------------file header.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.render() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 22
+      }
+    },
+    "targetUri": "file://#{root_path}/header.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 3,
+        "character": 3
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 6
+      },
+      "end": {
+        "line": 1,
+        "character": 12
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_component_gets b/spec/language_server/definition/location_link/module_access_component_gets
new file mode 100644
index 000000000..2555b6ee1
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_component_gets
@@ -0,0 +1,85 @@
+global component Header {
+  get title : String {
+    "Mint"
+  }
+
+  fun render : Html {
+    <div/>
+  }
+}
+----------------------------------------------------------------file header.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/header.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 5,
+        "character": 2
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 6
+      },
+      "end": {
+        "line": 1,
+        "character": 11
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_component_name b/spec/language_server/definition/location_link/module_access_component_name
new file mode 100644
index 000000000..b669f0b49
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_component_name
@@ -0,0 +1,81 @@
+global component Header {
+  fun render : Html {
+    <div/>
+  }
+}
+----------------------------------------------------------------file header.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.render() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 9
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 9
+      },
+      "end": {
+        "line": 3,
+        "character": 15
+      }
+    },
+    "targetUri": "file://#{root_path}/header.mint",
+    "targetRange": {
+      "start": {
+        "line": 0,
+        "character": 0
+      },
+      "end": {
+        "line": 4,
+        "character": 1
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 0,
+        "character": 17
+      },
+      "end": {
+        "line": 0,
+        "character": 23
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_component_state b/spec/language_server/definition/location_link/module_access_component_state
new file mode 100644
index 000000000..1208ef692
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_component_state
@@ -0,0 +1,83 @@
+global component Header {
+  state title = "Mint"
+
+  fun render : Html {
+    <div/>
+  }
+}
+----------------------------------------------------------------file header.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/header.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 1,
+        "character": 22
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 8
+      },
+      "end": {
+        "line": 1,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_module_constant b/spec/language_server/definition/location_link/module_access_module_constant
new file mode 100644
index 000000000..6896b0322
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_module_constant
@@ -0,0 +1,79 @@
+module Header {
+  const TITLE = "Mint"
+}
+----------------------------------------------------------------file module.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header:TITLE }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/module.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 1,
+        "character": 22
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 8
+      },
+      "end": {
+        "line": 1,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_module_function b/spec/language_server/definition/location_link/module_access_module_function
new file mode 100644
index 000000000..5488f5465
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_module_function
@@ -0,0 +1,81 @@
+module Header {
+  fun title : String {
+    "Mint"
+  }
+}
+----------------------------------------------------------------file module.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/module.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 3,
+        "character": 3
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 6
+      },
+      "end": {
+        "line": 1,
+        "character": 11
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_module_name b/spec/language_server/definition/location_link/module_access_module_name
new file mode 100644
index 000000000..8b86b1571
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_module_name
@@ -0,0 +1,81 @@
+module Header {
+  fun title : String {
+    "Mint"
+  }
+}
+----------------------------------------------------------------file module.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 9
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 9
+      },
+      "end": {
+        "line": 3,
+        "character": 15
+      }
+    },
+    "targetUri": "file://#{root_path}/module.mint",
+    "targetRange": {
+      "start": {
+        "line": 0,
+        "character": 0
+      },
+      "end": {
+        "line": 4,
+        "character": 1
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 0,
+        "character": 7
+      },
+      "end": {
+        "line": 0,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_store_constant b/spec/language_server/definition/location_link/module_access_store_constant
new file mode 100644
index 000000000..4fbb6fb7b
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_store_constant
@@ -0,0 +1,79 @@
+store Header {
+  const TITLE = "Mint"
+}
+-----------------------------------------------------------------file store.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header:TITLE }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/store.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 1,
+        "character": 22
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 8
+      },
+      "end": {
+        "line": 1,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_store_function b/spec/language_server/definition/location_link/module_access_store_function
new file mode 100644
index 000000000..169011196
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_store_function
@@ -0,0 +1,81 @@
+store Header {
+  fun title : String {
+    "Mint"
+  }
+}
+-----------------------------------------------------------------file store.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/store.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 3,
+        "character": 3
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 6
+      },
+      "end": {
+        "line": 1,
+        "character": 11
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_store_gets b/spec/language_server/definition/location_link/module_access_store_gets
new file mode 100644
index 000000000..15b5e99be
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_store_gets
@@ -0,0 +1,81 @@
+store Header {
+  get title : String {
+    "Mint"
+  }
+}
+-----------------------------------------------------------------file store.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/store.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 4,
+        "character": 0
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 6
+      },
+      "end": {
+        "line": 1,
+        "character": 11
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_store_name b/spec/language_server/definition/location_link/module_access_store_name
new file mode 100644
index 000000000..96c9eb66e
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_store_name
@@ -0,0 +1,81 @@
+store Header {
+  fun title : String {
+    "Mint"
+  }
+}
+-----------------------------------------------------------------file store.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title() }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 9
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 9
+      },
+      "end": {
+        "line": 3,
+        "character": 15
+      }
+    },
+    "targetUri": "file://#{root_path}/store.mint",
+    "targetRange": {
+      "start": {
+        "line": 0,
+        "character": 0
+      },
+      "end": {
+        "line": 4,
+        "character": 1
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 0,
+        "character": 6
+      },
+      "end": {
+        "line": 0,
+        "character": 12
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/spec/language_server/definition/location_link/module_access_store_state b/spec/language_server/definition/location_link/module_access_store_state
new file mode 100644
index 000000000..b473d6795
--- /dev/null
+++ b/spec/language_server/definition/location_link/module_access_store_state
@@ -0,0 +1,79 @@
+store Header {
+  state title = "Mint"
+}
+-----------------------------------------------------------------file store.mint
+component Test {
+  fun render : Html {
+    <div>
+      <{ Header.title }>
+    </div>
+  }
+}
+------------------------------------------------------------------file test.mint
+{
+  "id": 0,
+  "method": "initialize",
+  "params": {
+    "capabilities": {
+      "textDocument": {
+        "definition": {
+          "linkSupport": true
+        }
+      }
+    }
+  }
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "params": {
+    "textDocument": {
+      "uri": "file://#{root_path}/test.mint"
+    },
+    "position": {
+      "line": 3,
+      "character": 16
+    }
+  },
+  "method": "textDocument/definition"
+}
+-------------------------------------------------------------------------request
+{
+  "jsonrpc": "2.0",
+  "result": {
+    "originSelectionRange": {
+      "start": {
+        "line": 3,
+        "character": 16
+      },
+      "end": {
+        "line": 3,
+        "character": 21
+      }
+    },
+    "targetUri": "file://#{root_path}/store.mint",
+    "targetRange": {
+      "start": {
+        "line": 1,
+        "character": 2
+      },
+      "end": {
+        "line": 1,
+        "character": 22
+      }
+    },
+    "targetSelectionRange": {
+      "start": {
+        "line": 1,
+        "character": 8
+      },
+      "end": {
+        "line": 1,
+        "character": 13
+      }
+    }
+  },
+  "id": 1
+}
+------------------------------------------------------------------------response
diff --git a/src/ls/definition/module_access.cr b/src/ls/definition/module_access.cr
new file mode 100644
index 000000000..6a67c510d
--- /dev/null
+++ b/src/ls/definition/module_access.cr
@@ -0,0 +1,20 @@
+module Mint
+  module LS
+    class Definition < LSP::RequestMessage
+      def definition(node : Ast::ModuleAccess, server : Server, workspace : Workspace, stack : Array(Ast::Node))
+        lookup = workspace.type_checker.lookups[node.variable]?
+
+        if lookup
+          case lookup
+          when Ast::Property,
+               Ast::Constant,
+               Ast::Function,
+               Ast::State,
+               Ast::Get
+            location_link server, node.variable, lookup.name, lookup
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/src/ls/definition/type_id.cr b/src/ls/definition/type_id.cr
index eed5a2a24..7471dcb30 100644
--- a/src/ls/definition/type_id.cr
+++ b/src/ls/definition/type_id.cr
@@ -6,6 +6,7 @@ module Mint
           workspace.ast.enums.find(&.name.value.==(node.value)) ||
             workspace.ast.records.find(&.name.value.==(node.value)) ||
             workspace.ast.stores.find(&.name.value.==(node.value)) ||
+            workspace.ast.modules.find(&.name.value.==(node.value)) ||
             find_component(workspace, node.value)
 
         if found.nil? && (next_node = stack[1])
@@ -15,7 +16,7 @@ module Mint
         return if Core.ast.nodes.includes?(found)
 
         case found
-        when Ast::Store, Ast::Enum, Ast::Component, Ast::RecordDefinition
+        when Ast::Store, Ast::Enum, Ast::Component, Ast::RecordDefinition, Ast::Module
           location_link server, node, found.name, found
         end
       end
diff --git a/src/parsers/connect_variable.cr b/src/parsers/connect_variable.cr
index 62f195174..d1ab6cc7f 100644
--- a/src/parsers/connect_variable.cr
+++ b/src/parsers/connect_variable.cr
@@ -4,7 +4,7 @@ module Mint
 
     def connect_variable
       start do |start_position|
-        value = variable(track: false) || constant_variable
+        value = variable(track: false) || variable_constant
 
         next unless value
 
diff --git a/src/parsers/constant_access.cr b/src/parsers/constant_access.cr
index d981a66fe..06df8587b 100644
--- a/src/parsers/constant_access.cr
+++ b/src/parsers/constant_access.cr
@@ -11,11 +11,11 @@ module Mint
         next unless name
 
         variable =
-          constant_variable
+          variable_constant
 
         next unless variable
 
-        Ast::ModuleAccess.new(
+        self << Ast::ModuleAccess.new(
           from: start_position,
           variable: variable,
           constant: true,
diff --git a/src/parsers/constant_variable.cr b/src/parsers/constant_variable.cr
deleted file mode 100644
index 24fde43d6..000000000
--- a/src/parsers/constant_variable.cr
+++ /dev/null
@@ -1,24 +0,0 @@
-module Mint
-  class Parser
-    def constant_variable : Ast::Variable?
-      start do |start_position|
-        head =
-          gather { chars &.ascii_uppercase? }
-
-        tail =
-          gather { chars { |char| char.ascii_uppercase? || char.ascii_number? || char == '_' } }
-
-        next unless head || tail
-
-        name =
-          "#{head}#{tail}"
-
-        Ast::Variable.new(
-          from: start_position,
-          to: position,
-          input: data,
-          value: name)
-      end
-    end
-  end
-end
diff --git a/src/parsers/variable.cr b/src/parsers/variable.cr
index 21ba86fcf..7042da0c1 100644
--- a/src/parsers/variable.cr
+++ b/src/parsers/variable.cr
@@ -43,7 +43,7 @@ module Mint
       end
     end
 
-    def variable_constant! : Ast::Variable
+    def variable_constant : Ast::Variable?
       start do |start_position|
         head =
           gather { chars &.ascii_uppercase? }
@@ -51,7 +51,7 @@ module Mint
         tail =
           gather { chars { |char| char.ascii_uppercase? || char.ascii_number? || char == '_' } }
 
-        raise ConstantExpectedName unless head
+        next unless head
 
         value = "#{head}#{tail}"
 
@@ -63,6 +63,10 @@ module Mint
       end
     end
 
+    def variable_constant! : Ast::Variable
+      variable_constant || raise ConstantExpectedName
+    end
+
     def variable!(error : SyntaxError.class, track = true) : Ast::Variable
       variable(track) || raise error
     end