From 81b5ccee50b34976d8e611af6815110bc10496f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Przemys=C5=82aw=20Pluta?=
 <noreply.git@mx.bartlomiejpluta.com>
Date: Fri, 6 Mar 2020 21:55:54 +0100
Subject: [PATCH] Migrate function definition parser to Kotlin

---
 .../node/FunctionDefinitionArgumentsNode.kt   |  5 +++++
 .../ast/model/node/FunctionDefinitionNode.kt  | 20 +++++++++++++++++++
 .../FunctionDefinitionArgumentParser.kt       | 13 ++++++++++++
 .../FunctionDefinitionArgumentsParser.kt      |  8 ++++++++
 .../ast/parser/FunctionDefinitionParser.kt    | 19 ++++++++++++++++++
 5 files changed, 65 insertions(+)
 create mode 100644 src/main/kotlin/dsl/ast/model/node/FunctionDefinitionArgumentsNode.kt
 create mode 100644 src/main/kotlin/dsl/ast/model/node/FunctionDefinitionNode.kt
 create mode 100644 src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentParser.kt
 create mode 100644 src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentsParser.kt
 create mode 100644 src/main/kotlin/dsl/ast/parser/FunctionDefinitionParser.kt

diff --git a/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionArgumentsNode.kt b/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionArgumentsNode.kt
new file mode 100644
index 0000000..839b6b6
--- /dev/null
+++ b/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionArgumentsNode.kt
@@ -0,0 +1,5 @@
+package dsl.ast.model.node
+
+import dsl.token.model.entity.TokenPosition
+
+class FunctionDefinitionArgumentsNode(items: List<Node>, position: TokenPosition) : AbstractIterableNode(items, position)
\ No newline at end of file
diff --git a/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionNode.kt b/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionNode.kt
new file mode 100644
index 0000000..3d92df7
--- /dev/null
+++ b/src/main/kotlin/dsl/ast/model/node/FunctionDefinitionNode.kt
@@ -0,0 +1,20 @@
+package dsl.ast.model.node
+
+import dsl.token.model.entity.TokenPosition
+
+class FunctionDefinitionNode(identifier: Node, arguments: Node, body: Node, position: TokenPosition) : Node(3, position) {
+    val identifier: Node
+    get() = children[0]
+
+    val arguments: Node
+    get() = children[1]
+
+    val body: Node
+    get() = children[2]
+
+    init {
+        children[0] = identifier
+        children[1] = arguments
+        children[2] = body
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentParser.kt b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentParser.kt
new file mode 100644
index 0000000..2a8f8d0
--- /dev/null
+++ b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentParser.kt
@@ -0,0 +1,13 @@
+package dsl.ast.parser
+
+import dsl.ast.model.entity.ParserOutput
+import dsl.token.model.entity.TokenList
+
+class FunctionDefinitionArgumentParser : Parser() {
+    override fun tryToParse(input: TokenList): ParserOutput {
+        return oneOf(listOf(
+            OptionalFunctionDefinitionArgumentParser(),
+            RegularFunctionDefinitionArgumentParser()
+        )).parse(input)
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentsParser.kt b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentsParser.kt
new file mode 100644
index 0000000..8266520
--- /dev/null
+++ b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionArgumentsParser.kt
@@ -0,0 +1,8 @@
+package dsl.ast.parser
+
+import dsl.ast.model.node.FunctionDefinitionArgumentsNode
+import dsl.token.model.enumeration.TokenType
+
+class FunctionDefinitionArgumentsParser : AbstractIterableParser(TokenType.OPEN_PAREN, FunctionDefinitionArgumentParser(), TokenType.CLOSE_PAREN, {
+    list, tokenPosition -> FunctionDefinitionArgumentsNode(list,  tokenPosition)
+})
\ No newline at end of file
diff --git a/src/main/kotlin/dsl/ast/parser/FunctionDefinitionParser.kt b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionParser.kt
new file mode 100644
index 0000000..76e8437
--- /dev/null
+++ b/src/main/kotlin/dsl/ast/parser/FunctionDefinitionParser.kt
@@ -0,0 +1,19 @@
+package dsl.ast.parser
+
+import dsl.ast.model.entity.ParserOutput
+import dsl.ast.model.node.FunctionDefinitionNode
+import dsl.token.model.entity.TokenList
+import dsl.token.model.enumeration.TokenType
+
+class FunctionDefinitionParser : Parser() {
+    override fun tryToParse(input: TokenList): ParserOutput {
+        return allOf(listOf(
+            terminal(TokenType.FUNCTION),
+            assert(SimpleIdentifierParser(), "function/method name"),
+            assert(FunctionDefinitionArgumentsParser(), "function/method arguments list"),
+            assert(BlockParser(), "function/method body")
+        )) {
+            FunctionDefinitionNode(it[1], it[2], it[3], it[0].position)
+        }.parse(input)
+    }
+}
\ No newline at end of file