1 files changed, 69 insertions, 1 deletions
diff --git a/src/main/scala/scalam/m/ast/expressions.scala b/src/main/scala/scalam/m/ast/expressions.scala
index db99ae6..81e048e 100644
--- a/src/main/scala/scalam/m/ast/expressions.scala
+++ b/src/main/scala/scalam/m/ast/expressions.scala
@@ -1,6 +1,10 @@
 package scalam.m.ast
 
-trait Expression extends Mable with Root{
+/**
+ * Represents a matlab expression.
+ * @define construct expression
+ */
+trait Expression extends Mable with Root {
   def m: String = this match {
     case IntLiteral(x) => x.toString
     case DoubleLiteral(x) => x.toString
@@ -18,13 +22,77 @@ trait Expression extends Mable with Root{
   }
 }
 
+/**
+ * A matlab integer literal.
+ * @define construct integer literal
+ */
 case class IntLiteral(x: Int) extends Expression
+
+/**
+ * A matlab double literal.
+ * @define construct double literal
+ */
 case class DoubleLiteral(x: Double) extends Expression
+
+/**
+ * A matlab string literal.
+ * @define construct string literal
+ */
 case class StringLiteral(x: String) extends Expression
+
+/**
+ * The matlab slice literal (:).
+ * @define construct slice literal
+ */
 case object SliceLiteral extends Expression
+
+/**
+ * A matlab array or single-line matrix literal.
+ * @param elements elements of the array
+ *
+ * @define construct array literal
+ */
 case class ArrayLiteral(elements: Expression*) extends Expression
+
+/**
+ * A matlab matrix literal.
+ * @param rows rows of the matrix
+ *
+ * @define construct matrix literal
+ */
 case class MatrixLiteral(rows: Expression*) extends Expression
+
+/**
+ * A matlab variable access.
+ * @param id identifier ("variable name") of the variable
+ *
+ * @define construct variable access
+ */
 case class Variable(id: Identifier) extends Expression
+
+/**
+ * A matlab matrix access by index.
+ * @param id identifier of the variable to index
+ * @param indices indices
+ *
+ * @define construct matrix access by index
+ */
 case class IndexMatrix(id: Identifier, indices: Expression*) extends Expression
+
+/**
+ * A matlab structure access by index.
+ * @param id identifier of the variable to index
+ * @param indices indices
+ *
+ * @define construct structure access by index
+ */
 case class IndexStructure(id: Identifier, indices: Expression*) extends Expression
+
+/**
+ * A matlab function call.
+ * @param function identifier of the function
+ * @param params parameters to pass to function call
+ *
+ * @define construct function call
+ */
 case class Function(function: Identifier, params: Expression*) extends Expression
 \ No newline at end of file