/// <summary>
/// Вход в предложение объявления переменной.
/// </summary>
/// <param name="context">Контекст.</param>
public override void EnterDeclareVariableStatement([NotNull] IsblParser.DeclareVariableStatementContext context)
{
// Первый потомок переменная.
var variable = context.GetChild(0) as IsblParser.VariableContext;
if (variable == null)
{
return;
}
var variableName = variable.GetText();
var variableDefinition = this.variableDefinitions
.FirstOrDefault(d => d.VariableName.Equals(variableName, StringComparison.OrdinalIgnoreCase));
if (variableDefinition == null)
{
variableDefinition = new VariableDefiniton
{
VariableName = variableName,
IsReinitialized = false,
StatementBlock = GetParentStatementBlock(context)
};
this.variableDefinitions.Add(variableDefinition);
}
else if (variableDefinition.StatementBlock == null)
{
variableDefinition.IsReinitialized = true;
variableDefinition.StatementBlock = GetParentStatementBlock(context);
}
}
/// <summary>
/// Вход в предложение означивания.
/// </summary>
/// <param name="context">Контекст.</param>
public override void EnterAssignStatement([NotNull] IsblParser.AssignStatementContext context)
{
// Первый потомок переменная.
var variable = context.GetChild(0) as IsblParser.VariableContext;
if (variable == null)
{
return;
}
// Второй потомок знак равенства или двоеточие.
var eq = context.GetChild(1) as TerminalNodeImpl;
if (eq == null ||
(eq.Symbol.Type != IsblParser.EQ &&
eq.Symbol.Type != IsblParser.COLON))
{
return;
}
var variableName = variable.GetText();
var variableDefinition = this.variableDefinitions
.FirstOrDefault(d => d.VariableName.Equals(variableName, StringComparison.OrdinalIgnoreCase));
if (variableDefinition == null)
{
variableDefinition = new VariableDefiniton
{
VariableName = variableName,
IsReinitialized = false,
StatementBlock = GetParentStatementBlock(context)
};
this.variableDefinitions.Add(variableDefinition);
}
else if (variableDefinition.StatementBlock == null)
{
variableDefinition.IsReinitialized = true;
variableDefinition.StatementBlock = GetParentStatementBlock(context);
}
}
/// <summary>
/// Вход в foreach.
/// </summary>
/// <param name="context">Контекст.</param>
public override void EnterForeachStatement([NotNull] IsblParser.ForeachStatementContext context)
{
var variable = context.GetChild(1) as IsblParser.VariableContext;
var variableName = variable.GetText();
var variableDefinition = this.variableDefinitions
.FirstOrDefault(d => d.VariableName.Equals(variableName, StringComparison.OrdinalIgnoreCase));
if (variableDefinition == null)
{
variableDefinition = new VariableDefiniton
{
VariableName = variableName,
IsReinitialized = false,
StatementBlock = context.GetChild(4) as IsblParser.StatementBlockContext
};
this.variableDefinitions.Add(variableDefinition);
}
else if (variableDefinition.StatementBlock == null)
{
variableDefinition.IsReinitialized = true;
variableDefinition.StatementBlock = context.GetChild(4) as IsblParser.StatementBlockContext;
}
}
