Shader: Add compiler and AST errors (WIP)

I'm so afraid to lose all this work

src/Nazara/Shader/Ast/AstConstantPropagationVisitor.cpp

@@ -811,6 +811,7 @@ namespace Nz::ShaderAst
 
 		auto binary = ShaderBuilder::Binary(node.op, std::move(lhs), std::move(rhs));
 		binary->cachedExpressionType = node.cachedExpressionType;
+		binary->sourceLocation = node.sourceLocation;
 
 		return binary;
 	}
@@ -931,6 +932,7 @@ namespace Nz::ShaderAst
 		
 		auto cast = ShaderBuilder::Cast(node.targetType.GetResultingValue(), std::move(expressions));
 		cast->cachedExpressionType = node.cachedExpressionType;
+		cast->sourceLocation = node.sourceLocation;
 
 		return cast;
 	}
@@ -996,7 +998,10 @@ namespace Nz::ShaderAst
 		if (!elseStatement)
 			elseStatement = CloneStatement(node.elseStatement);
 
-		return ShaderBuilder::Branch(std::move(statements), std::move(elseStatement));
+		auto branchStatement = ShaderBuilder::Branch(std::move(statements), std::move(elseStatement));
+		branchStatement->sourceLocation = node.sourceLocation;
+
+		return branchStatement;
 	}
 
 	ExpressionPtr AstConstantPropagationVisitor::Clone(ConditionalExpression& node)
@@ -1031,6 +1036,7 @@ namespace Nz::ShaderAst
 
 		auto constant = ShaderBuilder::Constant(*constantValue);
 		constant->cachedExpressionType = GetConstantType(constant->value);
+		constant->sourceLocation = node.sourceLocation;
 
 		return constant;
 	}
@@ -1082,6 +1088,7 @@ namespace Nz::ShaderAst
 
 		auto swizzle = ShaderBuilder::Swizzle(std::move(expr), node.components, node.componentCount);
 		swizzle->cachedExpressionType = node.cachedExpressionType;
+		swizzle->sourceLocation = node.sourceLocation;
 
 		return swizzle;
 	}
@@ -1116,6 +1123,7 @@ namespace Nz::ShaderAst
 
 		auto unary = ShaderBuilder::Unary(node.op, std::move(expr));
 		unary->cachedExpressionType = node.cachedExpressionType;
+		unary->sourceLocation = node.sourceLocation;
 
 		return unary;
 	}

src/Nazara/Shader/Ast/AstReflect.cpp

@@ -21,7 +21,7 @@ namespace Nz::ShaderAst
 			m_callbacks->onAliasDeclaration(node);
 
 		if (m_callbacks->onAliasIndex && node.aliasIndex)
-			m_callbacks->onAliasIndex(node.name, *node.aliasIndex);
+			m_callbacks->onAliasIndex(node.name, *node.aliasIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -33,7 +33,7 @@ namespace Nz::ShaderAst
 			m_callbacks->onConstDeclaration(node);
 
 		if (m_callbacks->onConstIndex && node.constIndex)
-			m_callbacks->onConstIndex(node.name, *node.constIndex);
+			m_callbacks->onConstIndex(node.name, *node.constIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -49,7 +49,7 @@ namespace Nz::ShaderAst
 			for (const auto& extVar : node.externalVars)
 			{
 				if (extVar.varIndex)
-					m_callbacks->onVariableIndex(extVar.name, *extVar.varIndex);
+					m_callbacks->onVariableIndex(extVar.name, *extVar.varIndex, extVar.sourceLocation);
 			}
 		}
 
@@ -76,7 +76,7 @@ namespace Nz::ShaderAst
 			for (const auto& parameter : node.parameters)
 			{
 				if (parameter.varIndex)
-					m_callbacks->onVariableIndex(parameter.name, *parameter.varIndex);
+					m_callbacks->onVariableIndex(parameter.name, *parameter.varIndex, parameter.sourceLocation);
 			}
 		}
 
@@ -90,7 +90,7 @@ namespace Nz::ShaderAst
 			m_callbacks->onOptionDeclaration(node);
 
 		if (m_callbacks->onOptionIndex && node.optIndex)
-			m_callbacks->onOptionIndex(node.optName, *node.optIndex);
+			m_callbacks->onOptionIndex(node.optName, *node.optIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -102,7 +102,7 @@ namespace Nz::ShaderAst
 			m_callbacks->onStructDeclaration(node);
 
 		if (m_callbacks->onStructIndex && node.structIndex)
-			m_callbacks->onStructIndex(node.description.name, *node.structIndex);
+			m_callbacks->onStructIndex(node.description.name, *node.structIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -114,7 +114,7 @@ namespace Nz::ShaderAst
 			m_callbacks->onVariableDeclaration(node);
 
 		if (m_callbacks->onVariableIndex && node.varIndex)
-			m_callbacks->onVariableIndex(node.varName, *node.varIndex);
+			m_callbacks->onVariableIndex(node.varName, *node.varIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -123,7 +123,7 @@ namespace Nz::ShaderAst
 	{
 		assert(m_callbacks);
 		if (m_callbacks->onVariableIndex && node.varIndex)
-			m_callbacks->onVariableIndex(node.varName, *node.varIndex);
+			m_callbacks->onVariableIndex(node.varName, *node.varIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}
@@ -132,7 +132,7 @@ namespace Nz::ShaderAst
 	{
 		assert(m_callbacks);
 		if (m_callbacks->onVariableIndex && node.varIndex)
-			m_callbacks->onVariableIndex(node.varName, *node.varIndex);
+			m_callbacks->onVariableIndex(node.varName, *node.varIndex, node.sourceLocation);
 
 		AstRecursiveVisitor::Visit(node);
 	}