Revert "Revert "handle constant equations in preprocessor""
This reverts commit 850d1dcc95
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time-shift
parent
c544f4a02c
commit
4c64b9108a
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@ -1,16 +1,14 @@
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function [ast, ds] = handle_constant_eqs(ast, ds)
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%function [ast, ds] = handle_constant_eqs(ast, ds)
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function ast = handle_constant_eqs(ast)
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%function ast = handle_constant_eqs(ast)
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%
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% Code to handle equations of type `X = 0;` in AST. Returns equation(s)
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% removed from AST and ds.X == 0.
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% removed from AST.
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%
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% INPUTS
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% ast [cell array] JSON representation of abstract syntax tree
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% ds [dseries] data to be updated
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%
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% OUTPUTS
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% ast [cell array] updated JSON representation of abstract syntax tree
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% ds [dseries] data to be updated
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%
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% SPECIAL REQUIREMENTS
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% none
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@ -32,7 +30,7 @@ function [ast, ds] = handle_constant_eqs(ast, ds)
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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if nargin ~= 2
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if nargin ~= 1
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error('Incorrect number of arguments to function')
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end
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@ -40,18 +38,12 @@ if isempty(ast) || ~iscell(ast)
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error('ast must be a cell')
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end
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if isempty(ds) || ~isdseries(ds)
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error('ds must be a nonempty dseries')
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end
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for i = length(ast):-1:1
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assert(strcmp(ast{i}.AST.node_type, 'BinaryOpNode') && strcmp(ast{i}.AST.op, '='), 'Expecting equation');
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if strcmp(ast{i}.AST.arg2.node_type, 'NumConstNode')
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if ~strcmp(ast{i}.AST.arg1.node_type, 'VariableNode')
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error('At the moment only handling Variable Nodes on LHS')
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end
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ds.(ast{i}.AST.arg1.name) = ...
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dseries(ast{i}.AST.arg2.value*ones(ds.nobs, 1), ds.firstdate, ast{i}.AST.arg1.name);
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ast = ast([1:i-1, i+1:end]);
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end
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end
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@ -59,8 +59,7 @@ else
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end
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%% Get Equation(s)
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ast = get_ast(eqtags);
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[ast, ds] = handle_constant_eqs(ast, ds);
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ast = handle_constant_eqs(get_ast(eqtags));
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neqs = length(ast);
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%% Find parameters and variable names in equations and setup estimation matrices
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@ -1 +1 @@
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Subproject commit c5fc2e38c1361aef5820f91a4b1d0375e97f3af9
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Subproject commit 1e071ca499c30b4e112d1ee032181f27057ef46c
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