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Issue#424 to make Expression::eval to be able to do error handle #669

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merged 6 commits into from
Aug 12, 2019
Merged

Issue#424 to make Expression::eval to be able to do error handle #669

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5393497
Issue#424 to make `Expression::eval` to be able to do error handl…
monadbobo Jul 22, 2019
f5b86b9
Merge https://github.com/vesoft-inc/nebula into expression_eval_error…
monadbobo Aug 5, 2019
0a45548
Merge https://github.com/vesoft-inc/nebula into expression3_eval_erro…
monadbobo Aug 7, 2019
e3f37c5
Merge https://github.com/vesoft-inc/nebula into expression_eval_error…
monadbobo Aug 8, 2019
060617c
1 reformat the code.
monadbobo Aug 9, 2019
3fd6adb
Merge branch 'master' into expression_eval_error_handling_issue424
dutor Aug 12, 2019
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248 changes: 146 additions & 102 deletions src/common/filter/Expressions.cpp
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47 changes: 24 additions & 23 deletions src/common/filter/Expressions.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
namespace nebula {

class Cord;
using OptVariantType = StatusOr<VariantType>;

enum ColumnType {
INT, STRING, DOUBLE, BIGINT, BOOL, TIMESTAMP,
Expand Down Expand Up @@ -123,12 +124,12 @@ class ExpressionContext final {
}

struct Getters {
std::function<VariantType()> getEdgeRank;
std::function<VariantType(const std::string&)> getEdgeProp;
std::function<VariantType(const std::string&)> getInputProp;
std::function<VariantType(const std::string&)> getVariableProp;
std::function<VariantType(const std::string&, const std::string&)> getSrcTagProp;
std::function<VariantType(const std::string&, const std::string&)> getDstTagProp;
std::function<OptVariantType()> getEdgeRank;
std::function<OptVariantType(const std::string&)> getEdgeProp;
std::function<OptVariantType(const std::string&)> getInputProp;
std::function<OptVariantType(const std::string&)> getVariableProp;
std::function<OptVariantType(const std::string&, const std::string&)> getSrcTagProp;
std::function<OptVariantType(const std::string&, const std::string&)> getDstTagProp;
};

Getters& getters() {
Expand Down Expand Up @@ -161,7 +162,7 @@ class Expression {

virtual Status MUST_USE_RESULT prepare() = 0;

virtual VariantType eval() const = 0;
virtual OptVariantType eval() const = 0;

virtual bool isInputExpression() const {
return kind_ == kInputProp;
Expand Down Expand Up @@ -329,7 +330,7 @@ class InputPropertyExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -362,7 +363,7 @@ class DestPropertyExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -392,7 +393,7 @@ class VariablePropertyExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -430,7 +431,7 @@ class EdgePropertyExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -467,7 +468,7 @@ class EdgeTypeExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -495,7 +496,7 @@ class EdgeSrcIdExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -523,7 +524,7 @@ class EdgeDstIdExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -551,7 +552,7 @@ class EdgeRankExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -580,7 +581,7 @@ class SourcePropertyExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -632,7 +633,7 @@ class PrimaryExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -678,7 +679,7 @@ class FunctionCallExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -721,7 +722,7 @@ class UnaryExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -760,7 +761,7 @@ class TypeCastingExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -809,7 +810,7 @@ class ArithmeticExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -860,7 +861,7 @@ class RelationalExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down Expand Up @@ -912,7 +913,7 @@ class LogicalExpression final : public Expression {

std::string toString() const override;

VariantType eval() const override;
OptVariantType eval() const override;

Status MUST_USE_RESULT prepare() override;

Expand Down
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