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polserver/pol-core/bscript/compiler/analyzer/LocalVariableScope.h

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var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
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#ifndef POLSERVER_LOCALVARIABLESCOPE_H
#define POLSERVER_LOCALVARIABLESCOPE_H
#include <memory>
#include <string>
#include <vector>
Properly scope the compiler includes to the Bscript folder. (#360)
2021-02-25 16:53:22 +01:00
#include "bscript/compiler/model/SimpleTypes.h"
#include "bscript/compiler/model/WarnOn.h"
var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
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namespace Pol::Bscript::Compiler
{
class Report;
Consolidate local variable scope information (#301) Adds: - model/LocalVariableScopeInfo.h Stores, for local variable blocks: - the names of the local variables in the block - the "base index" of those local variables within the current scope The code generator uses these to clean up local variables as they go out of scope. We also need this when writing debug information.
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class LocalVariableScopeInfo;
var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
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class LocalVariableScopes;
class SourceLocation;
class Variable;
class LocalVariableScope
{
public:
explicit LocalVariableScope( LocalVariableScopes&,
Consolidate local variable scope information (#301) Adds: - model/LocalVariableScopeInfo.h Stores, for local variable blocks: - the names of the local variables in the block - the "base index" of those local variables within the current scope The code generator uses these to clean up local variables as they go out of scope. We also need this when writing debug information.
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LocalVariableScopeInfo& );
var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
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~LocalVariableScope();
std::shared_ptr<Variable> create( const std::string& name, WarnOn, const SourceLocation& );
private:
LocalVariableScopes& scopes;
Report& report;
Clean up warnings: size_t/unsigned mixing, unused private variables (#352)
2020-12-01 02:23:03 -08:00
const BlockDepth block_depth;
var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
2020-08-30 01:32:38 -07:00
const unsigned prev_locals;
std::vector<std::shared_ptr<Variable>> shadowing;
Consolidate local variable scope information (#301) Adds: - model/LocalVariableScopeInfo.h Stores, for local variable blocks: - the names of the local variables in the block - the "base index" of those local variables within the current scope The code generator uses these to clean up local variables as they go out of scope. We also need this when writing debug information.
2020-09-12 09:31:52 -07:00
LocalVariableScopeInfo& local_variable_scope_info;
var statements in program blocks (#256) Adds: - analyzer/LocalVariableScope: tracks local variables created within a given scope. - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction. - Detects unused variables during deregistration - analyzer/LocalVariableScopes: this is what LocalVariableScope registers with. - keeps track of the stack of local scopes. - can provide the current local scope, for var statements. Other notes: "Shadowed" variables: this is when a variable in one scope hides a variable in another, like so: var a := 2; if (a) var a := 3; a := 4; endif print(a); // still 2 "debug_variables": We'll use these later when writing debug files.
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};
} // namespace Pol::Bscript::Compiler
#endif // POLSERVER_LOCALVARIABLESCOPE_H
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