JS: autoformat

This commit is contained in:
Asger F
2019-01-24 11:53:54 +00:00
parent 2ae926462c
commit 82c0756248
3 changed files with 48 additions and 60 deletions

View File

@@ -5,7 +5,6 @@
import javascript
module Closure {
/**
* A call to a function in the `goog` namespace such as `goog.provide` or `goog.load`.
*/
@@ -15,64 +14,60 @@ module Closure {
this.getCallee().(DotExpr).getBase() = gv.getAnAccess()
)
}
/** Gets the name of the invoked function. */
string getFunctionName() { result = getCallee().(DotExpr).getPropertyName() }
}
/**
* An expression statement consisting of a call to a function
* in the `goog` namespace.
*/
class GoogFunctionCallStmt extends ExprStmt {
GoogFunctionCallStmt() { super.getExpr() instanceof GoogFunctionCall }
override GoogFunctionCall getExpr() { result = super.getExpr() }
/** Gets the name of the invoked function. */
string getFunctionName() { result = getExpr().getFunctionName() }
/** Gets the `i`th argument to the invoked function. */
Expr getArgument(int i) { result = getExpr().getArgument(i) }
/** Gets an argument to the invoked function. */
Expr getAnArgument() { result = getArgument(_) }
}
private abstract class GoogNamespaceRef extends ExprOrStmt {
abstract string getNamespaceId();
}
abstract private class GoogNamespaceRef extends ExprOrStmt { abstract string getNamespaceId(); }
/**
* A call to `goog.provide`.
*/
class GoogProvide extends GoogFunctionCallStmt, GoogNamespaceRef {
GoogProvide() { getFunctionName() = "provide" }
/** Gets the identifier of the namespace created by this call. */
override string getNamespaceId() { result = getArgument(0).getStringValue() }
}
/**
* A call to `goog.require`.
*/
class GoogRequire extends GoogFunctionCall, GoogNamespaceRef {
GoogRequire() { getFunctionName() = "require" }
/** Gets the identifier of the namespace imported by this call. */
override string getNamespaceId() { result = getArgument(0).getStringValue() }
}
private class GoogRequireImport extends GoogRequire, Import {
/** Gets the module in which this import appears. */
override Module getEnclosingModule() { result = getTopLevel() }
/** Gets the (unresolved) path that this import refers to. */
override PathExpr getImportedPath() {
result = getArgument(0)
}
override PathExpr getImportedPath() { result = getArgument(0) }
}
/**
* A call to `goog.module` or `goog.declareModuleId`.
*/
@@ -81,38 +76,34 @@ module Closure {
getFunctionName() = "module" or
getFunctionName() = "declareModuleId"
}
/** Gets the identifier of the namespace imported by this call. */
override string getNamespaceId() { result = getArgument(0).getStringValue() }
}
/**
* A module using the Closure module system, declared using `goog.module()` or `goog.declareModuleId()`.
*/
class ClosureModule extends Module {
ClosureModule() {
getAChildStmt() instanceof GoogModuleDeclaration
}
ClosureModule() { getAChildStmt() instanceof GoogModuleDeclaration }
/**
* Gets the call to `goog.module` or `goog.declareModuleId` in this module.
*/
GoogModuleDeclaration getModuleDeclaration() {
result = getAChildStmt()
}
GoogModuleDeclaration getModuleDeclaration() { result = getAChildStmt() }
/**
* Gets the namespace of this module.
*/
string getNamespaceId() { result = getModuleDeclaration().getNamespaceId() }
override Module getAnImportedModule() {
exists (GoogRequireImport imprt |
exists(GoogRequireImport imprt |
imprt.getEnclosingModule() = this and
result.(ClosureModule).getNamespaceId() = imprt.getNamespaceId()
)
}
/**
* Gets the top-level `exports` variable in this module, if this module is defined by
* a `good.module` call.
@@ -125,19 +116,19 @@ module Closure {
getModuleDeclaration().getFunctionName() = "module" and
result = getScope().getVariable("exports")
}
override predicate exports(string name, ASTNode export) {
// exports.foo = bar
export.(AssignExpr).getLhs().(PropAccess).accesses(getExportsVariable().getAnAccess(), name)
or
// exports = { foo: bar }
exists (VarDef def |
exists(VarDef def |
def.getTarget() = getExportsVariable().getAReference() and
def.getSource().(ObjectExpr).getPropertyByName(name) = export
)
}
}
/**
* A global Closure script, that is, a toplevel that is executed in the global scope and
* contains a toplevel call to `goog.provide` or `goog.require`.
@@ -145,29 +136,32 @@ module Closure {
class ClosureScript extends TopLevel {
ClosureScript() {
not this instanceof ClosureModule and
getAChildStmt() instanceof GoogProvide or
getAChildStmt() instanceof GoogProvide
or
getAChildStmt().(ExprStmt).getExpr() instanceof GoogRequire
}
/** Gets the identifier of a namespace required by this module. */
string getARequiredNamespace() { result = getAChildStmt().(ExprStmt).getExpr().(GoogRequire).getNamespaceId() }
string getARequiredNamespace() {
result = getAChildStmt().(ExprStmt).getExpr().(GoogRequire).getNamespaceId()
}
/** Gets the identifer of a namespace provided by this module. */
string getAProvidedNamespace() { result = getAChildStmt().(GoogProvide).getNamespaceId() }
}
/**
* Holds if `name` is a closure namespace, including proper namespace prefixes.
*/
pragma[noinline]
predicate isLibraryNamespacePath(string name) {
exists (string namespace | namespace = any(GoogNamespaceRef provide).getNamespaceId() |
exists(string namespace | namespace = any(GoogNamespaceRef provide).getNamespaceId() |
name = namespace.substring(0, namespace.indexOf("."))
or
name = namespace
)
}
/**
* Gets the closure namespace path addressed by the given dataflow node, if any.
*/
@@ -176,21 +170,21 @@ module Closure {
node = DataFlow::globalVarRef(result)
or
isLibraryNamespacePath(result) and
exists (DataFlow::PropRead read | node = read |
exists(DataFlow::PropRead read | node = read |
result = getLibraryAccessPath(read.getBase().getALocalSource()) + "." + read.getPropertyName()
)
or
// Associate an access path with the immediate RHS of a store on a closure namespace.
// This is to support patterns like:
// foo.bar = { baz() {} }
exists (DataFlow::PropWrite write |
exists(DataFlow::PropWrite write |
node = write.getRhs() and
result = getWrittenLibraryAccessPath(write)
)
or
result = node.asExpr().(GoogRequire).getNamespaceId()
}
/**
* Gets the closure namespace path written to by the given property write, if any.
*/

View File

@@ -1039,10 +1039,7 @@ module DataFlow {
or
exists(GlobalVarAccess va |
nd = valueNode(va.(VarUse)) and
if Closure::isLibraryNamespacePath(va.getName()) then
cause = "heap"
else
cause = "global"
if Closure::isLibraryNamespacePath(va.getName()) then cause = "heap" else cause = "global"
)
or
exists(Expr e | e = nd.asExpr() and cause = "call" |

View File

@@ -338,11 +338,10 @@ private class AnalyzedExportAssign extends AnalyzedPropertyWrite, DataFlow::Valu
*/
private class AnalyzedClosureExportAssign extends AnalyzedPropertyWrite, DataFlow::ValueNode {
override AssignExpr astNode;
Closure::ClosureModule mod;
AnalyzedClosureExportAssign() {
astNode.getLhs() = mod.getExportsVariable().getAReference()
}
AnalyzedClosureExportAssign() { astNode.getLhs() = mod.getExportsVariable().getAReference() }
override predicate writes(AbstractValue baseVal, string propName, DataFlow::AnalyzedNode source) {
baseVal = TAbstractModuleObject(astNode.getTopLevel()) and
@@ -359,12 +358,10 @@ private class AnalyzedClosureExportAssign extends AnalyzedPropertyWrite, DataFlo
private class AnalyzedClosureGlobalAccessPath extends AnalyzedNode, AnalyzedPropertyRead {
string accessPath;
AnalyzedClosureGlobalAccessPath() {
accessPath = Closure::getLibraryAccessPath(this)
}
AnalyzedClosureGlobalAccessPath() { accessPath = Closure::getLibraryAccessPath(this) }
override AnalyzedNode localFlowPred() {
exists (DataFlow::PropWrite write |
exists(DataFlow::PropWrite write |
Closure::getWrittenLibraryAccessPath(write) = accessPath and
result = write.getRhs()
)
@@ -373,10 +370,10 @@ private class AnalyzedClosureGlobalAccessPath extends AnalyzedNode, AnalyzedProp
}
override predicate reads(AbstractValue base, string propName) {
exists (Closure::ClosureModule mod |
exists(Closure::ClosureModule mod |
mod.getNamespaceId() = accessPath and
base = TAbstractModuleObject(mod) and
propName = "exports"
)
}
}
}